:root{
      --bg:#f6f7fb;
      --bg2:#eef4ff;
      --card:#ffffff;
      --text:#172033;
      --muted:#5e6b84;
      --line:#dde4f2;
      --brand:#0f62fe;
      --brand2:#ff4d6d;
      --brand3:#7c3aed;
      --accent:#12b886;
      --shadow:0 18px 50px rgba(16,24,40,.10);
      --shadow2:0 10px 30px rgba(15,98,254,.16);
      --radius:22px;
      --radius-sm:16px;
      --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 top left, rgba(15,98,254,.10), transparent 28%),
        radial-gradient(circle at top right, rgba(255,77,109,.10), transparent 24%),
        linear-gradient(180deg, #fbfcff 0%, #f5f7fc 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}
    .site-header{
      position:sticky;top:0;z-index:30;
      backdrop-filter:saturate(160%) blur(16px);
      background:rgba(251,252,255,.84);
      border-bottom:1px solid rgba(221,228,242,.85);
    }
    .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:44px;height:44px;object-fit:contain;border-radius:12px;background:#fff;border:1px solid var(--line);padding:6px}
    .brand .name{font-weight:800;font-size:18px;letter-spacing:.5px;white-space:nowrap}
    .brand .sub{font-size:12px;color:var(--muted);margin-top:2px}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:var(--text);opacity:.9}
    .nav-links a:hover,.nav-links a:focus{color:var(--brand)}
    .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;font-size:14px;cursor:pointer;transition:.25s ease;
      white-space:nowrap
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),#3d8bff);color:#fff;box-shadow:var(--shadow2)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(15,98,254,.24)}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-ghost:hover{border-color:#b8c7e6;transform:translateY(-1px)}
    .menu-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:14px;width:46px;height:46px}
    .menu-toggle span{display:block;width:20px;height:2px;background:var(--text);margin:4px auto;border-radius:2px}
    main{position:relative}
    section{padding:72px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:24px}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      color:var(--brand);font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase
    }
    .eyebrow::before{content:"";width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--brand2),var(--brand));box-shadow:0 0 0 6px rgba(15,98,254,.08)}
    h1,h2,h3{margin:0;line-height:1.15}
    h1{font-size:clamp(34px,5vw,62px);max-width:12em;letter-spacing:-.03em}
    h2{font-size:clamp(26px,3vw,38px)}
    h3{font-size:20px}
    p{margin:0;color:var(--muted);line-height:1.8}
    .hero{padding:34px 0 74px}
    .hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:24px;align-items:stretch}
    .hero-card{
      background:
        linear-gradient(135deg, rgba(15,98,254,.08), rgba(255,77,109,.08)),
        linear-gradient(180deg, #fff, #f9fbff);
      border:1px solid rgba(221,228,242,.9);
      border-radius:32px;
      box-shadow:var(--shadow);
      padding:34px;
      position:relative;overflow:hidden
    }
    .hero-card::after{
      content:"";position:absolute;inset:auto -80px -80px auto;width:240px;height:240px;border-radius:50%;
      background:radial-gradient(circle, rgba(124,58,237,.16), transparent 65%);pointer-events:none
    }
    .hero-tagline{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
    .pill{
      display:inline-flex;align-items:center;gap:6px;border:1px solid rgba(15,98,254,.14);
      background:rgba(15,98,254,.06);color:#1741a6;border-radius:999px;padding:8px 12px;font-size:13px;font-weight:700
    }
    .hero p.lead{font-size:17px;max-width:42em;margin-top:16px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 18px}
    .hero-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}
    .mini-stat{
      background:rgba(255,255,255,.88);border:1px solid var(--line);border-radius:18px;padding:16px
    }
    .mini-stat strong{display:block;font-size:22px;margin-bottom:6px}
    .mini-stat span{font-size:13px;color:var(--muted)}
    .hero-side{
      display:grid;gap:16px;align-content:stretch
    }
    .side-card{
      background:rgba(255,255,255,.88);border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:var(--shadow)
    }
    .side-card .top{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:14px}
    .score{font-size:28px;font-weight:900;color:var(--brand)}
    .stat-list{display:grid;gap:10px}
    .stat-row{display:flex;justify-content:space-between;gap:10px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:14px}
    .stat-row:last-child{border-bottom:0;padding-bottom:0}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .card{
      background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
      box-shadow:0 8px 26px rgba(16,24,40,.06);padding:22px;transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease
    }
    .card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#c6d4ee}
    .card h3{margin-bottom:8px}
    .card p{font-size:14px}
    .icon{
      width:46px;height:46px;border-radius:14px;display:grid;place-items:center;margin-bottom:14px;
      background:linear-gradient(135deg, rgba(15,98,254,.12), rgba(255,77,109,.12));color:var(--brand);font-weight:900
    }
