:root{
      --bg:#f6f8fc;
      --surface:#ffffff;
      --surface-2:#fff7ef;
      --line:#dbe3f0;
      --text:#1d2a3b;
      --muted:#5d6b7f;
      --brand:#ff4d6d;
      --brand-2:#5b7cfa;
      --accent:#12b3a8;
      --shadow:0 14px 40px rgba(27,40,61,.08);
      --shadow-2:0 10px 28px rgba(255,77,109,.14);
      --radius:20px;
      --container:1180px;
    }
    *{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",sans-serif;background:
      radial-gradient(circle at top left, rgba(91,124,250,.12), transparent 28%),
      radial-gradient(circle at top right, rgba(255,77,109,.12), transparent 24%),
      linear-gradient(180deg,#fbfcff 0%,#f5f7fc 100%);
      color:var(--text);line-height:1.65}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    .container{width:min(var(--container),calc(100% - 32px));margin:0 auto}
    header{position:sticky;top:0;z-index:40;background:rgba(246,248,252,.82);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid rgba(219,227,240,.7)}
    .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 .name{font-weight:800;font-size:18px;letter-spacing:.3px}
    .brand .sub{font-size:12px;color:var(--muted)}
    .brand img{width:42px;height:42px;object-fit:contain;border-radius:12px;background:#fff;border:1px solid var(--line);padding:4px;box-shadow:0 6px 16px rgba(0,0,0,.05)}
    .menu{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .menu a{font-size:14px;color:#324155;font-weight:600;opacity:.9}
    .menu a:hover,.menu a:focus{color:var(--brand)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn,.btn-outline{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:12px 18px;font-weight:700;border:1px solid transparent;transition:.25s ease;cursor:pointer;white-space:nowrap}
    .btn{background:linear-gradient(135deg,var(--brand),#ff8b5e);color:#fff;box-shadow:var(--shadow-2)}
    .btn:hover{transform:translateY(-2px);filter:saturate(1.05)}
    .btn-outline{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-outline:hover{transform:translateY(-2px);border-color:#b9c7df;box-shadow:var(--shadow)}
    .nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;color:var(--text)}
    main{display:block}
    section{padding:72px 0}
    .hero{padding:38px 0 64px;position:relative;overflow:hidden}
    .hero::before,.hero::after{content:"";position:absolute;border-radius:999px;filter:blur(2px);pointer-events:none}
    .hero::before{width:220px;height:220px;background:rgba(255,77,109,.12);right:-56px;top:20px}
    .hero::after{width:280px;height:280px;background:rgba(91,124,250,.12);left:-90px;bottom:-80px}
    .hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:24px;align-items:stretch}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;background:rgba(255,77,109,.1);color:#d63b5a;font-size:13px;font-weight:700;margin-bottom:16px}
    h1{margin:0 0 16px;font-size:clamp(34px,5vw,56px);line-height:1.08;letter-spacing:-.8px}
    .lead{font-size:17px;color:var(--muted);max-width:42em;margin:0 0 24px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:22px}
    .hero-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
    .mini-card{background:rgba(255,255,255,.78);border:1px solid rgba(219,227,240,.85);border-radius:18px;padding:14px;box-shadow:var(--shadow)}
    .mini-card strong{display:block;font-size:18px;margin-bottom:4px}
    .mini-card span{font-size:13px;color:var(--muted)}
    .hero-panel{background:linear-gradient(180deg,rgba(255,255,255,.9),rgba(255,247,239,.9));border:1px solid rgba(219,227,240,.9);border-radius:28px;padding:24px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:16px;position:relative}
    .hero-panel .badge-row{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:#31425a;font-weight:600}
    .hero-panel .metric{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
    .metric-box{background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px}
    .metric-box b{display:block;font-size:20px;margin-bottom:4px;color:#142135}
    .metric-box small{color:var(--muted)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:24px}
    .section-head h2{margin:0;font-size:clamp(24px,3vw,36px);line-height:1.15}
    .section-head p{margin:0;color:var(--muted);max-width:52ch}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .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:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);transition:.25s ease}
    .card:hover{transform:translateY(-4px);box-shadow:0 18px 44px rgba(27,40,61,.12)}
    .card h3{margin:0 0 10px;font-size:18px}
    .card p{margin:0;color:var(--muted)}
    .icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(255,77,109,.14),rgba(91,124,250,.14));color:#243552;font-weight:800;margin-bottom:14px}
    .two-col{display:grid;grid-template-columns:1.05fr .95fr;gap:18px;align-items:start}
