/* ===================================
   星图AI博客 - 博客专用样式
   复用 main.css 变量系统，保持视觉一致性
   =================================== */

/* ===================================
   1. 博客英雄区
   =================================== */
.blog-hero {
    position: relative;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-bg-white);
    padding: var(--spacing-section-desktop) var(--spacing-container);
    margin-bottom: var(--spacing-xl);
    overflow: hidden;
}

/* 英雄区装饰圆形 */
.blog-hero::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
}

.blog-hero::after {
    content: '';
    position: absolute;
    bottom: -150px;
    left: -50px;
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.blog-hero h1 {
    position: relative;
    z-index: 1;
    font-size: 48px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-bg-white);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.blog-description {
    position: relative;
    z-index: 1;
    font-size: 20px;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
    color: var(--color-bg-white);
    text-align: center;
    line-height: 1.6;
}

/* ===================================
   页面背景与内容区分
   =================================== */
body.blog-body {
    background-color: var(--color-bg-page);
}

.main-content {
    background-color: var(--color-bg-page);
}

/* ===================================
   2. 博客列表页
   =================================== */
.blog-list {
    padding: var(--spacing-xl) var(--spacing-container);
    width: 90%;
    max-width: 1200px;
    margin: 0 auto var(--spacing-xl);
    background-color: var(--color-bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
}

.blog-list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-border);
}

.blog-list-count {
    font-size: 14px;
    color: var(--color-text-secondary);
    font-weight: 500;
}

.blog-cards {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    width: 85%;
    max-width: 900px;
    margin: 0 auto;
}

.blog-card {
    position: relative;
    background-color: var(--color-bg-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-card-inner);
    padding-left: calc(var(--spacing-card-inner) + 4px);
    width: 100%;
    box-shadow: var(--shadow-card);
    transition: var(--transition-fast);
    border-left: 4px solid var(--color-primary);
}

.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
    border-left-color: var(--color-primary-dark);
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    font-size: 14px;
    color: var(--color-text-secondary);
}

.blog-card-category {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-bg-white);
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.blog-card h2 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
    line-height: 1.4;
}

.blog-card h2 a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

.blog-card h2 a:hover {
    color: var(--color-primary);
}

.blog-card p {
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
    font-size: 14px;
}

.blog-card-summary {
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    font-size: 14px;
}

.blog-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border);
}

.blog-card-readtime {
    font-size: 13px;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: 4px;
}

.blog-card-readtime::before {
    content: '⏱';
    font-size: 12px;
}

.read-more {
    display: inline-flex;
    align-items: center;
    color: var(--color-primary);
    font-weight: 500;
    text-decoration: none;
    transition: opacity 0.2s ease;
    gap: 4px;
}

.read-more:hover {
    opacity: 0.7;
    gap: 8px;
}

.read-more::after {
    content: '→';
    transition: transform 0.2s ease;
}

.read-more:hover::after {
    transform: translateX(4px);
}

.blog-empty {
    text-align: center;
    padding: var(--spacing-xl) 0;
    color: var(--color-text-secondary);
}

/* ===================================
   3. 单篇文章页
   =================================== */
.blog-post {
    padding: var(--spacing-lg) 5%;
    width: 90%;
    max-width: 1200px;
    margin: var(--spacing-xl) auto var(--spacing-xl);
    background-color: var(--color-bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
}

.blog-post-header {
    position: relative;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.blog-post-header::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
    border-radius: 2px;
}

.blog-post-header h1 {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.blog-post-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    font-size: 14px;
    color: var(--color-text-secondary);
}

.blog-post-category {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-bg-white);
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
}

.blog-post-readtime {
    color: var(--color-text-secondary);
}

.blog-post-tags {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
    margin-top: var(--spacing-md);
}

.tag {
    background-color: var(--color-bg-card);
    color: var(--color-text-secondary);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    border: 1px solid var(--color-border);
}

.blog-post-content {
    color: var(--color-text-primary);
    line-height: 1.8;
    font-size: 16px;
    width: 100%;
    margin: 0 auto;
}

.blog-post-content h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: var(--spacing-lg) 0 var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.blog-post-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: var(--spacing-md) 0 var(--spacing-sm);
}

.blog-post-content p {
    margin-bottom: var(--spacing-md);
}

.blog-post-content ul,
.blog-post-content ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.blog-post-content li {
    margin-bottom: var(--spacing-xs);
}

.blog-post-content code {
    background-color: var(--color-bg-card);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-family: monospace;
    font-size: 14px;
    border: 1px solid var(--color-border);
}

.blog-post-content pre {
    background-color: var(--color-bg-card);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--color-border);
}

.blog-post-content blockquote {
    border-left: 4px solid var(--color-primary);
    padding-left: var(--spacing-md);
    margin: var(--spacing-md) 0;
    color: var(--color-text-secondary);
    font-style: italic;
    background-color: var(--color-bg-card);
    padding: var(--spacing-md);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

/* ===================================
   11. 表格样式
   =================================== */
.blog-post-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-lg) 0;
    font-size: 14px;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    table-layout: auto;
}

