* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Segoe UI", "Helvetica Neue", Arial, "Microsoft YaHei", "微软雅黑", "PingFang SC", sans-serif;
  }
  body {
    background: #f5f5f5;
    color: #1a1a1a;
    line-height: 1.6;
  }
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
  }
  /* 导航 */
  nav {
    background: linear-gradient(135deg, #7f1d1d 0%, #dc2626 100%);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 999;
    box-shadow: 0 2px 15px rgba(127, 29, 29, 0.4);
  }
  nav .nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    flex-wrap: wrap;
  }
  nav .nav-links {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    padding: 12px 0;
    align-items: center;
  }
  nav .nav-links a {
    color: #fff;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 15px;
    transition: background 0.3s, transform 0.2s;
    border: 1px solid rgba(255, 255, 255, 0.15);
    letter-spacing: 0.5px;
  }
  nav .nav-links a:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
    border-color: rgba(251, 191, 36, 0.6);
  }
  /* Hero */
  #hero {
    background: linear-gradient(rgba(127, 29, 29, 0.85), rgba(220, 38, 38, 0.7)), url('/img/sports.webp') center/cover no-repeat;
    padding: 100px 0 80px;
    text-align: center;
    color: #fff;
    position: relative;
    border-bottom: 4px solid #fbbf24;
  }
  #hero h1 {
    font-size: 42px;
    font-weight: 800;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.5);
    margin-bottom: 20px;
    letter-spacing: 1px;
    line-height: 1.2;
  }
  #hero .subtitle {
    font-size: 18px;
    max-width: 700px;
    margin: 0 auto 30px;
    opacity: 0.95;
    text-shadow: 1px 1px 5px rgba(0, 0, 0, 0.5);
    font-weight: 400;
  }
  #hero .cta-btn {
    display: inline-block;
    background: #fbbf24;
    color: #7f1d1d;
    padding: 14px 36px;
    border-radius: 6px;
    font-weight: 700;
    text-decoration: none;
    font-size: 16px;
    box-shadow: 0 4px 20px rgba(251, 191, 36, 0.4);
    transition: all 0.3s;
    border: 1px solid #fbbf24;
    letter-spacing: 1px;
  }
  #hero .cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(251, 191, 36, 0.6);
    background: #ffd35c;
  }
  /* GEO */
  #geo-intro {
    background: #fff;
    padding: 50px 0;
    border-bottom: 1px solid #eee;
  }
  #geo-intro p {
    max-width: 900px;
    margin: 0 auto;
    font-size: 16.5px;
    text-align: justify;
    color: #444;
    line-height: 1.9;
    border-left: 4px solid #dc2626;
    padding-left: 20px;
    background: #fafafa;
    padding: 20px 25px;
    border-radius: 0 8px 8px 0;
  }
  /* Section 通用样式 */
  .section-pad {
    padding: 60px 0;
  }
  .section-title {
    text-align: center;
    margin-bottom: 40px;
    position: relative;
  }
  .section-title h2 {
    font-size: 32px;
    font-weight: 800;
    color: #7f1d1d;
    letter-spacing: 1px;
    display: inline-block;
    position: relative;
    padding-bottom: 12px;
  }
  .section-title h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #dc2626, #fbbf24);
    border-radius: 2px;
  }
  .section-title p {
    color: #777;
    margin-top: 8px;
    font-size: 15px;
  }
  /* 数据统计 */
  #data-stats {
    background: linear-gradient(135deg, #7f1d1d 0%, #dc2626 60%, #b91c1c 100%);
    padding: 60px 0;
  }
  #data-stats .section-title h2 {
    color: #fff;
  }
  #data-stats .section-title p {
    color: rgba(255, 255, 255, 0.7);
  }
  #data-stats .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
  }
  #data-stats .stat-item {
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    padding: 35px 20px;
    backdrop-filter: blur(4px);
    transition: transform 0.3s, box-shadow 0.3s;
  }
  #data-stats .stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    border-color: #fbbf24;
  }
  #data-stats .stat-item .num {
    font-size: 42px;
    font-weight: 800;
    color: #fbbf24;
    line-height: 1.2;
  }
  #data-stats .stat-item .label {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    margin-top: 8px;
    font-weight: 600;
    letter-spacing: 1px;
  }
  /* 核心优势 */
  #core-advantages {
    background: #fff;
