:root{
      --bg:#f6f7fb;
      --panel:#ffffff;
      --panel-2:#f2f5ff;
      --text:#1f2a37;
      --muted:#5b6575;
      --line:#d9e0ef;
      --primary:#5b67ff;
      --primary-2:#7c4dff;
      --accent:#ff6aa2;
      --good:#0f9d7a;
      --shadow:0 18px 50px rgba(39, 54, 122, .12);
      --shadow-soft:0 10px 24px rgba(39, 54, 122, .08);
      --radius:22px;
      --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;
      color:var(--text);
      background:
        radial-gradient(circle at 15% 10%, rgba(124,77,255,.12), transparent 30%),
        radial-gradient(circle at 85% 15%, rgba(91,103,255,.14), transparent 28%),
        linear-gradient(180deg,#fbfcff 0%,#f5f7fb 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    header{
      position:sticky;top:0;z-index:50;
      backdrop-filter:saturate(180%) blur(16px);
      background:rgba(246,247,251,.82);
      border-bottom:1px solid rgba(217,224,239,.75);
    }
    .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 .logo-box{width:44px;height:44px;border-radius:14px;background:#fff;border:1px solid var(--line);display:grid;place-items:center;box-shadow:var(--shadow-soft);overflow:hidden;flex:0 0 auto}
    .brand h2{margin:0;font-size:16px;line-height:1.2}
    .brand p{margin:3px 0 0;color:var(--muted);font-size:12px}
    .nav-wrap{display:flex;align-items:center;gap:14px}
    .menu-btn{display:none;border:1px solid var(--line);background:#fff;color:var(--text);border-radius:14px;padding:10px 12px;font-weight:700}
    nav ul{display:flex;flex-wrap:wrap;gap:10px;list-style:none;margin:0;padding:0;align-items:center;justify-content:flex-end}
    nav a{display:inline-flex;align-items:center;gap:6px;padding:9px 12px;border-radius:999px;color:var(--text);font-size:14px}
    nav a:hover{background:#eef2ff;color:#2f3dbd}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:14px;padding:12px 18px;font-weight:700;transition:.25s ease;cursor:pointer}
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 12px 26px rgba(91,103,255,.28)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(91,103,255,.34)}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-ghost:hover{transform:translateY(-2px);border-color:#b9c4e4}
    .hero{padding:28px 0 16px}
    .hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:stretch}
    .hero-card,.side-card,.panel,.info-card,.review,.faq-item,.news-card,.form-card,.compare-card,.service-card,.case-card,.timeline-card,.network-card,.price-card{
      background:rgba(255,255,255,.88);
      border:1px solid rgba(217,224,239,.9);
      border-radius:var(--radius);
      box-shadow:var(--shadow-soft);
    }
    .hero-card{padding:30px;position:relative;overflow:hidden}
    .hero-card:before,.hero-card:after{content:"";position:absolute;border-radius:999px;filter:blur(8px);opacity:.75}
    .hero-card:before{width:220px;height:220px;right:-70px;top:-60px;background:radial-gradient(circle, rgba(124,77,255,.18), transparent 64%)}
    .hero-card:after{width:180px;height:180px;left:-50px;bottom:-60px;background:radial-gradient(circle, rgba(255,106,162,.16), transparent 64%)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:rgba(91,103,255,.09);color:#3f4bcf;font-weight:700;font-size:13px}
    h1{margin:16px 0 14px;font-size:clamp(30px,5vw,52px);line-height:1.08;letter-spacing:-.03em}
    .lead{margin:0;color:var(--muted);font-size:16px;line-height:1.8;max-width:60ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}
    .point{padding:14px;border-radius:18px;background:linear-gradient(180deg,#fff, #f7f9ff);border:1px solid var(--line)}
    .point strong{display:block;font-size:18px}
    .point span{display:block;margin-top:6px;color:var(--muted);font-size:13px;line-height:1.5}
    .side-card{padding:22px;display:grid;gap:16px;align-content:start}
    .mini-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .stat{padding:16px;border-radius:18px;background:linear-gradient(180deg,#fbfcff,#f2f5ff);border:1px solid var(--line)}
    .stat b{display:block;font-size:24px;color:#24324a}
    .stat span{color:var(--muted);font-size:13px}
    section{padding:18px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:clamp(22px,3vw,32px)}
    .section-head p{margin:0;color:var(--muted);max-width:60ch;line-height:1.7}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .service-card,.case-card,.news-card,.review,.faq-item,.compare-card,.price-card,.timeline-card,.network-card,.form-card,.panel{padding:22px}
    .service-card h3,.case-card h3,.news-card h3,.review h3,.compare-card h3,.price-card h3,.timeline-card h3,.network-card h3{margin:0 0 10px;font-size:18px}
    .service-card p,.case-card p,.news-card p,.review p,.compare-card p,.price-card p,.timeline-card p,.network-card p,.form-card p{margin:0;color:var(--muted);line-height:1.75}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:9px 12px;border-radius:999px;background:#f4f7ff;border:1px solid var(--line);color:#40506f;font-size:13px}
