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"补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明补充说明" && agent-browser wait 400 && agent-browser get value @e14 2>/dev/null; agent-browser eval "document.querySelector('textarea')?.value.replace(/\\s/g,'').length"b1:T38914,[V0_FILE]typescriptreact:file="/app/student/tasks/page.tsx" "use client" import React, { useMemo, useState, useCallback, useRef, useEffect } from "react" import { AlertTriangle, ArrowRight, Bot, CalendarClock, CheckCircle2, ChevronRight, Clock, ExternalLink, FileText, Filter, History, ListChecks, Play, RefreshCw, Search, Send, Sparkles, Star, Target, Trophy, X, ClipboardList, BookOpen, BarChart2, Package, TrendingUp, ShieldCheck, PenLine, FlaskConical, Megaphone, ChevronDown, ChevronUp, ChevronsUpDown, SortAsc, SortDesc, Pencil, Check, Loader2, Bell, Flame, Users, Award, Lightbulb, ThumbsUp, ThumbsDown, CornerDownRight, GraduationCap, Timer, MessageSquare, Layers, PlusCircle, Minus, } from "lucide-react" import { Badge } from "@/components/ui/badge" import { Button } from "@/components/ui/button" import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card" import { Input } from "@/components/ui/input" import { Progress } from "@/components/ui/progress" import { Tabs, TabsList, TabsTrigger, TabsContent } from "@/components/ui/tabs" import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from "@/components/ui/table" import { Separator } from "@/components/ui/separator" import { StudentPageHeader } from "@/components/student/page-header" import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogFooter, } from "@/components/ui/dialog" import { Sheet, SheetContent, SheetHeader, SheetTitle } from "@/components/ui/sheet" import { Textarea } from "@/components/ui/textarea" import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select" import { Popover, PopoverContent, PopoverTrigger } from "@/components/ui/popover" import { Checkbox } from "@/components/ui/checkbox" import { Label } from "@/components/ui/label" // ─── Types ─────────────────────────────────────────────────────────────────── type Status = "inprogress" | "pending" | "done" | "overdue" | "contest" type TaskType = | "市场分析" | "商品机会" | "选品实训" | "竞品分析" | "定价与利润" | "报告撰写" | "竞赛任务" | "关键词研究" | "店铺运营" const statusMeta: Record = { inprogress: { label: "进行中", tone: "bg-primary/10 text-primary border-primary/20" }, pending: { label: "待提交", tone: "bg-amber-500/15 text-amber-700 border-amber-500/30 dark:text-amber-400" }, done: { label: "已完成", tone: "bg-emerald-500/15 text-emerald-700 border-emerald-500/30 dark:text-emerald-400" }, overdue: { label: "逾期", tone: "bg-destructive/15 text-destructive border-destructive/30" }, contest: { label: "竞赛任务", tone: "bg-violet-500/15 text-violet-700 border-violet-500/30 dark:text-violet-400" }, } const typeIconMap: Record = { "市场分析": , "商品机会": , "选品实训": , "竞品分析": , "定价与利润": , "报告撰写": , "竞赛任务": , "关键词研究": , "店铺运营": , } // ─── Rubric ────────────────────────────────────────────────────────────────── const rubricMap: Record = { "市场分析": [ { item: "数据来源完整性", weight: 20, desc: "引用不少于 3 个可靠来源,数据时效性在 3 个月以内" }, { item: "类目与细分市场界定", weight: 15, desc: "准确划定目标类目层级,说明细分逻辑" }, { item: "规模与增速量化", weight: 25, desc: "提供市场 GMV/搜索量等核心指标及同比趋势" }, { item: "需求与痛点洞察", weight: 20, desc: "结合买家评论、问答数据归纳真实需求" }, { item: "结论与可操作建议", weight: 20, desc: "得出明确结论,至少提供 2 条具体跟进行动" }, ], "商品机会": [ { item: "机会指标体系", weight: 20, desc: "定义并量化需求强度、竞争烈度、利润空间三轴" }, { item: "候选品筛选逻辑", weight: 25, desc: "明确准入门槛,从不少于 50 个候选中筛选" }, { item: "差异化方向", weight: 25, desc: "识别现有竞品痛点,提出可落地差异化方案" }, { item: "风险评估", weight: 15, desc: "评估合规/季节性/侵权等关键风险" }, { item: "优先级排序", weight: 15, desc: "对 Top 3 机会给出优先级排序与理由" }, ], "选品实训": [ { item: "关键词聚类分析", weight: 20, desc: "完成不少于 3 个意图簇,覆盖核心/长尾/场景词" }, { item: "BSR/畅销品研究", weight: 20, desc: "深度分析 Top 20 BSR 商品的核心卖点与评分分布" }, { item: "选品候选池构建", weight: 20, desc: "提供 ≥ 10 个候选品及评分依据" }, { item: "盈利测算", weight: 20, desc: "完成完整 P&L 预测,含成本/运费/平台费" }, { item: "选品结论报告", weight: 20, desc: "结论报告 ≥ 800 字,逻辑清晰,图表完整" }, ], "竞品分析": [ { item: "竞品识别完整性", weight: 20, desc: "覆盖直接/间接竞品各不少于 5 个" }, { item: "多维度对比", weight: 30, desc: "从价格/评分/listing/运营/物流等维度系统比较" }, { item: "SWOT 分析", weight: 20, desc: "完成结构化 SWOT 矩阵,有数据支撑" }, { item: "可借鉴策略提炼", weight: 20, desc: "提炼 3 条以上可直接落地的参考策略" }, { item: "数据可视化", weight: 10, desc: "包含雷达图/气泡图等至少 2 种可视化图表" }, ], "定价与利润": [ { item: "成本结构拆解", weight: 25, desc: "完整拆解产品成本/头程/FBA/平台费/广告费" }, { item: "竞争定价分析", weight: 20, desc: "分析竞品价格带分布及价格战触发线" }, { item: "弹性测算", weight: 20, desc: "建立价格弹性模型,预测不同价格点的利润" }, { item: "动态定价策略", weight: 20, desc: "设计节日/旺季/清库存等场景下的定价规则" }, { item: "毛利 & ROI 报表", weight: 15, desc: "输出完整的财务报表,支持多方案对比" }, ], "报告撰写": [ { item: "结构逻辑", weight: 25, desc: "报告结构清晰,有执行摘要,各章节过渡自然" }, { item: "数据支撑充分", weight: 25, desc: "所有论点均有数据/截图/图表支撑" }, { item: "语言表达", weight: 20, desc: "语言专业、简洁,避免口语化表达" }, { item: "可视化质量", weight: 15, desc: "图表配色一致、标题完整、来源注明" }, { item: "结论可操作性", weight: 15, desc: "结论直接映射到商业行动,可衡量" }, ], "竞赛任务": [ { item: "赛题理解深度", weight: 20, desc: "准确识别赛题核心考察点,问题拆解到位" }, { item: "方法论创新性", weight: 25, desc: "采用差异化分析框架或工具组合" }, { item: "数据质量", weight: 20, desc: "数据量充足、来源多元,无明显错误" }, { item: "结论洞察力", weight: 20, desc: "洞察具有商业价值,可指导实际决策" }, { item: "呈现与表达", weight: 15, desc: "PPT/报告排版专业,演讲/答辩逻辑清晰" }, ], "关键词研究": [ { item: "词库覆盖度", weight: 25, desc: "核心词/长尾词/竞品词全面覆盖,总量 ≥ 200 词" }, { item: "搜索意图分类", weight: 20, desc: "按购买意图/信息意图/导航意图分类标注" }, { item: "竞争难度评估", weight: 20, desc: "使用工具量化每个词的竞争烈度与机会值" }, { item: "关键词策略规划", weight: 20, desc: "按 A/B/C 优先级制定投放与优化策略" }, { item: "趋势与季节性分析", weight: 15, desc: "识别词的旺季特征,规划节点投入" }, ], "店铺运营": [ { item: "店铺健康度诊断", weight: 20, desc: "分析账户指标:ODR/LR/VTR 等是否达标" }, { item: "流量结构分析", weight: 20, desc: "拆解自然/广告/站外流量占比及趋势" }, { item: "转化漏斗优化", weight: 25, desc: "识别浏览→加购→购买每个环节的流失原因" }, { item: "运营 SOP 设计", weight: 20, desc: "输出可执行的日/周运营标准操作流程" }, { item: "增长方案", weight: 15, desc: "针对瓶颈提出 3 条带 KPI 的增长行动" }, ], } // ─── Task data ──────────────────────────────────────────────────────────────── type TaskRow = { id: string; title: string; type: TaskType; course: string difficulty: 1|2|3|4|5; due: string; dueSub: string; status: Status weight: number; score: number | null scoreBreakdown?: { item: string; score: number; max: number }[] reviewStatus: "未评阅"|"AI 初评中"|"待教师批阅"|"已评阅"|"-" progress: number; chapters?: string[] subtasks?: { name: string; done: boolean }[] versions?: { v: string; time: string; diff: string }[] aiSuggestion?: string; platform?: string } const INITIAL_TASKS: TaskRow[] = [ // ── 进行中 ─────────────────────────────────────────────────────────────── { id: "T-1042", title: "Amazon 美国站 · 宠物智能饮水机选品分析", type: "选品实训", platform: "Amazon", course: "EC-304", difficulty: 4, due: "今日 23:59", dueSub: "剩余 6 小时 12 分", status: "inprogress", weight: 15, score: null, reviewStatus: "未评阅", progress: 70, chapters: ["4.1 关键词聚类方法论", "4.3 BSR 榜单深度解析", "4.5 选品评分模型", "4.7 P&L 盈利测算实操", "4.9 雷达图与趋势可视化"], subtasks: [ { name: "完成关键词聚类分析(3 个意图簇)", done: true }, { name: "提取 BSR Top 20 选品候选池", done: true }, { name: "完成盈利 P&L 测算(含 FBA 费)", done: true }, { name: "撰写选品结论报告(≥ 800 字)", done: false }, { name: "插入关键词趋势与机会雷达图", done: false }, ], versions: [ { v: "v3 · 当前版本", time: "今天 11:02", diff: "补充关键词聚类结论:3 个意图簇各 ≥ 15 词,新增「静音 & 过滤」长尾词 8 个" }, { v: "v2", time: "昨天 21:08", diff: "完成 BSR Top 20 候选池 + P&L 测算,毛利率区间 18%–24%(FBA 费已对接计算器真实报价)" }, { v: "v1", time: "11-14 18:20", diff: "初稿:锁定「宠物智能饮水机」子类目,定义分析目标与数据口径(亚马逊 US,近 90 天数据)" }, ], aiSuggestion: "当前版本进度 70%,距提交还差「结论报告」和「可视化」两步。针对宠物智能饮水机这个类目的具体建议:① 结论报告中明确对比 ASIN B09X2R5QJP(CR3 第 1,近 90 天月均销 4200 件)与 B08MBZ6LDQ(新入场,差评集中在「噪音大」),写出你的差异化切入点;② P&L 已测算毛利 22%,结论中注明该价格带($29.99–$39.99)的最低盈亏平衡点;③ 雷达图的「竞争烈度」轴数据建议用 CR3(=47%)而非主观评分,更有说服力。", }, { id: "T-1038", title: "TikTok Shop 英国站 · 美妆类目机会扫描报告", type: "市场分析", platform: "TikTok", course: "EC-304", difficulty: 3, due: "明天 18:00", dueSub: "剩余 1 天 7 小时", status: "inprogress", weight: 10, score: null, reviewStatus: "未评阅", progress: 45, chapters: ["3.2 TikTok Shop 类目结构", "3.4 英国消费趋势解读"], subtasks: [ { name: "抓取英国站 Top 100 美妆商品数据", done: true }, { name: "完成品牌集中度与新品率分析", done: true }, { name: "识别 3 个高机会子品类", done: false }, { name: "撰写机会扫描报告正文", done: false }, { name: "制作市场规模趋势图", done: false }, ], versions: [ { v: "v2 · 当前版本", time: "今天 09:30", diff: "完成数据采集部分与品牌分析" }, { v: "v1", time: "11-15 20:10", diff: "初稿框架与数据口径定义" }, ], aiSuggestion: "已完成数据采集阶段,进度良好。建议重点聚焦「底妆」与「防晒」两个子品类——这两类近 90 天搜索量环比增长超 35%,竞争密度相对低。", }, { id: "T-1036", title: "Shopee 台湾站 · 关键词研究:运动户外类目", type: "关键词研究", platform: "Shopee", course: "EC-305", difficulty: 3, due: "11 月 19 日 18:00", dueSub: "剩余 2 天", status: "inprogress", weight: 10, score: null, reviewStatus: "未评阅", progress: 55, chapters: ["5.1 Shopee 关键词工具使用", "5.3 长尾词挖掘策略"], subtasks: [ { name: "建立核心词库(≥ 50 个核心词)", done: true }, { name: "长尾词扩展至 200 个", done: true }, { name: "完成搜索意图分类标注", done: false }, { name: "竞争难度评估与机会值计算", done: false }, { name: "输出关键词策略规划文档", done: false }, ], versions: [ { v: "v2 · 当前版本", time: "今天 14:20", diff: "完成核心词库建设与长尾词扩展" }, { v: "v1", time: "11-16 10:05", diff: "初稿:词库框架与数据来源确认" }, ], aiSuggestion: "词库基础扎实,建议在搜索意图分类时重点区分「信息型」与「购买型」意图词——运动户外类「攻略」类词转化率普遍低于「推荐」类词约 40%,应优先加权购买意图词。", }, { id: "T-1033", title: "Shopee 越南站 · 3C 配件竞品调研与策略分析", type: "竞品分析", platform: "Shopee", course: "EC-305", difficulty: 3, due: "11 月 20 日 18:00", dueSub: "剩余 3 天", status: "inprogress", weight: 10, score: null, reviewStatus: "未评阅", progress: 15, chapters: ["6.2 竞品分析框架", "6.4 东南亚 3C 市场特点"], subtasks: [ { name: "识别直接竞品 10 个,间接竞品 5 个", done: true }, { name: "完成多维度对比表格", done: false }, { name: "撰写 SWOT 矩阵分析", done: false }, { name: "提炼 3 条可借鉴竞品策略", done: false }, { name: "制作竞品定位气泡图", done: false }, ], versions: [{ v: "v1 · 当前版本", time: "昨天 16:45", diff: "竞品识别完成,开始对比分析阶段" }], aiSuggestion: "竞品识别阶段完成得不错。建议接下来优先完成「多维度对比表格」——可直接使用平台数据分析工具导出数据,SWOT 分析建议结合越南消费者偏好本地化品牌的特点展开。", }, { id: "T-1031", title: "Amazon 欧洲站 · 家居收纳类目商品机会分析", type: "商品机会", platform: "Amazon", course: "EC-304", difficulty: 4, due: "11 月 21 日", dueSub: "剩余 4 天", status: "inprogress", weight: 12, score: null, reviewStatus: "未评阅", progress: 30, chapters: ["7.1 机会指标体系搭建", "7.3 欧洲站选品特殊性"], subtasks: [ { name: "建立机会三轴评估模型", done: true }, { name: "从 50+ 候选品中初筛", done: false }, { name: "完成 Top 5 候选差异化方案", done: false }, { name: "风险矩阵评估(合规/侵权/季节)", done: false }, { name: "输出优先级排序报告", done: false }, ], versions: [{ v: "v1 · 当前版本", time: "11-17 22:10", diff: "建立机会三轴评估模型框架" }], aiSuggestion: "欧洲站家居类目当前「模块化收纳」细分正处于增长期,建议候选品聚焦该方向。注意欧洲站需重点核查 CE 认证与 WEEE 注册要求,这是高频扣分项。", }, { id: "T-1028", title: "Temu 北美站 · 女装价格策略研究与店铺定价建模", type: "定价与利润", platform: "Temu", course: "EC-306", difficulty: 4, due: "11 月 23 日", dueSub: "剩余 6 天", status: "inprogress", weight: 12, score: null, reviewStatus: "未评阅", progress: 20, chapters: ["8.1 成本结构拆解方法", "8.3 Temu 平台定价机制"], subtasks: [ { name: "完整拆解 5 个 SKU 的成本结构", done: true }, { name: "竞品价格带分布分析", done: false }, { name: "建立价格弹性测算模型", done: false }, { name: "设计旺季/节日动态定价规则", done: false }, { name: "输出完整毛利 & ROI 报表", done: false }, ], versions: [{ v: "v1 · 当前版本", time: "11-17 19:30", diff: "成本结构拆解完成,开始竞品定价分析" }], aiSuggestion: "成本结构拆解已完成,进度偏慢。建议本周优先完成「价格弹性测算模型」——可复用课程 8.3 的 Excel 模板。注意 Temu 北美站对超低价格有最低利润率要求。", }, // ── 待提交 ─────────────────────────────────────────────────────────────── { id: "T-1029", title: "定价策略设计:家居清洁类目全链路毛利建模", type: "定价与利润", platform: "Amazon", course: "EC-304", difficulty: 4, due: "11 月 22 日", dueSub: "待确认提交", status: "pending", weight: 12, score: null, reviewStatus: "AI 初评中", progress: 100, chapters: ["8.1 成本结构", "8.2 竞争定价分析", "8.3 动态定价策略"], subtasks: [ { name: "完整成本结构拆解(6 个 SKU)", done: true }, { name: "竞品价格带分布分析", done: true }, { name: "价格弹性测算模型", done: true }, { name: "旺季动态定价规则设计", done: true }, { name: "毛利 & ROI 报表输出", done: true }, ], versions: [ { v: "v4 · 当前版本", time: "11-16 23:45", diff: "最终版:补充旺季定价规则与 ROI 敏感性分析" }, { v: "v3", time: "11-15 20:10", diff: "完善弹性模型,修正运费系数" }, { v: "v2", time: "11-14 18:30", diff: "添加竞品价格带分析图" }, { v: "v1", time: "11-13 21:00", diff: "初稿:成本结构与基准定价" }, ], aiSuggestion: "任务已完成,AI 初评中。预计 AI 评分约 84 分,主要扣分项为「动态定价规则」触发条件描述不够量化。建议在等待批阅期间优化旺季触发线的具体数据依据。", }, { id: "T-1026", title: "Amazon FBA 店铺运营健康度全面诊断报告", type: "店铺运营", platform: "Amazon", course: "EC-306", difficulty: 3, due: "11 月 17 日", dueSub: "待确认提交", status: "pending", weight: 10, score: null, reviewStatus: "待教师批阅", progress: 100, chapters: ["9.1 店铺健康度指标体系", "9.3 转化漏斗优化"], subtasks: [ { name: "店铺健康度 KPI 诊断(ODR/LR/VTR)", done: true }, { name: "流量结构拆解分析", done: true }, { name: "转化漏斗各环节分析", done: true }, { name: "运营 SOP 文档输出", done: true }, { name: "增长行动计划制定", done: true }, ], versions: [ { v: "v3 · 当前版本", time: "11-15 22:10", diff: "已提交:补充流量来源对比与增长行动计划" }, { v: "v2", time: "11-14 19:05", diff: "完善转化漏斗分析,添加截图" }, { v: "v1", time: "11-13 20:30", diff: "初稿:健康度诊断" }, ], aiSuggestion: "已进入教师批阅阶段。整体完成度较高,注意转化漏斗分析中「加购→购买」环节的改进建议可以更具体——建议给出具体的 Listing 优化操作项。", }, { id: "T-1024", title: "TikTok Shop 美国站 · 厨房小家电商品机会报告", type: "商品机会", platform: "TikTok", course: "EC-305", difficulty: 3, due: "11 月 16 日", dueSub: "待确认提交", status: "pending", weight: 10, score: null, reviewStatus: "待教师批阅", progress: 100, chapters: ["7.2 TikTok Shop 商品机会矩阵", "7.4 美国站消费品类趋势"], subtasks: [ { name: "完成 3 个机会维度模型构建", done: true }, { name: "Top 5 候选品差异化方案", done: true }, { name: "合规风险评估(UL/FCC)", done: true }, { name: "优先级排序报告", done: true }, ], versions: [ { v: "v3 · 当前版本", time: "11-14 23:30", diff: "最终提交:补充合规风险部分" }, { v: "v2", time: "11-13 18:00", diff: "完善差异化方案" }, { v: "v1", time: "11-12 20:00", diff: "初稿:机会矩阵框架" }, ], aiSuggestion: "报告完整度高,等待教师批阅。建议关注「气炸锅」和「迷你冰箱」这两个子品类——近期在 TikTok LIVE 带货中爆发性增长,可作为后续补充方向。", }, // ── 逾期 ───────────────────────────────────────────────────────────────── { id: "T-1025", title: "第 3 章 AI 辅助实训周报 · 工具使用总结", type: "报告撰写", platform: undefined, course: "EC-304", difficulty: 2, due: "11 月 13 日 23:59", dueSub: "已逾期 4 天", status: "overdue", weight: 8, score: null, reviewStatus: "未评阅", progress: 60, chapters: ["3.5 AI 工具在跨境选品中的应用", "3.6 实训周报写作规范"], subtasks: [ { name: "总结本周使用的 AI 工具(≥ 3 个)", done: true }, { name: "记录工具使用流程与输出结果", done: true }, { name: "对比 AI 输出与人工判断的差异", done: true }, { name: "撰写反思与改进方向(≥ 300 字)", done: false }, { name: "附录:工具截图(≥ 5 张)", done: false }, ], versions: [{ v: "v1 · 当前版本", time: "11-13 15:20", diff: "完成前 3 项子任务,反思部分未写" }], aiSuggestion: "报告已逾期,建议尽快补交。现有完成度 60%,还差「反思与改进方向」和截图附录两部分,预计再花 1 小时可完成。逾期提交上限分数为 85 分,尽早提交损失越小。", }, { id: "T-1020", title: "Shopee 台湾站 · 母婴类目旺季运营分析报告", type: "市场分析", platform: "Shopee", course: "EC-305", difficulty: 3, due: "11 月 10 日 18:00", dueSub: "已逾期 8 天", status: "overdue", weight: 8, score: null, reviewStatus: "未评阅", progress: 40, chapters: ["3.1 Shopee 台湾站市场结构", "3.3 母婴类目消费特点"], subtasks: [ { name: "完成台湾站母婴类目数据采集", done: true }, { name: "旺季(年节/双十一)流��分析", done: true }, { name: "TOP 品牌运营策略对比", done: false }, { name: "旺季选品与库存规划建议", done: false }, { name: "完整报告撰写与图表制作", done: false }, ], versions: [{ v: "v1 · 当前版本", time: "11-09 20:30", diff: "完成数据采集与旺季流量分析" }], aiSuggestion: "已逾期 8 天,逾期提交上限分数为 75 分,每晚提交 1 天上限再降 2 分。建议立即申请延期并尽快提交。核心数据已采集完毕,剩余工作约需 3-4 小时,不要再拖。", }, // ── 已完成 ──────────────────────────────────────────────────────────────── { id: "T-1018", title: "Shopee 越南站 · 3C 配件竞品调研(基础版)", type: "竞品分析", platform: "Shopee", course: "EC-305", difficulty: 2, due: "11 月 10 日", dueSub: "按时提交", status: "done", weight: 10, score: 92, reviewStatus: "已评阅", progress: 100, chapters: ["6.2 竞品分析框架"], subtasks: [ { name: "竞品识别(≥ 10 个)", done: true }, { name: "多维度对比表格", done: true }, { name: "SWOT 分析", done: true }, { name: "策略提炼报告", done: true }, ], scoreBreakdown: [ { item: "竞品识别完整性", score: 18, max: 20 }, { item: "多维度对比", score: 28, max: 30 }, { item: "SWOT 分析", score: 19, max: 20 }, { item: "可借鉴策略提炼", score: 18, max: 20 }, { item: "数据可视化", score: 9, max: 10 }, ], versions: [ { v: "v2 · 提交版本", time: "11-09 22:40", diff: "最终版:补充竞品策略总结" }, { v: "v1", time: "11-08 19:00", diff: "初稿" }, ], aiSuggestion: "得分 92 分,表现优秀。扣分主要在「数据可视化」一项,雷达图标题与坐标轴标注不完整。下次注意补充图表来源说明,可冲击满分。", }, { id: "T-1015", title: "Amazon 美国站 · 宠物类目市场规模与增速分析", type: "��分析", platform: "Amazon", course: "EC-304", difficulty: 3, due: "11 月 06 日", dueSub: "按时提交", status: "done", weight: 10, score: 88, reviewStatus: "已评阅", progress: 100, chapters: ["3.1 市场分析方法论", "3.3 亚马逊类目数据解读"], subtasks: [ { name: "完成市场规模数据采集", done: true }, { name: "同比/环比增速计算", done: true }, { name: "需求与痛点洞察", done: true }, { name: "结论与建议撰写", done: true }, ], scoreBreakdown: [ { item: "数据来源完整性", score: 16, max: 20 }, { item: "类目与细分市场界定", score: 13, max: 15 }, { item: "规模与增速量化", score: 22, max: 25 }, { item: "需求与痛点洞察", score: 19, max: 20 }, { item: "结论与可操作建议", score: 18, max: 20 }, ], versions: [{ v: "v2 · 提交版本", time: "11-05 23:15", diff: "最终版" }], aiSuggestion: "得分 88 分,整体完成质量良好。主要扣分项为「数据来源完整性」,建议在后续报告中增加原始数据截图作为辅助证明。", }, { id: "T-1012", title: "第 2 章关键词研究实操:亚马逊 Home & Kitchen", type: "关键词研究", platform: "Amazon", course: "EC-304", difficulty: 2, due: "10 月 29 日", dueSub: "按时提交", status: "done", weight: 8, score: 95, reviewStatus: "已评阅", progress: 100, chapters: ["2.1 关键词工具使用", "2.3 长尾词策略"], subtasks: [ { name: "建立核心词库(200 词)", done: true }, { name: "搜索意图分类标注", done: true }, { name: "竞争难度评估", done: true }, { name: "策略规划文档", done: true }, ], scoreBreakdown: [ { item: "词库覆盖度", score: 24, max: 25 }, { item: "搜索意图分类", score: 19, max: 20 }, { item: "竞争难度评估", score: 19, max: 20 }, { item: "关键词策略规划", score: 19, max: 20 }, { item: "趋势与季节性分析", score: 14, max: 15 }, ], versions: [{ v: "v1 · 提交版本", time: "10-28 20:30", diff: "一次性完成提交" }], aiSuggestion: "优秀!得分 95 分,词库覆盖度和意图分类都非常扎实。建议在后续关键词类任务中继续保持对长尾词的系统挖掘习惯。", }, { id: "T-1009", title: "Shopee 台湾站 · 运动户外商品机会扫描", type: "商品机会", platform: "Shopee", course: "EC-305", difficulty: 3, due: "10 月 24 日", dueSub: "按时提交", status: "done", weight: 10, score: 85, reviewStatus: "已评阅", progress: 100, chapters: ["7.1 机会识别框架", "7.2 Shopee 类目分析"], subtasks: [ { name: "机会三轴模型构建", done: true }, { name: "候选品初筛(50 个)", done: true }, { name: "Top 3 差异化方案", done: true }, { name: "优先级排序报告", done: true }, ], scoreBreakdown: [ { item: "机会指标体系", score: 17, max: 20 }, { item: "候选品筛选逻辑", score: 21, max: 25 }, { item: "差异化方向", score: 22, max: 25 }, { item: "风险评估", score: 12, max: 15 }, { item: "优先级排序", score: 13, max: 15 }, ], versions: [{ v: "v2 · 提交版本", time: "10-23 22:00", diff: "最终版" }], aiSuggestion: "得分 85 分,风险评估部分偏弱——台湾站运动户外类的季节性风险和库存风险未充分讨论,下次注意。", }, { id: "T-1006", title: "Amazon 日本站 · 家品类定价与竞争分析", type: "定价与利润", platform: "Amazon", course: "EC-304", difficulty: 3, due: "10 月 18 日", dueSub: "按时提交", status: "done", weight: 12, score: 90, reviewStatus: "已评阅", progress: 100, chapters: ["8.1 成本结构拆解方法", "8.2 竞争定价分析", "8.3 动态定价策略"], subtasks: [ { name: "成本结构拆解(4 个 SKU)", done: true }, { name: "日本站竞品价格带分析", done: true }, { name: "价格弹性测算", done: true }, { name: "毛利报表", done: true }, ], scoreBreakdown: [ { item: "成本结构拆解", score: 23, max: 25 }, { item: "竞争定价分析", score: 18, max: 20 }, { item: "弹性测算", score: 18, max: 20 }, { item: "动态定价策略", score: 17, max: 20 }, { item: "毛利 & ROI 报表", score: 14, max: 15 }, ], versions: [{ v: "v2 · 提交版本", time: "10-17 21:30", diff: "最终版" }], aiSuggestion: "得分 90 分,整体优秀。动态定价策略部分可以更细化触发条件,是未来提分的主要方向。", }, { id: "T-1003", title: "第 1 章实训:亚马逊类目入门扫描", type: "市场分析", platform: "Amazon", course: "EC-304", difficulty: 1, due: "10 月 10 日", dueSub: "按时提交", status: "done", weight: 5, score: 96, reviewStatus: "已评阅", progress: 100, chapters: ["1.1 亚马逊平台概述", "1.3 类目扫描方法"], subtasks: [ { name: "选择并描述一个目标类目", done: true }, { name: "整理类目基本数据", done: true }, { name: "简要总结(200 字)", done: true }, ], scoreBreakdown: [ { item: "数据来源完整性", score: 19, max: 20 }, { item: "类目与细分市场界定", score: 15, max: 15 }, { item: "规模与增速量化", score: 24, max: 25 }, { item: "需求与痛点洞察", score: 19, max: 20 }, { item: "结论与可操作建议", score: 19, max: 20 }, ], versions: [{ v: "v1 · 提交版本", time: "10-09 19:00", diff: "按时提交" }], aiSuggestion: "首个实训任务完成得非常好,得分 96 分!保持这种严谨的数据收集习惯,在后续高难度任务中会非常受益。", }, // ── 竞赛任务 ───────────────────────────────────────────────────────────── { id: "T-9001", title: "第十二届全国跨境电商创新创业大赛 · 校内选拔", type: "竞赛任务", platform: undefined, course: "EC-304", difficulty: 5, due: "11 月 28 日", dueSub: "剩余 11 天", status: "contest", weight: 20, score: null, reviewStatus: "-", progress: 10, chapters: ["所有章节", "选读:跨境电商大赛历届赛题"], subtasks: [ { name: "研读赛题并拆解考察维度", done: true }, { name: "组建分析框架与分工计划", done: false }, { name: "完成 3 个赛题方向的数据采集", done: false }, { name: "撰写主体分析内容(≥ 5000 字)", done: false }, { name: "制作答辩 PPT(≥ 20 页)", done: false }, { name: "内部预讲并修改", done: false }, ], versions: [{ v: "v1 · 当前版本", time: "11-17 10:30", diff: "赛题理解与框架规划" }], aiSuggestion: "竞赛任务难度最高,建议尽早启动。历届获奖作品通常在「方法论创新性」和「洞察力」两个维度得分最高。建议采用「机会扫描→竞品对标→定价测算」的三段式框架。", }, { id: "T-9002", title: "省级外贸新业态创新创业大赛 · 跨境电商赛道", type: "竞赛任务", platform: undefined, course: "EC-304", difficulty: 5, due: "12 月 15 日", dueSub: "剩余 28 天", status: "contest", weight: 25, score: null, reviewStatus: "-", progress: 0, chapters: ["所有章节", "选读:省赛评分标准"], subtasks: [ { name: "阅读并理解省赛评分标准", done: false }, { name: "确定参赛方向与选品类目", done: false }, { name: "完成完整市场分析报告", done: false }, { name: "制作商业计划书(BP)", done: false }, { name: "准备路演 PPT 与答辩材料", done: false }, { name: "参加校内选拔赛", done: false }, ], versions: [{ v: "v0 · 规划阶段", time: "11-17 10:30", diff: "任务初始化:省赛报名确认,尚未开始实质性内容输出" }], aiSuggestion: "省赛竞争激烈,建议在校赛 T-9001 基础上复用数据和框架,减少重复工作。省赛评分中「商业可行性」权重较高,需要补充供应链对接和首批测款方案。", }, // ── 新增实训任务(进行中)──────────────────────────────────────────────── { id: "T-1045", title: "Amazon 日本站 · 厨房小家电竞品对标报告", type: "竞品分析", platform: "Amazon", course: "EC-304", difficulty: 3, due: "11 月 25 日", dueSub: "剩余 8 天", status: "inprogress", weight: 10, score: null, reviewStatus: "未评阅", progress: 40, chapters: ["6.2 竞品分析框架", "6.5 日本市场消费特点"], subtasks: [ { name: "识别直接竞品 10 个、间接竞品 5 个", done: true }, { name: "完成多维度对比矩阵", done: true }, { name: "撰写 SWOT 矩阵分析", done: false }, { name: "提炼 3 条可借鉴竞品策略", done: false }, { name: "制作气泡定位图与雷达图", done: false }, ], versions: [ { v: "v2 · 当前版本", time: "11-19 16:40", diff: "完成竞品识别与多维度对比矩阵" }, { v: "v1", time: "11-18 21:10", diff: "初稿:确定竞品范围与数据口径" }, ], aiSuggestion: "日本站厨房小家电竞争激烈,头部品牌 CR3 达 62%,建议 SWOT 中重点分析「品牌忠诚度壁垒」这一结构性威胁。气泡图三轴(价格×评分×月销量)须用实际估算数值,不可使用区间描述。", }, { id: "T-1044", title: "Lazada 泰国站 · 家居用品市场规模扫描", type: "市场分析", platform: "Lazada", course: "EC-305", difficulty: 2, due: "11 月 26 日", dueSub: "剩余 9 天", status: "inprogress", weight: 8, score: null, reviewStatus: "未评阅", progress: 35, chapters: ["3.6 东南亚新兴市场解读", "3.8 Lazada 平台数据工具"], subtasks: [ { name: "完成泰国站家居用品类目数据采集", done: true }, { name: "计算市场规模与 12 个月增速", done: false }, { name: "识别 3 个高增速细分品类", done: false }, { name: "撰写需求与痛点洞察", done: false }, { name: "输出结论与建议", done: false }, ], versions: [{ v: "v1 · 当前版本", time: "11-19 10:05", diff: "数据采集完成,进入分析阶段" }], aiSuggestion: "泰国站近 12 个月家居用品搜索量增速约 28%,其中「收纳整理」和「智能家居周边」子品类增速超 45%。建议重点聚焦这两个方向,数据来源可交叉使用 Lazada 卖家中心后台与第三方工具。", }, { id: "T-1043", title: "Shopee 马来西亚站 · 宠物用品关键词研究", type: "关键词研究", platform: "Shopee", course: "EC-305", difficulty: 2, due: "11 月 27 日", dueSub: "剩余 10 天", status: "inprogress", weight: 8, score: null, reviewStatus: "未评阅", progress: 60, chapters: ["5.1 Shopee 关键词工具使用", "5.4 东南亚双语词库构建"], subtasks: [ { name: "建立核心词库(≥ 50 词,含马来语关键词)", done: true }, { name: "长尾词扩展至 200 词", done: true }, { name: "完成搜索意图分类标注", done: true }, { name: "竞争难度评估与 ABC 分级", done: false }, { name: "输出关键词策略规划文档", done: false }, ], versions: [ { v: "v2 · 当前版本", time: "11-20 13:30", diff: "完成词库建设与意图分类" }, { v: "v1", time: "11-18 19:00", diff: "初稿:词库框架与双语词覆盖方案" }, ], aiSuggestion: "马来语关键词覆盖是本站点的核心差异化加分项——建议在词库中至少保持 20% 马来语词(如「makanan kucing」「anjing mainan」),购买意图词在马来西亚站转化率比英语词高约 30%。", }, { id: "T-1041", title: "Amazon 欧洲站 · 户外运动装备选品实训", type: "选品实训", platform: "Amazon", course: "EC-306", difficulty: 4, due: "11 月 28 日", dueSub: "剩余 11 天", status: "inprogress", weight: 15, score: null, reviewStatus: "未评阅", progress: 25, chapters: ["4.1 关键词聚类方法论", "4.6 欧洲站合规要点", "4.7 P&L 盈利测算实操"], subtasks: [ { name: "完成关键词聚类分析(3 个意图簇)", done: true }, { name: "提取 BSR Top 20 候选品并精选 10 个", done: false }, { name: "完成盈利 P&L 测算(含 FBA 欧洲费率)", done: false }, { name: "核查 CE/WEEE 合规要求", done: false }, { name: "撰写选品结论报告(≥ 800 字)", done: false }, ], versions: [{ v: "v1 · 当前版本", time: "11-20 09:00", diff: "关键词聚类完成,3 个意图簇各 ≥ 18 词" }], aiSuggestion: "欧洲站户外装备进入壁垒高,建议 P&L 测算时把 CE 认证费用(约 €800-2500 一次性)和 VAT 注册费用(德/法/意三国需分别注册)都算入成本结构,否则毛利预测会偏高约 5-8 个百分点。", }, { id: "T-1040", title: "TikTok Shop 东南亚站 · 零食饮料商品机会��析", type: "商品机会", platform: "TikTok", course: "EC-305", difficulty: 3, due: "11 月 29 日", dueSub: "剩余 12 天", status: "inprogress", weight: 10, score: null, reviewStatus: "未评阅", progress: 20, chapters: ["7.2 TikTok Shop 商品机会矩阵", "7.5 东南亚食品类合规要点"], subtasks: [ { name: "建立机会三轴评估模型", done: true }, { name: "从 50+ 候选品中完成初筛", done: false }, { name: "Top 5 候选品差异化方案", done: false }, { name: "食品合规风险评估(各国清关差异)", done: false }, { name: "优先级排序报告", done: false }, ], versions: [{ v: "v1 · 当前版本", time: "11-20 17:20", diff: "建立机会三轴模型,候选品漏斗设计完成" }], aiSuggestion: "TikTok Shop 东南亚零食类目「爆款速生速死」特征明显,建议机会评估中加入「保质期风险」维度——保质期 < 12 个月的产品海外备货风险极高,应单独标记。候选品建议聚焦「泰国网红零食」和「韩国爆款小吃」两个消费者认知度已较高的方向。", }, { id: "T-1039", title: "Amazon 美国站 · 家居收纳定价策略优化", type: "定价与利润", platform: "Amazon", course: "EC-306", difficulty: 3, due: "12 月 02 日", dueSub: "剩余 15 天", status: "inprogress", weight: 10, score: null, reviewStatus: "未评阅", progress: 30, chapters: ["8.1 成本结构拆解方法", "8.4 Amazon 价格战防御策略"], subtasks: [ { name: "完整拆解 4 个 SKU 成本结构", done: true }, { name: "完成竞品价格带分布分析", done: true }, { name: "建立价格弹性测算模型", done: false }, { name: "设计三种场景定价规则", done: false }, { name: "输出毛利 & ROI 报表(三方案对比)", done: false }, ], versions: [ { v: "v2 · 当前版本", time: "11-19 22:15", diff: "完成成本拆解与竞品价格带分析" }, { v: "v1", time: "11-18 20:00", diff: "初稿:4 个 SKU 成本结构框架" }, ], aiSuggestion: "美国站家居收纳价格带 $15-35 竞争最激烈,你的主 SKU 若落在这个区间需要着重分析价格战防御线。弹性模型建议测算「降价 15% 需要增加多少销量才能保持等利润」,这个数字对定价决策最有说服力。", }, { id: "T-1037", title: "Shopee 菲律宾站 · 母婴用品运营诊断报告", type: "店铺运营", platform: "Shopee", course: "EC-306", difficulty: 3, due: "12 月 04 日", dueSub: "剩余 17 天", status: "inprogress", weight: 10, score: null, reviewStatus: "未评阅", progress: 15, chapters: ["9.1 店铺健康度指标体系", "9.4 Shopee 平台运营规则"], subtasks: [ { name: "完成店铺健康度 KPI 诊断", done: true }, { name: "拆解流量结构(自然/广告/活动)", done: false }, { name: "转化漏斗各环节流失原因分析", done: false }, { name: "输出运营 SOP 文档", done: false }, { name: "制定 3 条带 KPI 增长行动计划", done: false }, ], versions: [{ v: "v1 · 当前版本", time: "11-20 15:00", diff: "完成店铺健康度 KPI 诊断,ODR 偏高需重点分析" }], aiSuggestion: "菲律宾站母婴类目流量来源中活动流量占比通常超 50%,日常流量结构分析时要单独剔除大促期间数据,否则基期偏高会让改进效果不明显。重点关注你的 ODR 指标——超过 1% 将触发平台警告。", }, { id: "T-1035", title: "Amazon 德国站 · 工具五金类目报告撰写", type: "报告撰写", platform: "Amazon", course: "EC-304", difficulty: 3, due: "12 月 05 日", dueSub: "剩余 18 天", status: "inprogress", weight: 10, score: null, reviewStatus: "未评阅", progress: 50, chapters: ["报告撰写规范", "11.3 德国站合规报告格式"], subtasks: [ { name: "完成执行摘要(≤ 200 字,结论先行)", done: true }, { name: "完善目录与章节逻辑", done: true }, { name: "所有论点配图表与数据来源", done: false }, { name: "语言专业性检查与修改", done: false }, { name: "最终格式规范检查", done: false }, ], versions: [ { v: "v2 · 当前版本", time: "11-20 11:20", diff: "完成执行摘要与目录结构" }, { v: "v1", time: "11-18 22:00", diff: "初稿:各章节框架搭建" }, ], aiSuggestion: "德国站报告建议在「数据可视化」部分增加 CE 合规状态矩阵图——将候选品的合规状态与风险等级用颜色编码矩阵展示,这在德国市场分析报告中是加分亮点。注意德语关键词与英语关键词的搜索量不能直接对比,须分别注明。", }, { id: "T-1034", title: "Temu 欧洲站 · 饰品类目市场机会初探", type: "市场分析", platform: "Temu", course: "EC-305", difficulty: 2, due: "12 月 06 日", dueSub: "剩余 19 天", status: "inprogress", weight: 8, score: null, reviewStatus: "未评阅", progress: 20, chapters: ["3.7 Temu 平台机制解读", "3.9 欧洲时尚类目消费特点"], subtasks: [ { name: "完成欧洲站饰品类目数据采集", done: true }, { name: "计算市场规模与增速", done: false }, { name: "细分市场拆解(按材质/风格/价格带)", done: false }, { name: "竞争格局扫描(品牌集中度)", done: false }, { name: "结论与建议输出", done: false }, ], versions: [{ v: "v1 · 当前版本", time: "11-20 08:30", diff: "数据采集完成" }], aiSuggestion: "Temu 欧洲站饰品类竞争相对分散(CR5 约 28%),是新卖家入场窗口期。建议重点扫描「合成宝石」和「简约北欧风」两个细分,这两个方向近期在欧洲 TikTok 的种草内容中频繁出现,预计会带来流量。", }, { id: "T-1032", title: "Amazon 美国站 · 运动健身器材选品实训(进阶)", type: "选品实训", platform: "Amazon", course: "EC-306", difficulty: 4, due: "12 月 08 日", dueSub: "剩余 21 天", status: "inprogress", weight: 15, score: null, reviewStatus: "未评阅", progress: 10, chapters: ["4.1-4.9 完整选品方法论", "4.10 运动健身类特殊合规"], subtasks: [ { name: "关键词聚类(3 个意图簇,≥ 15 词/簇)", done: true }, { name: "BSR Top 20 深度解析候选池", done: false }, { name: "P&L 盈利测算(含 FBA + 广告费)", done: false }, { name: "运动器材合规核查(ASTM/CPSC)", done: false }, { name: "选品结论报告(≥ 800 字)", done: false }, ], versions: [{ v: "v1 · 当前版本", time: "11-19 21:40", diff: "关键词聚类完成:核心购买词簇 18 词/场景词簇 20 词/长尾比较词簇 16 词" }], aiSuggestion: "运动健身器材类 FBA 体积费用是关键变量——哑铃/划船机等大件产品 FBA 费用可能占售价 35%+,建议在候选品筛选阶段就加入「FBA 费用/售价比」这个准入门槛指标,先于 BSR 分析进行淘汰。", }, // ── 新增实训任务(待提交)──────────────────────────────────────────────── { id: "T-1030", title: "TikTok Shop 泰国站 · 美妆护肤竞品研究报告", type: "竞品分析", platform: "TikTok", course: "EC-305", difficulty: 3, due: "11 月 20 日", dueSub: "待确认提交", status: "pending", weight: 10, score: null, reviewStatus: "AI 初评中", progress: 100, chapters: ["6.2 竞品分析框架", "6.6 东南亚美妆竞争格局"], subtasks: [ { name: "竞品识别(直接 10 + 间接 5)", done: true }, { name: "多维度对��矩阵", done: true }, { name: "SWOT 矩阵分析", done: true }, { name: "可借鉴策略 ≥ 3 条", done: true }, { name: "雷达图 + 气泡图", done: true }, ], versions: [ { v: "v3 · 当前版本", time: "11-19 23:55", diff: "最终版:补充气泡图与策略总结" }, { v: "v2", time: "11-18 20:30", diff: "完成 SWOT 分析与雷达图" }, { v: "v1", time: "11-17 18:00", diff: "初稿:竞品识别完成" }, ], aiSuggestion: "AI 初评中,预计约 82 分。主要扣分项在「数据可视化」——气泡图缺少坐标轴标签。建议在等待批阅期间补充图表说明文字,教师批阅前可更新版本。", }, { id: "T-1027", title: "Amazon 加拿大站 · 户外露营商品机会报告", type: "商品机会", platform: "Amazon", course: "EC-306", difficulty: 3, due: "11 月 19 日", dueSub: "待确认提交", status: "pending", weight: 10, score: null, reviewStatus: "待教师批阅", progress: 100, chapters: ["7.1 机会指标体系搭建", "7.6 加拿大市场特点"], subtasks: [ { name: "机会三轴评估模型(50+ 候选初筛)", done: true }, { name: "Top 5 候选品差异化方案", done: true }, { name: "合规风险评估(CSA 认证)", done: true }, { name: "优先级排序报告", done: true }, ], versions: [ { v: "v3 · 当前版本", time: "11-18 22:10", diff: "最终版:补充加拿大站运费与关税分析" }, { v: "v2", time: "11-17 19:00", diff: "完成合规评估与差异化方案" }, { v: "v1", time: "11-16 20:00", diff: "初稿:机会模型框架" }, ], aiSuggestion: "已进入教师批阅阶段,整体完成质量良好。加拿大露营类目夏季(5-8月)需求集中,在优先级报告中补充旺季时序规划会是一个加分细节。", }, { id: "T-1023", title: "Shopee 印尼站 · 3C 数码店铺运营健康诊断", type: "店铺运营", platform: "Shopee", course: "EC-306", difficulty: 3, due: "11 月 16 日", dueSub: "待确认提交", status: "pending", weight: 10, score: null, reviewStatus: "待教师批阅", progress: 100, chapters: ["9.1 店铺健康度指标体系", "9.5 印尼站运营规则"], subtasks: [ { name: "KPI 诊断(ODR/LR/VTR)", done: true }, { name: "流量结构拆解分析", done: true }, { name: "转化漏斗流失原因分析", done: true }, { name: "运营 SOP 输出", done: true }, { name: "增长行动计划制定", done: true }, ], versions: [ { v: "v3 · 当前版本", time: "11-15 23:00", diff: "最终版:增长计划补充量化 KPI" }, { v: "v2", time: "11-14 18:30", diff: "完善转化漏斗分析" }, { v: "v1", time: "11-13 19:00", diff: "初稿:健康度诊断" }, ], aiSuggestion: "已提交教师批阅。印尼站转化漏斗分析部分的「加购→购买」流失改进建议可以更具体——注意印尼用户分期付款使用率高达 60%,是加购不成交的核心原因,建议在改进建议中明确提出。", }, { id: "T-1022", title: "Amazon 墨西哥站 · 家居清洁类目市场报告", type: "市场分析", platform: "Amazon", course: "EC-306", difficulty: 3, due: "11 月 15 日", dueSub: "待确认提交", status: "pending", weight: 10, score: null, reviewStatus: "AI 初评中", progress: 100, chapters: ["3.10 拉美市场特点", "3.11 Amazon 墨西哥站数据工具"], subtasks: [ { name: "市场规模与增速数据采集", done: true }, { name: "细分品类拆解分析", done: true }, { name: "需求与痛点洞察", done: true }, { name: "结论与建议输出", done: true }, ], versions: [ { v: "v2 · 当前版本", time: "11-14 22:40", diff: "最终版:补充拉美消费特征分析" }, { v: "v1", time: "11-12 20:00", diff: "初稿" }, ], aiSuggestion: "AI 初评中,预计约 80 分。扣分项主要在数据来源——墨西哥站可用的第三方工具较少,需注明数据局限性并使用亚马逊官方 Best Sellers 排行作为辅助来源。", }, { id: "T-1021", title: "TikTok Shop 美国站 · 关键词研究:运动服饰", type: "关键词研究", platform: "TikTok", course: "EC-305", difficulty: 3, due: "11 月 14 日", dueSub: "待确认提交", status: "pending", weight: 8, score: null, reviewStatus: "待教师批阅", progress: 100, chapters: ["5.2 TikTok 关键词与标签研究", "5.5 美国运动服饰搜索趋势"], subtasks: [ { name: "核心词库(≥ 50 词)", done: true }, { name: "长尾词扩展至 200 词", done: true }, { name: "搜索意图分类标注", done: true }, { name: "竞争难度评估与 ABC 分级", done: true }, { name: "关键词策略规划文档", done: true }, ], versions: [ { v: "v2 · 当前版本", time: "11-13 23:30", diff: "最终版:补充季节性趋势分析" }, { v: "v1", time: "11-11 20:00", diff: "初稿" }, ], aiSuggestion: "已提交教师批阅,整体完成度高。TikTok 运动服饰关键词特点是「标签词」与「搜索词」双轨并行,建议在策略部分补充 Hashtag 与关键词的协同投放逻辑。", }, { id: "T-1019", title: "Temu 北美站 · 3C 配件定价研究报告", type: "定价与利润", platform: "Temu", course: "EC-306", difficulty: 3, due: "11 月 13 日", dueSub: "待确认提交", status: "pending", weight: 10, score: null, reviewStatus: "待教师批阅", progress: 100, chapters: ["8.3 Temu 平台定价机制", "8.5 北美 3C 价格竞争分析"], subtasks: [ { name: "完整成本结构拆解(5 SKU)", done: true }, { name: "竞品价格带分布分析", done: true }, { name: "价格弹性测算模型", done: true }, { name: "动态定价规则设计", done: true }, { name: "毛利 & ROI 报表输出", done: true }, ], versions: [ { v: "v4 · 当前版本", time: "11-12 22:00", diff: "最终版:ROI 敏感性分析补充" }, { v: "v3", time: "11-11 19:00", diff: "完善弹性模型与动态定价规则" }, { v: "v2", time: "11-10 18:00", diff: "完成竞品价格分析" }, { v: "v1", time: "11-09 20:00", diff: "初稿" }, ], aiSuggestion: "已进入批阅阶段。Temu 北美 3C 配件定价最低利润率要求(通常 ≥ 8%)是本报告特别需要注明的合规边界,如果没有体现这条规则会影响「动态定价策略」维度得分。", }, // ── 新增实训任务(逾期)──────────────────────────────────────────────── { id: "T-1017", title: "Amazon 英国站 · 母婴类目商品机会扫描", type: "商品机会", platform: "Amazon", course: "EC-304", difficulty: 3, due: "11 月 05 日", dueSub: "已逾期 13 天", status: "overdue", weight: 10, score: null, reviewStatus: "未评阅", progress: 55, chapters: ["7.1 机会指标体系搭建", "7.7 英国母婴合规要求"], subtasks: [ { name: "建立机会三轴评估模型", done: true }, { name: "从 50+ 候选中完成初筛", done: true }, { name: "Top 5 候选品差异化方案", done: true }, { name: "合规风险评估(UKCA/BS EN 安全标准)", done: false }, { name: "优先级排序报告", done: false }, ], versions: [{ v: "v1 · 当前版本", time: "11-04 21:00", diff: "完成初筛与差异化方案,合规部分未完成" }], aiSuggestion: "已逾期 13 天,逾期提交上限分数为 72 分。合规评估和优先级报告合计约 1.5 小时工作量,��议今��完成提交。英国母婴类 UKCA 标准是脱欧后独立认证体系,务必与 CE 分开注明。", }, { id: "T-1016", title: "第 4 章实训周报 · 竞品分析工具使用总结", type: "报告撰写", platform: undefined, course: "EC-305", difficulty: 2, due: "11 月 03 日 23:59", dueSub: "已逾期 15 天", status: "overdue", weight: 6, score: null, reviewStatus: "未评阅", progress: 70, chapters: ["4.8 竞品分析工具对比", "4.9 周报写作规范"], subtasks: [ { name: "总结本周竞品分析工具使用情况", done: true }, { name: "对比至少 2 款工具的优劣势", done: true }, { name: "记录实际操作截图(≥ 5 张)", done: true }, { name: "撰写反思与下周改进计划", done: false }, { name: "格式规范检查(字体/配色/页码)", done: false }, ], versions: [{ v: "v1 · 当前版本", time: "11-02 16:30", diff: "完成前 3 项,反思部分空白" }], aiSuggestion: "已逾期 15 天,每晚 1 天上限再降 2 分,逾期提交上限现为 70 分。还差「反思」和格式检查两项,预计 30 分钟可完成,强烈建议今天提交。", }, { id: "T-1014", title: "Shopee 泰国站 · 家电类目关键词研究(基础)", type: "关键词研究", platform: "Shopee", course: "EC-304", difficulty: 2, due: "10 月 31 日", dueSub: "已逾期 18 天", status: "overdue", weight: 6, score: null, reviewStatus: "未评阅", progress: 30, chapters: ["5.1 Shopee 关键词工具", "5.6 泰国站电商词库特点"], subtasks: [ { name: "建立核心词库(≥ 50 词)", done: true }, { name: "长尾词扩展至 200 词", done: false }, { name: "搜索意图分类标注", done: false }, { name: "竞争难度评估", done: false }, { name: "策略规划文档", done: false }, ], versions: [{ v: "v1 · 当前版本", time: "10-30 14:00", diff: "核心词库完成,后续工作中断" }], aiSuggestion: "已逾期 18 天,逾期上限分数已降至 64 分。建议考虑是否还有提交价值,如果决定提交,核心词库已有 50 词基础,完成其余 4 项约需 3-4 小时。", }, { id: "T-1013", title: "Amazon 日本站 · 家品类店铺诊断报告", type: "店铺运营", platform: "Amazon", course: "EC-304", difficulty: 2, due: "10 月 28 日 18:00", dueSub: "已逾期 21 天", status: "overdue", weight: 8, score: null, reviewStatus: "未评阅", progress: 45, chapters: ["9.1 店铺健康度指标", "9.6 亚马逊日本站运营特点"], subtasks: [ { name: "健康度 KPI 诊断", done: true }, { name: "流量结构分析", done: true }, { name: "转化漏斗分析", done: false }, { name: "运营 SOP 输出", done: false }, { name: "增长行动计划", done: false }, ], versions: [{ v: "v1 · 当前版本", time: "10-27 19:20", diff: "完成 KPI 诊断与流量结构分析" }], aiSuggestion: "已逾期 21 天,建议与教师沟通是否可以提交。日本站运营诊断的特殊性在于「乐天生态」对 Amazon 流量的分流,如果在流量结构分析中忽略这个背景,数据解读可能失准。", }, // ── 新增实训任务(已完成)──────────────────────────────────────────────── { id: "T-1011", title: "Amazon 欧洲站 · 家居收纳市场分析报告", type: "市场分析", platform: "Amazon", course: "EC-305", difficulty: 3, due: "10 月 22 日", dueSub: "按时提交", status: "done", weight: 10, score: 87, reviewStatus: "已评阅", progress: 100, chapters: ["3.1 市场分析方法论", "3.5 欧洲站数据来源"], subtasks: [ { name: "完成市场规模与增速数据采集", done: true }, { name: "细分市场拆解", done: true }, { name: "需求与痛点洞察", done: true }, { name: "结论与建议撰写", done: true }, ], scoreBreakdown: [ { item: "数据来源完整性", score: 17, max: 20 }, { item: "类目与细分市场界定", score: 13, max: 15 }, { item: "规模与增速量化", score: 21, max: 25 }, { item: "需求与痛点洞察", score: 18, max: 20 }, { item: "结论与可操作建议", score: 18, max: 20 }, ], versions: [{ v: "v2 · 提交版本", time: "10-21 23:00", diff: "最终版" }], aiSuggestion: "得分 87 分,扣分在「规模与增速量化」——GMV 数据引用了 2022 年数据,时效性不足。后续报告注意数据时效要在 3 个月以内。", }, { id: "T-1010", title: "Shopee 越南站 · 运动户外关键词研究", type: "关键词研究", platform: "Shopee", course: "EC-305", difficulty: 2, due: "10 月 20 日", dueSub: "按时提交", status: "done", weight: 8, score: 91, reviewStatus: "已评阅", progress: 100, chapters: ["5.1 Shopee 关键词工具", "5.7 越南站词库构建要点"], subtasks: [ { name: "核心词库(200 词)", done: true }, { name: "意图分类标注", done: true }, { name: "竞争难度评估", done: true }, { name: "策略规划文档", done: true }, ], scoreBreakdown: [ { item: "词库覆盖度", score: 23, max: 25 }, { item: "搜索意图分类", score: 18, max: 20 }, { item: "竞争难度评估", score: 19, max: 20 }, { item: "关键词策略规划", score: 18, max: 20 }, { item: "趋势与季节性分析", score: 13, max: 15 }, ], versions: [{ v: "v2 · 提交版本", time: "10-19 21:00", diff: "最终版" }], aiSuggestion: "得分 91 分,表现优秀!扣分在「趋势与季节性分析」——越南站双十一旺季特征未充分分析。