/* ========================================
   网球 - 马赛克杂志风格样式
   www.youyangwu.cn - 网球比分直播平台
   ======================================== */

/* CSS 变量 */
:root {
  --accent-color: #2e7d32;
  --accent-light: #4caf50;
  --accent-dark: #1b5e20;
  --text-primary: #1a1a1a;
  --text-secondary: #666;
  --text-muted: #999;
  --bg-primary: #fff;
  --bg-secondary: #f5f5f5;
  --bg-dark: #1a1a1a;
  --border-color: #e0e0e0;
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --transition: all 0.3s ease;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
}

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

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

ul, ol {
  list-style: none;
}

/* ========================================
   布局容器
   ======================================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ========================================
   页头
   ======================================== */
.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: 70px;
}

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

.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: 20px;
  font-weight: bold;
}

.logo-text {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
}

.logo-text span {
  color: var(--accent-color);
}

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

.nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 0;
  position: relative;
}

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

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

/* ========================================
   面包屑
   ======================================== */
.breadcrumb {
  background: var(--bg-secondary);
  padding: 12px 0;
  font-size: 14px;
}

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

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

.breadcrumb span {
  color: var(--text-muted);
  margin: 0 8px;
}

.breadcrumb .current {
  color: var(--text-primary);
}

/* ========================================
   首页 - 马赛克网格布局
   ======================================== */
.hero-section {
  padding: 40px 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
  margin-bottom: 40px;
}

.headline-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 400px;
}

.headline-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}

.headline-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 40px;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  color: #fff;
}

.category-tag {
  display: inline-block;
  padding: 6px 14px;
  background: var(--accent-color);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}

.headline-title {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 12px;
}

.headline-meta {
  font-size: 14px;
  opacity: 0.8;
}

.sidebar-widgets {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.widget {
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  padding: 20px;
}

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

.score-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
}

.score-item:last-child {
  border-bottom: none;
}

.score-players {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.player {
  font-size: 14px;
  font-weight: 500;
}

.player.winner {
  color: var(--accent-color);
  font-weight: 600;
}

.score-result {
  text-align: right;
}

.score-sets {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.score-status {
  font-size: 12px;
  color: var(--accent-color);
}

/* 马赛克内容网格 */
.mosaic-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.mosaic-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-secondary);
}

.mosaic-item.large {
  grid-row: span 2;
}

.mosaic-item.wide {
  grid-column: span 2;
}

.mosaic-image {
  position: relative;
  overflow: hidden;
}

.mosaic-item:not(.large) .mosaic-image {
  aspect-ratio: 16/10;
}

.mosaic-item.large .mosaic-image {
  aspect-ratio: 3/4;
  height: 100%;
}

.mosaic-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.mosaic-item:hover .mosaic-image img {
  transform: scale(1.05);
}

.mosaic-content {
  padding: 16px;
}

.mosaic-item.large .mosaic-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  color: #fff;
}

.mosaic-category {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--accent-color);
  margin-bottom: 8px;
}

.mosaic-item.large .mosaic-category {
  color: var(--accent-light);
}

.mosaic-title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 8px;
}

.mosaic-item.large .mosaic-title {
  font-size: 20px;
}

.mosaic-meta {
  font-size: 12px;
  color: var(--text-muted);
}

.mosaic-item.large .mosaic-meta {
  color: rgba(255,255,255,0.7);
}

/* ========================================
   三栏推荐区域
   ======================================== */
.recommended-section {
  background: var(--bg-secondary);
  padding: 48px 0;
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.section-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--accent-color);
}

.article-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.article-item {
  display: flex;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

.article-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.article-number {
  width: 28px;
  height: 28px;
  background: var(--accent-color);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.article-item:nth-child(2) .article-number { background: #757575; }
.article-item:nth-child(3) .article-number { background: #9e9e9e; }

.article-info h4 {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 4px;
}

.article-info h4:hover {
  color: var(--accent-color);
}

.article-date {
  font-size: 12px;
  color: var(--text-muted);
}

/* ========================================
   分类页
   ======================================== */
.category-hero {
  padding: 40px 0;
}

