:root{
      --bg:#f7f4ee;
      --bg2:#fffdf8;
      --card:#ffffff;
      --line:#e9dfcf;
      --text:#1f2430;
      --muted:#5f6878;
      --brand:#5b6cff;
      --brand2:#19b7a8;
      --brand3:#ff8f4d;
      --shadow:0 16px 40px rgba(39,47,71,.08);
      --radius:20px;
      --radius-sm:14px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 10% 10%, rgba(91,108,255,.10), transparent 24%),
        radial-gradient(circle at 90% 0%, rgba(25,183,168,.11), transparent 22%),
        radial-gradient(circle at 85% 18%, rgba(255,143,77,.09), transparent 18%),
        linear-gradient(180deg,#fbfaf7 0%, var(--bg) 48%, #f8f5f0 100%);
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .topbar{
      position:sticky;top:0;z-index:80;
      backdrop-filter:blur(16px);
      background:rgba(251,250,247,.82);
      border-bottom:1px solid rgba(233,223,207,.8);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      padding:14px 0;
    }
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand .ai-page-logo{width:44px;height:44px;object-fit:contain;flex:none}
    .brand-text{min-width:0}
    .brand-text strong{display:block;font-size:18px;line-height:1.1}
    .brand-text span{display:block;font-size:12px;color:var(--muted);margin-top:4px}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#374151;padding:8px 10px;border-radius:999px;transition:.25s}
    .nav-links a:hover{background:rgba(91,108,255,.08);color:var(--brand)}
    .nav-cta{display:flex;align-items:center;gap:10px}
    .btn{
      border:1px solid transparent;border-radius:999px;padding:11px 16px;font-weight:700;font-size:14px;
      display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;transition:.25s;
      box-shadow:none;background:#fff;color:var(--text)
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),#7d5cff);color:#fff;box-shadow:0 12px 24px rgba(91,108,255,.22)}
    .btn-secondary{background:#fff;border-color:var(--line)}
    .btn:hover{transform:translateY(-1px);box-shadow:var(--shadow)}
    .btn-primary:hover{filter:saturate(1.05)}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);padding:10px 12px;border-radius:12px}
    .hero{
      padding:34px 0 16px;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.25fr .75fr;gap:22px;align-items:stretch;
    }
    .hero-main{
      position:relative;
      border:1px solid rgba(233,223,207,.9);
      background:
        linear-gradient(135deg, rgba(255,255,255,.92), rgba(247,244,238,.86)),
        radial-gradient(circle at top right, rgba(91,108,255,.12), transparent 26%),
        radial-gradient(circle at bottom left, rgba(25,183,168,.11), transparent 30%);
      border-radius:28px;
      padding:34px;
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .hero-main::before{
      content:"";
      position:absolute;inset:-2px;
      background:
        linear-gradient(120deg, transparent 0%, rgba(91,108,255,.06) 20%, transparent 36%),
        linear-gradient(300deg, transparent 0%, rgba(255,143,77,.08) 18%, transparent 34%);
      pointer-events:none;
      transform:translateX(-8%);
    }
    .hero-kicker{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;border-radius:999px;
      background:rgba(91,108,255,.08);color:#3143db;font-weight:700;font-size:13px;
      border:1px solid rgba(91,108,255,.12);
      position:relative;z-index:1;
    }
    h1{
      margin:16px 0 12px;
      font-size:clamp(30px,5vw,56px);
      line-height:1.06;
      letter-spacing:-.03em;
      max-width:12em;
      position:relative;z-index:1;
    }
    .hero-desc{
      color:var(--muted);font-size:16px;line-height:1.8;max-width:58ch;position:relative;z-index:1;
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;position:relative;z-index:1}
    .hero-points{
      display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:26px;position:relative;z-index:1
    }
    .point{
      background:rgba(255,255,255,.86);border:1px solid rgba(233,223,207,.9);
      border-radius:18px;padding:14px 16px;min-height:92px;
    }
    .point strong{display:block;font-size:18px;margin-bottom:8px}