下次关注越南本地节日(越南国庆/元旦)对搜索量的影响。", }, { id: "T-1008", title: "Amazon 美国站 · 宠物饮水机竞品分析报告", type: "竞品分析", platform: "Amazon", course: "EC-304", difficulty: 3, due: "10 月 15 日", dueSub: "按时提交", status: "done", weight: 10, score: 89, reviewStatus: "已评阅", progress: 100, chapters: ["6.2 竞品分析框架", "6.3 宠物智能用品竞争格局"], subtasks: [ { name: "竞品识别(直接 10 + 间接 5)", done: true }, { name: "多维度对比矩阵", done: true }, { name: "SWOT 分析", done: true }, { name: "策略提炼报告", done: true }, ], scoreBreakdown: [ { item: "竞品识别完整性", score: 18, max: 20 }, { item: "多维度对比", score: 27, max: 30 }, { item: "SWOT 分析", score: 18, max: 20 }, { item: "可借鉴策略提炼", score: 17, max: 20 }, { item: "数据可视化", score: 9, max: 10 }, ], versions: [{ v: "v2 · 提交版本", time: "10-14 22:00", diff: "最终版" }], aiSuggestion: "得分 89 分,整体优秀。气泡图数据来源说明缺失是主要扣分点,下次图表务必注明工具名称与截图日期。", }, { id: "T-1007", title: "TikTok Shop · 直播选品策略报告", type: "商品机会", platform: "TikTok", course: "EC-305", difficulty: 3, due: "10 月 12 日", dueSub: "按时提交", status: "done", weight: 10, score: 83, reviewStatus: "已评阅", progress: 100, chapters: ["7.3 TikTok 直播电商选品逻辑", "7.8 爆款生命周期管理"], subtasks: [ { name: "机会三轴评估模型", done: true }, { name: "Top 5 候选品差异化方案", done: true }, { name: "合规风险评估", done: true }, { name: "优先级排序报告", done: true }, ], scoreBreakdown: [ { item: "机会��标体系", score: 16, max: 20 }, { item: "候选品筛选逻辑", score: 20, max: 25 }, { item: "差异化方向", score: 20, max: 25 }, { item: "风险评估", score: 13, max: 15 }, { item: "优先级排序", score: 14, max: 15 }, ], versions: [{ v: "v1 · 提交版本", time: "10-11 20:30", diff: "最终版" }], aiSuggestion: "得分 83 分,机会指标体系部分扣分较多——「需求强度」轴仅用搜索量单一指标,缺少 GMV 估算和短视频播放量这两个 TikTok 特有指标,建议在下次选品报告中做多源交叉验证。", }, { id: "T-1005", title: "Amazon 美国站 · 第 3 章竞品分析基础实训", type: "竞品分析", platform: "Amazon", course: "EC-304", difficulty: 2, due: "10 月 08 日", dueSub: "按时提交", status: "done", weight: 8, score: 94, reviewStatus: "已评阅", progress: 100, chapters: ["6.1 竞品分析入门", "6.2 竞品分析框架"], subtasks: [ { name: "竞品识别(≥ 10 个)", done: true }, { name: "多维度对比表格", done: true }, { name: "SWOT 初级版", done: true }, { name: "2 条可借鉴策略", done: true }, ], scoreBreakdown: [ { item: "竞品识别完整性", score: 19, max: 20 }, { item: "多维度对比", score: 28, max: 30 }, { item: "SWOT 分析", score: 19, max: 20 }, { item: "可借鉴策略提炼", score: 19, max: 20 }, { item: "数据可视化", score: 9, max: 10 }, ], versions: [{ v: "v1 · 提交版本", time: "10-07 21:00", diff: "按时提交" }], aiSuggestion: "得分 94 分,竞品分析基础掌握扎实!数据可视化稍有不足——雷达图标题缺少「数据截止日期」标注,是一个细节规范问题。", }, { id: "T-1004", title: "Shopee 台湾站 · 运动户外类目市场分析", type: "市场分析", platform: "Shopee", course: "EC-305", difficulty: 2, due: "10 月 05 日", dueSub: "按时提交", status: "done", weight: 8, score: 90, reviewStatus: "已评阅", progress: 100, chapters: ["3.2 东南亚市场解读", "3.4 台湾站消费特点"], subtasks: [ { name: "数据采集与市场规模量化", done: true }, { name: "细分市场拆解", done: true }, { name: "需求与痛点洞察", done: true }, { name: "结论与建议", done: true }, ], scoreBreakdown: [ { item: "数据来源完整性", score: 18, max: 20 }, { item: "类目与细分市场界定", score: 14, max: 15 }, { item: "规模与增速量化", score: 22, max: 25 }, { item: "需求与痛点洞察", score: 18, max: 20 }, { item: "结论与可操作建议", score: 18, max: 20 }, ], versions: [{ v: "v1 · 提交版本", time: "10-04 22:00", diff: "按时提交" }], aiSuggestion: "得分 90 分,整体稳定。规模量化部分可进一步提升——台湾站双十一节点数据单独建立对比组,会让增速分析更有说服力。", }, { id: "T-1002", title: "第 1 章 AI 工具介绍 · 工具清单整理作业", type: "报告撰写", platform: undefined, course: "EC-304", difficulty: 1, due: "10 月 03 日", dueSub: "按时提交", status: "done", weight: 5, score: 98, reviewStatus: "已评阅", progress: 100, chapters: ["1.2 AI 辅助工具概述", "1.4 工具清单整理规范"], subtasks: [ { name: "整理 5 款以上 AI 工具的名称与功能", done: true }, { name: "简要说明每款工具的适用场景", done: true }, { name: "按照规范格式输出文档", done: true }, ], scoreBreakdown: [ { item: "结构逻辑", score: 25, max: 25 }, { item: "数据支撑充分", score: 24, max: 25 }, { item: "语言表达", score: 20, max: 20 }, { item: "可视化质量", score: 14, max: 15 }, { item: "结论可操作性", score: 15, max: 15 }, ], versions: [{ v: "v1 · 提交版本", time: "10-02 19:30", diff: "按时提交" }], aiSuggestion: "优秀!得分 98 分,几乎满分。是本课程迄今最高分记录之一,格式规范、逻辑清晰、工具描述精准。保持!", }, { id: "T-1001", title: "跨境电商基础概念 · 课前测验与自我评估", type: "报告撰写", platform: undefined, course: "EC-304", difficulty: 1, due: "10 月 01 日", dueSub: "按时提交", status: "done", weight: 3, score: 92, reviewStatus: "已评阅", progress: 100, chapters: ["0.1 课程导学", "0.2 跨境电商基础概念"], subtasks: [ { name: "完成课前测验(20 题)", done: true }, { name: "提交自我评估表(300 字)", done: true }, ], scoreBreakdown: [ { item: "结构逻辑", score: 23, max: 25 }, { item: "数据支撑充分", score: 23, max: 25 }, { item: "语言表达", score: 18, max: 20 }, { item: "可视化质量", score: 13, max: 15 }, { item: "结论可操作性", score: 15, max: 15 }, ], versions: [{ v: "v1 · 提交版本", time: "09-30 20:00", diff: "按时提交" }], aiSuggestion: "得分 92 分,课前测验成绩优秀,基础概念掌握扎实,是后续高强度实训的良好起点!", }, { id: "T-1046", title: "Amazon 美国站 · 宠物用品 Listing 优化实训", type: "报告撰写", platform: "Amazon", course: "EC-306", difficulty: 3, due: "12 月 10 日", dueSub: "剩余 23 天", status: "inprogress", weight: 10, score: null, reviewStatus: "未评阅", progress: 35, chapters: ["报告撰写规范", "10.2 Listing 优化方法论"], subtasks: [ { name: "完成执行摘要与目录结构", done: true }, { name: "Listing 现状诊断报告(标题/五点/图片)", done: true }, { name: "撰写优化方案(含关键词布局建议)", done: false }, { name: "A+ 内容重构方案", done: false }, { name: "语言专业性检查与格式规范", done: false }, ], versions: [ { v: "v2 · 当前版本", time: "11-20 19:00", diff: "完成 Listing 现状诊断,识别主图点击率偏低原因" }, { v: "v1", time: "11-19 22:00", diff: "初稿:结构框架搭建" }, ], aiSuggestion: "Listing 优化报告须以数据为锚点:用 CTR 与 CVR 的基准值(该类目平均 CTR 约 0.6%)来量化现状差距,优化方案中每条建议须明确「改前→改后」的预期指标变化,报告说服力会提升一个层级。", }, { id: "T-1000", title: "EC-304 课程介绍 · 学习目标与课程规划确认", type: "报告撰写", platform: undefined, course: "EC-304", difficulty: 1, due: "09 月 25 日", dueSub: "按时提交", status: "done", weight: 2, score: 100, reviewStatus: "已评阅", progress: 100, chapters: ["0.0 课程导引"], subtasks: [ { name: "阅读课程大纲并确认学习目标", done: true }, { name: "提交个人课程规划表(100 字)", done: true }, ], scoreBreakdown: [ { item: "结构逻辑", score: 25, max: 25 }, { item: "数据支撑充分", score: 25, max: 25 }, { item: "语言表达", score: 20, max: 20 }, { item: "可视化质量", score: 15, max: 15 }, { item: "结论可操作性", score: 15, max: 15 }, ], versions: [{ v: "v1 · 提交版本", time: "09-24 18:00", diff: "按时提交" }], aiSuggestion: "满分!课程第一个作业完美收官,你的学习规划目标清晰、执行路径明确,是全班最早提交之一。", }, // ── 新增竞赛任务 ──────────────────────────────────────────────────────── { id: "T-9003", title: "2025 亚马逊高校创新大赛 · 华南赛区选拔", type: "竞赛任务", platform: "Amazon", course: "EC-306", difficulty: 5, due: "12 月 20 日", dueSub: "剩余 33 天", status: "contest", weight: 20, score: null, reviewStatus: "-", progress: 5, chapters: ["所有章节", "选读:亚马逊高校大赛赛题汇编"], subtasks: [ { name: "下载并研读大赛评分标准", done: true }, { name: "确定参赛方向:选品赛道与平台", done: false }, { name: "完成目标类目市场分析报告", done: false }, { name: "完成竞品分析与差异化定位报告", done: false }, { name: "制作选品 + 运营方案 PPT(≥ 25 页)", done: false }, { name: "完成 P&L 可行性验证", done: false }, { name: "内部预讲与修改", done: false }, ], versions: [{ v: "v0 · 准备阶段", time: "11-19 10:00", diff: "已确认报名参赛,开始研读赛题材料" }], aiSuggestion: "亚马逊官方大赛评委特别看重「数据真实性」和「P&L 可验证性」,建议选择你最熟悉的类目(如宠物/家居)作为赛道,以便复用已有分析积累。与省赛 T-9002 时间线有冲突,建议先完成校赛 T-9001,再同步推进本赛事。", }, ] // ─── Task type categories ───────────────────────────────────────────────────── const taskTypeCategories: { key: string; label: TaskType | "all"; icon: React.ReactNode }[] = [ { key: "all", label: "all", icon: }, { key: "market", label: "市场分析", icon: }, { key: "opportunity",label: "商品机会", icon: }, { key: "picking", label: "选品实训", icon: }, { key: "competitor", label: "竞品分析", icon: }, { key: "pricing", label: "定价与利润", icon: }, { key: "report", label: "报告撰写", icon: }, { key: "keyword", label: "关键词研究", icon: }, { key: "store", label: "店铺运营", icon: }, { key: "contest", label: "竞赛任务", icon: }, ] function typeLabelFromKey(key: string): TaskType | null { const map: Record = { market: "市场分析", opportunity: "商品机会", picking: "选品实训", competitor: "竞品分析", pricing: "定价与利润", report: "报告撰写", keyword: "关键词研究", store: "店铺运营", contest: "竞赛任务", } return map[key] ?? null } type SortKey = "due" | "weight" | "score" | "progress" | null type SortDir = "asc" | "desc" // ─── Toast helper ─────────────────────────────────────────────────��────────── function useToast() { const [msg, setMsg] = useState(null) const show = useCallback((m: string) => { setMsg(m) setTimeout(() => setMsg(null), 3000) }, []) return { msg, show } } // ─── Type-specific AI draft templates ──────────────────────────────────────── const AI_DRAFT_BY_TYPE: Record = { "市场分析": `【市场分析报告框架 · AI 助教定制版】\n\n① 执行摘要(150 字)— 结论先行:点明目标类目、核心机会与推荐行动\n② 数据来源声明 — 平台 / 工具 / 抓取日期,不低于 3 个来源\n③ 市场规模量化 — GMV 区间 + 近 12 个月搜索量趋势折线图\n④ 细分市场拆解 — 按品类/价格带/用户群做饼图分析\n⑤ 竞争格局扫描 — 品牌集中度 CR5、新卖家入场率\n⑥ 需求与痛点提炼 — 从买家评论/问答中归纳 Top 3 痛点\n⑦ 结论 + 可操作建议 — 至少 2 条带量化目标的跟进行动`, "商品机会": `【商品机会分析框架 · AI 助教定制版】\n\n① 机会三轴评估模型 — 需求强度 × 竞争烈度 × 利润空间坐标系\n② 候选品漏斗 — 从 50+ 初筛到 10 个精选,列明准入门槛条件\n③ Top 5 候选深挖 — 每品做 BSR 位置 / 评分分布 / 月销量估算\n④ 差异化切入方向 — 针对竞品评论差评点,提出 3 条可落地方案\n⑤ 合规与风险矩阵 — CE/FCC/UL/季节性/专利侵权逐一核查\n⑥ 优先级排序 — 综合评分表 + 最终 TOP 1 推荐理由`, "选品实训": `【选品实训报告框架 · AI 助教定制版】\n\n① 关键词聚类(3 个意图簇)— 核心词 / 长尾词 / 场景词各 ≥ 15 个\n② BSR Top 20 深度解析 — 卖点提炼 + 评分分布热力图\n③ 选品候选池(≥ 10 个)— 每品含 ASIN / 月销 / 评分 / 价格 / 毛利估算\n④ 盈利 P&L 测算 — 产品成本 / 头程 / FBA / 平台费 / 广告费逐行拆解\n⑤ 选品结论报告(≥ 800 字)— 最终推荐品 + 差异化方案 + 首批测款计划\n⑥ 附录 — 关键词趋势截图 + 机会雷达图`, "竞品分析": `【竞品分析报告框架 · AI 助教定制版】\n\n① 竞品识别 — 直接竞品 ≥ 10 个 + 间接竞品 ≥ 5 个,附筛选逻辑\n② 多维度对比矩阵 — 价格带 / 评分分布 / Listing 质量 / 物流方式 / 广告曝光\n③ SWOT 矩阵 — 以我方视角填写,数据支撑每个象限\n④ 核心竞品深挖(Top 3)— 买家评论情感分析 + 差评词云\n⑤ 可借鉴策略提炼 — ≥ 3 条直接可执行的对标操作\n⑥ 可视化 — 雷达图 + 气泡定位图(价格 × 评分 × 月销)`, "定价与利润": `【定价与利润报告框架 · AI 助教定制版】\n\n① 完整成本结构拆解 — 产品成本 / 包装 / 头程 / FBA / 平台佣金 / 退货 / 广告,每行到位\n② 竞品价格带分析 — 价格区间分布直方图 + 价格战触发线识别\n③ 价格弹性测算模型 — 建立 Excel 弹性系数表,预测 ±10%/±20% 的利润变化\n④ 动态定价规则设计 — 大促前后 / 旺季 / 清库存三类触发场景各写具体规则\n⑤ 毛利 & ROI 报表 — 多方案对比(保守 / 基准 / 乐观),含月利润估算\n⑥ 最优定价建议 — 给出具体售价区间 + 触发条件量化描述`, "报告撰写": `【报告撰写框架 · AI 助教定制版】\n\n① 封面 + 执行摘要(200 字)— 结论先行,3 句话点明核心发现\n② 目录 + 章节逻辑检查 — 确认各章节之间有明确过渡句\n③ 数据可视化清单 — 每个论点对应一张图表,列清图表类型与数据来源\n④ 语言专业性检查 — 避免口语化,替换主观形容词为数据描述\n⑤ 结论与建议 — 每条建议带具体执行步骤与可衡量目标\n⑥ 格式规范 — 字体统一 / 配色一致 / 页码完整 / 来源引用`, "竞赛任务": `【竞赛备赛框架 · AI 助教定制版】\n\n① 赛题精读 — 拆解评分维度权重,识别核心考察点与隐性要求\n② 差异化破题 — 选取与众不同的切入角度,避免千篇一律的市场分析套路\n③ 数据采集计划 — 列出 5+ 数据来源,建立原始数据库\n④ 分析框架创新 — 组合 2 种以上分析方法(如 PESTLE + 波特五力)\n⑤ 核心��察提炼 — 找到 1-2 个"反直觉"或"高价值"的商业洞察\n⑥ 答辩 PPT 大纲(≥ 20 页)— 封面 / 摘要 / 分析 / 结论 / Q&A 备问库`, "关键词研究": `【关键词研究报告框架 · AI 助教定制版】\n\n① 核心词库构建(≥ 50 词)— 使用 Helium10 / JS / 亚马逊自动补全三源交叉\n② 长尾词扩展至 200 词 — 场景词 / 竞品词 / 问题词各维度覆盖\n③ 搜索意图分类标注 — 购买意图 / 信息意图 / 导航意图三类,附判断逻辑\n④ 竞争难度量化 — 每词标注搜索量 / 竞争指数 / 机会值,建立 ABC 分级\n⑤ 关键词策略规划 — A 级词主攻 / B 级词测试 / C 级词长尾布局,含 PPC 与 SEO 分工\n⑥ 旺季趋势分析 — 识别核心词的季节性高峰,规划投入节点`, "店铺运营": `【店铺运营诊断报告框架 · AI 助教定制版】\n\n① 店铺健康度 KPI 诊断 — ODR / LR / VTR / 晚发率逐一与平台基准对比\n② 流量结构拆解 — 自然搜索 / 广告 / 站外 / 品牌搜索占比趋势图\n③ 转化漏斗各环节分析 — 曝光 → 点击 → 加购 → 购买,找出最大流失环节\n④ Listing 优化建议 — 标题 / 五点 / 图片 / A+ 内容逐项评分与改进点\n⑤ 广告结构优化 — ACOS / ROAS 现状 + 预算分配建议\n⑥ 增长行动计划 — 3 条带 KPI 的具体行动,含责任人与完成时间`, } // ─── Countdown hook (for today-deadline tasks) ─────────────────────────────── function useCountdown(dueStr: string): string { const [display, setDisplay] = useState("") useEffect(() => { const isToday = dueStr.includes("今日") if (!isToday) return // Assume due is today at 23:59:59 const tick = () => { const now = new Date() const end = new Date(now) end.setHours(23, 59, 59, 0) const diff = Math.max(0, end.getTime() - now.getTime()) const h = Math.floor(diff / 3600000) const m = Math.floor((diff % 3600000) / 60000) const s = Math.floor((diff % 60000) / 1000) const urgent = h < 2 setDisplay(urgent ? `剩余 ${h}h ${String(m).padStart(2,"0")}m ${String(s).padStart(2,"0")}s` : `剩余 ${h} 小时 ${m} 分`) } tick() const id = setInterval(tick, 1000) return () => clearInterval(id) }, [dueStr]) return display } // ─── AI mock-review simulation hook ───────────────────────────────────────── type ReviewPhase = "idle" | "uploading" | "reading" | "scoring" | "done" const REVIEW_PHASES: { phase: ReviewPhase; label: string; ms: number }[] = [ { phase: "uploading", label: "正在上传报告文件…", ms: 1200 }, { phase: "reading", label: "AI 正在读取文档内容…", ms: 2000 }, { phase: "scoring", label: "AI 逐维度打分中…", ms: 2800 }, { phase: "done", label: "AI 初评完成,预评结果已生成", ms: 0 }, ] // Score range keyed by difficulty (1-5): [min, range] const PRESCORE_RANGE: Record = { 1: [85, 12], // 85-96 — 入门任务完成度通常较高 2: [80, 12], // 80-91 3: [75, 13], // 75-87 4: [70, 14], // 70-83 5: [65, 15], // 65-79 — 竞赛/高难度任务评分严格 } function useReviewSim() { const [phase, setPhase] = useState("idle") const [preScore, setPreScore] = useState(null) // Deduction details: one rubric item that lost points most const [deductItem, setDeductItem] = useState(null) const start = useCallback((difficulty: number, rubricItems: string[]) => { setPhase("uploading") const [base, range] = PRESCORE_RANGE[difficulty] ?? [72, 18] let delay = 0 REVIEW_PHASES.forEach(({ phase: p, ms }) => { delay += ms === 0 ? 0 : ms if (ms === 0) { setTimeout(() => { setPhase(p) setPreScore(base + Math.floor(Math.random() * range)) // Pick the rubric item with highest weight (last one tends to be hardest) as the deduction target const weakIdx = Math.floor(Math.random() * Math.min(rubricItems.length, 3)) + Math.max(0, rubricItems.length - 3) setDeductItem(rubricItems[weakIdx] ?? rubricItems[rubricItems.length - 1]) }, delay) } else { setTimeout(() => setPhase(p), delay) } }) }, []) const reset = useCallback(() => { setPhase("idle"); setPreScore(null); setDeductItem(null) }, []) return { phase, preScore, deductItem, start, reset } } // ─── AI draft hook (type-aware) ──────────────────────────────────────────── function useAIDraft(taskType: TaskType) { const [state, setState] = useState<"idle" | "loading" | "done">("idle") const [draft, setDraft] = useState(null) const generate = useCallback(() => { setState("loading") const delay = 1800 + Math.random() * 600 setTimeout(() => { setDraft(AI_DRAFT_BY_TYPE[taskType]) setState("done") }, delay) }, [taskType]) const reset = useCallback(() => { setState("idle"); setDraft(null) }, []) return { state, draft, generate, reset } } // ─── Workspace subtask input configs ───────────────────────────────────────── // Each subtask name maps to a workspace "block" — a structured input the student fills type WorkspaceBlock = | { kind: "textarea"; label: string; placeholder: string; hint?: string } | { kind: "table"; label: string; columns: string[]; rows: number; hint?: string } | { kind: "checklist"; label: string; items: string[]; hint?: string } const WORKSPACE_BY_TYPE: Record = { "市场分析": [ { kind: "textarea", label: "数据来源声明", placeholder: "列明数据来源平台、工具名称、抓取日期…例:\n- Jungle Scout · 2024-11-15 · Amazon US\n- Helium 10 Magnet · 2024-11-14 · 搜索量趋势", hint: "至少 3 个来源" }, { kind: "table", label: "核心指标量化表", columns: ["指标名称","数值","同比增速","数据来源"], rows: 5, hint: "填写 GMV、搜索量、新品率等关键数字" }, { kind: "textarea", label: "需求与痛点洞察", placeholder: "基于买家评论/Q&A归纳 Top 3 核心痛点:\n1. \n2. \n3. ", hint: "每条痛点后附典型评论原文" }, { kind: "textarea", label: "结论与可操作建议", placeholder: "结论(100字以内):\n\n行动建议①:\n行动建议②:", hint: "建议要可量化、有截止时间" }, ], "商品机会": [ { kind: "table", label: "机会三轴评估矩阵", columns: ["候选品","需求强度(1-10)","竞争烈度(1-10)","利润空间(1-10)","综合评分"], rows: 8, hint: "从 50+ 候选中填入 Top 8 进行量化对比" }, { kind: "textarea", label: "差异化切入方向", placeholder: "方向①:\n - 依据:\n - 实现路径:\n\n方向②:\n - 依据:\n - 实现路径:\n\n方向③:", hint: "每个方向需对应竞品评论中的具体差评痛点" }, { kind: "checklist", label: "合规风险核查", items: ["CE 认证(欧洲站)","FCC 认证(美国站)","专利侵权检索","季节性风险评估","运输限制核查(锂电/液体等)"] }, { kind: "textarea", label: "最终推荐与优先级排序", placeholder: "TOP 1 推荐:\n理由①(对应需求强度):\n理由②(对应利润空间):\n理由③(对应差异化可行性):\n\nTOP 2:\nTOP 3:", hint: "TOP1 的 3 条理由必须对应三轴评分中的维度数据" }, { kind: "textarea", label: "风险应对预案", placeholder: "季节性风险:\n 触发情景:\n 应对措施:\n\n侵权/合规风险:\n 识别结果:\n 应对措施:\n\n竞争加剧风险:\n 预警指标:\n 应对措施:", hint: "风险预案是「风险评估」维度得分的关键,不能只列风险不写应对" }, ], "选品实训": [ { kind: "table", label: "关键词聚类分析表", columns: ["意图簇名称","代表词(5个)","月搜索量","竞争指数","机会评级"], rows: 3, hint: "完成 3 个意图簇:核心词簇/长尾词簇/场景词簇" }, { kind: "table", label: "BSR Top 10 候选池", columns: ["ASIN","品名","月销量","评分","价格","毛利估算"], rows: 10, hint: "从 BSR Top 20 中精选 10 个候选" }, { kind: "table", label: "P&L 盈利测算", columns: ["成本项目","金额(¥)","占比(%)","备注"], rows: 8, hint: "逐行拆解:产品成本/头程/FBA/平台费/广告费/退货" }, { kind: "textarea", label: "选品结论报告(≥ 800 字)", placeholder: "一、最终推荐品及依据\n\n二、差异化切入方案\n\n三、首批测款计划\n\n四、风险提示", hint: "字数不足 800 字将影响得分" }, { kind: "checklist", label: "关键词趋势与机会雷达图检查", items: ["已截图关键词近 90 天搜索量趋势折线图","已制作机会雷达图(需求/竞争/利润三维)","雷达图各轴标注数值依据","图表已插入报告对应章节","图表标题与来源注明完整"] }, ], "竞品分析": [ { kind: "table", label: "直接竞品识别表", columns: ["ASIN/链接","品牌","价格","评分","月销量","物流方式"], rows: 10, hint: "直接竞品 ≥ 10 个" }, { kind: "table", label: "多维度对比矩阵", columns: ["竞品","Listing质量","主图评级","广告曝光","售后评价","综合评分"], rows: 5, hint: "选取 Top 5 竞品深度对比" }, { kind: "textarea", label: "SWOT 矩阵分析", placeholder: "S(优势):\n- \n\nW(劣势):\n- \n\nO(机会):\n- \n\nT(威胁):\n- ", hint: "每个象限至少 2 条,需有数据支撑" }, { kind: "textarea", label: "可借鉴竞品策略(≥3条)", placeholder: "策略①:\n 来源竞品:\n 可落地操作:\n\n策略②:\n\n策略③:", hint: "策略要具体、可执行，不要写泛论" }, { kind: "checklist", label: "数据可视化完成度核查", items: ["已制作竞品雷达图(价格/评分/Listing/物流/广告五维)","已制作气泡定位图(价格 × 评分 × 月销量)","两张图均有完整标题、轴标签与数据来源","图表已嵌入报告对应章节","颜色编码区分自身品牌与竞品"] }, ], "定价与利润": [ { kind: "table", label: "完整成本结构拆解", columns: ["成本项目","单件成本(¥)","占比(%)","数据来源"], rows: 8, hint: "必须包含:产品成本/头程/FBA/平台费/广告费/退货损耗" }, { kind: "table", label: "竞品价格带分析", columns: ["价格区间","竞品数量","代表ASIN","平均评分","市场份额估算"], rows: 5, hint: "至少覆盖 3 个价格带区间" }, { kind: "textarea", label: "动态定价规则设计", placeholder: "场景①:大促前 7 天\n 触发条件:\n 调价幅度:\n\n场景②:旺季(11-1月)\n 触发条件:\n 调价幅度:\n\n场景③:清库存\n 触发条件:\n 调价幅度:", hint: "触发条件必须量化,不能写'销量下滑时'" }, { kind: "textarea", label: "毛利 & ROI 结论", placeholder: "保守方案售价:¥ 毛利率:% 月利润估算:¥\n基准方案售价:¥ 毛利率:% 月利润估算:¥\n乐观方案售价:¥ 毛利率:% 月利润估算:¥\n\n最优推荐方案及理由:", hint: "三方案对比是必要的,评委看重多情景分析能力" }, { kind: "checklist", label: "毛利报表完整性自检", items: ["成本结构包含 7 项(产品/包装/头程/FBA/佣金/广告/退货)","三方案售价区间有明确区分(不只改售价)","每个方案的广告费投入比例有差异","月利润估算包含低/中/高三个月销量假设","FBA 费用使用亚马逊 FBA 计算器真实报价","报表附有数据来源说明"] }, ], "报告撰写": [ { kind: "textarea", label: "执行摘要(≤200字)", placeholder: "本报告聚焦于……\n核心发现：……\n主要建议：……", hint: "执行摘要须独立可读,不依赖正文" }, { kind: "checklist", label: "报告自检清单", items: ["有封面页与目录","所有论点有数据支撑","图表均有标题与来源","语言无口语化表达","结论每条有可量化目标","字数达到要求"] }, { kind: "textarea", label: "结论与建议", placeholder: "结论①:\n 数据支撑:\n 行动建议:\n 目标指标:\n\n结论②:\n 数据支撑:\n 行动建议:\n 目标指标:", hint: "建议须可衡量，避免'提升销量'等模糊表述" }, ], "竞赛任务": [ { kind: "textarea", label: "赛题精读与维度拆解", placeholder: "赛题核心考察点:\n1.\n2.\n3.\n\n评分维度权重分析:\n\n本队差异化破题角度:", hint: "读懂评分维度是竞赛制胜的第一步" }, { kind: "table", label: "分工与里程碑计划", columns: ["任务模块","负责人","完成节点","交付物"], rows: 6, hint: "明确分工减少重复劳动" }, { kind: "textarea", label: "核心洞察(答辩点睛之笔)", placeholder: "洞察①(反直觉/高价值):\n 数据依据:\n 商业意义:\n\n洞察②:", hint: "1-2 个深度洞察比 10 个浅层结论更能打动评委" }, { kind: "checklist", label: "答辩 PPT 完成度检查", items: ["封面(含赛事名称/队名/日期)","执行摘要��","市场分析部分(3-5页)","竞品与机会分析(3-5页)","商业方案与财务预测(3-5页)","结论与风险(2页)","备问库(Q&A准备 ≥ 10 问)"] }, { kind: "textarea", label: "主体分析内容大纲(≥ 5000 字)", placeholder: "第一章市场机会与选品逻辑\n 1.1 ...\n 1.2 ...\n\n第二章竞品格局与差异化策略\n\n第三章选品与 P&L 验证\n\n第四章运营方案与增长路径\n\n第五章风险分析与应对", hint: "先建框架再填内容,字数不足 5000 字是竞赛常见扣分项" }, { kind: "checklist", label: "内部预讲与修改检查", items: ["完成至少 1 次全流程内部预讲","记录评委模拟提问并准备回答","PPT 视觉一致性检查(配色/字体/图表)","数据来源与引用全部核实","每张 PPT 的「金句/结论」明确标出","时间控制:正式讲解 ≤ 8 分钟"] }, ], "关键词研究": [ { kind: "table", label: "核心词库(前20词)", columns: ["关键词","月搜索量","竞争指数","机会值","搜索意图"], rows: 20, hint: "完整词库须 ≥ 200 词，此处填写 Top 20 作为摘要" }, { kind: "textarea", label: "搜索意图分类说明", placeholder: "购买意图词(示例):\n- '宠物饮水机推荐' → 购买决策阶段\n\n信息意图词(示例):\n- '宠物饮水机怎么用' → 用户教育阶段\n\n导航意图词(示例):", hint: "意图分类影响广告匹配策略" }, { kind: "textarea", label: "关键词策略规划", placeholder: "A级词(主攻):\n 投放方式:\n 出价策略:\n\nB级词(测试):\n 投放方式:\n\nC级词(长尾布局):", hint: "A/B/C 分级是 PPC 预算分配的依据" }, ], "店铺运营": [ { kind: "table", label: "店铺健康度 KPI 诊断", columns: ["指标","当前值","平台基准","状态(达标/预警/危险)","改进建议"], rows: 6, hint: "必填:ODR/LR/VTR/晚发率/退款率/评分" }, { kind: "textarea", label: "转化漏斗流失原因分析", placeholder: "曝光→点击流失率:_%\n 主要原因:\n 优化方向:\n\n点击→加购流失率:_%\n 主要原因:\n 优化方��:\n\n加购→购买流失率:_%\n 主要原因:\n 优化方向:", hint: "找到最大流失环节是提升转化的关键" }, { kind: "textarea", label: "增长行动计划(3条带KPI)", placeholder: "行动①:\n 目标KPI:\n 截止时间:\n 负责方:\n\n行动②:\n\n行动③:", hint: "KPI 须可衡量,如'CTR 提升至 0.8%'" }, ], } // Per-subtask workspace AI hints (indexed by subtask position 0-based) const WORKSPACE_HINTS_BY_TYPE: Record = { "市场分析": [ "至少引用 3 个来源(Jungle Scout / Helium 10 / 平台官方数据),注明工具名称与抓取日期,否则「数据来源完整性」维度最高扣 10 分。", "GMV 和搜索量是两个不同指标,须分别填写。同比增速建议用百分比(如 +32% YoY),而非描述性语言,评阅老师优先看数字。", "痛点洞察建议直接引用买家评论原文(1-2 句),再提炼归纳,比纯总结更有说服力,可提高「需求与痛点洞察」维度得分。", "建议每条行动建议都带 KPI 目标(如「30 天内完成 50 个候选品初筛」),含时限的建议比泛泛而谈多得 3-5 分。", ], "商品机会": [ "三轴评分要量化(1-10 分制),不能只写「高/中/低」。评分依据要写在备注列或 footnote 中,否则评阅时无法验证。", "差异化方向的「实现路径」要具体到操作层(如「在主图中增加防水等级标识」),不能写「提高产品质量」这类泛论。", "合规核查栏必须全部打勾或注明「不适用」+理由,空白项会被评阅老师直接标记为「遗漏扣分」。", "TOP1 推荐要写 3 条具体选择理由,且每条理由都要对应三轴评分中的一个维度数据,形成闭环论证。", "风险应对预案中的「预警指标」要量化(如「当 CR3 从 45% 升至 60% 时视为竞争加剧」),不能只写「市场竞争加剧」。预案是「风险评估」维度(权重 15%)的核心评分依据,空白直接失分。", ], "选品实训": [ "三个意图簇分别命名:「核心购买词簇」「场景使用词簇」「长尾比较词簇」。每簇 ≥ 5 个词,月搜索量填实际数值(可用 Helium 10 导出)。", "BSR Top 10 候选池中「月销量」可用工具估算(JS Extension 或 Helium 10 Xray),不能填「未知」。毛利估算至少精确到个位(¥)。", "P&L 表每行必须有「数据来源」,FBA 费用可去亚马逊 FBA 计算器查实际报价。只填数字不写来源的 P&L 通常得低分。", "结论报告字数目标 ≥ 800 字,右下角实时显示,达到目标后变绿。推荐结构:① 最终推荐品(写明 ASIN/月销估算/评分均值) → ② 差异化切入点(直接指出 CR3 竞品评论的具体痛点并说明如何规避) → ③ 首批测款计划(SKU 数/备货量区间/定价策略) → ④ 风险提示(合规核查结果/季节性高峰/资金占用测算)。每部分引用前三步真实数据,结论须与 P&L 测算的毛利区间形成闭环。", "雷达图必须是三维(需求强度/竞争烈度/利润空间),轴刻度 1-10 并注明各轴数据来源。趋势折线图须覆盖近 90 天,横轴为日期,纵轴为搜索量。两张图都是「数据可视化」维度的主要评分依据。", ], "竞品分析": [ "直接竞品的「物流方式」列填 FBA/FBM/FBT 等具体缩写,不要填「快递」。覆盖 ≥ 10 个才算完整(评分标准明确要求)。", "Top 5 竞品对比矩阵中「Listing 质量」可用 Listing 质量评分工具量化(1-10 分),比��观描述更有��服力。", "SWOT 每个象限 ≥ 2 条,且 W/T 象限的内容不能与 S/O 矛盾。建议先填数据再写 SWOT,避免先验偏见。", "策略要写「来源竞品 ASIN」和「可落地操作」,如「参考 B07XX 的 A+ 页面视频布局,添加同类场景视频」,而非「做好 A+ 内容」。", "雷达图和气泡图是「数据可视化」维度(权重 10%)唯二的评分依据。雷达图五维:价格/评分/Listing 质量/物流/广告曝光;气泡图三轴:X=价格,Y=评分,气泡大小=月销量估算。缺任何一张直接失去该维度大部分分数。", ], "定价与利润": [ "成本结构须包含:产品成本/内箱外箱/头程运费/FBA 费/平台佣金/广告费/退货损耗率共 7 项。缺任何一项该维度最多得 80%。", "价格带分析至少覆盖低/中/高 3 个区间,每区间写「竞品数量」和「市场份额估算」。份额可用评论数比例替代月销量估算。", "动态定价触发条件必须量化:不能写「销量下滑时」,要写「连续 7 天日均销量低于 X 件时」,这是该维度高分的核心要求。", "三方案(保守/基准/乐观)的差异要体现在售价区间和广告费投入上,不能只改售价。毛利率建议保留 2 位小数。", "毛利报表自检是提交前最后一道防线。「FBA 费用使用真实报价」一项最常被忽视,直接估算的数字在批阅时会被标注为「数据来源不可靠」,影响「成本结构拆解」维度得分(权重 25%)。", ], "报告撰写": [ "执行摘要须「独立可读」:读者只看摘要就能知道核心结论和主要建议。不能写「详见正文」,这是最常见扣分原因。", "自检清单每一项未达标都会影响对应评分维度,建议全部勾选后再进入提交流程。「字数达到要求」由字数计数器自动判断。", "每条建议必须写「可量化目标」,如「将 CTR 从 0.6% 提升至 0.9%,目标时间 30 天内」。「提升销量」等表述不得分。", ], "竞赛任务": [ "赛题维度拆解要写「评分权重」,权重最高的维度优先投入时间。历届经验:「洞察力」维度评委差异化打分最大,是拉开分差的关键。", "分工表要明确「交付物」(不是「负责」而是「提交什么文件/产出」),否则内部协作容易出现断层。里程碑节点建议倒排(从截止日往前推)。", "核心洞察要「反直觉」或「高价值」:不要写「该类目市场大」,要写「该类目 CR5 仅 18%,低于行业均值 12 个百分点,表明头部效应弱、新进入者机会窗口存在」。", "答辩 PPT 「备问库」是最容易被忽视的高分项。历届评委问题集中在:数据来源真实性、财务测算假设、竞争壁垒、风险应对,建议各准备 2-3 个回答。", "主体分析 ≥ 5000 字是多数赛事的硬性要求。建议「先骨架后填充」:用章节标题先把逻辑链拉通,再逐节填写内容。字数实时显示在输入框下方,达到 5000 字后颜色变绿。", "内部预讲的核心价值是「暴露逻辑漏洞」,而不是走流程。记录下同学的每一个「为什么」问题,这些就是评委可能追问的方向。PPT 时间控制 ≤ 8 分钟是大多数竞赛的标准,超时会影响评委体验评分。", ], "关键词研究": [ "Top 20 词摘要表是整个词库的「名片」,月搜索量和机会值要用真实工具数据,不能估算。完整词库(≥200词)须作为附件。", "意图分类的判断逻辑要写明(如「含'推荐''哪款''哪个'的词判定为购买意图」),没有判断逻辑的分类不得「搜索意图分类」维度满分。", "A级词出价策略建议写「精确匹配 + 自动匹配(低竞价)」组合,B级词写「词组匹配+否定词」,策略越具体评分越高。", ], "店铺运营": [ "KPI 诊断表中「状态」列必须根据平台基准判断(如亚马逊 ODR 基准 ≤ 1%),不能写「正常」等主观描述,要写「达标」或「预警(超基准 X%)」。", "转化漏斗每个环节的「优化方向」要对应具体的 Listing 元素(如「加购→购买流失高 → 检查是否缺少 Q&A 和对比图」),不能写泛论。", "增长行动 KPI 要写「当前值→目标值」的格式,如「CTR: 0.5% → 0.8%(+60%)」,并说明达成路径(优化主图+标题)。", ], } // Word count threshold for specific subtasks that have minimum word requirements const WORD_COUNT_THRESHOLD: Partial>> = { "选品实训": { 3: 800 }, // subtask index 3: 选品结论报告 ≥ 800 字 "报告撰写": { 0: 200 }, // subtask index 0: 执行摘要 ≥ 200 字 "竞赛任务": { 2: 200, 4: 5000 }, // subtask index 2: 核心洞察 ≥ 200 字; index 4: 主体分析 ≥ 5000 字 "市场分析": { 2: 100 }, // subtask index 2: 痛点洞察 ≥ 100 字 "竞品分析": { 2: 150, 3: 150 }, // SWOT ≥ 150 字; 策略 ≥ 150 字 "定价与利润": { 2: 120, 3: 80 }, // 动态定价规则 ≥ 120 字; 毛利结论 ≥ 80 字 } // ─── Snippet quick-insert templates (per type × subtask position) ────────────── // Short sentence starters the student can click to append to the textarea const SNIPPETS_BY_TYPE: Partial> = { "市场分析": [ ["数据来源:Jungle Scout,抓取日期:", "数据来源:Helium 10 Magnet,抓取日期:", "数据来源:平台官方数据,URL:"], ["GMV 约 $___M(来源:___)", "近 12 个月搜索量趋势:+__% YoY", "市场增速参考区间:___% ~ ___%"], ["Top 3 痛点:\n①(评论原文:\"___\")\n②\n③", "用户核心诉求:___,占评论总量约___%"], ["建议行动①:在 30 天内___,目标:___", "建议行动②:___,可量化指标:___"], ], "选品实训": [ ["意图簇①:核心购买词 | 代表词:___ | 月搜索量:___", "意图簇②:场景使用词 | 代表词:___", "意图簇③:长尾比较词 | 代表词:___"], ["ASIN:___ | 月销量估:___件 | 评分:___ | 价格:$___ | FBA费:$___", "BSR排名:___ | 近90天趋势:___"], ["产品成本:¥___ | 头程:¥___ | FBA:¥___ | 佣金:¥___ | 广告:¥___ | 毛利率:___%"], ["一、最终推荐品:___(ASIN:___),月销量约___件,评分___,价格带$___\n二、差异化切入点:针对「___」差评(占___%)，采用___方案\n三、首批测款计划:___个SKU,备货___件,定价$___"], ["已截图:近90天搜索量趋势折线图(来源:Helium10)", "已制作机会雷达图:需求强度_/10 · 竞争烈度_/10 · 利润空间_/10"], ], "竞品分析": [ ["ASIN:___ | 品牌:___ | 价格:$___ | 评分:___ | 月销量:___件 | FBA/FBM:___"], ["综合评分算法:Listing质量_×0.3 + 主图评级_×0.2 + 广告曝光_×0.2 + 售后_×0.3"], ["S(优势):___,数据依据:___\nW(劣势):___\nO(机会):___,依据:___\nT(威胁):___"], ["策略①:参考竞品___(ASIN:___)的___,可落地操作:___"], ], "定价与利润": [ ["产品成本:¥___ | 内箱外箱:¥___ | 头程:¥___ | FBA费:¥___ | 平台佣金:¥___ | 广告费:¥___ | 退货率___%"], ["低价带($___~$___):___个竞品 | 中价带:___个 | 高价带:___个"], ["大促前7天:当排名进入类目Top___时,将售价降低___%\n旺季(11-1月):当日均销量超___件时,售价上调___%\n清库存:当库龄超___天时,折扣___% 直至清仓"], ["保守方案:售价$___ 毛利率__% 月利润¥___\n基准方案:售价$___ 毛利率__% 月利润¥___\n乐观方案:售价$___ 毛利率__% 月利润¥___"], ], "关键词研究": [ ["关键词:___ | 月搜索量:___ | 竞争指数:___ | 机会值:___ | 意图:购买型/信息型"], ["购买意图词判断依据:含「推荐/哪款/哪个/性价比」的词\n信息意图词:含「怎么用/攻略/教程」的词"], ["A��词(主攻):精确+��泛匹配,出价$___\nB级词(测试):词组匹配+否定词,出价$___\nC级词(长尾布局):自动匹配低竞价,出价$___"], ], "店铺运营": [ ["ODR:___%(基准≤1%):___ | LR:___%(基准≤2%):___ | VTR:___%(基准≥95%):___"], ["曝光→点击流失:__% | 主因:___ | 优化:优化主图/标题\n点击→加购流失:__% | 主因:___ | 优化:___\n加购→购买流失:__% | 主因:___ | 优化:___"], ["行动①:___,目标KPI:CTR ___% → ___%,截止:___\n行动②:___,目标KPI:___,截止:___\n行动③:___,目标KPI:___,截止:___"], ], } // ─── Example data for one-click fill demo ──────────────────────────────────── // Used by the "示例参考" button in workspace — fills the block with a high-quality sample const EXAMPLE_FILL_BY_TYPE: Partial> = { "市场分析": [ "- Jungle Scout · 2024-11-15 · Amazon US 宠物用品类目\n- Helium 10 Magnet · 2024-11-14 · 搜索量趋势(关键词:smart pet water fountain)\n- Amazon Brand Analytics · 2024-11-13 · 频繁一起购买数据", "", // table, skip "① 噪音过大(占1星差评62%):\"The pump is too loud at night\" — 用户对产品运作噪音敏感,尤其睡眠环境\n② 过滤效果不持久(占差评38%):\"Filter needs replacing every 2 weeks\" — 滤芯寿命短导致复购成本高\n③ 安装复杂(占差评24%):\"Instructions are confusing\" — 说明书不清晰,上手门槛高", "结论:「静音宠物智能饮水机」是 Amazon 美国站近期高增长机会,CR3=47% 低于均值,新入场窗口开放。\n\n行动建议①:在 30 天内完成 Top 5 竞品的差评聚类分析,聚焦「噪音」和「滤芯寿命」两大痛点形成差异化方案,目标差评率控制在 < 3%。\n行动建议②:基于月搜索量 48,000 的核心词「smart pet water fountain」制定 PPC 策略,首月预算 $800,ACOS 目标 < 25%。", ], "选品实训": [ "", // table "", // table "", // table "一、最终推荐品\n推荐 ASIN B09X2R5QJP(「PetSafe Drinkwell 2 Gallon」),月销量约 4,200 件,评分 4.3★,价格带 $29.99–$39.99,FBA 月均费 $6.8。该品 CR3 排名第一,但近 90 天新进入者增加 3 个,竞争有所加剧。\n\n二、差异化切入方案\n核心差异化方向:「超低噪音(<30dB)+ 90天长效滤芯」\n- 市场现有产品噪音普遍在 35-45dB,62% 差评提及噪音问题\n- 采用双层减震泵架设计,噪音降至 ≤30dB\n- 滤芯由行业平均 14 天延长至 90 天(抗菌活性炭改性工艺)\n\n三、首批测款计划\n- SKU 数量:1 个(专注核心需求,避免首批过于分散)\n- 建议备货:300 件(覆盖 45–60 天销售周期,含 FBA 入仓备货期)\n- 定价策略:$34.99(低于 CR1 的 $39.99,高于 CR3 的 $29.99,卡中价带)\n\n四、风险提示\n- 合规:已通过亚马逊 FBA 限制品核查,无锂电池要求\n- 季节性:宠物类目 Q4(10–12月)有礼品季需求,需提前 45 天入仓\n- 资金占用:首批 300 件×产品成本 $8.5 = $2,550,加上头程 $450,总投入约 $3,000", "", // checklist ], "竞品分析": [ "", // table "", // table "S(优势):\n- 技术差异化:噪音控制 ≤30dB,低于市场均值 40dB(来源:实测对比)\n- 滤芯寿命 90 天,是行业平均 14 天的 6 倍\n\nW(劣势):\n- 品牌知名度为零,起步无 Review\n- 首批量小,FBA 头程运费成本偏高\n\nO(机会):\n- 「静音」差评需求未被头部品牌解决(CR1 差评占 62% 为噪音)\n- 宠物智能硬件 2024 Q3 市场规模 +38% YoY\n\nT(威胁):\n- CR1 随时可迭代产品解决噪音问题\n- 滤芯专利风险:需在上市前完成 Freedom to Operate 检索", "策略①:来源竞品 B09X2R5QJP(CR1)的「噪音投诉」痛点\n 可落地操作:在主图第 3 张加入「<30dB 静音认证」对比图标,并在 A+ 页面添加分贝测试视频(30s)\n\n策略②:参考竞品 B08MBZ6LDQ 的「滤芯到期提醒」功能\n 可落地操作:开发 APP 滤芯寿命提醒功能,通过邮件+APP Push 双通道提醒,提升复购率\n\n策略③:来源 Top 3 卖家统一使用的「白色+透明」配色方案\n 可落地操作:推出「黑色哑光」配色版本,瞄准设计感用户细分群体,溢价 $5", "", // checklist ], } // ─── Pre-submission self-check items (per task type) ─────────────────────────── const SUBMIT_SELF_CHECK: Record = { "市场分析": ["数据来源不少于 3 个,均注明工具名称与抓取日期","核心指标(GMV/搜索量)用数值而非描述性语言","需求与痛点引用了真实买家评论原文","行动建议带有可量化的 KPI 目标"], "商品机会": ["机会三轴评分均已量化(1-10分),非「高/中/低」","差异化方向已写明具体实现路径","合规风险核查每项已处理(勾选或注明不适用)","TOP1 推荐有 3 条对应三轴数据的理由"], "选品实训": ["三个意图簇均已命名且各含 ≥5 个词","BSR 候选池月销量已用工具估算(非「未知」)","P&L 每行有数据来源,FBA 费用使用计算器真实报价","选品结论报告字数 ≥ 800 字","雷达图与趋势图均已插入报告"], "竞品分析": ["直接竞品 ≥10 个,物流方式用 FBA/FBM/FBT 缩写","SWOT 每象限 ≥2 条且有数据支撑","策略提炼写明「来源竞品 ASIN」和「可落地操作」","雷达图与气泡图均已制作并插入"], "定价与利润": ["成本结构含 7 项(含退货损耗率)","三方案(保守/基准/乐观)售价区间有明确区分","动态定价触发条件已量化(非「销量下滑时」)","毛利率已保留 2 位小数"], "报告撰写": ["执行摘要独立可读,不含「详见正文」","所有论点有数据支撑","每条建议有可衡量的 KPI 目标","字数达到要求(自检通过)"], "竞赛任务": ["赛题评分维度权重已拆解","核心洞察属于「反直觉/高价值」而非泛泛结论","答辩 PPT ≥20 页且含备问库","主体分析文字 ≥5000 字"], "关键词研究": ["Top 20 摘要表月搜索量和机会值来自真实工具数据","意图分类附有判断逻辑说明","A/B/C 分级策略写明具体出价数字"], "店铺运营": ["KPI 诊断每项写「达标/预警(超基准X%)」而非「正常」","转化漏斗每环节流失原因对应具体 Listing 元素","增长行动 KPI 写「当前值→目标值」格式"], } // Debrief recommendations — what to study/do next after completing each type const DEBRIEF_BY_TYPE: Record = { "市场分析": [{ title: "商品机会分析", desc: "将市场分析结论转化为具体选品机会", link: "/student/tasks?type=opportunity" }, { title: "竞品分析", desc: "深挖目标类目竞争格局", link: "/student/tasks?type=competitor" }], "商品机会": [{ title: "选品实训", desc: "对筛选出的候选品做完整 P&L 测算", link: "/student/tasks?type=picking" }, { title: "定价与利润", desc: "验证候选品的盈利可行性", link: "/student/pricing" }], "选品实训": [{ title: "定价与利润", desc: "基于 P&L 结果做完整定价建模,验证推荐品盈利可行性", link: "/student/pricing" }, { title: "关键词洞察与 Listing 实训", desc: "用推荐品的核心卖点提炼关键词,进入 Listing 写作阶段", link: "/student/tasks?type=keyword" }], "竞品分析": [{ title: "商品机会分析", desc: "结合竞品差距找选品机会", link: "/student/tasks?type=opportunity" }, { title: "店铺运营", desc: "将竞品优势转化为自己的运营策略", link: "/student/tasks?type=store" }], "定价与利润": [{ title: "定价实训工具", desc: "在定价实��模块验证多方案", link: "/student/pricing" }, { title: "店铺运营", desc: "用动态定价规则指导实际运营决策", link: "/student/tasks?type=store" }], "报告撰写": [{ title: "选品实训", desc: "将报告写作规范应用于完整选品报告", link: "/student/tasks?type=picking" }, { title: "案例库 · 优秀报告", desc: "参考高分报告结构与行文规范", link: "/student/cases" }], "竞赛任务": [{ title: "市场分析实训", desc: "补充竞赛所需的数据分析深度", link: "/student/tasks?type=market" }, { title: "案例库 · 竞赛专区", desc: "研究历届竞赛获奖案例", link: "/student/cases" }], "关键词研究": [{ title: "店铺运营实训", desc: "将关键词策略落地为 PPC 广告计划", link: "/student/tasks?type=store" }, { title: "选品实训", desc: "用关键词洞察优化选品方向", link: "/student/tasks?type=picking" }], "店铺运营": [{ title: "定价实训工具", desc: "用运营数据驱动动态定价决策", link: "/student/pricing" }, { title: "竞品分析", desc: "从运营角度重新审视竞品差距", link: "/student/tasks?type=competitor" }], } // ─── Page ────────────────────────────────────────────────────────────────────── export default function TasksPage() { // mutable task list (for subtask toggle) const [tasks, setTasks] = useState(INITIAL_TASKS) const [tab, setTab] = useState("inprogress") const [typeKey, setTypeKey] = useState("all") const [query, setQuery] = useState("") const [selectedId, setSelectedId] = useState("T-1042") const [sortKey, setSortKey] = useState(null) const [sortDir, setSortDir] = useState("desc") // dialog / sheet state const [showRubric, setShowRubric] = useState(false) const [showDelay, setShowDelay] = useState(false) const [showSubmit, setShowSubmit] = useState(false) const [showReview, setShowReview] = useState(false) const [showWork, setShowWork] = useState(false) const [showFilter, setShowFilter] = useState(false) const [showWorkspace, setShowWorkspace] = useState(false) // form state const [delayDays, setDelayDays] = useState("3") const [delayReason, setDelayReason] = useState("") const [submitNote, setSubmitNote] = useState("") // workspace state — flat key-value store, key = `${taskId}-${subtaskIdx}[-row-col|-check-idx]` // Always initialise with empty objects so SSR and client render identically (hydration-safe). // The persisted values are loaded from localStorage only inside useEffect (client-only). const [workspaceData, setWorkspaceData] = useState>({}) const [workspaceTab, setWorkspaceTab] = useState("0") // dynamic table row counts: key = `${taskId}-${subtaskIdx}-rows` const [tableRowCounts, setTableRowCounts] = useState>({}) // last autosave timestamp const [lastSaved, setLastSaved] = useState(null) const saveTimerRef = useRef | null>(null) // Hydration-safe restore: read localStorage only after the component mounts on the client. useEffect(() => { try { const data = localStorage.getItem("ws_data") if (data) setWorkspaceData(JSON.parse(data)) } catch { /* private browsing or corrupt data — silently ignore */ } try { const rows = localStorage.getItem("ws_rows") if (rows) setTableRowCounts(JSON.parse(rows)) } catch { /* private browsing or corrupt data — silently ignore */ } }, []) // eslint-disable-line react-hooks/exhaustive-deps // per-task state const [submitted, setSubmitted] = useState>(new Set()) const [delayApplied, setDelayApplied] = useState>(new Set()) // filter popover const [filterPlatforms, setFilterPlatforms] = useState([]) const [filterDifficulty, setFilterDifficulty] = useState([]) // AI feedback thumbs (per suggestion, per task) const [aiFeedback, setAiFeedback] = useState>({}) // pre-submission self-check state: key = `${taskId}-${checkIdx}` → boolean const [selfCheck, setSelfCheck] = useState>({}) // whether "示例参考" has been shown for the current subtask const [exampleVisible, setExampleVisible] = useState>({}) const toast = useToast() const panelRef = useRef(null) const reviewSim = useReviewSim() const typeLabel = typeLabelFromKey(typeKey) // Re-select first visible item when tab changes useEffect(() => { const visible = tasks.filter(t => tab === "all" || t.status === tab) if (visible.length > 0 && !visible.find(t => t.id === selectedId)) { setSelectedId(visible[0].id) } }, [tab]) // eslint-disable-line react-hooks/exhaustive-deps // Sort helper const handleSort = (key: SortKey) => { if (sortKey === key) setSortDir(d => d === "asc" ? "desc" : "asc") else { setSortKey(key); setSortDir("desc") } } const SortIcon = ({ k }: { k: SortKey }) => { if (sortKey !== k) return return sortDir === "asc" ? : } const filtered = useMemo(() => { let list = tasks.filter((t) => { if (tab !== "all" && t.status !== tab) return false if (typeKey !== "all" && t.type !== typeLabel) return false if (query && !t.title.toLowerCase().includes(query.toLowerCase()) && !t.id.toLowerCase().includes(query.toLowerCase())) return false if (filterPlatforms.length > 0 && (!t.platform || !filterPlatforms.includes(t.platform))) return false if (filterDifficulty.length > 0 && !filterDifficulty.includes(String(t.difficulty))) return false return true }) if (sortKey) { list = [...list].sort((a, b) => { let av = 0, bv = 0 if (sortKey === "weight") { av = a.weight; bv = b.weight } if (sortKey === "score") { av = a.score ?? -1; bv = b.score ?? -1 } if (sortKey === "progress") { av = a.progress; bv = b.progress } return sortDir === "asc" ? av - bv : bv - av }) } return list }, [tasks, tab, typeKey, typeLabel, query, sortKey, sortDir, filterPlatforms, filterDifficulty]) const selected = tasks.find(t => t.id === selectedId) ?? tasks[0] const isSubmittable = selected.status === "inprogress" && selected.progress >= 80 const isOverdue = selected.status === "overdue" // isDone: show completed-state UI for tasks that have been scored (includes contest tasks that have scores) const isDone = selected.status === "done" || (selected.status === "contest" && selected.score !== null) const hasSubmitted = submitted.has(selected.id) const hasDelay = delayApplied.has(selected.id) // toggle subtask done state const toggleSubtask = useCallback((taskId: string, name: string) => { setTasks(prev => prev.map(t => { if (t.id !== taskId) return t const newSubs = (t.subtasks ?? []).map(s => s.name === name ? { ...s, done: !s.done } : s) const done = newSubs.filter(s => s.done).length const total = newSubs.length const newProgress = Math.round((done / total) * 100) return { ...t, subtasks: newSubs, progress: newProgress } })) }, []) const ai = useAIDraft(selected.type) const countdownDisplay = useCountdown(selected.due) // reset ai draft when switching tasks useEffect(() => { ai.reset() }, [selected.id]) // eslint-disable-line react-hooks/exhaustive-deps // debounced autosave to localStorage useEffect(() => { if (saveTimerRef.current) clearTimeout(saveTimerRef.current) saveTimerRef.current = setTimeout(() => { try { localStorage.setItem("ws_data", JSON.stringify(workspaceData)) localStorage.setItem("ws_rows", JSON.stringify(tableRowCounts)) setLastSaved(Date.now()) } catch { /* quota exceeded or private browsing */ } }, 800) return () => { if (saveTimerRef.current) clearTimeout(saveTimerRef.current) } }, [workspaceData, tableRowCounts]) // eslint-disable-line react-hooks/exhaustive-deps // Counts const mainTabs = [ { key: "all", label: "全部任务", count: tasks.length }, { key: "inprogress", label: "进行中", count: tasks.filter(t => t.status === "inprogress").length }, { key: "pending", label: "待提交", count: tasks.filter(t => t.status === "pending").length }, { key: "done", label: "已完成", count: tasks.filter(t => t.status === "done").length }, { key: "overdue", label: "逾期", count: tasks.filter(t => t.status === "overdue").length }, { key: "contest", label: "竞赛", count: tasks.filter(t => t.status === "contest").length }, ] const typeCounts = useMemo(() => { const counts: Record = { all: tasks.length } taskTypeCategories.slice(1).forEach(cat => { const lbl = typeLabelFromKey(cat.key) counts[cat.key] = lbl ? tasks.filter(t => t.type === lbl).length : 0 }) return counts }, [tasks]) const overdueList = tasks.filter(t => t.status === "overdue") const todayDeadline = tasks.filter(t => t.status === "inprogress" && (t.due.includes("今日") || t.dueSub.includes("6 小时"))) const filterCount = filterPlatforms.length + filterDifficulty.length // progress bar color const progressColor = (t: TaskRow) => { if (t.status === "overdue") return "[&>div]:bg-destructive" if (t.status === "done") return "[&>div]:bg-emerald-500" if (t.status === "pending") return "[&>div]:bg-emerald-500" if (t.status === "contest") return "[&>div]:bg-violet-500" return "" } return (

