:root{
      --bg:#f5f7fb;
      --bg2:#eef3ff;
      --card:#ffffff;
      --text:#162133;
      --muted:#5d6a7e;
      --line:#dbe3f0;
      --brand:#5b5cf6;
      --brand2:#13c2c2;
      --accent:#ff6a3d;
      --shadow:0 16px 40px rgba(23,35,71,.10);
      --radius:22px;
      --radius2:16px;
      --max: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(91,92,246,.12), transparent 32%),
        radial-gradient(circle at top right, rgba(19,194,194,.12), transparent 28%),
        linear-gradient(180deg,#fbfcff 0%,#f5f7fb 48%,#f7f9fd 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,main,footer{position:relative}
    .topbar{
      position:sticky;top:0;z-index:40;
      backdrop-filter:blur(14px);
      background:rgba(247,249,253,.84);
      border-bottom:1px solid rgba(219,227,240,.8);
    }
    .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;box-shadow:0 6px 18px rgba(23,35,71,.08)}
    .brand .txt{min-width:0}
    .brand strong{display:block;font-size:18px;letter-spacing:.5px}
    .brand span{display:block;font-size:12px;color:var(--muted);margin-top:2px}
    .navlinks{display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-end;gap:10px}
    .navlinks a{font-size:13px;color:var(--muted);padding:8px 11px;border-radius:999px}
    .navlinks a:hover,.navlinks a:focus{background:#fff;color:var(--text);box-shadow:0 8px 20px rgba(23,35,71,.08)}
    .cta{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:12px 18px;border-radius:999px;
      background:linear-gradient(135deg,var(--brand),#7f5bff 55%,var(--brand2));
      color:#fff;font-weight:700;box-shadow:0 14px 28px rgba(91,92,246,.24);
      border:0;cursor:pointer;
      transition:transform .22s ease, box-shadow .22s ease, opacity .22s ease;
    }
    .cta:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(91,92,246,.28)}
    .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{padding:36px 0 14px}
    .hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:18px;align-items:stretch}
    .hero-main,.hero-side,.section-card,.quote-card,.form-card,.faq-card,.news-card,.panel{
      background:linear-gradient(180deg,rgba(255,255,255,.98),rgba(255,255,255,.94));
      border:1px solid rgba(219,227,240,.9);border-radius:var(--radius);box-shadow:var(--shadow)
    }
    .hero-main{padding:30px;position:relative;overflow:hidden}
    .hero-main:before,.hero-main:after{
      content:"";position:absolute;border-radius:50%;filter:blur(10px);pointer-events:none
    }
    .hero-main:before{width:180px;height:180px;background:rgba(91,92,246,.14);right:-40px;top:-34px}
    .hero-main:after{width:120px;height:120px;background:rgba(19,194,194,.16);left:38%;bottom:-40px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:rgba(91,92,246,.08);color:#4c55d8;font-size:12px;font-weight:700}
    h1{margin:16px 0 12px;font-size:clamp(30px,5vw,52px);line-height:1.08;letter-spacing:-.02em}
    .lead{margin:0;color:var(--muted);font-size:16px;line-height:1.8;max-width:56ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:24px}
    .stat{padding:16px;border-radius:18px;background:linear-gradient(180deg,#fff,#f7f9ff);border:1px solid var(--line)}
    .stat strong{display:block;font-size:22px}
    .stat span{display:block;color:var(--muted);font-size:12px;margin-top:6px;line-height:1.5}
    .hero-side{padding:22px;display:grid;gap:14px;align-content:start}
    .side-mini{padding:16px;border-radius:18px;background:linear-gradient(135deg,#f7f8ff,#f4fffd);border:1px solid #e3ebff}
    .side-mini h3{margin:0 0 8px;font-size:16px}
    .side-mini p,.side-mini li,.small{margin:0;color:var(--muted);font-size:13px;line-height:1.7}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:12px;color:#40506a}
    section{padding:14px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:14px;margin-bottom:14px}
    .section-head h2{margin:0;font-size:24px}
    .section-head p{margin:0;color:var(--muted);font-size:14px;line-height:1.7;max-width:64ch}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .card{padding:20px;border-radius:20px;background:var(--card);border:1px solid var(--line);box-shadow:0 10px 24px rgba(19,35,66,.05);transition:transform .22s ease, box-shadow .22s ease}
    .card:hover{transform:translateY(-3px);box-shadow:0 18px 32px rgba(19,35,66,.09)}
    .card h3{margin:0 0 10px;font-size:18px}
    .card p{margin:0;color:var(--muted);line-height:1.8;font-size:14px}
    .icon{
      width:44px;height:44px;border-radius:14px;display:grid;place-items:center;margin-bottom:12px;
      background:linear-gradient(135deg,rgba(91,92,246,.12),rgba(19,194,194,.12));color:#3040cf;font-weight:800
    }
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:18px;border-radius:20px;background:linear-gradient(180deg,#fff,#f8fbff);border:1px solid var(--line);position:relative}
    .step:after{content:"";position:absolute;right:16px;top:16px;width:12px;height:12px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2))}
    .step b{display:block;font-size:13px;color:#4b57d0;margin-bottom:10px}
    .step h3{margin:0 0 8px}
    .step p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
