/* ========================================
   腕表 - 古董腕表收藏资讯网站样式
   www.wandiaocang.cn
   ======================================== */

/* CSS 变量 */
:root {
  --accent-color: #8b4513;
  --accent-light: #d4a574;
  --accent-dark: #5c2e0c;
  --text-primary: #333;
  --text-secondary: #666;
  --text-muted: #999;
  --bg-primary: #fff;
  --bg-secondary: #f8f6f3;
  --bg-dark: #2c2420;
  --border-color: #e5e0d8;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-hover: 0 4px 16px rgba(0,0,0,0.12);
  --radius: 4px;
  --radius-lg: 8px;
  --transition: all 0.3s ease;
  --font-serif: Georgia, 'Times New Roman', serif;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* 重置 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-secondary);
}

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--accent-dark);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

/* ========================================
   布局
   ======================================== */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 三栏布局 */
.layout-three-col {
  display: grid;
  grid-template-columns: 200px 1fr 280px;
  gap: 24px;
  padding: 24px 0;
}

/* 两栏布局 */
.layout-two-col {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 24px;
  padding: 24px 0;
}

/* ========================================
   头部
   ======================================== */

.header {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-dark);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.2rem;
}

.nav {
  display: flex;
  gap: 32px;
}

.nav a {
  color: var(--text-primary);
  font-weight: 500;
  padding: 8px 0;
  position: relative;
}

.nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-color);
  transition: var(--transition);
}

.nav a:hover::after,
.nav a.active::after {
  width: 100%;
}

.nav a.active {
  color: var(--accent-color);
}

.search-box {
  display: flex;
  align-items: center;
  background: var(--bg-secondary);
  border-radius: 24px;
  padding: 8px 16px;
  width: 240px;
}

.search-box input {
  border: none;
  background: none;
  outline: none;
  flex: 1;
  font-size: 0.9rem;
}

.search-box button {
  border: none;
  background: none;
  cursor: pointer;
  color: var(--text-muted);
}

/* ========================================
   页脚
   ======================================== */

.footer {
  background: var(--bg-dark);
  color: #aaa;
  padding: 48px 0 24px;
  margin-top: 48px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 32px;
}

.footer-brand .logo {
  color: #fff;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.8;
}

.footer-title {
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: #aaa;
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid #444;
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
}

/* ========================================
   侧边栏组件
   ======================================== */

.sidebar-section {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}

.sidebar-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  padding-bottom: 12px;
  border-bottom: 2px solid var(--accent-color);
  margin-bottom: 16px;
}

/* 导航菜单 */
.side-nav li {
  margin-bottom: 4px;
}

.side-nav a {
  display: block;
  padding: 10px 12px;
  color: var(--text-secondary);
  border-radius: var(--radius);
  font-size: 0.95rem;
}

.side-nav a:hover,
.side-nav a.active {
  background: var(--bg-secondary);
  color: var(--accent-color);
}

/* 分类列表 */
.category-list li {
  margin-bottom: 8px;
}

.category-list a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.category-list a:hover {
  color: var(--accent-color);
}

.category-list .count {
  background: var(--bg-secondary);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* 热门排行 */
.hot-list li {
  display: flex;
  gap: 12px;
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

.hot-list li:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.hot-rank {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  flex-shrink: 0;
}

.hot-rank.top {
  background: var(--accent-color);
  color: #fff;
}

.hot-content {
  flex: 1;
}

.hot-content a {
  color: var(--text-primary);
  font-size: 0.9rem;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.hot-content a:hover {
  color: var(--accent-color);
}

.hot-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* 标签云 */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-cloud a {
  padding: 6px 12px;
  background: var(--bg-secondary);
  border-radius: 16px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.tag-cloud a:hover {
  background: var(--accent-color);
  color: #fff;
}

/* 文章列表（侧边栏） */
.side-post {
  display: flex;
  gap: 12px;
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

.side-post:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.side-post-thumb {
  width: 80px;
  height: 60px;
  border-radius: var(--radius);
  object-fit: cover;
  flex-shrink: 0;
}

.side-post-content {
  flex: 1;
}

.side-post-title {
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.side-post-title:hover {
  color: var(--accent-color);
}

.side-post-date {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ========================================
   内容卡片
   ======================================== */

.card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-hover);
}

.card-image {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}

.card-body {
  padding: 20px;
}

.card-category {
  font-size: 0.75rem;
  color: var(--accent-color);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.card-title:hover {
  color: var(--accent-color);
}

.card-excerpt {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.card-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* 特色卡片（大） */
.card-featured {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 0;
}

.card-featured .card-image {
  aspect-ratio: auto;
  height: 100%;
  min-height: 300px;
}

.card-featured .card-body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 32px;
}

.card-featured .card-title {
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.card-featured .card-excerpt {
  font-size: 1rem;
  -webkit-line-clamp: 3;
}

/* ========================================
   首页组件
   ======================================== */

/* Hero区域 */
.hero {
  background: linear-gradient(135deg, var(--bg-dark) 0%, #3d3229 100%);
  color: #fff;
  padding: 64px 0;
  text-align: center;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.hero-desc {
  font-size: 1.1rem;
  color: #ccc;
  max-width: 600px;
  margin: 0 auto 32px;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
}

.hero-stat {
  text-align: center;
}

.hero-stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-light);
}

.hero-stat-label {
  font-size: 0.9rem;
  color: #999;
}

/* 区块标题 */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.section-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  padding-left: 12px;
  border-left: 4px solid var(--accent-color);
}

.section-more {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.section-more:hover {
  color: var(--accent-color);
}

/* 内容网格 */
.content-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

/* ========================================
   分类页组件
   ======================================== */

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.breadcrumb a {
  color: var(--text-secondary);
}

