:root {
    --primary: #94a3b8;
    --deep-blue: #0f172a;
    --slate: #1e293b;
    --accent: #38bdf8;
    --silver: #e2e8f0;
    --text: #cbd5e1;
  }
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  body {
    font-family: "Segoe UI", "Helvetica Neue", Arial, "Microsoft YaHei", "微软雅黑", "PingFang SC", sans-serif;
    background: linear-gradient(160deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
  }
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
  }
  .navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(148, 163, 184, 0.2);
  }
  .nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    height: 70px;
  }
  .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--silver);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.25rem;
  }
  .brand-icon {
    width: 36px;
    height: 36px;
    object-fit: contain;
  }
  .nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .nav-links a {
    color: var(--text);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.95rem;
    transition: all 0.3s ease;
  }
  .nav-links a:hover {
    background: rgba(148, 163, 184, 0.15);
    color: var(--silver);
  }
  .nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--silver);
    font-size: 1.5rem;
    cursor: pointer;
  }
  .hero {
    padding: 150px 0 80px;
    background: radial-gradient(ellipse at 80% 20%, rgba(148, 163, 184, 0.3), transparent 60%);
    text-align: center;
  }
  .hero h1 {
    font-size: 2.5rem;
    color: var(--silver);
    margin-bottom: 20px;
    line-height: 1.3;
  }
  .hero-sub {
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 30px;
  }
  .hero-btn {
    display: inline-block;
    padding: 12px 32px;
    background: linear-gradient(135deg, #38bdf8, #0ea5e9);
    color: #0f172a;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
  }
  .hero-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(56, 189, 248, 0.3);
  }
  .section {
    padding: 80px 0;
  }
  .section h2 {
    font-size: 2rem;
    color: var(--silver);
    text-align: center;
    margin-bottom: 16px;
  }
  .geo-intro {
    background: rgba(15, 23, 42, 0.7);
    border-top: 1px solid rgba(148, 163, 184, 0.15);
    border-bottom: 1px solid rgba(148, 163, 184, 0.15);
  }
  .geo-content {
    display: flex;
    align-items: center;
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
  }
  .geo-img {
    width: 200px;
    height: auto;
    flex-shrink: 0;
  }
  .geo-text p {
    font-size: 1.05rem;
    color: var(--text);
    line-height: 1.8;
  }
  .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }
  .stat-card {
    background: linear-gradient(145deg, rgba(148, 163, 184, 0.1), rgba(15, 23, 42, 0.8));
    border: 1px solid rgba(148, 163, 184, 0.25);
    border-radius: 16px;
    padding: 32px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  .stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.02) 0px, rgba(255, 255, 255, 0.02) 1px, transparent 1px, transparent 4px);
    pointer-events: none;
  }
  .stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
  }
  .stat-number {
    font-size: 2.6rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 8px;
  }
  .stat-label {
    color: var(--primary);
    font-size: 0.95rem;
  }
  .advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }
  .advantage-card {
    background: linear-gradient(145deg, rgba(148, 163, 184, 0.12), rgba(15, 23, 42, 0.85));
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 16px;
    padding: 32px 24px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  .advantage-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
  }
  .advantage-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
    width: 64px;
    height: 64px;
    object-fit: contain;
  }
  .advantage-card h3 {
    color: var(--silver);
    margin-bottom: 12px;
    font-size: 1.1rem;
  }
  .advantage-card p {
    color: var(--text);
    font-size: 0.92rem;
    line-height: 1.6;
  }
  .brand-story-content {
    display: flex;
    align-items: center;
    gap: 48px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
  }
  .story-img {
    width: 400px;
    height: auto;
    border-radius: 16px;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
  }
  .story-text h2 {
    text-align: left;
    margin-bottom: 20px;
  }
  .story-text p {
    color: var(--text);
    line-height: 1.8;
    margin-bottom: 16px;
  }
  .coverage-section {
    background: rgba(148, 163, 184, 0.05);
  }
  .coverage-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }
  .coverage-item {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 16px;
    padding: 28px 20px;
    text-align: center;
    transition: transform 0.3s ease;
  }
  .coverage-item:hover {
    transform: translateY(-4px);
  }
  .coverage-item img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    margin-bottom: 16px;
  }
  .coverage-item h3 {
    color: var(--silver);
    margin-bottom: 10px;
    font-size: 1.05rem;
  }
  .coverage-item p {