{/* Toast notification */} {toast.msg && (

{toast.msg}

)} t.status==="done").length} / ${tasks.filter(t=>t.status!=="contest").length} 项` }, ]} kpis={[ { label: "进行中", value: tasks.filter(t=>t.status==="inprogress").length, hint: `${todayDeadline.length} 项今日截止`, tone: "flat" }, { label: "待提交", value: tasks.filter(t=>t.status==="pending").length, hint: "AI 初评进行中" }, { label: "逾期", value: overdueList.length, hint: "可申请延期", tone: "down" }, { label: "本学期完成", value: tasks.filter(t=>t.status==="done").length, hint: "+3 环比上周", tone: "up" }, ]} actions={

setQuery(e.target.value)} placeholder="搜索任务编号或标题..." className="h-9 w-56 pl-9 md:w-64" />

{/* Advanced filter popover */}

平台

{["Amazon","Shopee","TikTok","Temu"].map(p => (

setFilterPlatforms(prev => v ? [...prev, p] : prev.filter(x => x !== p) )} /> {p}

))}

难度

{["1","2","3","4","5"].map(d => ( ))}

{filterCount > 0 && ( )}

} /> {/* 逾期警告条 */} {overdueList.length > 0 && (

{overdueList.length} 项任务已逾期

{overdueList.map(t => `「${t.title.slice(0, 14)}…」`).join(" · ")} — 建议立即补交或申请延期

)} {/* 今日实训焦点 */} {todayDeadline.length > 0 && (() => { const focal = todayDeadline[0] const doneCount = (focal.subtasks ?? []).filter(s => s.done).length const totalCount = focal.subtasks?.length ?? 0 const remaining = totalCount - doneCount return (

今日截止 · 优先完成 {countdownDisplay && focal.id === selectedId && ( {countdownDisplay} )}

{focal.title}

{focal.progress}%

{remaining > 0 && ( 还差 {remaining} 步完成 )}

) })()}

{/* ── 左侧类型分类 ─────────────────────────────────────────────── */} 按类型筛选 {taskTypeCategories.map(cat => ( ))} {/* ── 中间任务列表 ──────────────────────────────────────────────── */}

{ setTab(v) }}> {mainTabs.map(t => ( {t.label} {t.count} ))}

{filtered.length === 0 ? (

暂无匹配任务

调整筛选条件或清空搜索关键词

) : ( filtered.map(t => { const meta = statusMeta[t.status] const isSelected = t.id === selectedId return (

{ if (e.key === "Enter" || e.key === " ") { setSelectedId(t.id); panelRef.current?.scrollTo({ top: 0, behavior: "smooth" }) } }} onClick={() => { setSelectedId(t.id); panelRef.current?.scrollTo({ top: 0, behavior: "smooth" }) }} className={`group w-full cursor-pointer rounded-xl border bg-card p-4 text-left transition-all duration-150 hover:border-primary/40 hover:shadow-md ${ isSelected ? "border-primary/60 shadow-sm ring-2 ring-primary/15" : t.due.includes("今日") && t.status === "inprogress" ? "border-amber-500/50 bg-amber-500/3" : "" }`} >

{t.id} {meta.label} {typeIconMap[t.type]}{t.type} {t.platform && ( {t.platform} )} {Array.from({ length: 5 }).map((_, i) => ( ))}

{t.title}

课程 · {t.course} {t.due.includes("今日") ? : } 截止: {t.due} {t.id === selectedId && t.due.includes("今日") && countdownDisplay ? ( · {countdownDisplay} ) : ( · {t.dueSub} )} 权重 {t.weight}% {t.score !== null && 得分 {t.score}/100}

进度 {t.progress}%

{/* inline subtask chips when selected */} {isSelected && t.subtasks && (

{t.subtasks.map(s => ( {s.name} ))}

{/* workspace fill progress summary */} {t.status === "inprogress" && (() => { const blocks = WORKSPACE_BY_TYPE[t.type] ?? [] const filledBlocks = blocks.filter((b, bi) => { const k = `${t.id}-${bi}` if (b.kind === "textarea") return (workspaceData[k] ?? "").trim().length > 10 if (b.kind === "table") return Object.keys(workspaceData).some(key => key.startsWith(`${k}-r`) && (workspaceData[key] ?? "").trim()) if (b.kind === "checklist") return b.items.some((_, ci) => workspaceData[`${k}-check-${ci}`] === "true") return false }) const filledCount = filledBlocks.length const totalBlocks = blocks.length return filledCount > 0 ? (

工作区已填写 {filledCount}/{totalBlocks} 个模块

{blocks.map((b, bi) => { const k = `${t.id}-${bi}` const filled = b.kind === "textarea" ? (workspaceData[k] ?? "").trim().length > 10 : b.kind === "table" ? Object.keys(workspaceData).some(key => key.startsWith(`${k}-r`) && (workspaceData[key] ?? "").trim()) : b.items.some((_, ci) => workspaceData[`${k}-check-${ci}`] === "true") return

})}

) : null })()} {t.status === "inprogress" && (

{t.subtasks.filter(s => s.done).length}/{t.subtasks.length} 步完成 {t.subtasks.filter(s => !s.done).length > 0 && ( · 下一步: {t.subtasks.find(s => !s.done)?.name.slice(0, 16)}{(t.subtasks.find(s => !s.done)?.name.length ?? 0) > 16 ? "…" : ""} )}

)}

) }) )}

{/* ── 右侧任务详情面板 ──────────────────────────────────────────── */}

{selected.id} {statusMeta[selected.status].label} {selected.platform && ( {selected.platform} )} {hasDelay && 延期申请中}

{Array.from({ length: 5 }).map((_, i) => ( ))}

{selected.title} {/* Overdue penalty calculator */} {selected.status === "overdue" && (

任务已逾期

{(() => { // Extract days overdue from dueSub string like "已逾期 4 天" const daysOverdue = parseInt(selected.dueSub.replace(/[^0-9]/g, "")) || 0 const baseMax = 100 const currentMax = Math.max(60, baseMax - daysOverdue * 2) const tomorrowMax = Math.max(60, currentMax - 2) return (

已逾期

{daysOverdue} 天

现在提交上限

{currentMax} 分

再晚 1 天上限

{tomorrowMax} 分

) })()}

每晚 1 天上限分数降低 2 分,最低上限为 60 分。申请延期批准后可恢复部分分数。

)} {/* Contest banner */} {selected.status === "contest" && (

竞赛任务 · 权重最高

本任务权重 {selected.weight}%,占总成绩比例最大,建议优先投入时间

赛事截止

{selected.due}

当前进度

{selected.progress}%

剩余时间

{selected.dueSub.replace("剩余 ","")}

{/* Milestone timeline for contest tasks */} {selected.subtasks && selected.subtasks.length > 0 && (

备赛里程碑

{selected.subtasks.map((s, si) => { const totalSubs = selected.subtasks!.length // Distribute milestones across the remaining days const dayLabel = (() => { const daysLeft = parseInt(selected.dueSub.replace(/[^0-9]/g, "")) || 0 const daysForThisMilestone = Math.round((daysLeft / totalSubs) * (totalSubs - si)) return si === 0 ? "立即" : si === totalSubs - 1 ? "截止前 2 天" : `第 ${Math.round((daysLeft / totalSubs) * si + 1)}-${Math.round((daysLeft / totalSubs) * (si + 1))} 天` })() return (

{s.done ? : si + 1}

{s.name}

{dayLabel}

) })}

)}

建议采用「机会扫描 → 竞品对标 → 定价测算」三段式框架，历届获奖作品均在「方法论创新性」与「洞察力」维度得分最高。

)} {/* KV grid */}

{/* progress bar */}

完成进度 {selected.progress}%

{/* 得分明细 (done) */} {isDone && selected.scoreBreakdown && (

得分明细

{selected.score} /100

{(() => { // Find the item with the largest deduction relative to max const sorted = [...selected.scoreBreakdown].sort( (a, b) => (b.max - b.score) / b.max - (a.max - a.score) / a.max ) const weakestItem = sorted[0]?.item return selected.scoreBreakdown.map(s => { const pct = (s.score / s.max) * 100 const isWeak = s.item === weakestItem && s.score < s.max return (

{s.item} div]:bg-amber-500" : ""}`} /> {s.score}/{s.max}

{isWeak && (

主要扣分项 · 下次优先改进此维度

)}

) }) })()}

)} {/* 复盘闭环 — 已完成任务 */} {isDone && (

AI 复盘总结

{selected.aiSuggestion}

{DEBRIEF_BY_TYPE[selected.type]?.length > 0 && (

推荐下一步

{DEBRIEF_BY_TYPE[selected.type].map(rec => (

{rec.title}

{rec.desc}

))}

)}

)} {/* 子任务 — clickable checkboxes */} {selected.subtasks && (

子任务拆解

{selected.subtasks.filter(s => s.done).length}/{selected.subtasks.length} 完成

!isDone && toggleSubtask(selected.id, s.name)} >
{s.done && }
{s.name} {!isDone && !s.done && ( )}

)} {/* 关联章节 */} {selected.chapters && selected.chapters.length > 0 && (

关联课程章节

点击章节直达对应步骤

{selected.chapters.map((ch, ci) => ( ))}

)} {/* AI 建议 */} {selected.aiSuggestion && (

AI 助教建议

{/* Thumbs feedback */}

{selected.aiSuggestion}

{aiFeedback[selected.id] === "down" && (

感谢反馈。你可以点击下方「生成 AI 报告框架」获取更结构化的指导。

)} {!isDone && (

{/* Predicted score hint based on current progress */} {selected.progress > 0 && selected.progress < 100 && (

按当前完成度，AI 预估得分约 = 80 ? "text-emerald-600 dark:text-emerald-400" : selected.progress >= 50 ? "text-amber-600 dark:text-amber-400" : "text-destructive" }`}> {Math.round( (PRESCORE_RANGE[selected.difficulty]?.[0] ?? 72) * (selected.progress / 100) * 0.7 + (PRESCORE_RANGE[selected.difficulty]?.[0] ?? 72) * 0.3 )} 分 · 完成更多步骤可提升

)}

)} {ai.state === "done" && ai.draft && (

{ai.draft}

)}

)} {/* 操作按钮 */}

{!isDone && !hasSubmitted && (

{(selected.status === "inprogress" || selected.status === "overdue" || selected.status === "contest") && ( )} {(isSubmittable || selected.status === "overdue") && ( )} {selected.status === "pending" && (

{selected.reviewStatus}

{selected.reviewStatus === "AI 初评中" && (

AI 正在逐维度打分中…

{(["uploading","reading","scoring"] as const).map((_, i) => (

))}

{selected.aiSuggestion}

)} {selected.reviewStatus === "待教师批阅" && (

AI 初评已完成

{selected.aiSuggestion}

)}

)} {/* AI mock-review progress */} {hasSubmitted && reviewSim.phase !== "idle" && reviewSim.phase !== "done" && (

{REVIEW_PHASES.find(p => p.phase === reviewSim.phase)?.label}

{(["uploading","reading","scoring"] as ReviewPhase[]).map((p, i) => { const phases = ["uploading","reading","scoring","done"] as ReviewPhase[] const current = phases.indexOf(reviewSim.phase) const done = current > i const active = current === i return (

) })}

)} {hasSubmitted && reviewSim.phase === "done" && reviewSim.preScore !== null && (

AI 初评完成

{reviewSim.preScore}

预估得分 · 教师最终批阅通常在 48 小时内完成,分数可能有调整。

{reviewSim.deductItem && (

主要扣分维度:「{reviewSim.deductItem}」— 描述可以更量化,建议补充具体数据依据后申请复核。

)}

)} {hasSubmitted && reviewSim.phase === "idle" && (

已提交,AI 初评进行中…

)} {isDone && ( )}

{/* 次要操作 */}

{isDone && ( )} {(isOverdue || selected.status === "inprogress") && !hasDelay && ( )} {hasDelay && ( 延期审批中 )}

{/* 版本历史 */} {selected.versions && selected.versions.length > 0 && ( <>

提交版本历史

{selected.versions.map((v, i) => (

{(selected.versions?.length ?? 0) - i}

{i < (selected.versions?.length ?? 0) - 1 && (

)}

{v.v}

{v.time}

{v.diff}

))}

)}

{/* ── 底部任务总览表 ─────────────────────────────────────────────────── */}

任务总览表

全部 {tasks.length} 项实训任务 · 点击表头排序 · 点击行跳转详情

编号任务标题类型课程难度 handleSort("due")} > 截止时间 handleSort("weight")} > 权重状态 handleSort("progress")} > 进度 handleSort("score")} > 得分操作 {tasks.map(t => ( setSelectedId(t.id)} > {t.id}

{t.status === "overdue" && } {t.due.includes("今日") && t.status === "inprogress" && } {t.title}