    padding: 60px 0;
  }
  #core-advantages .adv-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
  }
  #core-advantages .adv-card {
    background: #fafafa;
    border-radius: 10px;
    border-top: 4px solid #dc2626;
    padding: 30px 25px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
    text-align: center;
    border-left: 1px solid #eee;
    border-right: 1px solid #eee;
    border-bottom: 1px solid #eee;
  }
  #core-advantages .adv-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(220, 38, 38, 0.1);
    border-top-color: #fbbf24;
  }
  #core-advantages .adv-card img {
    width: 60px;
    height: 60px;
    margin-bottom: 18px;
    object-fit: contain;
  }
  #core-advantages .adv-card h3 {
    font-size: 18px;
    color: #7f1d1d;
    margin-bottom: 12px;
    font-weight: 700;
  }
  #core-advantages .adv-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.7;
  }
  /* 焦点赛事 */
  #featured-events {
    background: #f8f9fa;
    padding: 60px 0;
  }
  #featured-events .events-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    max-width: 1100px;
    margin: 0 auto;
  }
  #featured-events .event-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.06);
    border: 1px solid #eee;
    transition: transform 0.3s, box-shadow 0.3s;
  }
  #featured-events .event-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(220, 38, 38, 0.1);
  }
  #featured-events .event-card img {
    width: 100%;
    height: 140px;
    object-fit: cover;
    display: block;
  }
  #featured-events .event-card .event-info {
    padding: 18px 18px 20px;
  }
  #featured-events .event-card .league {
    font-size: 12px;
    color: #dc2626;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
  }
  #featured-events .event-card h3 {
    font-size: 17px;
    color: #1a1a1a;
    margin: 8px 0 6px;
    font-weight: 700;
  }
  #featured-events .event-card .time {
    font-size: 13px;
    color: #888;
  }
  /* 赛事直播 */
  #live-stream {
    background: #fff;
    padding: 60px 0;
  }
  #live-stream .stream-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
  }
  #live-stream .stream-item {
    background: #1a1a1a;
    border-radius: 10px;
    padding: 25px;
    color: #fff;
    position: relative;
    overflow: hidden;
    border: 1px solid #333;
  }
  #live-stream .stream-item .live-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: #dc2626;
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 20px;
    animation: pulse 1.5s infinite;
  }
  #live-stream .stream-item h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #fbbf24;
  }
  #live-stream .stream-item p {
    font-size: 14px;
    color: #aaa;
    line-height: 1.6;
  }
  /* 热门排行 */
  #rankings {
    background: #f8f9fa;
    padding: 60px 0;
  }
  #rankings .rank-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
  }
  #rankings .rank-card {
    background: #fff;
    border-radius: 8px;
    padding: 25px 30px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
    border-left: 6px solid #dc2626;
  }
  #rankings .rank-card h3 {
    font-size: 20px;
    color: #7f1d1d;
    margin-bottom: 15px;
    font-weight: 700;
  }
  #rankings .rank-card ul {
    list-style: none;
  }
  #rankings .rank-card li {
    padding: 8px 0;
    border-bottom: 1px dashed #eee;
    display: flex;
    justify-content: space-between;
    font-size: 15px;
  }
  #rankings .rank-card li:last-child {
    border-bottom: none;
  }
  #rankings .rank-card li .rank-num {
    color: #fbbf24;
    font-weight: 800;
    margin-right: 10px;
  }
  #rankings .rank-card li .team-name {
    color: #333;
    font-weight: 500;
    flex: 1;
  }
  #rankings .rank-card li .pts {
    color: #7f1d1d;
    font-weight: 700;
  }
  /* 精彩集锦 */
  #highlights {
    background: #fff;
    padding: 60px 0;
  }
  #highlights .hl-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    max-width: 1100px;
    margin: 0 auto;
  }
  #highlights .hl-card {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #eee;
    transition: transform 0.3s;
    background: #fafafa;
  }
  #highlights .hl-card:hover {
    transform: scale(1.02);