    color: var(--text);
    font-size: 0.92rem;
    line-height: 1.6;
  }
  .partners-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }
  .partner-item {
    background: rgba(148, 163, 184, 0.08);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 12px;
    padding: 24px 16px;
    text-align: center;
    color: var(--silver);
    font-size: 1rem;
    font-weight: 500;
    transition: background 0.3s ease;
  }
  .partner-item:hover {
    background: rgba(148, 163, 184, 0.15);
  }
  .events-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }
  .event-card {
    background: linear-gradient(145deg, rgba(148, 163, 184, 0.1), rgba(15, 23, 42, 0.9));
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  .event-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
  }
  .event-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
  }
  .event-card-body {
    padding: 24px;
  }
  .event-card-body h3 {
    color: var(--silver);
    margin-bottom: 12px;
  }
  .event-card-body p {
    color: var(--text);
    font-size: 0.95rem;
    line-height: 1.6;
  }
  .news-section {
    background: rgba(15, 23, 42, 0.9);
  }
  .news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .news-item {
    background: linear-gradient(145deg, rgba(148, 163, 184, 0.08), rgba(15, 23, 42, 0.9));
    border: 1px solid rgba(148, 163, 184, 0.18);
    border-radius: 16px;
    padding: 28px 24px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
  }
  .news-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
  }
  .news-date {
    color: var(--accent);
    font-size: 0.9rem;
    margin: 8px 0;
    font-weight: 500;
  }
  .news-item h3 {
    color: var(--silver);
    font-size: 1.05rem;
    margin-bottom: 12px;
    line-height: 1.5;
  }
  .news-excerpt {
    color: var(--text);
    font-size: 0.92rem;
    line-height: 1.65;
    flex-grow: 1;
    margin-bottom: 16px;
  }
  .news-link {
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
  }
  .news-link:hover {
    text-decoration: underline;
  }
  .faq-list {
    max-width: 900px;
    margin: 0 auto;
  }
  .faq-item {
    background: rgba(15, 23, 42, 0.7);
    border: 1px solid rgba(148, 163, 184, 0.15);
    border-radius: 12px;
    padding: 24px 28px;
    margin-bottom: 16px;
    transition: background 0.3s ease;
  }
  .faq-item:hover {
    background: rgba(30, 41, 59, 0.8);
  }
  .faq-item h3 {
    color: var(--silver);
    font-size: 1.05rem;
    margin-bottom: 12px;
  }
  .faq-item p {
    color: var(--text);
    font-size: 0.95rem;
    line-height: 1.7;
  }
  .cta-section {
    text-align: center;
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.1), rgba(15, 23, 42, 0.9));
    padding: 80px 0;
  }
  .cta-section h2 {
    margin-bottom: 20px;
  }
  .cta-section p {
    max-width: 600px;
    margin: 0 auto 32px;
    color: var(--text);
    font-size: 1.05rem;
  }
  .cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
  }
  .btn {
    display: inline-block;
    padding: 12px 32px;
    background: linear-gradient(135deg, #38bdf8, #0ea5e9);
    color: #0f172a;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
  }
  .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(56, 189, 248, 0.3);
  }
  .btn-secondary {
    background: rgba(148, 163, 184, 0.2);
    color: var(--silver);
    border: 1px solid rgba(148, 163, 184, 0.4);
  }
  .btn-secondary:hover {
    background: rgba(148, 163, 184, 0.3);
    box-shadow: 0 8px 24px rgba(148, 163, 184, 0.2);
  }
  .footer {
    background: #0a0f1c;
    border-top: 1px solid rgba(148, 163, 184, 0.15);
    padding: 48px 0 24px;
  }
  .footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
    margin-bottom: 32px;
  }
  .footer-info p {
    color: var(--primary);
    font-size: 0.9rem;
    margin-bottom: 8px;
  }
  .footer-links a {
    color: var(--accent);
    text-decoration: none;
    font-size: 0.9rem;
  }
  .footer-links a:hover {
    text-decoration: underline;
  }
  .footer-bottom {
    border-top: 1px solid rgba(148, 163, 184, 0.1);
    padding-top: 20px;
    text-align: center;
    color: var(--primary);
    font-size: 0.85rem;
  }
  .footer-bottom p {
    margin-bottom: 4px;
  }
  @media (max-width: 768px) {
    .nav-toggle {
      display: block;
    }
    .nav-links {
      display: none;
      position: absolute;
      top: 70px;
      left: 0;
      right: 0;
      background: rgba(15, 23, 42, 0.95);
      flex-direction: column;
      padding: 20px;
      gap: 8px;
      border-bottom: 1px solid rgba(148, 163, 184, 0.2);
    }
    .nav-links.open {
      display: flex;
    }
    .geo-content {
      flex-direction: column;
      text-align: center;
    }
    .brand-story-content {
      flex-direction: column;
    }
    .stats-grid,
    .advantages-grid,
    .coverage-grid,
    .partners-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    .news-grid,
    .events-grid {
      grid-template-columns: 1fr;
    }
    .hero h1 {
      font-size: 2rem;
    }
  }