:root{
      --bg:#f6f8fc;
      --panel:#ffffff;
      --panel-2:#f2f5fb;
      --text:#162133;
      --muted:#5f6b7f;
      --line:#dce3ef;
      --primary:#4a6cf7;
      --primary-2:#8b5cf6;
      --accent:#ff7a59;
      --accent-2:#22c55e;
      --shadow:0 18px 50px rgba(28,44,85,.10);
      --shadow-soft:0 10px 24px rgba(28,44,85,.08);
      --radius:20px;
      --radius-sm:14px;
      --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", Arial, sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(74,108,247,.12), transparent 28%),
        radial-gradient(circle at top right, rgba(139,92,246,.10), transparent 24%),
        linear-gradient(180deg,#fbfcff 0%, #f6f8fc 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:50;
      backdrop-filter: blur(12px);
      background: rgba(246,248,252,.82);
      border-bottom:1px solid rgba(220,227,239,.8);
    }
    .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:44px;height:44px;object-fit:contain;border-radius:12px;background:#fff;border:1px solid var(--line);padding:5px}
    .brand strong{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted);margin-top:3px}
    .nav-toggle{display:none;border:1px solid var(--line);background:#fff;color:var(--text);border-radius:12px;padding:10px 12px}
    .nav-links{display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-end;gap:10px}
    .nav-links a{font-size:14px;color:var(--text);padding:9px 12px;border-radius:999px;transition:.25s}
    .nav-links a:hover{background:#eaf0ff;color:var(--primary)}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:1px solid transparent;border-radius:14px;padding:12px 18px;
      font-weight:700;transition:.25s;cursor:pointer;white-space:nowrap
    }
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 14px 26px rgba(74,108,247,.22)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 32px rgba(74,108,247,.28)}
    .btn-light{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-light:hover{border-color:#c8d4ea;transform:translateY(-2px)}
    main{display:block}
    section{padding:72px 0}
    .hero{padding:46px 0 48px}
    .hero-grid{display:grid;grid-template-columns:1.22fr .78fr;gap:24px;align-items:stretch}
    .hero-card,.glass-card,.panel,.faq-item,.review-card,.case-card,.step-card,.metric,.service-card,.article-card,.info-card,.price-card,.contact-card,.compare-card{
      background:rgba(255,255,255,.88);border:1px solid rgba(220,227,239,.95);border-radius:var(--radius);box-shadow:var(--shadow-soft)
    }
    .hero-card{padding:34px;position:relative;overflow:hidden}
    .hero-card:before,.hero-card:after{
      content:"";position:absolute;border-radius:999px;filter:blur(8px);opacity:.55;pointer-events:none
    }
    .hero-card:before{width:180px;height:180px;background:rgba(74,108,247,.12);top:-40px;right:-40px}
    .hero-card:after{width:220px;height:220px;background:rgba(255,122,89,.10);bottom:-90px;left:-80px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#eef3ff;color:#3357d3;font-size:13px;font-weight:700}
    h1{font-size:clamp(30px,4vw,52px);line-height:1.08;margin:18px 0 14px;letter-spacing:-.03em}
    .lead{font-size:17px;line-height:1.8;color:var(--muted);max-width:54ch;margin:0 0 22px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px}
    .hero-points{display:grid;grid-template-columns:repeat(3, minmax(0,1fr));gap:12px;margin-top:18px}
    .mini{
      padding:14px;border-radius:16px;background:linear-gradient(180deg,#fff,#f7f9fe);border:1px solid var(--line)
    }
    .mini strong{display:block;font-size:18px}
    .mini span{display:block;color:var(--muted);font-size:13px;margin-top:4px;line-height:1.5}
    .hero-side{display:grid;gap:16px}
    .side-top{padding:22px}
    .side-top h2,.section-title h2{font-size:28px;line-height:1.15;margin:0}
    .section-title p{margin:10px 0 0;color:var(--muted);line-height:1.75;max-width:72ch}
    .side-list{display:grid;gap:12px;margin-top:16px}
    .side-row{display:flex;gap:12px;align-items:flex-start;padding:14px;border-radius:16px;background:#f8faff;border:1px solid var(--line)}
    .dot{width:10px;height:10px;border-radius:50%;margin-top:6px;background:linear-gradient(135deg,var(--primary),var(--accent))}
    .section-head{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:22px}
    .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}
    .metric,.service-card,.step-card,.case-card,.review-card,.article-card,.info-card,.price-card,.contact-card,.compare-card,.panel,.faq-item{padding:22px}
    .metric h3,.service-card h3,.step-card h3,.case-card h3,.review-card h3,.article-card h3,.info-card h3,.price-card h3,.contact-card h3,.compare-card h3{margin:10px 0 8px;font-size:18px}
    .metric p,.service-card p,.step-card p,.case-card p,.review-card p,.article-card p,.info-card p,.price-card p,.contact-card p,.compare-card p{margin:0;color:var(--muted);line-height:1.75}
    .icon{
      width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
      background:linear-gradient(135deg, rgba(74,108,247,.14), rgba(139,92,246,.12));
      color:var(--primary);font-weight:900
    }
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span,.tag-cloud a{padding:10px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#36506f;font-size:13px}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start}
