* {
    box-sizing: border-box;
    font-family: "Segoe UI", "Helvetica Neue", Arial, "Microsoft YaHei", "微软雅黑", "PingFang SC", sans-serif;
  }
  html {
    scroll-behavior: smooth;
  }
  body {
    margin: 0;
    padding: 0;
    background-color: #06121f;
    background-image:
      radial-gradient(circle at 15% 10%, rgba(20, 184, 166, 0.20), transparent 45%),
      radial-gradient(circle at 85% 0%, rgba(56, 189, 248, 0.14), transparent 40%),
      radial-gradient(circle at 50% 100%, rgba(15, 118, 110, 0.22), transparent 55%),
      linear-gradient(160deg, #0f172a 0%, #08182a 45%, #06121f 100%);
    color: #dbeafe;
    line-height: 1.78;
    font-size: 16px;
    overflow-x: hidden;
  }
  body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background-image:
      repeating-linear-gradient(115deg, rgba(45, 212, 191, 0.05) 0px, rgba(45, 212, 191, 0.05) 1px, transparent 1px, transparent 26px),
      repeating-linear-gradient(65deg, rgba(56, 189, 248, 0.04) 0px, rgba(56, 189, 248, 0.04) 1px, transparent 1px, transparent 34px);
    animation: ripple 18s linear infinite;
  }
  @keyframes ripple {
    0% { transform: translate3d(0, 0, 0); opacity: 0.75; }
    50% { transform: translate3d(-18px, -12px, 0); opacity: 1; }
    100% { transform: translate3d(0, 0, 0); opacity: 0.75; }
  }
  a {
    color: #5eead4;
    text-decoration: none;
    transition: color 0.25s ease;
  }
  a:hover {
    color: #99f6e4;
  }
  img {
    max-width: 100%;
    display: block;
    border-radius: 16px;
  }
  .site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    background: rgba(6, 18, 31, 0.78);
    border-bottom: 1px solid rgba(45, 212, 191, 0.18);
  }
  .header-inner {
    max-width: 1180px;
    margin: 0 auto;
    padding: 14px 22px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
  }
  .logo {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 2px;
    color: #f0fdfa;
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .logo span.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: radial-gradient(circle, #5eead4, #14b8a6);
    box-shadow: 0 0 14px rgba(94, 234, 212, 0.9);
    display: inline-block;
  }
  .nav-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
  }
  .nav-links a {
    padding: 8px 15px;
    border-radius: 999px;
    font-size: 15px;
    color: #cbd5e1;
    border: 1px solid rgba(45, 212, 191, 0.14);
    background: rgba(20, 184, 166, 0.06);
    transition: all 0.25s ease;
  }
  .nav-links a:hover {
    color: #042f2e;
    background: linear-gradient(120deg, #5eead4, #2dd4bf);
    border-color: transparent;
    box-shadow: 0 6px 22px rgba(20, 184, 166, 0.35);
  }
  main {
    position: relative;
    z-index: 1;
  }
  .wrap {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 22px;
  }
  section {
    padding: 58px 0;
  }
  h1, h2, h3, h4 {
    font-family: "Segoe UI", "Helvetica Neue", Arial, "Microsoft YaHei", "微软雅黑", "PingFang SC", sans-serif;
    line-height: 1.35;
    margin-top: 0;
  }
  h1 {
    font-size: clamp(26px, 4.2vw, 44px);
    font-weight: 800;
    letter-spacing: 1px;
    color: #f0fdfa;
    margin-bottom: 18px;
    text-shadow: 0 8px 32px rgba(20, 184, 166, 0.35);
  }
  h2 {
    font-size: clamp(22px, 2.8vw, 30px);
    color: #ccfbf1;
    margin-bottom: 14px;
    position: relative;
    padding-left: 16px;
  }
  h2::before {
    content: "";
    position: absolute;
    left: 0;
    top: 6px;
    bottom: 6px;
    width: 4px;
    border-radius: 4px;
    background: linear-gradient(180deg, #5eead4, #0d9488);
    box-shadow: 0 0 16px rgba(45, 212, 191, 0.7);
  }
  .section-sub {
    color: #94a3b8;
    margin-bottom: 30px;
    max-width: 760px;
  }
  .hero {
    position: relative;
    padding: 70px 0 52px;
  }
  .hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 42px;
    align-items: center;
  }
  .hero-visual {
    position: relative;
  }
  .hero-visual img {
    border: 1px solid rgba(94, 234, 212, 0.28);
    box-shadow: 0 26px 60px rgba(4, 47, 46, 0.7), 0 0 0 1px rgba(94, 234, 212, 0.12) inset;
    position: relative;
    z-index: 2;
  }
  .hero-visual::after {
    content: "";
    position: absolute;
    inset: 22px -18px -18px 22px;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.35), rgba(56, 189, 248, 0.12));
