:root{
      --bg:#f7f4ff;
      --bg2:#ffffff;
      --card:#ffffff;
      --text:#1f2430;
      --muted:#5f6778;
      --line:#e5def8;
      --primary:#7a3cff;
      --primary2:#b24cff;
      --accent:#ff7ad9;
      --shadow:0 18px 50px rgba(83, 52, 166, .12);
      --radius:22px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:radial-gradient(circle at top left, rgba(178,76,255,.12), transparent 28%), radial-gradient(circle at 85% 10%, rgba(122,60,255,.10), transparent 26%), linear-gradient(180deg,#fbf9ff 0%, #f5f1ff 38%, #f8f9ff 100%);}
    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:20;background:rgba(255,255,255,.82);backdrop-filter:blur(14px);border-bottom:1px solid rgba(229,222,248,.8)}
    .nav{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px}
    .brand{display:flex;align-items:center;gap:12px;font-weight:800}
    .brand .name{font-size:1.08rem;letter-spacing:.5px}
    .brand img{width:42px;height:42px;object-fit:contain}
    .menu{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
    .menu a{font-size:.94rem;color:var(--muted);padding:8px 0}
    .menu a:hover{color:var(--primary)}
    .nav-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:999px;padding:12px 18px;font-weight:700;transition:.25s ease;cursor:pointer}
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;box-shadow:0 12px 24px rgba(122,60,255,.22)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 30px rgba(122,60,255,.28)}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
    .burger{display:none;background:#fff;border:1px solid var(--line);width:44px;height:44px;border-radius:14px}
    .hero{padding:34px 0 18px}
    .hero-wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch}
    .hero-main,.hero-side,.section-card,.mini-card,.testimonial,.faq-item,.step,.price-box,.article,.contact-box,.compare-card,.service-card,.case-card,.network-card,.value-card{background:rgba(255,255,255,.92);border:1px solid rgba(229,222,248,.92);box-shadow:var(--shadow);border-radius:var(--radius)}
    .hero-main{padding:30px;position:relative;overflow:hidden}
    .hero-main:before{content:"";position:absolute;inset:auto -60px -70px auto;width:220px;height:220px;background:radial-gradient(circle, rgba(255,122,217,.22), transparent 65%)}
    .kicker{display:inline-flex;align-items:center;gap:8px;background:#f2ebff;color:var(--primary);border:1px solid #e5d9ff;padding:8px 14px;border-radius:999px;font-weight:700;font-size:.9rem}
    h1{margin:16px 0 12px;font-size:clamp(2rem,4.8vw,3.8rem);line-height:1.08}
    .lead{margin:0;color:var(--muted);font-size:1.05rem;line-height:1.8;max-width:62ch}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:22px 0 18px}
    .trust-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
    .chip{padding:9px 12px;border-radius:999px;background:#faf7ff;border:1px solid var(--line);color:#4c5568;font-size:.92rem}
    .hero-side{padding:24px;display:grid;gap:14px}
    .hero-panel{padding:18px;border-radius:18px;background:linear-gradient(135deg, rgba(122,60,255,.08), rgba(255,122,217,.08));border:1px solid rgba(122,60,255,.12)}
    .hero-panel h3{margin:0 0 8px;font-size:1.05rem}
    .hero-panel p{margin:0;color:var(--muted);line-height:1.7}
    .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:18px 0 4px}
    .stat{padding:18px}
    .stat strong{display:block;font-size:1.4rem}
    .stat span{color:var(--muted);font-size:.92rem}
    section{padding:18px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:12px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:clamp(1.35rem,2.5vw,2rem)}
    .section-head p{margin:0;color:var(--muted);max-width:66ch;line-height:1.7}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .section-card,.service-card,.case-card,.network-card,.compare-card,.value-card{padding:20px}
    .service-card h3,.case-card h3,.network-card h3,.compare-card h3,.value-card h3{margin:0 0 8px}
    .service-card p,.case-card p,.network-card p,.compare-card p,.value-card p,.article p{margin:0;color:var(--muted);line-height:1.75}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud a,.tag-cloud span{padding:10px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#445}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .step{padding:20px;position:relative}
