:root{
      --bg:#f5f8ff;
      --panel:#ffffff;
      --panel-2:#eef4ff;
      --text:#16304f;
      --muted:#5f6f86;
      --primary:#0b4dbb;
      --primary-2:#1166e0;
      --accent:#21a6ff;
      --line:#d9e4f5;
      --shadow:0 18px 40px rgba(8,53,124,.12);
      --shadow-sm:0 10px 24px rgba(8,53,124,.08);
      --radius:18px;
      --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;background:linear-gradient(180deg,#eef5ff 0%,#f7faff 22%,#ffffff 100%);color:var(--text)}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{max-width:var(--container);margin:0 auto;padding:0 20px}
    .topbar{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.86);backdrop-filter:blur(14px);border-bottom:1px solid rgba(217,228,245,.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}
    .brand strong{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted);margin-top:4px}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;color:var(--text)}
    .navlinks{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .navlinks a{font-size:14px;color:#29405f;padding:8px 10px;border-radius:10px}
    .navlinks a:hover,.navlinks a:focus{background:#edf4ff;color:var(--primary)}
    .navcta{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;padding:11px 16px;border-radius:14px;box-shadow:0 12px 20px rgba(11,77,187,.18)}
    .hero{position:relative;overflow:hidden;padding:36px 0 28px}
    .hero:before,.hero:after{content:"";position:absolute;border-radius:999px;filter:blur(2px);pointer-events:none}
    .hero:before{width:280px;height:280px;background:radial-gradient(circle,rgba(33,166,255,.25),rgba(33,166,255,0) 68%);top:-40px;right:-60px}
    .hero:after{width:220px;height:220px;background:radial-gradient(circle,rgba(17,102,224,.18),rgba(17,102,224,0) 70%);bottom:-40px;left:-40px}
    .hero-grid{display:grid;grid-template-columns:1.3fr .9fr;gap:26px;align-items:stretch}
    .hero-main,.hero-side,.card,.section,.faq-item,.review,.timeline li,.price-item,.case,.article,.formwrap,.compare{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
    .hero-main{padding:30px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:#eaf2ff;color:var(--primary);border:1px solid #d6e5ff;border-radius:999px;padding:7px 12px;font-size:13px;font-weight:600}
    h1{margin:16px 0 14px;font-size:clamp(30px,4vw,50px);line-height:1.12;color:#10253f}
    .lead{font-size:16px;line-height:1.8;color:var(--muted);max-width:62ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 18px;border-radius:14px;border:1px solid transparent;font-weight:700}
    .btn.primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff}
    .btn.ghost{background:#f3f7ff;border-color:#dbe7fb;color:#173558}
    .hero-stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:24px}
    .stat{background:linear-gradient(180deg,#f7fbff,#eef5ff);border:1px solid #dbe7fb;border-radius:16px;padding:16px}
    .stat strong{display:block;font-size:24px;color:var(--primary)}
    .stat span{display:block;font-size:13px;color:var(--muted);margin-top:6px;line-height:1.6}
    .hero-side{padding:22px;display:flex;flex-direction:column;gap:14px}
    .hero-side .mini{padding:18px;border-radius:16px;background:linear-gradient(180deg,#f4f8ff,#ffffff);border:1px solid #e0eaf8}
    .mini h3,.section h2{margin:0 0 10px;font-size:22px}
    .mini p,.section p{margin:0;color:var(--muted);line-height:1.8}
    .tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
    .tag{padding:8px 12px;border-radius:999px;background:#eef5ff;border:1px solid #d8e6fb;color:#29507f;font-size:13px}
    section{padding:18px 0}
    .section{padding:26px}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:14px;margin-bottom:18px}
    .section-head p{max-width:72ch}
    .grid4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .card{padding:20px}
    .card h3{margin:10px 0 8px;font-size:18px}
    .card p,.card li{color:var(--muted);line-height:1.75}
    .icon{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,#e9f2ff,#d7e8ff);display:grid;place-items:center;color:var(--primary);font-weight:800}
    .steps{counter-reset:step}
    .steps .card{position:relative;padding-top:22px}
    .steps .card:before{counter-increment:step;content:counter(step);position:absolute;top:16px;right:16px;width:34px;height:34px;border-radius:50%;background:#eaf2ff;color:var(--primary);display:grid;place-items:center;font-weight:800}
