:root{
      --bg:#f4f8fb;
      --card:#ffffff;
      --card2:#f8fbfe;
      --line:#dbe7ef;
      --text:#163042;
      --muted:#607180;
      --primary:#16a6b6;
      --primary2:#2f7de1;
      --accent:#0f8ca0;
      --shadow:0 18px 50px rgba(21,74,102,.10);
      --shadow2:0 10px 28px rgba(21,74,102,.08);
      --radius:22px;
      --radius2:16px;
      --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;background:
      radial-gradient(circle at top left, rgba(22,166,182,.10), transparent 24%),
      radial-gradient(circle at top right, rgba(47,125,225,.10), transparent 24%),
      linear-gradient(180deg,#f8fcff 0%, #f3f8fb 100%);
      color:var(--text);line-height:1.65}
    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;background:rgba(248,252,255,.82);backdrop-filter:saturate(1.2) blur(14px);border-bottom:1px solid rgba(219,231,239,.75)}
    .header-inner{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:12px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow2)}
    .brand-text{min-width:0}
    .brand-text strong{display:block;font-size:16px;letter-spacing:.4px}
    .brand-text span{display:block;font-size:12px;color:var(--muted)}
    .nav-toggle{display:none;border:1px solid var(--line);background:#fff;color:var(--text);border-radius:12px;padding:10px 12px;font-size:14px}
    .nav{display:flex;align-items:center;gap:16px;flex-wrap:wrap;justify-content:flex-end}
    .nav a{font-size:14px;color:var(--muted);padding:8px 10px;border-radius:10px;transition:.25s}
    .nav a:hover,.nav a:focus{background:rgba(22,166,182,.10);color:var(--text)}
    .top-cta{display:flex;align-items:center;gap:10px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:14px;padding:12px 16px;font-weight:700;transition:.25s;cursor:pointer;white-space:nowrap}
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;box-shadow:0 12px 28px rgba(47,125,225,.22)}
    .btn-secondary{background:#fff;color:var(--text);border-color:var(--line)}
    .btn:hover{transform:translateY(-2px);box-shadow:var(--shadow2)}
    .hero{padding:42px 0 18px}
    .hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:stretch}
    .hero-main,.hero-side,.section-card{background:linear-gradient(180deg,rgba(255,255,255,.96),rgba(248,251,254,.94));border:1px solid rgba(219,231,239,.92);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:50%;pointer-events:none}
    .hero-main:before{width:240px;height:240px;background:radial-gradient(circle, rgba(22,166,182,.16), transparent 70%);right:-80px;top:-70px}
    .hero-main:after{width:180px;height:180px;background:radial-gradient(circle, rgba(47,125,225,.14), transparent 70%);right:70px;bottom:-90px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:rgba(22,166,182,.10);color:#0f6874;font-size:13px;font-weight:700}
    h1{font-size:clamp(32px,5vw,56px);line-height:1.08;margin:16px 0 14px;letter-spacing:-.5px}
    .hero p{margin:0;color:var(--muted);font-size:16px;max-width:56ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .hero-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:26px}
    .mini-stat{padding:14px 15px;background:#fff;border:1px solid var(--line);border-radius:16px}
    .mini-stat strong{display:block;font-size:20px}
    .mini-stat span{display:block;color:var(--muted);font-size:13px}
    .hero-side{padding:22px}
    .side-badge{display:flex;align-items:center;justify-content:space-between;gap:10px;background:linear-gradient(135deg, rgba(22,166,182,.10), rgba(47,125,225,.09));border:1px solid rgba(22,166,182,.16);border-radius:18px;padding:14px 16px;margin-bottom:14px}
    .side-badge strong{font-size:15px}
    .side-badge span{display:block;color:var(--muted);font-size:13px}
    .side-list{display:grid;gap:10px;margin:14px 0 18px}
    .side-list div{display:flex;gap:10px;align-items:flex-start;padding:12px 12px;background:#fff;border:1px solid var(--line);border-radius:14px}
    .dot{width:10px;height:10px;border-radius:50%;margin-top:6px;background:linear-gradient(135deg,var(--primary),var(--primary2));flex:none}
    .side-list strong{display:block;font-size:14px}
    .side-list span{display:block;color:var(--muted);font-size:13px}
    section{padding:18px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:14px}
    .section-head h2{margin:0;font-size:28px;line-height:1.2}
    .section-head p{margin:0;color:var(--muted);max-width:66ch}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .card{background:linear-gradient(180deg,#fff,#fbfdff);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow2);padding:18px;transition:.25s}
    .card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .card h3{margin:10px 0 8px;font-size:18px}
    .card p{margin:0;color:var(--muted)}
    .icon-chip{width:42px;height:42px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg, rgba(22,166,182,.16), rgba(47,125,225,.14));color:#0f6d7d;font-weight:800}
    .pill-row{display:flex;flex-wrap:wrap;gap:10px}
    .pill{padding:10px 12px;background:#fff;border:1px solid var(--line);border-radius:999px;color:var(--text);font-size:14px}
