:root{
      --bg:#f5f8fb;
      --bg2:#eef7fb;
      --card:#ffffff;
      --line:#d8e6ee;
      --text:#163142;
      --muted:#5b7181;
      --primary:#0c8fb2;
      --primary2:#0f5d8c;
      --accent:#19c6b6;
      --shadow:0 18px 45px rgba(18, 74, 97, .10);
      --radius:20px;
      --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(25,198,182,.12), transparent 28%),
        radial-gradient(circle at top right, rgba(12,143,178,.10), transparent 24%),
        linear-gradient(180deg, #f7fbfd 0%, #f4f8fb 40%, #f7fbfd 100%);
    }
    a{color:var(--primary2);text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(100% - 32px, var(--container));margin:0 auto}
    header{
      position:sticky;top:0;z-index:30;
      backdrop-filter:blur(14px);
      background:rgba(247,251,253,.84);
      border-bottom:1px solid rgba(216,230,238,.85);
    }
    .topbar{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}
    .brand .name{font-weight:800;letter-spacing:.4px}
    .brand .sub{font-size:12px;color:var(--muted);margin-top:2px}
    nav{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    nav a{font-size:14px;color:var(--text);padding:8px 10px;border-radius:999px}
    nav a:hover{background:rgba(12,143,178,.09);color:var(--primary2)}
    .nav-btn{display:none;border:1px solid var(--line);background:#fff;color:var(--text);border-radius:12px;padding:10px 12px}
    .hero{padding:28px 0 14px}
    .hero-grid{display:grid;grid-template-columns:1.4fr .9fr;gap:22px;align-items:stretch}
    .hero-main,.hero-side,.panel,.card,.faq-item,.form-box,.quote,.compare,.article,.timeline li,.price-card{
      background:rgba(255,255,255,.86);border:1px solid rgba(216,230,238,.9);border-radius:var(--radius);box-shadow:var(--shadow)
    }
    .hero-main{padding:32px;position:relative;overflow:hidden}
    .hero-main:before,.hero-main:after{
      content:"";position:absolute;border-radius:50%;filter:blur(2px);pointer-events:none
    }
    .hero-main:before{width:220px;height:220px;background:rgba(25,198,182,.12);right:-80px;top:-80px}
    .hero-main:after{width:180px;height:180px;background:rgba(12,143,178,.10);right:70px;bottom:-60px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--primary2);background:rgba(12,143,178,.08);padding:8px 12px;border-radius:999px}
    h1{font-size:clamp(30px,4vw,54px);line-height:1.08;margin:16px 0 14px}
    .lead{font-size:16px;line-height:1.8;color:var(--muted);max-width:58ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:13px 18px;border-radius:14px;border:1px solid transparent;font-weight:700;font-size:15px;
      transition:.25s ease;cursor:pointer
    }
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;box-shadow:0 14px 28px rgba(12,143,178,.22)}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .btn:hover{transform:translateY(-2px)}
    .hero-side{padding:20px;display:grid;gap:14px}
    .mini-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .stat{padding:16px;border-radius:16px;background:linear-gradient(180deg,#fff, #f4fbfd);border:1px solid var(--line)}
    .stat strong{display:block;font-size:22px;margin-bottom:6px}
    .stat span{font-size:13px;color:var(--muted);line-height:1.5}
    section{padding:16px 0}
    .section-title{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:16px}
    .section-title h2{margin:0;font-size:28px}
    .section-title p{margin:0;color:var(--muted);max-width:62ch}
    .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:20px}
    .card h3,.panel h3,.quote h3{margin:0 0 10px;font-size:18px}
    .card p,.panel p,.quote p,.article p,.faq-item p,.form-box p{margin:0;color:var(--muted);line-height:1.75}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:8px 12px;border-radius:999px;background:#f0fafc;border:1px solid #d7edf4;color:#17465a;font-size:13px}
    .panel{padding:22px}
    .flow{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:18px;border-radius:18px;background:linear-gradient(180deg,#fff,#f7fcfd);border:1px solid var(--line)}
    .step .num{font-weight:800;color:var(--primary2);margin-bottom:10px}
    .table-wrap{overflow-x:auto}
    table{width:100%;border-collapse:collapse;min-width:760px;background:#fff;border-radius:18px;overflow:hidden}
    th,td{padding:14px 12px;border-bottom:1px solid var(--line);text-align:left;font-size:14px;vertical-align:top}
    th{background:#eff9fc;color:#10384c}
    .highlight{color:#0f6f8e;font-weight:700}
    .compare{padding:22px}
    .compare-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
    .badge{border-radius:999px;padding:7px 11px;background:rgba(12,143,178,.08);color:var(--primary2);font-size:13px;font-weight:700}
    .reviews,.articles,.faq-list,.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .quote{padding:20px}
    .quote .meta{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:12px}
    .stars{color:#f4b400;font-size:16px;letter-spacing:2px}
    .articles .article{padding:18px}
    .article .date{font-size:13px;color:var(--muted);margin-bottom:8px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{width:100%;border:0;background:transparent;color:var(--text);text-align:left;padding:18px 20px;font-size:16px;font-weight:700;cursor:pointer;display:flex;justify-content:space-between;gap:12px}
    .faq-a{padding:0 20px 18px;display:none}
    .faq-item.open .faq-a{display:block}
    .faq-item.open .faq-q{color:var(--primary2)}
    .form-box{padding:22px}
    form{display:grid;gap:14px}
    .fields{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    input,select,textarea{
      width:100%;padding:13px 14px;border:1px solid var(--line);border-radius:14px;background:#fff;color:var(--text);font:inherit;outline:none
    }
    textarea{min-height:128px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:rgba(12,143,178,.55);box-shadow:0 0 0 4px rgba(12,143,178,.08)}
    .footer{
      margin-top:16px;padding:26px 0 32px;border-top:1px solid rgba(216,230,238,.9);
      background:linear-gradient(180deg, rgba(242,248,251,.96), rgba(238,246,250,.98));
      color:var(--text)
    }
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr 1fr;gap:16px;align-items:start}
    .footer a{color:var(--primary2)}
    .footer small{color:var(--muted)}
    .service-box{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .service-list{padding-left:18px;margin:0;color:var(--muted);line-height:1.8}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:40;display:grid;gap:10px
    }
    .floating a,.floating button{
      border:0;border-radius:999px;padding:12px 14px;background:linear-gradient(135deg,var(--primary2),var(--primary));color:#fff;font-weight:700;box-shadow:0 14px 28px rgba(12,143,178,.22);cursor:pointer
    }
    .backtop{display:none}
    .reveal{opacity:0;transform:translateY(18px);transition:.6s ease}
    .reveal.in{opacity:1;transform:none}
    .timeline li{list-style:none;padding:18px}
    .timeline ul{margin:0;padding:0}
    .timeline .t{font-weight:800;color:var(--primary2);margin-bottom:8px}
    .home-link{font-weight:800}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-4,.flow,.reviews,.articles,.faq-list,.timeline,.footer-grid,.service-box{grid-template-columns:1fr}
      .hero{padding-top:18px}
      nav{display:none;position:absolute;left:16px;right:16px;top:68px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:10px;box-shadow:var(--shadow)}
      nav.open{display:flex;flex-direction:column;align-items:flex-start}
      .nav-btn{display:inline-flex}
      .fields{grid-template-columns:1fr}
      .section-title{align-items:flex-start;flex-direction:column}
    }