:root{--bg:#f5f8fc;--bg2:#eef7fb;--card:#ffffff;--line:#d9e6ef;--text:#1f2a37;--muted:#5b6b7d;--brand:#0f8ea8;--brand2:#2c7be5;--accent:#19c2b1;--shadow:0 18px 50px rgba(18,52,86,.08);--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;background:linear-gradient(180deg,var(--bg) 0%,#fff 38%,var(--bg2) 100%);color:var(--text);line-height:1.7}
    a{color:inherit;text-decoration:none} img{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 32px));margin:0 auto}
    header{position:sticky;top:0;z-index:30;background:rgba(245,248,252,.86);backdrop-filter:blur(14px);border-bottom:1px solid rgba(217,230,239,.7)}
    .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:42px;height:42px;object-fit:contain}
    .brand strong{font-size:18px;letter-spacing:.5px}
    .brand span{display:block;font-size:12px;color:var(--muted)}
    .nav-links{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:flex-end}
    .nav-links a{padding:9px 12px;border-radius:999px;color:#223041;font-size:14px;transition:.2s ease;background:transparent}
    .nav-links a:hover,.nav-links a.active{background:#e7f5fb;color:#0d6d82}
    .menu-btn{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;color:var(--text)}
    .hero{padding:42px 0 26px;position:relative;overflow:hidden}
    .hero::before,.hero::after{content:"";position:absolute;border-radius:999px;filter:blur(10px);opacity:.7;pointer-events:none}
    .hero::before{width:280px;height:280px;background:radial-gradient(circle,rgba(25,194,177,.16),transparent 62%);top:-70px;right:-60px}
    .hero::after{width:220px;height:220px;background:radial-gradient(circle,rgba(44,123,229,.14),transparent 65%);left:-80px;bottom:-60px}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px;align-items:stretch;position:relative;z-index:1}
    .hero-main,.hero-side,.panel,.card,.faq-item,.review,.article,.timeline li,.price-box,.compare,.contact,.footer-card{background:var(--card);border:1px solid rgba(217,230,239,.9);box-shadow:var(--shadow)}
    .hero-main{border-radius:28px;padding:30px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:#e8f8f6;color:#0d766f;font-weight:600;font-size:13px}
    h1{margin:16px 0 12px;font-size:clamp(30px,4vw,54px);line-height:1.08;letter-spacing:-.02em}
    .hero p{margin:0;color:var(--muted);font-size:16px;max-width:58ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0 18px}
    .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;transition:.2s ease}
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 12px 26px rgba(15,142,168,.22)}
    .btn-outline{background:#fff;border-color:var(--line);color:#173042}
    .btn:hover{transform:translateY(-1px)}
    .hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:16px}
    .stat{padding:16px;border-radius:18px;background:linear-gradient(180deg,#f8fcff,#edf7fb);border:1px solid #dcecf4}
    .stat strong{display:block;font-size:22px;color:#0d6d82}
    .stat span{font-size:13px;color:var(--muted)}
    .hero-side{border-radius:28px;padding:22px;display:grid;gap:14px;align-content:start}
    .mini-note{padding:16px;border-radius:18px;background:linear-gradient(180deg,#fff,#f4fbfe);border:1px solid #e0eef5}
    .mini-note h3{margin:0 0 8px;font-size:18px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:8px 12px;border-radius:999px;background:#eef8fb;border:1px solid #d7ebf2;color:#0d6f83;font-size:13px}
    section{padding:16px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:18px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:28px}
    .section-head p{margin:0;color:var(--muted);max-width:68ch}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .card,.panel,.compare,.contact,.footer-card,.faq-item,.review,.article,.price-box{border-radius:22px}
    .card{padding:22px}
    .card h3,.panel h3,.price-box h3{margin:0 0 10px;font-size:18px}
    .card p,.panel p,.review p,.article p{margin:0;color:var(--muted)}
    .icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,#e7f7fb,#eaf1ff);color:#0b7285;font-size:20px;margin-bottom:14px}
    .flow{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 b{display:inline-flex;width:28px;height:28px;align-items:center;justify-content:center;border-radius:999px;background:#dff5f1;color:#0d726d;margin-bottom:12px}
    .table-wrap{overflow:auto;border-radius:22px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:900px}
    th,td{padding:16px 14px;text-align:left;border-bottom:1px solid #edf2f6;vertical-align:top}
