*{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(180deg,#041f31 0%,#082f49 28%,#0c4a6e 62%,#062a40 100%);
    color:#dbeafe;
    line-height:1.8;
    overflow-x:hidden;
    position:relative;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    background:
      radial-gradient(circle at 18% 12%,rgba(56,189,248,.16),transparent 42%),
      radial-gradient(circle at 82% 68%,rgba(14,165,233,.12),transparent 46%),
      repeating-linear-gradient(115deg,rgba(148,197,230,.045) 0px,rgba(148,197,230,.045) 2px,transparent 2px,transparent 26px);
    pointer-events:none;
    z-index:0;
  }
  a{color:#7dd3fc;text-decoration:none;transition:color .25s ease,opacity .25s ease;}
  a:hover{color:#e0f2fe;}
  img{max-width:100%;display:block;border-radius:16px;}
  header,main,footer{position:relative;z-index:1;}
  .wrap{width:min(1180px,92vw);margin:0 auto;}
  /* ---------- NAV ---------- */
  .site-header{
    position:sticky;top:0;z-index:50;
    background:rgba(6,33,50,.82);
    backdrop-filter:blur(14px);
    border-bottom:1px solid rgba(125,211,252,.18);
    box-shadow:0 10px 34px rgba(2,16,26,.5);
  }
  .site-header .wrap{
    display:flex;align-items:center;justify-content:space-between;
    gap:18px;padding:14px 0;flex-wrap:wrap;
  }
  .brand{display:flex;align-items:center;gap:10px;font-size:1.14rem;font-weight:700;letter-spacing:.06em;color:#e0f2fe;}
  .brand .dot{
    width:12px;height:12px;border-radius:50%;
    background:radial-gradient(circle at 30% 30%,#bae6fd,#0ea5e9 60%,#0369a1);
    box-shadow:0 0 14px rgba(56,189,248,.9);
  }
  .nav-links{display:flex;flex-wrap:wrap;gap:6px 20px;align-items:center;}
  .nav-links a{
    font-size:.94rem;color:#bae6fd;padding:6px 2px;position:relative;
  }
  .nav-links a::after{
    content:"";position:absolute;left:0;bottom:0;width:0;height:2px;
    background:linear-gradient(90deg,#38bdf8,#e0f2fe);
    transition:width .3s ease;
  }
  .nav-links a:hover::after{width:100%;}
  /* ---------- HERO ---------- */
  #hero{padding:76px 0 62px;position:relative;overflow:hidden;}
  #hero::after{
    content:"";position:absolute;left:50%;bottom:-120px;transform:translateX(-50%);
    width:150%;height:220px;border-radius:50%;
    background:radial-gradient(ellipse at center,rgba(56,189,248,.22),transparent 70%);
    pointer-events:none;
  }
  .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;}
  h1{
    font-size:clamp(1.7rem,3.6vw,2.75rem);
    line-height:1.35;font-weight:800;letter-spacing:.02em;
    background:linear-gradient(120deg,#ffffff,#bae6fd 45%,#7dd3fc 78%,#e0f2fe);
    -webkit-background-clip:text;background-clip:text;color:transparent;
    margin-bottom:20px;
  }
  .hero-tag{
    display:inline-flex;align-items:center;gap:8px;
    font-size:.82rem;letter-spacing:.16em;color:#7dd3fc;
    border:1px solid rgba(125,211,252,.35);border-radius:999px;
    padding:6px 16px;margin-bottom:20px;background:rgba(14,116,144,.22);
  }
  .geo-text{
    font-size:1rem;color:#c7e3f5;margin-bottom:26px;
    background:linear-gradient(180deg,rgba(12,74,110,.55),rgba(8,47,73,.35));
    border-left:3px solid #38bdf8;
    border-radius:0 14px 14px 0;
    padding:18px 20px;
    box-shadow:inset 0 0 30px rgba(56,189,248,.08);
  }
  .btn-row{display:flex;gap:14px;flex-wrap:wrap;}
  .btn{
    display:inline-block;padding:12px 30px;border-radius:999px;font-weight:700;
