:root{
      --bg:#f7f9fc;
      --bg2:#eef3fb;
      --card:#ffffff;
      --text:#152033;
      --muted:#5c667a;
      --line:#d8e0ee;
      --brand:#4f6cff;
      --brand2:#a855f7;
      --accent:#17c3b2;
      --warm:#ffb347;
      --shadow:0 18px 50px rgba(26,43,92,.10);
      --shadow2:0 10px 26px rgba(26,43,92,.08);
      --radius:20px;
      --radius2:14px;
      --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(1000px 500px at 10% -10%, rgba(79,108,255,.14), transparent 60%),
        radial-gradient(800px 420px at 90% 0%, rgba(168,85,247,.12), transparent 50%),
        linear-gradient(180deg, #f9fbff 0%, #f4f7fd 100%);
    }
    a{color:var(--brand);text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 32px));margin:0 auto}
    .topbar{position:sticky;top:0;z-index:50;background:rgba(248,250,255,.86);backdrop-filter:blur(14px);border-bottom:1px solid rgba(216,224,238,.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 img{width:42px;height:42px;object-fit:contain;border-radius:10px;background:#fff;padding:4px;box-shadow:var(--shadow2)}
    .brand-text{min-width:0}
    .brand-text strong{display:block;font-size:16px;line-height:1.2}
    .brand-text span{display:block;font-size:12px;color:var(--muted);margin-top:2px}
    .nav-links{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end;align-items:center}
    .nav-links a{font-size:13px;color:var(--text);padding:8px 10px;border-radius:999px;transition:.25s ease}
    .nav-links a:hover{background:rgba(79,108,255,.10);color:var(--brand)}
    .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 16px;font-weight:600;transition:.25s ease;cursor:pointer;white-space:nowrap}
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 12px 24px rgba(79,108,255,.24)}
    .btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 28px rgba(79,108,255,.28)}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-ghost:hover{border-color:rgba(79,108,255,.32);color:var(--brand);transform:translateY(-1px)}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;width:44px;height:44px;align-items:center;justify-content:center}
    .menu-btn span{display:block;width:18px;height:2px;background:var(--text);position:relative}
    .menu-btn span::before,.menu-btn span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text)}
    .menu-btn span::before{top:-6px}.menu-btn span::after{top:6px}
    .hero{padding:34px 0 22px}
    .hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:20px;align-items:stretch}
    .hero-main,.hero-side,.panel,.card,.faq-item,.review,.step,.article,.compare,.form-wrap{background:var(--card);border:1px solid rgba(216,224,238,.9);border-radius:var(--radius);box-shadow:var(--shadow2)}
    .hero-main{padding:30px;position:relative;overflow:hidden}
    .hero-main::before,.hero-main::after{content:"";position:absolute;border-radius:50%;pointer-events:none}
    .hero-main::before{width:320px;height:320px;right:-130px;top:-120px;background:radial-gradient(circle, rgba(79,108,255,.20), transparent 60%)}
    .hero-main::after{width:240px;height:240px;right:30px;bottom:-150px;background:radial-gradient(circle, rgba(168,85,247,.16), transparent 60%)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:rgba(79,108,255,.08);color:var(--brand);font-size:13px;font-weight:600}
    h1{margin:14px 0 14px;font-size:clamp(30px,4.2vw,52px);line-height:1.08;letter-spacing:-.03em}
    .hero p{margin:0;color:var(--muted);line-height:1.8;font-size:16px;max-width:64ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .trust-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
    .chip{padding:8px 12px;border-radius:999px;background:#f4f7ff;border:1px solid #e1e8f7;color:#344058;font-size:13px}
    .hero-side{padding:22px;display:grid;gap:14px;align-content:start}
    .mini-banner{border-radius:18px;overflow:hidden;background:linear-gradient(135deg,#141b2d,#25335d);padding:18px;color:#fff;position:relative}
    .mini-banner .k{font-size:12px;opacity:.82}
    .mini-banner h3{margin:8px 0 6px;font-size:20px}
    .mini-banner p{margin:0;color:rgba(255,255,255,.82);line-height:1.7;font-size:14px}
    .mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .mini-stat{padding:16px;border-radius:16px;background:linear-gradient(180deg,#fbfcff,#f3f7ff);border:1px solid #e4ebfb}
    .mini-stat strong{display:block;font-size:22px}
    .mini-stat span{display:block;color:var(--muted);font-size:13px;margin-top:4px}
    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:28px;line-height:1.2}
    .section-head p{margin:0;color:var(--muted);max-width:62ch;line-height:1.7}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .card{padding:20px;transition:.25s ease}
    .card:hover,.review:hover,.article:hover,.step:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(79,108,255,.12),rgba(168,85,247,.12));color:var(--brand);font-weight:700;margin-bottom:12px}
    .card h3,.review h3,.step h3,.article h3{margin:0 0 8px;font-size:18px}
    .card p,.review p,.step p,.article p{margin:0;color:var(--muted);line-height:1.72}
    .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .stat{padding:18px 20px;background:linear-gradient(180deg,#fff, #f8faff);border:1px solid var(--line);border-radius:18px}
    .stat strong{display:block;font-size:28px;line-height:1.1}
    .stat span{display:block;color:var(--muted);margin-top:6px}
