柔和界面风

# Soft UI (柔和界面风) Design System

> 温和友好的界面风格，柔和的阴影、圆润的边角、低饱和度的配色。适合消费类应用、社交产品、生活服务类 App。

## 核心理念

Soft UI 设计风格强调友好、亲和、舒适的视觉体验，让用户感到放松和愉悦。

核心理念：
- 温和友好：通过柔和的阴影和圆角传达亲和力
- 低对比度：避免强烈对比，使用柔和的色彩过渡
- 触感设计：让界面元素看起来可以触摸
- 情感连接：通过设计传达温暖和关怀

---

## Token 字典（精确 Class 映射）

### 边框
```
宽度: border-0
颜色: border-transparent
圆角: rounded-2xl
```

### 阴影
```
小:   shadow-md shadow-gray-200/50
中:   shadow-lg shadow-gray-200/50
大:   shadow-xl shadow-gray-200/50
悬停: shadow-xl shadow-indigo-500/20
聚焦: ring-2 ring-indigo-500/50
```

### 交互效果
```
悬停位移: undefined
过渡动画: transition-all duration-200

```

### 字体
```
标题: font-semibold
正文: font-normal
```

### 字号
```
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
正文:  text-sm md:text-base
小字:  text-xs
```

### 间距
```
Section: py-16 md:py-24
容器:    px-4 md:px-6 lg: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`
- `rounded-sm`
- `border-2`
- `border-4`
- `border-black`
- `shadow-[`
- `bg-black`

### 禁止的模式
- 匹配 `^rounded-none`
- 匹配 `^rounded-sm$`
- 匹配 `^border-[24]`
- 匹配 `^border-black`

### 禁止原因
- `rounded-none`: Soft UI requires large rounded corners (rounded-2xl+)
- `border-2`: Soft UI avoids visible borders, uses shadows instead
- `border-black`: Soft UI uses soft colors, never hard black borders

> 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
```
px-6 py-3
rounded-2xl
font-medium
shadow-lg
hover:-translate-y-0.5
hover:shadow-xl
transition-all duration-200
```

### 卡片必须包含
```
bg-white
rounded-3xl
shadow-xl shadow-gray-200/50
hover:shadow-2xl
hover:-translate-y-1
transition-all duration-300
```

### 输入框必须包含
```
px-5 py-3.5
bg-gray-50
border-0
rounded-2xl
focus:ring-2 focus:ring-indigo-500/50
focus:bg-white
transition-all duration-200
```

---

## [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="px-6 py-3 rounded-2xl font-medium shadow-lg hover:-translate-y-0.5 hover:shadow-xl transition-all duration-200 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="bg-white rounded-3xl shadow-xl shadow-gray-200/50 hover:shadow-2xl hover:-translate-y-1 transition-all duration-300 p-6 md:p-8">
  <h3 class="font-semibold text-xl md:text-2xl">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="px-5 py-3.5 bg-gray-50 border-0 rounded-2xl focus:ring-2 focus:ring-indigo-500/50 focus:bg-white transition-all duration-200 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. 消费App

生成消费类 App 着陆页

```
Create a consumer app landing using Soft UI style:
- Hero with app mockup and soft floating cards
- Feature section with rounded cards and colored shadows
- Testimonial cards with avatar and soft shadows
- CTA with gradient button (soft gradient)
- All rounded-2xl or rounded-3xl
- Hover effects with lift and shadow expansion
```