    .table-wrap{overflow:auto;border-radius:20px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-soft)}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:16px 14px;border-bottom:1px solid #e7edf7;text-align:left;font-size:14px;vertical-align:top}
    th{background:#f7f9fe;color:#22334d;font-size:14px}
    tr:last-child td{border-bottom:none}
    .rating{
      display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:12px 0 14px
    }
    .stars{color:#f5a623;font-size:18px;letter-spacing:2px}
    .score{display:inline-flex;align-items:center;padding:8px 12px;border-radius:999px;background:#eef7ff;color:#1652b5;font-weight:700}
    .compare-card .score-big{font-size:44px;font-weight:900;line-height:1;color:var(--primary);margin:6px 0}
    .process{display:grid;grid-template-columns:repeat(4, minmax(0,1fr));gap:16px}
    .step-num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;font-weight:800}
    .reviews{display:grid;grid-template-columns:repeat(3, minmax(0,1fr));gap:16px}
    .review-meta{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:10px}
    .pill{font-size:12px;padding:6px 10px;border-radius:999px;background:#eef7ff;color:#2b5bc9}
    .cases,.articles,.help-grid,.price-grid{display:grid;grid-template-columns:repeat(3, minmax(0,1fr));gap:16px}
    .case-card .meta,.article-card .meta{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 0}
    .meta span{font-size:12px;padding:6px 10px;border-radius:999px;background:#f3f6fc;color:#4d627e}
    .faq{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:20px 22px;cursor:pointer}
    .faq-q h3{margin:0;font-size:16px;line-height:1.5}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
    .faq-a > div{padding:0 22px 20px;color:var(--muted);line-height:1.8}
    .faq-item.active .faq-a{max-height:220px}
    .faq-item.active .chev{transform:rotate(180deg)}
    .chev{transition:.25s;color:#6b7a90}
    .form-grid{display:grid;grid-template-columns:repeat(2, minmax(0,1fr));gap:14px}
    .field{display:flex;flex-direction:column;gap:8px}
    .field.full{grid-column:1 / -1}
    label{font-size:14px;font-weight:700;color:#22334d}
    input,select,textarea{
      width:100%;border:1px solid #d7e0ee;border-radius:14px;background:#fff;color:var(--text);
      padding:13px 14px;font:inherit;outline:none;transition:.25s
    }
    textarea{min-height:130px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#7da0ff;box-shadow:0 0 0 4px rgba(74,108,247,.10)}
    .contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:16px;align-items:start}
    .contact-card .qrcode{width:168px;border-radius:18px;border:1px solid var(--line);padding:10px;background:#fff}
    footer{
      margin-top:18px;padding:34px 0 28px;background:#eef3fb;border-top:1px solid #dce3ef;color:#233149
    }
    footer a{color:#244b9b}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:16px}
    .footer-small{margin-top:18px;padding-top:16px;border-top:1px solid #d6deeb;color:#607089;font-size:13px;line-height:1.8}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:60;display:flex;flex-direction:column;gap:10px
    }
    .float-btn{
      display:inline-flex;align-items:center;justify-content:center;min-width:48px;height:48px;padding:0 14px;border-radius:999px;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:var(--shadow);font-weight:800
    }
    .float-card{
      position:absolute;right:0;bottom:58px;width:260px;padding:16px;border-radius:18px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);display:none
    }
    .floating.open .float-card{display:block}
    .backtop{position:fixed;right:16px;bottom:78px;z-index:60;display:none}
    .backtop.show{display:block}
    .reveal{opacity:0;transform:translateY(18px);transition:.55s ease}
    .reveal.in{opacity:1;transform:translateY(0)}
    .home-link{font-weight:700}
    .mini-list{display:grid;gap:10px}
    .mini-list div{display:flex;justify-content:space-between;gap:12px;padding:12px 14px;border-radius:14px;background:#f8faff;border:1px solid var(--line);font-size:14px}
    .timeline{display:grid;gap:12px}
    .timeline .titem{display:flex;gap:12px;padding:14px;border-radius:16px;background:#fff;border:1px solid var(--line)}
    .timeline .titem b{color:var(--primary)}
    .mobile-only{display:none}
    @media (max-width: 1024px){
      .hero-grid,.contact-grid,.footer-grid,.split,.grid-4,.grid-3,.process,.reviews,.cases,.articles,.help-grid,.price-grid{grid-template-columns:1fr 1fr}
      .hero-points{grid-template-columns:1fr}
    }
    @media (max-width: 760px){
      .nav-toggle{display:inline-flex}
      .nav-links{
        display:none;position:absolute;left:16px;right:16px;top:72px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch
      }
      .nav-links.open{display:flex}
      .nav-links a{padding:12px 14px}
      .hero-grid,.contact-grid,.footer-grid,.split,.grid-4,.grid-3,.process,.reviews,.cases,.articles,.help-grid,.price-grid,.form-grid{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:flex-start}
      .hero-card{padding:24px}
      .nav{position:relative}
      .mobile-only{display:block}
      .desk-only{display:none}
      .backtop{bottom:82px}
    }