.breadcrumb a:hover {
  color: var(--accent-color);
}

/* 分类头部 */
.category-header {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}

.category-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.category-desc {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* 内容列表 */
.content-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.list-item {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 20px;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.list-item:hover {
  box-shadow: var(--shadow-hover);
}

.list-item-image {
  width: 100%;
  height: 100%;
  min-height: 160px;
  object-fit: cover;
}

.list-item-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
}

.list-item-category {
  font-size: 0.75rem;
  color: var(--accent-color);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.list-item-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.list-item-title:hover {
  color: var(--accent-color);
}

.list-item-excerpt {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.list-item-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 32px;
}

.pagination a,
.pagination span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  color: var(--text-secondary);
  background: var(--bg-primary);
  box-shadow: var(--shadow);
}

.pagination a:hover {
  background: var(--accent-color);
  color: #fff;
}

.pagination .current {
  background: var(--accent-color);
  color: #fff;
}

.pagination .disabled {
  color: var(--text-muted);
  cursor: not-allowed;
}

/* 筛选器 */
.filter-group {
  margin-bottom: 20px;
}

.filter-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
  display: block;
}

.filter-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.filter-option {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  cursor: pointer;
}

.filter-option input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent-color);
}

/* ========================================
   文章页组件
   ======================================== */

/* 文章头部 */
.article-header {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}

.article-title {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.article-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
}

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

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

.author-title {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.article-info {
  display: flex;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.article-info span {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* 特色图片 */
.article-image {
  width: 100%;
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
}

/* 文章内容 */
.article-content {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow);
  font-size: 1.05rem;
  line-height: 1.8;
}

.article-content h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 32px 0 16px;
  color: var(--text-primary);
}

.article-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 24px 0 12px;
  color: var(--text-primary);
}

.article-content p {
  margin-bottom: 16px;
  color: var(--text-secondary);
}

.article-content img {
  border-radius: var(--radius);
  margin: 24px 0;
}

.article-content blockquote {
  border-left: 4px solid var(--accent-color);
  padding-left: 20px;
  margin: 24px 0;
  font-style: italic;
  color: var(--text-secondary);
}

.article-content ul,
.article-content ol {
  margin: 16px 0;
  padding-left: 24px;
}

.article-content ul li {
  list-style: disc;
  margin-bottom: 8px;
}

.article-content ol li {
  list-style: decimal;
  margin-bottom: 8px;
}

/* 目录 */
.toc {
  position: sticky;
  top: 88px;
}

.toc-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toc-list a {
  display: block;
  padding: 8px 12px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  border-radius: var(--radius);
  border-left: 2px solid transparent;
}

.toc-list a:hover,
.toc-list a.active {
  background: var(--bg-secondary);
  color: var(--accent-color);
  border-left-color: var(--accent-color);
}

.toc-list .toc-h2 {
  padding-left: 12px;
}

.toc-list .toc-h3 {
  padding-left: 24px;
  font-size: 0.85rem;
}

/* 作者卡片 */
.author-card {
  display: flex;
  gap: 16px;
  align-items: center;
}

.author-card .author-avatar {
  width: 64px;
  height: 64px;
}

.author-card .author-name {
  font-size: 1.1rem;
}

.author-card .author-bio {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* 分享按钮 */
.share-buttons {
  display: flex;
  gap: 12px;
}

.share-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  transition: var(--transition);
}

.share-btn:hover {
  background: var(--accent-color);
  color: #fff;
}

/* 相关文章 */
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.related-item {
  display: block;
}

.related-thumb {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 12px;
}

.related-title {
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-title:hover {
  color: var(--accent-color);
}

/* ========================================
   404页面
   ======================================== */

.error-page {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 64px 20px;
}

.error-code {
  font-size: 8rem;
  font-weight: 700;
  color: var(--accent-color);
  line-height: 1;
  margin-bottom: 16px;
  opacity: 0.8;
}

.error-title {
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.error-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 400px;
}

.error-actions {
  display: flex;
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--accent-color);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-dark);
  color: #fff;
}

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: var(--border-color);
}

/* ========================================
   响应式设计
   ======================================== */

@media (max-width: 1024px) {
  .layout-three-col {
    grid-template-columns: 180px 1fr;
  }

  .layout-three-col .sidebar-right {
    display: none;
  }

  .layout-two-col {
    grid-template-columns: 1fr;
  }

  .layout-two-col .sidebar-right {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
    height: auto;
    padding: 12px 0;
    gap: 12px;
  }

  .nav {
    order: 3;
    width: 100%;
    justify-content: center;
    gap: 20px;
  }

  .search-box {
    width: 160px;
  }

  .layout-three-col {
    grid-template-columns: 1fr;
  }

  .layout-three-col .sidebar-left {
    display: none;
  }

  .hero-title {
    font-size: 1.75rem;
  }

  .hero-stats {
    gap: 24px;
  }

  .content-grid {
    grid-template-columns: 1fr;
  }

  .card-featured {
    grid-template-columns: 1fr;
  }

  .card-featured .card-image {
    min-height: 200px;
  }

  .list-item {
    grid-template-columns: 1fr;
  }

  .list-item-image {
    min-height: 180px;
  }

  .article-title {
    font-size: 1.5rem;
  }

  .article-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .error-code {
    font-size: 5rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero {
    padding: 40px 0;
  }

  .hero-title {
    font-size: 1.5rem;
  }

  .hero-desc {
    font-size: 0.95rem;
  }

  .hero-stat-value {
    font-size: 1.5rem;
  }

  .article-content {
    padding: 20px;
    font-size: 1rem;
  }

  .error-actions {
    flex-direction: column;
    width: 100%;
    padding: 0 20px;
  }

  .btn {
    width: 100%;
  }
}