:root{
      --bg:#f6f8fc;
      --bg2:#ffffff;
      --card:#ffffff;
      --ink:#132033;
      --muted:#5d6b82;
      --line:#dde6f1;
      --brand:#4f7cff;
      --brand2:#ff7a59;
      --brand3:#38c6a9;
      --brand4:#8b5cf6;
      --shadow:0 18px 50px rgba(19,32,51,.08);
      --radius:20px;
      --radius2:28px;
      --max:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at top left, rgba(79,124,255,.12), transparent 26%),
        radial-gradient(circle at top right, rgba(255,122,89,.10), transparent 24%),
        linear-gradient(180deg, #fbfdff 0%, #f4f7fb 45%, #f7f9fd 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(100% - 32px, var(--max));margin:0 auto}
    .topbar{
      position:sticky;top:0;z-index:40;
      backdrop-filter:saturate(180%) blur(14px);
      background:rgba(246,248,252,.82);
      border-bottom:1px solid rgba(221,230,241,.9);
    }
    .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 img{width:42px;height:42px;object-fit:contain;border-radius:12px;background:#fff;padding:4px;border:1px solid var(--line)}
    .brand .name{font-weight:800;letter-spacing:.5px}
    .brand .sub{font-size:12px;color:var(--muted);margin-top:3px}
    .navlinks{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .navlinks a{font-size:14px;color:var(--muted);padding:8px 10px;border-radius:999px;transition:.2s}
    .navlinks a:hover{background:#eef3ff;color:var(--ink)}
    .nav-cta{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:1px solid transparent;border-radius:999px;
      padding:12px 18px;font-weight:700;transition:.22s ease;
      box-shadow:none;cursor:pointer;
    }
    .btn-primary{
      background:linear-gradient(135deg,var(--brand),#6f8dff);
      color:#fff;box-shadow:0 12px 30px rgba(79,124,255,.24);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(79,124,255,.30)}
    .btn-ghost{
      background:#fff;color:var(--ink);border-color:var(--line);
    }
    .btn-ghost:hover{transform:translateY(-2px);border-color:#bfd0ff;box-shadow:var(--shadow)}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px}
    .menu-btn span{display:block;width:20px;height:2px;background:var(--ink);margin:4px 0;border-radius:2px}
    header.hero{padding:34px 0 18px}
    .hero-shell{
      position:relative;overflow:hidden;border:1px solid rgba(221,230,241,.9);
      border-radius:34px;background:
      linear-gradient(135deg, rgba(255,255,255,.96), rgba(248,250,255,.92));
      box-shadow:var(--shadow);
    }
    .hero-shell:before,.hero-shell:after{
      content:"";position:absolute;border-radius:50%;filter:blur(20px);opacity:.85;pointer-events:none
    }
    .hero-shell:before{width:220px;height:220px;background:rgba(79,124,255,.14);right:-60px;top:-40px}
    .hero-shell:after{width:160px;height:160px;background:rgba(255,122,89,.14);left:-40px;bottom:-30px}
    .hero-inner{
      padding:38px 22px 30px;display:grid;grid-template-columns:1.18fr .82fr;gap:24px;align-items:stretch
    }
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:#2140aa;
      background:linear-gradient(135deg,rgba(79,124,255,.12),rgba(56,198,169,.10));
      border:1px solid rgba(79,124,255,.16);padding:8px 14px;border-radius:999px
    }
    h1{margin:18px 0 14px;font-size:clamp(32px,5vw,54px);line-height:1.08;letter-spacing:-.02em}
    .lead{font-size:17px;line-height:1.8;color:var(--muted);max-width:62ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 18px}
    .hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
    .chip{
      display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border-radius:999px;
      background:#fff;border:1px solid var(--line);color:var(--ink);font-size:13px;box-shadow:0 8px 24px rgba(19,32,51,.04)
    }
    .hero-card{
      background:linear-gradient(180deg, rgba(255,255,255,.96), rgba(241,246,255,.98));
      border:1px solid var(--line);border-radius:28px;padding:22px;box-shadow:0 16px 34px rgba(19,32,51,.07)
    }
    .hero-card h2{font-size:18px;margin:0 0 12px}
    .stat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
    .stat{
      border:1px solid var(--line);border-radius:20px;background:#fff;padding:16px
    }
    .stat strong{display:block;font-size:24px;line-height:1.1}
    .stat span{display:block;color:var(--muted);font-size:13px;margin-top:6px;line-height:1.5}
    main{padding-bottom:14px}
    section{padding:14px 0 0}
    .section-title{display:flex;align-items:end;justify-content:space-between;gap:16px;margin:24px 0 16px}
    .section-title h2{margin:0;font-size:28px}
    .section-title p{margin:0;color:var(--muted);max-width:68ch;line-height:1.7}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .card{
      background:linear-gradient(180deg,#fff, #fbfcff);
      border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 10px 28px rgba(19,32,51,.05);
      transition:.22s ease
    }
    .card:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(19,32,51,.09)}
    .card h3{margin:0 0 10px;font-size:18px}
    .card p,.card li{color:var(--muted);line-height:1.8}
    .icon{
      width:46px;height:46px;border-radius:16px;display:grid;place-items:center;margin-bottom:14px;
      background:linear-gradient(135deg, rgba(79,124,255,.12), rgba(255,122,89,.12));color:#2140aa;font-weight:800
    }
    .list{padding-left:18px;margin:0}
    .panel{
      border:1px solid var(--line);border-radius:24px;background:rgba(255,255,255,.92);
      overflow:hidden;box-shadow:var(--shadow)
    }