    .point span{color:var(--muted);font-size:13px;line-height:1.6}
    .hero-side{
      display:grid;gap:16px;
    }
    .side-card{
      border-radius:24px;background:rgba(255,255,255,.9);border:1px solid rgba(233,223,207,.92);
      box-shadow:var(--shadow);padding:22px;
    }
    .side-card h3{margin:0 0 12px;font-size:18px}
    .stats{
      display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;
    }
    .stat{
      padding:16px;border-radius:18px;background:linear-gradient(180deg,#fff, #fbf8f2);
      border:1px solid var(--line);
    }
    .stat strong{display:block;font-size:24px;line-height:1.1}
    .stat span{display:block;color:var(--muted);font-size:13px;margin-top:8px;line-height:1.5}
    .mini-list{display:grid;gap:10px;margin:0;padding:0;list-style:none}
    .mini-list li{display:flex;gap:10px;align-items:flex-start;color:#374151;font-size:14px;line-height:1.6}
    .mini-dot{width:10px;height:10px;border-radius:50%;margin-top:5px;background:linear-gradient(135deg,var(--brand2),var(--brand))}
    section{padding:22px 0}
    .section-head{
      display:flex;align-items:end;justify-content:space-between;gap:14px;margin-bottom:16px;
    }
    .section-head h2{margin:0;font-size:28px;line-height:1.15}
    .section-head p{margin:0;color:var(--muted);max-width:70ch;line-height:1.7}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
    .card{
      background:rgba(255,255,255,.92);
      border:1px solid rgba(233,223,207,.95);
      border-radius:24px;padding:22px;box-shadow:0 10px 26px rgba(39,47,71,.05);
      transition:.25s;
    }
    .card:hover{transform:translateY(-3px);box-shadow:0 16px 36px rgba(39,47,71,.10)}
    .card h3{margin:0 0 10px;font-size:20px}
    .card p{margin:0;color:var(--muted);line-height:1.75}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:#354052}
    .flow{
      display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px
    }
    .step{
      padding:20px;border-radius:22px;background:linear-gradient(180deg,#fff, #fcf9f4);border:1px solid var(--line)
    }
    .step-num{
      width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
      background:linear-gradient(135deg,var(--brand),#8b5cf6);color:#fff;font-weight:800;margin-bottom:12px
    }
    .table-wrap{overflow-x:auto;border-radius:22px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:16px 14px;text-align:left;border-bottom:1px solid #eee7db;vertical-align:top}
    th{background:#fbf8f1;font-size:14px}
    td{font-size:14px;color:#374151;line-height:1.7}
    .badge{
      display:inline-flex;align-items:center;gap:6px;padding:7px 10px;border-radius:999px;font-size:12px;font-weight:700;
      background:rgba(25,183,168,.10);color:#0d7b70;border:1px solid rgba(25,183,168,.16)
    }
    .rating{
      display:grid;grid-template-columns:1fr auto;gap:16px;align-items:center
    }
    .stars{color:#ffb400;font-size:20px;letter-spacing:2px}
    .score{font-size:44px;font-weight:900;line-height:1;color:var(--brand)}
    .score small{font-size:14px;color:var(--muted);font-weight:600}
    .reviews{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .review .meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
    .review .role{font-size:13px;color:var(--muted)}
    .review .name{font-weight:800}
    .review .quote{color:#374151;line-height:1.8;font-size:14px}
    .articles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .article a{color:var(--brand);font-weight:700}
    .article time{display:block;font-size:12px;color:var(--muted);margin-bottom:8px}
    .media-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .media-card{overflow:hidden}
    .media-card img{width:100%;height:auto;border-radius:18px;border:1px solid var(--line)}
    .faq details{
      background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px 18px;box-shadow:0 8px 24px rgba(39,47,71,.04)
    }
    .faq details+details{margin-top:12px}
    .faq summary{cursor:pointer;font-weight:700;list-style:none}
    .faq summary::-webkit-details-marker{display:none}
    .faq p{margin:12px 0 0;color:var(--muted);line-height:1.8}
