卡片堆叠布局

STYLEKIT_STYLE_REFERENCE
style_name: Card Stack
style_slug: card-stack
style_source: /styles/card-stack

# Hard Prompt

Strictly follow the style rules below and maintain consistency. No style drift allowed.

## Requirements
- Prioritize style consistency first, then creative extension.
- When conflicts arise, treat prohibitions as the highest priority.
- Self-check before output: verify colors, typography, spacing, and interactions still match this style.

## Style Rules
# Card Stack (卡片堆叠布局) Design System

> 卡片前后重叠的立体布局，通过 Z 轴层叠和偏移创造深度感，适合轮播、步骤展示、卡组选择。

## 核心理念

Card Stack（卡片堆叠布局）是一种利用 Z 轴创造深度感的布局方式，多张卡片前后重叠，形成视觉层次。

核心理念：
- 深度感知：通过层叠暗示更多内容
- 焦点引导：最前面的卡片获得最多关注
- 交互预期：暗示可以翻阅或切换
- 空间节省：在有限空间展示多个选项
- 洗牌动感：hover 时牌堆像手持扑克般散开

设计原则：
- 视觉一致性：所有组件必须遵循统一的视觉语言，从色彩到字体到间距保持谐调
- 层次分明：通过颜色深浅、字号大小、留白空间建立清晰的信息层级
- 交互反馈：每个可交互元素都必须有明确的 hover、active、focus 状态反馈
- 响应式适配：设计必须在移动端、平板、桌面端上保持一致的体验
- 无障碍性：确保色彩对比度符合 WCAG 2.1 AA 标准，所有交互元素可键盘访问

---

## Token 字典（精确 Class 映射）

### 边框
```
宽度: border
颜色: border-zinc-200
圆角: rounded-2xl
```

### 阴影
```
小:   shadow-md
中:   shadow-xl
大:   shadow-2xl
悬停: hover:shadow-2xl
聚焦: focus:shadow-xl
```

### 交互效果
```
悬停位移: undefined
过渡动画: transition-all duration-300 ease-[cubic-bezier(0.4,0,0.2,1)]
按下状态: active:scale-95
```

### 字体
```
标题: font-bold tracking-tight
正文: font-sans
```

### 字号
```
Hero:  text-3xl md:text-4xl lg:text-5xl
H1:    text-2xl md:text-3xl
H2:    text-xl md:text-2xl
H3:    text-lg md:text-xl
正文:  text-sm md:text-base
小字:  text-xs md:text-sm
```

### 间距
```
Section: py-16 md:py-20 lg:py-24
容器:    px-4 md:px-8
卡片:    p-6 md:p-8
```

---

## [FORBIDDEN] 绝对禁止

以下 class 在本风格中**绝对禁止使用**，生成时必须检查并避免：

### 禁止的 Class
- `rounded-none`
- `shadow-none`
- `border-4`
- `border-8`

### 禁止的模式
- 匹配 `^rounded-none$`
- 匹配 `^border-[48]`

### 禁止原因
- `rounded-none`: Card Stack uses generous rounding (rounded-2xl) for soft stacked cards
- `shadow-none`: Card Stack requires shadows to convey depth and layering
- `border-4`: Card Stack uses subtle or no borders, relying on shadows for definition

> WARNING: 如果你的代码中包含以上任何 class，必须立即替换。

---

## [REQUIRED] 必须包含

### 按钮必须包含
```
rounded-full
shadow-lg
hover:shadow-xl
transition-shadow
```

### 卡片必须包含
```
rounded-2xl
shadow-xl
transition-all duration-300
bg-white
```

### 输入框必须包含
```
bg-white/80 backdrop-blur
border border-zinc-200
rounded-xl
focus:outline-none
focus:ring-2 focus:ring-purple-500/30
transition-all
```

---

## [COMPARE] 错误 vs 正确对比

### 按钮

[WRONG] **错误示例**（使用了圆角和模糊阴影）：
```html
<button class="rounded-lg shadow-lg bg-blue-500 text-white px-4 py-2 hover:bg-blue-600">
  点击我
</button>
```

[CORRECT] **正确示例**（使用硬边缘、无圆角、位移效果）：
```html
<button class="rounded-full shadow-lg hover:shadow-xl transition-shadow bg-[#ff006e] text-white px-4 py-2 md:px-6 md:py-3">
  点击我
</button>
```

