# Story 1-9 Blog System - UX Pixel-Perfect Specifications

> **UX Expert Review Document**
> 參考來源: `research/www.enchun.tw/news.html`
> 設計系統: `apps/frontend/src/styles/theme.css`
> 目標視覺保真度: 95%+
> URL 結構: `/blog` (SEO 友好)

---

## 🎨 Design Token 驗證

### 色彩系統

| 用途 | 變數名稱 | Hex Color | CSS Variable | 驗證狀態 |
|------|----------|-----------|--------------|----------|
| 主品牌色 | Enchun Blue | `#23608c` | `--color-enchunblue` | ✅ 已定義 |
| 深品牌色 | Enchun Blue Dark | `#3083bf` | `--color-enchunblue-dark` | ✅ 已定義 |
| 深灰文字 | Tarawera | `#2d3748` | `--color-tarawera` | ✅ 已定義 |
| 通知紅 | Notification Red | `#d84038` | `--color-accent` | ✅ 已定義 |
| CTA 強調 | Amber | `#f6c456` | `--color-amber` | ✅ 已定義 |

### 類別分區顏色

| 類別 | Hex Color | CSS Variable | 驗證狀態 |
|------|-----------|--------------|----------|
| Google 小學堂 | `#67aee1` | `--color-category-google` | ✅ 已定義 |
| Meta 小學堂 | `#8974de` | `--color-category-meta` | ✅ 已定義 |
| 行銷時事最前線 | `#3083bf` | `--color-category-news` | ✅ 已定義 |
| 恩群數位 | `#3898ec` | `--color-category-enchun` | ✅ 已定義 |

---

## 📐 Section 詳細規格

### 1. Blog 列表頁

#### 頁面路徑: `/blog`

```css
.blog-section {
    padding: 60px 0 80px;
    background-color: var(--color-background);
}

.blog-header {
    text-align: center;
    margin-bottom: 50px;
}

.blog-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-tarawera);
    margin-bottom: 10px;
    line-height: 1.2;
}

.blog-subtitle {
    font-size: 1.125rem;
    color: var(--color-gray-700);
    font-weight: 400;
    line-height: 1.6;
}
```

#### 分類篩選器
```css
.category-filter {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.category-button {
    padding: 12px 24px;
    background-color: var(--color-gray-100);
    border: 2px solid transparent;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-gray-700);
    transition: all 200ms ease-in-out;
}

.category-button:hover {
    background-color: var(--color-gray-200);
    transform: translateY(-2px);
}

.category-button.active {
    background-color: var(--color-enchunblue);
    border-color: var(--color-enchunblue);
    color: white;
}
```

#### 文章卡片網格
```css
.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    margin-bottom: 60px;
}

@media (min-width: 1024px) {
    .posts-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 767px) {
    .posts-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}
```

---

### 2. 文章卡片組件

#### 組件檔案: `components/blog/ArticleCard.astro`

```css
.article-card {
    background-color: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 300ms ease-in-out;
    display: block;
    text-decoration: none;
    color: inherit;
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.card-image-wrapper {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 */
    overflow: hidden;
    background-color: var(--color-gray-100);
}

.card-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 300ms ease-in-out;
}

.article-card:hover .card-image {
    transform: scale(1.05);
}

.category-badge-overlay {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
    backdrop-filter: blur(4px);
    background-color: rgba(0, 0, 0, 0.6);
}

.card-content {
    padding: 24px;
}

.category-badge {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
    margin-bottom: 12px;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-tarawera);
    margin-bottom: 12px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-excerpt {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    color: var(--color-gray-500);
}
```

---

### 3. 分頁元件

```css
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 48px;
}

.pagination-link {
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    background-color: white;
    border: 1px solid var(--color-gray-300);
    border-radius: 8px;
    color: var(--color-gray-700);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 200ms ease-in-out;
}

.pagination-link:hover {
    background-color: var(--color-enchunblue);
    border-color: var(--color-enchunblue);
    color: white;
}

.pagination-link.active {
    background-color: var(--color-enchunblue);
    border-color: var(--color-enchunblue);
    color: white;
}
```

---

### 4. 文章詳情頁

#### 頁面路徑: `/blog/[slug]`

```css
.article-header {
    text-align: center;
    padding: 60px 0 40px;
}

.article-hero {
    margin-bottom: 40px;
}

.hero-image {
    width: 100%;
    max-height: 500px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.article-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-tarawera);
    margin-bottom: 16px;
    line-height: 1.2;
}

.article-category-badge {
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 0.875rem;
    font-weight: 600;
    color: white;
    margin-bottom: 16px;
}

.article-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 0;
}

.article-content-wrapper {
    background-color: white;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.article-content p {
    margin-bottom: 20px;
    line-height: 1.8;
    font-size: 1.125rem;
}

.article-content h2 {
    font-size: 2rem;
    font-weight: 600;
    margin: 40px 0 20px;
}

.article-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 30px 0 16px;
}
```

---

## 📱 響應式斷點總結

| Breakpoint | 字體大小 | 主容器 | 卡片佈局 |
|------------|----------|--------|----------|
| Desktop (≥1200px) | 16px | 1200px | 3 columns |
| Tablet (768-1199px) | 19px | 96% | 2 columns |
| Mobile (479-767px) | 16px | 96% | 1 column |
| Small Mobile (<479px) | 13px | 96% | 1 column |

---

## 🏗️ 組件實現清單

### ⏳ 需新增
- [ ] `ArticleCard.astro` - 文章卡片
- [ ] `CategoryFilter.astro` - 分類篩選器
- [ ] `Pagination.astro` - 分頁元件
- [ ] `RelatedPosts.astro` - 相關文章

### 📝 URL 結構
- 列表頁: `/blog`
- 詳情頁: `/blog/[slug]`
- 分類頁: `/blog/category/[slug]`

---

## 📋 驗收標準

### 視覺保真度檢查
- [ ] 文章卡片樣式與設計一致
- [ ] 分類標籤顏色正確
- [ ] Hover 效果流暢
- [ ] 響應式佈局正確

### 功能檢查
- [ ] 分類篩選功能正常
- [ ] 分頁導航正常
- [ ] 文章詳情頁渲染正確
- [ ] 相關文章顯示正常

### 性能檢查
- [ ] Lighthouse Performance ≥ 90
- [ ] 圖片懶加載實現
- [ ] 分頁載入實現

---

*此文件由 UX Expert 創建，最後更新：2026-02-10*