.blog-post-content table th,
.blog-post-content table td {
    padding: 12px 16px;
    text-align: left;
    border: 1px solid var(--color-border);
}

.blog-post-content table th {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-bg-white);
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.blog-post-content table tr:nth-child(even) {
    background-color: var(--color-bg-card);
}

.blog-post-content table tr:hover {
    background-color: rgba(26, 66, 207, 0.05);
}

/* 价格列右对齐 */
.blog-post-content table td:nth-child(5) {
    text-align: right;
    font-family: 'SF Mono', Monaco, 'Courier New', monospace;
    font-weight: 500;
}

/* 品牌名加粗 */
.blog-post-content table td:first-child {
    font-weight: 600;
    color: var(--color-primary);
}

/* 链接样式 */
.blog-post-content table td:last-child a {
    display: inline-block;
    padding: 4px 12px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-bg-white);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
    transition: var(--transition-fast);
}

.blog-post-content table td:last-child a:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(26, 66, 207, 0.3);
}

/* 移动端横向滚动 */
@media (max-width: 768px) {
    .blog-post-content table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }

    .blog-post-content table th,
    .blog-post-content table td {
        padding: 10px 12px;
        font-size: 12px;
    }
}

.blog-post-footer {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.2s ease;
}

.back-link:hover {
    opacity: 0.7;
}

.back-link::before {
    content: '←';
}

/* ===================================
   4. 分页组件
   =================================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.pagination-pages {
    display: flex;
    align-items: center;
    gap: 4px;
}

.pagination-prev,
.pagination-next {
    padding: 10px 20px;
    background-color: var(--color-bg-white);
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-fast);
}

.pagination-prev:hover,
.pagination-next:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-bg-white);
}

.pagination-disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.pagination-page {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
}

.pagination-page:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.pagination-current {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-bg-white);
    cursor: default;
}

.pagination-current:hover {
    border-color: var(--color-primary);
    color: var(--color-bg-white);
}

.pagination-ellipsis {
    padding: 0 8px;
    color: var(--color-text-secondary);
}

.pagination-current {
    color: var(--color-text-secondary);
    font-size: 14px;
    font-weight: 500;
    padding: 10px 16px;
    background-color: var(--color-bg-card);
    border-radius: var(--radius-sm);
}

/* ===================================
   5. 阅读进度条
   =================================== */
.read-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
    z-index: 1001;
    transition: width 0.1s ease;
    box-shadow: 0 0 10px rgba(var(--color-primary-rgb), 0.5);
}

/* ===================================
   6. 作者信息
   =================================== */
.blog-post-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-bg-card) 0%, var(--color-bg-page) 100%);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--color-border);
}

.author-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-bg-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 600;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(var(--color-primary-rgb), 0.3);
}

.author-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.author-name {
    font-weight: 600;
    font-size: 16px;
    color: var(--color-text-primary);
}

.author-bio {
    font-size: 14px;
    color: var(--color-text-secondary);
}

/* ===================================
   7. 分享按钮
   =================================== */
.blog-share {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin: var(--spacing-lg) 0;
}

.share-label {
    font-size: 14px;
    color: var(--color-text-secondary);
    font-weight: 500;
    margin-right: var(--spacing-xs);
}

.share-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
    color: white;
    font-size: 16px;
}

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.share-wechat {
    background-color: #07c160;
}

.share-wechat:hover {
    background-color: #06ad56;
}

.share-linkedin {
    background-color: #0a66c2;
}

.share-linkedin:hover {
    background-color: #0958a8;
}

.share-twitter {
    background-color: #000000;
}

.share-twitter:hover {
    background-color: #1a1a1a;
}

/* ===================================
   8. 相关推荐
   =================================== */
.blog-related {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.blog-related h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.blog-related h3::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 20px;
    background: linear-gradient(180deg, var(--color-primary), var(--color-primary-dark));
    border-radius: 2px;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.related-card {
    padding: var(--spacing-md);
    background-color: var(--color-bg-card);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    border: 1px solid transparent;
}

.related-card:hover {
    background-color: var(--color-bg-white);
    box-shadow: var(--shadow-card);
    border-color: var(--color-primary);
}

.related-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    font-size: 12px;
    color: var(--color-text-secondary);
}

.related-category {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-bg-white);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 500;
}

.related-card h4 {
    font-size: 14px;
    font-weight: 600;
    line-height: 1.4;
}

.related-card h4 a {
    color: var(--color-text-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.related-card h4 a:hover {
    color: var(--color-primary);
}

/* ===================================
   9. CTA 行动召唤
   =================================== */
.blog-cta {
    position: relative;
    margin-top: var(--spacing-xl);
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--radius-lg);
    text-align: center;
    color: var(--color-bg-white);
    overflow: hidden;
}

.blog-cta::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.blog-cta::after {
    content: '';
    position: absolute;
    bottom: -80%;
    left: -10%;
    width: 150px;
    height: 150px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
}

