:root{
      --bg:#f4f8fb;
      --panel:#ffffff;
      --panel-2:#eef6fb;
      --line:#d8e4ee;
      --text:#173042;
      --muted:#5f7383;
      --primary:#1aa3a8;
      --primary-2:#2d7ff9;
      --accent:#00c2a8;
      --shadow:0 16px 40px rgba(18, 54, 82, .10);
      --shadow-2:0 10px 24px rgba(18, 54, 82, .08);
      --radius:18px;
      --radius-sm:14px;
      --container: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(26,163,168,.12), transparent 30%),
        radial-gradient(circle at top right, rgba(45,127,249,.10), transparent 28%),
        linear-gradient(180deg,#f9fcfe 0%, #f3f8fb 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(14px);
      background:rgba(244,248,251,.88);
      border-bottom:1px solid rgba(216,228,238,.9);
    }
    .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;background:#fff;border-radius:12px;padding:6px;border:1px solid var(--line)}
    .brand h2{margin:0;font-size:18px;line-height:1.1}
    .brand p{margin:4px 0 0;color:var(--muted);font-size:12px}
    .nav-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}
    .menu-toggle{
      display:none;border:1px solid var(--line);background:#fff;color:var(--text);
      border-radius:12px;padding:10px 12px;font-size:14px;cursor:pointer;
      box-shadow:var(--shadow-2);
    }
    .nav-links{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
    .nav-links a{
      color:var(--text);font-size:14px;padding:8px 10px;border-radius:999px;
      transition:.22s ease;background:transparent;
    }
    .nav-links a:hover,.nav-links a.active{background:rgba(26,163,168,.10);color:#0f5f63}
    .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;cursor:pointer;transition:.22s ease;
      box-shadow:var(--shadow-2);
    }
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff}
    .btn-secondary{background:#fff;color:var(--text);border-color:var(--line)}
    .btn:hover{transform:translateY(-1px);box-shadow:var(--shadow)}
    .hero{
      position:relative;overflow:hidden;padding:34px 0 18px;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.18fr .82fr;gap:22px;align-items:stretch;
    }
    .hero-card,.panel{
      background:rgba(255,255,255,.86);
      border:1px solid rgba(216,228,238,.95);
      border-radius:24px;
      box-shadow:var(--shadow);
    }
    .hero-card{padding:30px}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;border-radius:999px;background:rgba(26,163,168,.10);
      color:#11656a;font-weight:700;font-size:13px;margin-bottom:16px;
    }
    h1{margin:0;font-size:clamp(32px,4.5vw,56px);line-height:1.06;letter-spacing:-.02em}
    .hero p{margin:16px 0 0;color:var(--muted);font-size:16px;line-height:1.8;max-width:58ch}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
    .trust-row{
      display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:24px
    }
    .stat{
      background:linear-gradient(180deg,#fff, #f7fbfd);
      border:1px solid var(--line);border-radius:18px;padding:16px;
    }
    .stat strong{display:block;font-size:22px;line-height:1.1}
    .stat span{display:block;color:var(--muted);font-size:13px;margin-top:6px;line-height:1.5}
    .hero-side{
      display:grid;gap:14px;
    }
    .hero-side .panel{padding:20px}
    .quick-list{display:grid;gap:12px;margin:0;padding:0;list-style:none}
    .quick-list li{display:flex;gap:10px;align-items:flex-start;color:var(--text);line-height:1.65}
    .dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));margin-top:7px;flex:0 0 auto}
    .section{padding:18px 0}
    .section-head{
      display:flex;align-items:end;justify-content:space-between;gap:14px;margin-bottom:16px
    }
    .section-head h2{margin:0;font-size:28px;line-height:1.2}
    .section-head p{margin:0;color:var(--muted);max-width:62ch;line-height:1.7}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .card{
      background:rgba(255,255,255,.9);border:1px solid var(--line);
      border-radius:var(--radius);box-shadow:var(--shadow-2);padding:20px;
      transition:transform .22s ease, box-shadow .22s ease;
    }
    .card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .card h3{margin:0 0 10px;font-size:18px}
    .card p{margin:0;color:var(--muted);line-height:1.75}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#214154;font-size:13px}
    .split{
      display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:start;
    }
    .timeline{display:grid;gap:14px}
    .step{
      display:flex;gap:14px;align-items:flex-start;padding:16px;border-radius:18px;
      background:linear-gradient(180deg,#fff,#f9fcfe);border:1px solid var(--line)
    }
    .step-num{
      width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
      color:#fff;font-weight:800;background:linear-gradient(135deg,var(--primary),var(--primary-2));flex:0 0 auto;
    }
    .table-wrap{overflow-x:auto;border-radius:18px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-2)}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;font-size:14px;line-height:1.7}
    th{background:#f4fafc;color:#153042;font-size:14px}
    tr:last-child td{border-bottom:none}
    .rating{
      display:grid;gap:14px
    }