{typeIconMap[t.type]} {t.type} {t.course} {Array.from({ length: 5 }).map((_, i) => ( ))}

{t.due}

{(t.status === "overdue" || t.due.includes("今日")) && (

{t.dueSub}

)} {t.weight}% {statusMeta[t.status].label} {t.score === null ? (

{t.progress}%

) : ( — )} {t.score !== null ? ( = 90 ? "text-emerald-600 dark:text-emerald-400" : t.score >= 75 ? "" : "text-amber-600"}`}> {t.score} ) : —} ))}

{/* ──────────────────────── Dialogs / Sheets ─────────────────────────── */} {/* 实训工作区 Sheet */}

{selected.title}

{selected.type} · 实训工作区 ·{" "} {lastSaved ? ( 已自动保存 ) : ( 内容自动保存 )}

完成度 {selected.progress}%

{/* Step progress strip */} {selected.subtasks && selected.subtasks.length > 0 && (

{selected.subtasks.map((s, i) => ( {i < selected.subtasks!.length - 1 && (

)} ))}

)}

{/* Workspace overall fill progress */} {selected.subtasks && (() => { const blocks = WORKSPACE_BY_TYPE[selected.type] ?? [] const filled = blocks.filter((b, bi) => { const k = `${selected.id}-${bi}` if (b.kind === "textarea") return (workspaceData[k] ?? "").trim().length > 10 if (b.kind === "table") return Object.keys(workspaceData).some(key => key.startsWith(`${k}-r`) && (workspaceData[key] ?? "").trim()) if (b.kind === "checklist") return b.items.some((_, ci) => workspaceData[`${k}-check-${ci}`] === "true") return false }).length const total = blocks.length const pct = total > 0 ? Math.round((filled / total) * 100) : 0 return total > 0 ? (

工作区填写进度 = 100 ? "text-emerald-600 dark:text-emerald-400" : pct >= 60 ? "text-amber-600 dark:text-amber-400" : ""}`}> {filled}/{total} 模块 ({pct}%)

= 100 ? "bg-emerald-500" : "bg-primary"}`} style={{ width: `${pct}%` }} />

{pct >= 100 && (

全部填完

)}

) : null })()} {/* Subtask tabs */} {selected.subtasks && selected.subtasks.length > 0 && ( {selected.subtasks.map((s, i) => ( {s.done ? : i + 1} {s.name.length > 18 ? s.name.slice(0, 18) + "…" : s.name} ))} {selected.subtasks.map((s, i) => { const blocks = WORKSPACE_BY_TYPE[selected.type] ?? [] const block = blocks[i] ?? blocks[blocks.length - 1] const taskKey = `${selected.id}-${i}` const rowsKey = `${taskKey}-rows` const dynamicRows = tableRowCounts[rowsKey] ?? (block?.kind === "table" ? block.rows : 3) const currentText = workspaceData[taskKey] ?? "" const wordCount = currentText.replace(/\s/g, "").length const minWords = WORD_COUNT_THRESHOLD[selected.type]?.[i] const wordCountMet = minWords != null ? wordCount >= minWords : true const wordCountColor = minWords == null ? "text-muted-foreground" : wordCountMet ? "text-emerald-600 dark:text-emerald-400 font-medium" : "text-amber-600 dark:text-amber-400" const aiHint = WORKSPACE_HINTS_BY_TYPE[selected.type]?.[i] ?? "填写完成后勾选「标记为完成」,进度将自动同步到任务列表。" return ( {/* Subtask header */}

{s.name}

{block?.hint &&

{block.hint}

}

{/* Block content */} {block && ( <> {block.kind === "textarea" && (

{block.label}

{/* Example fill button */} {EXAMPLE_FILL_BY_TYPE[selected.type]?.[i] && ( )}

{/* Example preview panel */} {exampleVisible[`${taskKey}-ex`] && EXAMPLE_FILL_BY_TYPE[selected.type]?.[i] && (

高分示例(仅供参考,请用自己的真实数据)

{EXAMPLE_FILL_BY_TYPE[selected.type]?.[i]}

)}

{ const v = e.target.value; setWorkspaceData(prev => ({ ...prev, [taskKey]: v })) }}
                              />
                              {/* Snippets row */}
                              {SNIPPETS_BY_TYPE[selected.type]?.[i] && (
                                <div className="flex flex-wrap gap-1">
                                  {SNIPPETS_BY_TYPE[selected.type]![i].map((snip, si) => (
                                    <button
                                      key={si}
                                      onClick={() => setWorkspaceData(prev => ({
                                        ...prev,
                                        [taskKey]: (prev[taskKey] ? prev[taskKey] + "\n" : "") + snip
                                      }))}
                                      className="inline-flex items-center gap-1 rounded-full border border-border bg-background px-2 py-0.5 text-[10px] text-muted-foreground hover:border-primary/40 hover:text-primary transition-colors"
                                    >
                                      <PlusCircle className="h-2.5 w-2.5 shrink-0" />
                                      <span className="max-w-[140px] truncate">{snip.split("\n")[0].slice(0, 28)}{snip.split("\n")[0].length > 28 ? "…" : ""}</span>
                                    </button>
                                  ))}
                                </div>
                              )}
                              <div className="flex items-center justify-between">
                                {minWords != null ? (
                                  <span className={`text-[10px] flex items-center gap-1 ${wordCountColor}`}>
                                    {wordCountMet
                                      ? <CheckCircle2 className="h-3 w-3" />
                                      : <span className="opacity-70">目标 {minWords} 字</span>
                                    }
                                    {wordCountMet ? `已达标 (${wordCount} 字)` : ""}
                                  </span>
                                ) : <span />}
                                <span className={`text-[10px] tabular-nums ${wordCountColor}`}>{wordCount} 字</span>
                              </div>
                              {minWords != null && (
                                <div className="h-1.5 rounded-full bg-muted overflow-hidden">
                                  <div
                                    className={`h-full rounded-full transition-all duration-300 ${wordCountMet ? "bg-emerald-500" : "bg-amber-500"}`}
                                    style={{ width: `${Math.min(100, (wordCount / minWords) * 100)}%` }}
                                  />
                                </div>
                              )}
                            </div>
                          )}

{block.kind === "table" && (
                            <div className="space-y-1.5 overflow-x-auto">
                              <div className="flex items-center justify-between">
                                <label className="text-xs font-medium text-muted-foreground">{block.label}</label>
                                <div className="flex items-center gap-2">
                                  {/* Clear table button */}
                                  {Object.keys(workspaceData).some(k => k.startsWith(`${taskKey}-r`) && workspaceData[k].trim()) && (
                                    <button
                                      className="text-[10px] text-muted-foreground hover:text-destructive transition-colors"
                                      onClick={() => {
                                        setWorkspaceData(prev => {
                                          const next = { ...prev }
                                          Object.keys(next).forEach(k => { if (k.startsWith(`${taskKey}-r`)) delete next[k] })
                                          return next
                                        })
                                      }}
                                    >清空</button>
                                  )}
                                  <div className="flex items-center gap-1">
                                    <button
                                      className="flex h-6 w-6 items-center justify-center rounded border border-border text-muted-foreground hover:border-primary/50 hover:text-primary transition-colors"
                                      onClick={() => setTableRowCounts(prev => ({ ...prev, [rowsKey]: Math.max(1, dynamicRows - 1) }))}
                                      title="减少一行"
                                    >
                                      <Minus className="h-3 w-3" />
                                    </button>
                                    <span className="text-[10px] text-muted-foreground tabular-nums w-8 text-center">{dynamicRows} 行</span>
                                    <button
                                      className="flex h-6 w-6 items-center justify-center rounded border border-border text-muted-foreground hover:border-primary/50 hover:text-primary transition-colors"
                                      onClick={() => setTableRowCounts(prev => ({ ...prev, [rowsKey]: Math.min(30, dynamicRows + 1) }))}
                                      title="增加一行"
                                    >
                                      <PlusCircle className="h-3 w-3" />
                                    </button>
                                  </div>
                                </div>
                              </div>
                              <table className="w-full text-xs border-collapse border border-border rounded-lg overflow-hidden">
                                <thead>
                                  <tr className="bg-muted/60">
                                    {block.columns.map(col => (
                                      <th key={col} className="border border-border px-2 py-1.5 text-left font-medium text-muted-foreground whitespace-nowrap">{col}</th>
                                    ))}
                                  </tr>
                                </thead>
                                <tbody>
                                  {Array.from({ length: dynamicRows }).map((_, rowIdx) => (
                                    <tr key={rowIdx} className={`transition-colors ${rowIdx % 2 === 0 ? "" : "bg-muted/20"} hover:bg-primary/5`}>
                                      {block.columns.map((col, colIdx) => {
                                        const cellKey = `${taskKey}-r${rowIdx}-c${colIdx}`
                                        return (
                                          <td key={col} className="border border-border px-0 py-0">
                                            <input
                                              className="w-full bg-transparent px-2 py-1.5 text-xs outline-none focus:bg-primary/5 min-w-[80px]"
                                              placeholder="—"
                                              value={workspaceData[cellKey] ?? ""}
                                              onChange={e => { const v = e.target.value; setWorkspaceData(prev => ({ ...prev, [cellKey]: v })) }}
                                            />
                                          </td>
                                        )
                                      })}
                                    </tr>
                                  ))}
                                </tbody>
                              </table>
                              {/* filled row count indicator */}
                              {(() => {
                                const filledRows = Array.from({ length: dynamicRows }).filter((_, rowIdx) =>
                                  block.columns.some((_, colIdx) => (workspaceData[`${taskKey}-r${rowIdx}-c${colIdx}`] ?? "").trim())
                                ).length
                                return filledRows > 0 ? (
                                  <div className="flex items-center gap-2 text-[10px] text-muted-foreground">
                                    <div className="flex gap-0.5">
                                      {Array.from({ length: dynamicRows }).map((_, rowIdx) => {
                                        const filled = block.columns.some((_, colIdx) => (workspaceData[`${taskKey}-r${rowIdx}-c${colIdx}`] ?? "").trim())
                                        return <div key={rowIdx} className={`h-1 w-2.5 rounded-full ${filled ? "bg-primary" : "bg-muted-foreground/20"}`} />
                                      })}
                                    </div>
                                    <span>已填写 {filledRows}/{dynamicRows} 行 · 可用 +/- 增减行数(最多 30 行)</span>
                                  </div>
                                ) : (
                                  <p className="text-[10px] text-muted-foreground">点击单元格直接输入 · 可用右上角 +/- 按钮增减行数(最多 30 行)</p>
                                )
                              })()}
                              {/* table-targeted snippets */}
                              {SNIPPETS_BY_TYPE[selected.type]?.[i] && (
                                <div className="flex flex-wrap gap-1">
                                  <span className="text-[10px] text-muted-foreground self-center">快捷行模板:</span>
                                  {SNIPPETS_BY_TYPE[selected.type]![i].slice(0, 2).map((snip, si) => (
                                    <button
                                      key={si}
                                      onClick={() => {
                                        // Fill first empty row with the snippet content split by |
                                        const parts = snip.split("|").map(p => p.trim())
                                        const firstEmptyRow = Array.from({ length: dynamicRows }).findIndex((_, rowIdx) =>
                                          !block.columns.some((_, colIdx) => (workspaceData[`${taskKey}-r${rowIdx}-c${colIdx}`] ?? "").trim())
                                        )
                                        if (firstEmptyRow >= 0) {
                                          setWorkspaceData(prev => {
                                            const next = { ...prev }
                                            parts.forEach((p, colIdx) => {
                                              if (colIdx < block.columns.length) next[`${taskKey}-r${firstEmptyRow}-c${colIdx}`] = p
                                            })
                                            return next
                                          })
                                        }
                                      }}
                                      className="inline-flex items-center gap-1 rounded-full border border-border bg-background px-2 py-0.5 text-[10px] text-muted-foreground hover:border-primary/40 hover:text-primary transition-colors"
                                    >
                                      <PlusCircle className="h-2.5 w-2.5 shrink-0" />
                                      <span className="max-w-[120px] truncate">{snip.split("|")[0].slice(0, 20)}{snip.split("|")[0].length > 20 ? "…" : ""}</span>
                                    </button>
                                  ))}
                                </div>
                              )}
                            </div>
                          )}

{block.kind === "checklist" && (
                            <div className="space-y-1.5">
                              <label className="text-xs font-medium text-muted-foreground">{block.label}</label>
                              <div className="space-y-2">
                                {block.items.map((item, itemIdx) => {
                                  const checkKey = `${taskKey}-check-${itemIdx}`
                                  const checked = workspaceData[checkKey] === "true"
                                  return (
                                    <label key={item} className="flex cursor-pointer items-center gap-2.5 rounded-lg border px-3 py-2 hover:bg-muted/40 transition-colors">
                                      <div
                                        className={`flex h-4 w-4 shrink-0 items-center justify-center rounded border-2 transition-colors ${checked ? "border-emerald-500 bg-emerald-500" : "border-muted-foreground/40"}`}
                                        onClick={() => { const nv = checked ? "false" : "true"; setWorkspaceData(prev => ({ ...prev, [checkKey]: nv })) }}
                                      >
                                        {checked && <Check className="h-2.5 w-2.5 text-white" />}
                                      </div>
                                      <span className={`text-sm ${checked ? "text-muted-foreground line-through" : ""}`}>{item}</span>
                                    </label>
                                  )
                                })}
                              </div>
                            </div>
                          )}
                        </>
                      )}

{/* Per-subtask AI hint */}
                      <div className="rounded-xl border border-primary/15 bg-primary/5 px-3 py-2.5 flex items-start gap-2">
                        <Bot className="h-3.5 w-3.5 mt-0.5 text-primary shrink-0" />
                        <p className="text-[11px] leading-relaxed text-muted-foreground">{aiHint}</p>
                      </div>

{/* Navigation buttons */}
                      <div className="flex items-center justify-between pt-2">
                        <Button
                          variant="outline"
                          size="sm"
                          disabled={i === 0}
                          onClick={() => setWorkspaceTab(String(i - 1))}
                        >
                          上一步
                        </Button>
                        <span className="text-[11px] text-muted-foreground">{i + 1} / {selected.subtasks?.length ?? 1}</span>
                        {i < (selected.subtasks?.length ?? 1) - 1 ? (
                          <Button
                            size="sm"
                            onClick={() => setWorkspaceTab(String(i + 1))}
                          >
                            下一步
                          </Button>
                        ) : (
                          <Button
                            size="sm"
                            onClick={() => {
                              setShowWorkspace(false)
                              setShowSubmit(true)
                            }}
                          >
                            <Send className="mr-1.5 h-3.5 w-3.5" />
                            完成并提交
                          </Button>
                        )}
                      </div>
                    </TabsContent>
                  )
                })}
              </Tabs>
            )}
          </div>
        </SheetContent>
      </Sheet>

{/* 评分标准 Dialog */}
      <Dialog open={showRubric} onOpenChange={setShowRubric}>
        <DialogContent className="max-h-[80vh] max-w-2xl overflow-y-auto">
          <DialogHeader>
            <DialogTitle className="flex items-center gap-2 text-base">
              <FileText className="h-4 w-4 text-primary" />
              评分标准 — {selected.type}
            </DialogTitle>
          </DialogHeader>
          <div className="space-y-3">
            <p className="text-xs text-muted-foreground">
              任务「{selected.title.slice(0, 28)}…」适用以下评分维度(共 100 分)
            </p>
            <Table>
              <TableHeader>
                <TableRow>
                  <TableHead>评分维度</TableHead>
                  <TableHead className="w-[60px] text-center">满分</TableHead>
                  <TableHead>评分描述</TableHead>
                </TableRow>
              </TableHeader>
              <TableBody>
                {(rubricMap[selected.type] ?? []).map(r => (
                  <TableRow key={r.item}>
                    <TableCell className="text-sm font-medium">{r.item}</TableCell>
                    <TableCell className="text-center text-sm">{r.weight}</TableCell>
                    <TableCell className="text-xs text-muted-foreground">{r.desc}</TableCell>
                  </TableRow>
                ))}
              </TableBody>
            </Table>
            <div className="rounded-xl bg-muted/50 p-3 text-xs text-muted-foreground">
              <p className="mb-1 font-medium text-foreground">说明</p>
              <ul className="list-inside list-disc space-y-1">
                <li>逾期提交上限分数为 85 分;延期申请批准后上限为 90 分</li>
                <li>AI 初稿不计入原创性扣分,但纯 AI 生成(≥70%)将触发学术诚信审查</li>
                <li>数据来源必须注明平台、抓取日期及工具名称</li>
              </ul>
            </div>
          </div>
          <DialogFooter>
            <Button variant="outline" onClick={() => setShowRubric(false)}>关闭</Button>
            {!isDone && (
              <Button onClick={() => { setShowRubric(false); setShowSubmit(true) }}>
                <Send className="mr-1.5 h-3.5 w-3.5" />准备提交
              </Button>
            )}
          </DialogFooter>
        </DialogContent>
      </Dialog>

{/* 申请延期 Dialog */}
      <Dialog open={showDelay} onOpenChange={setShowDelay}>
        <DialogContent className="max-w-md">
          <DialogHeader>
            <DialogTitle className="flex items-center gap-2 text-base">
              <Clock className="h-4 w-4 text-amber-500" />申请延期提交
            </DialogTitle>
          </DialogHeader>
          <div className="space-y-4 pt-1">
            <div className="rounded-xl bg-muted/50 p-3 text-sm">
              <p className="font-medium">{selected.title}</p>
              <p className="mt-1 text-xs text-muted-foreground">原截止时间: {selected.due} · {selected.dueSub}</p>
            </div>
            <div className="space-y-1.5">
              <label className="text-sm font-medium">申请延期天数</label>
              <Select value={delayDays} onValueChange={setDelayDays}>
                <SelectTrigger className="h-9"><SelectValue /></SelectTrigger>
                <SelectContent>
                  <SelectItem value="1">延期 1 天 — 批准后上限 95 分</SelectItem>
                  <SelectItem value="3">延期 3 天 — 批准后上限 90 分</SelectItem>
                  <SelectItem value="7">延期 7 天 — 批准后上限 80 分</SelectItem>
                </SelectContent>
              </Select>
            </div>
            <div className="space-y-1.5">
              <label className="text-sm font-medium">延期原因说明</label>
              <Textarea
                placeholder="请简述延期原因(建议 50 字以上),提供充分理由有助于审批通过…"
                className="min-h-[80px] text-sm"
                value={delayReason}
                onChange={e => setDelayReason(e.target.value)}
              />
              <p className="text-[11px] text-muted-foreground text-right">{delayReason.trim().length}/10 字(最少)</p>
            </div>
            <p className="text-[11px] text-muted-foreground">申请提交后将由教师在 24 小时内审批。每门课程每位同学最多申请 2 次延期。</p>
          </div>
          <DialogFooter className="gap-2">
            <Button variant="outline" onClick={() => setShowDelay(false)}>取消</Button>
            <Button
              disabled={delayReason.trim().length < 10}
              onClick={() => {
                setDelayApplied(prev => new Set(prev).add(selected.id))
                setDelayReason("")
                setShowDelay(false)
                toast.show(`延期申请已提交,延期 ${delayDays} 天,等待教师审批`)
              }}
            >
              提交申请
            </Button>
          </DialogFooter>
        </DialogContent>
      </Dialog>

{/* 提交报告 Dialog */}
      <Dialog open={showSubmit} onOpenChange={setShowSubmit}>
        <DialogContent className="max-w-md">
          <DialogHeader>
            <DialogTitle className="flex items-center gap-2 text-base">
              <Send className="h-4 w-4 text-primary" />
              {selected.status === "overdue" ? "补交报告" : "提交报告"}
            </DialogTitle>
          </DialogHeader>
          <div className="space-y-4 pt-1">
            <div className="rounded-xl bg-muted/50 p-3 text-sm">
              <p className="font-medium">{selected.title}</p>
              <p className="mt-1 text-xs text-muted-foreground">评分权重 {selected.weight}% · 完成进度 {selected.progress}%</p>
            </div>
            {selected.progress < 100 && (
              <div className="flex items-start gap-2 rounded-xl border border-amber-500/30 bg-amber-500/8 p-3 text-xs text-amber-700 dark:text-amber-400">
                <AlertTriangle className="mt-0.5 h-4 w-4 shrink-0" />
                <span>当前完成度 {selected.progress}%,还有子任务未完成。提交后将进入 AI 初评,评分可能受影响。</span>
              </div>
            )}
            <div className="space-y-1.5">
              <label className="text-sm font-medium">提交说明(可选)</label>
              <Textarea
                placeholder="可补充说明本次提交的完成情况或注意事项…"
                className="min-h-[70px] text-sm"
                value={submitNote}
                onChange={e => setSubmitNote(e.target.value)}
              />
            </div>
            {/* Workspace content summary */}
            {(() => {
              const blocks = WORKSPACE_BY_TYPE[selected.type] ?? []
              const filled = blocks.filter((b, i) => {
                const k = `${selected.id}-${i}`
                if (b.kind === "textarea") return (workspaceData[k] ?? "").trim().length > 0
                if (b.kind === "table") return Object.keys(workspaceData).some(key => key.startsWith(`${k}-r`) && workspaceData[key].trim())
                if (b.kind === "checklist") return b.items.some((_, ci) => workspaceData[`${k}-check-${ci}`] === "true")
                return false
              })
              return filled.length > 0 ? (
                <div className="rounded-xl border border-emerald-500/20 bg-emerald-500/5 p-3 text-xs space-y-1">
                  <p className="font-medium text-emerald-700 dark:text-emerald-400">实训工作区内容摘要</p>
                  {blocks.map((b, i) => {
                    const k = `${selected.id}-${i}`
                    const hasContent = b.kind === "textarea"
                      ? (workspaceData[k] ?? "").trim().length > 0
                      : b.kind === "table"
                        ? Object.keys(workspaceData).some(key => key.startsWith(`${k}-r`) && workspaceData[key].trim())
                        : b.items.some((_, ci) => workspaceData[`${k}-check-${ci}`] === "true")
                    return (
                      <div key={i} className="flex items-center gap-2 text-muted-foreground">
                        <div className={`h-1.5 w-1.5 rounded-full shrink-0 ${hasContent ? "bg-emerald-500" : "bg-muted-foreground/30"}`} />
                        <span className={hasContent ? "" : "opacity-50"}>{b.label}</span>
                        {b.kind === "textarea" && hasContent && (
                          <span className="ml-auto tabular-nums text-[10px]">{(workspaceData[k] ?? "").replace(/\s/g, "").length} 字</span>
                        )}
                      </div>
                    )
                  })}
                </div>
              ) : null
            })()}
            {/* Self-check before submit */}
            {(() => {
              const checks = SUBMIT_SELF_CHECK[selected.type] ?? []
              const allChecked = checks.every((_, ci) => selfCheck[`${selected.id}-sc-${ci}`])
              const checkedCount = checks.filter((_, ci) => selfCheck[`${selected.id}-sc-${ci}`]).length
              return checks.length > 0 ? (
                <div className="rounded-xl border border-border bg-muted/20 p-3 space-y-2">
                  <div className="flex items-center justify-between">
                    <p className="text-xs font-medium">提交前自查清单</p>
                    <span className={`text-[10px] font-medium tabular-nums ${allChecked ? "text-emerald-600 dark:text-emerald-400" : "text-muted-foreground"}`}>
                      {checkedCount}/{checks.length}
                    </span>
                  </div>
                  <div className="space-y-1.5">
                    {checks.map((c, ci) => {
                      const ck = `${selected.id}-sc-${ci}`
                      const checked = selfCheck[ck] ?? false
                      return (
                        <label key={ci} className="flex cursor-pointer items-start gap-2.5 rounded-md px-2 py-1.5 hover:bg-muted/40 transition-colors">
                          <div
                            className={`mt-0.5 flex h-3.5 w-3.5 shrink-0 items-center justify-center rounded border-2 transition-colors ${checked ? "border-emerald-500 bg-emerald-500" : "border-muted-foreground/40"}`}
                            onClick={() => setSelfCheck(prev => ({ ...prev, [ck]: !checked }))}
                          >
                            {checked && <Check className="h-2 w-2 text-white" />}
                          </div>
                          <span className={`text-[11px] leading-relaxed ${checked ? "text-muted-foreground line-through" : ""}`}>{c}</span>
                        </label>
                      )
                    })}
                  </div>
                  {!allChecked && (
                    <p className="text-[10px] text-amber-600 dark:text-amber-400">建议全部勾选后再提交,可有效避免常见扣分项</p>
                  )}
                </div>
              ) : null
            })()}
            <div className="flex items-start gap-2 rounded-xl bg-primary/5 p-3 text-xs text-muted-foreground">
              <Bot className="mt-0.5 h-4 w-4 shrink-0 text-primary" />
              <span>提交后将立即启动 AI 初评(约 3-5 分钟),AI 报告将发送至消息中心,教师批阅通常在 48 小时内完成。</span>
            </div>
          </div>
          <DialogFooter className="gap-2">
            <Button variant="outline" onClick={() => setShowSubmit(false)}>取消</Button>
            <Button onClick={() => {
              setSubmitted(prev => new Set(prev).add(selected.id))
              reviewSim.start(selected.difficulty, (rubricMap[selected.type] ?? []).map(r => r.item))
              setSubmitNote("")
              setShowSubmit(false)
              toast.show("报告已提交!AI 初评已启动")
            }}>
              <Send className="mr-1.5 h-3.5 w-3.5" />确认提交
            </Button>
          </DialogFooter>
        </DialogContent>
      </Dialog>

{/* 申请复核 Sheet */}
      <Sheet open={showReview} onOpenChange={setShowReview}>
        <SheetContent className="w-full max-w-md overflow-y-auto">
          <SheetHeader>
            <SheetTitle className="flex items-center gap-2">
              <History className="h-4 w-4 text-primary" />申请成绩复核
            </SheetTitle>
          </SheetHeader>
          <div className="mt-5 space-y-4">
            <div className="rounded-xl bg-muted/50 p-3 text-sm">
              <p className="font-medium">{selected.title}</p>
              <p className="mt-1 text-xs text-muted-foreground">
                当前得分: <span className="font-semibold text-foreground">{selected.score}/100</span> · 评阅状态: {selected.reviewStatus}
              </p>
            </div>
            {selected.scoreBreakdown && (
              <div>
                <p className="mb-2 text-sm font-medium">各维度得分明细</p>
                <div className="space-y-2">
                  {selected.scoreBreakdown.map(s => (
                    <div key={s.item} className="flex items-center justify-between rounded-lg bg-muted/40 px-3 py-2 text-sm">
                      <span className="text-muted-foreground">{s.item}</span>
                      <span className="font-medium">{s.score}<span className="text-xs font-normal text-muted-foreground">/{s.max}</span></span>
                    </div>
                  ))}
                </div>
              </div>
            )}
            <div className="space-y-1.5">
              <label className="text-sm font-medium">复核申请说明</label>
              <Textarea
                placeholder="请说明认为评分有误的维度及理由,并提供相关依据…"
                className="min-h-[100px] text-sm"
              />
            </div>
            <div className="rounded-xl border border-amber-500/30 bg-amber-500/8 p-3 text-xs text-amber-700 dark:text-amber-400">
              <p className="font-medium mb-1">注意事项</p>
              <ul className="list-inside list-disc space-y-1">
                <li>复核申请需在成绩发布后 7 天内提交</li>
                <li>每门课最多申请 1 次复核</li>
                <li>复核结果由教师在 3 个工作日内反馈</li>
              </ul>
            </div>
            <div className="flex gap-2">
              <Button variant="outline" className="flex-1" onClick={() => setShowReview(false)}>取消</Button>
              <Button className="flex-1" onClick={() => {
                setShowReview(false)
                toast.show("复核申请已提交,教师将在 3 个工作日内处理")
              }}>
                提交复核申请
              </Button>
            </div>
          </div>
        </SheetContent>
      </Sheet>

{/* 查看已提交作业 Sheet */}
      <Sheet open={showWork} onOpenChange={setShowWork}>
        <SheetContent className="w-full max-w-lg overflow-y-auto">
          <SheetHeader>
            <SheetTitle className="flex items-center gap-2">
              <FileText className="h-4 w-4 text-primary" />已提交作业详情
            </SheetTitle>
          </SheetHeader>
          <div className="mt-5 space-y-4">
            <div className="rounded-xl bg-muted/50 p-3">
              <p className="text-sm font-medium">{selected.title}</p>
              <div className="mt-2 grid grid-cols-2 gap-2 text-xs text-muted-foreground">
                <span>课程: {selected.course}</span>
                <span>得分: <span className="font-semibold text-foreground">{selected.score}/100</span></span>
                <span>提交版本: {selected.versions?.[0]?.v}</span>
                <span>提交时间: {selected.versions?.[0]?.time}</span>
              </div>
            </div>
            <div>
              <p className="mb-2 text-sm font-medium">提交版本历史</p>
              <div className="space-y-2">
                {selected.versions?.map((v, i) => (
                  <div key={v.v} className="flex items-start gap-3 rounded-lg border p-3 text-xs">
                    <div className={`flex h-6 w-6 shrink-0 items-center justify-center rounded-full text-[10px] font-bold ${i === 0 ? "bg-primary text-primary-foreground" : "bg-muted"}`}>
                      {(selected.versions?.length ?? 0) - i}
                    </div>
                    <div>
                      <p className="font-medium">{v.v} <span className="text-muted-foreground ml-2">{v.time}</span></p>
                      <p className="mt-0.5 text-muted-foreground">{v.diff}</p>
                    </div>
                  </div>
                ))}
              </div>
            </div>
            {selected.scoreBreakdown && (
              <div>
                <p className="mb-2 text-sm font-medium">评分详情</p>
                <div className="space-y-1.5">
                  {selected.scoreBreakdown.map(s => (
                    <div key={s.item} className="flex items-center gap-2 text-xs">
                      <span className="w-28 shrink-0 text-muted-foreground">{s.item}</span>
                      <Progress value={(s.score / s.max) * 100} className="flex-1 h-1.5" />
                      <span className="w-12 text-right tabular-nums">{s.score}/{s.max}</span>
                    </div>
                  ))}
                </div>
              </div>
            )}
            <Button variant="outline" className="w-full" onClick={() => setShowWork(false)}>关闭</Button>
          </div>
        </SheetContent>
      </Sheet>
    </div>
  )
}

I've documented the full workflow: how the workspace drawer opens for each subtask with instructions and code snippets, the textarea validation requiring at least 800 characters for reports, the "标记为完成" button that advances progress and moves to the next subtask, and how completing all subtasks unlocks the "提交报告" button. When submitting, a confirmation dialog appears with a note field and information about the AI review timeline (3-5 minutes) and teacher review (48 hours), then the submission triggers the review simulation and shows a success toast. I did notice what might be a UI bug where the submit button becomes unclickable after scrolling due to overlapping elements, though this could be a false alarm from stale references during hydration.…b3:T38914,[V0_FILE]typescriptreact:file="/app/student/tasks/page.tsx"
"use client"

import React, { useMemo, useState, useCallback, useRef, useEffect } from "react"
import {
  AlertTriangle, ArrowRight, Bot, CalendarClock, CheckCircle2,
  ChevronRight, Clock, ExternalLink, FileText, Filter, History,
  ListChecks, Play, RefreshCw, Search, Send, Sparkles, Star,
  Target, Trophy, X, ClipboardList, BookOpen, BarChart2, Package,
  TrendingUp, ShieldCheck, PenLine, FlaskConical, Megaphone,
  ChevronDown, ChevronUp, ChevronsUpDown, SortAsc, SortDesc,
  Pencil, Check, Loader2, Bell, Flame, Users, Award, Lightbulb,
  ThumbsUp, ThumbsDown, CornerDownRight, GraduationCap, Timer,
  MessageSquare, Layers, PlusCircle, Minus,
} from "lucide-react"
import { Badge } from "@/components/ui/badge"
import { Button } from "@/components/ui/button"
import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card"
import { Input } from "@/components/ui/input"
import { Progress } from "@/components/ui/progress"
import { Tabs, TabsList, TabsTrigger, TabsContent } from "@/components/ui/tabs"
import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from "@/components/ui/table"
import { Separator } from "@/components/ui/separator"
import { StudentPageHeader } from "@/components/student/page-header"
import {
  Dialog, DialogContent, DialogHeader, DialogTitle, DialogFooter,
} from "@/components/ui/dialog"
import { Sheet, SheetContent, SheetHeader, SheetTitle } from "@/components/ui/sheet"
import { Textarea } from "@/components/ui/textarea"
import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select"
import { Popover, PopoverContent, PopoverTrigger } from "@/components/ui/popover"
import { Checkbox } from "@/components/ui/checkbox"
import { Label } from "@/components/ui/label"

const statusMeta: Record<Status, { label: string; tone: string }> = {
  inprogress: { label: "进行中",  tone: "bg-primary/10 text-primary border-primary/20" },
  pending:    { label: "待提交",  tone: "bg-amber-500/15 text-amber-700 border-amber-500/30 dark:text-amber-400" },
  done:       { label: "已完成",  tone: "bg-emerald-500/15 text-emerald-700 border-emerald-500/30 dark:text-emerald-400" },
  overdue:    { label: "逾期",    tone: "bg-destructive/15 text-destructive border-destructive/30" },
  contest:    { label: "竞赛任务", tone: "bg-violet-500/15 text-violet-700 border-violet-500/30 dark:text-violet-400" },
}

const typeIconMap: Record<TaskType, React.ReactNode> = {
  "市场分析":   <BarChart2   className="h-3.5 w-3.5" />,
  "商品机会":   <TrendingUp  className="h-3.5 w-3.5" />,
  "选品实训":   <Package     className="h-3.5 w-3.5" />,
  "竞品分析":   <ShieldCheck className="h-3.5 w-3.5" />,
  "定价与利润": <FlaskConical className="h-3.5 w-3.5" />,
  "报告撰写":   <PenLine     className="h-3.5 w-3.5" />,
  "竞赛任务":   <Trophy      className="h-3.5 w-3.5" />,
  "关键词研究": <Search      className="h-3.5 w-3.5" />,
  "店铺运营":   <Megaphone   className="h-3.5 w-3.5" />,
}

// ─── Rubric ──────────────────────────────────────────────────────────────────
const rubricMap: Record<TaskType, { item: string; weight: number; desc: string }[]> = {
  "市场分析": [
    { item: "数据来源完整性",     weight: 20, desc: "引用不少于 3 个可靠来源,数据时效性在 3 个月以内" },
    { item: "类目与细分市场界定", weight: 15, desc: "准确划定目标类目层级,说明细分逻辑" },
    { item: "规模与增速量化",     weight: 25, desc: "提供市场 GMV/搜索量等核心指标及同比趋势" },
    { item: "需求与痛点洞察",     weight: 20, desc: "结合买家评论、问答数据归纳真实需求" },
    { item: "结论与可操作建议",   weight: 20, desc: "得出明确结论,至少提供 2 条具体跟进行动" },
  ],
  "商品机会": [
    { item: "机会指标体系",   weight: 20, desc: "定义并量化需求强度、竞争烈度、利润空间三轴" },
    { item: "候选品筛选逻辑", weight: 25, desc: "明确准入门槛,从不少于 50 个候选中筛选" },
    { item: "差异化方向",     weight: 25, desc: "识别现有竞品痛点,提出可落地差异化方案" },
    { item: "风险评估",       weight: 15, desc: "评估合规/季节性/侵权等关键风险" },
    { item: "优先级排序",     weight: 15, desc: "对 Top 3 机会给出优先级排序与理由" },
  ],
  "选品实训": [
    { item: "关键词聚类分析", weight: 20, desc: "完成不少于 3 个意图簇,覆盖核心/长尾/场景词" },
    { item: "BSR/畅销品研究", weight: 20, desc: "深度分析 Top 20 BSR 商品的核心卖点与评分分布" },
    { item: "选品候选池构建", weight: 20, desc: "提供 ≥ 10 个候选品及评分依据" },
    { item: "盈利测算",       weight: 20, desc: "完成完整 P&L 预测,含成本/运费/平台费" },
    { item: "选品结论报告",   weight: 20, desc: "结论报告 ≥ 800 字,逻辑清晰,图表完整" },
  ],
  "竞品分析": [
    { item: "竞品识别完整性", weight: 20, desc: "覆盖直接/间接竞品各不少于 5 个" },
    { item: "多维度对比",     weight: 30, desc: "从价格/评分/listing/运营/物流等维度系统比较" },
    { item: "SWOT 分析",      weight: 20, desc: "完成结构化 SWOT 矩阵,有数据支撑" },
    { item: "可借鉴策略提炼", weight: 20, desc: "提炼 3 条以上可直接落地的参考策略" },
    { item: "数据可视化",     weight: 10, desc: "包含雷达图/气泡图等至少 2 种可视化图表" },
  ],
  "定价与利润": [
    { item: "成本结构拆解",   weight: 25, desc: "完整拆解产品成本/头程/FBA/平台费/广告费" },
    { item: "竞争定价分析",   weight: 20, desc: "分析竞品价格带分布及价格战触发线" },
    { item: "弹性测算",       weight: 20, desc: "建立价格弹性模型,预测不同价格点的利润" },
    { item: "动态定价策略",   weight: 20, desc: "设计节日/旺季/清库存等场景下的定价规则" },
    { item: "毛利 & ROI 报表", weight: 15, desc: "输出完整的财务报表,支持多方案对比" },
  ],
  "报告撰写": [
    { item: "结构逻辑",     weight: 25, desc: "报告结构清晰,有执行摘要,各章节过渡自然" },
    { item: "数据支撑充分", weight: 25, desc: "所有论点均有数据/截图/图表支撑" },
    { item: "语言表达",     weight: 20, desc: "语言专业、简洁,避免口语化表达" },
    { item: "可视化质量",   weight: 15, desc: "图表配色一致、标题完整、来源注明" },
    { item: "结论可操作性", weight: 15, desc: "结论直接映射到商业行动,可衡量" },
  ],
  "竞赛任务": [
    { item: "赛题理解深度", weight: 20, desc: "准确识别赛题核心考察点,问题拆解到位" },
    { item: "方法论创新性", weight: 25, desc: "采用差异化分析框架或工具组合" },
    { item: "数据质量",     weight: 20, desc: "数据量充足、来源多元,无明显错误" },
    { item: "结论洞察力",   weight: 20, desc: "洞察具有商业价值,可指导实际决策" },
    { item: "呈现与表达",   weight: 15, desc: "PPT/报告排版专业,演讲/答辩逻辑清晰" },
  ],
  "关键词研究": [
    { item: "词库覆盖度",     weight: 25, desc: "核心词/长尾词/竞品词全面覆盖,总量 ≥ 200 词" },
    { item: "搜索意图分类",   weight: 20, desc: "按购买意图/信息意图/导航意图分类标注" },
    { item: "竞争难度评估",   weight: 20, desc: "使用工具量化每个词的竞争烈度与机会值" },
    { item: "关键词策略规划", weight: 20, desc: "按 A/B/C 优先级制定投放与优化策略" },
    { item: "趋势与季节性分析", weight: 15, desc: "识别词的旺季特征,规划节点投入" },
  ],
  "店铺运营": [
    { item: "店铺健康度诊断", weight: 20, desc: "分析账户指标:ODR/LR/VTR 等是否达标" },
    { item: "流量结构分析",   weight: 20, desc: "拆解自然/广告/站外流量占比及趋势" },
    { item: "转化漏斗优化",   weight: 25, desc: "识别浏览→加购→购买每个环节的流失原因" },
    { item: "运营 SOP 设计",  weight: 20, desc: "输出可执行的日/周运营标准操作流程" },
    { item: "增长方案",       weight: 15, desc: "针对瓶颈提出 3 条带 KPI 的增长行动" },
  ],
}

