:root{
      --bg:#f6f8fc;
      --panel:#ffffff;
      --panel-2:#f3f7ff;
      --text:#1c2430;
      --muted:#5e6a7d;
      --line:#d8e1ef;
      --brand:#1f6bff;
      --brand-2:#8f5cff;
      --accent:#00c2ff;
      --gold:#ffb340;
      --shadow:0 18px 50px rgba(33, 56, 103, .10);
      --shadow-soft:0 10px 30px rgba(33, 56, 103, .08);
      --radius:18px;
      --radius-lg:26px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 10% 10%, rgba(31,107,255,.10), transparent 28%),
        radial-gradient(circle at 90% 5%, rgba(143,92,255,.10), transparent 24%),
        linear-gradient(180deg, #f9fbff 0%, #f5f8fd 24%, #f7f9fc 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    header{position:sticky;top:0;z-index:50;background:rgba(249,251,255,.86);backdrop-filter:blur(16px);border-bottom:1px solid rgba(216,225,239,.8)}
    .nav{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:76px}
    .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:4px;box-shadow:var(--shadow-soft)}
    .brand strong{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted);margin-top:3px}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;color:var(--text);border-radius:14px;padding:10px 12px;font-size:14px}
    .nav-links{display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-end;gap:8px}
    .nav-links a{padding:9px 12px;border-radius:999px;color:#334155;font-size:14px}
    .nav-links a:hover,.nav-links a.active{background:rgba(31,107,255,.10);color:var(--brand)}
    .nav-cta{display:flex;gap:10px;align-items:center}
    .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:.25s ease;cursor:pointer}
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 12px 26px rgba(31,107,255,.22)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(31,107,255,.26)}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-ghost:hover{transform:translateY(-2px);border-color:#b8c8e3;box-shadow:var(--shadow-soft)}
    main{padding:24px 0 10px}
    section{padding:22px 0}
    .hero{padding-top:14px}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px;align-items:stretch}
    .hero-copy,.hero-side,.panel,.card,.faq-item,.review-card,.article-card,.timeline-item,.form-card,.compare-card{background:rgba(255,255,255,.88);border:1px solid rgba(216,225,239,.9);border-radius:var(--radius-lg);box-shadow:var(--shadow)}
    .hero-copy{padding:28px;position:relative;overflow:hidden}
    .hero-copy:before,.hero-side:before{content:"";position:absolute;inset:auto -40px -70px auto;width:180px;height:180px;background:radial-gradient(circle, rgba(31,107,255,.18), transparent 65%)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--brand);background:rgba(31,107,255,.08);border:1px solid rgba(31,107,255,.12);padding:7px 12px;border-radius:999px}
    h1{font-size:clamp(30px,4vw,48px);line-height:1.08;margin:16px 0 14px;letter-spacing:-.02em}
    .hero-copy p{font-size:16px;line-height:1.8;color:var(--muted);margin:0 0 18px;max-width:58ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:20px 0 22px}
    .hero-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
    .mini{padding:14px;border-radius:16px;background:linear-gradient(180deg,#f8fbff,#eef4ff);border:1px solid #dce6f6}
    .mini b{display:block;font-size:20px;margin-bottom:4px;color:#1e3357}
    .mini span{font-size:13px;color:var(--muted);line-height:1.5}
    .hero-side{padding:22px;display:flex;flex-direction:column;gap:14px;justify-content:space-between;position:relative;overflow:hidden}
    .side-box{padding:16px;border-radius:18px;background:linear-gradient(180deg,#ffffff, #f3f7ff);border:1px solid #dbe5f4}
    .side-box h3{margin:0 0 8px;font-size:18px}
    .chip-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .chip{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid #d9e3f1;color:#32435b;font-size:13px;box-shadow:0 6px 18px rgba(31,107,255,.06)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:14px}
    .section-head h2{font-size:26px;line-height:1.1;margin:0}
    .section-head p{margin:0;color:var(--muted);max-width:62ch}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .card{padding:18px}
    .card h3,.panel h3{margin:10px 0 8px;font-size:18px}
    .card p,.panel p,.review-card p,.article-card p{margin:0;color:var(--muted);line-height:1.75}
    .icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(31,107,255,.12),rgba(143,92,255,.12));color:var(--brand);font-size:20px}
    .panel{padding:20px}
    .metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .metric{padding:18px;border-radius:18px;background:linear-gradient(180deg,#ffffff,#f5f8ff);border:1px solid #dbe4f2}
    .metric strong{display:block;font-size:28px;color:#142033;line-height:1}
    .metric span{display:block;margin-top:8px;color:var(--muted);font-size:13px;line-height:1.5}
    .table-wrap{overflow:auto;border-radius:18px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:820px}
    th,td{padding:14px 16px;text-align:left;border-bottom:1px solid #e6edf7;vertical-align:top}
    th{background:#f4f8ff;color:#22324b;font-size:14px}
    td{color:#344156;font-size:14px;line-height:1.7}
    .tag-row{display:flex;flex-wrap:wrap;gap:10px}
