:root{
      --bg:#f5f8ff;
      --bg2:#eef5ff;
      --card:#ffffff;
      --text:#172033;
      --muted:#5d6b87;
      --line:#dbe4f3;
      --brand:#2d5bff;
      --brand2:#7c4dff;
      --accent:#20c997;
      --warm:#ffb84d;
      --shadow:0 18px 45px rgba(29,59,138,.10);
      --radius:20px;
      --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(--text);
      background:
        radial-gradient(1200px 500px at 15% -10%, rgba(45,91,255,.14), transparent 60%),
        radial-gradient(900px 420px at 95% 10%, rgba(124,77,255,.12), transparent 52%),
        linear-gradient(180deg, #f8fbff 0%, #f5f8ff 32%, #fbfcff 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--max), calc(100% - 32px)); margin:0 auto}
    header{
      position:sticky; top:0; z-index:50;
      backdrop-filter: blur(16px);
      background: rgba(245,248,255,.82);
      border-bottom:1px solid rgba(219,228,243,.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}
    .brand h1{font-size:16px;line-height:1.1;margin:0}
    .brand small{display:block;color:var(--muted);font-size:12px;margin-top:3px}
    .menu-btn{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;color:var(--text)}
    nav ul{display:flex;flex-wrap:wrap;gap:14px;list-style:none;margin:0;padding:0;align-items:center}
    nav a{font-size:14px;color:#30415f;padding:8px 10px;border-radius:10px;transition:.2s}
    nav a:hover,nav a:focus{background:#eaf1ff;color:#1d3fb8}
    .cta{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 16px;border-radius:999px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;font-weight:700;box-shadow:0 14px 28px rgba(45,91,255,.22);transition:.2s}
    .cta:hover{transform:translateY(-1px);box-shadow:0 18px 34px rgba(45,91,255,.26)}
    .top-actions{display:flex;align-items:center;gap:10px}
    main{overflow:hidden}
    section{padding:56px 0}
    .hero{padding:34px 0 46px}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px;align-items:stretch}
    .hero-card,.panel,.card,.faq-item,.review,.case,.article,.table-wrap,.form-card{background:var(--card);border:1px solid rgba(219,228,243,.88);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-card{padding:34px;position:relative;overflow:hidden}
    .hero-card:before,.hero-card:after{content:"";position:absolute;border-radius:50%;pointer-events:none}
    .hero-card:before{width:240px;height:240px;right:-90px;top:-90px;background:radial-gradient(circle, rgba(32,201,151,.18), transparent 65%)}
    .hero-card:after{width:280px;height:280px;left:-120px;bottom:-120px;background:radial-gradient(circle, rgba(45,91,255,.16), transparent 66%)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#eef4ff;color:#2443a3;font-weight:700;font-size:13px}
    .hero h2{font-size:clamp(34px,5vw,56px);line-height:1.06;margin:16px 0 14px;letter-spacing:-.03em}
    .hero p{font-size:16px;line-height:1.8;color:var(--muted);margin:0}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .ghost{display:inline-flex;align-items:center;justify-content:center;padding:11px 16px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--text);font-weight:600}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}
    .mini{padding:14px;border-radius:16px;background:linear-gradient(180deg,#f7faff,#fff);border:1px solid var(--line)}
    .mini b{display:block;font-size:18px;margin-bottom:4px}
    .mini span{color:var(--muted);font-size:13px;line-height:1.45}
    .side-card{padding:20px}
    .side-card .panel{padding:18px;border-radius:18px;box-shadow:none}
    .side-card h3{margin:0 0 12px;font-size:20px}
    .stat-list{display:grid;gap:12px}
    .stat{padding:14px 15px;border-radius:16px;background:linear-gradient(135deg,#f7faff,#ffffff);border:1px solid var(--line)}
    .stat .k{font-size:12px;color:var(--muted);margin-bottom:6px}
    .stat .v{font-weight:800;font-size:22px;color:#17306d}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:18px}
    .section-head h2{margin:0;font-size:28px}
    .section-head p{margin:0;color:var(--muted);max-width:720px;line-height:1.7}
    .card{padding:20px}
    .card h3,.panel h3,.article h3,.case h3,.review h3{margin:0 0 10px;font-size:18px}
    .card p,.panel p,.article p,.case p,.review p{margin:0;color:var(--muted);line-height:1.75}
    .badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;background:#eef6ff;color:#2450c8;font-size:12px;font-weight:700;margin-bottom:12px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:10px 12px;border:1px solid var(--line);background:#fff;border-radius:999px;font-size:13px;color:#314061}
    .flow{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .step{padding:18px;border-radius:18px;background:linear-gradient(180deg,#fff,#f8fbff);border:1px solid var(--line);position:relative}