    .feature-list{display:grid;gap:12px}
    .feature-list li{list-style:none;padding:14px 14px 14px 16px;border:1px solid var(--line);border-radius:16px;background:#fff}
    .feature-list strong{display:block;margin-bottom:4px}
    .process{counter-reset:step}
    .process .card{position:relative;padding-left:52px}
    .process .card:before{counter-increment:step;content:counter(step);position:absolute;left:18px;top:18px;width:24px;height:24px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}
    .table-wrap{overflow:auto;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:var(--shadow2)}
    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}
    th{background:#f3f9fc;color:#0f4d59;font-size:14px}
    td{color:var(--text);font-size:14px}
    .scorebox{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .score{padding:20px;border-radius:18px;background:linear-gradient(135deg,#0f9fb1,#2f7de1);color:#fff}
    .score strong{display:block;font-size:32px;line-height:1}
    .score span{display:block;margin-top:8px;opacity:.92}
    .compare-note{padding:18px;border-radius:18px;background:linear-gradient(180deg, rgba(22,166,182,.08), rgba(47,125,225,.06));border:1px solid rgba(22,166,182,.16)}
    .tags{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:var(--text)}
    .timeline{display:grid;gap:12px}
    .timeline .item{display:grid;grid-template-columns:88px 1fr;gap:14px;padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:16px}
    .timeline .time{font-weight:800;color:#0f6874}
    .review{display:grid;gap:12px}
    .review .meta{display:flex;justify-content:space-between;gap:10px;align-items:center}
    .stars{color:#f59e0b;letter-spacing:1px;font-size:15px}
    .faq{display:grid;gap:10px}
    details{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow2);overflow:hidden}
    summary{cursor:pointer;list-style:none;padding:16px 18px;font-weight:700}
    summary::-webkit-details-marker{display:none}
    details p{padding:0 18px 16px;margin:0;color:var(--muted)}
    .article-list{display:grid;gap:12px}
    .article-item{display:flex;justify-content:space-between;gap:14px;padding:15px 16px;background:#fff;border:1px solid var(--line);border-radius:16px;align-items:center}
    .article-item span{color:var(--muted);font-size:13px}
    .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);background:#fff;border-radius:14px;padding:12px 14px;font:inherit;color:var(--text);outline:none;transition:.2s}
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:rgba(22,166,182,.8);box-shadow:0 0 0 4px rgba(22,166,182,.10)}
    .form-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:6px}
    .contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:14px}
    .contact-box{background:linear-gradient(180deg,#fff,#f9fcfe);border:1px solid var(--line);border-radius:18px;padding:18px}
    .qr{display:flex;align-items:center;gap:14px}
    .qr img{width:128px;height:128px;object-fit:cover;border-radius:16px;border:1px solid var(--line);background:#fff}
    .footer{padding:22px 0 32px}
    footer .footer-inner{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:var(--shadow2)}
    .footer-top{display:flex;justify-content:space-between;gap:16px;align-items:flex-start}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
    .footer-links a{padding:8px 10px;border:1px solid var(--line);border-radius:999px;background:#f9fcfe;color:var(--text);font-size:13px}
    .copyright{margin-top:16px;color:var(--muted);font-size:13px}
    .floating{position:fixed;right:16px;bottom:18px;z-index:60;display:grid;gap:10px}
    .floating a,.floating button{width:48px;height:48px;border-radius:16px;border:1px solid rgba(219,231,239,.95);background:#fff;box-shadow:var(--shadow2);display:flex;align-items:center;justify-content:center;color:var(--text);cursor:pointer}
    .floating a:hover,.floating button:hover{transform:translateY(-2px)}
    .backtop{display:none}
    .scroll-in{opacity:0;transform:translateY(18px);transition:.65s ease}
    .scroll-in.visible{opacity:1;transform:none}
    .mobile-nav{display:none}
    @media (max-width: 1024px){
      .hero-grid,.grid-4,.grid-3,.grid-2,.contact-grid{grid-template-columns:1fr}
      .hero-points{grid-template-columns:1fr}
      .scorebox{grid-template-columns:1fr}
      .section-head,.footer-top{flex-direction:column;align-items:flex-start}
    }
    @media (max-width: 768px){
      .nav-toggle{display:inline-flex}
      .nav{display:none;position:absolute;left:16px;right:16px;top:68px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav.open{display:flex}
      .top-cta{display:none}
      .header-inner{position:relative}
      .hero{padding-top:22px}
      .hero-main{padding:24px}
      h1{font-size:clamp(28px,9vw,42px)}
      .form-grid,.timeline .item{grid-template-columns:1fr}
      .article-item{flex-direction:column;align-items:flex-start}
      .qr{flex-direction:column;align-items:flex-start}
      .floating{right:12px;bottom:12px}
    }