    .list{display:grid;gap:12px}
    .list li{list-style:none;display:flex;gap:10px;align-items:flex-start;color:#314155}
    .list li::before{content:"";width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-2));margin-top:8px;flex:none}
    .table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:820px}
    th,td{padding:16px 14px;text-align:left;border-bottom:1px solid #edf1f7;vertical-align:top}
    th{background:#f8fbff;font-size:14px}
    td{color:#334255}
    .rating{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:rgba(18,179,168,.1);color:#0a776f;font-weight:700}
    .steps{counter-reset:step}
    .step{position:relative;padding-left:54px}
    .step::before{counter-increment:step;content:counter(step);position:absolute;left:0;top:0;width:36px;height:36px;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;display:grid;place-items:center;font-weight:800}
    .compare{background:linear-gradient(180deg,#fff, #fbfcff)}
    .faq details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px 18px;box-shadow:0 8px 24px rgba(27,40,61,.05)}
    .faq details+details{margin-top:12px}
    .faq summary{cursor:pointer;font-weight:700;color:#22324a}
    .faq p{margin:12px 0 0;color:var(--muted)}
    .reviews .card{display:flex;flex-direction:column;gap:12px}
    .avatar{width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,rgba(255,77,109,.2),rgba(91,124,250,.2));display:grid;place-items:center;font-weight:800;color:#243552}
    .review-top{display:flex;align-items:center;gap:12px}
    .stars{color:#ffb400;letter-spacing:2px}
    .article-list{display:grid;gap:12px}
    .article-item{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;padding:16px 18px;border-radius:16px;background:#fff;border:1px solid var(--line)}
    .article-item span{color:var(--muted);font-size:13px;white-space:nowrap}
    .form{display:grid;gap:14px}
    .field{display:grid;gap:8px}
    .field label{font-weight:700;font-size:14px;color:#22324a}
    input,select,textarea{width:100%;padding:13px 14px;border-radius:14px;border:1px solid #d9e1ee;background:#fff;color:var(--text);font:inherit;outline:none;transition:.2s ease}
    input:focus,select:focus,textarea:focus{border-color:#9cb0f2;box-shadow:0 0 0 4px rgba(91,124,250,.12)}
    textarea{min-height:126px;resize:vertical}
    .footer-top{padding-top:24px;border-top:1px solid rgba(219,227,240,.9)}
    footer{background:#fff;border-top:1px solid var(--line);color:#2b394c}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px;padding:26px 0}
    .footer-grid a{color:#2d4c7a}
    .footer-grid a:hover{color:var(--brand)}
    .contact-box{display:grid;gap:12px}
    .qrcode{width:168px;border:1px solid var(--line);border-radius:18px;padding:10px;background:#fff}
    .sticky-tools{position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px}
    .float-btn{width:48px;height:48px;border-radius:16px;background:linear-gradient(135deg,var(--brand),#ff8b5e);color:#fff;display:grid;place-items:center;box-shadow:var(--shadow-2);font-size:18px}
    .float-btn.secondary{background:#fff;color:var(--text);border:1px solid var(--line)}
    .grid-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .cloud{padding:10px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);box-shadow:0 6px 18px rgba(27,40,61,.05);font-size:14px;color:#314155}
    .price-box{background:linear-gradient(180deg,#fff, #fff8f4);border:1px solid rgba(255,77,109,.14)}
    .timeline{display:grid;gap:14px}
    .timeline-item{padding:16px 18px;border-left:3px solid rgba(255,77,109,.4);background:#fff;border-radius:0 16px 16px 0;border:1px solid var(--line);border-left-width:4px}
    .muted{color:var(--muted)}
    .mobile-only{display:none}
    @media (max-width: 980px){
      .hero-grid,.two-col,.grid-4,.grid-3,.grid-2,.footer-grid{grid-template-columns:1fr}
      .section-head{align-items:start;flex-direction:column}
      .menu{display:none;position:absolute;left:16px;right:16px;top:68px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:var(--shadow);flex-direction:column;align-items:flex-start}
      .menu.open{display:flex}
      .nav-toggle{display:inline-flex}
      .nav-actions .btn-outline{display:none}
      .hero-points{grid-template-columns:1fr}
      .mobile-only{display:block}
      table{min-width:720px}
    }
    @media (max-width: 560px){
      section{padding:58px 0}
      .hero{padding-top:26px}
      .hero-actions .btn,.hero-actions .btn-outline{width:100%}
      .card,.hero-panel{padding:18px}
      .article-item{flex-direction:column}
      .sticky-tools{right:12px;bottom:12px}
      .qrcode{width:140px}
    }
    .reveal{opacity:0;transform:translateY(18px);transition:.6s ease}
    .reveal.show{opacity:1;transform:none}