### 卡片

[WRONG] **错误示例**（使用了渐变和圆角）：
```html
<div class="rounded-xl shadow-2xl bg-gradient-to-r from-purple-500 to-pink-500 p-6">
  <h3 class="text-xl font-semibold">标题</h3>
</div>
```

[CORRECT] **正确示例**（纯色背景、硬边缘阴影）：
```html
<div class="rounded-2xl shadow-xl transition-all duration-300 bg-white p-6 md:p-8">
  <h3 class="font-bold tracking-tight text-lg md:text-xl">标题</h3>
</div>
```

### 输入框

[WRONG] **错误示例**（灰色边框、圆角）：
```html
<input class="rounded-md border border-gray-300 px-3 py-2 focus:ring-2 focus:ring-blue-500" />
```

[CORRECT] **正确示例**（黑色粗边框、聚焦阴影）：
```html
<input class="bg-white/80 backdrop-blur border border-zinc-200 rounded-xl focus:outline-none focus:ring-2 focus:ring-purple-500/30 transition-all px-3 py-2 md:px-4 md:py-3" placeholder="请输入..." />
```

---

## [TEMPLATES] 页面骨架模板

使用以下模板生成页面，只需替换 `{PLACEHOLDER}` 部分：

### 导航栏骨架
```html
<nav class="bg-white border-b-2 md:border-b-4 border-black px-4 md:px-8 py-3 md:py-4">
  <div class="flex items-center justify-between max-w-6xl mx-auto">
    <a href="/" class="font-black text-xl md:text-2xl tracking-wider">
      {LOGO_TEXT}
    </a>
    <div class="flex gap-4 md:gap-8 font-mono text-sm md:text-base">
      {NAV_LINKS}
    </div>
  </div>
</nav>
```

### Hero 区块骨架
```html
<section class="min-h-[60vh] md:min-h-[80vh] flex items-center px-4 md:px-8 py-12 md:py-0 bg-{ACCENT_COLOR} border-b-2 md:border-b-4 border-black">
  <div class="max-w-4xl mx-auto">
    <h1 class="font-black text-4xl md:text-6xl lg:text-8xl leading-tight tracking-tight mb-4 md:mb-6">
      {HEADLINE}
    </h1>
    <p class="font-mono text-base md:text-xl max-w-xl mb-6 md:mb-8">
      {SUBHEADLINE}
    </p>
    <button class="bg-black text-white font-black px-6 py-3 md:px-8 md:py-4 border-2 md:border-4 border-black shadow-[4px_4px_0px_0px_rgba(255,0,110,1)] md:shadow-[8px_8px_0px_0px_rgba(255,0,110,1)] hover:shadow-none hover:translate-x-[2px] hover:translate-y-[2px] transition-all text-sm md:text-base">
      {CTA_TEXT}
    </button>
  </div>
</section>
```

### 卡片网格骨架
```html
<section class="py-12 md:py-24 px-4 md:px-8">
  <div class="max-w-6xl mx-auto">
    <h2 class="font-black text-2xl md:text-4xl mb-8 md:mb-12">{SECTION_TITLE}</h2>
    <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4 md:gap-6">
      <!-- Card template - repeat for each card -->
      <div class="bg-white border-2 md:border-4 border-black shadow-[4px_4px_0px_0px_rgba(0,0,0,1)] md:shadow-[8px_8px_0px_0px_rgba(0,0,0,1)] p-4 md:p-6 hover:shadow-[4px_4px_0px_0px_rgba(255,0,110,1)] md:hover:shadow-[8px_8px_0px_0px_rgba(255,0,110,1)] hover:-translate-y-1 transition-all">
        <h3 class="font-black text-lg md:text-xl mb-2">{CARD_TITLE}</h3>
        <p class="font-mono text-sm md:text-base text-gray-700">{CARD_DESCRIPTION}</p>
      </div>
    </div>
  </div>
</section>
```

### 页脚骨架
```html
<footer class="bg-black text-white py-12 md:py-16 px-4 md:px-8 border-t-2 md:border-t-4 border-black">
  <div class="max-w-6xl mx-auto">
    <div class="grid grid-cols-1 md:grid-cols-3 gap-8">
      <div>
        <span class="font-black text-xl md:text-2xl">{LOGO_TEXT}</span>
        <p class="font-mono text-sm mt-4 text-gray-400">{TAGLINE}</p>
      </div>
      <div>
        <h4 class="font-black text-lg mb-4">{COLUMN_TITLE}</h4>
        <ul class="space-y-2 font-mono text-sm text-gray-400">
          {FOOTER_LINKS}
        </ul>
      </div>
    </div>
  </div>
</footer>
```

