:root{
      --bg:#fff7ef;
      --surface:#ffffff;
      --surface-2:#fff1e3;
      --line:#f0dcc6;
      --text:#1f2937;
      --muted:#6b7280;
      --brand:#ff6a00;
      --brand-2:#ff8a1f;
      --brand-3:#ffb14d;
      --shadow:0 18px 50px rgba(122, 56, 0, .12);
      --radius:20px;
      --radius-sm:14px;
      --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;background:linear-gradient(180deg,#fff8f0 0%,#fffdfb 28%,#fff6ec 100%);color:var(--text)}
    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:50;background:rgba(255,250,245,.9);backdrop-filter:blur(14px);border-bottom:1px solid rgba(240,220,198,.8)}
    .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{width:42px;height:42px;object-fit:contain}
    .brand .meta{min-width:0}
    .brand .name{font-weight:800;font-size:18px;line-height:1.1}
    .brand .sub{font-size:12px;color:var(--muted);margin-top:3px}
    .navwrap{display:flex;align-items:center;gap:12px}
    nav{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
    nav a{font-size:14px;color:#374151;padding:8px 10px;border-radius:999px;transition:.25s}
    nav a:hover{background:#fff0e1;color:#111827}
    .cta-row{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;cursor:pointer}
    .btn-primary{background:linear-gradient(135deg,var(--brand),#ff944d);color:#fff;box-shadow:0 12px 24px rgba(255,106,0,.22)}
    .btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 30px rgba(255,106,0,.28)}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-ghost:hover{border-color:#ffbf88;box-shadow:var(--shadow)}
    .menu-toggle{display:none}
    main{overflow:hidden}
    section{padding:72px 0}
    .hero{padding:42px 0 30px}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:stretch}
    .hero-card,.panel,.card,.faq-item,.quote,.formbox,.compare{background:linear-gradient(180deg,#fff 0%,#fffaf5 100%);border:1px solid rgba(240,220,198,.9);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-card{padding:34px;position:relative;overflow:hidden}
    .hero-card:before,.hero-card:after{content:"";position:absolute;border-radius:50%;background:radial-gradient(circle,rgba(255,137,31,.18),rgba(255,137,31,0) 70%)}
    .hero-card:before{width:240px;height:240px;right:-90px;top:-70px}
    .hero-card:after{width:180px;height:180px;right:110px;bottom:-80px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#fff1e3;color:#9a4c00;font-weight:700;font-size:13px}
    h1{margin:16px 0 14px;font-size:clamp(30px,4vw,54px);line-height:1.08;letter-spacing:-.02em}
    .lead{margin:0;color:#4b5563;font-size:17px;line-height:1.8;max-width:56ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:26px}
    .mini-stat{padding:16px;border-radius:18px;background:rgba(255,248,240,.9);border:1px solid #f4ddc5}
    .mini-stat strong{display:block;font-size:22px;color:#111827}
    .mini-stat span{font-size:13px;color:var(--muted)}
    .side-card{padding:22px;display:grid;gap:14px;align-content:start}
    .side-card .preview{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .badge{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 12px;border-radius:999px;background:#fff0de;color:#a14c00;font-size:12px;font-weight:700}
    .service-grid,.case-grid,.article-grid,.review-grid,.network-grid,.faq-grid,.feature-grid,.compare-grid,.step-grid{display:grid;gap:18px}
    .feature-grid{grid-template-columns:repeat(3,1fr)}
    .card{padding:22px}
    .card h3,.panel h3{margin:0 0 10px;font-size:18px}
    .card p,.panel p,.quote p,.faq-body,.formbox label,.article-item p{color:#5b6472;line-height:1.75;margin:0}
    .card .tagline{display:inline-block;margin-bottom:12px;color:#a14c00;font-size:12px;font-weight:800}
    .metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .metric{padding:20px;border-radius:18px;background:linear-gradient(180deg,#fff,#fff5ea);border:1px solid #f2ddc6}
    .metric strong{display:block;font-size:28px;line-height:1;color:#111827}
    .metric span{display:block;margin-top:8px;font-size:13px;color:var(--muted)}
    .service-grid{grid-template-columns:repeat(3,1fr)}
    .service-card{padding:22px;border-radius:18px;background:#fff;border:1px solid #f0dcc6;transition:.25s}
    .service-card:hover,.card:hover,.quote:hover,.faq-item:hover{transform:translateY(-4px);box-shadow:0 20px 36px rgba(122,56,0,.12)}
    .service-card h3{margin:0 0 8px}
    .service-card ul{margin:12px 0 0;padding:0;list-style:none;display:grid;gap:8px;color:#4b5563}