    filter: blur(22px);
    z-index: 1;
  }
  .tagline {
    display: inline-block;
    font-size: 13px;
    letter-spacing: 3px;
    color: #5eead4;
    border: 1px solid rgba(94, 234, 212, 0.4);
    border-radius: 999px;
    padding: 5px 16px;
    margin-bottom: 20px;
    background: rgba(20, 184, 166, 0.08);
  }
  .hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 26px;
  }
  .btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
  }
  .btn-primary {
    color: #042f2e;
    background: linear-gradient(120deg, #5eead4, #2dd4bf 60%, #14b8a6);
    box-shadow: 0 12px 30px rgba(20, 184, 166, 0.42);
  }
  .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 18px 40px rgba(20, 184, 166, 0.55);
    color: #042f2e;
  }
  .btn-ghost {
    color: #a5f3fc;
    border: 1px solid rgba(94, 234, 212, 0.45);
    background: rgba(8, 47, 73, 0.4);
  }
  .btn-ghost:hover {
    transform: translateY(-3px);
    color: #ecfeff;
    background: rgba(20, 184, 166, 0.2);
  }
  .panel {
    background: linear-gradient(150deg, rgba(255, 255, 255, 0.07), rgba(20, 184, 166, 0.08));
    border: 1px solid rgba(94, 234, 212, 0.18);
    border-radius: 20px;
    padding: 28px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  }
  .panel::before {
    content: "";
    position: absolute;
    top: -60%;
    left: -20%;
    width: 140%;
    height: 120%;
    background: radial-gradient(circle at 30% 20%, rgba(94, 234, 212, 0.16), transparent 60%);
    opacity: 0.7;
    pointer-events: none;
  }
  .panel:hover {
    transform: translateY(-6px);
    border-color: rgba(94, 234, 212, 0.45);
    box-shadow: 0 20px 46px rgba(4, 47, 46, 0.62);
  }
  .geo-text {
    font-size: 17px;
    color: #cbd5e1;
    max-width: 900px;
  }
  .geo-text strong {
    color: #5eead4;
  }
  .stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
  }
  .stat-item {
    text-align: center;
    padding: 30px 18px;
  }
  .stat-num {
    font-size: clamp(28px, 3.4vw, 40px);
    font-weight: 800;
    color: #5eead4;
    letter-spacing: 1px;
    text-shadow: 0 6px 24px rgba(20, 184, 166, 0.5);
  }
  .stat-label {
    color: #94a3b8;
    font-size: 15px;
    margin-top: 6px;
  }
  .grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 22px;
  }
  .card-title {
    font-size: 19px;
    color: #ccfbf1;
    margin: 0 0 10px;
    font-weight: 700;
  }
  .card-text {
    color: #a8b6c9;
    font-size: 15px;
    margin: 0;
  }
  .icon-badge {
    width: 46px;
    height: 46px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 16px;
    background: linear-gradient(140deg, rgba(94, 234, 212, 0.28), rgba(14, 116, 144, 0.32));
    border: 1px solid rgba(94, 234, 212, 0.32);
    box-shadow: 0 8px 22px rgba(8, 47, 73, 0.6);
  }
  .story-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 40px;
    align-items: center;
  }
  .story-grid img {
    border: 1px solid rgba(94, 234, 212, 0.25);
    box-shadow: 0 22px 50px rgba(4, 47, 46, 0.65);
  }
  .timeline-list {
    position: relative;
    margin: 0;
    padding: 0 0 0 26px;
    list-style: none;
    border-left: 1px dashed rgba(94, 234, 212, 0.35);
  }
  .timeline-list li {
    position: relative;
    padding: 0 0 30px 20px;
  }
  .timeline-list li:last-child {
    padding-bottom: 0;
  }
  .timeline-list li::before {
    content: "";
    position: absolute;
    left: -33px;
    top: 8px;
    width: 13px;
    height: 13px;
    border-radius: 50%;
    background: radial-gradient(circle, #5eead4, #0d9488);
    box-shadow: 0 0 14px rgba(94, 234, 212, 0.9);
  }
  .timeline-phase {
    display: inline-block;
    font-size: 13px;
    letter-spacing: 2px;
    color: #5eead4;
    border-bottom: 1px solid rgba(94, 234, 212, 0.4);
    margin-bottom: 8px;
  }
  .event-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 22px;
  }
  .event-card img {
    margin-bottom: 18px;
    border: 1px solid rgba(94, 234, 212, 0.22);
    height: 168px;
    object-fit: cover;
    width: 100%;
  }
  .score-line {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    font-size: 17px;
    font-weight: 700;
    color: #f0fdfa;
    margin-bottom: 8px;
  }
  .score-line span.vs {
    font-size: 13px;
    color: #5eead4;
    letter-spacing: 2px;
    font-weight: 500;
  }
  .score-num {
    font-size: 22px;