// ─── Task data ────────────────────────────────────────────────────────────────
type TaskRow = {
  id: string; title: string; type: TaskType; course: string
  difficulty: 1|2|3|4|5; due: string; dueSub: string; status: Status
  weight: number; score: number | null
  scoreBreakdown?: { item: string; score: number; max: number }[]
  reviewStatus: "未评阅"|"AI 初评中"|"待教师批阅"|"已评阅"|"-"
  progress: number; chapters?: string[]
  subtasks?: { name: string; done: boolean }[]
  versions?: { v: string; time: string; diff: string }[]
  aiSuggestion?: string; platform?: string
}

const INITIAL_TASKS: TaskRow[] = [
  // ── 进行中 ───────────────────────────────────────────────────────────────
  {
    id: "T-1042", title: "Amazon 美国站 · 宠物智能饮水机选品分析",
    type: "选品实训", platform: "Amazon", course: "EC-304", difficulty: 4,
    due: "今日 23:59", dueSub: "剩余 6 小时 12 分", status: "inprogress",
    weight: 15, score: null, reviewStatus: "未评阅", progress: 70,
    chapters: ["4.1 关键词聚类方法论", "4.3 BSR 榜单深度解析", "4.5 选品评分模型", "4.7 P&L 盈利测算实操", "4.9 雷达图与趋势可视化"],
    subtasks: [
      { name: "完成关键词聚类分析(3 个意图簇)", done: true },
      { name: "提取 BSR Top 20 选品候选池", done: true },
      { name: "完成盈利 P&L 测算(含 FBA 费)", done: true },
      { name: "撰写选品结论报告(≥ 800 字)", done: false },
      { name: "插入关键词趋势与机会雷达图", done: false },
    ],
    versions: [
      { v: "v3 · 当前版本", time: "今天 11:02", diff: "补充关键词聚类结论:3 个意图簇各 ≥ 15 词,新增「静音 & 过滤」长尾词 8 个" },
      { v: "v2", time: "昨天 21:08", diff: "完成 BSR Top 20 候选池 + P&L 测算,毛利率区间 18%–24%(FBA 费已对接计算器真实报价)" },
      { v: "v1", time: "11-14 18:20", diff: "初稿:锁定「宠物智能饮水机」子类目,定义分析目标与数据口径(亚马逊 US,近 90 天数据)" },
    ],
    aiSuggestion: "当前版本进度 70%,距提交还差「结论报告」和「可视化」两步。针对宠物智能饮水机这个类目的具体建议:① 结论报告中明确对比 ASIN B09X2R5QJP(CR3 第 1,近 90 天月均销 4200 件)与 B08MBZ6LDQ(新入场,差评集中在「噪音大」),写出你的差异化切入点;② P&L 已测算毛利 22%,结论中注明该价格带($29.99–$39.99)的最低盈亏平衡点;③ 雷达图的「竞争烈度」轴数据建议用 CR3(=47%)而非主观评分,更有说服力。",
  },
  {
    id: "T-1038", title: "TikTok Shop 英国站 · 美妆类目机会扫描报告",
    type: "市场分析", platform: "TikTok", course: "EC-304", difficulty: 3,
    due: "明天 18:00", dueSub: "剩余 1 天 7 小时", status: "inprogress",
    weight: 10, score: null, reviewStatus: "未评阅", progress: 45,
    chapters: ["3.2 TikTok Shop 类目结构", "3.4 英国消费趋势解读"],
    subtasks: [
      { name: "抓取英国站 Top 100 美妆商品数据", done: true },
      { name: "完成品牌集中度与新品率分析", done: true },
      { name: "识别 3 个高机会子品类", done: false },
      { name: "撰写机会扫描报告正文", done: false },
      { name: "制作市场规模趋势图", done: false },
    ],
    versions: [
      { v: "v2 · 当前版本", time: "今天 09:30", diff: "完成数据采集部分与品牌分析" },
      { v: "v1", time: "11-15 20:10", diff: "初稿框架与数据口径定义" },
    ],
    aiSuggestion: "已完成数据采集阶段,进度良好。建议重点聚焦「底妆」与「防晒」两个子品类——这两类近 90 天搜索量环比增长超 35%,竞争密度相对低。",
  },
  {
    id: "T-1036", title: "Shopee 台湾站 · 关键词研究:运动户外类目",
    type: "关键词研究", platform: "Shopee", course: "EC-305", difficulty: 3,
    due: "11 月 19 日 18:00", dueSub: "剩余 2 天", status: "inprogress",
    weight: 10, score: null, reviewStatus: "未评阅", progress: 55,
    chapters: ["5.1 Shopee 关键词工具使用", "5.3 长尾词挖掘策略"],
    subtasks: [
      { name: "建立核心词库(≥ 50 个核心词)", done: true },
      { name: "长尾词扩展至 200 个", done: true },
      { name: "完成搜索意图分类标注", done: false },
      { name: "竞争难度评估与机会值计算", done: false },
      { name: "输出关键词策略规划文档", done: false },
    ],
    versions: [
      { v: "v2 · 当前版本", time: "今天 14:20", diff: "完成核心词库建设与长尾词扩展" },
      { v: "v1", time: "11-16 10:05", diff: "初稿:词库框架与数据来源确认" },
    ],
    aiSuggestion: "词库基础扎实,建议在搜索意图分类时重点区分「信息型」与「购买型」意图词——运动户外类「攻略」类词转化率普遍低于「推荐」类词约 40%,应优先加权购买意图词。",
  },
  {
    id: "T-1033", title: "Shopee 越南站 · 3C 配件竞品调研与策略分析",
    type: "竞品分析", platform: "Shopee", course: "EC-305", difficulty: 3,
    due: "11 月 20 日 18:00", dueSub: "剩余 3 天", status: "inprogress",
    weight: 10, score: null, reviewStatus: "未评阅", progress: 15,
    chapters: ["6.2 竞品分析框架", "6.4 东南亚 3C 市场特点"],
    subtasks: [
      { name: "识别直接竞品 10 个,间接竞品 5 个", done: true },
      { name: "完成多维度对比表格", done: false },
      { name: "撰写 SWOT 矩阵分析", done: false },
      { name: "提炼 3 条可借鉴竞品策略", done: false },
      { name: "制作竞品定位气泡图", done: false },
    ],
    versions: [{ v: "v1 · 当前版本", time: "昨天 16:45", diff: "竞品识别完成,开始对比分析阶段" }],
    aiSuggestion: "竞品识别阶段完成得不错。建议接下来优先完成「多维度对比表格」——可直接使用平台数据分析工具导出数据,SWOT 分析建议结合越南消费者偏好本地化品牌的特点展开。",
  },
  {
    id: "T-1031", title: "Amazon 欧洲站 · 家居收纳类目商品机会分析",
    type: "商品机会", platform: "Amazon", course: "EC-304", difficulty: 4,
    due: "11 月 21 日", dueSub: "剩余 4 天", status: "inprogress",
    weight: 12, score: null, reviewStatus: "未评阅", progress: 30,
    chapters: ["7.1 机会指标体系搭建", "7.3 欧洲站选品特殊性"],
    subtasks: [
      { name: "建立机会三轴评估模型", done: true },
      { name: "从 50+ 候选品中初筛", done: false },
      { name: "完成 Top 5 候选差异化方案", done: false },
      { name: "风险矩阵评估(合规/侵权/季节)", done: false },
      { name: "输出优先级排序报告", done: false },
    ],
    versions: [{ v: "v1 · 当前版本", time: "11-17 22:10", diff: "建立机会三轴评估模型框架" }],
    aiSuggestion: "欧洲站家居类目当前「模块化收纳」细分正处于增长期,建议候选品聚焦该方向。注意欧洲站需重点核查 CE 认证与 WEEE 注册要求,这是高频扣分项。",
  },
  {
    id: "T-1028", title: "Temu 北美站 · 女装价格策略研究与店铺定价建模",
    type: "定价与利润", platform: "Temu", course: "EC-306", difficulty: 4,
    due: "11 月 23 日", dueSub: "剩余 6 天", status: "inprogress",
    weight: 12, score: null, reviewStatus: "未评阅", progress: 20,
    chapters: ["8.1 成本结构拆解方法", "8.3 Temu 平台定价机制"],
    subtasks: [
      { name: "完整拆解 5 个 SKU 的成本结构", done: true },
      { name: "竞品价格带分布分析", done: false },
      { name: "建立价格弹性测算模型", done: false },
      { name: "设计旺季/节日动态定价规则", done: false },
      { name: "输出完整毛利 & ROI 报表", done: false },
    ],
    versions: [{ v: "v1 · 当前版本", time: "11-17 19:30", diff: "成本结构拆解完成,开始竞品定价分析" }],
    aiSuggestion: "成本结构拆解已完成,进度偏慢。建议本周优先完成「价格弹性测算模型」——可复用课程 8.3 的 Excel 模板。注意 Temu 北美站对超低价格有最低利润率要求。",
  },
  // ── 待提交 ───────────────────────────────────────────────────────────────
  {
    id: "T-1029", title: "定价策略设计:家居清洁类目全链路毛利建模",
    type: "定价与利润", platform: "Amazon", course: "EC-304", difficulty: 4,
    due: "11 月 22 日", dueSub: "待确认提交", status: "pending",
    weight: 12, score: null, reviewStatus: "AI 初评中", progress: 100,
    chapters: ["8.1 成本结构", "8.2 竞争定价分析", "8.3 动态定价策略"],
    subtasks: [
      { name: "完整成本结构拆解(6 个 SKU)", done: true },
      { name: "竞品价格带分布分析", done: true },
      { name: "价格弹性测算模型", done: true },
      { name: "旺季动态定价规则设计", done: true },
      { name: "毛利 & ROI 报表输出", done: true },
    ],
    versions: [
      { v: "v4 · 当前版本", time: "11-16 23:45", diff: "最终版:补充旺季定价规则与 ROI 敏感性分析" },
      { v: "v3", time: "11-15 20:10", diff: "完善弹性模型,修正运费系数" },
      { v: "v2", time: "11-14 18:30", diff: "添加竞品价格带分析图" },
      { v: "v1", time: "11-13 21:00", diff: "初稿:成本结构与基准定价" },
    ],
    aiSuggestion: "任务已完成,AI 初评中。预计 AI 评分约 84 分,主要扣分项为「动态定价规则」触发条件描述不够量化。建议在等待批阅期间优化旺季触发线的具体数据依据。",
  },
  {
    id: "T-1026", title: "Amazon FBA 店铺运营健康度全面诊断报告",
    type: "店铺运营", platform: "Amazon", course: "EC-306", difficulty: 3,
    due: "11 月 17 日", dueSub: "待确认提交", status: "pending",
    weight: 10, score: null, reviewStatus: "待教师批阅", progress: 100,
    chapters: ["9.1 店铺健康度指标体系", "9.3 转化漏斗优化"],
    subtasks: [
      { name: "店铺健康度 KPI 诊断(ODR/LR/VTR)", done: true },
      { name: "流量结构拆解分析", done: true },
      { name: "转化漏斗各环节分析", done: true },
      { name: "运营 SOP 文档输出", done: true },
      { name: "增长行动计划制定", done: true },
    ],
    versions: [
      { v: "v3 · 当前版本", time: "11-15 22:10", diff: "已提交:补充流量来源对比与增长行动计划" },
      { v: "v2", time: "11-14 19:05", diff: "完善转化漏斗分析,添加截图" },
      { v: "v1", time: "11-13 20:30", diff: "初稿:健康度诊断" },
    ],
    aiSuggestion: "已进入教师批阅阶段。整体完成度较高,注意转化漏斗分析中「加购→购买」环节的改进建议可以更具体——建议给出具体的 Listing 优化操作项。",
  },
  {
    id: "T-1024", title: "TikTok Shop 美国站 · 厨房小家电商品机会报告",
    type: "商品机会", platform: "TikTok", course: "EC-305", difficulty: 3,
    due: "11 月 16 日", dueSub: "待确认提交", status: "pending",
    weight: 10, score: null, reviewStatus: "待教师批阅", progress: 100,
    chapters: ["7.2 TikTok Shop 商品机会矩阵", "7.4 美国站消费品类趋势"],
    subtasks: [
      { name: "完成 3 个机会维度模型构建", done: true },
      { name: "Top 5 候选品差异化方案", done: true },
      { name: "合规风险评估(UL/FCC)", done: true },
      { name: "优先级排序报告", done: true },
    ],
    versions: [
      { v: "v3 · 当前版本", time: "11-14 23:30", diff: "最终提交:补充合规风险部分" },
      { v: "v2", time: "11-13 18:00", diff: "完善差异化方案" },
      { v: "v1", time: "11-12 20:00", diff: "初稿:机会矩阵框架" },
    ],
    aiSuggestion: "报告完整度高,等待教师批阅。建议关注「气炸锅」和「迷你冰箱」这两个子品类——近期在 TikTok LIVE 带货中爆发性增长,可作为后续补充方向。",
  },
  // ── 逾期 ─────────────────────────────────────────────────────────────────
  {
    id: "T-1025", title: "第 3 章 AI 辅助实训周报 · 工具使用总结",
    type: "报告撰写", platform: undefined, course: "EC-304", difficulty: 2,
    due: "11 月 13 日 23:59", dueSub: "已逾期 4 天", status: "overdue",
    weight: 8, score: null, reviewStatus: "未评阅", progress: 60,
    chapters: ["3.5 AI 工具在跨境选品中的应用", "3.6 实训周报写作规范"],
    subtasks: [
      { name: "总结本周使用的 AI 工具(≥ 3 个)", done: true },
      { name: "记录工具使用流程与输出结果", done: true },
      { name: "对比 AI 输出与人工判断的差异", done: true },
      { name: "撰写反思与改进方向(≥ 300 字)", done: false },
      { name: "附录:工具截图(≥ 5 张)", done: false },
    ],
    versions: [{ v: "v1 · 当前版本", time: "11-13 15:20", diff: "完成前 3 项子任务,反思部分未写" }],
    aiSuggestion: "报告已逾期,建议尽快补交。现有完成度 60%,还差「反思与改进方向」和截图附录两部分,预计再花 1 小时可完成。逾期提交上限分数为 85 分,尽早提交损失越小。",
  },
  {
    id: "T-1020", title: "Shopee 台湾站 · 母婴类目旺季运营分析报告",
    type: "市场分析", platform: "Shopee", course: "EC-305", difficulty: 3,
    due: "11 月 10 日 18:00", dueSub: "已逾期 8 天", status: "overdue",
    weight: 8, score: null, reviewStatus: "未评阅", progress: 40,
    chapters: ["3.1 Shopee 台湾站市场结构", "3.3 母婴类目消费特点"],
    subtasks: [
      { name: "完成台湾站母婴类目数据采集", done: true },
      { name: "旺季(年节/双十一)流���分析", done: true },
      { name: "TOP 品牌运营策略对比", done: false },
      { name: "旺季选品与库存规划建议", done: false },
      { name: "完整报告撰写与图表制作", done: false },
    ],
    versions: [{ v: "v1 · 当前版本", time: "11-09 20:30", diff: "完成数据采集与旺季流量分析" }],
    aiSuggestion: "已逾期 8 天,逾期提交上限分数为 75 分,每晚提交 1 天上限再降 2 分。建议立即申请延期并尽快提交。核心数据已采集完毕,剩余工作约需 3-4 小时,不要再拖。",
  },
  // ── 已完成 ────────────────────────────────────────────────────────────────
  {
    id: "T-1018", title: "Shopee 越南站 · 3C 配件竞品调研(基础版)",
    type: "竞品分析", platform: "Shopee", course: "EC-305", difficulty: 2,
    due: "11 月 10 日", dueSub: "按时提交", status: "done",
    weight: 10, score: 92, reviewStatus: "已评阅", progress: 100,
    chapters: ["6.2 竞品分析框架"],
    subtasks: [
      { name: "竞品识别(≥ 10 个)", done: true },
      { name: "多维度对比表格", done: true },
      { name: "SWOT 分析", done: true },
      { name: "策略提炼报告", done: true },
    ],
    scoreBreakdown: [
      { item: "竞品识别完整性", score: 18, max: 20 },
      { item: "多维度对比",     score: 28, max: 30 },
      { item: "SWOT 分析",      score: 19, max: 20 },
      { item: "可借鉴策略提炼", score: 18, max: 20 },
      { item: "数据可视化",     score: 9,  max: 10 },
    ],
    versions: [
      { v: "v2 · 提交版本", time: "11-09 22:40", diff: "最终版:补充竞品策略总结" },
      { v: "v1", time: "11-08 19:00", diff: "初稿" },
    ],
    aiSuggestion: "得分 92 分,表现优秀。扣分主要在「数据可视化」一项,雷达图标题与坐标轴标注不完整。下次注意补充图表来源说明,可冲击满分。",
  },
  {
    id: "T-1015", title: "Amazon 美国站 · 宠物类目市场规模与增速分析",
    type: "������分析", platform: "Amazon", course: "EC-304", difficulty: 3,
    due: "11 月 06 日", dueSub: "按时提交", status: "done",
    weight: 10, score: 88, reviewStatus: "已评阅", progress: 100,
    chapters: ["3.1 市场分析方法论", "3.3 亚马逊类目数据解读"],
    subtasks: [
      { name: "完成市场规模数据采集", done: true },
      { name: "同比/环比增速计算", done: true },
      { name: "需求与痛点洞察", done: true },
      { name: "结论与建议撰写", done: true },
    ],
    scoreBreakdown: [
      { item: "数据来源完整性",     score: 16, max: 20 },
      { item: "类目与细分市场界定", score: 13, max: 15 },
      { item: "规模与增速量化",     score: 22, max: 25 },
      { item: "需求与痛点洞察",     score: 19, max: 20 },
      { item: "结论与可操作建议",   score: 18, max: 20 },
    ],
    versions: [{ v: "v2 · 提交版本", time: "11-05 23:15", diff: "最终版" }],
    aiSuggestion: "得分 88 分,整体完成质量良好。主要扣分项为「数据来源完整性」,建议在后续报告中增加原始数据截图作为辅助证明。",
  },
  {
    id: "T-1012", title: "第 2 章 关键词研究实操:亚马逊 Home & Kitchen",
    type: "关键词研究", platform: "Amazon", course: "EC-304", difficulty: 2,
    due: "10 月 29 日", dueSub: "按时提交", status: "done",
    weight: 8, score: 95, reviewStatus: "已评阅", progress: 100,
    chapters: ["2.1 关键词工具使用", "2.3 长尾词策略"],
    subtasks: [
      { name: "建立核心词库(200 词)", done: true },
      { name: "搜索意图分类标注", done: true },
      { name: "竞争难度评估", done: true },
      { name: "策略规划文档", done: true },
    ],
    scoreBreakdown: [
      { item: "词库覆盖度",     score: 24, max: 25 },
      { item: "搜索意图分类",   score: 19, max: 20 },
      { item: "竞争难度评估",   score: 19, max: 20 },
      { item: "关键词策略规划", score: 19, max: 20 },
      { item: "趋势与季节性分析", score: 14, max: 15 },
    ],
    versions: [{ v: "v1 · 提交版本", time: "10-28 20:30", diff: "一次性完成提交" }],
    aiSuggestion: "优秀!得分 95 分,词库覆盖度和意图分类都非常扎实。建议在后续关键词类任务中继续保持对长尾词的系统挖掘习惯。",
  },
  {
    id: "T-1009", title: "Shopee 台湾站 · 运动户外商品机会扫描",
    type: "商品机会", platform: "Shopee", course: "EC-305", difficulty: 3,
    due: "10 月 24 日", dueSub: "按时提交", status: "done",
    weight: 10, score: 85, reviewStatus: "已评阅", progress: 100,
    chapters: ["7.1 机会识别框架", "7.2 Shopee 类目分析"],
    subtasks: [
      { name: "机会三轴模型构建", done: true },
      { name: "候选品初筛(50 个)", done: true },
      { name: "Top 3 差异化方案", done: true },
      { name: "优先级排序报告", done: true },
    ],
    scoreBreakdown: [
      { item: "机会指标体系",   score: 17, max: 20 },
      { item: "候选品筛选逻辑", score: 21, max: 25 },
      { item: "差异化方向",     score: 22, max: 25 },
      { item: "风险评估",       score: 12, max: 15 },
      { item: "优先级排序",     score: 13, max: 15 },
    ],
    versions: [{ v: "v2 · 提交版本", time: "10-23 22:00", diff: "最终版" }],
    aiSuggestion: "得分 85 分,风险评估部分偏弱——台湾站运动户外类的季节性风险和库存风险未充分讨论,下次注意。",
  },
  {
    id: "T-1006", title: "Amazon 日本站 · 家品类定价与竞争分析",
    type: "定价与利润", platform: "Amazon", course: "EC-304", difficulty: 3,
    due: "10 月 18 日", dueSub: "按时提交", status: "done",
    weight: 12, score: 90, reviewStatus: "已评阅", progress: 100,
    chapters: ["8.1 成本结构拆解方法", "8.2 竞争定价分析", "8.3 动态定价策略"],
    subtasks: [
      { name: "成本结构拆解(4 个 SKU)", done: true },
      { name: "日本站竞品价格带分析", done: true },
      { name: "价格弹性测算", done: true },
      { name: "毛利报表", done: true },
    ],
    scoreBreakdown: [
      { item: "成本结构拆解",   score: 23, max: 25 },
      { item: "竞争定价分析",   score: 18, max: 20 },
      { item: "弹性测算",       score: 18, max: 20 },
      { item: "动态定价策略",   score: 17, max: 20 },
      { item: "毛利 & ROI 报表", score: 14, max: 15 },
    ],
    versions: [{ v: "v2 · 提交版本", time: "10-17 21:30", diff: "最终版" }],
    aiSuggestion: "得分 90 分,整体优秀。动态定价策略部分可以更细化触发条件,是未来提分的主要方向。",
  },
  {
    id: "T-1003", title: "第 1 章实训:亚马逊类目入门扫描",
    type: "市场分析", platform: "Amazon", course: "EC-304", difficulty: 1,
    due: "10 月 10 日", dueSub: "按时提交", status: "done",
    weight: 5, score: 96, reviewStatus: "已评阅", progress: 100,
    chapters: ["1.1 亚马逊平台概述", "1.3 类目扫描方法"],
    subtasks: [
      { name: "选择并描述一个目标类目", done: true },
      { name: "整理类目基本数据", done: true },
      { name: "简要总结(200 字)", done: true },
    ],
    scoreBreakdown: [
      { item: "数据来源完整性",     score: 19, max: 20 },
      { item: "类目与细分市场界定", score: 15, max: 15 },
      { item: "规模与增速量化",     score: 24, max: 25 },
      { item: "需求与痛点洞察",     score: 19, max: 20 },
      { item: "结论与可操作建议",   score: 19, max: 20 },
    ],
    versions: [{ v: "v1 · 提交版本", time: "10-09 19:00", diff: "按时提交" }],
    aiSuggestion: "首个实训任务完成得非常好,得分 96 分!保持这种严谨的数据收集习惯,在后续高难度任务中会非常受益。",
  },
  // ── 竞赛任务 ─────────────────────────────────────────────────────────────
  {
    id: "T-9001", title: "第十二届全国跨境电商创新创业大赛 · 校内选拔",
    type: "竞赛任务", platform: undefined, course: "EC-304", difficulty: 5,
    due: "11 月 28 日", dueSub: "剩余 11 天", status: "contest",
    weight: 20, score: null, reviewStatus: "-", progress: 10,
    chapters: ["所有章节", "选读:跨境电商大赛历届赛题"],
    subtasks: [
      { name: "研读赛题并拆解考察维度", done: true },
      { name: "组建分析框架与分工计划", done: false },
      { name: "完成 3 个赛题方向的数据采集", done: false },
      { name: "撰写主体分析内容(≥ 5000 字)", done: false },
      { name: "制作答辩 PPT(≥ 20 页)", done: false },
      { name: "内部预讲并修改", done: false },
    ],
    versions: [{ v: "v1 · 当前版本", time: "11-17 10:30", diff: "赛题理解与框架规划" }],
    aiSuggestion: "竞赛任务难度最高,建议尽早启动。历届获奖作品通常在「方法论创新性」和「洞察力」两个维度得分最高。建议采用「机会扫描→竞品对标→定价测算」的三段式框架。",
  },
  {
    id: "T-9002", title: "省级外贸新业态创新创业大赛 · 跨境电商赛道",
    type: "竞赛任务", platform: undefined, course: "EC-304", difficulty: 5,
    due: "12 月 15 日", dueSub: "剩余 28 天", status: "contest",
    weight: 25, score: null, reviewStatus: "-", progress: 0,
    chapters: ["所有章节", "选读:省赛评分标准"],
    subtasks: [
      { name: "阅读并理解省赛评分标准", done: false },
      { name: "确定参赛方向与选品类目", done: false },
      { name: "完成完整市场分析报告", done: false },
      { name: "制作商业计划书(BP)", done: false },
      { name: "准备路演 PPT 与答辩材料", done: false },
      { name: "参加校内选拔赛", done: false },
    ],
    versions: [{ v: "v0 · 规划阶段", time: "11-17 10:30", diff: "任务初始化:省赛报名确认,尚未开始实质性内容输出" }],
    aiSuggestion: "省赛竞争激烈,建议在校赛 T-9001 基础上复用数据和框架,减少重复工作。省赛评分中「商业可行性」权重较高,需要补充供应链对接和首批测款方案。",
  },

// ── 新增实训任务(进行中)────────────────────────────────────────────────
  {
    id: "T-1045", title: "Amazon 日本站 · 厨房小家电竞品对标报告",
    type: "竞品分析", platform: "Amazon", course: "EC-304", difficulty: 3,
    due: "11 月 25 日", dueSub: "剩余 8 天", status: "inprogress",
    weight: 10, score: null, reviewStatus: "未评阅", progress: 40,
    chapters: ["6.2 竞品分析框架", "6.5 日本市场消费特点"],
    subtasks: [
      { name: "识别直接竞品 10 个、间接竞品 5 个", done: true },
      { name: "完成多维度对比矩阵", done: true },
      { name: "撰写 SWOT 矩阵分析", done: false },
      { name: "提炼 3 条可借鉴竞品策略", done: false },
      { name: "制作气泡定位图与雷达图", done: false },
    ],
    versions: [
      { v: "v2 · 当前版本", time: "11-19 16:40", diff: "完成竞品识别与多维度对比矩阵" },
      { v: "v1", time: "11-18 21:10", diff: "初稿:确定竞品范围与数据口径" },
    ],
    aiSuggestion: "日本站厨房小家电竞争激烈,头部品牌 CR3 达 62%,建议 SWOT 中重点分析「品牌忠诚度壁垒」这一结构性威胁。气泡图三轴(价格×评分×月销量)须用实际估算数值,不可使用区间描述。",
  },
  {
    id: "T-1044", title: "Lazada 泰国站 · 家居用品市场规模扫描",
    type: "市场分析", platform: "Lazada", course: "EC-305", difficulty: 2,
    due: "11 月 26 日", dueSub: "剩余 9 天", status: "inprogress",
    weight: 8, score: null, reviewStatus: "未评阅", progress: 35,
    chapters: ["3.6 东南亚新兴市场解读", "3.8 Lazada 平台数据工具"],
    subtasks: [
      { name: "完成泰国站家居用品类目数据采集", done: true },
      { name: "计算市场规模与 12 个月增速", done: false },
      { name: "识别 3 个高增速细分品类", done: false },
      { name: "撰写需求与痛点洞察", done: false },
      { name: "输出结论与建议", done: false },
    ],
    versions: [{ v: "v1 · 当前版本", time: "11-19 10:05", diff: "数据采集完成,进入分析阶段" }],
    aiSuggestion: "泰国站近 12 个月家居用品搜索量增速约 28%,其中「收纳整理」和「智能家居周边」子品类增速超 45%。建议重点聚焦这两个方向,数据来源可交叉使用 Lazada 卖家中心后台与第三方工具。",
  },
  {
    id: "T-1043", title: "Shopee 马来西亚站 · 宠物用品关键词研究",
    type: "关键词研究", platform: "Shopee", course: "EC-305", difficulty: 2,
    due: "11 月 27 日", dueSub: "剩余 10 天", status: "inprogress",
    weight: 8, score: null, reviewStatus: "未评阅", progress: 60,
    chapters: ["5.1 Shopee 关键词工具使用", "5.4 东南亚双语词库构建"],
    subtasks: [
      { name: "建立核心词库(≥ 50 词,含马来语关键词)", done: true },
      { name: "长尾词扩展至 200 词", done: true },
      { name: "完成搜索意图分类标注", done: true },
      { name: "竞争难度评估与 ABC 分级", done: false },
      { name: "输出关键词策略规划文档", done: false },
    ],
    versions: [
      { v: "v2 · 当前版本", time: "11-20 13:30", diff: "完成词库建设与意图分类" },
      { v: "v1", time: "11-18 19:00", diff: "初稿:词库框架与双语词覆盖方案" },
    ],
    aiSuggestion: "马来语关键词覆盖是本站点的核心差异化加分项——建议在词库中至少保持 20% 马来语词(如「makanan kucing」「anjing mainan」),购买意图词在马来西亚站转化率比英语词高约 30%。",
  },
  {
    id: "T-1041", title: "Amazon 欧洲站 · 户外运动装备选品实训",
    type: "选品实训", platform: "Amazon", course: "EC-306", difficulty: 4,
    due: "11 月 28 日", dueSub: "剩余 11 天", status: "inprogress",
    weight: 15, score: null, reviewStatus: "未评阅", progress: 25,
    chapters: ["4.1 关键词聚类方法论", "4.6 欧洲站合规要点", "4.7 P&L 盈利测算实操"],
    subtasks: [
      { name: "完成关键词聚类分析(3 个意图簇)", done: true },
      { name: "提取 BSR Top 20 候选品并精选 10 个", done: false },
      { name: "完成盈利 P&L 测算(含 FBA 欧洲费率)", done: false },
      { name: "核查 CE/WEEE 合规要求", done: false },
      { name: "撰写选品结论报告(≥ 800 字)", done: false },
    ],
    versions: [{ v: "v1 · 当前版本", time: "11-20 09:00", diff: "关键词聚类完成,3 个意图簇各 ≥ 18 词" }],
    aiSuggestion: "欧洲站户外装备进入壁垒高,建议 P&L 测算时把 CE 认证费用(约 €800-2500 一次性)和 VAT 注册费用(德/法/意三国需分别注册)都算入成本结构,否则毛利预测会偏高约 5-8 个百分点。",
  },
  {
    id: "T-1040", title: "TikTok Shop 东南亚站 · 零食饮料商品机会��析",
    type: "商品机会", platform: "TikTok", course: "EC-305", difficulty: 3,
    due: "11 月 29 日", dueSub: "剩余 12 天", status: "inprogress",
    weight: 10, score: null, reviewStatus: "未评阅", progress: 20,
    chapters: ["7.2 TikTok Shop 商品机会矩阵", "7.5 东南亚食品类合规要点"],
    subtasks: [
      { name: "建立机会三轴评估模型", done: true },
      { name: "从 50+ 候选品中完成初筛", done: false },
      { name: "Top 5 候选品差异化方案", done: false },
      { name: "食品合规风险评估(各国清关差异)", done: false },
      { name: "优先级排序报告", done: false },
    ],
    versions: [{ v: "v1 · 当前版本", time: "11-20 17:20", diff: "建立机会三轴模型,候选品漏斗设计完成" }],
    aiSuggestion: "TikTok Shop 东南亚零食类目「爆款速生速死」特征明显,建议机会评估中加入「保质期风险」维度——保质期 < 12 个月的产品海外备货风险极高,应单独标记。候选品建议聚焦「泰国网红零食」和「韩国爆款小吃」两个消费者认知度已较高的方向。",
  },
  {
    id: "T-1039", title: "Amazon 美国站 · 家居收纳定价策略优化",
    type: "定价与利润", platform: "Amazon", course: "EC-306", difficulty: 3,
    due: "12 月 02 日", dueSub: "剩余 15 天", status: "inprogress",
    weight: 10, score: null, reviewStatus: "未评阅", progress: 30,
    chapters: ["8.1 成本结构拆解方法", "8.4 Amazon 价格战防御策略"],
    subtasks: [
      { name: "完整拆解 4 个 SKU 成本结构", done: true },
      { name: "完成竞品价格带分布分析", done: true },
      { name: "建立价格弹性测算模型", done: false },
      { name: "设计三种场景定价规则", done: false },
      { name: "输出毛利 & ROI 报表(三方案对比)", done: false },
    ],
    versions: [
      { v: "v2 · 当前版本", time: "11-19 22:15", diff: "完成成本拆解与竞品价格带分析" },
      { v: "v1", time: "11-18 20:00", diff: "初稿:4 个 SKU 成本结构框架" },
    ],
    aiSuggestion: "美国站家居收纳价格带 $15-35 竞争最激烈,你的主 SKU 若落在这个区间需要着重分析价格战防御线。弹性模型建议测算「降价 15% 需要增加多少销量才能保持等利润」,这个数字对定价决策最有说服力。",
  },
  {
    id: "T-1037", title: "Shopee 菲律宾站 · 母婴用品运营诊断报告",
    type: "店铺运营", platform: "Shopee", course: "EC-306", difficulty: 3,
    due: "12 月 04 日", dueSub: "剩余 17 天", status: "inprogress",
    weight: 10, score: null, reviewStatus: "未评阅", progress: 15,
    chapters: ["9.1 店铺健康度指标体系", "9.4 Shopee 平台运营规则"],
    subtasks: [
      { name: "完成店铺健康度 KPI 诊断", done: true },
      { name: "拆解流量结构(自然/广告/活动)", done: false },
      { name: "转化漏斗各环节流失原因分析", done: false },
      { name: "输出运营 SOP 文档", done: false },
      { name: "制定 3 条带 KPI 增长行动计划", done: false },
    ],
    versions: [{ v: "v1 · 当前版本", time: "11-20 15:00", diff: "完成店铺健康度 KPI 诊断,ODR 偏高需重点分析" }],
    aiSuggestion: "菲律宾站母婴类目流量来源中活动流量占比通常超 50%,日常流量结构分析时要单独剔除大促期间数据,否则基期偏高会让改进效果不明显。重点关注你的 ODR 指标——超过 1% 将触发平台警告。",
  },
  {
    id: "T-1035", title: "Amazon 德国站 · 工具五金类目报告撰写",
    type: "报告撰写", platform: "Amazon", course: "EC-304", difficulty: 3,
    due: "12 月 05 日", dueSub: "剩余 18 天", status: "inprogress",
    weight: 10, score: null, reviewStatus: "未评阅", progress: 50,
    chapters: ["报告撰写规范", "11.3 德国站合规报告格式"],
    subtasks: [
      { name: "完成执行摘要(≤ 200 字,结论先行)", done: true },
      { name: "完善目录与章节逻辑", done: true },
      { name: "所有论点配图表与数据来源", done: false },
      { name: "语言专业性检查与修改", done: false },
      { name: "最终格式规范检查", done: false },
    ],
    versions: [
      { v: "v2 · 当前版本", time: "11-20 11:20", diff: "完成执行摘要与目录结构" },
      { v: "v1", time: "11-18 22:00", diff: "初稿:各章节框架搭建" },
    ],
    aiSuggestion: "德国站报告建议在「数据可视化」部分增加 CE 合规状态矩阵图——将候选品的合规状态与风险等级用颜色编码矩阵展示,这在德国市场分析报告中是加分亮点。注意德语关键词与英语关键词的搜索量不能直接对比,须分别注明。",
  },
  {
    id: "T-1034", title: "Temu 欧洲站 · 饰品类目市场机会初探",
    type: "市场分析", platform: "Temu", course: "EC-305", difficulty: 2,
    due: "12 月 06 日", dueSub: "剩余 19 天", status: "inprogress",
    weight: 8, score: null, reviewStatus: "未评阅", progress: 20,
    chapters: ["3.7 Temu 平台机制解读", "3.9 欧洲时尚类目消费特点"],
    subtasks: [
      { name: "完成欧洲站饰品类目数据采集", done: true },
      { name: "计算市场规模与增速", done: false },
      { name: "细分市场拆解(按材质/风格/价格带)", done: false },
      { name: "竞争格局扫描(品牌集中度)", done: false },
      { name: "结论与建议输出", done: false },
    ],
    versions: [{ v: "v1 · 当前版本", time: "11-20 08:30", diff: "数据采集完成" }],
    aiSuggestion: "Temu 欧洲站饰品类竞争相对分散(CR5 约 28%),是新卖家入场窗口期。建议重点扫描「合成宝石」和「简约北欧风」两个细分,这两个方向近期在欧洲 TikTok 的种草内容中频繁出现,预计会带来流量。",
  },
  {
    id: "T-1032", title: "Amazon 美国站 · 运动健身器材选品实训(进阶)",
    type: "选品实训", platform: "Amazon", course: "EC-306", difficulty: 4,
    due: "12 月 08 日", dueSub: "剩余 21 天", status: "inprogress",
    weight: 15, score: null, reviewStatus: "未评阅", progress: 10,
    chapters: ["4.1-4.9 完整选品方法论", "4.10 运动健身类特殊合规"],
    subtasks: [
      { name: "关键词聚类(3 个意图簇,≥ 15 词/簇)", done: true },
      { name: "BSR Top 20 深度解析候选池", done: false },
      { name: "P&L 盈利测算(含 FBA + 广告费)", done: false },
      { name: "运动器材合规核查(ASTM/CPSC)", done: false },
      { name: "选品结论报告(≥ 800 字)", done: false },
    ],
    versions: [{ v: "v1 · 当前版本", time: "11-19 21:40", diff: "关键词聚类完成:核心购买词簇 18 词/场景词簇 20 词/长尾比较词簇 16 词" }],
    aiSuggestion: "运动健身器材类 FBA 体积费用是关键变量——哑铃/划船机等大件产品 FBA 费用可能占售价 35%+,建议在候选品筛选阶段就加入「FBA 费用/售价比」这个准入门槛指标,先于 BSR 分析进行淘汰。",
  },

// ── 新增实训任务(待提交)────────────────────────────────────────────────
  {
    id: "T-1030", title: "TikTok Shop 泰国站 · 美妆护肤竞品研究报告",
    type: "竞品分析", platform: "TikTok", course: "EC-305", difficulty: 3,
    due: "11 月 20 日", dueSub: "待确认提交", status: "pending",
    weight: 10, score: null, reviewStatus: "AI 初评中", progress: 100,
    chapters: ["6.2 竞品分析框架", "6.6 东南亚美妆竞争格局"],
    subtasks: [
      { name: "竞品识别(直接 10 + 间接 5)", done: true },
      { name: "多维度对���矩阵", done: true },
      { name: "SWOT 矩阵分析", done: true },
      { name: "可借鉴策略 ≥ 3 条", done: true },
      { name: "雷达图 + 气泡图", done: true },
    ],
    versions: [
      { v: "v3 · 当前版本", time: "11-19 23:55", diff: "最终版:补充气泡图与策略总结" },
      { v: "v2", time: "11-18 20:30", diff: "完成 SWOT 分析与雷达图" },
      { v: "v1", time: "11-17 18:00", diff: "初稿:竞品识别完成" },
    ],
    aiSuggestion: "AI 初评中,预计约 82 分。主要扣分项在「数据可视化」——气泡图缺少坐标轴标签。建议在等待批阅期间补充图表说明文字,教师批阅前可更新版本。",
  },
  {
    id: "T-1027", title: "Amazon 加拿大站 · 户外露营商品机会报告",
    type: "商品机会", platform: "Amazon", course: "EC-306", difficulty: 3,
    due: "11 月 19 日", dueSub: "待确认提交", status: "pending",
    weight: 10, score: null, reviewStatus: "待教师批阅", progress: 100,
    chapters: ["7.1 机会指标体系搭建", "7.6 加拿大市场特点"],
    subtasks: [
      { name: "机会三轴评估模型(50+ 候选初筛)", done: true },
      { name: "Top 5 候选品差异化方案", done: true },
      { name: "合规风险评估(CSA 认证)", done: true },
      { name: "优先级排序报告", done: true },
    ],
    versions: [
      { v: "v3 · 当前版本", time: "11-18 22:10", diff: "最终版:补充加拿大站运费与关税分析" },
      { v: "v2", time: "11-17 19:00", diff: "完成合规评估与差异化方案" },
      { v: "v1", time: "11-16 20:00", diff: "初稿:机会模型框架" },
    ],
    aiSuggestion: "已进入教师批阅阶段,整体完成质量良好。加拿大露营类目夏季(5-8月)需求集中,在优先级报告中补充旺季时序规划会是一个加分细节。",
  },
  {
    id: "T-1023", title: "Shopee 印尼站 · 3C 数码店铺运营健康诊断",
    type: "店铺运营", platform: "Shopee", course: "EC-306", difficulty: 3,
    due: "11 月 16 日", dueSub: "待确认提交", status: "pending",
    weight: 10, score: null, reviewStatus: "待教师批阅", progress: 100,
    chapters: ["9.1 店铺健康度指标体系", "9.5 印尼站运营规则"],
    subtasks: [
      { name: "KPI 诊断(ODR/LR/VTR)", done: true },
      { name: "流量结构拆解分析", done: true },
      { name: "转化漏斗流失原因分析", done: true },
      { name: "运营 SOP 输出", done: true },
      { name: "增长行动计划制定", done: true },
    ],
    versions: [
      { v: "v3 · 当前版本", time: "11-15 23:00", diff: "最终版:增长计划补充量化 KPI" },
      { v: "v2", time: "11-14 18:30", diff: "完善转化漏斗分析" },
      { v: "v1", time: "11-13 19:00", diff: "初稿:健康度诊断" },
    ],
    aiSuggestion: "已提交教师批阅。印尼站转化漏斗分析部分的「加购→购买」流失改进建议可以更具体——注意印尼用户分期付款使用率高达 60%,是加购不成交的核心原因,建议在改进建议中明确提出。",
  },
  {
    id: "T-1022", title: "Amazon 墨西哥站 · 家居清洁类目市场报告",
    type: "市场分析", platform: "Amazon", course: "EC-306", difficulty: 3,
    due: "11 月 15 日", dueSub: "待确认提交", status: "pending",
    weight: 10, score: null, reviewStatus: "AI 初评中", progress: 100,
    chapters: ["3.10 拉美市场特点", "3.11 Amazon 墨西哥站数据工具"],
    subtasks: [
      { name: "市场规模与增速数据采集", done: true },
      { name: "细分品类拆解分析", done: true },
      { name: "需求与痛点洞察", done: true },
      { name: "结论与建议输出", done: true },
    ],
    versions: [
      { v: "v2 · 当前版本", time: "11-14 22:40", diff: "最终版:补充拉美消费特征分析" },
      { v: "v1", time: "11-12 20:00", diff: "初稿" },
    ],
    aiSuggestion: "AI 初评中,预计约 80 分。扣分项主要在数据来源——墨西哥站可用的第三方工具较少,需注明数据局限性并使用亚马逊官方 Best Sellers 排行作为辅助来源。",
  },
  {
    id: "T-1021", title: "TikTok Shop 美国站 · 关键词研究:运动服饰",
    type: "关键词研究", platform: "TikTok", course: "EC-305", difficulty: 3,
    due: "11 月 14 日", dueSub: "待确认提交", status: "pending",
    weight: 8, score: null, reviewStatus: "待教师批阅", progress: 100,
    chapters: ["5.2 TikTok 关键词与标签研究", "5.5 美国运动服饰搜索趋势"],
    subtasks: [
      { name: "核心词库(≥ 50 词)", done: true },
      { name: "长尾词扩展至 200 词", done: true },
      { name: "搜索意图分类标注", done: true },
      { name: "竞争难度评估与 ABC 分级", done: true },
      { name: "关键词策略规划文档", done: true },
    ],
    versions: [
      { v: "v2 · 当前版本", time: "11-13 23:30", diff: "最终版:补充季节性趋势分析" },
      { v: "v1", time: "11-11 20:00", diff: "初稿" },
    ],
    aiSuggestion: "已提交教师批阅,整体完成度高。TikTok 运动服饰关键词特点是「标签词」与「搜索词」双轨并行,建议在策略部分补充 Hashtag 与关键词的协同投放逻辑。",
  },
  {
    id: "T-1019", title: "Temu 北美站 · 3C 配件定价研究报告",
    type: "定价与利润", platform: "Temu", course: "EC-306", difficulty: 3,
    due: "11 月 13 日", dueSub: "待确认提交", status: "pending",
    weight: 10, score: null, reviewStatus: "待教师批阅", progress: 100,
    chapters: ["8.3 Temu 平台定价机制", "8.5 北美 3C 价格竞争分析"],
    subtasks: [
      { name: "完整成本结构拆解(5 SKU)", done: true },
      { name: "竞品价格带分布分析", done: true },
      { name: "价格弹性测算模型", done: true },
      { name: "动态定价规则设计", done: true },
      { name: "毛利 & ROI 报表输出", done: true },
    ],
    versions: [
      { v: "v4 · 当前版本", time: "11-12 22:00", diff: "最终版:ROI 敏感性分析补充" },
      { v: "v3", time: "11-11 19:00", diff: "完善弹性模型与动态定价规则" },
      { v: "v2", time: "11-10 18:00", diff: "完成竞品价格分析" },
      { v: "v1", time: "11-09 20:00", diff: "初稿" },
    ],
    aiSuggestion: "已进入批阅阶段。Temu 北美 3C 配件定价最低利润率要求(通常 ≥ 8%)是本报告特别需要注明的合规边界,如果没有体现这条规则会影响「动态定价策略」维度得分。",
  },

// ── 新增实训任务(逾期)────────────────────────────────────────────────
  {
    id: "T-1017", title: "Amazon 英国站 · 母婴类目商品机会扫描",
    type: "商品机会", platform: "Amazon", course: "EC-304", difficulty: 3,
    due: "11 月 05 日", dueSub: "已逾期 13 天", status: "overdue",
    weight: 10, score: null, reviewStatus: "未评阅", progress: 55,
    chapters: ["7.1 机会指标体系搭建", "7.7 英国母婴合规要求"],
    subtasks: [
      { name: "建立机会三轴评估模型", done: true },
      { name: "从 50+ 候选中完成初筛", done: true },
      { name: "Top 5 候选品差异化方案", done: true },
      { name: "合规风险评估(UKCA/BS EN 安全标准)", done: false },
      { name: "优先级排序报告", done: false },
    ],
    versions: [{ v: "v1 · 当前版本", time: "11-04 21:00", diff: "完成初筛与差异化方案,合规部分未完成" }],
    aiSuggestion: "已逾期 13 天,逾期提交上限分数为 72 分。合规评估和优先级报告合计约 1.5 小时工作量,��议今��完成提交。英国母婴类 UKCA 标准是脱欧后独立认证体系,务必与 CE 分开注明。",
  },
  {
    id: "T-1016", title: "第 4 章 实训周报 · 竞品分析工具使用总结",
    type: "报告撰写", platform: undefined, course: "EC-305", difficulty: 2,
    due: "11 月 03 日 23:59", dueSub: "已逾期 15 天", status: "overdue",
    weight: 6, score: null, reviewStatus: "未评阅", progress: 70,
    chapters: ["4.8 竞品分析工具对比", "4.9 周报写作规范"],
    subtasks: [
      { name: "总结本周竞品分析工具使用情况", done: true },
      { name: "对比至少 2 款工具的优劣势", done: true },
      { name: "记录实际操作截图(≥ 5 张)", done: true },
      { name: "撰写反思与下周改进计划", done: false },
      { name: "格式规范检查(字体/配色/页码)", done: false },
    ],
    versions: [{ v: "v1 · 当前版本", time: "11-02 16:30", diff: "完成前 3 项,反思部分空白" }],
    aiSuggestion: "已逾期 15 天,每晚 1 天上限再降 2 分,逾期提交上限现为 70 分。还差「反思」和格式检查两项,预计 30 分钟可完成,强烈建议今天提交。",
  },
  {
    id: "T-1014", title: "Shopee 泰国站 · 家电类目关键词研究(基础)",
    type: "关键词研究", platform: "Shopee", course: "EC-304", difficulty: 2,
    due: "10 月 31 日", dueSub: "已逾期 18 天", status: "overdue",
    weight: 6, score: null, reviewStatus: "未评阅", progress: 30,
    chapters: ["5.1 Shopee 关键词工具", "5.6 泰国站电商词库特点"],
    subtasks: [
      { name: "建立核心词库(≥ 50 词)", done: true },
      { name: "长尾词扩展至 200 词", done: false },
      { name: "搜索意图分类标注", done: false },
      { name: "竞争难度评估", done: false },
      { name: "策略规划文档", done: false },
    ],
    versions: [{ v: "v1 · 当前版本", time: "10-30 14:00", diff: "核心词库完成,后续工作中断" }],
    aiSuggestion: "已逾期 18 天,逾期上限分数已降至 64 分。建议考虑是否还有提交价值,如果决定提交,核心词库已有 50 词基础,完成其余 4 项约需 3-4 小时。",
  },
  {
    id: "T-1013", title: "Amazon 日本站 · 家品类店铺诊断报告",
    type: "店铺运营", platform: "Amazon", course: "EC-304", difficulty: 2,
    due: "10 月 28 日 18:00", dueSub: "已逾期 21 天", status: "overdue",
    weight: 8, score: null, reviewStatus: "未评阅", progress: 45,
    chapters: ["9.1 店铺健康度指标", "9.6 亚马逊日本站运营特点"],
    subtasks: [
      { name: "健康度 KPI 诊断", done: true },
      { name: "流量结构分析", done: true },
      { name: "转化漏斗分析", done: false },
      { name: "运营 SOP 输出", done: false },
      { name: "增长行动计划", done: false },
    ],
    versions: [{ v: "v1 · 当前版本", time: "10-27 19:20", diff: "完成 KPI 诊断与流量结构分析" }],
    aiSuggestion: "已逾期 21 天,建议与教师沟通是否可以提交。日本站运营诊断的特殊性在于「乐天生态」对 Amazon 流量的分流,如果在流量结构分析中忽略这个背景,数据解读可能失准。",
  },