    .panel-head{padding:16px 18px;font-weight:800;display:flex;align-items:center;justify-content:space-between;gap:12px;cursor:pointer}
    .panel-body{padding:0 18px 18px;color:var(--muted);line-height:1.8;display:none}
    .panel.active .panel-body{display:block}
    .timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .step{
      position:relative;padding:18px;border-radius:22px;background:#fff;border:1px solid var(--line)
    }
    .step .num{font-weight:900;color:#2140aa;margin-bottom:10px}
    .compare-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:24px;background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:16px 14px;border-bottom:1px solid #edf1f6;text-align:left;vertical-align:top}
    th{background:#f7f9fd;color:var(--ink);font-size:14px}
    td{color:var(--muted);font-size:14px;line-height:1.7}
    .highlight{
      color:#14307d;font-weight:800;background:linear-gradient(135deg,rgba(79,124,255,.08),rgba(56,198,169,.08));
    }
    .tags{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:var(--ink)
    }
    .pricing{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .price{
      border-radius:24px;padding:22px;border:1px solid var(--line);background:#fff;position:relative;overflow:hidden
    }
    .price.featured{border-color:rgba(79,124,255,.28);box-shadow:0 18px 46px rgba(79,124,255,.12)}
    .price .label{display:inline-flex;padding:7px 12px;border-radius:999px;background:#eef4ff;color:#2140aa;font-size:12px;font-weight:700}
    .price h3{margin:14px 0 8px}
    .price strong{font-size:34px}
    .price ul{margin:16px 0 0;padding-left:18px}
    .reviews{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .quote{font-size:15px;line-height:1.8;color:var(--muted)}
    .quote strong{color:var(--ink)}
    .form-wrap{display:grid;grid-template-columns:1.02fr .98fr;gap:16px;align-items:stretch}
    form{display:grid;gap:12px}
    input,select,textarea{
      width:100%;border:1px solid var(--line);background:#fff;color:var(--ink);
      border-radius:14px;padding:13px 14px;font:inherit;outline:none;transition:.2s
    }
    input:focus,select:focus,textarea:focus{border-color:#8aa6ff;box-shadow:0 0 0 4px rgba(79,124,255,.10)}
    textarea{min-height:118px;resize:vertical}
    .foot{
      margin-top:18px;padding:22px 0 36px;background:linear-gradient(180deg, rgba(255,255,255,.65), rgba(246,248,252,.9));
      border-top:1px solid rgba(221,230,241,.9)
    }
    .footer-grid{display:grid;grid-template-columns:1.15fr .85fr .95fr;gap:18px}
    .footer-grid h3{margin:0 0 12px}
    .footer-grid p,.footer-grid a,.footer-grid li{color:var(--muted);line-height:1.8}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{padding:8px 11px;border-radius:999px;background:#fff;border:1px solid var(--line)}
    .copyright{margin-top:18px;padding-top:14px;border-top:1px solid var(--line);color:var(--muted);font-size:13px}
    .floatbar{
      position:fixed;right:16px;bottom:16px;z-index:50;display:flex;flex-direction:column;gap:10px
    }
    .floatbar a,.floatbar button{
      width:52px;height:52px;border-radius:18px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow);
      display:grid;place-items:center;cursor:pointer;color:var(--ink);font-weight:800
    }
    .floatbar a:hover,.floatbar button:hover{transform:translateY(-2px)}
    .mobile-menu{display:none}
    .subgrid{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}
    .media-banner{border-radius:24px;border:1px solid var(--line);overflow:hidden;background:#fff}
    .media-banner img{width:100%;height:auto;display:block}
    .accordion{display:grid;gap:12px}
    .faq-item{border:1px solid var(--line);border-radius:18px;background:#fff;overflow:hidden}
    .faq-q{width:100%;text-align:left;padding:16px 18px;background:#fff;border:0;display:flex;justify-content:space-between;gap:14px;cursor:pointer;font:inherit;color:var(--ink);font-weight:700}
    .faq-a{display:none;padding:0 18px 16px;color:var(--muted);line-height:1.8}
    .faq-item.open .faq-a{display:block}
    .dot{width:8px;height:8px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 5px rgba(79,124,255,.12)}
    .article-list{display:grid;gap:12px}
    .article{
      display:flex;justify-content:space-between;gap:12px;align-items:flex-start;
      padding:15px 16px;border-radius:18px;background:#fff;border:1px solid var(--line)
    }
    .article small{display:block;color:var(--muted);margin-top:4px}
    @media (max-width: 980px){
      .hero-inner,.grid-3,.grid-4,.timeline,.pricing,.reviews,.form-wrap,.subgrid,.footer-grid{grid-template-columns:1fr}
      .navlinks,.nav-cta{display:none}
      .menu-btn{display:inline-block}
      .mobile-menu{display:none;padding:0 0 14px}
      .mobile-menu.open{display:block}
      .mobile-menu .navlinks{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
      .mobile-menu .navlinks a{background:#fff;border:1px solid var(--line);text-align:center}
      .section-title{align-items:flex-start;flex-direction:column}
      .hero-shell{border-radius:28px}
      .hero-inner{padding:26px 16px}
      .stat-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 640px){
      .container{width:min(100% - 20px, var(--max))}
      h1{font-size:31px}
      .lead{font-size:15px}
      .stat-grid{grid-template-columns:1fr}
      .hero-actions .btn{width:100%}
      .hero-actions{display:grid}
      table{min-width:760px}
      .floatbar{right:10px;bottom:10px}
    }
    .reveal{opacity:0;transform:translateY(18px);transition:.6s ease}
    .reveal.show{opacity:1;transform:none}