* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  html {
    scroll-behavior: smooth;
  }
  body {
    font-family: "Segoe UI", "Helvetica Neue", Arial, "Microsoft YaHei", "微软雅黑", "PingFang SC", sans-serif;
    background: linear-gradient(160deg, #0f172a 0%, #0b1220 40%, #1e293b 100%);
    color: #e2e8f0;
    line-height: 1.65;
    overflow-x: hidden;
  }
  .main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 15, 30, 0.88);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(148, 163, 184, 0.15);
    z-index: 1000;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
  }
  .nav-links {
    display: flex;
    justify-content: center;
    gap: 2.2rem;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
    flex-wrap: wrap;
    list-style: none;
  }
  .nav-links a {
    color: #cbd5e1;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.02em;
    transition: color 0.3s, text-shadow 0.3s;
    padding: 0.4rem 0.6rem;
    border-radius: 6px;
  }
  .nav-links a:hover {
    color: #f8fafc;
    text-shadow: 0 0 12px rgba(148, 163, 184, 0.6);
    background: rgba(148, 163, 184, 0.08);
  }
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
  }
  .section-padding {
    padding: 4rem 1.5rem;
  }
  .section-header {
    text-align: center;
    margin-bottom: 2.5rem;
  }
  .section-header h2 {
    font-size: 1.9rem;
    font-weight: 700;
    background: linear-gradient(90deg, #f8fafc, #94a3b8, #f8fafc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
    letter-spacing: 0.02em;
  }
  .section-header p {
    color: #94a3b8;
    margin-top: 0.6rem;
    font-size: 1rem;
  }
  #geo-intro {
    padding: 7rem 1.5rem 3rem;
    text-align: center;
    max-width: 960px;
    margin: 0 auto;
  }
  #geo-intro h1 {
    font-size: 2.4rem;
    font-weight: 800;
    background: linear-gradient(135deg, #f8fafc 0%, #94a3b8 80%, #38bdf8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.8rem;
    line-height: 1.3;
  }
  #geo-intro p {
    font-size: 1.05rem;
    color: #cbd5e1;
    text-align: left;
    max-width: 860px;
    margin: 0 auto;
    line-height: 1.8;
    border-left: 3px solid rgba(148, 163, 184, 0.4);
    padding-left: 1.5rem;
    background: linear-gradient(90deg, rgba(15, 23, 42, 0.6), transparent);
    border-radius: 0 8px 8px 0;
  }
  .hero-section {
    padding: 4rem 1.5rem;
    position: relative;
    overflow: hidden;
  }
  .hero-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
  }
  .hero-grid {
    display: flex;
    gap: 2rem;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2rem;
  }
  .hero-grid img {
    width: 100%;
    max-width: 560px;
    border-radius: 16px;
    border: 1px solid rgba(148, 163, 184, 0.25);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  }
  .hero-text {
    max-width: 480px;
    text-align: left;
  }
  .hero-text h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #f8fafc;
  }
  .hero-text p {
    color: #94a3b8;
    font-size: 1.05rem;
    margin-bottom: 1.5rem;
  }
  .btn-metal {
    display: inline-block;
    padding: 0.8rem 2rem;
    background: linear-gradient(135deg, #94a3b8, #64748b);
    color: #0f172a;
    font-weight: 700;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    text-decoration: none;
    transition: transform 0.3s, box-shadow 0.3s;
    font-family: inherit;
    font-size: 1rem;
  }
  .btn-metal:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(148, 163, 184, 0.3);
  }
  .stats-section {
    padding: 4rem 1.5rem;
    background: linear-gradient(180deg, transparent, rgba(15, 23, 42, 0.8), transparent);
  }
  .stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
  }
  .stat-card {
    background: linear-gradient(145deg, rgba(15, 23, 42, 0.9), rgba(30, 41, 59, 0.7));
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 16px;
    padding: 2rem 1.5rem;
    text-align: center;
    transition: transform 0.3s, border-color 0.3s;
  }
  .stat-card:hover {
    transform: translateY(-6px);
    border-color: rgba(56, 189, 248, 0.5);
  }
  .stat-num {
    font-size: 2.4rem;
    font-weight: 800;
    background: linear-gradient(90deg, #f8fafc, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  .stat-label {
    color: #94a3b8;
    margin-top: 0.5rem;
