:root{
      --bg:#f6fbfb;
      --panel:#ffffff;
      --panel-2:#edf8f8;
      --text:#17313a;
      --muted:#5a6c74;
      --line:#d7e7e7;
      --primary:#0b8ea8;
      --primary-2:#1dc0b8;
      --accent:#0f6bcb;
      --shadow:0 18px 50px rgba(14, 79, 93, .10);
      --radius:20px;
      --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(29,192,184,.16), transparent 28%),
        radial-gradient(circle at top right, rgba(15,107,203,.10), transparent 26%),
        linear-gradient(180deg, #f8fcfc 0%, #f4f9f9 42%, #f7fbfb 100%);
    }
    a{color:var(--accent);text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(100% - 32px, var(--container));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:50;
      backdrop-filter: blur(14px);
      background:rgba(246,251,251,.82);
      border-bottom:1px solid rgba(215,231,231,.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:42px;height:42px;object-fit:contain;border-radius:10px;background:#fff;border:1px solid var(--line);padding:4px}
    .brand h2{margin:0;font-size:18px;line-height:1.1}
    .brand p{margin:3px 0 0;color:var(--muted);font-size:12px}
    .nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;color:var(--text)}
    .nav{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:flex-end}
    .nav a{color:var(--text);font-size:14px;padding:8px 10px;border-radius:10px}
    .nav a:hover,.nav a:focus{background:#e9f7f7}
    .nav .home-link{font-weight:700;color:#0b7285}
    .hero{
      padding:56px 0 28px;
      position:relative;
      overflow:hidden;
    }
    .hero::before,.hero::after{
      content:"";
      position:absolute;border-radius:50%;
      filter:blur(10px);pointer-events:none;
    }
    .hero::before{width:260px;height:260px;background:rgba(29,192,184,.16);right:-80px;top:0}
    .hero::after{width:220px;height:220px;background:rgba(15,107,203,.10);left:-80px;bottom:10px}
    .hero-grid{
      display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:stretch;
    }
    .hero-card,.glass-card,.section-card,.feature-card,.review-card,.faq-item,.article-card,.price-card,.compare-card,.support-card,.form-card{
      background:rgba(255,255,255,.84);
      border:1px solid rgba(215,231,231,.95);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .hero-card{padding:32px}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 12px;border-radius:999px;background:#e6f8f7;color:#0b7285;
      font-size:13px;font-weight:700;
    }
    h1{margin:16px 0 14px;font-size:clamp(30px,4vw,48px);line-height:1.08;letter-spacing:-.02em}
    .hero p{margin:0;color:var(--muted);line-height:1.8;font-size:16px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:none;border-radius:14px;padding:13px 18px;
      font-weight:700;font-size:15px;cursor:pointer;transition:.25s ease;
    }
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 12px 24px rgba(11,142,168,.22)}
    .btn-secondary{background:#fff;color:var(--text);border:1px solid var(--line)}
    .btn:hover{transform:translateY(-2px)}
    .hero-side{display:grid;gap:14px}
    .hero-stat{
      padding:18px 18px 16px;background:linear-gradient(180deg,#ffffff,#f3fbfb);
      border:1px solid var(--line);border-radius:18px;
    }
    .hero-stat strong{display:block;font-size:28px;color:#0c6f82}
    .hero-stat span{color:var(--muted);font-size:13px}
    .hero-mini{
      padding:18px;border:1px dashed #bfe2e2;border-radius:18px;background:#fafdff;
    }
    .mini-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
    .tag{padding:7px 10px;border-radius:999px;background:#edf8f8;color:#155f70;font-size:13px}
    .metrics{padding:10px 0 8px}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .metric{padding:18px}
    .metric strong{display:block;font-size:26px;margin-bottom:8px;color:#0c6f82}
    .metric span{color:var(--muted);font-size:14px}
    section{padding:18px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:28px}
    .section-head p{margin:0;color:var(--muted);max-width:720px;line-height:1.75}
    .section-card{padding:24px}
    .about-grid,.service-grid,.scenario-grid,.review-grid,.news-grid,.support-grid,.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .about-lead{grid-column:span 2;padding:22px;background:linear-gradient(135deg,#f7fdfd,#eef8ff);border-radius:18px;border:1px solid var(--line)}
    .about-lead h3,.feature-card h3,.support-card h3,.compare-card h3,.price-card h3,.article-card h3,.review-card h3{margin:0 0 10px;font-size:18px}
    .about-lead p,.feature-card p,.support-card p,.article-card p,.review-card p,.faq-item p,.compare-card p{margin:0;color:var(--muted);line-height:1.8}
    .bullets{display:grid;gap:10px;margin:14px 0 0;padding:0;list-style:none}
    .bullets li{display:flex;gap:10px;color:var(--text);line-height:1.7}
    .bullets li::before{content:"";width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-2));margin-top:7px;flex:0 0 10px}
    .feature-card,.review-card,.support-card,.article-card,.price-card,.faq-item,.compare-card{padding:18px}
    .feature-card{min-height:100%}
    .feature-top{display:flex;align-items:center;gap:12px;margin-bottom:10px}
    .icon{
      width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
      background:linear-gradient(135deg,#0d95b2,#1cc0b8);color:#fff;font-weight:800
    }