.blog-cta h3 {
    position: relative;
    z-index: 1;
    font-size: 24px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-bg-white);
}

.blog-cta p {
    position: relative;
    z-index: 1;
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: var(--spacing-lg);
}

.cta-button {
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    background-color: var(--color-bg-white);
    color: var(--color-primary);
    font-weight: 600;
    font-size: 16px;
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: var(--transition-fast);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

.cta-button::after {
    content: ' →';
    transition: transform 0.2s ease;
}

.cta-button:hover::after {
    transform: translateX(4px);
}

/* ===================================
   10. 底部
   =================================== */
.site-footer {
    text-align: center;
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-xl);
}

.site-footer p {
    margin: 0;
    color: var(--color-text-secondary);
    font-size: 14px;
}

/* ===================================
   13. 语言切换
   =================================== */
.lang-switch {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 12px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-secondary);
    text-decoration: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.lang-switch:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.lang-switch--hidden {
    display: none;
}

body[data-lang="zh"] .lang-switch[href="?lang=zh"],
body[data-lang="en"] .lang-switch[href="?lang=en"] {
    display: none;
}

body[data-lang="zh"] .lang-switch[href="?lang=en"],
body[data-lang="en"] .lang-switch[href="?lang=zh"] {
    display: inline-flex;
}

/* ===================================
   11. 响应式适配
   =================================== */
@media (max-width: 1024px) {
    .blog-list,
    .blog-post {
        margin-left: var(--spacing-md);
        margin-right: var(--spacing-md);
    }
}

/* ===================================
   移动端菜单按钮
   =================================== */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  padding: 0;
  background: transparent;
  border: none;
  cursor: pointer;
  margin-left: auto;
}

.mobile-menu-btn__line {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-text-primary);
  border-radius: 1px;
  transition: var(--transition-fast);
}

.mobile-menu-btn.active .mobile-menu-btn__line:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}

.mobile-menu-btn.active .mobile-menu-btn__line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active .mobile-menu-btn__line:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

@media (max-width: 768px) {
  /* 移动端菜单按钮 */
  .mobile-menu-btn {
    display: flex;
  }

  /* 导航 */
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-bg-white);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-md);
    z-index: 1000;
  }

  .nav.active {
    display: block;
  }

  .nav__list {
    flex-direction: column;
    gap: 8px;
  }

  .nav__item {
    width: 100%;
  }

  .nav__link {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
  }

  .nav__link:hover {
    background-color: var(--color-bg-card);
  }

  /* 语言切换器在小屏也正确显示 */
  .lang-switch {
    font-size: 12px;
    padding: 4px 8px;
  }

  /* 英雄区 */
    .blog-hero {
        padding: var(--spacing-section-mobile) var(--spacing-container);
    }

    .blog-hero::before {
        width: 200px;
        height: 200px;
        top: -50px;
        right: -50px;
    }

    .blog-hero h1 {
        font-size: 28px;
    }

    .blog-description {
        font-size: 16px;
    }

    /* 列表页 */
    .blog-list {
        padding: var(--spacing-lg) var(--spacing-container);
        margin: 0 var(--spacing-sm);
        border-radius: var(--radius-md);
    }

    .blog-list-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }

    .blog-card {
        padding-left: var(--spacing-card-inner);
        border-left-width: 3px;
    }

    .blog-card h2 {
        font-size: 18px;
    }

    .blog-card-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }

    .blog-cards {
        gap: var(--spacing-md);
    }

    /* 文章页 */
    .blog-post {
        padding: var(--spacing-lg) var(--spacing-container);
        margin: 0 var(--spacing-sm) var(--spacing-lg);
        border-radius: var(--radius-md);
    }

    .blog-post-header h1 {
        font-size: 24px;
        line-height: 1.3;
    }

    .blog-post-content {
        font-size: 15px;
    }

    .blog-post-content h2 {
        font-size: 20px;
    }

    .blog-post-content h3 {
        font-size: 17px;
    }

    .blog-post-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }

    .blog-post-readtime {
        order: -1;
    }

    .blog-post-tags {
        gap: var(--spacing-xs);
    }

    /* 作者信息 */
    .blog-post-author {
        flex-direction: column;
        text-align: center;
        padding: var(--spacing-md);
    }

    /* 分享按钮 */
    .blog-share {
        justify-content: center;
        flex-wrap: wrap;
    }

    /* 相关推荐 */
    .related-grid {
        grid-template-columns: 1fr;
    }

    /* CTA */
    .blog-cta {
        padding: var(--spacing-lg);
        margin: var(--spacing-lg) 0;
        border-radius: var(--radius-md);
    }

    .blog-cta h3 {
        font-size: 18px;
    }

    .blog-cta p {
        font-size: 14px;
    }

    .cta-button {
        width: 100%;
        text-align: center;
    }

    /* 导航 */
    .header__inner {
        flex-wrap: wrap;
    }

    /* 底部 */
    .site-footer {
        padding: var(--spacing-md) 0;
        text-align: center;
    }

    .site-footer p {
        margin: 0;
    }
}