    .step b{display:inline-flex;width:34px;height:34px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;align-items:center;justify-content:center;margin-bottom:12px}
    .table-wrap{overflow:auto;border-radius:18px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:14px 16px;border-bottom:1px solid #eee;text-align:left;vertical-align:top}
    th{background:#fbf8ff;color:#2a2342}
    td{color:#445}
    .badge{display:inline-flex;align-items:center;padding:7px 12px;border-radius:999px;background:#f6efff;color:var(--primary);font-weight:700}
    .columns{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}
    .list{display:grid;gap:10px;margin:12px 0 0;padding:0;list-style:none}
    .list li{display:flex;gap:10px;align-items:flex-start;color:#445;line-height:1.7}
    .list li:before{content:"";flex:0 0 8px;width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));margin-top:.7em}
    .reviews,.articles,.cases,.network{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .testimonial .meta{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
    .stars{color:#ffab00;letter-spacing:1px}
    .faq{display:grid;gap:12px}
    .faq-item summary{list-style:none;cursor:pointer;padding:18px 20px;font-weight:700}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item .answer{padding:0 20px 18px;color:var(--muted);line-height:1.75}
    .article .date{font-size:.88rem;color:var(--primary);font-weight:700;margin-bottom:8px}
    .contact-wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}
    form{display:grid;gap:12px}
    .field{display:grid;gap:8px}
    label{font-weight:700;font-size:.95rem}
    input,select,textarea{width:100%;border:1px solid #ddd8ef;border-radius:14px;padding:13px 14px;font:inherit;color:var(--text);background:#fff;outline:none}
    input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(122,60,255,.1)}
    textarea{min-height:120px;resize:vertical}
    .footer{padding:22px 0 26px}
    footer{background:#17132a;color:#e8e3ff;margin-top:12px}
    footer a{color:#f0ddff}
    footer .container{padding-top:24px;padding-bottom:20px}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:18px}
    .footer small,.footer p{color:#c9c1ea;line-height:1.8}
    .copyright{margin-top:18px;padding-top:16px;border-top:1px solid rgba(255,255,255,.12);color:#c8bfdc;font-size:.92rem}
    .float-tools{position:fixed;right:16px;bottom:16px;z-index:30;display:grid;gap:10px}
    .float-tools a,.float-tools button{width:48px;height:48px;border-radius:16px;border:1px solid rgba(229,222,248,.9);background:#fff;box-shadow:var(--shadow);display:grid;place-items:center;cursor:pointer}
    .topbar-note{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;color:#5d6474;font-size:.92rem}
    .reveal{opacity:0;transform:translateY(18px);transition:.65s ease}
    .reveal.show{opacity:1;transform:none}
    .mobile-menu{display:none}
    .contact-card{display:grid;gap:12px}
    .qr{display:flex;align-items:center;gap:14px}
    .qr img{width:104px;height:104px;object-fit:cover;border-radius:16px;border:1px solid var(--line)}
    .mini-card{padding:16px}
    .price-box{padding:18px}
    .price-box strong{font-size:1.4rem}
    .note{color:var(--muted);font-size:.92rem;line-height:1.7}
    @media (max-width: 980px){
      .hero-wrap,.columns,.contact-wrap,.footer-grid,.grid-4,.grid-3,.reviews,.articles,.cases,.network,.steps{grid-template-columns:1fr 1fr}
      .stats{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width: 760px){
      .menu,.nav-cta .btn-ghost{display:none}
      .burger{display:inline-grid;place-items:center}
      .mobile-menu{display:none;padding:0 0 16px}
      .mobile-menu.open{display:grid;gap:10px}
      .mobile-menu a{padding:12px 14px;border:1px solid var(--line);border-radius:14px;background:#fff;color:#334}
      .hero-wrap,.columns,.contact-wrap,.footer-grid,.grid-4,.grid-3,.reviews,.articles,.cases,.network,.steps{grid-template-columns:1fr}
      .hero-main,.hero-side{padding:20px}
      .stats{grid-template-columns:1fr 1fr}
      .section-head{align-items:flex-start;flex-direction:column}
    }