:root{
      --bg:#fffaf5;
      --bg-2:#f4f7ff;
      --card:#ffffff;
      --line:#e9e2d8;
      --text:#1f2a37;
      --muted:#5f6b7a;
      --brand:#ff6b6b;
      --brand-2:#ffb347;
      --brand-3:#6c8cff;
      --ok:#19a974;
      --shadow:0 14px 40px rgba(48, 58, 72, .10);
      --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;background:linear-gradient(180deg,var(--bg) 0%,#fff 38%,#f9fbff 100%);color:var(--text);line-height:1.65}
    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}
    .topbar{position:sticky;top:0;z-index:1000;background:rgba(255,250,245,.86);backdrop-filter:blur(14px);border-bottom:1px solid rgba(233,226,216,.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:12px;background:#fff;box-shadow:0 8px 24px rgba(255,107,107,.12)}
    .brand strong{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted)}
    .nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:14px;padding:10px 12px;color:var(--text)}
    .nav-links{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;padding:8px 11px;border-radius:999px;color:#3d4a58}
    .nav-links a:hover,.nav-links a:focus{background:#fff;color:#111827;box-shadow:0 8px 18px rgba(31,42,55,.08)}
    .hero{position:relative;overflow:hidden;padding:42px 0 26px;background:
      radial-gradient(circle at 15% 18%, rgba(255,179,71,.24), transparent 22%),
      radial-gradient(circle at 85% 12%, rgba(108,140,255,.16), transparent 20%),
      linear-gradient(135deg,#fff8f0 0%, #fff 48%, #f5f8ff 100%);
      border-bottom:1px solid rgba(233,226,216,.9)}
    .hero:before,.hero:after{content:"";position:absolute;border-radius:999px;filter:blur(0)}
    .hero:before{width:240px;height:240px;background:radial-gradient(circle,rgba(255,107,107,.18),transparent 65%);right:-80px;top:-40px;animation:float1 10s ease-in-out infinite}
    .hero:after{width:180px;height:180px;background:radial-gradient(circle,rgba(108,140,255,.16),transparent 65%);left:-50px;bottom:-50px;animation:float2 12s ease-in-out infinite}
    @keyframes float1{50%{transform:translateY(18px)}}
    @keyframes float2{50%{transform:translateY(-16px)}}
    .hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:24px;align-items:stretch}
    .hero h1{font-size:clamp(32px,5vw,54px);line-height:1.08;margin:10px 0 14px;letter-spacing:-.02em}
    .hero p{margin:0;color:var(--muted);font-size:16px;max-width:62ch}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:24px 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:.22s ease;cursor:pointer}
    .btn-primary{background:linear-gradient(135deg,var(--brand) 0%,var(--brand-2) 100%);color:#fff;box-shadow:0 12px 26px rgba(255,107,107,.24)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(255,107,107,.28)}
    .btn-secondary{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-secondary:hover{transform:translateY(-2px);box-shadow:0 12px 24px rgba(31,42,55,.08)}
    .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
    .chip{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#445162;font-size:13px}
    .hero-card{background:linear-gradient(180deg,#fff 0%,#fff9f5 100%);border:1px solid rgba(233,226,216,.95);border-radius:28px;padding:22px;box-shadow:var(--shadow)}
    .mini-stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
    .mini-stat{padding:16px;border-radius:18px;background:#fff;border:1px solid #f0e7db}
    .mini-stat b{display:block;font-size:26px;color:#111827}
    .mini-stat span{font-size:13px;color:var(--muted)}
    .floating-note{margin-top:14px;padding:14px 16px;border-radius:18px;background:linear-gradient(135deg,#fff1f1,#fff8e8);border:1px dashed #f1c7b7;color:#7a4f45;font-size:14px}
    section{padding:18px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:28px;line-height:1.15}
    .section-head p{margin:0;color:var(--muted);max-width:64ch}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
    .card{background:var(--card);border:1px solid rgba(233,226,216,.95);border-radius:24px;padding:20px;box-shadow:0 10px 26px rgba(39,49,60,.06);transition:.22s ease}
    .card:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(39,49,60,.10)}
    .stat-card h3,.service-card h3,.case-card h3,.qa-item summary,.review-card h3{margin:0 0 8px}
    .stat-card p,.service-card p,.case-card p,.review-card p{margin:0;color:var(--muted)}
    .stat-card .num{font-size:30px;font-weight:800;color:#111827;margin-bottom:8px}
    .accent{display:inline-block;padding:6px 10px;border-radius:999px;background:#f4f7ff;color:#31478a;font-size:12px;font-weight:700;margin-bottom:12px}
    .service-card{position:relative;overflow:hidden}
    .service-card:before{content:"";position:absolute;inset:auto -20px -20px auto;width:90px;height:90px;border-radius:50%;background:radial-gradient(circle,rgba(255,107,107,.15),transparent 68%)}
    .service-card ul{margin:14px 0 0;padding-left:18px;color:#425466}
    .service-card li{margin:7px 0}
    .timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .step{padding:18px;border-radius:22px;background:linear-gradient(180deg,#fff 0%,#fffaf4 100%);border:1px solid #f0e5d8}
    .step .n{width:34px;height:34px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;font-weight:800;margin-bottom:12px}