    .feature-bars{display:grid;gap:12px;margin-top:18px}
    .bar{background:#edf2fb;border-radius:999px;overflow:hidden;height:10px}
    .bar > span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--brand2))}
    .workflow{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{
      position:relative;background:linear-gradient(180deg,#fff,#fbfcff);border:1px solid var(--line);
      border-radius:22px;padding:22px
    }
    .step-num{
      width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--brand3));color:#fff;
      display:grid;place-items:center;font-weight:800;margin-bottom:16px
    }
    table{width:100%;border-collapse:separate;border-spacing:0}
    .table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow)}
    th,td{padding:16px 18px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left;font-size:14px}
    th{background:#f7f9ff;font-size:14px}
    tr:last-child td{border-bottom:0}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:10px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:#32425f}
    .split{
      display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:start
    }
    .quote{position:relative}
    .quote::before{content:"“";position:absolute;top:6px;right:18px;font-size:76px;line-height:1;color:rgba(15,98,254,.10);font-family:serif}
    .review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review .meta{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-top:14px;font-size:13px;color:var(--muted)}
    .stars{color:#ffb400;letter-spacing:2px}
    .faq{display:grid;gap:12px}
    details{
      background:#fff;border:1px solid var(--line);border-radius:18px;padding:0 18px;box-shadow:0 6px 20px rgba(16,24,40,.04)
    }
    summary{
      list-style:none;cursor:pointer;padding:18px 0;font-weight:700;outline:none
    }
    summary::-webkit-details-marker{display:none}
    details p{padding:0 0 18px}
    .article-list{display:grid;gap:14px}
    .article{
      display:flex;justify-content:space-between;gap:14px;align-items:center;
      padding:16px 18px;background:#fff;border:1px solid var(--line);border-radius:18px
    }
    .article small{color:var(--muted)}
    .contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:18px}
    form{
      display:grid;gap:14px;background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:var(--shadow)
    }
    .field{display:grid;gap:8px}
    label{font-weight:700;font-size:14px}
    input,select,textarea{
      width:100%;border:1px solid #d5def0;border-radius:14px;padding:13px 14px;font:inherit;background:#fff;color:var(--text);
      outline:none;transition:border-color .2s, box-shadow .2s
    }
    input:focus,select:focus,textarea:focus{border-color:rgba(15,98,254,.55);box-shadow:0 0 0 4px rgba(15,98,254,.12)}
    textarea{min-height:120px;resize:vertical}
    .contact-card{
      display:grid;gap:16px;background:linear-gradient(180deg,#fff,#f8fbff);border:1px solid var(--line);border-radius:24px;padding:22px
    }
    .contact-lines{display:grid;gap:10px}
    .contact-line{display:flex;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:14px}
    .contact-line:last-child{border-bottom:0}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:40;display:grid;gap:10px
    }
    .float-btn{
      width:54px;height:54px;border-radius:18px;background:linear-gradient(135deg,var(--brand),var(--brand2));
      color:#fff;display:grid;place-items:center;box-shadow:var(--shadow2);border:0
    }
    .float-panel{
      width:min(320px, calc(100vw - 32px));
      background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:14px;display:none
    }
    .floating.open .float-panel{display:block}
    .float-panel .qr{display:flex;gap:12px;align-items:center}
    .float-panel img{width:88px;height:88px;object-fit:cover;border-radius:14px;border:1px solid var(--line)}
    .footer{
      padding:26px 0 34px;border-top:1px solid var(--line);background:#f8faff;color:#22314f
    }
    .footer a{color:#173c9b}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}
    .footer small,.footer p{color:#4f5f7c}
    .mobile-only{display:none}
    .pill-row{display:flex;flex-wrap:wrap;gap:10px}
    .timeline{display:grid;gap:12px}
    .timeline-item{display:grid;grid-template-columns:90px 1fr;gap:14px;align-items:start;padding:14px 16px;border:1px solid var(--line);border-radius:18px;background:#fff}
    .timeline-item strong{color:var(--brand)}
    .reveal{opacity:0;transform:translateY(18px);transition:.65s ease}
    .reveal.show{opacity:1;transform:none}
    @media (max-width: 980px){
      .hero-grid,.split,.contact-grid,.footer-grid{grid-template-columns:1fr}
      .grid-4,.grid-3,.workflow,.review-grid{grid-template-columns:1fr 1fr}
      .section-head{align-items:start;flex-direction:column}
      h1{max-width:none}
    }
    @media (max-width: 760px){
      .nav-links,.nav-actions .btn-ghost{display:none}
      .menu-toggle{display:inline-grid;place-items:center}
      .mobile-only{display:inline-flex}
      .grid-4,.grid-3,.workflow,.review-grid,.hero-meta{grid-template-columns:1fr}
      section{padding:56px 0}
      .hero{padding-top:22px}
      .hero-card{padding:24px;border-radius:24px}
      .side-card,.card,form,.contact-card{padding:18px}
      .timeline-item{grid-template-columns:1fr}
    }