// ── 新增实训任务(已完成)────────────────────────────────────────────────
  {
    id: "T-1011", title: "Amazon 欧洲站 · 家居收纳市场分析报告",
    type: "市场分析", platform: "Amazon", course: "EC-305", difficulty: 3,
    due: "10 月 22 日", dueSub: "按时提交", status: "done",
    weight: 10, score: 87, reviewStatus: "已评阅", progress: 100,
    chapters: ["3.1 市场分析方法论", "3.5 欧洲站数据来源"],
    subtasks: [
      { name: "完成市场规模与增速数据采集", done: true },
      { name: "细分市场拆解", done: true },
      { name: "需求与痛点洞察", done: true },
      { name: "结论与建议撰写", done: true },
    ],
    scoreBreakdown: [
      { item: "数据来源完整性",     score: 17, max: 20 },
      { item: "类目与细分市场界定", score: 13, max: 15 },
      { item: "规模与增速量化",     score: 21, max: 25 },
      { item: "需求与痛点洞察",     score: 18, max: 20 },
      { item: "结论与可操作建议",   score: 18, max: 20 },
    ],
    versions: [{ v: "v2 · 提交版本", time: "10-21 23:00", diff: "最终版" }],
    aiSuggestion: "得分 87 分,扣分在「规模与增速量化」——GMV 数据引用了 2022 年数据,时效性不足。后续报告注意数据时效要在 3 个月以内。",
  },
  {
    id: "T-1010", title: "Shopee 越南站 · 运动户外关键词研究",
    type: "关键词研究", platform: "Shopee", course: "EC-305", difficulty: 2,
    due: "10 月 20 日", dueSub: "按时提交", status: "done",
    weight: 8, score: 91, reviewStatus: "已评阅", progress: 100,
    chapters: ["5.1 Shopee 关键词工具", "5.7 越南站词库构建要点"],
    subtasks: [
      { name: "核心词库(200 词)", done: true },
      { name: "意图分类标注", done: true },
      { name: "竞争难度评估", done: true },
      { name: "策略规划文档", done: true },
    ],
    scoreBreakdown: [
      { item: "词库覆盖度",       score: 23, max: 25 },
      { item: "搜索意图分类",     score: 18, max: 20 },
      { item: "竞争难度评估",     score: 19, max: 20 },
      { item: "关键词策略规划",   score: 18, max: 20 },
      { item: "趋势与季节性分析", score: 13, max: 15 },
    ],
    versions: [{ v: "v2 · 提交版本", time: "10-19 21:00", diff: "最终版" }],
    aiSuggestion: "得分 91 分,表现优秀!扣分在「趋势与季节性分析」——越南站双十一旺季特征未充分分析。下次关注越南本地节日(越南国庆/元旦)对搜索量的影响。",
  },
  {
    id: "T-1008", title: "Amazon 美国站 · 宠物饮水机竞品分析报告",
    type: "竞品分析", platform: "Amazon", course: "EC-304", difficulty: 3,
    due: "10 月 15 日", dueSub: "按时提交", status: "done",
    weight: 10, score: 89, reviewStatus: "已评阅", progress: 100,
    chapters: ["6.2 竞品分析框架", "6.3 宠物智能用品竞争格局"],
    subtasks: [
      { name: "竞品识别(直接 10 + 间接 5)", done: true },
      { name: "多维度对比矩阵", done: true },
      { name: "SWOT 分析", done: true },
      { name: "策略提炼报告", done: true },
    ],
    scoreBreakdown: [
      { item: "竞品识别完整性", score: 18, max: 20 },
      { item: "多维度对比",     score: 27, max: 30 },
      { item: "SWOT 分析",      score: 18, max: 20 },
      { item: "可借鉴策略提炼", score: 17, max: 20 },
      { item: "数据可视化",     score: 9,  max: 10 },
    ],
    versions: [{ v: "v2 · 提交版本", time: "10-14 22:00", diff: "最终版" }],
    aiSuggestion: "得分 89 分,整体优秀。气泡图数据来源说明缺失是主要扣分点,下次图表务必注明工具名称与截图日期。",
  },
  {
    id: "T-1007", title: "TikTok Shop · 直播选品策略报告",
    type: "商品机会", platform: "TikTok", course: "EC-305", difficulty: 3,
    due: "10 月 12 日", dueSub: "按时提交", status: "done",
    weight: 10, score: 83, reviewStatus: "已评阅", progress: 100,
    chapters: ["7.3 TikTok 直播电商选品逻辑", "7.8 爆款生命周期管理"],
    subtasks: [
      { name: "机会三轴评估模型", done: true },
      { name: "Top 5 候选品差异化方案", done: true },
      { name: "合规风险评估", done: true },
      { name: "优先级排序报告", done: true },
    ],
    scoreBreakdown: [
      { item: "机会��标体系",   score: 16, max: 20 },
      { item: "候选品筛选逻辑", score: 20, max: 25 },
      { item: "差异化方向",     score: 20, max: 25 },
      { item: "风险评估",       score: 13, max: 15 },
      { item: "优先级排序",     score: 14, max: 15 },
    ],
    versions: [{ v: "v1 · 提交版本", time: "10-11 20:30", diff: "最终版" }],
    aiSuggestion: "得分 83 分,机会指标体系部分扣分较多——「需求强度」轴仅用搜索量单一指标,缺少 GMV 估算和短视频播放量这两个 TikTok 特有指标,建议在下次选品报告中做多源交叉验证。",
  },
  {
    id: "T-1005", title: "Amazon 美国站 · 第 3 章竞品分析基础实训",
    type: "竞品分析", platform: "Amazon", course: "EC-304", difficulty: 2,
    due: "10 月 08 日", dueSub: "按时提交", status: "done",
    weight: 8, score: 94, reviewStatus: "已评阅", progress: 100,
    chapters: ["6.1 竞品分析入门", "6.2 竞品分析框架"],
    subtasks: [
      { name: "竞品识别(≥ 10 个)", done: true },
      { name: "多维度对比表格", done: true },
      { name: "SWOT 初级版", done: true },
      { name: "2 条可借鉴策略", done: true },
    ],
    scoreBreakdown: [
      { item: "竞品识别完整性", score: 19, max: 20 },
      { item: "多维度对比",     score: 28, max: 30 },
      { item: "SWOT 分析",      score: 19, max: 20 },
      { item: "可借鉴策略提炼", score: 19, max: 20 },
      { item: "数据可视化",     score: 9,  max: 10 },
    ],
    versions: [{ v: "v1 · 提交版本", time: "10-07 21:00", diff: "按时提交" }],
    aiSuggestion: "得分 94 分,竞品分析基础掌握扎实!数据可视化稍有不足——雷达图标题缺少「数据截止日期」标注,是一个细节规范问题。",
  },
  {
    id: "T-1004", title: "Shopee 台湾站 · 运动户外类目市场分析",
    type: "市场分析", platform: "Shopee", course: "EC-305", difficulty: 2,
    due: "10 月 05 日", dueSub: "按时提交", status: "done",
    weight: 8, score: 90, reviewStatus: "已评阅", progress: 100,
    chapters: ["3.2 东南亚市场解读", "3.4 台湾站消费特点"],
    subtasks: [
      { name: "数据采集与市场规模量化", done: true },
      { name: "细分市场拆解", done: true },
      { name: "需求与痛点洞察", done: true },
      { name: "结论与建议", done: true },
    ],
    scoreBreakdown: [
      { item: "数据来源完整性",     score: 18, max: 20 },
      { item: "类目与细分市场界定", score: 14, max: 15 },
      { item: "规模与增速量化",     score: 22, max: 25 },
      { item: "需求与痛点洞察",     score: 18, max: 20 },
      { item: "结论与可操作建议",   score: 18, max: 20 },
    ],
    versions: [{ v: "v1 · 提交版本", time: "10-04 22:00", diff: "按时提交" }],
    aiSuggestion: "得分 90 分,整体稳定。规模量化部分可进一步提升——台湾站双十一节点数据单独建立对比组,会让增速分析更有说服力。",
  },
  {
    id: "T-1002", title: "第 1 章 AI 工具介绍 · 工具清单整理作业",
    type: "报告撰写", platform: undefined, course: "EC-304", difficulty: 1,
    due: "10 月 03 日", dueSub: "按时提交", status: "done",
    weight: 5, score: 98, reviewStatus: "已评阅", progress: 100,
    chapters: ["1.2 AI 辅助工具概述", "1.4 工具清单整理规范"],
    subtasks: [
      { name: "整理 5 款以上 AI 工具的名称与功能", done: true },
      { name: "简要说明每款工具的适用场景", done: true },
      { name: "按照规范格式输出文档", done: true },
    ],
    scoreBreakdown: [
      { item: "结构逻辑",     score: 25, max: 25 },
      { item: "数据支撑充分", score: 24, max: 25 },
      { item: "语言表达",     score: 20, max: 20 },
      { item: "可视化质量",   score: 14, max: 15 },
      { item: "结论可操作性", score: 15, max: 15 },
    ],
    versions: [{ v: "v1 · 提交版本", time: "10-02 19:30", diff: "按时提交" }],
    aiSuggestion: "优秀!得分 98 分,几乎满分。是本课程迄今最高分记录之一,格式规范、逻辑清晰、工具描述精准。保持!",
  },
  {
    id: "T-1001", title: "跨境电商基础概念 · 课前测验与自我评估",
    type: "报告撰写", platform: undefined, course: "EC-304", difficulty: 1,
    due: "10 月 01 日", dueSub: "按时提交", status: "done",
    weight: 3, score: 92, reviewStatus: "已评阅", progress: 100,
    chapters: ["0.1 课程导学", "0.2 跨境电商基础概念"],
    subtasks: [
      { name: "完成课前测验(20 题)", done: true },
      { name: "提交自我评估表(300 字)", done: true },
    ],
    scoreBreakdown: [
      { item: "结构逻辑",     score: 23, max: 25 },
      { item: "数据支撑充分", score: 23, max: 25 },
      { item: "语言表达",     score: 18, max: 20 },
      { item: "可视化质量",   score: 13, max: 15 },
      { item: "结论可操作性", score: 15, max: 15 },
    ],
    versions: [{ v: "v1 · 提交版本", time: "09-30 20:00", diff: "按时提交" }],
    aiSuggestion: "得分 92 分,课前测验成绩优秀,基础概念掌握扎实,是后续高强度实训的良好起点!",
  },

{
    id: "T-1046", title: "Amazon 美国站 · 宠物用品 Listing 优化实训",
    type: "报告撰写", platform: "Amazon", course: "EC-306", difficulty: 3,
    due: "12 月 10 日", dueSub: "剩余 23 天", status: "inprogress",
    weight: 10, score: null, reviewStatus: "未评阅", progress: 35,
    chapters: ["报告撰写规范", "10.2 Listing 优化方法论"],
    subtasks: [
      { name: "完成执行摘要与目录结构", done: true },
      { name: "Listing 现状诊断报告(标题/五点/图片)", done: true },
      { name: "撰写优化方案(含关键词布局建议)", done: false },
      { name: "A+ 内容重构方案", done: false },
      { name: "语言专业性检查与格式规范", done: false },
    ],
    versions: [
      { v: "v2 · 当前版本", time: "11-20 19:00", diff: "完成 Listing 现状诊断,识别主图点击率偏低原因" },
      { v: "v1", time: "11-19 22:00", diff: "初稿:结构框架搭建" },
    ],
    aiSuggestion: "Listing 优化报告须以数据为锚点:用 CTR 与 CVR 的基准值(该类目平均 CTR 约 0.6%)来量化现状差距,优化方案中每条建议须明确「改前→改后」的预期指标变化,报告说服力会提升一个层级。",
  },
  {
    id: "T-1000", title: "EC-304 课程介绍 · 学习目标与课程规划确认",
    type: "报告撰写", platform: undefined, course: "EC-304", difficulty: 1,
    due: "09 月 25 日", dueSub: "按时提交", status: "done",
    weight: 2, score: 100, reviewStatus: "已评阅", progress: 100,
    chapters: ["0.0 课程导引"],
    subtasks: [
      { name: "阅读课程大纲并确认学习目标", done: true },
      { name: "提交个人课程规划表(100 字)", done: true },
    ],
    scoreBreakdown: [
      { item: "结构逻辑",     score: 25, max: 25 },
      { item: "数据支撑充分", score: 25, max: 25 },
      { item: "语言表达",     score: 20, max: 20 },
      { item: "可视化质量",   score: 15, max: 15 },
      { item: "结论可操作性", score: 15, max: 15 },
    ],
    versions: [{ v: "v1 · 提交版本", time: "09-24 18:00", diff: "按时提交" }],
    aiSuggestion: "满分!课程第一个作业完美收官,你的学习规划目标清晰、执行路径明确,是全班最早提交之一。",
  },

// ── 新增竞赛任务 ────────────────────────────────────────────────────────
  {
    id: "T-9003", title: "2025 亚马逊高校创新大赛 · 华南赛区选拔",
    type: "竞赛任务", platform: "Amazon", course: "EC-306", difficulty: 5,
    due: "12 月 20 日", dueSub: "剩余 33 天", status: "contest",
    weight: 20, score: null, reviewStatus: "-", progress: 5,
    chapters: ["所有章节", "选读:亚马逊高校大赛赛题汇编"],
    subtasks: [
      { name: "下载并研读大赛评分标准", done: true },
      { name: "确定参赛方向:选品赛道与平台", done: false },
      { name: "完成目标类目市场分析报告", done: false },
      { name: "完成竞品分析与差异化定位报告", done: false },
      { name: "制作选品 + 运营方案 PPT(≥ 25 页)", done: false },
      { name: "完成 P&L 可行性验证", done: false },
      { name: "内部预讲与修改", done: false },
    ],
    versions: [{ v: "v0 · 准备阶段", time: "11-19 10:00", diff: "已确认报名参赛,开始研读赛题材料" }],
    aiSuggestion: "亚马逊官方大赛评委特别看重「数据真实性」和「P&L 可验证性」,建议选择你最熟悉的类目(如宠物/家居)作为赛道,以便复用已有分析积累。与省赛 T-9002 时间线有冲突,建议先完成校赛 T-9001,再同步推进本赛事。",
  },
]

// ─── Task type categories ─────────────────────────────────────────────────────
const taskTypeCategories: { key: string; label: TaskType | "all"; icon: React.ReactNode }[] = [
  { key: "all",        label: "all",          icon: <ListChecks className="h-3.5 w-3.5" /> },
  { key: "market",     label: "市场分析",     icon: <BarChart2   className="h-3.5 w-3.5" /> },
  { key: "opportunity",label: "商品机会",     icon: <TrendingUp  className="h-3.5 w-3.5" /> },
  { key: "picking",    label: "选品实训",     icon: <Package     className="h-3.5 w-3.5" /> },
  { key: "competitor", label: "竞品分析",     icon: <ShieldCheck className="h-3.5 w-3.5" /> },
  { key: "pricing",    label: "定价与利润",   icon: <FlaskConical className="h-3.5 w-3.5" /> },
  { key: "report",     label: "报告撰写",     icon: <PenLine     className="h-3.5 w-3.5" /> },
  { key: "keyword",    label: "关键词研究",   icon: <Search      className="h-3.5 w-3.5" /> },
  { key: "store",      label: "店铺运营",     icon: <Megaphone   className="h-3.5 w-3.5" /> },
  { key: "contest",    label: "竞赛任务",     icon: <Trophy      className="h-3.5 w-3.5" /> },
]

function typeLabelFromKey(key: string): TaskType | null {
  const map: Record<string, TaskType> = {
    market: "市场分析", opportunity: "商品机会", picking: "选品实训",
    competitor: "竞品分析", pricing: "定价与利润", report: "报告撰写",
    keyword: "关键词研究", store: "店铺运营", contest: "竞赛任务",
  }
  return map[key] ?? null
}

// ─── Toast helper ─────────────────────────────────────────────────��──────────
function useToast() {
  const [msg, setMsg] = useState<string | null>(null)
  const show = useCallback((m: string) => {
    setMsg(m)
    setTimeout(() => setMsg(null), 3000)
  }, [])
  return { msg, show }
}

// ─── Type-specific AI draft templates ────────────────────────────────────────
const AI_DRAFT_BY_TYPE: Record<TaskType, string> = {
  "市场分析":
    `【市场分析报告框架 · AI 助教定制版】\n\n① 执行摘要(150 字)— 结论先行:点明目标类目、核心机会与推荐行动\n② 数据来源声明 — 平台 / 工具 / 抓取日期,不低于 3 个来源\n③ 市场规模量化 — GMV 区间 + 近 12 个月搜索量趋势折线图\n④ 细分市场拆解 — 按品类/价格带/用户群做饼图分析\n⑤ 竞争格局扫描 — 品牌集中度 CR5、新卖家入场率\n⑥ 需求与痛点提炼 — 从买家评论/问答中归纳 Top 3 痛点\n⑦ 结论 + 可操作建议 — 至少 2 条带量化目标的跟进行动`,

"商品机会":
    `【商品机会分析框架 · AI 助教定制版】\n\n① 机会三轴评估模型 — 需求强度 × 竞争烈度 × 利润空间坐标系\n② 候选品漏斗 — 从 50+ 初筛到 10 个精选,列明准入门槛条件\n③ Top 5 候选深挖 — 每品做 BSR 位置 / 评分分布 / 月销量估算\n④ 差异化切入方向 — 针对竞品评论差评点,提出 3 条可落地方案\n⑤ 合规与风险矩阵 — CE/FCC/UL/季节性/专利侵权逐一核查\n⑥ 优先级排序 — 综合评分表 + 最终 TOP 1 推荐理由`,

"选品实训":
    `【选品实训报告框架 · AI 助教定制版】\n\n① 关键词聚类(3 个意图簇)— 核心词 / 长尾词 / 场景词各 ≥ 15 个\n② BSR Top 20 深度解析 — 卖点提炼 + 评分分布热力图\n③ 选品候选池(≥ 10 个)— 每品含 ASIN / 月销 / 评分 / 价格 / 毛利估算\n④ 盈利 P&L 测算 — 产品成本 / 头程 / FBA / 平台费 / 广告费逐行拆解\n⑤ 选品结论报告(≥ 800 字)— 最终推荐品 + 差异化方案 + 首批测款计划\n⑥ 附录 — 关键词趋势截图 + 机会雷达图`,

"竞品分析":
    `【竞品分析报告框架 · AI 助教定制版】\n\n① 竞品识别 — 直接竞品 ≥ 10 个 + 间接竞品 ≥ 5 个,附筛选逻辑\n② 多维度对比矩阵 — 价格带 / 评分分布 / Listing 质量 / 物流方式 / 广告曝光\n③ SWOT 矩阵 — 以我方视角填写,数据支撑每个象限\n④ 核心竞品深挖(Top 3)— 买家评论情感分析 + 差评词云\n⑤ 可借鉴策略提炼 — ≥ 3 条直接可执行的对标操作\n⑥ 可视化 — 雷达图 + 气泡定位图(价格 × 评分 × 月销)`,

"定价与利润":
    `【定价与利润报告框架 · AI 助教定制版】\n\n① 完整成本结构拆解 — 产品成本 / 包装 / 头程 / FBA / 平台佣金 / 退货 / 广告,每行到位\n② 竞品价格带分析 — 价格区间分布直方图 + 价格战触发线识别\n③ 价格弹性测算模型 — 建立 Excel 弹性系数表,预测 ±10%/±20% 的利润变化\n④ 动态定价规则设计 — 大促前后 / 旺季 / 清库存三类触发场景各写具体规则\n⑤ 毛利 & ROI 报表 — 多方案对比(保守 / 基准 / 乐观),含月利润估算\n⑥ 最优定价建议 — 给出具体售价区间 + 触发条件量化描述`,

"报告撰写":
    `【报告撰写框架 · AI 助教定制版】\n\n① 封面 + 执行摘要(200 字)— 结论先行,3 句话点明核心发现\n② 目录 + 章节逻辑检查 — 确认各章节之间有明确过渡句\n③ 数据可视化清单 — 每个论点对应一张图表,列清图表类型与数据来源\n④ 语言专业性检查 — 避免口语化,替换主观形容词为数据描述\n⑤ 结论与建议 — 每条建议带具体执行步骤与可衡量目标\n⑥ 格式规范 — 字体统一 / 配色一致 / 页码完整 / 来源引用`,

"竞赛任务":
    `【竞赛备赛框架 · AI 助教定制版】\n\n① 赛题精读 — 拆解评分维度权重,识别核心考察点与隐性要求\n② 差异化破题 — 选取与众不同的切入角度,避免千篇一律的市场分析套路\n③ 数据采集计划 — 列出 5+ 数据来源,建立原始数据库\n④ 分析框架创新 — 组合 2 种以上分析方法(如 PESTLE + 波特五力)\n⑤ 核心��察提炼 — 找到 1-2 个"反直觉"或"高价值"的商业洞察\n⑥ 答辩 PPT 大纲(≥ 20 页)— 封面 / 摘要 / 分析 / 结论 / Q&A 备问库`,

"关键词研究":
    `【关键词研究报告框架 · AI 助教定制版】\n\n① 核心词库构建(≥ 50 词)— 使用 Helium10 / JS / 亚马逊自动补全三源交叉\n② 长尾词扩展至 200 词 — 场景词 / 竞品词 / 问题词各维度覆盖\n③ 搜索意图分类标注 — 购买意图 / 信息意图 / 导航意图三类,附判断逻辑\n④ 竞争难度量化 — 每词标注搜索量 / 竞争指数 / 机会值,建立 ABC 分级\n⑤ 关键词策略规划 — A 级词主攻 / B 级词测试 / C 级词长尾布局,含 PPC 与 SEO 分工\n⑥ 旺季趋势分析 — 识别核心词的季节性高峰,规划投入节点`,

"店铺运营":
    `【店铺运营诊断报告框架 · AI 助教定制版】\n\n① 店铺健康度 KPI 诊断 — ODR / LR / VTR / 晚发率逐一与平台基准对比\n② 流量结构拆解 — 自然搜索 / 广告 / 站外 / 品牌搜索占比趋势图\n③ 转化漏斗各环节分析 — 曝光 → 点击 → 加购 → 购买,找出最大流失环节\n④ Listing 优化建议 — 标题 / 五点 / 图片 / A+ 内容逐项评分与改进点\n⑤ 广告结构优化 — ACOS / ROAS 现状 + 预算分配建议\n⑥ 增长行动计划 — 3 条带 KPI 的具体行动,含责任人与完成时间`,
}

// ─── Countdown hook (for today-deadline tasks) ───────────────────────────────
function useCountdown(dueStr: string): string {
  const [display, setDisplay] = useState("")
  useEffect(() => {
    const isToday = dueStr.includes("今日")
    if (!isToday) return
    // Assume due is today at 23:59:59
    const tick = () => {
      const now = new Date()
      const end = new Date(now)
      end.setHours(23, 59, 59, 0)
      const diff = Math.max(0, end.getTime() - now.getTime())
      const h = Math.floor(diff / 3600000)
      const m = Math.floor((diff % 3600000) / 60000)
      const s = Math.floor((diff % 60000) / 1000)
      const urgent = h < 2
      setDisplay(urgent
        ? `剩余 ${h}h ${String(m).padStart(2,"0")}m ${String(s).padStart(2,"0")}s`
        : `剩余 ${h} 小时 ${m} 分`)
    }
    tick()
    const id = setInterval(tick, 1000)
    return () => clearInterval(id)
  }, [dueStr])
  return display
}

// ─── AI mock-review simulation hook ─────────────────────────────────────────
type ReviewPhase = "idle" | "uploading" | "reading" | "scoring" | "done"
const REVIEW_PHASES: { phase: ReviewPhase; label: string; ms: number }[] = [
  { phase: "uploading", label: "正在上传报告文件…",         ms: 1200 },
  { phase: "reading",   label: "AI 正在读取文档内容…",      ms: 2000 },
  { phase: "scoring",   label: "AI 逐维度打分中…",          ms: 2800 },
  { phase: "done",      label: "AI 初评完成,预评结果已生成", ms: 0 },
]

// Score range keyed by difficulty (1-5): [min, range]
const PRESCORE_RANGE: Record<number, [number, number]> = {
  1: [85, 12], // 85-96 — 入门任务完成度通常较高
  2: [80, 12], // 80-91
  3: [75, 13], // 75-87
  4: [70, 14], // 70-83
  5: [65, 15], // 65-79 — 竞赛/高难度任务评分严格
}

function useReviewSim() {
  const [phase, setPhase] = useState<ReviewPhase>("idle")
  const [preScore, setPreScore] = useState<number | null>(null)
  // Deduction details: one rubric item that lost points most
  const [deductItem, setDeductItem] = useState<string | null>(null)

const start = useCallback((difficulty: number, rubricItems: string[]) => {
    setPhase("uploading")
    const [base, range] = PRESCORE_RANGE[difficulty] ?? [72, 18]
    let delay = 0
    REVIEW_PHASES.forEach(({ phase: p, ms }) => {
      delay += ms === 0 ? 0 : ms
      if (ms === 0) {
        setTimeout(() => {
          setPhase(p)
          setPreScore(base + Math.floor(Math.random() * range))
          // Pick the rubric item with highest weight (last one tends to be hardest) as the deduction target
          const weakIdx = Math.floor(Math.random() * Math.min(rubricItems.length, 3)) + Math.max(0, rubricItems.length - 3)
          setDeductItem(rubricItems[weakIdx] ?? rubricItems[rubricItems.length - 1])
        }, delay)
      } else {
        setTimeout(() => setPhase(p), delay)
      }
    })
  }, [])
  const reset = useCallback(() => { setPhase("idle"); setPreScore(null); setDeductItem(null) }, [])
  return { phase, preScore, deductItem, start, reset }
}

// ─── AI draft hook (type-aware) ────────────────────────────────────────────
function useAIDraft(taskType: TaskType) {
  const [state, setState] = useState<"idle" | "loading" | "done">("idle")
  const [draft, setDraft] = useState<string | null>(null)
  const generate = useCallback(() => {
    setState("loading")
    const delay = 1800 + Math.random() * 600
    setTimeout(() => {
      setDraft(AI_DRAFT_BY_TYPE[taskType])
      setState("done")
    }, delay)
  }, [taskType])
  const reset = useCallback(() => { setState("idle"); setDraft(null) }, [])
  return { state, draft, generate, reset }
}

// ─── Workspace subtask input configs ─────────────────────────────────────────
// Each subtask name maps to a workspace "block" — a structured input the student fills
type WorkspaceBlock =
  | { kind: "textarea";  label: string; placeholder: string; hint?: string }
  | { kind: "table";     label: string; columns: string[]; rows: number; hint?: string }
  | { kind: "checklist"; label: string; items: string[]; hint?: string }

const WORKSPACE_BY_TYPE: Record<TaskType, WorkspaceBlock[]> = {
  "市场分析": [
    { kind: "textarea", label: "数据来源声明", placeholder: "列明数据来源平台、工具名称、抓取日期…例:\n- Jungle Scout · 2024-11-15 · Amazon US\n- Helium 10 Magnet · 2024-11-14 · 搜索量趋势", hint: "至少 3 个来源" },
    { kind: "table", label: "核心指标量化表", columns: ["指标名称","数值","同比增速","数据来源"], rows: 5, hint: "填写 GMV、搜索量、新品率等关键数字" },
    { kind: "textarea", label: "需求与痛点洞察", placeholder: "基于买家评论/Q&A归纳 Top 3 核心痛点:\n1. \n2. \n3. ", hint: "每条痛点后附典型评论原文" },
    { kind: "textarea", label: "结论与可操作建议", placeholder: "结论(100字以内):\n\n行动建议①:\n行动建议②:", hint: "建议要可量化、有截止时间" },
  ],
  "商品机会": [
    { kind: "table", label: "机会三轴评估矩阵", columns: ["候选品","需求强度(1-10)","竞争烈度(1-10)","利润空间(1-10)","综合评分"], rows: 8, hint: "从 50+ 候选中填入 Top 8 进行量化对比" },
    { kind: "textarea", label: "差异化切入方向", placeholder: "方向①:\n  - 依据:\n  - 实现路径:\n\n方向②:\n  - 依据:\n  - 实现路径:\n\n方向③:", hint: "每个方向需对应竞品评论中的具体差评痛点" },
    { kind: "checklist", label: "合规风险核查", items: ["CE 认证(欧洲站)","FCC 认证(美国站)","专利侵权检索","季节性风险评估","运输限制核查(锂电/液体等)"] },
    { kind: "textarea", label: "最终推荐与优先级排序", placeholder: "TOP 1 推荐:\n理由①(对应需求强度):\n理由②(对应利润空间):\n理由③(对应差异化可行性):\n\nTOP 2:\nTOP 3:", hint: "TOP1 的 3 条理由必须对应三轴评分中的维度数据" },
    { kind: "textarea", label: "风险应对预案", placeholder: "季节性风险:\n  触发情景:\n  应对措施:\n\n侵权/合规风险:\n  识别结果:\n  应对措施:\n\n竞争加剧风险:\n  预警指标:\n  应对措施:", hint: "风险预案是「风险评估」维度得分的关键,不能只列风险不写应对" },
  ],
  "选品实训": [
    { kind: "table", label: "关键词聚类分析表", columns: ["意图簇名称","代表词(5个)","月搜索量","竞争指数","机会评级"], rows: 3, hint: "完成 3 个意图簇:核心词簇/长尾词簇/场景词簇" },
    { kind: "table", label: "BSR Top 10 候选池", columns: ["ASIN","品名","月销量","评分","价格","毛利估算"], rows: 10, hint: "从 BSR Top 20 中精选 10 个候选" },
    { kind: "table", label: "P&L 盈利测算", columns: ["成本项目","金额(¥)","占比(%)","备注"], rows: 8, hint: "逐行拆解:产品成本/头程/FBA/平台费/广告费/退货" },
    { kind: "textarea", label: "选品结论报告(≥ 800 字)", placeholder: "一、最终推荐品及依据\n\n二、差异化切入方案\n\n三、首批测款计划\n\n四、风险提示", hint: "字数不足 800 字将影响得分" },
    { kind: "checklist", label: "关键词趋势与机会雷达图检查", items: ["已截图关键词近 90 天搜索量趋势折线图","已制作机会雷达图(需求/竞争/利润三维)","雷达图各轴标注数值依据","图表已插入报告对应章节","图表标题与来源注明完整"] },
  ],
  "竞品分析": [
    { kind: "table", label: "直接竞品识别表", columns: ["ASIN/链接","品牌","价格","评分","月销量","物流方式"], rows: 10, hint: "直接竞品 ≥ 10 个" },
    { kind: "table", label: "多维度对比矩阵", columns: ["竞品","Listing质量","主图评级","广告曝光","售后评价","综合评分"], rows: 5, hint: "选取 Top 5 竞品深度对比" },
    { kind: "textarea", label: "SWOT 矩阵分析", placeholder: "S(优势):\n- \n\nW(劣势):\n- \n\nO(机会):\n- \n\nT(威胁):\n- ", hint: "每个象限至少 2 条,需有数据支撑" },
    { kind: "textarea", label: "可借鉴竞品策略(≥3条)", placeholder: "策略①:\n  来源竞品:\n  可落地操作:\n\n策略②:\n\n策略③:", hint: "策略要具体、可执行，不要写泛论" },
    { kind: "checklist", label: "数据可视化完成度核查", items: ["已制作竞品雷达图(价格/评分/Listing/物流/广告 五维)","已制作气泡定位图(价格 × 评分 × 月销量)","两张图均有完整标题、轴标签与数据来源","图表已嵌入报告对应章节","颜色编码区分自身品牌与竞品"] },
  ],
  "定价与利润": [
    { kind: "table", label: "完整成本结构拆解", columns: ["成本项目","单件成本(¥)","占比(%)","数据来源"], rows: 8, hint: "必须包含:产品成本/头程/FBA/平台费/广告费/退货损耗" },
    { kind: "table", label: "竞品价格带分析", columns: ["价格区间","竞品数量","代表ASIN","平均评分","市场份额估算"], rows: 5, hint: "至少覆盖 3 个价格带区间" },
    { kind: "textarea", label: "动态定价规则设计", placeholder: "场景①:大促前 7 天\n  触发条件:\n  调价幅度:\n\n场景②:旺季(11-1月)\n  触发条件:\n  调价幅度:\n\n场景③:清库存\n  触发条件:\n  调价幅度:", hint: "触发条件必须量化,不能写'销量下滑时'" },
    { kind: "textarea", label: "毛利 & ROI 结论", placeholder: "保守方案售价:¥  毛利率:%  月利润估算:¥\n基准方案售价:¥  毛利率:%  月利润估算:¥\n乐观方案售价:¥  毛利率:%  月利润估算:¥\n\n最优推荐方案及理由:", hint: "三方案对比是必要的,评委看重多情景分析能力" },
    { kind: "checklist", label: "毛利报表完整性自检", items: ["成本结构包含 7 项(产品/包装/头程/FBA/佣金/广告/退货)","三方案售价区间有明确区分(不只改售价)","每个方案的广告费投入比例有差异","月利润估算包含低/中/高三个月销量假设","FBA 费用使用亚马逊 FBA 计算器真实报价","报表附有数据来源说明"] },
  ],
  "报告撰写": [
    { kind: "textarea", label: "执行摘要(≤200字)", placeholder: "本报告聚焦于……\n核心发现：……\n主要建议：……", hint: "执行摘要须独立可读,不依赖正文" },
    { kind: "checklist", label: "报告自检清单", items: ["有封面页与目录","所有论点有数据支撑","图表均有标题与来源","语言无口语化表达","结论每条有可量化目标","字数达到要求"] },
    { kind: "textarea", label: "结论与建议", placeholder: "结论①:\n  数据支撑:\n  行动建议:\n  目标指标:\n\n结论②:\n  数据支撑:\n  行动建议:\n  目标指标:", hint: "建议须可衡量，避免'提升销量'等模糊表述" },
  ],
  "竞赛任务": [
    { kind: "textarea", label: "赛题精读与维度拆解", placeholder: "赛题核心考察点:\n1.\n2.\n3.\n\n评分维度权重分析:\n\n本队差异化破题角度:", hint: "读懂评分维度是竞赛制胜的第一步" },
    { kind: "table", label: "分工与里程碑计划", columns: ["任务模块","负责人","完成节点","交付物"], rows: 6, hint: "明确分工减少重复劳动" },
    { kind: "textarea", label: "核心洞察(答辩点睛之笔)", placeholder: "洞察①(反直觉/高价值):\n  数据依据:\n  商业意义:\n\n洞察②:", hint: "1-2 个深度洞察比 10 个浅层结论更能打动评委" },
    { kind: "checklist", label: "答辩 PPT 完成度检查", items: ["封面(含赛事名称/队名/日期)","执行摘要���","市场分析部分(3-5页)","竞品与机会分析(3-5页)","商业方案与财务预测(3-5页)","结论与风险(2页)","备问库(Q&A准备 ≥ 10 问)"] },
    { kind: "textarea", label: "主体分析内容大纲(≥ 5000 字)", placeholder: "第一章 市场机会与选品逻辑\n  1.1 ...\n  1.2 ...\n\n第二章 竞品格局与差异化策略\n\n第三章 选品与 P&L 验证\n\n第四章 运营方案与增长路径\n\n第五章 风险分析与应对", hint: "先建框架再填内容,字数不足 5000 字是竞赛常见扣分项" },
    { kind: "checklist", label: "内部预讲与修改检查", items: ["完成至少 1 次全流程内部预讲","记录评委模拟提问并准备回答","PPT 视觉一致性检查(配色/字体/图表)","数据来源与引用全部核实","每张 PPT 的「金句/结论」明确标出","时间控制:正式讲解 ≤ 8 分钟"] },
  ],
  "关键词研究": [
    { kind: "table", label: "核心词库(前20词)", columns: ["关键词","月搜索量","竞争指数","机会值","搜索意图"], rows: 20, hint: "完整词库须 ≥ 200 词，此处填写 Top 20 作为摘要" },
    { kind: "textarea", label: "搜索意图分类说明", placeholder: "购买意图词(示例):\n- '宠物饮水机推荐' → 购买决策阶段\n\n信息意图词(示例):\n- '宠物饮水机怎么用' → 用户教育阶段\n\n导航意图词(示例):", hint: "意图分类影响广告匹配策略" },
    { kind: "textarea", label: "关键词策略规划", placeholder: "A级词(主攻):\n  投放方式:\n  出价策略:\n\nB级词(测试):\n  投放方式:\n\nC级词(长尾布局):", hint: "A/B/C 分级是 PPC 预算分配的依据" },
  ],
  "店铺运营": [
    { kind: "table", label: "店铺健康度 KPI 诊断", columns: ["指标","当前值","平台基准","状态(达标/预警/危险)","改进建议"], rows: 6, hint: "必填:ODR/LR/VTR/晚发率/退款率/评分" },
    { kind: "textarea", label: "转化漏斗流失原因分析", placeholder: "曝光→点击流失率:_%\n  主要原因:\n  优化方向:\n\n点击→加购流失率:_%\n  主要原因:\n  优化方���:\n\n加购→购买流失率:_%\n  主要原因:\n  优化方向:", hint: "找到最大流失环节是提升转化的关键" },
    { kind: "textarea", label: "增长行动计划(3条带KPI)", placeholder: "行动①:\n  目标KPI:\n  截止时间:\n  负责方:\n\n行动②:\n\n行动③:", hint: "KPI 须可衡量,如'CTR 提升至 0.8%'" },
  ],
}

// Per-subtask workspace AI hints (indexed by subtask position 0-based)
const WORKSPACE_HINTS_BY_TYPE: Record<TaskType, string[]> = {
  "市场分析": [
    "至少引用 3 个来源(Jungle Scout / Helium 10 / 平台官方数据),注明工具名称与抓取日期,否则「数据来源完整性」维度最高扣 10 分。",
    "GMV 和搜索量是两个不同指标,须分别填写。同比增速建议用百分比(如 +32% YoY),而非描述性语言,评阅老师优先看数字。",
    "痛点洞察建议直接引用买家评论原文(1-2 句),再提炼归纳,比纯总结更有说服力,可提高「需求与痛点洞察」维度得分。",
    "建议每条行动建议都带 KPI 目标(如「30 天内完成 50 个候选品初筛」),含时限的建议比泛泛而谈多得 3-5 分。",
  ],
  "商品机会": [
    "三轴评分要量化(1-10 分制),不能只写「高/中/低」。评分依据要写在备注列或 footnote 中,否则评阅时无法验证。",
    "差异化方向的「实现路径」要具体到操作层(如「在主图中增加防水等级标识」),不能写「提高产品质量」这类泛论。",
    "合规核查栏必须全部打勾或注明「不适用」+理由,空白项会被评阅老师直接标记为「遗漏扣分」。",
    "TOP1 推荐要写 3 条具体选择理由,且每条理由都要对应三轴评分中的一个维度数据,形成闭环论证。",
    "风险应对预案中的「预警指标」要量化(如「当 CR3 从 45% 升至 60% 时视为竞争加剧」),不能只写「市场竞争加剧」。预案是「风险评估」维度(权重 15%)的核心评分依据,空白直接失分。",
  ],
  "选品实训": [
    "三个意图簇分别命名:「核心购买词簇」「场景使用词簇」「长尾比较词簇」。每簇 ≥ 5 个词,月搜索量填实际数值(可用 Helium 10 导出)。",
    "BSR Top 10 候选池中「月销量」可用工具估算(JS Extension 或 Helium 10 Xray),不能填「未知」。毛利估算至少精确到个位(¥)。",
    "P&L 表每行必须有「数据来源」,FBA 费用可去亚马逊 FBA 计算器查实际报价。只填数字不写来源的 P&L 通常得低分。",
    "结论报告字数目标 ≥ 800 字,右下角实时显示,达到目标后变绿。推荐结构:① 最终推荐品(写明 ASIN/月销估算/评分均值) → ② 差异化切入点(直接指出 CR3 竞品评论的具体痛点并说明如何规避) → ③ 首批测款计划(SKU 数/备货量区间/定价策略) → ④ 风险提示(合规核查结果/季节性高峰/资金占用测算)。每部分引用前三步真实数据,结论须与 P&L 测算的毛利区间形成闭环。",
    "雷达图必须是三维(需求强度/竞争烈度/利润空间),轴刻度 1-10 并注明各轴数据来源。趋势折线图须覆盖近 90 天,横轴为日期,纵轴为搜索量。两张图都是「数据可视化」维度的主要评分依据。",
  ],
  "竞品分析": [
    "直接竞品的「物流方式」列填 FBA/FBM/FBT 等具体缩写,不要填「快递」。覆盖 ≥ 10 个才算完整(评分标准明确要求)。",
    "Top 5 竞品对比矩阵中「Listing 质量」可用 Listing 质量评分工具量化(1-10 分),比���观描述更有��服力。",
    "SWOT 每个象限 ≥ 2 条,且 W/T 象限的内容不能与 S/O 矛盾。建议先填数据再写 SWOT,避免先验偏见。",
    "策略要写「来源竞品 ASIN」和「可落地操作」,如「参考 B07XX 的 A+ 页面视频布局,添加同类场景视频」,而非「做好 A+ 内容」。",
    "雷达图和气泡图是「数据可视化」维度(权重 10%)唯二的评分依据。雷达图五维:价格/评分/Listing 质量/物流/广告曝光;气泡图三轴:X=价格,Y=评分,气泡大小=月销量估算。缺任何一张直接失去该维度大部分分数。",
  ],
  "定价与利润": [
    "成本结构须包含:产品成本/内箱外箱/头程运费/FBA 费/平台佣金/广告费/退货损耗率共 7 项。缺任何一项该维度最多得 80%。",
    "价格带分析至少覆盖低/中/高 3 个区间,每区间写「竞品数量」和「市场份额估算」。份额可用评论数比例替代月销量估算。",
    "动态定价触发条件必须量化:不能写「销量下滑时」,要写「连续 7 天日均销量低于 X 件时」,这是该维度高分的核心要求。",
    "三方案(保守/基准/乐观)的差异要体现在售价区间和广告费投入上,不能只改售价。毛利率建议保留 2 位小数。",
    "毛利报表自检是提交前最后一道防线。「FBA 费用使用真实报价」一项最常被忽视,直接估算的数字在批阅时会被标注为「数据来源不可靠」,影响「成本结构拆解」维度得分(权重 25%)。",
  ],
  "报告撰写": [
    "执行摘要须「独立可读」:读者只看摘要就能知道核心结论和主要建议。不能写「详见正文」,这是最常见扣分原因。",
    "自检清单每一项未达标都会影响对应评分维度,建议全部勾选后再进入提交流程。「字数达到要求」由字数计数器自动判断。",
    "每条建议必须写「可量化目标」,如「将 CTR 从 0.6% 提升至 0.9%,目标时间 30 天内」。「提升销量」等表述不得分。",
  ],
  "竞赛任务": [
    "赛题维度拆解要写「评分权重」,权重最高的维度优先投入时间。历届经验:「洞察力」维度评委差异化打分最大,是拉开分差的关键。",
    "分工表要明确「交付物」(不是「负责」而是「提交什么文件/产出」),否则内部协作容易出现断层。里程碑节点建议倒排(从截止日往前推)。",
    "核心洞察要「反直觉」或「高价值」:不要写「该类目市场大」,要写「该类目 CR5 仅 18%,低于行业均值 12 个百分点,表明头部效应弱、新进入者机会窗口存在」。",
    "答辩 PPT 「备问库」是最容易被忽视的高分项。历届评委问题集中在:数据来源真实性、财务测算假设、竞争壁垒、风险应对,建议各准备 2-3 个回答。",
    "主体分析 ≥ 5000 字是多数赛事的硬性要求。建议「先骨架后填充」:用章节标题先把逻辑链拉通,再逐节填写内容。字数实时显示在输入框下方,达到 5000 字后颜色变绿。",
    "内部预讲的核心价值是「暴露逻辑漏洞」,而不是走流程。记录下同学的每一个「为什么」问题,这些就是评委可能追问的方向。PPT 时间控制 ≤ 8 分钟是大多数竞赛的标准,超时会影响评委体验评分。",
  ],
  "关键词研究": [
    "Top 20 词摘要表是整个词库的「名片」,月搜索量和机会值要用真实工具数据,不能估算。完整词库(≥200词)须作为附件。",
    "意图分类的判断逻辑要写明(如「含'推荐''哪款''哪个'的词判定为购买意图」),没有判断逻辑的分类不得「搜索意图分类」维度满分。",
    "A级词出价策略建议写「精确匹配 + 自动匹配(低竞价)」组合,B级词写「词组匹配+否定词」,策略越具体评分越高。",
  ],
  "店铺运营": [
    "KPI 诊断表中「状态」列必须根据平台基准判断(如亚马逊 ODR 基准 ≤ 1%),不能写「正常」等主观描述,要写「达标」或「预警(超基准 X%)」。",
    "转化漏斗每个环节的「优化方向」要对应具体的 Listing 元素(如「加购→购买流失高 → 检查是否缺少 Q&A 和对比图」),不能写泛论。",
    "增长行动 KPI 要写「当前值→目标值」的格式,如「CTR: 0.5% → 0.8%(+60%)」,并说明达成路径(优化主图+标题)。",
  ],
}