    font-size: 0.95rem;
  }
  .features-section {
    padding: 4rem 1.5rem;
  }
  .features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
  }
  .feature-card {
    background: linear-gradient(145deg, rgba(15, 23, 42, 0.85), rgba(30, 41, 59, 0.65));
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 16px;
    padding: 2rem;
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
  }
  .feature-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, #94a3b8, transparent);
    opacity: 0.6;
  }
  .feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
  }
  .feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.8rem;
    color: #f8fafc;
  }
  .feature-card p {
    color: #94a3b8;
    font-size: 0.95rem;
    line-height: 1.6;
  }
  .feature-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
  }
  .events-section {
    padding: 4rem 1.5rem;
    background: linear-gradient(180deg, transparent, rgba(15, 23, 42, 0.6));
  }
  .events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.8rem;
    max-width: 1200px;
    margin: 0 auto;
  }
  .event-card {
    background: linear-gradient(145deg, rgba(30, 41, 59, 0.9), rgba(15, 23, 42, 0.85));
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
  }
  .event-card:hover {
    transform: scale(1.02);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
  }
  .event-card img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-bottom: 1px solid rgba(148, 163, 184, 0.1);
  }
  .event-card-body {
    padding: 1.2rem;
  }
  .event-card h3 {
    font-size: 1.1rem;
    color: #f8fafc;
    margin-bottom: 0.4rem;
  }
  .event-card p {
    color: #94a3b8;
    font-size: 0.9rem;
  }
  .rankings-section {
    padding: 4rem 1.5rem;
  }
  .rankings-container {
    max-width: 800px;
    margin: 0 auto;
  }
  .ranking-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 1.2rem;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(148, 163, 184, 0.12);
    border-radius: 12px;
    margin-bottom: 0.7rem;
    font-size: 1rem;
    transition: background 0.3s, border-color 0.3s;
  }
  .ranking-item:hover {
    background: rgba(30, 41, 59, 0.8);
    border-color: rgba(148, 163, 184, 0.3);
  }
  .ranking-rank {
    font-weight: 800;
    color: #38bdf8;
    margin-right: 1rem;
    font-size: 1.1rem;
  }
  .ranking-name {
    flex: 1;
    color: #e2e8f0;
  }
  .ranking-score {
    color: #94a3b8;
    font-weight: 600;
  }
  .highlights-section {
    padding: 4rem 1.5rem;
    background: linear-gradient(180deg, transparent, rgba(15, 23, 42, 0.7));
  }
  .highlights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
  }
  .highlight-item {
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid rgba(148, 163, 184, 0.15);
    background: rgba(15, 23, 42, 0.8);
    position: relative;
    transition: transform 0.3s, box-shadow 0.3s;
  }
  .highlight-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  }
  .highlight-item img {
    width: 100%;
    height: 130px;
    object-fit: cover;
    display: block;
  }
  .highlight-info {
    padding: 1rem;
  }
  .highlight-info h4 {
    font-size: 1rem;
    color: #f8fafc;
    margin-bottom: 0.3rem;
  }
  .highlight-info p {
    font-size: 0.85rem;
    color: #94a3b8;
  }
  .testimonials-section {
    padding: 4rem 1.5rem;
  }
  .testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.8rem;
    max-width: 1200px;
    margin: 0 auto;
  }
  .testimonial-card {
    background: linear-gradient(145deg, rgba(30, 41, 59, 0.85), rgba(15, 23, 42, 0.9));
    border: 1px solid rgba(148, 163, 184, 0.15);
    border-radius: 16px;
    padding: 1.8rem;
    position: relative;
  }
  .testimonial-card::after {
    content: "\201D";
    position: absolute;
    top: 0.5rem;
    right: 1rem;
    font-size: 3rem;
    color: rgba(148, 163, 184, 0.2);
    font-family: Georgia, serif;
  }
  .testimonial-card p {
    color: #cbd5e1;
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 1rem;
  }
  .testimonial-author {
    color: #94a3b8;
    font-size: 0.9rem;
    font-weight: 600;
    border-top: 1px solid rgba(148, 163, 184, 0.15);
    padding-top: 0.8rem;
  }
  .cta-section {
    padding: 5rem 1.5rem;
    text-align: center;
    background: linear-gradient(135deg, #0f172a, #1e293b, #0f172a);