    .table-wrap{overflow:auto;border-radius:20px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:14px 16px;text-align:left;border-bottom:1px solid #e9eef7;font-size:14px;vertical-align:top}
    th{background:#f7f9ff;color:#24314c}
    tr:hover td{background:#fbfcff}
    .badge{display:inline-flex;align-items:center;padding:7px 10px;border-radius:999px;background:rgba(91,92,246,.1);color:#4751d8;font-size:12px;font-weight:700}
    .compare{display:grid;grid-template-columns:1.15fr .85fr;gap:14px}
    .rating{padding:22px;background:linear-gradient(135deg,#111b34,#1f2b57 55%,#2a3e8e);color:#fff;border-radius:22px}
    .rating .big{font-size:40px;font-weight:800;margin:8px 0}
    .rating p{color:rgba(255,255,255,.84);line-height:1.75}
    .rating ul{padding-left:18px;margin:14px 0 0}
    .rating li{margin:8px 0;color:rgba(255,255,255,.9)}
    .panel{padding:20px}
    .panel ul{margin:0;padding-left:18px;color:var(--muted);line-height:1.8}
    details{background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px 16px}
    details + details{margin-top:12px}
    summary{cursor:pointer;font-weight:700;list-style:none}
    summary::-webkit-details-marker{display:none}
    details p{margin:10px 0 0;color:var(--muted);line-height:1.8;font-size:14px}
    .review{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start}
    .avatar{width:48px;height:48px;border-radius:16px;background:linear-gradient(135deg,#eff2ff,#e8fbff);display:grid;place-items:center;font-weight:800;color:#4152d8}
    .review strong{display:block;margin-bottom:6px}
    .review em{font-style:normal;color:#7c8798;font-size:12px}
    .gallery{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .gallery img,.article img,.contact-media img{width:100%;border-radius:18px;border:1px solid var(--line);background:#fff;object-fit:cover}
    .article-list{display:grid;gap:12px}
    .article{display:grid;grid-template-columns:120px 1fr;gap:14px;padding:14px;border-radius:18px;border:1px solid var(--line);background:#fff}
    .article h3{margin:0 0 6px;font-size:16px}
    .article p{margin:0;color:var(--muted);font-size:13px;line-height:1.7}
    .form-card{padding:22px}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    label{display:block;font-size:13px;color:#354257;margin-bottom:8px;font-weight:700}
    input,select,textarea{
      width:100%;padding:13px 14px;border-radius:14px;border:1px solid var(--line);background:#fff;color:var(--text);
      outline:none;font:inherit
    }
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:rgba(91,92,246,.55);box-shadow:0 0 0 4px rgba(91,92,246,.08)}
    .form-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:14px}
    .helpbox{padding:20px;border-radius:20px;background:linear-gradient(135deg,#f8fbff,#f2f9ff);border:1px solid #dbe6ff}
    .helpbox h3{margin:0 0 10px}
    .helpbox p{margin:0;color:var(--muted);line-height:1.8}
    .footer{
      margin-top:18px;padding:24px 0 30px;border-top:1px solid rgba(219,227,240,.9);background:rgba(248,250,253,.92)
    }
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:14px}
    .footer a{color:#33415e}
    .footer a:hover{text-decoration:underline}
    .copyright{margin-top:16px;color:#6d7787;font-size:13px;line-height:1.7}
    .float-actions{
      position:fixed;right:16px;bottom:16px;z-index:50;display:grid;gap:10px
    }
    .float-actions a,.float-actions button{
      width:48px;height:48px;border-radius:16px;border:1px solid rgba(219,227,240,.95);background:#fff;box-shadow:0 12px 24px rgba(19,35,66,.12);
      display:grid;place-items:center;cursor:pointer;color:#33415e
    }
    .mobile-toggle{display:none}
    .mobile-only{display:none}
    .reveal{opacity:0;transform:translateY(14px);transition:opacity .55s ease, transform .55s ease}
    .reveal.in{opacity:1;transform:none}
    .contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:14px}
    .mini-links{display:flex;flex-wrap:wrap;gap:10px}
    .mini-links a{padding:9px 12px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:13px}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-2,.steps,.compare,.contact-grid,.footer-grid,.gallery{grid-template-columns:1fr}
      .stats{grid-template-columns:repeat(2,1fr)}
      .navlinks{display:none}
      .mobile-toggle{display:inline-flex}
      .mobile-only{display:block}
      .nav.open .navlinks{
        display:flex;position:absolute;left:16px;right:16px;top:72px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)
      }
      .nav{position:relative}
      .nav.open{padding-bottom:64px}
      .hero{padding-top:18px}
      .article{grid-template-columns:1fr}
      .form-grid{grid-template-columns:1fr}
    }
    @media (max-width: 640px){
      .container{width:min(var(--max), calc(100% - 24px))}
      h1{font-size:clamp(28px,8vw,40px)}
      .hero-main,.hero-side,.card,.panel,.form-card,.helpbox,.rating{padding:18px}
      .stats{grid-template-columns:1fr}
      .hero-actions,.form-actions{flex-direction:column;align-items:stretch}
      .cta,.ghost{width:100%}
      .section-head{align-items:flex-start;flex-direction:column}
      .float-actions{right:12px;bottom:12px}
    }