AI工程题库

# Design Brief: Retro & Nostalgic (with Minimal Monochrome)

Pixel typography, classic OS window chrome, or warm vintage print palettes.

## Design Tokens

```css
:root {
  --background: #f6f4ee;
  --surface: #f3efe6;
  --foreground: #1a1a1a;
  --muted-foreground: #6b675f;
  --accent: #2f5bff;
  --radius: 4px;
  --font-heading: "Press Start 2P", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Source Serif 4", serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}
```

Color area ratio: Background #F6F4EE (~52%) · Surface #F3EFE6 (~18%) · Text #1A1A1A (~12%) · Muted Text #6B675F (~8%) · Accent #2F5BFF (~10%). Background and surface dominate the canvas; reserve the accent color for primary buttons and active states.

## Layout & Conversion Structure

- Hero layout: Split Copy & Visual
- Navigation: Full-Width Top Bar
- Theme & density: Light · Balanced
- Border radius & elevation: Small Radius; no drop shadows—separate layers with hairline borders and whitespace
- Primary visual medium: Illustration / Character Art
- Conversion CTA: Start Free / Sign Up · Trust bar uses User Count, Rating, or Key Metrics
- Headline hook: Category Positioning Anchor
- Hero components: Code & Terminal, Custom Illustration
- Spatial layout notes: Split Copy & Visual hero structure paired with start free / sign up CTA and user count, rating, or key metrics.
- Visual summary: Retro & Nostalgic (Light canvas, balanced density) featuring split copy & visual layout and illustration / character art visuals.

## Avoid

- Generic modern corporate gradients
- Inconsistent mixing of modern flat UI and retro chrome

Implement the UI following the design tokens and layout specifications above: use only these color variables, and reserve the accent color strictly for primary actions and active states. Adopt only this visual style—never copy any reference product’s brand name, logo, copy, or imagery.