    .contact-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:16px}
    form{
      display:grid;gap:12px
    }
    .field{display:grid;gap:8px}
    label{font-size:14px;font-weight:700;color:#374151}
    input,select,textarea{
      width:100%;border:1px solid #dcd2c3;background:#fff;border-radius:14px;padding:13px 14px;font:inherit;color:var(--text);
      outline:none;transition:.2s
    }
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:rgba(91,108,255,.65);box-shadow:0 0 0 4px rgba(91,108,255,.10)}
    .contact-card{display:grid;gap:14px}
    .qrcode{
      display:grid;grid-template-columns:120px 1fr;gap:14px;align-items:center;
      padding:16px;border-radius:18px;background:#fff;border:1px solid var(--line)
    }
    .qrcode img{width:120px;height:120px;object-fit:cover;border-radius:14px;border:1px solid var(--line)}
    .footer{
      margin-top:18px;padding:22px 0 30px;border-top:1px solid rgba(233,223,207,.92);
      background:linear-gradient(180deg,rgba(251,250,247,.3),rgba(247,244,238,.85));
      color:#2a3140;
    }
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:16px}
    .footer h3{margin:0 0 10px;font-size:18px}
    .footer p,.footer a,.footer li{color:#394355;line-height:1.8;font-size:14px}
    .footer ul{margin:0;padding:0;list-style:none}
    .footer .links{display:flex;flex-wrap:wrap;gap:10px}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:90;display:grid;gap:10px
    }
    .floating a,.floating button{
      width:52px;height:52px;border-radius:16px;border:1px solid rgba(233,223,207,.95);background:#fff;
      display:grid;place-items:center;box-shadow:var(--shadow);cursor:pointer;color:var(--text)
    }
    .floating .up{background:linear-gradient(135deg,var(--brand2),#2dd4bf);color:#fff;border:none}
    .mobile-only{display:none}
    .reveal{opacity:0;transform:translateY(18px);transition:.55s ease}
    .reveal.in{opacity:1;transform:none}
    .pill-row{display:flex;flex-wrap:wrap;gap:10px}
    .price-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .price{
      padding:20px;border-radius:22px;background:#fff;border:1px solid var(--line)
    }
    .price strong{display:block;font-size:18px}
    .price .num{font-size:30px;font-weight:900;color:var(--brand);margin:10px 0}
    .timeline{display:grid;gap:12px}
    .time-item{display:grid;grid-template-columns:92px 1fr;gap:12px;align-items:start;padding:16px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .time-item span{font-weight:800;color:var(--brand)}
    .network{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
    .network .node{padding:16px;border-radius:18px;border:1px solid var(--line);background:#fff}
    @media (max-width: 1024px){
      .hero-grid,.contact-layout,.footer-grid,.grid-3,.reviews,.articles,.price-list,.network,.media-grid,.grid-2{grid-template-columns:1fr 1fr}
      .flow{grid-template-columns:1fr 1fr}
      .hero-points{grid-template-columns:1fr}
      .footer-grid,.contact-layout,.hero-grid{grid-template-columns:1fr}
    }
    @media (max-width: 760px){
      .container{width:min(var(--container), calc(100% - 24px))}
      .nav-links,.nav-cta{display:none}
      .menu-btn{display:inline-grid;place-items:center}
      .mobile-only{display:block}
      .mobile-panel{
        display:none; padding:0 0 14px;
      }
      .mobile-panel.open{display:block}
      .mobile-panel .panel{
        background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;display:grid;gap:8px;box-shadow:var(--shadow)
      }
      .mobile-panel a{padding:10px 12px;border-radius:12px;background:#faf7f1}
      .hero-main{padding:24px}
      .hero-actions{flex-direction:column}
      .hero-actions .btn{width:100%}
      .section-head{flex-direction:column;align-items:flex-start}
      .grid-3,.reviews,.articles,.price-list,.network,.media-grid,.grid-2,.flow{grid-template-columns:1fr}
      .stats{grid-template-columns:1fr 1fr}
      .rating{grid-template-columns:1fr}
      .qrcode{grid-template-columns:1fr}
      .qrcode img{width:100%;height:auto;max-width:220px}
      h1{max-width:none}
    }