    .step .num{width:34px;height:34px;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;display:grid;place-items:center;font-weight:800;margin-bottom:12px}
    .compare{width:100%;border-collapse:separate;border-spacing:0;overflow:hidden}
    .compare th,.compare td{padding:14px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
    .compare th{background:#f3f7ff;color:#28407a;font-size:14px}
    .compare td{font-size:14px;color:#2f3c57}
    .scorebox{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px;margin-top:16px}
    .score{padding:16px;border-radius:18px;background:linear-gradient(135deg,#f5f8ff,#ffffff);border:1px solid var(--line)}
    .score strong{font-size:30px;display:block;line-height:1.1}
    .faq details{background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px 16px}
    .faq summary{cursor:pointer;font-weight:700;list-style:none}
    .faq summary::-webkit-details-marker{display:none}
    .faq details p{margin-top:10px}
    .faq-list{display:grid;gap:12px}
    .reviews,.cases,.articles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review,.case,.article{padding:20px}
    .avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,#dbe9ff,#eef6ff);display:grid;place-items:center;font-weight:800;color:#2b4ea8;margin-bottom:12px}
    .timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .time{padding:18px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .time b{display:block;margin-bottom:8px}
    .form-card{padding:22px}
    form{display:grid;gap:14px}
    .fields{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    label{font-size:13px;font-weight:700;color:#2b3956;display:block;margin-bottom:6px}
    input,select,textarea{
      width:100%;padding:12px 14px;border:1px solid #cfd8ea;border-radius:14px;background:#fff;color:var(--text);
      font:inherit;outline:none;transition:.2s
    }
    input:focus,select:focus,textarea:focus{border-color:#7aa3ff;box-shadow:0 0 0 4px rgba(45,91,255,.10)}
    textarea{min-height:120px;resize:vertical}
    .submit{border:0;cursor:pointer}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    footer{padding:28px 0 34px;border-top:1px solid var(--line);background:#f2f6ff;color:#22304d}
    footer a{color:#213d8a}
    .footer-top{display:grid;grid-template-columns:1.1fr .9fr .8fr;gap:16px;align-items:start}
    .footer-box{padding:18px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px
    }
    .float-btn{width:52px;height:52px;border-radius:16px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;display:grid;place-items:center;box-shadow:0 16px 30px rgba(45,91,255,.26)}
    .float-btn.secondary{background:#fff;color:#2443a3;border:1px solid var(--line)}
    .home-link{font-weight:700}
    .logo-row{display:flex;gap:14px;align-items:center}
    .logo-row img{border-radius:14px}
    .img-card{display:grid;gap:10px}
    .img-card img{width:100%;border-radius:18px;border:1px solid var(--line)}
    .scroll-x{overflow:auto}
    .muted{color:var(--muted)}
    .map-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
    .map-item{padding:14px 16px;border-radius:16px;border:1px solid var(--line);background:#fff}
    .map-item b{display:block;margin-bottom:6px}
    .accordion{display:grid;gap:12px}
    .article .meta{font-size:12px;color:#6a7790;margin-bottom:10px}
    .hr{height:1px;background:var(--line);margin:18px 0}
    .highlight{color:#183da6;font-weight:800}
    @media (max-width: 1024px){
      .hero-grid,.grid-4,.grid-3,.grid-2,.flow,.timeline,.reviews,.cases,.articles,.footer-top,.scorebox,.map-list{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 768px){
      .menu-btn{display:inline-flex}
      nav{display:none;position:absolute;left:16px;right:16px;top:66px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:10px;box-shadow:var(--shadow)}
      nav.open{display:block}
      nav ul{flex-direction:column;align-items:stretch}
      nav a{display:block}
      .top-actions .ghost{display:none}
      .hero{padding-top:18px}
      .hero-card{padding:24px}
      .hero-points,.fields,.grid-4,.grid-3,.grid-2,.hero-grid,.flow,.timeline,.reviews,.cases,.articles,.footer-top,.scorebox,.map-list{grid-template-columns:1fr}
      section{padding:40px 0}
      .section-head{flex-direction:column;align-items:flex-start}
      .compare{min-width:860px}
      .scroll-x{overflow-x:auto}
    }
    .reveal{opacity:0;transform:translateY(16px);transition:.6s ease}
    .reveal.in{opacity:1;transform:none}
    .pulse{animation:pulse 3.8s ease-in-out infinite}
    @keyframes pulse{0%,100%{transform:translateY(0)}50%{transform:translateY(-3px)}}