    .table-wrap{overflow-x:auto;border-radius:16px;border:1px solid var(--line)}
    table{width:100%;border-collapse:collapse;min-width:760px;background:#fff}
    th,td{padding:14px 16px;border-bottom:1px solid #e7eef9;text-align:left;vertical-align:top}
    th{background:#f3f7ff;color:#173558}
    td{color:#34506f}
    .rating{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
    .stars{color:#f6b400;font-size:18px;letter-spacing:2px}
    .compare-note{background:linear-gradient(135deg,#eef5ff,#f8fbff);border:1px solid #dce8fb;border-radius:16px;padding:16px;margin-top:14px}
    .timeline{list-style:none;padding:0;margin:0;display:grid;gap:12px}
    .timeline li{padding:16px 18px;display:flex;gap:14px;align-items:flex-start}
    .dot{width:12px;height:12px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));margin-top:6px;flex:0 0 auto}
    .price-item{padding:18px;background:linear-gradient(180deg,#ffffff,#f6f9ff)}
    .price{font-size:28px;color:var(--primary);font-weight:800;margin:10px 0 6px}
    .badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
    .badge{font-size:12px;padding:6px 10px;border-radius:999px;background:#edf4ff;color:#2b4d78;border:1px solid #dce7f7}
    .review{padding:18px}
    .review strong{display:block;margin-bottom:6px}
    .review span{display:block;color:var(--muted);font-size:13px;margin-bottom:10px}
    .faq{display:grid;gap:12px}
    .faq-item{overflow:hidden}
    .faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px;border:0;background:#fff;color:var(--text);font-size:16px;font-weight:700;text-align:left;cursor:pointer}
    .faq-a{max-height:0;overflow:hidden;padding:0 18px;color:var(--muted);line-height:1.8;transition:max-height .28s ease,padding .28s ease}
    .faq-item.open .faq-a{max-height:220px;padding:0 18px 18px}
    .formwrap{padding:22px}
    form{display:grid;gap:14px}
    .formgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    label{display:grid;gap:8px;font-size:14px;color:#27415f}
    input,select,textarea{width:100%;padding:13px 14px;border-radius:12px;border:1px solid #cfe0f5;background:#fff;color:var(--text);font:inherit;outline:none}
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(11,77,187,.08)}
    .submit-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
    .footer{padding:22px 0 32px;color:#29405f}
    .footer .section{padding:22px}
    .footer a{color:#0b4dbb}
    .muted{color:var(--muted)}
    .floatbar{position:fixed;right:16px;bottom:16px;z-index:40;display:flex;flex-direction:column;gap:10px}
    .floatbtn{width:52px;height:52px;border-radius:16px;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;display:grid;place-items:center;box-shadow:var(--shadow);border:0;cursor:pointer}
    .backtop{position:fixed;right:16px;bottom:78px;z-index:40;opacity:0;pointer-events:none;transition:.2s}
    .backtop.show{opacity:1;pointer-events:auto}
    .media-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .media-row img{width:100%;border-radius:16px;border:1px solid var(--line);box-shadow:var(--shadow-sm)}
    .service-map{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
    .service-map .card{padding:16px}
    .article-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .article{padding:18px}
    .article time{display:block;color:#6a7c94;font-size:13px;margin-bottom:8px}
    .article h3{margin:0 0 8px;font-size:17px}
    .home-link{color:#0b4dbb;font-weight:700}
    @media (max-width: 960px){
      .hero-grid,.grid4,.grid3,.grid2,.media-row,.service-map,.article-list{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 720px){
      .menu-toggle{display:inline-flex}
      .nav{flex-wrap:wrap}
      .navlinks{display:none;flex-direction:column;align-items:stretch;width:100%;padding:10px 0 2px}
      .navlinks.open{display:flex}
      .navlinks a,.navcta{width:100%;justify-content:center}
      .hero-grid,.grid4,.grid3,.grid2,.formgrid,.media-row,.service-map,.article-list{grid-template-columns:1fr}
      .hero-main,.hero-side,.section,.formwrap{padding:20px}
      .hero-stats{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:flex-start}
      table{min-width:680px}
    }
    .reveal{opacity:0;transform:translateY(14px);transition:.55s ease}
    .reveal.in{opacity:1;transform:none}
    .mini-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
    .mini-links a{padding:8px 11px;border-radius:10px;background:#f2f7ff;border:1px solid #dbe7fb;color:#204568;font-size:13px}