    th{background:#f4fbfd;color:#173042}
    .rating{font-weight:800;color:#0d6d82}
    .compare{padding:22px}
    .compare .summary{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}
    .summary-box{padding:18px;border-radius:18px;background:linear-gradient(180deg,#f7fcff,#eef8fb);border:1px solid #ddebf4}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review{padding:20px}
    .review .meta{display:flex;justify-content:space-between;gap:10px;margin-bottom:10px;color:var(--muted);font-size:13px}
    .stars{color:#f0b429;font-size:15px;letter-spacing:1px}
    .cases{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}
    .case-list{display:grid;gap:12px}
    .case-item{padding:16px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .articles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .article{padding:20px}
    .article time{display:block;color:#6b7c8d;font-size:13px;margin-bottom:10px}
    .price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .price-box{padding:22px;position:relative}
    .price{font-size:34px;font-weight:900;color:#0d6d82}
    .price small{font-size:14px;color:var(--muted);font-weight:600}
    .price-box ul{margin:14px 0 0;padding-left:18px;color:#334155}
    .timeline{list-style:none;padding:0;margin:0;display:grid;gap:12px}
    .timeline li{padding:16px 18px;border-radius:18px;background:#fff;border:1px solid var(--line);display:flex;gap:14px;align-items:flex-start}
    .timeline .dot{width:12px;height:12px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--accent));margin-top:7px;flex:0 0 auto}
    .faq{display:grid;gap:12px}
    .faq-item{overflow:hidden}
    .faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 20px;background:#fff;border:0;color:var(--text);font-size:16px;font-weight:700;text-align:left}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;padding:0 20px;color:var(--muted)}
    .faq-item.open .faq-a{max-height:160px;padding-bottom:18px}
    .form-wrap{display:grid;grid-template-columns:1fr .9fr;gap:16px}
    form{display:grid;gap:12px}
    .input-row{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    input,select,textarea{width:100%;padding:13px 14px;border-radius:14px;border:1px solid #d7e4ee;background:#fff;color:var(--text);font:inherit;outline:none}
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#7ccddd;box-shadow:0 0 0 4px rgba(25,194,177,.08)}
    .submit{padding:14px 18px;border-radius:14px;border:0;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;font-weight:800;cursor:pointer}
    .footer-top{padding:18px 0 28px}
    footer{background:#0f2230;color:#d8e6ef;margin-top:18px}
    footer a{color:#fff}
    .footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .footer-card{padding:22px;background:#102738;border-color:rgba(255,255,255,.07);box-shadow:none}
    .footer-card p,.footer-card li,.footer-card span{color:#c9d9e4}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.08)}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:14px 0;color:#b8c9d6;font-size:14px}
    .float-box{position:fixed;right:16px;bottom:16px;z-index:50;display:grid;gap:10px}
    .float-box a,.to-top{width:48px;height:48px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;box-shadow:0 12px 24px rgba(15,142,168,.26);border:0}
    .mobile-only{display:none}
    .scroll-reveal{opacity:0;transform:translateY(16px);transition:.55s ease}
    .scroll-reveal.in{opacity:1;transform:none}
    .list-cols{columns:2;column-gap:24px}
    .list-cols li{break-inside:avoid;margin:0 0 10px}
    .service-map{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
    .service-map div{padding:14px;border-radius:16px;background:#fff;border:1px solid var(--line)}
    @media (max-width: 1024px){
      .hero-grid,.grid-3,.grid-2,.reviews,.articles,.cases,.price-grid,.form-wrap,.footer-grid,.compare .summary,.grid-3,.flow{grid-template-columns:1fr}
      .service-map{grid-template-columns:repeat(2,1fr)}
      .nav-links{display:none}
      .menu-btn{display:inline-flex}
      .mobile-only{display:block}
    }
    @media (max-width: 640px){
      .container{width:min(var(--container),calc(100% - 24px))}
      .hero-main,.hero-side,.card,.panel,.compare,.contact,.footer-card{padding:18px}
      .hero-stats{grid-template-columns:1fr}
      .input-row,.service-map{grid-template-columns:1fr}
      h1{font-size:32px}
      .section-head{flex-direction:column;align-items:flex-start}
      .list-cols{columns:1}
    }