    .table-wrap{overflow:auto;border-radius:24px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:16px 18px;text-align:left;border-bottom:1px solid #f0e7db;vertical-align:top}
    th{background:#fff7ef;color:#2b3440;font-size:14px}
    td{color:#3f4d5d;font-size:14px}
    .rating{font-weight:800;color:#d97706}
    .split{display:grid;grid-template-columns:1.1fr .9fr;gap:16px;align-items:start}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:#415163}
    .network{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
    .network .node{padding:16px;border-radius:18px;background:linear-gradient(135deg,#fff, #f7f9ff);border:1px solid #e8edf8}
    .reviews .review-card{height:100%}
    .review-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}
    .stars{color:#ff9f1c;font-size:16px;letter-spacing:1px}
    .articles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .article a{color:#111827;font-weight:700}
    .article p{margin:8px 0 0;color:var(--muted)}
    .faq-list{display:grid;gap:12px}
    .qa-item{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:0 8px 20px rgba(39,49,60,.05)}
    .qa-item summary{list-style:none;cursor:pointer;padding:16px 18px;font-weight:700;color:#18212d}
    .qa-item summary::-webkit-details-marker{display:none}
    .qa-item .answer{padding:0 18px 16px;color:var(--muted)}
    .form-wrap{display:grid;grid-template-columns:1fr .72fr;gap:16px}
    form{display:grid;gap:12px}
    .field{display:grid;gap:7px}
    label{font-size:14px;font-weight:700;color:#324150}
    input,select,textarea{width:100%;padding:13px 14px;border:1px solid #d9e0ea;border-radius:14px;background:#fff;color:var(--text);font:inherit;outline:none;transition:.2s}
    input:focus,select:focus,textarea:focus{border-color:#f59e0b;box-shadow:0 0 0 4px rgba(245,158,11,.12)}
    textarea{min-height:120px;resize:vertical}
    .contact-card{background:linear-gradient(180deg,#fff 0%,#fffaf7 100%);border-radius:24px;border:1px solid var(--line);padding:20px}
    .contact-list{display:grid;gap:10px;margin-top:12px}
    .contact-item{padding:12px 14px;border-radius:16px;background:#fff;border:1px solid #f0e7db;color:#334155}
    .qrcode{display:flex;gap:14px;align-items:center;margin-top:16px}
    .qrcode img{width:120px;aspect-ratio:1/1;object-fit:cover;border-radius:16px;border:1px solid #e9e2d8;background:#fff}
    .footer{margin-top:8px;padding:24px 0 30px;background:#fff;border-top:1px solid var(--line);color:#334155}
    .footer a{color:#2f5bea}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:18px;align-items:start}
    .small{font-size:13px;color:#6b7280}
    .float-contact{position:fixed;right:18px;bottom:18px;z-index:1200;display:grid;gap:10px}
    .float-contact a{display:flex;align-items:center;justify-content:center;min-width:48px;height:48px;padding:0 14px;border-radius:999px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;font-weight:700;box-shadow:0 12px 28px rgba(255,107,107,.26)}
    .backtop{position:fixed;right:18px;bottom:74px;z-index:1200;width:48px;height:48px;border-radius:999px;border:1px solid #e5e7eb;background:#fff;color:#111827;display:grid;place-items:center;box-shadow:0 12px 26px rgba(31,42,55,.12);opacity:0;pointer-events:none;transition:.2s}
    .backtop.show{opacity:1;pointer-events:auto}
    .reveal{opacity:0;transform:translateY(18px);transition:.6s ease}
    .reveal.show{opacity:1;transform:none}
    .stacked-images{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
    .stacked-images .imgbox{border-radius:18px;overflow:hidden;border:1px solid #eadfd2;background:#fff}
    .stacked-images img{width:100%;height:auto}
    .article-list{display:grid;gap:12px}
    .article-item{display:flex;justify-content:space-between;gap:14px;padding:14px 16px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .article-item span{color:var(--muted);font-size:13px;white-space:nowrap}
    .price-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .price{padding:18px;border-radius:22px;background:linear-gradient(180deg,#fff,#fff8f2);border:1px solid #f0e5d8}
    .price strong{font-size:30px;display:block;margin:8px 0;color:#111827}
    .center-note{padding:16px 18px;border-radius:20px;background:linear-gradient(135deg,#f7fbff,#fff4f4);border:1px solid #e6edf8}
    @media (max-width: 1024px){
      .hero-grid,.split,.form-wrap,.footer-grid{grid-template-columns:1fr}
      .grid-4,.grid-3,.grid-2,.timeline,.network,.articles,.price-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .nav-toggle{display:inline-flex}
      .nav-links{display:none;width:100%;padding:10px 0 4px}
      .nav-links.open{display:flex}
      .nav{flex-wrap:wrap}
    }
    @media (max-width: 640px){
      .container{width:min(var(--container),calc(100% - 24px))}
      .grid-4,.grid-3,.grid-2,.timeline,.network,.articles,.price-grid,.stacked-images{grid-template-columns:1fr}
      .mini-stats{grid-template-columns:1fr}
      .hero{padding-top:28px}
      .hero h1{font-size:clamp(30px,11vw,40px)}
      .section-head{flex-direction:column;align-items:flex-start}
      .nav{padding:12px 0}
      .brand strong{font-size:16px}
      .float-contact{right:12px;bottom:12px}
      .backtop{right:12px;bottom:68px}
    }