    font-size:.95rem;letter-spacing:.05em;transition:transform .25s ease,box-shadow .25s ease;
  }
  .btn-main{
    background:linear-gradient(120deg,#0ea5e9,#38bdf8 55%,#7dd3fc);
    color:#04222f;box-shadow:0 12px 30px rgba(14,165,233,.36);
  }
  .btn-ghost{border:1px solid rgba(148,197,230,.55);color:#cfe9fa;background:rgba(8,47,73,.4);}
  .btn:hover{transform:translateY(-3px);box-shadow:0 16px 36px rgba(56,189,248,.4);}
  .hero-img{
    position:relative;border-radius:22px;overflow:hidden;
    border:1px solid rgba(125,211,252,.28);
    box-shadow:0 26px 60px rgba(2,16,26,.65),inset 0 0 60px rgba(56,189,248,.12);
  }
  .hero-img img{width:100%;height:100%;object-fit:cover;border-radius:0;}
  /* ---------- SECTION SHELL ---------- */
  section{padding:64px 0;position:relative;}
  .sec-head{margin-bottom:38px;max-width:760px;}
  .sec-head h2{
    font-size:clamp(1.3rem,2.4vw,1.85rem);color:#e8f6ff;font-weight:750;letter-spacing:.02em;
    margin-bottom:10px;
  }
  .sec-head h2 span{color:#38bdf8;}
  .sec-head p{color:#a9cde3;font-size:.95rem;}
  .card{
    background:linear-gradient(160deg,rgba(13,64,94,.72),rgba(7,40,60,.86));
    border:1px solid rgba(125,211,252,.16);
    border-radius:18px;padding:24px;
    box-shadow:0 18px 40px rgba(2,16,26,.42),inset 0 1px 0 rgba(224,242,254,.07);
    position:relative;overflow:hidden;
    transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
  }
  .card::after{
    content:"";position:absolute;inset:auto -30% -60% -30%;height:120px;
    background:radial-gradient(ellipse at center,rgba(56,189,248,.22),transparent 70%);
    pointer-events:none;
  }
  .card:hover{transform:translateY(-6px);border-color:rgba(125,211,252,.42);box-shadow:0 26px 54px rgba(3,105,161,.34);}
  /* ---------- STATS ---------- */
  .stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;}
  .stat-card{text-align:center;}
  .stat-num{
    font-size:2rem;font-weight:800;letter-spacing:.02em;
    background:linear-gradient(120deg,#e0f2fe,#38bdf8);
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .stat-label{color:#9dc6de;font-size:.9rem;margin-top:4px;}
  /* ---------- ADVANTAGES ---------- */
  .adv-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:22px;}
  .adv-grid .icon{
    font-size:1.5rem;width:52px;height:52px;display:grid;place-items:center;border-radius:14px;
    background:linear-gradient(140deg,rgba(56,189,248,.24),rgba(3,105,161,.28));
    border:1px solid rgba(125,211,252,.3);margin-bottom:14px;
  }
  .adv-grid h3{font-size:1.05rem;color:#e0f2fe;margin-bottom:8px;}
  .adv-grid p{font-size:.92rem;color:#a9cde3;}
  /* ---------- STORY ---------- */
  .story-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:center;}
  .story-img{border-radius:22px;overflow:hidden;border:1px solid rgba(125,211,252,.22);box-shadow:0 22px 50px rgba(2,16,26,.6);}
  .story-img img{border-radius:0;width:100%;}
  .story-text p{color:#b6d7ea;font-size:.96rem;margin-bottom:14px;}
  /* ---------- EVENTS ---------- */
  .event-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px;}
  .event-card h3{font-size:1.02rem;color:#e0f2fe;margin-bottom:10px;}
  .event-meta{font-size:.85rem;color:#7dd3fc;letter-spacing:.05em;margin-bottom:12px;}
  .event-card p{font-size:.92rem;color:#a9cde3;}
  .score-line{
    display:flex;justify-content:space-between;align-items:center;