    .score{
      display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px;border-radius:18px;background:linear-gradient(135deg, rgba(26,163,168,.10), rgba(45,127,249,.08));border:1px solid rgba(26,163,168,.18)
    }
    .stars{color:#f3b51c;font-size:20px;letter-spacing:2px}
    .review-grid,.case-grid,.article-grid,.faq-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .review-card .meta,.case-card .meta{display:flex;align-items:center;gap:10px;margin-bottom:12px}
    .avatar{
      width:42px;height:42px;border-radius:50%;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;
      display:grid;place-items:center;font-weight:800;flex:0 0 auto;
    }
    .mini{font-size:12px;color:var(--muted)}
    .articles .article-grid .card a{color:#0d6c72;font-weight:700}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:grid;gap:8px}
    label{font-size:14px;font-weight:700}
    input,select,textarea{
      width:100%;border:1px solid var(--line);border-radius:14px;background:#fff;
      padding:13px 14px;font:inherit;color:var(--text);outline:none;
    }
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:rgba(26,163,168,.75);box-shadow:0 0 0 4px rgba(26,163,168,.10)}
    .form-actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-top:8px}
    .footer{
      margin-top:18px;padding:18px 0 24px;border-top:1px solid var(--line);
      background:rgba(255,255,255,.72);
    }
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px}
    .footer a{color:#0f6a71}
    .footer small,.footer p{color:var(--muted);line-height:1.7}
    .fixed-tools{
      position:fixed;right:16px;bottom:16px;display:grid;gap:10px;z-index:60;
    }
    .tool{
      width:46px;height:46px;border-radius:14px;background:linear-gradient(135deg,var(--primary),var(--primary-2));
      color:#fff;display:grid;place-items:center;box-shadow:var(--shadow);border:none;cursor:pointer;font-size:18px
    }
    .floating-contact{
      position:fixed;left:16px;bottom:16px;z-index:60;max-width:320px;
    }
    .contact-card{
      display:flex;gap:12px;align-items:center;padding:12px 14px;border-radius:18px;
      background:rgba(255,255,255,.92);border:1px solid var(--line);box-shadow:var(--shadow)
    }
    .contact-card img{width:76px;height:76px;object-fit:cover;border-radius:14px;border:1px solid var(--line);background:#fff}
    .contact-card strong{display:block;margin-bottom:4px}
    .reveal{opacity:0;transform:translateY(16px);transition:.55s ease}
    .reveal.in{opacity:1;transform:none}
    .accordion{display:grid;gap:12px}
    .acc-item{border:1px solid var(--line);border-radius:18px;background:#fff;overflow:hidden}
    .acc-btn{
      width:100%;display:flex;justify-content:space-between;align-items:center;gap:12px;
      padding:16px 18px;border:none;background:transparent;color:var(--text);font:inherit;font-weight:700;cursor:pointer;text-align:left
    }
    .acc-panel{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 18px}
    .acc-item.open .acc-panel{padding:0 18px 16px;max-height:220px}
    .badge{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;background:#eef7ff;color:#185d95;font-size:12px;font-weight:700}
    .note-box{
      padding:18px;border-radius:18px;background:linear-gradient(180deg,#f7fcff,#eef9fb);border:1px solid var(--line)
    }
    .service-map{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}
    .service-map .card{padding:16px}
    .article-list{display:grid;gap:12px}
    .article-item{
      display:flex;justify-content:space-between;gap:12px;align-items:center;
      padding:14px 16px;border-radius:16px;background:#fff;border:1px solid var(--line)
    }
    .article-item span{color:var(--muted);font-size:13px}
    .desktop-only{display:block}
    .mobile-only{display:none}
    .ai-page-image{border-radius:18px;border:1px solid var(--line);box-shadow:var(--shadow-2)}
    .gallery{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .gallery .card{padding:14px}
    .gallery img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:14px}
    .center{text-align:center}
    @media (max-width: 1024px){
      .hero-grid,.split,.footer-grid,.grid-4,.service-map,.review-grid,.case-grid,.article-grid,.faq-grid{grid-template-columns:1fr 1fr}
      .grid-3{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 780px){
      .menu-toggle{display:inline-flex}
      .nav-links{
        display:none;position:absolute;left:16px;right:16px;top:68px;padding:14px;
        border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:var(--shadow);
      }
      .nav-links.open{display:flex;flex-direction:column;align-items:stretch}
      .nav-actions{gap:8px}
      .hero-grid,.split,.footer-grid,.grid-3,.grid-4,.service-map,.review-grid,.case-grid,.article-grid,.faq-grid,.form-grid,.gallery{grid-template-columns:1fr}
      .trust-row{grid-template-columns:1fr 1fr}
      .desktop-only{display:none}
      .mobile-only{display:block}
      .hero-card{padding:22px}
      .section-head{flex-direction:column;align-items:flex-start}
      .floating-contact{left:12px;right:12px;bottom:72px;max-width:none}
      .contact-card img{width:62px;height:62px}
    }