:root{
    --deep:#0f172a;
    --deep-2:#0b2a33;
    --deep-3:#06121c;
    --teal:#14b8a6;
    --cyan:#22d3ee;
    --ink:#e6f6f5;
    --muted:#9fb8c9;
    --line:rgba(34,211,238,.18);
  }
  *,*::before,*::after{
    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;
    color:var(--ink);
    background:
      radial-gradient(circle at 12% 0%, rgba(20,184,166,.24), transparent 55%),
      radial-gradient(circle at 88% 8%, rgba(34,211,238,.16), transparent 52%),
      linear-gradient(180deg,#0f172a 0%, #0b2a33 46%, #06121c 100%);
    background-attachment:fixed;
    min-height:100vh;
    line-height:1.75;
    overflow-x:hidden;
  }
  body::before{
    content:"";
    position:fixed;
    inset:-10%;
    pointer-events:none;
    z-index:0;
    background:
      repeating-radial-gradient(circle at 20% 80%, rgba(34,211,238,.055) 0 2px, transparent 2px 48px),
      repeating-radial-gradient(circle at 80% 20%, rgba(20,184,166,.05) 0 2px, transparent 2px 62px);
    animation:drift 26s ease-in-out infinite;
  }
  @keyframes drift{
    0%{transform:translate3d(0,0,0) scale(1);}
    50%{transform:translate3d(-14px,-20px,0) scale(1.03);}
    100%{transform:translate3d(0,0,0) scale(1);}
  }
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(8,19,30,.78);
    backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
  }
  .nav-wrap{
    max-width:1180px;
    margin:0 auto;
    padding:14px 20px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    flex-wrap:wrap;
  }
  .brand{
    display:flex;
    align-items:center;
    gap:10px;
    font-weight:700;
    font-size:17px;
    letter-spacing:.6px;
    color:#e9fffb;
    text-decoration:none;
  }
  .brand .dot{
    width:11px;height:11px;border-radius:50%;
    background:linear-gradient(135deg,var(--teal),var(--cyan));
    box-shadow:0 0 16px rgba(34,211,238,.9);
    animation:pulse 2.8s ease-in-out infinite;
  }
  @keyframes pulse{
    0%,100%{transform:scale(1);opacity:1;}
    50%{transform:scale(1.35);opacity:.7;}
  }
  .nav-links{
    display:flex;
    gap:6px;
    flex-wrap:wrap;
  }
  .nav-links a{
    color:#b9d9e0;
    text-decoration:none;
    font-size:14px;
    padding:8px 14px;
    border-radius:999px;
    border:1px solid transparent;
    transition:all .28s ease;
    white-space:nowrap;
  }
  .nav-links a:hover{
    color:#04262b;
    background:linear-gradient(135deg,var(--teal),var(--cyan));
    border-color:rgba(34,211,238,.6);
    box-shadow:0 6px 18px rgba(20,184,166,.35);
  }
  main{position:relative;z-index:1;}
  .wrap{
    max-width:1180px;
    margin:0 auto;
    padding:0 20px;
  }
  section{padding:64px 0;position:relative;z-index:1;}
  .hero{
    padding:96px 0 76px;
    overflow:hidden;
  }
  .hero-grid{
    display:grid;
    grid-template-columns:1.15fr .85fr;
    gap:44px;
    align-items:center;
  }
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    letter-spacing:2px;
    text-transform:uppercase;
    color:#7fe6dc;
    border:1px solid var(--line);
    background:rgba(20,184,166,.1);
    padding:6px 14px;
    border-radius:999px;
    margin-bottom:22px;
  }
  h1{
    font-size:clamp(26px,4vw,44px);
    line-height:1.28;
    margin:0 0 20px;
    letter-spacing:.5px;
    background:linear-gradient(120deg,#ffffff 10%,#7ff0e2 55%,#59d9f2 95%);
    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
    font-weight:800;
  }
  .hero p.lead{
    color:var(--muted);
    font-size:16.5px;
    margin:0 0 26px;
    max-width:640px;
  }
  .hero-actions{display:flex;gap:14px;flex-wrap:wrap;}
  .btn{
    display:inline-block;
    text-decoration:none;
    padding:12px 26px;
    border-radius:999px;
    font-size:15px;
    font-weight:600;
    transition:all .28s ease;
    border:1px solid transparent;
  }
  .btn-primary{
    background:linear-gradient(135deg,var(--teal),var(--cyan));
    color:#04262b;
    box-shadow:0 10px 28px rgba(20,184,166,.35);
  }
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(34,211,238,.45);}
  .btn-ghost{
    color:#a9e7e2;
    border-color:var(--line);
    background:rgba(15,23,42,.5);
  }
  .btn-ghost:hover{background:rgba(20,184,166,.16);color:#e9fffb;transform:translateY(-2px);}
  .hero-visual{
    position:relative;
    border-radius:26px;
    overflow:hidden;