    .service-card li:before{content:"•";color:var(--brand);margin-right:8px}
    .two-col{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:start}
    .timeline{display:grid;gap:12px}
    .timeline .step{display:flex;gap:14px;padding:16px;border-radius:16px;background:#fff;border:1px solid #f1ddc7}
    .num{width:32px;height:32px;border-radius:999px;background:linear-gradient(135deg,var(--brand),var(--brand-3));color:#fff;font-weight:800;display:grid;place-items:center;flex:0 0 auto}
    .compare{padding:22px;overflow:auto}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:14px 12px;border-bottom:1px solid #f0dcc6;text-align:left;vertical-align:top}
    th{background:#fff6ec;color:#7a3f00;font-size:14px}
    .highlight{font-weight:800;color:#c24b00}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 20px;background:transparent;border:0;color:var(--text);font:inherit;font-weight:700;cursor:pointer;text-align:left}
    .faq-q span{font-size:16px}
    .faq-q i{font-style:normal;color:var(--brand);font-size:20px;transition:.25s}
    .faq-item[open] .faq-q i{transform:rotate(45deg)}
    .faq-body{padding:0 20px 18px}
    .quote{padding:20px}
    .quote .head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
    .avatar{width:46px;height:46px;border-radius:14px;background:linear-gradient(135deg,#ffd7b3,#ff9d52);display:grid;place-items:center;color:#fff;font-weight:800}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
    .article-grid{grid-template-columns:repeat(3,1fr)}
    .article-item{padding:20px;border-radius:18px;background:#fff;border:1px solid #f0dcc6}
    .article-item .meta{font-size:12px;color:#a15b10;font-weight:700;margin-bottom:10px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span{padding:10px 14px;border-radius:999px;background:#fff;border:1px solid #f0dcc6;color:#3b4250;font-size:13px}
    .formbox{padding:24px}
    .formgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .field{display:grid;gap:8px}
    input,select,textarea{width:100%;padding:13px 14px;border:1px solid #e8d7c4;border-radius:14px;background:#fff;color:var(--text);font:inherit;outline:none;transition:.2s}
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#ff9b48;box-shadow:0 0 0 4px rgba(255,153,72,.12)}
    .footer-links,.contact-list{display:flex;flex-wrap:wrap;gap:10px}
    footer{padding:28px 0 34px;border-top:1px solid #f0dcc6;background:#fffaf5;color:var(--text)}
    footer a{color:#1f2937}
    .floating{position:fixed;right:18px;bottom:18px;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),#ff9b48);color:#fff;box-shadow:0 14px 28px rgba(255,106,0,.24)}
    .reveal{opacity:0;transform:translateY(18px);transition:.7s ease}
    .reveal.in{opacity:1;transform:none}
    .mobile-only{display:none}
    .subtle{color:var(--muted);font-size:13px}
    .list{display:grid;gap:10px;margin:0;padding:0;list-style:none}
    .list li{padding:10px 12px;border-radius:14px;background:#fff;border:1px solid #f0dcc6}
    .case-grid{grid-template-columns:repeat(4,1fr)}
    .network-grid{grid-template-columns:repeat(4,1fr)}
    .step-grid{grid-template-columns:repeat(4,1fr)}
    .step-card{padding:20px;border-radius:18px;background:#fff;border:1px solid #f0dcc6}
    .step-card h3{margin:10px 0 8px}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:22px}
    .section-head h2{margin:0;font-size:clamp(24px,3vw,36px)}
    .section-head p{margin:0;color:var(--muted);max-width:60ch;line-height:1.7}
    .center{text-align:center}
    @media (max-width: 980px){
      nav{display:none}
      .menu-toggle{display:inline-flex}
      .hero-grid,.two-col,.feature-grid,.service-grid,.grid-2,.article-grid,.case-grid,.network-grid,.step-grid,.metrics{grid-template-columns:1fr 1fr}
      .hero-card{padding:26px}
      .hero-points{grid-template-columns:1fr}
    }
    @media (max-width: 720px){
      .container{width:min(var(--container),calc(100% - 24px))}
      .topbar{gap:10px}
      .brand .sub{display:none}
      .cta-row .btn-ghost{display:none}
      .mobile-only{display:inline-flex}
      .hero-grid,.two-col,.feature-grid,.service-grid,.grid-2,.article-grid,.case-grid,.network-grid,.step-grid,.metrics,.formgrid{grid-template-columns:1fr}
      .hero-card,.side-card,.card,.panel,.quote,.formbox,.compare{border-radius:18px}
      section{padding:54px 0}
      .section-head{flex-direction:column;align-items:flex-start}
      .floating{right:14px;bottom:14px}
    }