    position: relative;
    overflow: hidden;
  }
  .cta-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.1), transparent);
    border-radius: 50%;
  }
  .cta-section h2 {
    font-size: 2rem;
    color: #f8fafc;
    margin-bottom: 1rem;
  }
  .cta-section p {
    color: #94a3b8;
    max-width: 600px;
    margin: 0 auto 2rem;
    font-size: 1.05rem;
  }
  .cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
  }
  .news-section {
    padding: 4rem 1.5rem;
  }
  .news-container {
    max-width: 1200px;
    margin: 0 auto;
  }
  .news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
  }
  .news-card {
    background: linear-gradient(145deg, rgba(15, 23, 42, 0.85), rgba(30, 41, 59, 0.65));
    border: 1px solid rgba(148, 163, 184, 0.18);
    border-radius: 16px;
    padding: 1.8rem;
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
  }
  .news-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #38bdf8, #94a3b8, transparent);
    opacity: 0.7;
  }
  .news-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
  }
  .news-date {
    display: inline-block;
    font-size: 0.85rem;
    color: #38bdf8;
    background: rgba(56, 189, 248, 0.1);
    padding: 0.3rem 0.8rem;
    border-radius: 50px;
    font-weight: 600;
    margin-bottom: 0.8rem;
  }
  .news-card h3 {
    font-size: 1.2rem;
    color: #f8fafc;
    margin-bottom: 0.8rem;
    line-height: 1.4;
  }
  .news-card p {
    color: #94a3b8;
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 1rem;
  }
  .news-tag {
    display: inline-block;
    font-size: 0.8rem;
    color: #cbd5e1;
    background: rgba(148, 163, 184, 0.15);
    padding: 0.25rem 0.7rem;
    border-radius: 50px;
    margin-right: 0.5rem;
    text-decoration: none;
    transition: background 0.3s;
    font-family: inherit;
  }
  .news-tag:hover {
    background: rgba(148, 163, 184, 0.3);
    color: #f8fafc;
  }
  .faq-section {
    padding: 4rem 1.5rem;
    background: linear-gradient(180deg, transparent, rgba(15, 23, 42, 0.5));
  }
  .faq-container {
    max-width: 900px;
    margin: 0 auto;
  }
  .faq-item {
    margin-bottom: 1.2rem;
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 14px;
    background: rgba(15, 23, 42, 0.7);
    overflow: hidden;
    transition: border-color 0.3s;
  }
  .faq-item:hover {
    border-color: rgba(56, 189, 248, 0.4);
  }
  .faq-question {
    padding: 1.2rem 1.5rem;
    cursor: pointer;
    font-weight: 700;
    color: #f8fafc;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.05rem;
    background: linear-gradient(90deg, rgba(15, 23, 42, 0.9), transparent);
    font-family: inherit;
  }
  .faq-question::after {
    content: "\25BC";
    font-size: 0.8rem;
    color: #94a3b8;
    transition: transform 0.3s;
  }
  .faq-answer {
    padding: 0 1.5rem 1.2rem;
    color: #94a3b8;
    line-height: 1.8;
    font-size: 0.95rem;
    border-top: 1px solid rgba(148, 163, 184, 0.1);
  }
  .site-footer {
    background: rgba(8, 12, 24, 0.9);
    border-top: 1px solid rgba(148, 163, 184, 0.15);
    padding: 3rem 1.5rem 2rem;
    text-align: center;
  }
  .footer-info {
    margin-bottom: 1.5rem;
  }
  .footer-info p {
    color: #94a3b8;
    font-size: 0.9rem;
    margin-bottom: 0.4rem;
  }
  .footer-links {
    margin: 1.2rem 0;
    font-size: 0.9rem;
  }
  .footer-links a {
    color: #94a3b8;
    text-decoration: none;
    margin: 0 0.5rem;
    transition: color 0.3s;
    font-family: inherit;
  }
  .footer-links a:hover {
    color: #f8fafc;
  }
  .copyright {
    color: #64748b;
    font-size: 0.85rem;
    margin-top: 1.5rem;
    border-top: 1px solid rgba(148, 163, 184, 0.1);
    padding-top: 1.5rem;
  }
  .divider {
    border: none;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(148, 163, 184, 0.3), transparent);
    max-width: 1200px;
    margin: 0 auto;
  }
  @media (max-width: 768px) {
    .nav-links {
      gap: 1rem;
      padding: 0.8rem 1rem;
    }
    .nav-links a {
      font-size: 0.85rem;
      padding: 0.3rem 0.4rem;
    }
    #geo-intro h1 {
      font-size: 1.7rem;
    }
    .hero-grid {
      flex-direction: column;
    }
    .hero-text {
      text-align: center;
    }
    .stats-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }