I pulled the latest changes from v0/zzzminjiiii-7337-08b69dd9 in v0-logic-prototype-design.

Now I understand the full picture. Currently Group 3 only covers single KB FAQ scenarios (3, 3.1, 3.2, 3.3). The user wants to add a scenario where the answer comes from multiple KB FAQs + AI supplementation -- similar to Group 2's multi-FAQ synthesis but with AI deep expansion on top. I need to add a new scene for this.

Let me also check the expandable card component since this multi-source scene would benefit from expandable cards like Group 2:

Good, now I have the full picture. I need to add a new scene to Group 3 that shows the case where the answer comes from multiple KB FAQs combined with AI supplementation. This is distinct from the current Group 3 scenes (single FAQ deep expansion) and also distinct from Group 2 (pure multi-FAQ synthesis without AI). The new scene should show expandable source cards (like Group 2) but with an additional "AI supplement" indicator in the TTS. Let me add this as Scene 3.4:

Now I need to add the "ai" type to the ExpandableFAQCard so it renders with a distinct style:

Now update the card styling to visually differentiate the AI type:

Now update the type badge styling for AI cards:

Now add Scene 3.4 to the scenes array and update the annotations:

Now add the annotation for Scene 3.4:

Finally update the scene count on the page:

已为第三组新增 Scene 3.4（多KB FAQ + AI补充） 场景。这个场景展示了答案来自多个知识库FAQ（花穹、云雾林）加上AI补充内容的综合情况：TTS文本标注为"多个KB FAQ + AI补充综合"，卡片区使用可展开的来源卡，其中KB来源卡标记为"来源节点"（绿色），AI补充卡标记为"AI补充"（金色），视觉上清晰区分两种内容来源。总场景数已更新为11。