    .process{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .step{padding:20px;border-radius:20px;background:linear-gradient(180deg,#fff,#f7f9ff);border:1px solid var(--line);position:relative}
    .step .num{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;font-weight:800;margin-bottom:12px}
    .step h3{margin:0 0 10px;font-size:17px}
    .table-wrap{overflow:auto;border-radius:20px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:15px 16px;text-align:left;border-bottom:1px solid #edf1f7;font-size:14px;vertical-align:top}
    th{background:#f5f7ff;color:#22304a;font-weight:800}
    tr:last-child td{border-bottom:none}
    .score-badge{display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border-radius:999px;background:rgba(15,157,122,.1);color:#0d7f63;font-weight:800}
    .compare-box{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}
    .review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review .role{margin-top:12px;color:#334155;font-weight:700}
    .stars{color:#f59e0b;font-size:18px;letter-spacing:2px}
    .faq-list{display:grid;gap:12px}
    .faq-item summary{list-style:none;cursor:pointer;font-weight:800;color:#24324a}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item .ans{padding-top:12px;color:var(--muted);line-height:1.75}
    .articles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .articles ul{margin:12px 0 0;padding:0;list-style:none;display:grid;gap:10px}
    .articles li a{color:#20304d}
    .articles li a:hover{color:#4e5bff}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .field{display:grid;gap:8px}
    label{font-size:13px;color:#32415f;font-weight:700}
    input,select,textarea{
      width:100%;padding:13px 14px;border-radius:14px;border:1px solid #d7deec;background:#fff;color:var(--text);font:inherit;outline:none;
    }
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#8a94ff;box-shadow:0 0 0 4px rgba(91,103,255,.12)}
    .form-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:12px}
    footer{
      margin-top:18px;
      padding:22px 0 28px;
      background:#eef2fb;
      color:#213047;
      border-top:1px solid #d9e0ef;
    }
    footer a{color:#27366b}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:16px;align-items:start}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line)}
    .small{font-size:13px;color:#60708a;line-height:1.7}
    .floating{position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px}
    .float-btn{
      display:inline-flex;align-items:center;justify-content:center;
      width:48px;height:48px;border-radius:16px;background:linear-gradient(135deg,var(--primary),var(--accent));
      color:#fff;box-shadow:0 14px 26px rgba(91,103,255,.28);border:none;cursor:pointer
    }
    .float-panel{
      position:fixed;right:16px;bottom:74px;z-index:61;width:min(320px, calc(100vw - 32px));
      background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);padding:16px;display:none
    }
    .float-panel.open{display:block}
    .kefu-box{display:grid;gap:12px;text-align:center}
    .kefu-box img{max-width:190px;margin:0 auto;border-radius:16px;border:1px solid var(--line)}
    .anchor{scroll-margin-top:92px}
    .reveal{opacity:0;transform:translateY(18px);transition:.6s ease}
    .reveal.in{opacity:1;transform:none}
    .banner-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .banner-row img,.case-media img,.side-media img{border-radius:18px;border:1px solid var(--line);box-shadow:var(--shadow-soft)}
    .case-media{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:14px}
    .inline-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
    .pill{padding:8px 11px;border-radius:999px;background:#f3f6ff;border:1px solid var(--line);font-size:13px}
    .network-list,.timeline-list{display:grid;gap:12px}
    .network-item,.timeline-item{padding:14px 15px;border-radius:16px;background:#f8faff;border:1px solid var(--line)}
    .network-item b,.timeline-item b{display:block;margin-bottom:5px}
    .mobile-only{display:none}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-2,.compare-box,.footer-grid,.articles,.review-grid,.process,.banner-row{grid-template-columns:1fr}
      .hero-points{grid-template-columns:1fr}
      .topbar{flex-wrap:wrap}
      .menu-btn{display:inline-flex}
      nav{display:none;width:100%}
      nav.open{display:block}
      nav ul{flex-direction:column;align-items:stretch}
      nav a{justify-content:center;background:#fff;border:1px solid var(--line)}
      .nav-wrap{width:100%;flex-wrap:wrap}
      .form-grid{grid-template-columns:1fr}
      .case-media{grid-template-columns:1fr}
      .mobile-only{display:inline-flex}
    }