:root{
      --bg:#f5f7fb;
      --panel:#ffffff;
      --panel-2:#f7fafc;
      --text:#142033;
      --muted:#5d6b83;
      --line:#e4eaf2;
      --brand:#3b82f6;
      --brand2:#7c3aed;
      --brand3:#06b6d4;
      --accent:#f97316;
      --good:#16a34a;
      --shadow:0 16px 40px rgba(15,23,42,.08);
      --radius:20px;
      --radius-sm:14px;
      --max:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:
      radial-gradient(circle at top left,rgba(59,130,246,.10),transparent 28%),
      radial-gradient(circle at top right,rgba(124,58,237,.10),transparent 26%),
      linear-gradient(180deg,#f8fbff 0%,#f5f7fb 100%);
      color:var(--text);line-height:1.65}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(100% - 32px,var(--max));margin:0 auto}
    .site-header,.site-footer{position:relative;z-index:10}
    .site-header{backdrop-filter:saturate(160%) blur(14px);background:rgba(255,255,255,.78);border-bottom:1px solid rgba(228,234,242,.8);position:sticky;top:0}
    .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;border:1px solid var(--line);padding:6px;box-shadow:0 8px 24px rgba(15,23,42,.06)}
    .brand strong{display:block;font-size:16px;line-height:1.2}
    .brand span{display:block;font-size:12px;color:var(--muted)}
    .nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;color:var(--text)}
    .nav-links{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:flex-end}
    .nav-links a{font-size:14px;color:var(--muted);padding:8px 10px;border-radius:999px;transition:.2s ease}
    .nav-links a:hover,.nav-links a.active{background:linear-gradient(135deg,rgba(59,130,246,.12),rgba(124,58,237,.12));color:var(--text)}
    .hero{padding:42px 0 24px}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px;align-items:stretch}
    .hero-main,.hero-side,.card,.section-box,.testimonial,.faq-item,.form-card,.price-card{background:rgba(255,255,255,.86);border:1px solid rgba(228,234,242,.95);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-main{padding:34px;position:relative;overflow:hidden}
    .hero-main:before,.hero-main:after{content:"";position:absolute;border-radius:999px;filter:blur(4px);pointer-events:none}
    .hero-main:before{width:220px;height:220px;background:radial-gradient(circle,rgba(59,130,246,.18),transparent 68%);right:-50px;top:-40px}
    .hero-main:after{width:180px;height:180px;background:radial-gradient(circle,rgba(124,58,237,.16),transparent 68%);left:-40px;bottom:-40px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:linear-gradient(135deg,rgba(6,182,212,.12),rgba(59,130,246,.12));color:#0f4c81;font-size:13px;font-weight:600}
    h1{font-size:clamp(32px,5vw,54px);line-height:1.08;margin:18px 0 14px;letter-spacing:-.02em}
    .hero p{margin:0;color:var(--muted);font-size:16px;max-width:62ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:12px 18px;border-radius:14px;border:1px solid transparent;font-weight:700;transition:.22s ease;cursor:pointer}
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 14px 28px rgba(59,130,246,.24)}
    .btn-secondary{background:#fff;border-color:var(--line);color:var(--text)}
    .btn:hover{transform:translateY(-2px)}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}
    .mini-stat{padding:16px;background:linear-gradient(180deg,#fff, #f8fbff);border:1px solid var(--line);border-radius:18px}
    .mini-stat b{display:block;font-size:22px}
    .mini-stat span{font-size:13px;color:var(--muted)}
    .hero-side{padding:22px;display:grid;gap:14px}
    .side-badge{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border-radius:18px;background:linear-gradient(135deg,rgba(59,130,246,.10),rgba(124,58,237,.10));border:1px solid rgba(59,130,246,.14)}
    .side-badge strong{display:block}
    .side-badge small{color:var(--muted)}
    .side-list{display:grid;gap:10px}
    .side-list div{display:flex;align-items:flex-start;gap:10px;padding:12px 0;border-bottom:1px dashed var(--line)}
    .side-list div:last-child{border-bottom:none}
    .dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2));margin-top:7px;flex:none}
    .section{padding:18px 0 8px}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin:10px 0 18px}
    .section-head h2{margin:0;font-size:28px}
    .section-head p{margin:0;color:var(--muted);max-width:70ch}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .card{padding:22px;transition:.22s ease}
    .card:hover,.testimonial:hover,.faq-item:hover,.form-card:hover,.price-card:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(15,23,42,.10)}
    .card h3,.testimonial h3,.price-card h3{margin:0 0 10px;font-size:18px}
    .card p,.testimonial p,.price-card p{margin:0;color:var(--muted)}
    .icon-chip{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(59,130,246,.15),rgba(6,182,212,.14));color:#134e7c;font-weight:800;margin-bottom:14px}
    .stats-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .stat{padding:20px;border-radius:18px;background:linear-gradient(180deg,#fff, #f8fbff);border:1px solid var(--line)}
    .stat b{font-size:28px;display:block}
    .stat span{color:var(--muted);font-size:13px}
    .two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .steps{display:grid;gap:12px}
