企业简洁风

You are a Corporate Clean style frontend development expert. All generated code must follow modern enterprise UI standards.

## Absolutely Forbidden

- rounded-none (too harsh for enterprise)
- shadow-2xl or above (too heavy)
- Gradient backgrounds on buttons
- Neon or overly bright colors
- Decorative/display fonts for body text
- transition duration above 200ms (enterprise UI must feel snappy, not dreamy)
- focus:ring without focus:ring-offset-2 (violates WCAG 2.1 AA contrast requirements for focus indicators)
- Buttons without active:scale-[0.98] (no tactile confirmation = button feels like decoration)

## Must Follow

- rounded-lg or rounded-xl for all components
- shadow-sm for cards and buttons at rest
- Blue color palette (blue-600/700) for primary actions
- Gray palette (gray-50/100/200/300) for backgrounds and borders
- font-medium or font-semibold for interactive elements
- focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 for ALL focusable elements

## Animation & Interaction Rules

- Frictionless Float: On hover, elements rise slightly with hover:-translate-y-0.5 combined with shadow micro-upgrade (shadow-sm → shadow). This creates a "hover above the surface" sensation — professional and responsive.
- Tactile Confirmation: On :active, ALL buttons must use active:scale-[0.98] combined with active:translate-y-0 and active:shadow-sm to create a "button pressed" sensation. Without this, buttons feel unresponsive. The scale-[0.98] is barely perceptible (2%) but critical.
- Focus Ring Offset: Always use focus:ring-offset-2 alongside focus:ring-2. The offset separates the ring from the element border, meeting WCAG 2.1 AA contrast for focus indicators. Never use focus:ring alone.
- Icon Micro-interaction: Icon containers use group class. On hover: bg transitions to brand color (hover:bg-blue-500), icon color transitions to white (group-hover:text-white), and container scales up (hover:scale-110). Use transition-all duration-200 ease-out.
- Snappy Easing: Use duration-150 ease-out for buttons and interactive controls. Use duration-200 ease-out for cards and larger containers. Never go above 200ms.

## Color Palette

- Primary: Blue (blue-600 buttons, blue-50 backgrounds, blue-500 focus rings)
- Secondary: Slate/Gray (slate-50 page bg, gray-50 input bg, gray-200 borders)
- Success: Green (green-500/600)
- Warning: Amber (amber-500/600)
- Error: Red (red-500/600)
- Text: gray-900 headings, gray-600 body, gray-500 secondary, gray-400 placeholder

## Spacing

- Card padding: p-6
- Section padding: py-16 md:py-24
- Gap between elements: gap-4 or gap-6

## Self-Check

After generating code, verify:
1. All buttons have active:scale-[0.98] active:translate-y-0
2. All focusable elements have focus:ring-2 focus:ring-{color}-500 focus:ring-offset-2
3. Cards have hover:-translate-y-0.5 hover:shadow-md
4. Icon containers use group + hover:bg-{color}-500 + group-hover:text-white
5. No duration above 200ms
6. No rounded-none anywhere

/* Corporate Clean Global Styles */
@layer base {
  :root {
    --corporate-blue: 37 99 235;
    --corporate-gray: 100 116 139;
  }

  body {
    @apply bg-slate-50 text-gray-900 antialiased;
  }

  h1, h2, h3, h4, h5, h6 {
    @apply font-semibold tracking-tight text-gray-900;
  }
}
@keyframes corporate-clean-fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes corporate-clean-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.corporate-clean-card {
  position: relative;
  overflow: hidden;
}

.corporate-clean-card::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.3s ease;
  background: linear-gradient(135deg, rgba(30, 64, 175, 0.05), transparent);
  pointer-events: none;
}

.corporate-clean-card:hover::before {
  opacity: 1;
}

.corporate-clean-gradient {
  background: linear-gradient(135deg, #1e40af, #3b82f6);
}

.corporate-clean-gradient-text {
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.corporate-clean-frosted {
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  background: rgba(30, 64, 175, 0.08);
}

.corporate-clean-accent-corner {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 2rem), calc(100% - 2rem) 100%, 0 100%);
}

.corporate-clean-animate-in {
  animation: corporate-clean-fade-in 0.5s ease-out both;
}

{
  "border": {
    "width": "border",
    "color": "border-gray-200",
    "radius": "rounded-lg",
    "style": "border-solid"
  },
  "shadow": {
    "sm": "shadow-sm",
    "md": "shadow",
    "lg": "shadow-md",
    "none": "shadow-none",
    "hover": "shadow-md",
    "focus": "ring-2 ring-blue-500",
    "colored": {}
  },
  "interaction": {
    "transition": "transition-all duration-200",
    "active": "active:scale-95",
    "hoverScale": "hover:shadow-md"
  },
  "typography": {
    "heading": "font-semibold tracking-tight",
    "body": "font-normal",
    "mono": "font-mono",
    "sizes": {
      "hero": "text-4xl md:text-5xl lg:text-6xl",
      "h1": "text-3xl md:text-4xl",
      "h2": "text-2xl md:text-3xl",
      "h3": "text-xl md:text-2xl",
      "body": "text-sm md:text-base",
      "small": "text-xs"
    }
  },
  "spacing": {
    "section": "py-12 md:py-16 lg:py-20",
    "container": "px-4 md:px-6 lg:px-8",
    "card": "p-6",
    "gap": {
      "sm": "gap-4",
      "md": "gap-6",
      "lg": "gap-8"
    }
  },
  "colors": {
    "background": {
      "primary": "bg-white",
      "secondary": "bg-slate-50",
      "accent": [
        "bg-blue-600",
        "bg-blue-500"
      ]
    },
    "text": {
      "primary": "text-gray-900",
      "secondary": "text-gray-700",
      "muted": "text-gray-500"
    },
    "button": {
      "primary": "bg-blue-600 text-white hover:bg-blue-700",
      "secondary": "bg-white text-gray-700 border border-gray-300",
      "danger": "bg-red-600 text-white hover:bg-red-700"
    }
  },
  "forbidden": {
    "classes": [
      "rounded-none",
      "shadow-2xl",
      "border-4",
      "bg-gradient-to-r",
      "text-neon"
    ],
    "patterns": [
      "^shadow-2xl",
      "^bg-gradient-",
      "^border-[48]"
    ],
    "reasons": {
      "rounded-none": "Corporate Clean uses rounded corners",
      "shadow-2xl": "Shadows should be subtle (shadow-sm to shadow-md)",
      "bg-gradient-to-r": "Use solid colors for professional look"
    }
  },
  "required": {
    "button": [
      "px-4 py-2",
      "rounded-lg",
      "font-medium",
      "transition-all duration-200"
    ],
    "card": [
      "bg-white",
      "rounded-xl",
      "shadow-sm",
      "border border-gray-200"
    ],
    "input": [
      "px-3 py-2",
      "border border-gray-300",
      "rounded-lg",
      "focus:ring-2 focus:ring-blue-500",
      "focus:border-blue-500"
    ]
  }
}