I'll design a wiki tab interface with separate tabs for CRM model, Koval model, optimizers, and error analysis calculation. This will provide users with easy access to information about these topics. Let's create a React component for this wiki interface.

This React component creates a wiki-style interface with tabs for CRM model, Koval model, optimizers, and error analysis calculation. Here's a breakdown of the design:

1. The component uses the Tabs component from the shadcn/ui library to create the tabbed interface.
2. Each tab content is wrapped in a ScrollArea component to allow scrolling if the content exceeds the fixed height.
3. The content for each tab provides an overview of the topic, key concepts, and relevant information.
4. The layout is responsive and should work well on various screen sizes.

To use this component in your Next.js application:

1. Make sure you have the necessary shadcn/ui components installed (Tabs, Card, and ScrollArea).
2. Copy the WikiTabs component into your project.
3. Import and use the WikiTabs component in your desired page or layout.

You can further customize the content and styling to match your specific needs. The current design provides a clean and organized way for users to access information about CRM model, Koval model, optimizers, and error analysis calculation.