Apple 风格

你是一个 Apple Style 设计风格的前端开发专家。生成的所有代码必须严格遵守以下约束：

## 绝对禁止

- 使用渐变背景
- 使用过多颜色（超过 3 种）
- 使用重阴影 shadow-xl, shadow-2xl
- 元素过于拥挤
- 使用花哨的装饰和动画

## 必须遵守

- 大量留白
- Apple 灰背景 bg-[#f5f5f7]
- Apple 蓝强调 text-[#0071e3], bg-[#0071e3]
- 精致圆角 rounded-xl, rounded-2xl, rounded-full
- 微妙阴影 shadow-[0_4px_12px_rgba(0,0,0,0.08)]
- SF Pro 风格字体

## 配色

主色调：
- 黑色: text-black, bg-black
- 白色: text-white, bg-white
- Apple 灰: bg-[#f5f5f7]

强调色：
- Apple 蓝: #0071e3
- Apple 绿: #34c759
- Apple 红: #ff3b30

## 字体

- 标题: font-semibold tracking-tight
- 正文: font-normal
- 链接: text-[#0071e3] hover:underline

## 布局

- 最大宽度: max-w-5xl 或 max-w-[980px]
- 大量留白: py-20, py-24
- 居中对齐: text-center, mx-auto

## Animation & Interaction Rules

- Spring Physics: 严禁使用默认的 linear 或基础 ease。必须使用丝滑的减速曲线，如 `transition-all duration-500 ease-[cubic-bezier(0.25,0.1,0.25,1)]`。
- Haptic Touch: 所有可交互元素（按钮、卡片）必须具备物理按压的阻尼感，强制添加 `active:scale-[0.98]` 或 `active:scale-[0.96]`。
- Contextual Depth: 卡片悬停时，利用 `group-hover` 让内部图片或图标产生微妙放大（`scale-105`），营造视差纵深感。
- Subtle Blurs: 交互过程可以伴随背景模糊度或不透明度的平滑过渡。

## 自检

每次生成代码后检查：
1. 留白足够大
2. 配色克制（黑白灰 + 蓝色点缀）
3. 没有渐变
4. 整体感觉高端简约

/* Apple Style 全局样式 */

:root {
  --apple-black: #000000;
  --apple-white: #ffffff;
  --apple-gray: #f5f5f7;
  --apple-blue: #0071e3;
  --apple-blue-hover: #0077ed;
  --apple-green: #34c759;
  --apple-red: #ff3b30;
}

/* Apple 风格字体 */
body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Apple 风格标题 */
.apple-headline {
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

/* Apple 风格链接 */
.apple-link {
  color: var(--apple-blue);
  text-decoration: none;
}

.apple-link:hover {
  text-decoration: underline;
}

/* Apple 风格按钮 */
.apple-button {
  background: var(--apple-blue);
  color: white;
  border-radius: 9999px;
  font-weight: 500;
  transition: background-color 0.2s ease;
}

.apple-button:hover {
  background: var(--apple-blue-hover);
}

/* Apple 风格卡片 */
.apple-card {
  background: white;
  border-radius: 18px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}
@keyframes apple-style-fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

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

.apple-style-card {
  position: relative;
  overflow: hidden;
}

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

.apple-style-card:hover::before {
  opacity: 1;
}

.apple-style-gradient {
  background: linear-gradient(135deg, #000000, #0071e3);
}

.apple-style-gradient-text {
  background: linear-gradient(135deg, #000000, #0071e3);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.apple-style-frosted {
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  background: rgba(0, 0, 0, 0.08);
}

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

.apple-style-animate-in {
  animation: apple-style-fade-in 0.5s ease-out both;
}

{
  "border": {
    "width": "border-0",
    "color": "border-gray-200",
    "radius": "rounded-2xl",
    "style": "border-none"
  },
  "shadow": {
    "sm": "shadow-[0_2px_8px_rgba(0,0,0,0.04)]",
    "md": "shadow-[0_4px_12px_rgba(0,0,0,0.08)]",
    "lg": "shadow-[0_8px_24px_rgba(0,0,0,0.12)]",
    "none": "shadow-none",
    "hover": "hover:shadow-[0_8px_24px_rgba(0,0,0,0.12)]",
    "focus": "focus:shadow-[0_0_0_4px_rgba(0,113,227,0.3)]",
    "colored": {}
  },
  "interaction": {
    "transition": "transition-all duration-200",
    "active": "active:scale-95",
    "hoverOpacity": "hover:opacity-80"
  },
  "typography": {
    "heading": "font-semibold tracking-tight text-black",
    "body": "text-gray-600",
    "mono": "font-mono text-sm",
    "sizes": {
      "hero": "text-5xl md:text-7xl lg:text-8xl",
      "h1": "text-4xl md:text-5xl lg:text-6xl",
      "h2": "text-3xl md:text-4xl",
      "h3": "text-xl md:text-2xl",
      "body": "text-base md:text-lg",
      "small": "text-sm"
    }
  },
  "spacing": {
    "section": "py-20 md:py-32",
    "container": "px-6 md:px-8",
    "card": "p-8 md:p-12",
    "gap": {
      "sm": "gap-4",
      "md": "gap-8",
      "lg": "gap-12"
    }
  },
  "colors": {
    "background": {
      "primary": "bg-white",
      "secondary": "bg-[#f5f5f7]",
      "accent": [
        "bg-black",
        "bg-[#0071e3]"
      ]
    },
    "text": {
      "primary": "text-black",
      "secondary": "text-gray-500",
      "muted": "text-gray-400"
    },
    "button": {
      "primary": "bg-[#0071e3] text-white",
      "secondary": "bg-black text-white"
    }
  },
  "forbidden": {
    "classes": [
      "bg-gradient-to-r",
      "bg-gradient-to-br",
      "shadow-2xl",
      "shadow-inner",
      "border-2",
      "border-4"
    ],
    "patterns": [
      "^bg-gradient",
      "^shadow-(?:2xl|inner)",
      "^border-(?:2|4|8)"
    ],
    "reasons": {
      "bg-gradient-to-r": "Apple style uses solid colors, not gradients",
      "shadow-2xl": "Apple style uses subtle, refined shadows",
      "border-2": "Apple style uses minimal or no borders"
    }
  },
  "required": {
    "button": [
      "px-6 py-3",
      "bg-[#0071e3]",
      "rounded-full",
      "text-white font-medium",
      "hover:bg-[#0077ed]",
      "transition-colors duration-200"
    ],
    "card": [
      "bg-white",
      "rounded-2xl",
      "shadow-[0_4px_12px_rgba(0,0,0,0.08)]"
    ],
    "input": [
      "bg-[#f5f5f7]",
      "rounded-xl",
      "text-black placeholder-gray-400",
      "focus:outline-none focus:ring-2 focus:ring-[#0071e3]",
      "transition-all"
    ]
  }
}