:root{
    --pink:#e5e0df;
    --blue:#cbd5e1;
    --silver:#b9bfc7;
    --ink:#3b4048;
    --ink-soft:#5c636d;
    --line:rgba(140,148,160,.28);
    --card:rgba(255,255,255,.66);
    --card-2:rgba(255,255,255,.5);
    --shadow:0 10px 30px rgba(120,130,145,.14);
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:"Segoe UI","Helvetica Neue",Arial,"Microsoft YaHei","微软雅黑","PingFang SC",sans-serif;
    color:var(--ink);
    background:linear-gradient(155deg,#e5e0df 0%,#e0e1e4 38%,#d6dce3 70%,#cbd5e1 100%);
    background-attachment:fixed;
    line-height:1.8;
    font-size:16px;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,li,a,span,div,td,th,button,input,textarea{font-family:inherit;}
  a{color:#4c5561;text-decoration:none;transition:color .25s ease,opacity .25s ease;}
  a:hover{color:#2f3640;}
  img{max-width:100%;display:block;border-radius:16px;}
  .wrap{width:min(1180px,92%);margin:0 auto;}

  /* header */
  .site-header{
    position:sticky;top:0;z-index:50;
    backdrop-filter:blur(12px);
    background:rgba(240,240,241,.78);
    border-bottom:1px solid var(--line);
  }
  .header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0;flex-wrap:wrap;}
  .logo{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.5px;color:#414852;}
  .logo .dot{
    width:30px;height:30px;border-radius:10px;
    background:linear-gradient(135deg,#e5e0df,#cbd5e1);
    border:1px solid rgba(255,255,255,.9);
    box-shadow:inset 0 1px 3px rgba(255,255,255,.9),0 4px 12px rgba(140,150,165,.25);
    display:flex;align-items:center;justify-content:center;font-size:15px;
  }
  .nav-links{display:flex;flex-wrap:wrap;gap:6px;}
  .nav-links a{
    padding:8px 14px;border-radius:999px;font-size:14.5px;
    color:#4d5560;border:1px solid transparent;
  }
  .nav-links a:hover{
    background:rgba(255,255,255,.75);
    border-color:var(--line);
    box-shadow:0 4px 14px rgba(140,150,165,.16);
  }

  /* hero */
  .hero{padding:52px 0 26px;}
  .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:center;}
  h1{
    font-size:clamp(24px,3.3vw,38px);
    line-height:1.35;margin:0 0 16px;font-weight:700;letter-spacing:.4px;color:#363b43;
  }
  .hero-sub{color:var(--ink-soft);font-size:16.5px;margin:0 0 22px;}
  .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px;}
  .tag{
    font-size:13px;padding:6px 14px;border-radius:999px;
    background:rgba(255,255,255,.62);border:1px solid var(--line);color:#586070;
  }
  .btn-row{display:flex;flex-wrap:wrap;gap:12px;}
  .btn{
    display:inline-block;padding:11px 24px;border-radius:14px;font-size:15px;
    background:linear-gradient(135deg,#f3f1f0,#d7dee6);
    border:1px solid rgba(255,255,255,.95);
    box-shadow:0 8px 20px rgba(130,140,155,.2);
    color:#3f4650;font-weight:600;
  }
  .btn.ghost{background:rgba(255,255,255,.5);box-shadow:none;}
  .btn:hover{box-shadow:0 10px 26px rgba(130,140,155,.3);}

  /* sections */
  section{padding:34px 0;}
  .panel{
    background:var(--card);
    border:1px solid rgba(255,255,255,.85);
    border-radius:24px;
    box-shadow:var(--shadow);
    padding:30px 30px 26px;
  }
  h2{
    font-size:clamp(19px,2.2vw,25px);margin:0 0 10px;font-weight:700;color:#3a4049;letter-spacing:.3px;
  }
  h3{font-size:17px;margin:0 0 8px;font-weight:700;color:#414852;}
  .lead{color:var(--ink-soft);margin:0 0 18px;font-size:15.5px;}
  .divider{height:1px;background:linear-gradient(90deg,transparent,rgba(150,158,170,.45),transparent);margin:26px 0;}

  .grid{display:grid;gap:18px;}
  .g2{grid-template-columns:repeat(2,1fr);}
  .g3{grid-template-columns:repeat(3,1fr);}
  .g4{grid-template-columns:repeat(4,1fr);}
  .card{
    background:var(--card-2);
    border:1px solid rgba(255,255,255,.8);
    border-radius:20px;
    padding:20px;
    box-shadow:0 6px 18px rgba(140,150,165,.1);
  }
  .card p{margin:0;color:var(--ink-soft);font-size:15px;}
  .num{font-size:26px;font-weight:700;color:#414a56;letter-spacing:.5px;}
  .cn-label{font-size:13px;color:#707a86;letter-spacing:.6px;}

  .news-item{
    background:var(--card-2);
    border:1px solid rgba(255,255,255,.8);
    border-radius:20px;
    padding:20px 22px;
    box-shadow:0 6px 18px rgba(140,150,165,.1);
  }
  .news-item h3{margin-bottom:6px;}
  .news-date{font-size:13px;color:#79828e;letter-spacing:.4px;margin-bottom:8px;display:block;}
  .news-item p{margin:0;color:var(--ink-soft);font-size:14.8px;}

  details.faq-item{
    background:var(--card-2);
    border:1px solid rgba(255,255,255,.8);
    border-radius:18px;
    padding:16px 20px;
    margin-bottom:12px;
    box-shadow:0 6px 18px rgba(140,150,165,.08);
  }
  details.faq-item summary{
    cursor:pointer;font-weight:700;color:#3f4751;font-size:15.6px;list-style:none;
  }
  details.faq-item summary::-webkit-details-marker{display:none;}
  details.faq-item summary::before{content:"❖ ";color:#98a1ad;}
  details.faq-item p{margin:12px 0 0;color:var(--ink-soft);font-size:14.9px;}

  .cta-band{
    background:linear-gradient(135deg,rgba(229,224,223,.9),rgba(203,213,225,.9));
    border:1px solid rgba(255,255,255,.9);
    border-radius:26px;
    padding:34px;
    text-align:center;
    box-shadow:var(--shadow);
  }
  .cta-band p{color:#4c5561;max-width:760px;margin:0 auto 20px;}

  .event-row{
    display:flex;align-items:center;justify-content:space-between;gap:14px;
    padding:14px 18px;border-radius:16px;background:rgba(255,255,255,.55);
    border:1px solid rgba(255,255,255,.8);margin-bottom:10px;flex-wrap:wrap;
  }
  .event-row .vs{font-weight:700;color:#414a56;}
  .event-row .meta{font-size:13px;color:#78818d;}

  .figure-cap{font-size:13px;color:#79828e;margin-top:8px;text-align:center;}

  footer{
    margin-top:40px;padding:34px 0 26px;
    background:linear-gradient(180deg,rgba(255,255,255,.45),rgba(203,213,225,.6));
    border-top:1px solid var(--line);
  }
  .footer-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
  .footer-grid p{margin:6px 0;color:#525a65;font-size:14.6px;}
  .footer-bottom{
    margin-top:22px;padding-top:16px;border-top:1px solid var(--line);
    display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
    font-size:14px;color:#5a626d;
  }
  @media(max-width:900px){
    .hero-grid{grid-template-columns:1fr;}
    .g3,.g4{grid-template-columns:repeat(2,1fr);}
    .footer-grid{grid-template-columns:1fr;}
  }
  @media(max-width:620px){
    .g2,.g3,.g4{grid-template-columns:1fr;}
    .panel{padding:22px 18px;}
  }