.category-hero-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
}

.category-featured {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 320px;
}

.category-featured img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}

.category-featured-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 32px;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  color: #fff;
}

.category-featured-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
}

.category-featured-desc {
  font-size: 14px;
  opacity: 0.9;
  line-height: 1.6;
}

/* 分类内容网格 */
.category-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding: 40px 0;
}

.category-item-lead {
  grid-column: span 1;
  grid-row: span 2;
}

.category-item {
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.category-item-image {
  aspect-ratio: 16/10;
  overflow: hidden;
}

.category-item-lead .category-item-image {
  aspect-ratio: 3/4;
  height: calc(100% - 100px);
}

.category-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.category-item:hover .category-item-image img {
  transform: scale(1.05);
}

.category-item-content {
  padding: 16px;
}

.category-item-title {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 8px;
}

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

.category-item-meta {
  font-size: 12px;
  color: var(--text-muted);
}

/* ========================================
   文章详情页
   ======================================== */
.article-section {
  padding: 40px 0;
}

.article-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
}

.article-header {
  margin-bottom: 32px;
}

.article-category {
  display: inline-block;
  padding: 6px 14px;
  background: var(--accent-color);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}

.article-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 20px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 14px;
  color: var(--text-secondary);
}

.article-meta span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.article-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 32px;
}

.article-image img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}

.article-body {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-primary);
}

.article-body p {
  margin-bottom: 20px;
}

.article-body h2 {
  font-size: 24px;
  font-weight: 700;
  margin: 32px 0 16px;
}

.article-body h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 24px 0 12px;
}

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

.article-tags {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}

.article-tags-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
}

.tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  padding: 6px 14px;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-secondary);
}

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

/* 侧边栏 */
.sidebar-section {
  margin-bottom: 32px;
}

.sidebar-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--accent-color);
}

.author-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
}

.author-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto 16px;
  object-fit: cover;
}

.author-name {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.author-role {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.author-bio {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.related-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.related-item {
  display: flex;
  gap: 12px;
}

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

.related-title {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
}

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

/* ========================================
   404页面
   ======================================== */
.error-section {
  min-height: calc(100vh - 70px - 200px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  text-align: center;
}

.error-content {
  max-width: 500px;
}

.error-code {
  font-size: 120px;
  font-weight: 700;
  color: var(--accent-color);
  line-height: 1;
  margin-bottom: 16px;
}

.error-title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 16px;
}

.error-desc {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: var(--transition);
}

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

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

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

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

/* ========================================
   页脚
   ======================================== */
.footer {
  background: var(--bg-dark);
  color: #fff;
  padding: 48px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

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

.footer-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  line-height: 1.6;
}

.footer-title {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 16px;
  color: rgba(255,255,255,0.9);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
}

.footer-links a:hover {
  color: var(--accent-light);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 1024px) {
  .hero-grid,
  .category-hero-grid,
  .article-grid {
    grid-template-columns: 1fr;
  }

  .mosaic-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .mosaic-item.large {
    grid-row: span 1;
    grid-column: span 2;
  }

  .category-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .category-item-lead {
    grid-column: span 1;
    grid-row: span 1;
  }

  .section-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
    height: auto;
    padding: 16px 0;
    gap: 16px;
  }

  .nav {
    width: 100%;
    justify-content: center;
    gap: 20px;
    padding-top: 8px;
    border-top: 1px solid var(--border-color);
  }

  .headline-card {
    min-height: 300px;
  }

  .headline-content {
    padding: 24px;
  }

  .headline-title {
    font-size: 20px;
  }

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

  .mosaic-item.large,
  .mosaic-item.wide {
    grid-column: span 1;
  }

  .mosaic-item.large .mosaic-image {
    aspect-ratio: 16/10;
    height: auto;
  }

  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .article-title {
    font-size: 24px;
  }

  .error-code {
    font-size: 80px;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .category-grid {
    grid-template-columns: 1fr;
  }

  .error-actions {
    flex-direction: column;
  }
}