    .tag-row span{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid #d8e2f0;color:#32435b;font-size:13px}
    .timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .timeline-item{padding:18px;position:relative}
    .timeline-item .step{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;font-weight:800;margin-bottom:12px}
    .review-card{padding:18px}
    .stars{color:#ffb340;font-size:16px;letter-spacing:2px}
    .review-meta{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:10px}
    .review-card small{color:var(--muted)}
    .article-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .article-card{padding:18px;display:flex;gap:14px;align-items:flex-start}
    .article-card .date{min-width:76px;padding:10px 12px;border-radius:14px;background:#f1f6ff;color:#2952a3;text-align:center;font-weight:700}
    .form-card{padding:20px}
    form{display:grid;gap:14px}
    .form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    label{display:block;font-size:14px;color:#334155;margin-bottom:8px;font-weight:600}
    input,select,textarea{
      width:100%;border:1px solid #cfd9e8;background:#fff;border-radius:14px;padding:12px 14px;
      font:inherit;color:var(--text);outline:none;transition:.2s ease
    }
    input:focus,select:focus,textarea:focus{border-color:#7da8ff;box-shadow:0 0 0 4px rgba(31,107,255,.09)}
    textarea{min-height:120px;resize:vertical}
    .faq-list{display:grid;gap:12px}
    .faq-item{overflow:hidden}
    .faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:18px;background:transparent;border:0;color:var(--text);font:inherit;font-weight:700;text-align:left;cursor:pointer}
    .faq-q span{font-size:16px}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 18px}
    .faq-item.open .faq-a{padding:0 18px 18px;max-height:180px}
    .faq-a p{margin:0;color:var(--muted);line-height:1.75}
    .footer-top{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}
    footer{margin-top:18px;padding:24px 0 20px;background:#12233e;color:#dbe6f6}
    footer .container{width:min(var(--container), calc(100% - 32px))}
    footer a{color:#ffffff}
    .foot-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:20px;padding:18px}
    .foot-links{display:flex;flex-wrap:wrap;gap:10px}
    .foot-links a{padding:9px 12px;border-radius:999px;background:rgba(255,255,255,.08)}
    .copyright{margin-top:14px;color:#b7c6db;font-size:13px;line-height:1.8}
    .floating{position:fixed;right:16px;bottom:16px;z-index:60;display:flex;flex-direction:column;gap:10px}
    .floating a,.floating button{width:52px;height:52px;border-radius:16px;border:0;display:grid;place-items:center;box-shadow:var(--shadow);cursor:pointer}
    .floating .kf{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff}
    .floating .top{background:#fff;color:var(--text);border:1px solid var(--line)}
    .float-card{position:fixed;right:16px;bottom:78px;z-index:59;width:min(320px, calc(100vw - 32px));background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:14px;display:none}
    .float-card.open{display:block}
    .float-card h3{margin:0 0 10px}
    .float-card .qr{border-radius:16px;border:1px solid var(--line);overflow:hidden;margin-bottom:10px}
    .reveal{opacity:0;transform:translateY(12px);transition:.55s ease}
    .reveal.show{opacity:1;transform:translateY(0)}
    .subtle{color:var(--muted)}
    .center{text-align:center}
    .section-note{font-size:14px;color:var(--muted);margin-top:6px}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .price-box{padding:18px;border-radius:18px;background:linear-gradient(180deg,#ffffff,#f6f9ff);border:1px solid #dbe4f2}
    .price-box strong{display:block;font-size:24px;color:#15315c;margin:8px 0}
    .divider{height:1px;background:#e5edf8;margin:12px 0}
    .logo-line{display:flex;align-items:center;gap:12px}
    .logo-line img{width:60px;height:60px;object-fit:contain;background:#fff;border-radius:16px;border:1px solid var(--line);padding:6px}
    .hero-side .logo-line img{width:68px;height:68px}
    .mobile-only{display:none}
    @media (max-width: 1024px){
      .hero-grid,.grid-4,.grid-3,.metrics,.timeline,.footer-top,.footer-top,.split{grid-template-columns:1fr}
      .article-list{grid-template-columns:1fr}
      .hero-points{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-toggle{display:inline-flex}
      .nav.open .nav-links{display:flex;position:absolute;left:16px;right:16px;top:76px;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:var(--shadow)}
      .nav.open .nav-cta{display:none}
      header{position:sticky}
      .form-grid{grid-template-columns:1fr}
      .mobile-only{display:block}
    }
    @media (max-width: 640px){
      .container{width:min(var(--container), calc(100% - 24px))}
      .hero-copy,.hero-side,.card,.panel,.form-card,.review-card,.article-card,.timeline-item,.compare-card{padding:16px}
      .nav{min-height:70px}
      h1{font-size:30px}
      .section-head{flex-direction:column;align-items:flex-start}
      .hero-actions{flex-direction:column}
      .btn{width:100%}
      .floating{right:12px;bottom:12px}
      .float-card{right:12px;bottom:74px}
    }