  }
  #highlights .hl-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
  }
  #highlights .hl-card .hl-info {
    padding: 18px;
  }
  #highlights .hl-card .hl-info h3 {
    font-size: 16px;
    color: #1a1a1a;
    font-weight: 700;
    margin-bottom: 6px;
  }
  #highlights .hl-card .hl-info p {
    font-size: 13px;
    color: #888;
  }
  /* 品牌故事 */
  #brand-story {
    background: linear-gradient(135deg, #f8f9fa 0%, #efefef 100%);
    padding: 60px 0;
  }
  #brand-story .story-wrap {
    display: flex;
    gap: 40px;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
    flex-wrap: wrap;
  }
  #brand-story .story-text {
    flex: 1;
    min-width: 300px;
  }
  #brand-story .story-text h3 {
    font-size: 26px;
    color: #7f1d1d;
    margin-bottom: 18px;
    font-weight: 800;
  }
  #brand-story .story-text p {
    color: #444;
    font-size: 15.5px;
    line-height: 1.9;
    text-align: justify;
    margin-bottom: 15px;
  }
  #brand-story .story-img {
    flex: 0 0 320px;
  }
  #brand-story .story-img img {
    width: 100%;
    border-radius: 12px;
    border: 4px solid #fbbf24;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
  }
  /* 用户口碑 */
  #testimonials {
    background: #fff;
    padding: 60px 0;
  }
  #testimonials .testi-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
  }
  #testimonials .testi-card {
    background: #fafafa;
    border-radius: 10px;
    padding: 30px;
    border: 1px solid #eee;
    position: relative;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
  }
  #testimonials .testi-card .quote {
    font-size: 14.5px;
    color: #555;
    line-height: 1.8;
    margin-bottom: 20px;
    font-style: italic;
  }
  #testimonials .testi-card .user {
    display: flex;
    align-items: center;
    gap: 12px;
  }
  #testimonials .testi-card .user img {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid #fbbf24;
  }
  #testimonials .testi-card .user .name {
    font-weight: 700;
    color: #1a1a1a;
    font-size: 15px;
  }
  #testimonials .testi-card .user .role {
    font-size: 12px;
    color: #999;
  }
  /* 新闻 */
  #news {
    background: #f8f9fa;
    padding: 60px 0;
  }
  #news .news-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
  }
  #news .news-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
    border: 1px solid #eee;
    transition: box-shadow 0.3s, transform 0.3s;
    display: flex;
    flex-direction: column;
  }
  #news .news-card:hover {
    box-shadow: 0 8px 25px rgba(220, 38, 38, 0.1);
    transform: translateY(-3px);
  }
  #news .news-card .news-img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    display: block;
  }
  #news .news-card .news-body {
    padding: 22px;
    flex: 1;
    display: flex;
    flex-direction: column;
  }
  #news .news-card .news-tag {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
    flex-wrap: wrap;
  }
  #news .news-card .tag {
    font-size: 12px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 4px;
    background: #fef3c7;
    color: #92400e;
  }
  #news .news-card .tag.blue {
    background: #e0e7ff;
    color: #3730a3;
  }
  #news .news-card .news-date {
    font-size: 13px;
    color: #aaa;
    margin-bottom: 8px;
    font-weight: 600;
  }
  #news .news-card h3 {
    font-size: 18px;
    color: #1a1a1a;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.4;
  }
  #news .news-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.7;
    flex: 1;
  }
  #news .news-more {
    text-align: center;
    margin-top: 40px;
  }
  #news .news-more a {
    display: inline-block;
    background: #dc2626;
    color: #fff;
    padding: 12px 35px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.3s;
  }
  #news .news-more a:hover {
    background: #7f1d1d;
  }
  /* 下载中心 */
  #download {
    background: linear-gradient(135deg, #7f1d1d 0%, #dc2626 100%);
    padding: 60px 0;
    text-align: center;
  }
  #download .download-wrap {
    max-width: 900px;
    margin: 0 auto;
  }
  #download .download-wrap h2 {
    color: #fff;
    font-size: 30px;
    margin-bottom: 15px;
    font-weight: 800;