    .banner-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .banner-strip img{width:100%;border-radius:18px;border:1px solid var(--line);aspect-ratio:1/1;object-fit:cover;background:#fff}
    .table-wrap{overflow:auto;border-radius:18px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:14px 16px;text-align:left;border-bottom:1px solid #edf1f7;vertical-align:top}
    th{background:#f6f8fe;font-size:14px}
    td{color:#39455d;font-size:14px;line-height:1.65}
    .good{color:#0f8a73;font-weight:700}
    .highlight{color:var(--brand);font-weight:700}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:20px;position:relative}
    .step .num{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;font-weight:700;margin-bottom:12px}
    .tags{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#364055;font-size:13px}
    .compare{padding:18px}
    .rating{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:14px}
    .stars{color:#ffb400;letter-spacing:2px;font-size:20px}
    .faq-list{display:grid;gap:12px}
    .faq-item summary{list-style:none;cursor:pointer;padding:18px 18px 18px 20px;font-weight:700}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item{overflow:hidden}
    .faq-item p{padding:0 20px 18px;margin:0;color:var(--muted);line-height:1.8}
    .reviews,.articles{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .review,.article{padding:20px}
    .meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
    .avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,rgba(79,108,255,.16),rgba(168,85,247,.18));display:grid;place-items:center;font-weight:700;color:var(--brand)}
    .review-head{display:flex;align-items:center;gap:12px}
    .small{font-size:13px;color:var(--muted)}
    .timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .timeline .card{position:relative}
    .timeline .card::before{content:"";position:absolute;left:20px;top:18px;bottom:18px;width:2px;background:linear-gradient(180deg,var(--brand),var(--accent));opacity:.18}
    .timeline .card h3,.timeline .card p{padding-left:14px}
    .article .more{display:inline-flex;margin-top:14px;font-weight:700}
    .form-wrap{padding:22px}
    form{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    label{display:block;font-size:13px;font-weight:700;margin-bottom:8px;color:#344058}
    input,select,textarea{
      width:100%;border:1px solid var(--line);border-radius:14px;padding:13px 14px;font:inherit;color:var(--text);background:#fff;outline:none;transition:.2s ease;
    }
    textarea{min-height:120px;resize:vertical;grid-column:1/-1}
    input:focus,select:focus,textarea:focus{border-color:rgba(79,108,255,.55);box-shadow:0 0 0 4px rgba(79,108,255,.10)}
    .form-actions{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:12px;align-items:center}
    .footer{margin-top:22px;padding:26px 0 30px;border-top:1px solid rgba(216,224,238,.9);background:rgba(255,255,255,.68)}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr 1fr;gap:18px}
    .footer h3{margin:0 0 12px;font-size:18px}
    .footer p,.footer li,.footer a{color:#41506b;font-size:14px;line-height:1.8}
    .footer ul{margin:0;padding-left:18px}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{padding:8px 12px;border-radius:999px;background:#f5f8ff;border:1px solid #e1e8f7}
    .bottom{margin-top:16px;padding-top:14px;border-top:1px solid #e5ebf5;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;color:#5d6a83;font-size:13px}
    .float-box{position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px}
    .float-btn{width:48px;height:48px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 16px 30px rgba(79,108,255,.28)}
    .float-contact{position:fixed;left:16px;bottom:16px;z-index:60;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow2);border-radius:18px;padding:12px;display:flex;align-items:center;gap:12px}
    .float-contact img{width:78px;height:78px;object-fit:cover;border-radius:12px;border:1px solid var(--line)}
    .float-contact .txt{font-size:12px;color:var(--muted);line-height:1.6;max-width:170px}
    .mobile-menu{display:none}
    .anchor{scroll-margin-top:92px}
    .svc-network{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .maplike{padding:20px}
    .mapline{display:flex;flex-wrap:wrap;gap:10px}
    .priceband{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .priceband .card strong{font-size:26px}
    @media (max-width: 1024px){
      .hero-grid,.grid-4,.grid-3,.reviews,.articles,.steps,.timeline,.footer-grid,.banner-strip,.stats,.grid-2,.priceband,.svc-network{grid-template-columns:1fr 1fr}
      .hero-main{padding:24px}
    }
    @media (max-width: 720px){
      .container{width:min(var(--container),calc(100% - 22px))}
      .nav-links,.nav-cta{display:none}
      .menu-btn{display:inline-flex}
      .mobile-menu{display:none;padding:0 0 16px}
      .mobile-menu.open{display:block}
      .mobile-menu .nav-links{display:grid;grid-template-columns:1fr 1fr}
      .hero-grid,.grid-4,.grid-3,.reviews,.articles,.steps,.timeline,.footer-grid,.banner-strip,.stats,.grid-2,.priceband,.svc-network{grid-template-columns:1fr}
      form{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:flex-start}
      .float-contact{max-width:calc(100% - 32px);right:auto}
      .float-contact img{width:62px;height:62px}
    }
    .reveal{opacity:0;transform:translateY(14px);transition:.6s ease}
    .reveal.show{opacity:1;transform:translateY(0)}