    border:1px solid var(--line);
    box-shadow:0 26px 60px rgba(0,0,0,.5);
    background:linear-gradient(160deg,rgba(20,184,166,.16),rgba(15,23,42,.6));
  }
  .hero-visual img{
    width:100%;
    height:100%;
    display:block;
    object-fit:cover;
    filter:saturate(1.05) contrast(1.02);
    opacity:.92;
  }
  .hero-visual::after{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(180deg,transparent 40%,rgba(6,18,28,.75));
    pointer-events:none;
  }
  h2{
    font-size:clamp(22px,2.6vw,30px);
    margin:0 0 14px;
    color:#eafffb;
    letter-spacing:.4px;
    font-weight:750;
  }
  .sec-sub{
    color:var(--muted);
    font-size:15.5px;
    margin:0 0 34px;
    max-width:820px;
  }
  .geo-box{
    background:linear-gradient(160deg,rgba(20,184,166,.12),rgba(15,23,42,.62));
    border:1px solid var(--line);
    border-radius:22px;
    padding:30px 32px;
    box-shadow:0 18px 44px rgba(0,0,0,.34), inset 0 1px 0 rgba(255,255,255,.05);
    backdrop-filter:blur(10px);
    position:relative;
    overflow:hidden;
  }
  .geo-box::before{
    content:"";
    position:absolute;
    top:-60px;right:-60px;
    width:200px;height:200px;border-radius:50%;
    background:radial-gradient(circle,rgba(34,211,238,.22),transparent 70%);
    pointer-events:none;
  }
  .geo-box p{margin:0;color:#cfe9ea;font-size:16px;}
  .card{
    background:linear-gradient(160deg,rgba(20,184,166,.11),rgba(15,23,42,.58));
    border:1px solid var(--line);
    border-radius:20px;
    padding:24px;
    backdrop-filter:blur(8px);
    box-shadow:0 14px 36px rgba(0,0,0,.34), inset 0 1px 0 rgba(255,255,255,.05);
    transition:transform .3s ease, border-color .3s ease, box-shadow .3s ease;
    position:relative;
    overflow:hidden;
  }
  .card:hover{
    transform:translateY(-5px);
    border-color:rgba(34,211,238,.42);
    box-shadow:0 22px 46px rgba(0,0,0,.46), 0 0 0 1px rgba(34,211,238,.16) inset;
  }
  .card h3{
    margin:0 0 10px;
    font-size:17.5px;
    color:#dffcf7;
    font-weight:700;
  }
  .card p{margin:0;color:var(--muted);font-size:14.8px;}
  .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
  .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
  .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
  .stat{
    text-align:center;
    padding:28px 18px;
    border-radius:20px;
    border:1px solid var(--line);
    background:linear-gradient(170deg,rgba(20,184,166,.14),rgba(9,20,32,.6));
    box-shadow:0 14px 34px rgba(0,0,0,.32);
    transition:transform .3s ease;
  }
  .stat:hover{transform:translateY(-4px);}
  .stat .num{
    font-size:clamp(24px,3vw,34px);
    font-weight:800;
    background:linear-gradient(120deg,#8ef4e8,#4fd6f5);
    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
    display:block;
    line-height:1.2;
  }
  .stat .label{color:var(--muted);font-size:14px;margin-top:6px;display:block;}
  .icon-badge{
    width:44px;height:44px;border-radius:14px;
    display:flex;align-items:center;justify-content:center;
    font-size:21px;
    margin-bottom:14px;
    background:linear-gradient(135deg,rgba(20,184,166,.3),rgba(34,211,238,.16));
    border:1px solid rgba(34,211,238,.3);
    box-shadow:0 0 18px rgba(20,184,166,.22) inset;
  }
  .news-item{
    display:grid;
    grid-template-columns:1fr;
    gap:10px;
    padding:24px;
    border-radius:20px;
    border:1px solid var(--line);
    background:linear-gradient(160deg,rgba(20,184,166,.09),rgba(9,20,32,.62));
    box-shadow:0 14px 34px rgba(0,0,0,.32);
    transition:transform .3s ease,border-color .3s ease;
  }
  .news-item:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.4);}
  .news-item h3{margin:0;font-size:17.5px;color:#e3fdf8;line-height:1.5;font-weight:700;}
  .news-date{
    display:inline-block;
    font-size:12.5px;
    color:#7ff0e2;
    background:rgba(20,184,166,.14);
    border:1px solid rgba(34,211,238,.28);
    border-radius:999px;
    padding:3px 12px;
    letter-spacing:.5px;
    width:fit-content;
  }
  .news-item p{margin:0;color:var(--muted);font-size:14.6px;}
  .tag{
    display:inline-block;
    font-size:12px;
    color:#062b31;
    background:linear-gradient(135deg,var(--teal),var(--cyan));
    border-radius:999px;
    padding:3px 12px;
    font-weight:700;
    letter-spacing:.5px;