    background:rgba(3,105,161,.24);border:1px solid rgba(125,211,252,.2);
    border-radius:12px;padding:10px 14px;margin-top:14px;font-size:.9rem;color:#cfe9fa;
  }
  .score-line b{color:#7dd3fc;font-weight:700;}
  /* ---------- NEWS ---------- */
  .news-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px;}
  .news-card h3{font-size:1.02rem;line-height:1.5;color:#e8f6ff;margin-bottom:8px;}
  .news-date{
    display:inline-block;font-size:.78rem;letter-spacing:.08em;color:#7dd3fc;
    border:1px solid rgba(125,211,252,.32);border-radius:999px;padding:2px 12px;margin-bottom:12px;
    background:rgba(14,116,144,.2);
  }
  .news-card p{font-size:.9rem;color:#a9cde3;}
  .news-card img{height:150px;width:100%;object-fit:cover;margin-bottom:16px;border-radius:12px;}
  /* ---------- GAMES ---------- */
  .game-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:22px;}
  .game-card img{height:140px;width:100%;object-fit:cover;margin-bottom:14px;border-radius:12px;}
  .game-card h3{font-size:1rem;color:#e0f2fe;margin-bottom:6px;}
  .game-card p{font-size:.88rem;color:#a9cde3;}
  .tagline{display:inline-block;font-size:.75rem;color:#7dd3fc;border:1px dashed rgba(125,211,252,.4);border-radius:999px;padding:2px 10px;margin-top:12px;}
  /* ---------- FAQ ---------- */
  .faq-list{display:grid;gap:14px;}
  details{
    background:linear-gradient(160deg,rgba(13,64,94,.7),rgba(7,40,60,.86));
    border:1px solid rgba(125,211,252,.16);border-radius:14px;
    padding:16px 20px;transition:border-color .3s ease,background .3s ease;
  }
  details[open]{border-color:rgba(125,211,252,.45);background:linear-gradient(160deg,rgba(16,76,110,.8),rgba(8,47,73,.9));}
  summary{
    cursor:pointer;font-weight:650;color:#e0f2fe;font-size:.98rem;list-style:none;
    display:flex;justify-content:space-between;gap:12px;align-items:center;
  }
  summary::-webkit-details-marker{display:none;}
  summary::after{content:"＋";color:#38bdf8;font-weight:700;font-size:1.05rem;}
  details[open] summary::after{content:"－";}
  details p{margin-top:12px;font-size:.92rem;color:#a9cde3;}
  /* ---------- CTA ---------- */
  #cta .cta-box{
    text-align:center;border-radius:24px;padding:52px 28px;
    background:linear-gradient(140deg,rgba(14,116,144,.55),rgba(8,47,73,.9));
    border:1px solid rgba(125,211,252,.3);
    box-shadow:0 26px 60px rgba(2,16,26,.55),inset 0 0 80px rgba(56,189,248,.1);
  }
  #cta h2{font-size:clamp(1.25rem,2.4vw,1.7rem);color:#e8f6ff;margin-bottom:14px;}
  #cta p{color:#b6d7ea;font-size:.95rem;max-width:720px;margin:0 auto 26px;}
  /* ---------- FOOTER ---------- */
  footer{
    border-top:1px solid rgba(125,211,252,.18);
    background:rgba(4,26,40,.9);
    padding:44px 0 26px;margin-top:20px;
  }
  .foot-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:26px;margin-bottom:26px;}
  .foot-grid h4{color:#bae6fd;font-size:.96rem;margin-bottom:10px;letter-spacing:.05em;}
  .foot-grid p,.foot-grid li{font-size:.88rem;color:#9dc6de;line-height:2;}
  .foot-grid ul{list-style:none;}
  .foot-bottom{
    border-top:1px solid rgba(125,211,252,.14);padding-top:18px;
    display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
    font-size:.83rem;color:#7fa9c2;
  }
  @media(max-width:860px){
    .hero-grid,.story-grid{grid-template-columns:1fr;}
    #hero{padding:52px 0 44px;}
    section{padding:48px 0;}
  }