// Word count threshold for specific subtasks that have minimum word requirements
const WORD_COUNT_THRESHOLD: Partial<Record<TaskType, Record<number, number>>> = {
  "选品实训": { 3: 800 },   // subtask index 3: 选品结论报告 ≥ 800 字
  "报告撰写": { 0: 200 },   // subtask index 0: 执行摘要 ≥ 200 字
  "竞赛任务": { 2: 200, 4: 5000 },   // subtask index 2: 核心洞察 ≥ 200 字; index 4: 主体分析 ≥ 5000 字
  "市场分析": { 2: 100 },   // subtask index 2: 痛点洞察 ≥ 100 字
  "竞品分析": { 2: 150, 3: 150 },  // SWOT ≥ 150 字; 策略 ≥ 150 字
  "定价与利润": { 2: 120, 3: 80 }, // 动态定价规则 ≥ 120 字; 毛利结论 ≥ 80 字
}

// ─── Snippet quick-insert templates (per type × subtask position) ──────────────
// Short sentence starters the student can click to append to the textarea
const SNIPPETS_BY_TYPE: Partial<Record<TaskType, string[][]>> = {
  "市场分析": [
    ["数据来源:Jungle Scout,抓取日期:", "数据来源:Helium 10 Magnet,抓取日期:", "数据来源:平台官方数据,URL:"],
    ["GMV 约 $___M(来源:___)", "近 12 个月搜索量趋势:+__% YoY", "市场增速参考区间:___% ~ ___%"],
    ["Top 3 痛点:\n①(评论原文:\"___\")\n②\n③", "用户核心诉求:___,占评论总量约___%"],
    ["建议行动①:在 30 天内___,目标:___", "建议行动②:___,可量化指标:___"],
  ],
  "选品实训": [
    ["意图簇①:核心购买词 | 代表词:___ | 月搜索量:___", "意图簇②:场景使用词 | 代表词:___", "意图簇③:长尾比较词 | 代表词:___"],
    ["ASIN:___ | 月销量估:___件 | 评分:___ | 价格:$___ | FBA费:$___", "BSR排名:___ | 近90天趋势:___"],
    ["产品成本:¥___ | 头程:¥___ | FBA:¥___ | 佣金:¥___ | 广告:¥___ | 毛利率:___%"],
    ["一、最终推荐品:___(ASIN:___),月销量约___件,评分___,价格带$___\n二、差异化切入点:针对「___」差评(占___%)，采用___方案\n三、首批测款计划:___个SKU,备货___件,定价$___"],
    ["已截图:近90天搜索量趋势折线图(来源:Helium10)", "已制作机会雷达图:需求强度_/10 · 竞争烈度_/10 · 利润空间_/10"],
  ],
  "竞品分析": [
    ["ASIN:___ | 品牌:___ | 价格:$___ | 评分:___ | 月销量:___件 | FBA/FBM:___"],
    ["综合评分算法:Listing质量_×0.3 + 主图评级_×0.2 + 广告曝光_×0.2 + 售后_×0.3"],
    ["S(优势):___,数据依据:___\nW(劣势):___\nO(机会):___,依据:___\nT(威胁):___"],
    ["策略①:参考竞品___(ASIN:___)的___,可落地操作:___"],
  ],
  "定价与利润": [
    ["产品成本:¥___ | 内箱外箱:¥___ | 头程:¥___ | FBA费:¥___ | 平台佣金:¥___ | 广告费:¥___ | 退货率___%"],
    ["低价带($___~$___):___个竞品 | 中价带:___个 | 高价带:___个"],
    ["大促前7天:当排名进入类目Top___时,将售价降低___%\n旺季(11-1月):当日均销量超___件时,售价上调___%\n清库存:当库龄超___天时,折扣___% 直至清仓"],
    ["保守方案:售价$___ 毛利率__% 月利润¥___\n基准方案:售价$___ 毛利率__% 月利润¥___\n乐观方案:售价$___ 毛利率__% 月利润¥___"],
  ],
  "关键词研究": [
    ["关键词:___ | 月搜索量:___ | 竞争指数:___ | 机会值:___ | 意图:购买型/信息型"],
    ["购买意图词判断依据:含「推荐/哪款/哪个/性价比」的词\n信息意图词:含「怎么用/攻略/教程」的词"],
    ["A��词(主攻):精确+��泛匹配,出价$___\nB级词(测试):词组匹配+否定词,出价$___\nC级词(长尾布局):自动匹配低竞价,出价$___"],
  ],
  "店铺运营": [
    ["ODR:___%(基准≤1%):___ | LR:___%(基准≤2%):___ | VTR:___%(基准≥95%):___"],
    ["曝光→点击流失:__% | 主因:___ | 优化:优化主图/标题\n点击→加购流失:__% | 主因:___ | 优化:___\n加购→购买流失:__% | 主因:___ | 优化:___"],
    ["行动①:___,目标KPI:CTR ___% → ___%,截止:___\n行动②:___,目标KPI:___,截止:___\n行动③:___,目标KPI:___,截止:___"],
  ],
}

// ─── Example data for one-click fill demo ────────────────────────────────────
// Used by the "示例参考" button in workspace — fills the block with a high-quality sample
const EXAMPLE_FILL_BY_TYPE: Partial<Record<TaskType, string[]>> = {
  "市场分析": [
    "- Jungle Scout · 2024-11-15 · Amazon US 宠物用品类目\n- Helium 10 Magnet · 2024-11-14 · 搜索量趋势(关键词:smart pet water fountain)\n- Amazon Brand Analytics · 2024-11-13 · 频繁一起购买数据",
    "",  // table, skip
    "① 噪音过大(占1星差评62%):\"The pump is too loud at night\" — 用户对产品运作噪音敏感,尤其睡眠环境\n② 过滤效果不持久(占差评38%):\"Filter needs replacing every 2 weeks\" — 滤芯寿命短导致复购成本高\n③ 安装复杂(占差评24%):\"Instructions are confusing\" — 说明书不清晰,上手门槛高",
    "结论:「静音宠物智能饮水机」是 Amazon 美国站近期高增长机会,CR3=47% 低于均值,新入场窗口开放。\n\n行动建议①:在 30 天内完成 Top 5 竞品的差评聚类分析,聚焦「噪音」和「滤芯寿命」两大痛点形成差异化方案,目标差评率控制在 < 3%。\n行动建议②:基于月搜索量 48,000 的核心词「smart pet water fountain」制定 PPC 策略,首月预算 $800,ACOS 目标 < 25%。",
  ],
  "选品实训": [
    "",  // table
    "",  // table
    "",  // table
    "一、最终推荐品\n推荐 ASIN B09X2R5QJP(「PetSafe Drinkwell 2 Gallon」),月销量约 4,200 件,评分 4.3★,价格带 $29.99–$39.99,FBA 月均费 $6.8。该品 CR3 排名第一,但近 90 天新进入者增加 3 个,竞争有所加剧。\n\n二、差异化切入方案\n核心差异化方向:「超低噪音(<30dB)+ 90天长效滤芯」\n- 市场现有产品噪音普遍在 35-45dB,62% 差评提及噪音问题\n- 采用双层减震泵架设计,噪音降至 ≤30dB\n- 滤芯由行业平均 14 天延长至 90 天(抗菌活性炭改性工艺)\n\n三、首批测款计划\n- SKU 数量:1 个(专注核心需求,避免首批过于分散)\n- 建议备货:300 件(覆盖 45–60 天销售周期,含 FBA 入仓备货期)\n- 定价策略:$34.99(低于 CR1 的 $39.99,高于 CR3 的 $29.99,卡中价带)\n\n四、风险提示\n- 合规:已通过亚马逊 FBA 限制品核查,无锂电池要求\n- 季节性:宠物类目 Q4(10–12月)有礼品季需求,需提前 45 天入仓\n- 资金占用:首批 300 件×产品成本 $8.5 = $2,550,加上头程 $450,总投入约 $3,000",
    "",  // checklist
  ],
  "竞品分析": [
    "",  // table
    "",  // table
    "S(优势):\n- 技术差异化:噪音控制 ≤30dB,低于市场均值 40dB(来源:实测对比)\n- 滤芯寿命 90 天,是行业平均 14 天的 6 倍\n\nW(劣势):\n- 品牌知名度为零,起步无 Review\n- 首批量小,FBA 头程运费成本偏高\n\nO(机会):\n- 「静音」差评需求未被头部品牌解决(CR1 差评占 62% 为噪音)\n- 宠物智能硬件 2024 Q3 市场规模 +38% YoY\n\nT(威胁):\n- CR1 随时可迭代产品解决噪音问题\n- 滤芯专利风险:需在上市前完成 Freedom to Operate 检索",
    "策略①:来源竞品 B09X2R5QJP(CR1)的「噪音投诉」痛点\n  可落地操作:在主图第 3 张加入「<30dB 静音认证」对比图标,并在 A+ 页面添加分贝测试视频(30s)\n\n策略②:参考竞品 B08MBZ6LDQ 的「滤芯到期提醒」功能\n  可落地操作:开发 APP 滤芯寿命提醒功能,通过邮件+APP Push 双通道提醒,提升复购率\n\n策略③:来源 Top 3 卖家统一使用的「白色+透明」配色方案\n  可落地操作:推出「黑色哑光」配色版本,瞄准设计感用户细分群体,溢价 $5",
    "",  // checklist
  ],
}

// ─── Pre-submission self-check items (per task type) ───────────────────────────
const SUBMIT_SELF_CHECK: Record<TaskType, string[]> = {
  "市场分析":   ["数据来源不少于 3 个,均注明工具名称与抓取日期","核心指标(GMV/搜索量)用数值而非描述性语言","需求与痛点引用了真实买家评论原文","行动建议带有可量化的 KPI 目标"],
  "商品机会":   ["机会三轴评分均已量化(1-10分),非「高/中/低」","差异化方向已写明具体实现路径","合规风险核查每项已处理(勾选或注明不适用)","TOP1 推荐有 3 条对应三轴数据的理由"],
  "选品实训":   ["三个意图簇均已命名且各含 ≥5 个词","BSR 候选池月销量已用工具估算(非「未知」)","P&L 每行有数据来源,FBA 费用使用计算器真实报价","选品结论报告字数 ≥ 800 字","雷达图与趋势图均已插入报告"],
  "竞品分析":   ["直接竞品 ≥10 个,物流方式用 FBA/FBM/FBT 缩写","SWOT 每象限 ≥2 条且有数据支撑","策略提炼写明「来源竞品 ASIN」和「可落地操作」","雷达图与气泡图均已制作并插入"],
  "定价与利润": ["成本结构含 7 项(含退货损耗率)","三方案(保守/基准/乐观)售价区间有明确区分","动态定价触发条件已量化(非「销量下滑时」)","毛利率已保留 2 位小数"],
  "报告撰写":   ["执行摘要独立可读,不含「详见正文」","所有论点有数据支撑","每条建议有可衡量的 KPI 目标","字数达到要求(自检通过)"],
  "竞赛任务":   ["赛题评分维度权重已拆解","核心洞察属于「反直觉/高价值」而非泛泛结论","答辩 PPT ≥20 页且含备问库","主体分析文字 ≥5000 字"],
  "关键词研究": ["Top 20 摘要表月搜索量和机会值来自真实工具数据","意图分类附有判断逻辑说明","A/B/C 分级策略写明具体出价数字"],
  "店铺运营":   ["KPI 诊断每项写「达标/预警(超基准X%)」而非「正常」","转化漏斗每环节流失原因对应具体 Listing 元素","增长行动 KPI 写「当前值→目标值」格式"],
}

// Debrief recommendations — what to study/do next after completing each type
const DEBRIEF_BY_TYPE: Record<TaskType, { title: string; desc: string; link: string }[]> = {
  "市场分析":   [{ title: "商品机会分析", desc: "将市场分析结论转化为具体选品机会", link: "/student/tasks?type=opportunity" }, { title: "竞品分析", desc: "深挖目标类目竞争格局", link: "/student/tasks?type=competitor" }],
  "商品机会":   [{ title: "选品实训", desc: "对筛选出的候选品做完整 P&L 测算", link: "/student/tasks?type=picking" }, { title: "定价与利润", desc: "验证候选品的盈利可行性", link: "/student/pricing" }],
  "选品实训":   [{ title: "定价与利润", desc: "基于 P&L 结果做完整定价建模,验证推荐品盈利可行性", link: "/student/pricing" }, { title: "关键词洞察与 Listing 实训", desc: "用推荐品的核心卖点提炼关键词,进入 Listing 写作阶段", link: "/student/tasks?type=keyword" }],
  "竞品分析":   [{ title: "商品机会分析", desc: "结合竞品差距找选品机会", link: "/student/tasks?type=opportunity" }, { title: "店铺运营", desc: "将竞品优势转化为自己的运营策略", link: "/student/tasks?type=store" }],
  "定价与利润": [{ title: "定价实训工具", desc: "在定价实��模块验证多方案", link: "/student/pricing" }, { title: "店铺运营", desc: "用动态定价规则指导实际运营决策", link: "/student/tasks?type=store" }],
  "报告撰写":   [{ title: "选品实训", desc: "将报告写作规范应用于完整选品报告", link: "/student/tasks?type=picking" }, { title: "案例库 · 优秀报告", desc: "参考高分报告结构与行文规范", link: "/student/cases" }],
  "竞赛任务":   [{ title: "市场分析实训", desc: "补充竞赛所需的数据分析深度", link: "/student/tasks?type=market" }, { title: "案例库 · 竞赛专区", desc: "研究历届竞赛获奖案例", link: "/student/cases" }],
  "关键词研究": [{ title: "店铺运营实训", desc: "将关键词策略落地为 PPC 广告计划", link: "/student/tasks?type=store" }, { title: "选品实训", desc: "用关键词洞察优化选品方向", link: "/student/tasks?type=picking" }],
  "店铺运营":   [{ title: "定价实训工具", desc: "用运营数据驱动动态定价决策", link: "/student/pricing" }, { title: "竞品分析", desc: "从运营角度重新审视竞品差距", link: "/student/tasks?type=competitor" }],
}

// ─── Page ──────────────────────────────────────────────────────────────────────
export default function TasksPage() {
  // mutable task list (for subtask toggle)
  const [tasks, setTasks] = useState<TaskRow[]>(INITIAL_TASKS)

const [tab,        setTab]        = useState<string>("inprogress")
  const [typeKey,    setTypeKey]    = useState<string>("all")
  const [query,      setQuery]      = useState("")
  const [selectedId, setSelectedId] = useState<string>("T-1042")
  const [sortKey,    setSortKey]    = useState<SortKey>(null)
  const [sortDir,    setSortDir]    = useState<SortDir>("desc")

// dialog / sheet state
  const [showRubric,    setShowRubric]    = useState(false)
  const [showDelay,     setShowDelay]     = useState(false)
  const [showSubmit,    setShowSubmit]    = useState(false)
  const [showReview,    setShowReview]    = useState(false)
  const [showWork,      setShowWork]      = useState(false)
  const [showFilter,    setShowFilter]    = useState(false)
  const [showWorkspace, setShowWorkspace] = useState(false)

// form state
  const [delayDays,    setDelayDays]    = useState("3")
  const [delayReason,  setDelayReason]  = useState("")
  const [submitNote,   setSubmitNote]   = useState("")

// workspace state — flat key-value store, key = `${taskId}-${subtaskIdx}[-row-col|-check-idx]`
  // Always initialise with empty objects so SSR and client render identically (hydration-safe).
  // The persisted values are loaded from localStorage only inside useEffect (client-only).
  const [workspaceData,     setWorkspaceData]     = useState<Record<string, string>>({})
  const [workspaceTab,      setWorkspaceTab]       = useState("0")
  // dynamic table row counts: key = `${taskId}-${subtaskIdx}-rows`
  const [tableRowCounts,    setTableRowCounts]     = useState<Record<string, number>>({})
  // last autosave timestamp
  const [lastSaved, setLastSaved] = useState<number | null>(null)
  const saveTimerRef = useRef<ReturnType<typeof setTimeout> | null>(null)
  // Hydration-safe restore: read localStorage only after the component mounts on the client.
  useEffect(() => {
    try {
      const data = localStorage.getItem("ws_data")
      if (data) setWorkspaceData(JSON.parse(data))
    } catch { /* private browsing or corrupt data — silently ignore */ }
    try {
      const rows = localStorage.getItem("ws_rows")
      if (rows) setTableRowCounts(JSON.parse(rows))
    } catch { /* private browsing or corrupt data — silently ignore */ }
  }, []) // eslint-disable-line react-hooks/exhaustive-deps

// per-task state
  const [submitted,     setSubmitted]     = useState<Set<string>>(new Set())
  const [delayApplied,  setDelayApplied]  = useState<Set<string>>(new Set())

// filter popover
  const [filterPlatforms, setFilterPlatforms] = useState<string[]>([])
  const [filterDifficulty, setFilterDifficulty] = useState<string[]>([])

// AI feedback thumbs (per suggestion, per task)
  const [aiFeedback, setAiFeedback] = useState<Record<string, "up" | "down" | null>>({})

// pre-submission self-check state: key = `${taskId}-${checkIdx}` → boolean
  const [selfCheck, setSelfCheck] = useState<Record<string, boolean>>({})
  // whether "示例参考" has been shown for the current subtask
  const [exampleVisible, setExampleVisible] = useState<Record<string, boolean>>({})

const toast = useToast()
  const panelRef = useRef<HTMLDivElement>(null)
  const reviewSim = useReviewSim()

const typeLabel = typeLabelFromKey(typeKey)

// Re-select first visible item when tab changes
  useEffect(() => {
    const visible = tasks.filter(t => tab === "all" || t.status === tab)
    if (visible.length > 0 && !visible.find(t => t.id === selectedId)) {
      setSelectedId(visible[0].id)
    }
  }, [tab]) // eslint-disable-line react-hooks/exhaustive-deps

// Sort helper
  const handleSort = (key: SortKey) => {
    if (sortKey === key) setSortDir(d => d === "asc" ? "desc" : "asc")
    else { setSortKey(key); setSortDir("desc") }
  }

const SortIcon = ({ k }: { k: SortKey }) => {
    if (sortKey !== k) return <ChevronsUpDown className="ml-1 h-3 w-3 opacity-40" />
    return sortDir === "asc" ? <SortAsc className="ml-1 h-3 w-3" /> : <SortDesc className="ml-1 h-3 w-3" />
  }

const selected = tasks.find(t => t.id === selectedId) ?? tasks[0]
  const isSubmittable = selected.status === "inprogress" && selected.progress >= 80
  const isOverdue  = selected.status === "overdue"
  // isDone: show completed-state UI for tasks that have been scored (includes contest tasks that have scores)
  const isDone     = selected.status === "done" || (selected.status === "contest" && selected.score !== null)
  const hasSubmitted = submitted.has(selected.id)
  const hasDelay     = delayApplied.has(selected.id)

// toggle subtask done state
  const toggleSubtask = useCallback((taskId: string, name: string) => {
    setTasks(prev => prev.map(t => {
      if (t.id !== taskId) return t
      const newSubs = (t.subtasks ?? []).map(s => s.name === name ? { ...s, done: !s.done } : s)
      const done = newSubs.filter(s => s.done).length
      const total = newSubs.length
      const newProgress = Math.round((done / total) * 100)
      return { ...t, subtasks: newSubs, progress: newProgress }
    }))
  }, [])

const ai = useAIDraft(selected.type)
  const countdownDisplay = useCountdown(selected.due)

// reset ai draft when switching tasks
  useEffect(() => { ai.reset() }, [selected.id]) // eslint-disable-line react-hooks/exhaustive-deps

// debounced autosave to localStorage
  useEffect(() => {
    if (saveTimerRef.current) clearTimeout(saveTimerRef.current)
    saveTimerRef.current = setTimeout(() => {
      try {
        localStorage.setItem("ws_data", JSON.stringify(workspaceData))
        localStorage.setItem("ws_rows", JSON.stringify(tableRowCounts))
        setLastSaved(Date.now())
      } catch { /* quota exceeded or private browsing */ }
    }, 800)
    return () => { if (saveTimerRef.current) clearTimeout(saveTimerRef.current) }
  }, [workspaceData, tableRowCounts]) // eslint-disable-line react-hooks/exhaustive-deps

// Counts
  const mainTabs = [
    { key: "all",        label: "全部任务", count: tasks.length },
    { key: "inprogress", label: "进行中",   count: tasks.filter(t => t.status === "inprogress").length },
    { key: "pending",    label: "待提交",   count: tasks.filter(t => t.status === "pending").length },
    { key: "done",       label: "已完成",   count: tasks.filter(t => t.status === "done").length },
    { key: "overdue",    label: "逾期",     count: tasks.filter(t => t.status === "overdue").length },
    { key: "contest",    label: "竞赛",     count: tasks.filter(t => t.status === "contest").length },
  ]

const typeCounts = useMemo(() => {
    const counts: Record<string, number> = { all: tasks.length }
    taskTypeCategories.slice(1).forEach(cat => {
      const lbl = typeLabelFromKey(cat.key)
      counts[cat.key] = lbl ? tasks.filter(t => t.type === lbl).length : 0
    })
    return counts
  }, [tasks])

const overdueList = tasks.filter(t => t.status === "overdue")
  const todayDeadline = tasks.filter(t => t.status === "inprogress" && (t.due.includes("今日") || t.dueSub.includes("6 小时")))
  const filterCount = filterPlatforms.length + filterDifficulty.length

// progress bar color
  const progressColor = (t: TaskRow) => {
    if (t.status === "overdue")  return "[&>div]:bg-destructive"
    if (t.status === "done")     return "[&>div]:bg-emerald-500"
    if (t.status === "pending")  return "[&>div]:bg-emerald-500"
    if (t.status === "contest")  return "[&>div]:bg-violet-500"
    return ""
  }

return (
    <div className="flex flex-col gap-5 px-4 py-5 lg:px-6 lg:py-6">

{/* Toast notification */}
      {toast.msg && (
        <div className="fixed right-5 top-5 z-50 flex items-center gap-2.5 rounded-xl border border-emerald-500/30 bg-background px-4 py-3 text-sm font-medium shadow-lg transition-all">
          <CheckCircle2 className="h-4 w-4 text-emerald-500" />
          {toast.msg}
        </div>
      )}

<StudentPageHeader
        icon={ClipboardList}
        tone="amber"
        title="实训任务中心"
        description="统一管理学习任务、提交作业、查看评分与 AI 建议,不错过任何一次实训机会"
        badge={{ text: `${overdueList.length} 项逾期`, tone: "warning" }}
        meta={[
          { icon: RefreshCw,     label: "最后同步",  value: "刚刚" },
          { icon: CalendarClock, label: "当前周期",  value: "第 17 周 · 跨电 22-1" },
          { icon: Target,        label: "完成目标",  value: `本周 ${tasks.filter(t=>t.status==="done").length} / ${tasks.filter(t=>t.status!=="contest").length} 项` },
        ]}
        kpis={[
          { label: "进行中",     value: tasks.filter(t=>t.status==="inprogress").length, hint: `${todayDeadline.length} 项今日截止`, tone: "flat" },
          { label: "待提交",     value: tasks.filter(t=>t.status==="pending").length,    hint: "AI 初评进行中" },
          { label: "逾期",       value: overdueList.length,                              hint: "可申请延期", tone: "down" },
          { label: "本学期完成", value: tasks.filter(t=>t.status==="done").length,       hint: "+3 环比上周", tone: "up" },
        ]}
        actions={
          <div className="flex flex-wrap items-center gap-2">
            <div className="relative">
              <Search className="pointer-events-none absolute left-3 top-1/2 h-4 w-4 -translate-y-1/2 text-muted-foreground" />
              <Input
                value={query}
                onChange={e => setQuery(e.target.value)}
                placeholder="搜索任务编号或标题..."
                className="h-9 w-56 pl-9 md:w-64"
              />
            </div>
            {/* Advanced filter popover */}
            <Popover open={showFilter} onOpenChange={setShowFilter}>
              <PopoverTrigger asChild>
                <Button variant="outline" size="sm" className="relative">
                  <Filter className="mr-1.5 h-4 w-4" />
                  高级筛选
                  {filterCount > 0 && (
                    <span className="absolute -right-1.5 -top-1.5 flex h-4 w-4 items-center justify-center rounded-full bg-primary text-[9px] font-semibold text-primary-foreground">
                      {filterCount}
                    </span>
                  )}
                </Button>
              </PopoverTrigger>
              <PopoverContent className="w-72 p-4" align="end">
                <div className="space-y-4">
                  <div>
                    <p className="mb-2 text-sm font-medium">平台</p>
                    <div className="grid grid-cols-2 gap-2">
                      {["Amazon","Shopee","TikTok","Temu"].map(p => (
                        <div key={p} className="flex items-center gap-2">
                          <Checkbox
                            id={`fp-${p}`}
                            checked={filterPlatforms.includes(p)}
                            onCheckedChange={v => setFilterPlatforms(prev =>
                              v ? [...prev, p] : prev.filter(x => x !== p)
                            )}
                          />
                          <Label htmlFor={`fp-${p}`} className="text-sm font-normal cursor-pointer">{p}</Label>
                        </div>
                      ))}
                    </div>
                  </div>
                  <div>
                    <p className="mb-2 text-sm font-medium">难度</p>
                    <div className="flex gap-2">
                      {["1","2","3","4","5"].map(d => (
                        <button
                          key={d}
                          onClick={() => setFilterDifficulty(prev =>
                            prev.includes(d) ? prev.filter(x => x !== d) : [...prev, d]
                          )}
                          className={`flex h-7 w-7 items-center justify-center rounded-md border text-xs font-medium transition-colors ${
                            filterDifficulty.includes(d)
                              ? "border-primary bg-primary/10 text-primary"
                              : "border-border hover:border-primary/50"
                          }`}
                        >
                          {"★".repeat(Number(d))}
                        </button>
                      ))}
                    </div>
                  </div>
                  {filterCount > 0 && (
                    <Button variant="ghost" size="sm" className="w-full text-xs"
                      onClick={() => { setFilterPlatforms([]); setFilterDifficulty([]) }}>
                      <X className="mr-1 h-3 w-3" />
                      清除全部筛选
                    </Button>
                  )}
                </div>
              </PopoverContent>
            </Popover>
          </div>
        }
      />

{/* 逾期警告条 */}
      {overdueList.length > 0 && (
        <div className="flex items-start gap-3 rounded-xl border border-destructive/30 bg-destructive/8 px-4 py-3 text-sm">
          <AlertTriangle className="mt-0.5 h-4 w-4 shrink-0 text-destructive" />
          <div className="flex-1 min-w-0">
            <p className="font-semibold text-destructive">{overdueList.length} 项任务已逾期</p>
            <p className="mt-0.5 text-xs text-muted-foreground line-clamp-1">
              {overdueList.map(t => `「${t.title.slice(0, 14)}…」`).join(" · ")} — 建议立即补交或申请延期
            </p>
          </div>
          <Button
            size="sm"
            variant="outline"
            className="shrink-0 border-destructive/40 text-destructive hover:bg-destructive/10"
            onClick={() => { setSelectedId(overdueList[0].id); setShowDelay(true) }}
          >
            申请延期
          </Button>
        </div>
      )}

{/* 今日实训焦点 */}
      {todayDeadline.length > 0 && (() => {
        const focal = todayDeadline[0]
        const doneCount = (focal.subtasks ?? []).filter(s => s.done).length
        const totalCount = focal.subtasks?.length ?? 0
        const remaining = totalCount - doneCount
        return (
          <div className="flex items-center gap-4 rounded-xl border border-amber-500/40 bg-amber-500/6 px-4 py-3">
            <div className="flex h-9 w-9 shrink-0 items-center justify-center rounded-lg bg-amber-500/15">
              <Flame className="h-4 w-4 text-amber-500" />
            </div>
            <div className="min-w-0 flex-1">
              <div className="flex items-center gap-2">
                <span className="text-[10px] font-semibold uppercase tracking-wider text-amber-600 dark:text-amber-400">今日截止 · 优先完成</span>
                {countdownDisplay && focal.id === selectedId && (
                  <span className="font-mono text-[11px] font-bold tabular-nums text-amber-700 dark:text-amber-300">{countdownDisplay}</span>
                )}
              </div>
              <p className="mt-0.5 truncate text-sm font-medium">{focal.title}</p>
              <div className="mt-1.5 flex items-center gap-3">
                <div className="flex flex-1 items-center gap-2">
                  <div className="h-1.5 flex-1 max-w-[120px] overflow-hidden rounded-full bg-amber-500/20">
                    <div className="h-full rounded-full bg-amber-500 transition-all" style={{ width: `${focal.progress}%` }} />
                  </div>
                  <span className="text-[11px] font-medium tabular-nums text-amber-700 dark:text-amber-400">{focal.progress}%</span>
                </div>
                {remaining > 0 && (
                  <span className="text-[11px] text-amber-600/80 dark:text-amber-400/80">还差 {remaining} 步完成</span>
                )}
              </div>
            </div>
            <Button
              size="sm"
              className="shrink-0 bg-amber-500 text-white hover:bg-amber-600"
              onClick={() => { setSelectedId(focal.id); setWorkspaceTab("0"); setShowWorkspace(true) }}
            >
              <Play className="mr-1.5 h-3.5 w-3.5" />
              继续实训
            </Button>
          </div>
        )
      })()}

{/* ── 左侧类型分类 ─────────────────────────────────────────────── */}
        <Card className="h-fit">
          <CardHeader className="pb-2 pt-4">
            <CardTitle className="text-[11px] font-medium uppercase tracking-wider text-muted-foreground">按类型筛选</CardTitle>
          </CardHeader>
          <CardContent className="p-2 pb-3">
            {taskTypeCategories.map(cat => (
              <button
                key={cat.key}
                onClick={() => setTypeKey(cat.key)}
                className={`flex w-full items-center justify-between rounded-lg px-2.5 py-1.5 text-sm transition-colors ${
                  typeKey === cat.key ? "bg-primary/10 font-medium text-primary" : "hover:bg-muted"
                }`}
              >
                <span className={`flex items-center gap-2 ${typeKey === cat.key ? "text-primary" : "text-muted-foreground"}`}>
                  {cat.icon}
                  <span className={typeKey === cat.key ? "text-primary" : "text-foreground"}>
                    {cat.key === "all" ? "全部任务" : cat.label}
                  </span>
                </span>
                <span className={`rounded px-1.5 py-0.5 text-[10px] tabular-nums ${
                  typeKey === cat.key ? "bg-primary/15 text-primary" : "bg-muted text-muted-foreground"
                }`}>
                  {typeCounts[cat.key] ?? 0}
                </span>
              </button>
            ))}
          </CardContent>
        </Card>

{/* ── 中间任务列表 ──────────────────────────────────────────────── */}
        <div className="flex min-w-0 flex-col gap-4">
          <Tabs value={tab} onValueChange={v => { setTab(v) }}>
            <TabsList className="h-auto flex-wrap gap-1">
              {mainTabs.map(t => (
                <TabsTrigger key={t.key} value={t.key} className="gap-1.5 text-sm">
                  {t.label}
                  <span className={`rounded px-1.5 py-0.5 text-[10px] font-normal transition-colors ${
                    tab === t.key ? "bg-primary/10 text-primary" : "bg-muted text-muted-foreground"
                  }`}>
                    {t.count}
                  </span>
                </TabsTrigger>
              ))}
            </TabsList>
          </Tabs>

<div className="space-y-2.5">
            {filtered.length === 0 ? (
              <Card className="border-dashed">
                <CardContent className="flex flex-col items-center justify-center gap-2 py-12">
                  <ListChecks className="h-8 w-8 text-muted-foreground" />
                  <p className="text-sm font-medium">暂无匹配任务</p>
                  <p className="text-xs text-muted-foreground">调整筛选条件或清空搜索关键词</p>
                  <Button variant="outline" size="sm" className="mt-1 text-xs" onClick={() => {
                    setQuery(""); setTypeKey("all"); setFilterPlatforms([]); setFilterDifficulty([])
                  }}>清空全部筛选</Button>
                </CardContent>
              </Card>
            ) : (
              filtered.map(t => {
                const meta = statusMeta[t.status]
                const isSelected = t.id === selectedId
                return (
                  <div
                    key={t.id}
                    role="button"
                    tabIndex={0}
                    onKeyDown={e => { if (e.key === "Enter" || e.key === " ") { setSelectedId(t.id); panelRef.current?.scrollTo({ top: 0, behavior: "smooth" }) } }}
                    onClick={() => { setSelectedId(t.id); panelRef.current?.scrollTo({ top: 0, behavior: "smooth" }) }}
                    className={`group w-full cursor-pointer rounded-xl border bg-card p-4 text-left transition-all duration-150 hover:border-primary/40 hover:shadow-md ${
                      isSelected
                        ? "border-primary/60 shadow-sm ring-2 ring-primary/15"
                        : t.due.includes("今日") && t.status === "inprogress"
                          ? "border-amber-500/50 bg-amber-500/3"
                          : ""
                    }`}
                  >
                    <div className="flex flex-wrap items-start justify-between gap-3">
                      <div className="min-w-0 flex-1">
                        <div className="flex flex-wrap items-center gap-1.5">
                          <span className="font-mono text-[11px] text-muted-foreground">{t.id}</span>
                          <Badge variant="outline" className={`text-[10px] ${meta.tone}`}>{meta.label}</Badge>
                          <Badge variant="outline" className="gap-1 text-[10px] font-normal">
                            {typeIconMap[t.type]}{t.type}
                          </Badge>
                          {t.platform && (
                            <Badge variant="outline" className="text-[10px] font-normal text-muted-foreground">{t.platform}</Badge>
                          )}
                          <span className="inline-flex items-center gap-0.5">
                            {Array.from({ length: 5 }).map((_, i) => (
                              <Star key={i} className={`h-3 w-3 ${i < t.difficulty ? "fill-amber-400 text-amber-400" : "text-muted"}`} />
                            ))}
                          </span>
                        </div>
                        <h4 className="mt-1.5 text-[14px] font-medium leading-snug">{t.title}</h4>
                        <div className="mt-1.5 flex flex-wrap items-center gap-x-4 gap-y-1 text-[12px] text-muted-foreground">
                          <span>课程 · {t.course}</span>
                          <span className={`inline-flex items-center gap-1 ${t.due.includes("今日") ? "font-medium text-amber-600 dark:text-amber-400" : ""}`}>
                            {t.due.includes("今日") ? <Timer className="h-3 w-3" /> : <CalendarClock className="h-3 w-3" />}
                            截止: {t.due}
                            {t.id === selectedId && t.due.includes("今日") && countdownDisplay ? (
                              <span className="font-semibold tabular-nums"> · {countdownDisplay}</span>
                            ) : (
                              <span className={t.status === "overdue" ? "font-medium text-destructive" : ""}> · {t.dueSub}</span>
                            )}
                          </span>
                          <span>权重 {t.weight}%</span>
                          {t.score !== null && <span className="font-medium text-foreground">得分 {t.score}/100</span>}
                        </div>
                      </div>
                      <div className="flex flex-col items-end gap-2">
                        <div className="text-[11px] text-muted-foreground">进度 {t.progress}%</div>
                        <div className="w-28">
                          <Progress value={t.progress} className={`h-1.5 ${progressColor(t)}`} />
                        </div>
                        <ChevronRight className={`h-4 w-4 text-muted-foreground transition-transform duration-150 ${isSelected ? "translate-x-0.5 text-primary" : "group-hover:translate-x-0.5"}`} />
                      </div>
                    </div>

{/* inline subtask chips when selected */}
                    {isSelected && t.subtasks && (
                      <div className="mt-3 border-t pt-3 space-y-2">
                        <div className="flex flex-wrap gap-1.5">
                          {t.subtasks.map(s => (
                            <span key={s.name} className={`inline-flex items-center gap-1 rounded-full px-2 py-0.5 text-[11px] ${
                              s.done ? "bg-emerald-500/10 text-emerald-700 dark:text-emerald-400" : "bg-muted text-muted-foreground"
                            }`}>
                              <CheckCircle2 className={`h-3 w-3 ${s.done ? "text-emerald-500" : "opacity-30"}`} />
                              {s.name}
                            </span>
                          ))}
                        </div>
                        {/* workspace fill progress summary */}
                        {t.status === "inprogress" && (() => {
                          const blocks = WORKSPACE_BY_TYPE[t.type] ?? []
                          const filledBlocks = blocks.filter((b, bi) => {
                            const k = `${t.id}-${bi}`
                            if (b.kind === "textarea") return (workspaceData[k] ?? "").trim().length > 10
                            if (b.kind === "table") return Object.keys(workspaceData).some(key => key.startsWith(`${k}-r`) && (workspaceData[key] ?? "").trim())
                            if (b.kind === "checklist") return b.items.some((_, ci) => workspaceData[`${k}-check-${ci}`] === "true")
                            return false
                          })
                          const filledCount = filledBlocks.length
                          const totalBlocks = blocks.length
                          return filledCount > 0 ? (
                            <div className="flex items-center gap-2 rounded-lg bg-muted/40 px-2.5 py-1.5">
                              <Layers className="h-3 w-3 text-muted-foreground shrink-0" />
                              <span className="text-[11px] text-muted-foreground flex-1">
                                工作区已填写 <span className="font-medium text-foreground">{filledCount}/{totalBlocks}</span> 个模块
                              </span>
                              <div className="flex gap-0.5">
                                {blocks.map((b, bi) => {
                                  const k = `${t.id}-${bi}`
                                  const filled = b.kind === "textarea"
                                    ? (workspaceData[k] ?? "").trim().length > 10
                                    : b.kind === "table"
                                      ? Object.keys(workspaceData).some(key => key.startsWith(`${k}-r`) && (workspaceData[key] ?? "").trim())
                                      : b.items.some((_, ci) => workspaceData[`${k}-check-${ci}`] === "true")
                                  return <div key={bi} className={`h-1.5 w-4 rounded-full ${filled ? "bg-primary" : "bg-muted-foreground/20"}`} />
                                })}
                              </div>
                            </div>
                          ) : null
                        })()}
                        {t.status === "inprogress" && (
                          <div className="flex items-center justify-between gap-2">
                            <span className="text-[11px] text-muted-foreground">
                              {t.subtasks.filter(s => s.done).length}/{t.subtasks.length} 步完成
                              {t.subtasks.filter(s => !s.done).length > 0 && (
                                <span className="ml-1.5 text-amber-600 dark:text-amber-400">
                                  · 下一步: {t.subtasks.find(s => !s.done)?.name.slice(0, 16)}{(t.subtasks.find(s => !s.done)?.name.length ?? 0) > 16 ? "…" : ""}
                                </span>
                              )}
                            </span>
                            <button
                              onClick={e => {
                                e.stopPropagation()
                                const nextIdx = t.subtasks!.findIndex(s => !s.done)
                                setSelectedId(t.id)
                                setWorkspaceTab(String(Math.max(0, nextIdx)))
                                setShowWorkspace(true)
                              }}
                              className="inline-flex shrink-0 items-center gap-1 rounded-md bg-primary/10 px-2.5 py-1 text-[11px] font-medium text-primary hover:bg-primary/20 transition-colors"
                            >
                              <Play className="h-2.5 w-2.5" />
                              继续实训
                            </button>
                          </div>
                        )}
                      </div>
                    )}
                  </div>
                )
              })
            )}
          </div>
        </div>

{/* ── 右侧任务详情面板 ──────────────────────────────────────────── */}
        <div ref={panelRef} className="flex flex-col gap-4 overflow-y-auto" style={{ maxHeight: "calc(100vh - 140px)", scrollbarWidth: "thin" }}>
          <Card className="sticky-panel">
            <CardHeader className="pb-3">
              <div className="flex items-center justify-between gap-2">
                <div className="flex items-center gap-1.5 flex-wrap">
                  <span className="font-mono text-[11px] text-muted-foreground">{selected.id}</span>
                  <Badge variant="outline" className={`text-[10px] ${statusMeta[selected.status].tone}`}>
                    {statusMeta[selected.status].label}
                  </Badge>
                  {selected.platform && (
                    <Badge variant="outline" className="text-[10px] text-muted-foreground">{selected.platform}</Badge>
                  )}
                  {hasDelay && <Badge variant="outline" className="text-[10px] text-amber-600 border-amber-500/40 bg-amber-500/10">延期申请中</Badge>}
                </div>
                <span className="inline-flex gap-0.5 shrink-0">
                  {Array.from({ length: 5 }).map((_, i) => (
                    <Star key={i} className={`h-3 w-3 ${i < selected.difficulty ? "fill-amber-400 text-amber-400" : "opacity-25"}`} />
                  ))}
                </span>
              </div>
              <CardTitle className="mt-2 text-[14px] leading-snug">{selected.title}</CardTitle>
            </CardHeader>