  }
  .event-row{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:14px;
    padding:18px 22px;
    border-radius:16px;
    border:1px solid var(--line);
    background:linear-gradient(120deg,rgba(20,184,166,.1),rgba(9,20,32,.55));
    margin-bottom:14px;
    transition:transform .3s ease,border-color .3s ease;
    flex-wrap:wrap;
  }
  .event-row:hover{transform:translateX(5px);border-color:rgba(34,211,238,.4);}
  .event-row .vs{color:#8ef4e8;font-weight:700;font-size:15.5px;}
  .event-row .meta{color:var(--muted);font-size:13.5px;}
  .thumb{
    width:100%;
    border-radius:18px;
    display:block;
    border:1px solid var(--line);
    box-shadow:0 18px 40px rgba(0,0,0,.42);
    object-fit:cover;
  }
  .quote{
    position:relative;
    padding:26px 26px 26px 30px;
    border-left:3px solid var(--teal);
    border-radius:0 18px 18px 0;
    background:linear-gradient(120deg,rgba(20,184,166,.13),rgba(9,20,32,.5));
    border-top:1px solid var(--line);
    border-right:1px solid var(--line);
    border-bottom:1px solid var(--line);
  }
  .quote p{margin:0 0 12px;color:#cfe9ea;font-size:15px;}
  .quote .who{color:#7ff0e2;font-size:13.5px;font-weight:600;}
  details.faq-item{
    border:1px solid var(--line);
    border-radius:16px;
    background:linear-gradient(160deg,rgba(20,184,166,.09),rgba(9,20,32,.6));
    margin-bottom:14px;
    overflow:hidden;
    transition:border-color .3s ease, background .3s ease;
  }
  details.faq-item[open]{
    border-color:rgba(34,211,238,.45);
    background:linear-gradient(160deg,rgba(20,184,166,.16),rgba(9,20,32,.66));
  }
  details.faq-item summary{
    cursor:pointer;
    padding:18px 24px;
    font-size:16px;
    font-weight:650;
    color:#e2fdf9;
    list-style:none;
    display:flex;
    align-items:flex-start;
    gap:12px;
    transition:color .25s ease;
  }
  details.faq-item summary::-webkit-details-marker{display:none;}
  details.faq-item summary::before{
    content:"🌊";
    font-size:15px;
    line-height:1.7;
    flex-shrink:0;
  }
  details.faq-item summary:hover{color:#8ef4e8;}
  details.faq-item .answer{
    padding:0 24px 22px 24px;
    color:var(--muted);
    font-size:14.9px;
    line-height:1.85;
  }
  .cta-band{
    border-radius:26px;
    padding:46px 34px;
    text-align:center;
    border:1px solid rgba(34,211,238,.3);
    background:
      radial-gradient(circle at 20% 20%, rgba(34,211,238,.22), transparent 60%),
      radial-gradient(circle at 80% 80%, rgba(20,184,166,.22), transparent 60%),
      linear-gradient(160deg,rgba(15,23,42,.86),rgba(6,18,28,.9));
    box-shadow:0 26px 60px rgba(0,0,0,.5);
  }
  .cta-band h2{margin-bottom:12px;}
  .cta-band p{color:var(--muted);max-width:720px;margin:0 auto 26px;font-size:15.5px;}
  .site-footer{
    position:relative;
    z-index:1;
    margin-top:40px;
    border-top:1px solid var(--line);
    background:linear-gradient(180deg,rgba(6,18,28,.6),rgba(4,12,20,.95));
    padding:48px 0 26px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr;
    gap:32px;
    margin-bottom:32px;
  }
  .footer-grid h4{
    margin:0 0 14px;
    font-size:15px;
    color:#dffcf7;
    letter-spacing:.6px;
  }
  .footer-grid p,.footer-grid li{
    color:var(--muted);
    font-size:14px;
    margin:0 0 8px;
    line-height:1.8;
  }
  .footer-grid ul{list-style:none;padding:0;margin:0;}
  .footer-grid a{color:#9fd9d6;text-decoration:none;transition:color .25s ease;}
  .footer-grid a:hover{color:#8ef4e8;}
  .footer-bottom{
    border-top:1px solid rgba(34,211,238,.12);
    padding-top:20px;
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:14px;
    flex-wrap:wrap;
    color:#7c99a8;
    font-size:13.2px;
  }
  .footer-bottom a{color:#9fd9d6;text-decoration:none;}
  .footer-bottom a:hover{color:#8ef4e8;}
  @media (max-width:960px){
    .hero-grid{grid-template-columns:1fr;gap:34px;}
    .grid-4{grid-template-columns:repeat(2,1fr);}
    .grid-3{grid-template-columns:1fr;}
    .grid-2{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;}
  }
  @media (max-width:560px){
    .grid-4{grid-template-columns:1fr;}
    section{padding:46px 0;}
    .hero{padding:64px 0 52px;}
    .geo-box{padding:22px;}
    .cta-band{padding:34px 20px;}
    .nav-links a{font-size:13px;padding:7px 11px;}
  }