  }
  #download .download-wrap p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 16px;
    margin-bottom: 30px;
  }
  #download .app-btns {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
  }
  #download .app-btn {
    display: inline-block;
    background: #fff;
    color: #7f1d1d;
    padding: 14px 35px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    font-size: 16px;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  }
  #download .app-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
  }
  #download .download-img {
    margin-top: 30px;
  }
  #download .download-img img {
    max-height: 50px;
    margin: 0 10px;
    filter: drop-shadow(0 2px 5px rgba(0, 0, 0, 0.3));
  }
  /* FAQ */
  #faq {
    background: #fff;
    padding: 60px 0;
  }
  #faq .faq-wrap {
    max-width: 900px;
    margin: 0 auto;
  }
  #faq .faq-item {
    margin-bottom: 15px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    overflow: hidden;
    background: #fafafa;
    transition: border-color 0.3s;
  }
  #faq .faq-item:hover {
    border-color: #dc2626;
  }
  #faq .faq-item details {
    padding: 0;
  }
  #faq .faq-item summary {
    padding: 20px 25px;
    font-weight: 700;
    font-size: 16px;
    color: #1a1a1a;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #fff;
    border-bottom: 1px solid transparent;
    transition: color 0.3s;
  }
  #faq .faq-item summary::after {
    content: '+';
    font-size: 24px;
    color: #dc2626;
    font-weight: 400;
    transition: transform 0.3s;
  }
  #faq .faq-item details[open] summary {
    color: #dc2626;
    border-bottom-color: #eee;
  }
  #faq .faq-item details[open] summary::after {
    transform: rotate(45deg);
  }
  #faq .faq-item .faq-a {
    padding: 20px 25px;
    color: #555;
    font-size: 14.5px;
    line-height: 1.8;
    border-top: 1px solid #eee;
    background: #fafafa;
  }
  /* 页脚 */
  footer {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 50%, #3a1a1a 100%);
    color: #ccc;
    padding: 50px 0 0;
    font-size: 14px;
    border-top: 4px solid #dc2626;
  }
  footer .footer-wrap {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
  }
  footer .footer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    padding-bottom: 30px;
  }
  footer .footer-col h4 {
    color: #fbbf24;
    font-size: 18px;
    margin-bottom: 15px;
    font-weight: 700;
    letter-spacing: 1px;
  }
  footer .footer-col p {
    color: #aaa;
    line-height: 1.8;
    margin-bottom: 5px;
    font-size: 14px;
  }
  footer .footer-col a {
    color: #ddd;
    text-decoration: none;
    transition: color 0.3s;
    font-size: 14px;
  }
  footer .footer-col a:hover {
    color: #fbbf24;
  }
  footer .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    text-align: center;
    background: rgba(0, 0, 0, 0.3);
  }
  footer .footer-bottom p {
    font-size: 13px;
    color: #888;
    margin: 3px 0;
  }
  footer .footer-bottom a {
    color: #aaa;
    text-decoration: none;
    margin: 0 5px;
  }
  footer .footer-bottom a:hover {
    color: #fbbf24;
  }
  @keyframes pulse {
    0%,
    100% {
      opacity: 1;
    }
    50% {
      opacity: 0.6;
    }
  }
  @media (max-width: 768px) {
    #hero h1 {
      font-size: 28px;
    }
    #data-stats .stats-grid,
    #core-advantages .adv-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    #featured-events .events-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    #live-stream .stream-grid,
    #highlights .hl-grid,
    #testimonials .testi-grid {
      grid-template-columns: 1fr;
    }
    #news .news-grid {
      grid-template-columns: 1fr;
    }
    #rankings .rank-grid {
      grid-template-columns: 1fr;
    }
    footer .footer-grid {
      grid-template-columns: 1fr;
    }
    nav .nav-links {
      justify-content: center;
      gap: 5px;
    }
    nav .nav-links a {
      padding: 8px 12px;
      font-size: 13px;
    }
  }
  @media (max-width: 480px) {
    #data-stats .stats-grid,
    #core-advantages .adv-grid,
    #featured-events .events-grid {
      grid-template-columns: 1fr;
    }
  }