    .step{display:flex;gap:14px;padding:16px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .step-num{width:34px;height:34px;border-radius:12px;flex:none;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;font-weight:800}
    .compare-wrap{overflow:auto;border-radius:18px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
    th{background:#f8fbff;color:#22324c;font-size:14px}
    td{color:var(--text);font-size:14px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#344256;font-size:13px}
    .timeline{display:grid;gap:12px}
    .timeline-item{display:grid;grid-template-columns:110px 1fr;gap:14px;padding:15px 16px;border-radius:16px;background:#fff;border:1px solid var(--line)}
    .timeline-item b{color:#0f4c81}
    .highlight{background:linear-gradient(135deg,rgba(59,130,246,.08),rgba(124,58,237,.08));border:1px solid rgba(59,130,246,.10)}
    .case-list,.article-list,.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .case-card,.article-card,.testimonial{padding:20px}
    .case-card .meta,.article-card .meta{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:12px}
    .pill{font-size:12px;padding:6px 10px;border-radius:999px;background:#eef5ff;color:#28518a}
    .article-card h3{margin:0 0 10px}
    .faq{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{width:100%;border:0;background:#fff;padding:18px 20px;text-align:left;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:16px;font-weight:700;color:var(--text);cursor:pointer}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;padding:0 20px;color:var(--muted)}
    .faq-item.open .faq-a{max-height:220px;padding-bottom:18px}
    .faq-toggle{flex:none;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#f3f7ff;color:#27538b}
    .form-card{padding:22px}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .field{display:grid;gap:8px}
    label{font-size:14px;color:#334155;font-weight:600}
    input,select,textarea{width:100%;padding:13px 14px;border:1px solid #d8e1ee;border-radius:12px;background:#fff;color:var(--text);font:inherit;outline:none}
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#8ab4ff;box-shadow:0 0 0 4px rgba(59,130,246,.10)}
    .form-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:14px}
    .kefu-float{position:fixed;right:16px;bottom:16px;z-index:30;display:grid;gap:10px}
    .float-btn{display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:16px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 16px 28px rgba(59,130,246,.25);font-weight:700}
    .float-panel{display:none;width:220px;padding:14px;border-radius:18px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
    .float-panel img{width:100%;border-radius:14px}
    .site-footer{margin-top:18px;background:#f3f6fb;border-top:1px solid var(--line);color:#2a3648}
    .footer-grid{display:grid;grid-template-columns:1.3fr .7fr 1fr;gap:18px;padding:28px 0}
    .footer-grid h3{margin:0 0 12px}
    .footer-links{display:grid;gap:8px}
    .footer-links a,.footer-links span{color:#42536a;font-size:14px}
    .copyright{padding:16px 0 22px;border-top:1px solid var(--line);color:#66758b;font-size:13px}
    .scroll-top{position:fixed;right:16px;bottom:92px;z-index:30;border:1px solid var(--line);background:#fff;color:var(--text);width:46px;height:46px;border-radius:14px;display:grid;place-items:center;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:.2s}
    .scroll-top.show{opacity:1;pointer-events:auto}
    .reveal{opacity:0;transform:translateY(18px);transition:.55s ease}
    .reveal.in{opacity:1;transform:none}
    .subtle{color:var(--muted)}
    .list{display:grid;gap:10px;margin:0;padding:0;list-style:none}
    .list li{display:flex;gap:10px;align-items:flex-start}
    .list li:before{content:"";width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2));margin-top:9px;flex:none}
    .table-note{padding:14px 16px;background:#f8fbff;border-top:1px solid var(--line);color:var(--muted);font-size:13px}
    .small-logos{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
    .small-logos img{width:42px;height:42px;border-radius:12px;border:1px solid var(--line);padding:5px;background:#fff}
    .article-card .link{color:#0f4c81;font-weight:700}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-4,.case-list,.article-list,.review-grid,.footer-grid,.two-col,.stats-bar{grid-template-columns:1fr 1fr}
      .hero-main{padding:26px}
      .section-head{align-items:flex-start;flex-direction:column}
    }
    @media (max-width: 720px){
      .nav-toggle{display:inline-flex}
      .nav-links{display:none;width:100%;padding:10px 0 4px;justify-content:flex-start}
      .nav-links.open{display:flex}
      .nav{flex-wrap:wrap}
      .hero-grid,.grid-3,.grid-4,.case-list,.article-list,.review-grid,.footer-grid,.two-col,.stats-bar,.hero-points,.form-grid{grid-template-columns:1fr}
      .hero{padding-top:20px}
      .hero-main,.hero-side,.card,.form-card{padding:20px}
      .timeline-item{grid-template-columns:1fr}
      .btn{width:100%}
      .hero-actions,.form-actions{flex-direction:column;align-items:stretch}
      .scroll-top{bottom:96px}
    }