:root{
      --bg:#f6f7fb;
      --panel:#ffffff;
      --panel2:#f9fbff;
      --text:#1f2a37;
      --muted:#5f6b7a;
      --line:#dbe3ef;
      --brand:#2563eb;
      --brand2:#7c3aed;
      --brand3:#14b8a6;
      --warm:#ffb84d;
      --shadow:0 16px 40px rgba(31,42,55,.08);
      --radius:18px;
      --radius2:24px;
      --max:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:
      radial-gradient(circle at top left, rgba(37,99,235,.08), transparent 26%),
      radial-gradient(circle at 85% 12%, rgba(124,58,237,.10), transparent 24%),
      linear-gradient(180deg,#f8fbff 0%, #f4f7fb 100%);
      color:var(--text);line-height:1.65}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--max),calc(100% - 32px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:60;background:rgba(246,247,251,.82);backdrop-filter:blur(12px);border-bottom:1px solid rgba(219,227,239,.72)}
    .nav{display:flex;align-items:center;justify-content:space-between;gap:18px;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:10px;background:#fff;padding:4px;border:1px solid var(--line)}
    .brand strong{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted)}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:var(--muted);padding:8px 10px;border-radius:999px;transition:.2s ease}
    .nav-links a:hover,.nav-links a.active{color:var(--text);background:rgba(37,99,235,.08)}
    .nav-cta{display:flex;align-items:center;gap:10px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:999px;padding:12px 18px;font-weight:700;cursor:pointer;transition:.22s ease;box-shadow:none}
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 12px 24px rgba(37,99,235,.18)}
    .btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 30px rgba(37,99,235,.22)}
    .btn-ghost{background:#fff;color:var(--text);border:1px solid var(--line)}
    .btn-ghost:hover{border-color:#bfd0ea;transform:translateY(-1px)}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);width:44px;height:44px;border-radius:14px}
    .menu-btn span{display:block;width:20px;height:2px;background:#1f2a37;margin:4px auto;border-radius:2px}
    main{display:block}
    section{padding:28px 0}
    .hero{padding:34px 0 24px}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch}
    .hero-copy{background:linear-gradient(180deg,rgba(255,255,255,.82),rgba(255,255,255,.95));border:1px solid rgba(219,227,239,.82);box-shadow:var(--shadow);border-radius:28px;padding:34px;position:relative;overflow:hidden}
    .hero-copy:before,.hero-copy:after{content:"";position:absolute;border-radius:999px;filter:blur(1px);opacity:.9}
    .hero-copy:before{width:120px;height:120px;background:radial-gradient(circle, rgba(20,184,166,.22), transparent 70%);right:14px;top:14px}
    .hero-copy:after{width:180px;height:180px;background:radial-gradient(circle, rgba(124,58,237,.16), transparent 70%);right:-30px;bottom:-40px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:rgba(37,99,235,.08);color:#1746a2;font-weight:700;font-size:13px}
    h1{margin:16px 0 12px;font-size:clamp(32px,5vw,56px);line-height:1.08;letter-spacing:-.03em}
    .lead{font-size:17px;color:var(--muted);max-width:56ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 18px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}
    .point{background:rgba(245,248,255,.95);border:1px solid var(--line);border-radius:18px;padding:14px}
    .point strong{display:block;font-size:16px}
    .point span{display:block;color:var(--muted);font-size:13px;margin-top:4px}
    .hero-panel{display:grid;gap:14px}
    .stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .stat,.panel-card{background:var(--panel);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:18px}
    .stat .n{font-size:28px;font-weight:800;background:linear-gradient(135deg,var(--brand),var(--brand2));-webkit-background-clip:text;background-clip:text;color:transparent}
    .stat p,.panel-card p,.section-sub{color:var(--muted)}
    .mini-list{display:grid;gap:10px}
    .mini-item{display:flex;align-items:flex-start;gap:10px;padding:12px 0;border-top:1px dashed var(--line)}
    .mini-item:first-child{border-top:0;padding-top:0}
    .dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--brand3),var(--brand));margin-top:7px;flex:0 0 auto}
    .section-head{display:flex;justify-content:space-between;gap:16px;align-items:end;margin-bottom:18px}
    .section-head h2{margin:0;font-size:28px;line-height:1.2}
    .section-head p{margin:0;color:var(--muted);max-width:68ch}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 12px 28px rgba(31,42,55,.06);transition:.22s ease}
    .card:hover{transform:translateY(-4px);box-shadow:0 18px 36px rgba(31,42,55,.10)}
    .card h3{margin:0 0 10px;font-size:18px}
    .card p{margin:0;color:var(--muted)}
    .badge{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;background:rgba(20,184,166,.10);color:#0f766e;font-size:12px;font-weight:700;margin-bottom:12px}
    .workflow{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .step{position:relative}
    .step .num{font-size:13px;font-weight:800;color:#1746a2;margin-bottom:10px}
    .step:after{content:"";position:absolute;right:-8px;top:32px;width:16px;height:2px;background:linear-gradient(90deg,var(--brand),transparent)}