---

## [CHECKLIST] 生成后自检清单

**在输出代码前，必须逐项验证以下每一条。如有违反，立即修正后再输出：**

### 1. 圆角检查
- [ ] 搜索代码中的 `rounded-`
- [ ] 确认只有 `rounded-none` 或无圆角
- [ ] 如果发现 `rounded-lg`、`rounded-md` 等，替换为 `rounded-none`

### 2. 阴影检查
- [ ] 搜索代码中的 `shadow-`
- [ ] 确认只使用 `shadow-[Xpx_Xpx_0px_0px_rgba(...)]` 格式
- [ ] 如果发现 `shadow-lg`、`shadow-xl` 等，替换为正确格式

### 3. 边框检查
- [ ] 搜索代码中的 `border-`
- [ ] 确认边框颜色是 `border-black`
- [ ] 如果发现 `border-gray-*`、`border-slate-*`，替换为 `border-black`

### 4. 交互检查
- [ ] 所有按钮都有 `hover:shadow-none hover:translate-x-[2px] hover:translate-y-[2px]`
- [ ] 所有卡片都有 hover 效果（阴影变色或位移）
- [ ] 都包含 `transition-all`

### 5. 响应式检查
- [ ] 边框有 `border-2 md:border-4`
- [ ] 阴影有 `shadow-[4px...] md:shadow-[8px...]`
- [ ] 间距有 `p-4 md:p-6` 或类似的响应式值
- [ ] 字号有 `text-sm md:text-base` 或类似的响应式值

### 6. 字体检查
- [ ] 标题使用 `font-black`
- [ ] 正文使用 `font-mono`

> CRITICAL: **如果任何一项检查不通过，必须修正后重新生成代码。**

---

## [EXAMPLES] 示例 Prompt

### 1. 定价方案选择

堆叠展示不同定价方案

```
Create pricing cards with stack layout:
1. 3 cards stacked: Starter, Pro, Enterprise
2. Front card fully visible with details
3. Back cards scaled down, offset, and slightly rotated
4. On group-hover: back cards fan out sideways with different rotations
5. Front card lifts with scale-105 and large shadow on hover
6. Each card: plan name, price, features list, CTA
7. Navigation arrows on sides with hover feedback
Dark gradient background, white cards
```

### 2. 产品卡组

类似 Tinder 的产品浏览

```
Create a Tinder-style product card stack:
1. Stack of product cards (5 cards, 3 visible)
2. Swipe right to like, left to pass
3. Each card: product image, name, price, rating
4. On hover: top card peels up (scale-105, shadow-2xl, -translate-y-6), back cards fan out
5. Swipe animation with rotation + opacity fade
6. Undo last action button
7. Fun, interactive, mobile-friendly design
```

### 3. 步骤引导

分步引导的卡片堆叠

```
Create an onboarding flow with card stack:
1. 4 step cards stacked
2. group-hover causes back cards to fan out with rotate + translate-x
3. Front card lifts with scale-105 and shadow-2xl
4. Click Next to advance (card slides out with rotation)
5. Progress indicator dots
6. Each card: step number, title, illustration, description
7. Final card has CTA button
Clean design with duration-[400ms] ease-out transitions
```

STYLEKIT_STYLE_REFERENCE
style_name: Card Stack
style_slug: card-stack
style_source: /styles/card-stack

# Soft Prompt

Maintain the overall style essence. Implementation details can be adjusted flexibly, but do not deviate from the core visual language.

## Style Signals
- 卡片
- 堆叠
- 立体
- 层叠
- 轮播
- 3D

## Prefer
- Use transform and z-index to create stacking effects
- Back cards scale down and offset scale-95 translate-y-4
- Add progressive opacity opacity-80, opacity-60
- Support drag or click to switch cards

## Avoid
- Do not stack too many cards causing clutter
- Do not completely overlap cards hiding layer distinction
- Do not ignore interaction feedback

## Output Guidance
- Ensure overall style recognizability first, then refine details.
- Avoid over-engineering; maintain readability and maintainability.