:root{--bg:#f7f5f0;--card:#ffffff;--ink:#1f2a37;--muted:#5d6b7d;--line:#e7dfd3;--brand:#3566ff;--brand2:#ff7a59;--brand3:#7c5cff;--shadow:0 18px 40px rgba(35,45,65,.08);--radius:22px}
    *{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,#fff7ea 0,#f7f5f0 35%,#eef5ff 100%);color:var(--ink)}
    a{color:inherit;text-decoration:none} img{display:block;max-width:100%}
    .container{width:min(1180px,calc(100% - 32px));margin:0 auto}
    header{position:sticky;top:0;z-index:50;background:rgba(247,245,240,.84);backdrop-filter:blur(16px);border-bottom:1px solid rgba(231,223,211,.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 .name{font-weight:800;letter-spacing:.5px}
    .brand .sub{font-size:12px;color:var(--muted)}
    .menu{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:flex-end}
    .menu a{font-size:14px;color:#304256;padding:8px 10px;border-radius:999px;transition:.2s}
    .menu a:hover,.menu a:focus-visible{background:#eef3ff;color:#2342a5}
    .nav-cta{display:flex;gap:10px;align-items:center}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:999px;padding:12px 18px;font-weight:700;transition:.22s ease;cursor:pointer}
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand3));color:#fff;box-shadow:0 12px 24px rgba(53,102,255,.24)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 28px rgba(53,102,255,.28)}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
    .btn-ghost:hover{transform:translateY(-2px);border-color:#c9d5ff}
    .burger{display:none;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px 12px}
    main{padding-bottom:10px}
    section{padding:58px 0}
    .hero{padding:34px 0 34px}
    .hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:24px;align-items:stretch}
    .hero-copy,.hero-panel,.card,.panel,.faq-item,.review,.article,.timeline li,.price,.compare,.formbox,.network,.contact-card{background:rgba(255,255,255,.86);border:1px solid rgba(231,223,211,.92);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-copy{padding:34px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#eef3ff;color:#2741a0;font-size:13px;font-weight:700}
    h1{margin:16px 0 14px;font-size:clamp(32px,5vw,58px);line-height:1.06}
    .lead{color:var(--muted);font-size:16px;line-height:1.85;max-width:62ch}
    .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{padding:14px;border-radius:18px;background:linear-gradient(180deg,#fff,#fbfaf7);border:1px solid var(--line)}
    .mini strong{display:block;font-size:18px}
    .mini span{display:block;font-size:13px;color:var(--muted);margin-top:4px;line-height:1.55}
    .hero-panel{padding:22px;position:relative;overflow:hidden}
    .hero-panel:before,.hero-panel:after{content:"";position:absolute;border-radius:50%;filter:blur(8px);opacity:.48}
    .hero-panel:before{width:140px;height:140px;background:#ffe3cc;top:-20px;right:-20px}
    .hero-panel:after{width:180px;height:180px;background:#dfe8ff;bottom:-50px;left:-40px}
    .panel-inner{position:relative;z-index:1}
    .stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .stat{padding:18px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .stat .num{font-size:28px;font-weight:900;color:#18306b}
    .stat .txt{font-size:13px;color:var(--muted);line-height:1.5}
    .section-title{display:flex;justify-content:space-between;gap:16px;align-items:end;margin-bottom:18px}
    .section-title h2{margin:0;font-size:clamp(24px,3vw,36px)}
    .section-title p{margin:0;color:var(--muted);max-width:66ch;line-height:1.75}
    .grid-3,.grid-4{display:grid;gap:16px}
    .grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
    .grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
    .card{padding:22px}
    .card h3{margin:10px 0 8px;font-size:18px}
    .card p,.card li{color:var(--muted);line-height:1.7;font-size:14px}
    .tagcloud{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:#405068}
    .steps{counter-reset:s}
    .step{position:relative;padding-top:34px}
    .step:before{counter-increment:s;content:counter(s);position:absolute;top:0;left:0;width:26px;height:26px;border-radius:999px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;font-weight:800;display:grid;place-items:center;font-size:13px}
    .compare-wrap{overflow:auto;border-radius:24px}
    table{width:100%;border-collapse:collapse;min-width:860px;background:#fff}
    th,td{padding:16px 14px;border-bottom:1px solid var(--line);text-align:left;font-size:14px;vertical-align:top}
    th{background:#f7f9ff;color:#23395b}
    .rating{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-weight:700}
    .star{color:#ff9f1a}
    details{border-top:1px solid var(--line);padding:16px 0}
    details:first-child{border-top:none}
    summary{cursor:pointer;font-weight:700;list-style:none}
    summary::-webkit-details-marker{display:none}
    .faq-item p{margin:10px 0 0;color:var(--muted);line-height:1.75}
    .review{padding:20px}
    .review .who{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:10px}
    .avatar{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,#eef3ff,#fff1e8);display:grid;place-items:center;font-weight:800;color:#2c4dab}
    .article,.network,.price,.contact-card{padding:18px}
    .article h3,.price h3,.network h3,.contact-card h3{margin:10px 0 8px}
    .article small,.meta{color:var(--muted)}
    .timeline{list-style:none;padding:0;margin:0;display:grid;gap:12px}
    .timeline li{padding:16px 18px}
    .timeline strong{display:block;margin-bottom:6px}
    .formbox{padding:22px}
    form{display:grid;gap:14px}
    .field{display:grid;gap:8px}
    label{font-size:14px;font-weight:700;color:#334155}
    input,select,textarea{width:100%;padding:13px 14px;border:1px solid #d8e0ea;border-radius:14px;background:#fff;color:var(--ink);font:inherit;outline:none;transition:.2s}
    input:focus,select:focus,textarea:focus{border-color:#86a6ff;box-shadow:0 0 0 4px rgba(53,102,255,.12)}
    textarea{min-height:120px;resize:vertical}
    .footer{padding:28px 0 36px;border-top:1px solid rgba(231,223,211,.95);background:#f6f3ec;color:#243041}
    .footer a{color:#24488d}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .9fr;gap:18px}
    .muted{color:var(--muted);line-height:1.8}
    .floating{position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px}
    .float-btn{width:52px;height:52px;border-radius:18px;background:linear-gradient(135deg,var(--brand),var(--brand3));color:#fff;display:grid;place-items:center;box-shadow:0 16px 32px rgba(53,102,255,.28)}
    .float-btn.secondary{background:#fff;color:#22406e;border:1px solid var(--line)}
    .mobile-menu{display:none}
    .service-badges{display:flex;flex-wrap:wrap;gap:10px}
    .badge{padding:8px 10px;background:#fff;border:1px solid var(--line);border-radius:999px;font-size:13px;color:#41536b}
    .scroll-animate{opacity:0;transform:translateY(14px);transition:.6s ease}
    .scroll-animate.in{opacity:1;transform:none}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-4,.footer-grid{grid-template-columns:1fr}
      .hero-points{grid-template-columns:1fr}
      .menu{display:none}
      .burger{display:inline-flex}
      .mobile-menu{display:none;padding:0 0 16px}
      .mobile-menu.open{display:block}
      .mobile-menu a{display:block;padding:10px 0;color:#304256;border-bottom:1px solid rgba(231,223,211,.7)}
      .nav-cta{display:none}
    }