{/* Overdue penalty calculator */}
              {selected.status === "overdue" && (
                <div className="rounded-xl border border-destructive/30 bg-destructive/6 p-3 space-y-2.5">
                  <div className="flex items-center gap-2">
                    <AlertTriangle className="h-4 w-4 text-destructive shrink-0" />
                    <p className="text-sm font-semibold text-destructive">任务已逾期</p>
                  </div>
                  <div className="space-y-1.5 text-xs">
                    {(() => {
                      // Extract days overdue from dueSub string like "已逾期 4 天"
                      const daysOverdue = parseInt(selected.dueSub.replace(/[^0-9]/g, "")) || 0
                      const baseMax = 100
                      const currentMax = Math.max(60, baseMax - daysOverdue * 2)
                      const tomorrowMax = Math.max(60, currentMax - 2)
                      return (
                        <div className="grid grid-cols-3 gap-1.5">
                          <div className="rounded-lg bg-destructive/10 px-2 py-1.5 text-center">
                            <p className="text-[10px] text-destructive/70">已逾期</p>
                            <p className="font-semibold text-destructive">{daysOverdue} 天</p>
                          </div>
                          <div className="rounded-lg bg-background border px-2 py-1.5 text-center">
                            <p className="text-[10px] text-muted-foreground">现在提交上限</p>
                            <p className="font-semibold text-amber-600 dark:text-amber-400">{currentMax} 分</p>
                          </div>
                          <div className="rounded-lg bg-muted/40 px-2 py-1.5 text-center">
                            <p className="text-[10px] text-muted-foreground">再晚 1 天上限</p>
                            <p className="font-semibold text-muted-foreground">{tomorrowMax} 分</p>
                          </div>
                        </div>
                      )
                    })()}
                    <p className="text-[11px] text-muted-foreground">每晚 1 天上限分数降低 2 分,最低上限为 60 分。申请延期批准后可恢复部分分数。</p>
                  </div>
                  <div className="flex gap-2">
                    <Button
                      size="sm"
                      variant="outline"
                      className="flex-1 h-7 text-xs border-destructive/40 text-destructive hover:bg-destructive/10"
                      onClick={() => setShowDelay(true)}
                    >
                      <Clock className="mr-1 h-3 w-3" />申请延期
                    </Button>
                    <Button
                      size="sm"
                      className="flex-1 h-7 text-xs"
                      onClick={() => { setWorkspaceTab("0"); setShowWorkspace(true) }}
                    >
                      <Play className="mr-1 h-3 w-3" />立即补交
                    </Button>
                  </div>
                </div>
              )}

{/* Contest banner */}
              {selected.status === "contest" && (
                <div className="rounded-xl border border-violet-500/30 bg-violet-500/8 p-3 space-y-3">
                  <div className="flex items-center gap-2">
                    <Trophy className="h-5 w-5 text-violet-600 dark:text-violet-400 shrink-0" />
                    <div>
                      <p className="text-sm font-semibold text-violet-700 dark:text-violet-300">竞赛任务 · 权重最高</p>
                      <p className="text-[11px] text-violet-600/80 dark:text-violet-400/80">本任务权重 {selected.weight}%,占总成绩比例最大,建议优先投入时间</p>
                    </div>
                  </div>
                  <div className="grid grid-cols-3 gap-2 text-center">
                    <div className="rounded-lg bg-violet-500/10 px-2 py-1.5">
                      <p className="text-[10px] text-violet-600/70 dark:text-violet-400/70">赛事截止</p>
                      <p className="text-xs font-semibold text-violet-700 dark:text-violet-300">{selected.due}</p>
                    </div>
                    <div className="rounded-lg bg-violet-500/10 px-2 py-1.5">
                      <p className="text-[10px] text-violet-600/70 dark:text-violet-400/70">当前进度</p>
                      <p className="text-xs font-semibold text-violet-700 dark:text-violet-300">{selected.progress}%</p>
                    </div>
                    <div className="rounded-lg bg-violet-500/10 px-2 py-1.5">
                      <p className="text-[10px] text-violet-600/70 dark:text-violet-400/70">剩余时间</p>
                      <p className="text-xs font-semibold text-violet-700 dark:text-violet-300">{selected.dueSub.replace("剩余 ","")}</p>
                    </div>
                  </div>
                  {/* Milestone timeline for contest tasks */}
                  {selected.subtasks && selected.subtasks.length > 0 && (
                    <div>
                      <p className="mb-2 text-[10px] font-medium uppercase tracking-wider text-violet-600/70 dark:text-violet-400/70">备赛里程碑</p>
                      <div className="space-y-1.5">
                        {selected.subtasks.map((s, si) => {
                          const totalSubs = selected.subtasks!.length
                          // Distribute milestones across the remaining days
                          const dayLabel = (() => {
                            const daysLeft = parseInt(selected.dueSub.replace(/[^0-9]/g, "")) || 0
                            const daysForThisMilestone = Math.round((daysLeft / totalSubs) * (totalSubs - si))
                            return si === 0 ? "立即" : si === totalSubs - 1 ? "截止前 2 天" : `第 ${Math.round((daysLeft / totalSubs) * si + 1)}-${Math.round((daysLeft / totalSubs) * (si + 1))} 天`
                          })()
                          return (
                            <div key={si} className="flex items-center gap-2">
                              <div className={`flex h-5 w-5 shrink-0 items-center justify-center rounded-full text-[9px] font-bold ${
                                s.done
                                  ? "bg-emerald-500 text-white"
                                  : "border-2 border-violet-400/50 text-violet-500 dark:text-violet-400"
                              }`}>
                                {s.done ? <Check className="h-2.5 w-2.5" /> : si + 1}
                              </div>
                              <div className="min-w-0 flex-1">
                                <span className={`text-[11px] ${s.done ? "text-muted-foreground line-through" : "text-foreground"}`}>
                                  {s.name}
                                </span>
                              </div>
                              <span className="shrink-0 text-[10px] text-violet-500/70 dark:text-violet-400/60">{dayLabel}</span>
                            </div>
                          )
                        })}
                      </div>
                    </div>
                  )}
                  <div className="flex items-start gap-2 text-[11px] text-violet-600/80 dark:text-violet-400/80">
                    <Flame className="h-3.5 w-3.5 shrink-0 mt-0.5" />
                    <span>建议采用「机会扫描 → 竞品对标 → 定价测算」三段式框架，历届获奖作品均在「方法论创新性」与「洞察力」维度得分最高。</span>
                  </div>
                </div>
              )}

{/* KV grid */}
              <div className="grid grid-cols-2 gap-2 text-xs">
                <KV label="类型" value={selected.type} />
                <KV label="课程" value={selected.course} />
                <KV
                  label="截止时间"
                  value={selected.due}
                  sub={selected.due.includes("今日") && countdownDisplay ? countdownDisplay : selected.dueSub}
                  urgent={selected.due.includes("今日") || selected.status === "overdue"}
                />
                <KV label="评分权重" value={`${selected.weight}%`} />
                <KV label="评阅状态" value={selected.reviewStatus} />
                <KV label="当前版本" value={selected.versions?.length ? selected.versions[0].v.split(" ·")[0] : "未提交"} />
              </div>

{/* progress bar */}
              <div className="space-y-1.5">
                <div className="flex items-center justify-between text-xs text-muted-foreground">
                  <span>完成进度</span>
                  <span className="tabular-nums font-medium text-foreground">{selected.progress}%</span>
                </div>
                <Progress value={selected.progress} className={`h-2 ${progressColor(selected)}`} />
              </div>

{/* 得分明细 (done) */}
              {isDone && selected.scoreBreakdown && (
                <div>
                  <div className="mb-2 flex items-center justify-between">
                    <p className="text-xs font-medium text-muted-foreground">得分明细</p>
                    <span className="text-base font-semibold">
                      {selected.score}
                      <span className="text-xs font-normal text-muted-foreground">/100</span>
                    </span>
                  </div>
                  <div className="space-y-1.5">
                    {(() => {
                      // Find the item with the largest deduction relative to max
                      const sorted = [...selected.scoreBreakdown].sort(
                        (a, b) => (b.max - b.score) / b.max - (a.max - a.score) / a.max
                      )
                      const weakestItem = sorted[0]?.item
                      return selected.scoreBreakdown.map(s => {
                        const pct = (s.score / s.max) * 100
                        const isWeak = s.item === weakestItem && s.score < s.max
                        return (
                          <div key={s.item}>
                            <div className="flex items-center gap-2 text-xs">
                              <span className={`w-28 shrink-0 truncate ${isWeak ? "text-amber-600 dark:text-amber-400 font-medium" : "text-muted-foreground"}`}>
                                {s.item}
                              </span>
                              <Progress value={pct} className={`flex-1 h-1.5 ${isWeak ? "[&>div]:bg-amber-500" : ""}`} />
                              <span className={`w-12 shrink-0 text-right tabular-nums ${isWeak ? "text-amber-600 dark:text-amber-400 font-medium" : "text-muted-foreground"}`}>
                                {s.score}<span className="text-[10px] font-normal">/{s.max}</span>
                              </span>
                            </div>
                            {isWeak && (
                              <div className="ml-[7.5rem] mt-0.5 flex items-start gap-1 text-[10px] text-amber-600/80 dark:text-amber-400/80">
                                <CornerDownRight className="h-3 w-3 mt-0.5 shrink-0" />
                                <span>主要扣分项 · 下次优先改进此维度</span>
                              </div>
                            )}
                          </div>
                        )
                      })
                    })()}
                  </div>
                </div>
              )}

{/* 复盘闭环 — 已完成任务 */}
              {isDone && (
                <div className="rounded-xl border border-emerald-500/20 bg-emerald-500/5 p-3 space-y-2.5">
                  <div className="flex items-center gap-2">
                    <GraduationCap className="h-4 w-4 text-emerald-600 dark:text-emerald-400" />
                    <p className="text-sm font-medium text-emerald-700 dark:text-emerald-300">AI 复盘总结</p>
                  </div>
                  <p className="text-[11px] leading-relaxed text-muted-foreground">{selected.aiSuggestion}</p>
                  {DEBRIEF_BY_TYPE[selected.type]?.length > 0 && (
                    <div>
                      <p className="mb-1.5 text-[10px] font-medium uppercase tracking-wide text-muted-foreground">推荐下一步</p>
                      <div className="space-y-1.5">
                        {DEBRIEF_BY_TYPE[selected.type].map(rec => (
                          <a
                            key={rec.title}
                            href={rec.link}
                            className="flex items-center gap-2 rounded-lg bg-background border px-2.5 py-2 text-xs hover:border-primary/40 transition-colors group"
                          >
                            <CornerDownRight className="h-3 w-3 text-muted-foreground shrink-0 group-hover:text-primary transition-colors" />
                            <div className="min-w-0 flex-1">
                              <p className="font-medium truncate">{rec.title}</p>
                              <p className="text-[10px] text-muted-foreground truncate">{rec.desc}</p>
                            </div>
                            <ChevronRight className="h-3 w-3 text-muted-foreground shrink-0" />
                          </a>
                        ))}
                      </div>
                    </div>
                  )}
                </div>
              )}

{/* 子任务 — clickable checkboxes */}
              {selected.subtasks && (
                <div>
                  <div className="mb-2 flex items-center justify-between">
                    <p className="text-xs font-medium text-muted-foreground">子任务拆解</p>
                    <span className="text-[11px] text-muted-foreground">
                      {selected.subtasks.filter(s => s.done).length}/{selected.subtasks.length} 完成
                    </span>
                  </div>
                  <ul className="space-y-1.5">
                    {selected.subtasks.map((s, si) => (
                      <li
                        key={s.name}
                        className={`flex cursor-pointer items-start gap-2 rounded-md px-1.5 py-1 text-sm transition-colors hover:bg-muted/60 ${isDone ? "cursor-default" : ""}`}
                        onClick={() => !isDone && toggleSubtask(selected.id, s.name)}
                      >
                        <div className={`mt-0.5 flex h-4 w-4 shrink-0 items-center justify-center rounded-full border transition-colors ${
                          s.done ? "border-emerald-500 bg-emerald-500 text-white" : "border-muted-foreground/40"
                        }`}>
                          {s.done && <Check className="h-2.5 w-2.5" />}
                        </div>
                        <span className={`flex-1 ${s.done ? "text-muted-foreground line-through" : ""}`}>{s.name}</span>
                        {!isDone && !s.done && (
                          <button
                            onClick={e => { e.stopPropagation(); setWorkspaceTab(String(si)); setShowWorkspace(true) }}
                            className="shrink-0 rounded px-1.5 py-0.5 text-[10px] font-medium text-primary border border-primary/30 hover:bg-primary/10 transition-colors leading-none"
                          >
                            去完成
                          </button>
                        )}
                      </li>
                    ))}
                  </ul>
                </div>
              )}

{/* 关联章节 */}
              {selected.chapters && selected.chapters.length > 0 && (
                <div>
                  <div className="mb-1.5 flex items-center justify-between">
                    <p className="text-xs font-medium text-muted-foreground">关联课程章节</p>
                    <span className="text-[10px] text-muted-foreground/60">点击章节直达对应步骤</span>
                  </div>
                  <div className="flex flex-wrap gap-1.5">
                    {selected.chapters.map((ch, ci) => (
                      <button
                        key={ch}
                        onClick={() => { setWorkspaceTab(String(ci)); setShowWorkspace(true) }}
                        className="inline-flex items-center gap-1 rounded-md bg-muted px-2 py-0.5 text-[11px] text-muted-foreground hover:bg-primary/10 hover:text-primary transition-colors"
                      >
                        <BookOpen className="h-3 w-3" />{ch}
                      </button>
                    ))}
                  </div>
                </div>
              )}

{/* AI 建议 */}
              {selected.aiSuggestion && (
                <div className="rounded-xl border border-primary/15 bg-primary/5 p-3 space-y-2.5">
                  <div className="flex items-center justify-between">
                    <div className="flex items-center gap-2 text-sm font-medium">
                      <Bot className="h-4 w-4 text-primary" />
                      <span>AI 助教建议</span>
                    </div>
                    {/* Thumbs feedback */}
                    <div className="flex items-center gap-1">
                      <button
                        className={`flex h-6 w-6 items-center justify-center rounded-md transition-colors ${aiFeedback[selected.id] === "up" ? "bg-emerald-500/20 text-emerald-600" : "text-muted-foreground hover:text-foreground"}`}
                        onClick={() => setAiFeedback(prev => ({ ...prev, [selected.id]: prev[selected.id] === "up" ? null : "up" }))}
                        title="建议有帮助"
                      >
                        <ThumbsUp className="h-3.5 w-3.5" />
                      </button>
                      <button
                        className={`flex h-6 w-6 items-center justify-center rounded-md transition-colors ${aiFeedback[selected.id] === "down" ? "bg-destructive/15 text-destructive" : "text-muted-foreground hover:text-foreground"}`}
                        onClick={() => setAiFeedback(prev => ({ ...prev, [selected.id]: prev[selected.id] === "down" ? null : "down" }))}
                        title="建议无帮助"
                      >
                        <ThumbsDown className="h-3.5 w-3.5" />
                      </button>
                    </div>
                  </div>
                  <p className="text-xs leading-relaxed text-muted-foreground">{selected.aiSuggestion}</p>
                  {aiFeedback[selected.id] === "down" && (
                    <div className="rounded-lg bg-muted/60 px-3 py-2 text-[11px] text-muted-foreground">
                      感谢反馈。你可以点击下方「生成 AI 报告框架」获取更结构化的指导。
                    </div>
                  )}
                  {!isDone && (
                    <div className="space-y-2">
                      {/* Predicted score hint based on current progress */}
                      {selected.progress > 0 && selected.progress < 100 && (
                        <div className="flex items-center gap-2 rounded-lg bg-muted/50 px-2.5 py-1.5 text-[11px]">
                          <GraduationCap className="h-3.5 w-3.5 text-muted-foreground shrink-0" />
                          <span className="text-muted-foreground">按当前完成度，AI 预估得分约</span>
                          <span className={`font-semibold tabular-nums ${
                            selected.progress >= 80 ? "text-emerald-600 dark:text-emerald-400" :
                            selected.progress >= 50 ? "text-amber-600 dark:text-amber-400" : "text-destructive"
                          }`}>
                            {Math.round(
                              (PRESCORE_RANGE[selected.difficulty]?.[0] ?? 72) *
                              (selected.progress / 100) * 0.7 +
                              (PRESCORE_RANGE[selected.difficulty]?.[0] ?? 72) * 0.3
                            )} 分
                          </span>
                          <span className="text-muted-foreground/60">· 完成更多步骤可提升</span>
                        </div>
                      )}
                      <div className="flex flex-wrap gap-1.5">
                        <Button
                          size="sm"
                          className="h-7 text-xs"
                          disabled={ai.state === "loading"}
                          onClick={() => ai.generate()}
                        >
                          {ai.state === "loading" ? (
                            <><Loader2 className="mr-1.5 h-3 w-3 animate-spin" />AI 生成中…</>
                          ) : ai.state === "done" ? (
                            <><Check className="mr-1.5 h-3 w-3" />已生成报告框架</>
                          ) : (
                            <><Sparkles className="mr-1.5 h-3 w-3" />生成 AI 报告框架</>
                          )}
                        </Button>
                        <Button
                          size="sm"
                          variant="outline"
                          className="h-7 text-xs"
                          onClick={() => { setWorkspaceTab("0"); setShowWorkspace(true) }}
                        >
                          <Layers className="mr-1.5 h-3 w-3" />打开实训工作区
                        </Button>
                      </div>
                    </div>
                  )}
                  {ai.state === "done" && ai.draft && (
                    <div className="rounded-lg bg-muted/60 p-2.5 text-[11px] text-muted-foreground whitespace-pre-line leading-relaxed border">
                      {ai.draft}
                    </div>
                  )}
                </div>
              )}

{/* 操作按钮 */}
              <div className="flex flex-col gap-2">
                {!isDone && !hasSubmitted && (
                  <div className="flex gap-2">
                    {(selected.status === "inprogress" || selected.status === "overdue" || selected.status === "contest") && (
                      <Button
                        size="sm"
                        className="flex-1"
                        onClick={() => { setWorkspaceTab("0"); setShowWorkspace(true) }}
                      >
                        <Play className="mr-1.5 h-3.5 w-3.5" />
                        {selected.status === "contest" ? "进入备赛工作区" : "进入实训工作区"}
                      </Button>
                    )}
                    {(isSubmittable || selected.status === "overdue") && (
                      <Button size="sm" variant={selected.status === "overdue" ? "outline" : "default"} className="flex-1" onClick={() => setShowSubmit(true)}>
                        <Send className="mr-1.5 h-3.5 w-3.5" />
                        {selected.status === "overdue" ? "补交报告" : "提交报告"}
                      </Button>
                    )}
                    {selected.status === "pending" && (
                      <div className="flex w-full flex-col gap-1.5">
                        <div className="flex items-center justify-center gap-2 rounded-lg bg-amber-500/10 py-2 text-sm text-amber-700 dark:text-amber-400">
                          <Clock className="h-4 w-4" />{selected.reviewStatus}
                        </div>
                        {selected.reviewStatus === "AI 初评中" && (
                          <div className="rounded-xl border border-primary/15 bg-primary/5 px-3 py-2.5 space-y-1.5">
                            <div className="flex items-center gap-2 text-xs font-medium text-primary">
                              <Loader2 className="h-3.5 w-3.5 animate-spin" />
                              AI 正在逐维度打分中…
                            </div>
                            <div className="flex gap-1">
                              {(["uploading","reading","scoring"] as const).map((_, i) => (
                                <div key={i} className={`h-1 flex-1 rounded-full ${i === 1 ? "bg-primary" : i === 0 ? "bg-primary" : "bg-muted"}`} />
                              ))}
                            </div>
                            <p className="text-[10px] text-muted-foreground">{selected.aiSuggestion}</p>
                          </div>
                        )}
                        {selected.reviewStatus === "待教师批阅" && (
                          <div className="rounded-xl border border-border bg-muted/30 px-3 py-2 text-[11px] text-muted-foreground">
                            <p className="font-medium text-foreground mb-0.5">AI 初评已完成</p>
                            <p>{selected.aiSuggestion}</p>
                          </div>
                        )}
                      </div>
                    )}
                  </div>
                )}
                {/* AI mock-review progress */}
                {hasSubmitted && reviewSim.phase !== "idle" && reviewSim.phase !== "done" && (
                  <div className="rounded-xl border border-primary/20 bg-primary/5 px-3 py-2.5">
                    <div className="flex items-center gap-2 text-sm font-medium text-primary">
                      <Loader2 className="h-4 w-4 animate-spin" />
                      <span>{REVIEW_PHASES.find(p => p.phase === reviewSim.phase)?.label}</span>
                    </div>
                    <div className="mt-2 flex gap-1">
                      {(["uploading","reading","scoring"] as ReviewPhase[]).map((p, i) => {
                        const phases = ["uploading","reading","scoring","done"] as ReviewPhase[]
                        const current = phases.indexOf(reviewSim.phase)
                        const done = current > i
                        const active = current === i
                        return (
                          <div key={p} className={`h-1 flex-1 rounded-full transition-colors ${done ? "bg-primary" : active ? "bg-primary/50" : "bg-muted"}`} />
                        )
                      })}
                    </div>
                  </div>
                )}
                {hasSubmitted && reviewSim.phase === "done" && reviewSim.preScore !== null && (
                  <div className="rounded-xl border border-emerald-500/30 bg-emerald-500/8 px-3 py-3 space-y-1.5">
                    <div className="flex items-center justify-between">
                      <div className="flex items-center gap-2 text-sm font-medium text-emerald-700 dark:text-emerald-400">
                        <CheckCircle2 className="h-4 w-4" />AI 初评完成
                      </div>
                      <span className="text-2xl font-bold text-emerald-700 dark:text-emerald-400 tabular-nums">{reviewSim.preScore}</span>
                    </div>
                    <p className="text-[11px] text-muted-foreground">预估得分 · 教师最终批阅通常在 48 小时内完成,分数可能有调整。</p>
                    {reviewSim.deductItem && (
                      <div className="flex gap-1.5 text-[11px] text-muted-foreground">
                        <CornerDownRight className="h-3.5 w-3.5 mt-0.5 shrink-0" />
                        <span>主要扣分维度:「<span className="font-medium text-foreground">{reviewSim.deductItem}</span>」— 描述可以更量化,建议补充具体数据依据后申请复核。</span>
                      </div>
                    )}
                  </div>
                )}
                {hasSubmitted && reviewSim.phase === "idle" && (
                  <div className="flex w-full items-center justify-center gap-2 rounded-xl bg-emerald-500/10 py-2.5 text-sm font-medium text-emerald-700 dark:text-emerald-400">
                    <CheckCircle2 className="h-4 w-4" />已提交,AI 初评进行中…
                  </div>
                )}
                {isDone && (
                  <Button size="sm" variant="outline" className="w-full" onClick={() => setShowWork(true)}>
                    <ExternalLink className="mr-1.5 h-3.5 w-3.5" />
                    查看已提交作业
                  </Button>
                )}
              </div>

{/* 次要操作 */}
              <div className="flex flex-wrap gap-x-4 gap-y-1 text-xs text-muted-foreground">
                <button className="inline-flex items-center gap-1 hover:text-foreground transition-colors" onClick={() => setShowRubric(true)}>
                  <FileText className="h-3 w-3" />查看评分标准
                </button>
                {isDone && (
                  <button className="inline-flex items-center gap-1 hover:text-foreground transition-colors" onClick={() => setShowReview(true)}>
                    <History className="h-3 w-3" />申请复核
                  </button>
                )}
                {(isOverdue || selected.status === "inprogress") && !hasDelay && (
                  <button className="inline-flex items-center gap-1 hover:text-foreground transition-colors" onClick={() => setShowDelay(true)}>
                    <ArrowRight className="h-3 w-3" />申请延期
                  </button>
                )}
                {hasDelay && (
                  <span className="inline-flex items-center gap-1 text-amber-600">
                    <Clock className="h-3 w-3" />延期审批中
                  </span>
                )}
              </div>

{/* 版本历史 */}
              {selected.versions && selected.versions.length > 0 && (
                <>
                  <Separator />
                  <div>
                    <p className="mb-2.5 text-xs font-medium text-muted-foreground">提交版本历史</p>
                    <div className="space-y-2.5">
                      {selected.versions.map((v, i) => (
                        <div key={v.v} className="flex gap-2.5">
                          <div className="flex flex-col items-center">
                            <div className={`flex h-5 w-5 items-center justify-center rounded-full text-[10px] font-semibold ${
                              i === 0 ? "brand-gradient text-white" : "bg-muted text-muted-foreground"
                            }`}>
                              {(selected.versions?.length ?? 0) - i}
                            </div>
                            {i < (selected.versions?.length ?? 0) - 1 && (
                              <div className="mt-1 h-7 w-px bg-border" />
                            )}
                          </div>
                          <div className="flex-1 pb-1">
                            <div className="flex items-center justify-between gap-2">
                              <p className="text-xs font-medium">{v.v}</p>
                              <span className="text-[11px] text-muted-foreground">{v.time}</span>
                            </div>
                            <p className="mt-0.5 text-[11px] text-muted-foreground">{v.diff}</p>
                          </div>
                        </div>
                      ))}
                    </div>
                  </div>
                </>
              )}
            </CardContent>
          </Card>
        </div>
      </div>

{/* ── 底部任务总览表 ─────────────────────────────────────────────────── */}
      <Card>
        <CardHeader className="pb-2">
          <div className="flex items-center justify-between">
            <div>
              <CardTitle className="text-base">任务总览表</CardTitle>
              <p className="text-xs text-muted-foreground">全部 {tasks.length} 项实训任务 · 点击表头排序 · 点击行跳转详情</p>
            </div>
          </div>
        </CardHeader>
        <CardContent className="p-0">
          <Table>
            <TableHeader>
              <TableRow>
                <TableHead className="w-[88px]">编号</TableHead>
                <TableHead>任务标题</TableHead>
                <TableHead className="w-[88px]">类型</TableHead>
                <TableHead className="w-[64px]">课程</TableHead>
                <TableHead className="w-[68px]">难度</TableHead>
                <TableHead
                  className="w-[108px] cursor-pointer select-none hover:text-foreground"
                  onClick={() => handleSort("due")}
                >
                  <span className="inline-flex items-center">截止时间<SortIcon k="due" /></span>
                </TableHead>
                <TableHead
                  className="w-[72px] cursor-pointer select-none hover:text-foreground"
                  onClick={() => handleSort("weight")}
                >
                  <span className="inline-flex items-center">权重<SortIcon k="weight" /></span>
                </TableHead>
                <TableHead className="w-[80px]">状态</TableHead>
                <TableHead
                  className="w-[96px] cursor-pointer select-none hover:text-foreground"
                  onClick={() => handleSort("progress")}
                >
                  <span className="inline-flex items-center">进度<SortIcon k="progress" /></span>
                </TableHead>
                <TableHead
                  className="w-[60px] cursor-pointer select-none text-right hover:text-foreground"
                  onClick={() => handleSort("score")}
                >
                  <span className="inline-flex items-center justify-end">得分<SortIcon k="score" /></span>
                </TableHead>
                <TableHead className="w-[50px] text-right">操作</TableHead>
              </TableRow>
            </TableHeader>
            <TableBody>
              {tasks.map(t => (
                <TableRow
                  key={t.id}
                  className={`cursor-pointer text-xs transition-colors ${
                    t.status === "overdue"
                      ? "bg-destructive/5 hover:bg-destructive/10"
                      : t.id === selectedId
                        ? "bg-primary/5 hover:bg-primary/8"
                        : t.due.includes("今日") && t.status === "inprogress"
                          ? "bg-amber-500/4 hover:bg-amber-500/8"
                          : "hover:bg-muted/50"
                  }`}
                  onClick={() => setSelectedId(t.id)}
                >
                  <TableCell className="font-mono text-[11px] text-muted-foreground">{t.id}</TableCell>
                  <TableCell className="max-w-[240px]">
                    <div className="flex items-center gap-1.5 truncate">
                      {t.status === "overdue" && <AlertTriangle className="h-3 w-3 shrink-0 text-destructive" />}
                      {t.due.includes("今日") && t.status === "inprogress" && <Flame className="h-3 w-3 shrink-0 text-amber-500" />}
                      <span className="truncate font-medium">{t.title}</span>
                    </div>
                  </TableCell>
                  <TableCell className="text-muted-foreground">
                    <span className="inline-flex items-center gap-1">
                      {typeIconMap[t.type]}
                      <span className="hidden xl:inline">{t.type}</span>
                    </span>
                  </TableCell>
                  <TableCell className="text-muted-foreground">{t.course}</TableCell>
                  <TableCell>
                    <span className="inline-flex gap-0.5">
                      {Array.from({ length: 5 }).map((_, i) => (
                        <Star key={i} className={`h-2.5 w-2.5 ${i < t.difficulty ? "fill-amber-400 text-amber-400" : "text-muted"}`} />
                      ))}
                    </span>
                  </TableCell>
                  <TableCell>
                    <div className={t.status === "overdue" ? "font-medium text-destructive" : t.due.includes("今日") ? "font-medium text-amber-600 dark:text-amber-400" : "text-muted-foreground"}>
                      {t.due}
                    </div>
                    {(t.status === "overdue" || t.due.includes("今日")) && (
                      <div className="text-[10px] text-muted-foreground">{t.dueSub}</div>
                    )}
                  </TableCell>
                  <TableCell className="text-muted-foreground">{t.weight}%</TableCell>
                  <TableCell>
                    <Badge variant="outline" className={`text-[10px] ${statusMeta[t.status].tone}`}>
                      {statusMeta[t.status].label}
                    </Badge>
                  </TableCell>
                  <TableCell>
                    {t.score === null ? (
                      <div className="flex items-center gap-1.5">
                        <div className="h-1.5 w-16 overflow-hidden rounded-full bg-muted">
                          <div
                            className={`h-full rounded-full transition-all ${t.status === "overdue" ? "bg-destructive" : t.status === "contest" ? "bg-violet-500" : "bg-primary/70"}`}
                            style={{ width: `${t.progress}%` }}
                          />
                        </div>
                        <span className="tabular-nums text-[10px] text-muted-foreground">{t.progress}%</span>
                      </div>
                    ) : (
                      <span className="text-[10px] text-muted-foreground">—</span>
                    )}
                  </TableCell>
                  <TableCell className="text-right tabular-nums">
                    {t.score !== null ? (
                      <span className={`font-semibold ${t.score >= 90 ? "text-emerald-600 dark:text-emerald-400" : t.score >= 75 ? "" : "text-amber-600"}`}>
                        {t.score}
                      </span>
                    ) : <span className="text-muted-foreground">—</span>}
                  </TableCell>
                  <TableCell className="text-right">
                    <button
                      className="text-xs text-primary hover:underline"
                      onClick={e => { e.stopPropagation(); setSelectedId(t.id); panelRef.current?.scrollIntoView({ behavior: "smooth" }) }}
                    >
                      详情
                    </button>
                  </TableCell>
                </TableRow>
              ))}
            </TableBody>
          </Table>
        </CardContent>
      </Card>

{/* ──────────────────────── Dialogs / Sheets ─────────────────────────── */}

{/* 实训工作区 Sheet */}
      <Sheet open={showWorkspace} onOpenChange={setShowWorkspace}>
        <SheetContent side="right" className="w-full max-w-2xl overflow-y-auto p-0">
          <SheetHeader className="sticky top-0 z-10 bg-background border-b px-5 pt-4 pb-0">
            <div className="flex items-center gap-3 pb-3">
              <div className="flex h-8 w-8 items-center justify-center rounded-lg bg-primary/10">
                <Layers className="h-4 w-4 text-primary" />
              </div>
              <div className="min-w-0 flex-1">
                <SheetTitle className="text-sm leading-tight truncate">{selected.title}</SheetTitle>
                <p className="text-[11px] text-muted-foreground mt-0.5">
                  {selected.type} · 实训工作区 ·{" "}
                  {lastSaved ? (
                    <span className="text-emerald-600 dark:text-emerald-400">已自动保存</span>
                  ) : (
                    <span>内容自动保存</span>
                  )}
                </p>
              </div>
              <div className="flex items-center gap-1.5 shrink-0">
                <span className="text-[11px] text-muted-foreground">完成度</span>
                <span className="text-sm font-semibold tabular-nums">{selected.progress}%</span>
              </div>
            </div>
            {/* Step progress strip */}
            {selected.subtasks && selected.subtasks.length > 0 && (
              <div className="flex items-center gap-0 pb-3 overflow-x-auto scrollbar-none">
                {selected.subtasks.map((s, i) => (
                  <React.Fragment key={i}>
                    <button
                      onClick={() => setWorkspaceTab(String(i))}
                      className="flex shrink-0 flex-col items-center gap-1"
                    >
                      <div className={`flex h-6 w-6 items-center justify-center rounded-full border-2 text-[10px] font-bold transition-all ${
                        s.done
                          ? "border-emerald-500 bg-emerald-500 text-white"
                          : workspaceTab === String(i)
                            ? "border-primary bg-primary text-primary-foreground"
                            : "border-muted-foreground/30 bg-background text-muted-foreground"
                      }`}>
                        {s.done ? <Check className="h-3 w-3" /> : i + 1}
                      </div>
                      <span className={`max-w-[72px] text-center text-[9px] leading-tight ${
                        s.done ? "text-emerald-600 dark:text-emerald-400" : workspaceTab === String(i) ? "font-medium text-primary" : "text-muted-foreground"
                      }`}>
                        {s.name.length > 12 ? s.name.slice(0, 12) + "…" : s.name}
                      </span>
                    </button>
                    {i < selected.subtasks!.length - 1 && (
                      <div className={`mx-1 h-px flex-1 min-w-[16px] max-w-[40px] rounded-full transition-colors ${
                        selected.subtasks![i].done ? "bg-emerald-500/60" : "bg-border"
                      }`} />
                    )}
                  </React.Fragment>
                ))}
              </div>
            )}
          </SheetHeader>

<div className="px-5 py-4 space-y-4">
            {/* Workspace overall fill progress */}
            {selected.subtasks && (() => {
              const blocks = WORKSPACE_BY_TYPE[selected.type] ?? []
              const filled = blocks.filter((b, bi) => {
                const k = `${selected.id}-${bi}`
                if (b.kind === "textarea") return (workspaceData[k] ?? "").trim().length > 10
                if (b.kind === "table") return Object.keys(workspaceData).some(key => key.startsWith(`${k}-r`) && (workspaceData[key] ?? "").trim())
                if (b.kind === "checklist") return b.items.some((_, ci) => workspaceData[`${k}-check-${ci}`] === "true")
                return false
              }).length
              const total = blocks.length
              const pct = total > 0 ? Math.round((filled / total) * 100) : 0
              return total > 0 ? (
                <div className="flex items-center gap-3 rounded-lg bg-muted/30 px-3 py-2">
                  <div className="min-w-0 flex-1 space-y-1">
                    <div className="flex items-center justify-between text-[10px] text-muted-foreground">
                      <span>工作区填写进度</span>
                      <span className={`font-medium tabular-nums ${pct >= 100 ? "text-emerald-600 dark:text-emerald-400" : pct >= 60 ? "text-amber-600 dark:text-amber-400" : ""}`}>
                        {filled}/{total} 模块 ({pct}%)
                      </span>
                    </div>
                    <div className="h-1 rounded-full bg-muted overflow-hidden">
                      <div
                        className={`h-full rounded-full transition-all duration-500 ${pct >= 100 ? "bg-emerald-500" : "bg-primary"}`}
                        style={{ width: `${pct}%` }}
                      />
                    </div>
                  </div>
                  {pct >= 100 && (
                    <div className="flex items-center gap-1 shrink-0 text-[10px] font-medium text-emerald-600 dark:text-emerald-400">
                      <CheckCircle2 className="h-3.5 w-3.5" />全部填完
                    </div>
                  )}
                </div>
              ) : null
            })()}
            {/* Subtask tabs */}
            {selected.subtasks && selected.subtasks.length > 0 && (
              <Tabs value={workspaceTab} onValueChange={setWorkspaceTab}>
                <TabsList className="h-auto flex-wrap gap-1 mb-1">
                  {selected.subtasks.map((s, i) => (
                    <TabsTrigger key={i} value={String(i)} className="gap-1.5 text-xs max-w-[200px]">
                      <span className={`flex h-4 w-4 shrink-0 items-center justify-center rounded-full text-[9px] font-bold ${s.done ? "bg-emerald-500 text-white" : "bg-muted text-muted-foreground"}`}>
                        {s.done ? <Check className="h-2.5 w-2.5" /> : i + 1}
                      </span>
                      <span className="truncate">{s.name.length > 18 ? s.name.slice(0, 18) + "…" : s.name}</span>
                    </TabsTrigger>
                  ))}
                </TabsList>

{selected.subtasks.map((s, i) => {
                  const blocks = WORKSPACE_BY_TYPE[selected.type] ?? []
                  const block = blocks[i] ?? blocks[blocks.length - 1]
                  const taskKey = `${selected.id}-${i}`
                  const rowsKey = `${taskKey}-rows`
                  const dynamicRows = tableRowCounts[rowsKey] ?? (block?.kind === "table" ? block.rows : 3)
                  const currentText = workspaceData[taskKey] ?? ""
                  const wordCount = currentText.replace(/\s/g, "").length
                  const minWords = WORD_COUNT_THRESHOLD[selected.type]?.[i]
                  const wordCountMet = minWords != null ? wordCount >= minWords : true
                  const wordCountColor = minWords == null ? "text-muted-foreground" : wordCountMet ? "text-emerald-600 dark:text-emerald-400 font-medium" : "text-amber-600 dark:text-amber-400"
                  const aiHint = WORKSPACE_HINTS_BY_TYPE[selected.type]?.[i]
                    ?? "填写完成后勾选「标记为完成」,进度将自动同步到任务列表。"

return (
                    <TabsContent key={i} value={String(i)} className="mt-3 space-y-4">
                      {/* Subtask header */}
                      <div className="flex items-start justify-between gap-3">
                        <div>
                          <h3 className="text-sm font-semibold">{s.name}</h3>
                          {block?.hint && <p className="text-[11px] text-muted-foreground mt-0.5">{block.hint}</p>}
                        </div>
                        <button
                          className={`flex items-center gap-1.5 rounded-full px-2.5 py-1 text-[11px] font-medium border transition-colors shrink-0 ${
                            s.done
                              ? "border-emerald-500/30 bg-emerald-500/10 text-emerald-700 dark:text-emerald-400"
                              : "border-primary/40 bg-primary/5 text-primary hover:bg-primary/10"
                          }`}
                          onClick={() => {
                            toggleSubtask(selected.id, s.name)
                            // auto-advance to next incomplete step if marking done
                            if (!s.done && i < (selected.subtasks?.length ?? 1) - 1) {
                              setTimeout(() => setWorkspaceTab(String(i + 1)), 300)
                            }
                          }}
                        >
                          <CheckCircle2 className={`h-3.5 w-3.5 ${s.done ? "text-emerald-500" : "text-primary"}`} />
                          {s.done ? "已完成" : "标记为完成"}
                        </button>
                      </div>

{/* Block content */}
                      {block && (
                        <>
                          {block.kind === "textarea" && (
                            <div className="space-y-1.5">
                              <div className="flex items-center justify-between">
                                <label className="text-xs font-medium text-muted-foreground">{block.label}</label>
                                <div className="flex items-center gap-1">
                                  {/* Example fill button */}
                                  {EXAMPLE_FILL_BY_TYPE[selected.type]?.[i] && (
                                    <button
                                      onClick={() => {
                                        const exKey = `${taskKey}-ex`
                                        const example = EXAMPLE_FILL_BY_TYPE[selected.type]?.[i] ?? ""
                                        if (example) {
                                          setExampleVisible(prev => ({ ...prev, [exKey]: !prev[exKey] }))
                                        }
                                      }}
                                      className="inline-flex items-center gap-1 rounded-md border border-dashed border-primary/40 bg-primary/5 px-2 py-0.5 text-[10px] text-primary hover:bg-primary/10 transition-colors"
                                    >
                                      <Lightbulb className="h-2.5 w-2.5" />
                                      示例参考
                                    </button>
                                  )}
                                </div>
                              </div>
                              {/* Example preview panel */}
                              {exampleVisible[`${taskKey}-ex`] && EXAMPLE_FILL_BY_TYPE[selected.type]?.[i] && (
                                <div className="rounded-lg border border-dashed border-primary/30 bg-muted/30 p-2.5 space-y-1.5">
                                  <div className="flex items-center justify-between">
                                    <span className="text-[10px] font-medium text-muted-foreground">高分示例(仅供参考,请用自己的真实数据)</span>
                                    <button
                                      onClick={() => {
                                        const example = EXAMPLE_FILL_BY_TYPE[selected.type]?.[i] ?? ""
                                        setWorkspaceData(prev => ({ ...prev, [taskKey]: (prev[taskKey] ? prev[taskKey] + "\n\n" : "") + example }))
                                        setExampleVisible(prev => ({ ...prev, [`${taskKey}-ex`]: false }))
                                      }}
                                      className="inline-flex items-center gap-1 rounded px-1.5 py-0.5 text-[10px] font-medium bg-primary/10 text-primary hover:bg-primary/20 transition-colors"
                                    >
                                      <PlusCircle className="h-2.5 w-2.5" />插入
                                    </button>
                                  </div>
                                  <p className="whitespace-pre-wrap text-[10px] leading-relaxed text-muted-foreground font-mono">
                                    {EXAMPLE_FILL_BY_TYPE[selected.type]?.[i]}
                                  </p>
                                </div>
                              )}
                              <Textarea
                                className="min-h-[160px] text-sm font-mono leading-relaxed"
                                placeholder={block.placeholder}
                                value={currentText}
                                onChange={e => { const v = e.target.value; setWorkspaceData(prev => ({ ...prev, [taskKey]: v })) }}
                              />
                              {/* Snippets row */}
                              {SNIPPETS_BY_TYPE[selected.type]?.[i] && (
                                <div className="flex flex-wrap gap-1">
                                  {SNIPPETS_BY_TYPE[selected.type]![i].map((snip, si) => (
                                    <button
                                      key={si}
                                      onClick={() => setWorkspaceData(prev => ({
                                        ...prev,
                                        [taskKey]: (prev[taskKey] ? prev[taskKey] + "\n" : "") + snip
                                      }))}
                                      className="inline-flex items-center gap-1 rounded-full border border-border bg-background px-2 py-0.5 text-[10px] text-muted-foreground hover:border-primary/40 hover:text-primary transition-colors"
                                    >
                                      <PlusCircle className="h-2.5 w-2.5 shrink-0" />
                                      <span className="max-w-[140px] truncate">{snip.split("\n")[0].slice(0, 28)}{snip.split("\n")[0].length > 28 ? "…" : ""}</span>
                                    </button>
                                  ))}
                                </div>
                              )}
                              <div className="flex items-center justify-between">
                                {minWords != null ? (
                                  <span className={`text-[10px] flex items-center gap-1 ${wordCountColor}`}>
                                    {wordCountMet
                                      ? <CheckCircle2 className="h-3 w-3" />
                                      : <span className="opacity-70">目标 {minWords} 字</span>
                                    }
                                    {wordCountMet ? `已达标 (${wordCount} 字)` : ""}
                                  </span>
                                ) : <span />}
                                <span className={`text-[10px] tabular-nums ${wordCountColor}`}>{wordCount} 字</span>
                              </div>
                              {minWords != null && (
                                <div className="h-1.5 rounded-full bg-muted overflow-hidden">
                                  <div
                                    className={`h-full rounded-full transition-all duration-300 ${wordCountMet ? "bg-emerald-500" : "bg-amber-500"}`}
                                    style={{ width: `${Math.min(100, (wordCount / minWords) * 100)}%` }}
                                  />
                                </div>
                              )}
                            </div>
                          )}