    color: #5eead4;
    font-weight: 800;
  }
  .news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
  }
  .news-card {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .news-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: #7dd3c0;
  }
  .news-meta .tag {
    padding: 3px 12px;
    border-radius: 999px;
    background: rgba(20, 184, 166, 0.16);
    border: 1px solid rgba(94, 234, 212, 0.3);
    color: #5eead4;
    letter-spacing: 1px;
  }
  .news-title {
    font-size: 18px;
    font-weight: 700;
    color: #e2f6f3;
    margin: 0;
  }
  .news-text {
    color: #9fb0c4;
    font-size: 15px;
    margin: 0;
  }
  .quote-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 22px;
  }
  .quote-stars {
    color: #5eead4;
    letter-spacing: 3px;
    font-size: 15px;
    margin-bottom: 10px;
  }
  .quote-user {
    margin-top: 16px;
    font-size: 14px;
    color: #7dd3c0;
    font-weight: 600;
  }
  .partner-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 16px;
  }
  .partner-item {
    text-align: center;
    padding: 22px 12px;
    border-radius: 16px;
    font-size: 15px;
    letter-spacing: 1px;
    color: #bbf7ef;
    background: linear-gradient(150deg, rgba(255, 255, 255, 0.05), rgba(20, 184, 166, 0.07));
    border: 1px solid rgba(94, 234, 212, 0.16);
    transition: all 0.28s ease;
  }
  .partner-item:hover {
    color: #042f2e;
    background: linear-gradient(130deg, #5eead4, #2dd4bf);
    transform: translateY(-4px);
  }
  .faq-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  .faq-item {
    border-radius: 18px;
    border: 1px solid rgba(94, 234, 212, 0.18);
    background: linear-gradient(150deg, rgba(255, 255, 255, 0.055), rgba(20, 184, 166, 0.06));
    padding: 22px 26px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
  }
  .faq-item:hover {
    border-color: rgba(94, 234, 212, 0.42);
    box-shadow: 0 16px 36px rgba(4, 47, 46, 0.55);
  }
  .faq-q {
    font-size: 17px;
    font-weight: 700;
    color: #ccfbf1;
    margin: 0 0 10px;
    display: flex;
    gap: 10px;
    align-items: flex-start;
  }
  .faq-q .mark {
    color: #5eead4;
    font-weight: 800;
    flex: none;
  }
  .faq-a {
    margin: 0;
    color: #a8b6c9;
    font-size: 15px;
    padding-left: 26px;
  }
  .cta-box {
    text-align: center;
    padding: 52px 30px;
    border-radius: 24px;
    background:
      radial-gradient(circle at 50% 0%, rgba(94, 234, 212, 0.22), transparent 65%),
      linear-gradient(150deg, rgba(15, 23, 42, 0.9), rgba(13, 148, 136, 0.24));
    border: 1px solid rgba(94, 234, 212, 0.28);
    box-shadow: 0 24px 60px rgba(4, 47, 46, 0.6);
  }
  .cta-box h2 {
    padding-left: 0;
    justify-content: center;
    display: block;
  }
  .cta-box h2::before {
    display: none;
  }
  .download-grid {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 38px;
    align-items: center;
  }
  .download-grid img {
    border: 1px solid rgba(94, 234, 212, 0.28);
    box-shadow: 0 22px 52px rgba(4, 47, 46, 0.68);
  }
  .site-footer {
    position: relative;
    z-index: 1;
    margin-top: 40px;
    padding: 44px 0 30px;
    border-top: 1px solid rgba(94, 234, 212, 0.18);
    background: linear-gradient(180deg, rgba(6, 18, 31, 0.4), rgba(4, 14, 24, 0.95));
  }
  .footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 28px;
    margin-bottom: 26px;
  }
  .footer-title {
    color: #ccfbf1;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 12px;
  }
  .footer-line {
    color: #93a3b8;
    font-size: 14px;
    margin: 6px 0;
  }
  .footer-bottom {
    border-top: 1px solid rgba(94, 234, 212, 0.14);
    padding-top: 20px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 12px;
    color: #7d8ea3;
    font-size: 14px;
  }
  .footer-bottom a {
    color: #5eead4;
  }
  @media (max-width: 900px) {
    .hero-grid, .story-grid, .download-grid {
      grid-template-columns: 1fr;
    }
    .hero-visual {
      order: -1;
    }
    section {
      padding: 44px 0;
    }
    .panel {
      padding: 22px;
    }
  }
  @media (max-width: 560px) {
    .header-inner {
      padding: 12px 16px;
    }
    .nav-links a {
      padding: 7px 12px;
      font-size: 14px;
    }
    .wrap {
      padding: 0 16px;
    }
    .faq-a {
      padding-left: 0;
    }
  }