    .step:last-child:after{display:none}
    .table-wrap{overflow-x:auto;background:var(--panel);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:16px 18px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left}
    th{background:linear-gradient(180deg,#f7faff,#eef4ff);font-size:14px}
    tr:last-child td{border-bottom:0}
    .highlight{font-weight:800;color:#0f766e}
    .rating{display:flex;align-items:center;gap:6px;color:#b45309;font-weight:800}
    .stars{letter-spacing:2px}
    .two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .tags{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:9px 13px;background:#fff;border:1px solid var(--line);border-radius:999px;color:#334155;font-size:13px}
    .pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .price{background:linear-gradient(180deg,#ffffff,#f8fbff);border:1px solid var(--line);border-radius:24px;padding:22px;position:relative}
    .price.featured{border-color:#b9cdf2;box-shadow:0 18px 40px rgba(37,99,235,.10)}
    .price .amt{font-size:30px;font-weight:900;color:#111827;margin:8px 0}
    .price ul{margin:0;padding-left:18px;color:var(--muted)}
    .faq{display:grid;gap:12px}
    .faq-item{background:var(--panel);border:1px solid var(--line);border-radius:18px;overflow:hidden}
    .faq-q{width:100%;background:transparent;border:0;padding:18px 20px;font-size:16px;font-weight:700;color:var(--text);display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;cursor:pointer}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease,padding .28s ease;color:var(--muted);padding:0 20px}
    .faq-item.open .faq-a{max-height:220px;padding:0 20px 18px}
    .faq-item.open .chev{transform:rotate(180deg)}
    .chev{transition:.2s ease}
    .reviews,.articles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review small{color:#64748b}
    .timeline{display:grid;gap:12px}
    .time-item{display:grid;grid-template-columns:120px 1fr;gap:16px;align-items:start;background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:16px 18px}
    .time-item strong{color:#0f172a}
    .form{background:var(--panel);border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow);padding:22px}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    label{display:block;font-size:14px;font-weight:700;margin-bottom:8px}
    input,select,textarea{width:100%;border:1px solid #cfd8e6;border-radius:14px;padding:12px 14px;font:inherit;color:var(--text);background:#fff;outline:none}
    textarea{min-height:128px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#8fb1f0;box-shadow:0 0 0 4px rgba(37,99,235,.10)}
    .form-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:14px}
    .contact-strip{display:grid;grid-template-columns:1.05fr .95fr;gap:16px}
    .qrcode{display:flex;gap:14px;align-items:center;background:linear-gradient(180deg,#fff,#f8fbff);border:1px solid var(--line);border-radius:22px;padding:18px}
    .qrcode img{width:112px;height:112px;object-fit:cover;border-radius:16px;border:1px solid var(--line);background:#fff}
    .floating{position:fixed;right:18px;bottom:18px;z-index:70;display:grid;gap:10px}
    .floating a,.floating button{width:52px;height:52px;border-radius:18px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow);display:grid;place-items:center;color:var(--text);cursor:pointer}
    .backtop{display:none}
    .site-footer{margin-top:18px;background:#eef3fb;border-top:1px solid var(--line);color:#1e293b}
    .site-footer a{color:#173f8a}
    .footer-grid{display:grid;grid-template-columns:1.25fr .75fr 1fr;gap:16px;padding:26px 0}
    .footer-grid h3{margin:0 0 10px}
    .link-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .link-cloud a{padding:8px 11px;border-radius:999px;background:#fff;border:1px solid var(--line)}
    .copyright{border-top:1px solid var(--line);padding:14px 0;color:#475569;font-size:13px}
    .mobile-only{display:none}
    .reveal{opacity:0;transform:translateY(16px);transition:.55s ease}
    .reveal.in{opacity:1;transform:none}
    @media (max-width: 1100px){
      .hero-grid,.grid-3,.grid-4,.workflow,.pricing,.reviews,.articles,.contact-strip,.footer-grid,.two-col{grid-template-columns:1fr}
      .step:after{display:none}
      .hero-points,.stat-grid{grid-template-columns:1fr 1fr}
      .nav-links{display:none}
      .menu-btn{display:inline-grid;place-items:center}
      .nav.open .nav-links{display:flex;position:absolute;left:16px;right:16px;top:72px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;flex-direction:column;align-items:flex-start;box-shadow:var(--shadow)}
      .nav.open .nav-cta{display:flex;flex-direction:column;align-items:stretch;width:100%}
      .nav.open .nav-links a{width:100%}
      .mobile-only{display:block}
    }
    @media (max-width: 720px){
      .container{width:min(var(--max),calc(100% - 22px))}
      .hero-copy,.card,.form,.panel-card{padding:18px}
      h1{font-size:30px}
      .hero-actions,.form-actions{flex-direction:column;align-items:stretch}
      .btn{width:100%}
      .hero-points,.stat-grid,.form-grid{grid-template-columns:1fr}
      .time-item{grid-template-columns:1fr}
      .qrcode{flex-direction:column;align-items:flex-start}
    }