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:18px;border-radius:18px;background:#fff;border:1px solid var(--line);position:relative}
    .step .num{font-weight:800;color:#0d95b2;font-size:13px}
    .step h3{margin:10px 0 8px;font-size:17px}
    .step p{margin:0;color:var(--muted);line-height:1.7}
    .table-wrap{overflow-x:auto;border-radius:18px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:14px 16px;border-bottom:1px solid #e5eeee;text-align:left;vertical-align:top}
    th{background:#f4fbfb;color:#17313a;font-size:14px}
    td{color:#355059;font-size:14px;line-height:1.7}
    .badge{display:inline-flex;padding:6px 10px;border-radius:999px;background:#e8faf8;color:#0f7f74;font-weight:700;font-size:12px}
    .compare-highlight{display:grid;grid-template-columns:1.1fr .9fr;gap:16px;align-items:start}
    .score-box{padding:24px;border-radius:18px;background:linear-gradient(135deg,#0c6f82,#16b8ae);color:#fff}
    .score-box strong{display:block;font-size:44px;line-height:1;margin:10px 0}
    .score-box p{margin:0;opacity:.95;line-height:1.8}
    .tags-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .price-card ul{margin:14px 0 0;padding:0;list-style:none;display:grid;gap:10px}
    .price-card li{display:flex;justify-content:space-between;gap:12px;padding-bottom:10px;border-bottom:1px dashed #e1ecec;color:#355059}
    .timeline{display:grid;gap:12px}
    .timeline-item{display:grid;grid-template-columns:84px 1fr;gap:16px;padding:16px;border-radius:16px;background:#fff;border:1px solid var(--line)}
    .timeline-item time{font-weight:800;color:#0c6f82}
    .form-card form{display:grid;gap:12px}
    .form-row{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    input,select,textarea{
      width:100%;border:1px solid #cfe3e3;background:#fff;color:var(--text);
      border-radius:14px;padding:13px 14px;font:inherit;outline:none;transition:.2s ease;
    }
    textarea{min-height:130px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#0d95b2;box-shadow:0 0 0 4px rgba(13,149,178,.10)}
    .faq-list{display:grid;gap:12px}
    .faq-item summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:14px;font-weight:700}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary::after{content:"＋";color:#0d95b2;font-weight:800}
    .faq-item[open] summary::after{content:"－"}
    .faq-item p{padding-top:12px}
    .review-grid{grid-template-columns:repeat(2,1fr)}
    .review-card small{display:block;color:#0d95b2;font-weight:700;margin-bottom:8px}
    .news-grid{grid-template-columns:repeat(3,1fr)}
    .article-card .meta{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:13px;margin-bottom:10px}
    .service-map{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .node{padding:16px;border-radius:16px;background:#f8fdfd;border:1px solid var(--line)}
    .node strong{display:block;margin-bottom:8px}
    .floating{
      position:fixed;right:16px;bottom:18px;z-index:60;display:grid;gap:10px
    }
    .float-btn{
      width:52px;height:52px;border-radius:16px;display:grid;place-items:center;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;
      box-shadow:0 12px 30px rgba(11,142,168,.28)
    }
    .footer{
      margin-top:16px;padding:26px 0 22px;background:#0d2f38;color:#d9f3f4;
    }
    .footer a{color:#9fe9f0}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:18px}
    .footer h3{margin:0 0 10px;color:#fff}
    .footer p,.footer li{color:#c7e5e7;line-height:1.8}
    .footer ul{margin:0;padding:0;list-style:none;display:grid;gap:8px}
    .copyright{margin-top:18px;padding-top:14px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:#b9d8db}
    .flex-actions{display:flex;gap:10px;flex-wrap:wrap}
    .kefu-card{display:grid;grid-template-columns:110px 1fr;gap:14px;align-items:center}
    .kefu-card img{width:110px;height:110px;object-fit:cover;border-radius:16px;border:1px solid var(--line);background:#fff}
    .showcase-imgs{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .showcase-imgs img{width:100%;height:auto;border-radius:16px;border:1px solid var(--line);background:#fff}
    .center-note{padding:16px 18px;border-radius:16px;background:#f1fbfb;border:1px solid var(--line);color:#355059;line-height:1.75}
    .anchor-space{scroll-margin-top:92px}
    @media (max-width: 1024px){
      .hero-grid,.grid-4,.about-grid,.service-grid,.scenario-grid,.steps,.price-grid,.service-map,.news-grid,.contact-grid,.footer-grid,.compare-highlight{grid-template-columns:1fr}
      .review-grid{grid-template-columns:1fr}
      .about-lead{grid-column:auto}
      .nav-toggle{display:inline-flex}
      .nav{display:none;width:100%;padding:10px 0 0;justify-content:flex-start}
      .nav.open{display:flex}
      .topbar{flex-wrap:wrap}
      .form-row{grid-template-columns:1fr}
      .showcase-imgs{grid-template-columns:1fr}
      .kefu-card{grid-template-columns:1fr}
    }
    @media (max-width: 640px){
      .hero{padding-top:28px}
      .hero-card{padding:22px}
      .section-head{flex-direction:column;align-items:flex-start}
      .section-card{padding:18px}
      .timeline-item{grid-template-columns:1fr}
      .floating{right:12px;bottom:12px}
      .float-btn{width:48px;height:48px}
    }
    .reveal{opacity:0;transform:translateY(14px);transition:all .65s ease}
    .reveal.show{opacity:1;transform:none}