:root{
      --bg:#fff8f1;
      --bg-2:#fff2e6;
      --card:#ffffff;
      --card-2:#fff7ef;
      --line:#f0dcc7;
      --text:#2d241d;
      --muted:#6d5b4d;
      --brand:#ff7a18;
      --brand-2:#ff9c3f;
      --brand-3:#ff5d14;
      --shadow:0 18px 50px rgba(149, 84, 34, .14);
      --shadow-soft:0 10px 30px rgba(149, 84, 34, .09);
      --radius:20px;
      --radius-lg:28px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(255,122,24,.12), transparent 28%),
        radial-gradient(circle at 85% 8%, rgba(255,156,63,.11), transparent 25%),
        linear-gradient(180deg, #fff9f4 0%, #fff5eb 40%, #fffaf6 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(100% - 32px, var(--container));margin:0 auto}
    .topbar,.site-header,.site-footer,.section{position:relative}
    .topbar{
      background:rgba(255,255,255,.72);
      backdrop-filter:blur(10px);
      border-bottom:1px solid rgba(240,220,199,.9);
    }
    .topbar-inner,.header-inner,.footer-inner{
      display:flex;align-items:center;justify-content:space-between;gap:20px
    }
    .topbar-inner{padding:10px 0;font-size:13px;color:var(--muted);flex-wrap:wrap}
    .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;border:1px solid var(--line);box-shadow:var(--shadow-soft)}
    .brand .name{font-weight:800;color:var(--text);font-size:18px;line-height:1.15}
    .brand .sub{font-size:12px;color:var(--muted);margin-top:3px}
    .nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:14px;padding:10px 12px;color:var(--text)}
    .nav{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
    .nav a{font-size:14px;color:var(--text);opacity:.86}
    .nav a:hover,.nav a.active{color:var(--brand-3);opacity:1}
    .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:.24s ease;cursor:pointer;white-space:nowrap;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-3));color:#fff;box-shadow:0 14px 28px rgba(255,122,24,.24)}
    .btn-secondary{background:#fff;color:var(--text);border-color:var(--line)}
    .btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-soft)}
    .site-header{padding:18px 0 14px}
    .header-inner{padding:16px 0}
    .header-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
    .hero{
      padding:24px 0 20px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:22px;
      align-items:stretch;
    }
    .hero-main,.hero-side,.panel,.card,.quote,.faq-item,.form-wrap,.article-item,.compare-table,.timeline,.tag-cloud,.network,.case-card,.review-card,.step,.price-box{
      background:rgba(255,255,255,.82);
      border:1px solid rgba(240,220,199,.95);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-soft);
    }
    .hero-main{padding:34px;position:relative;overflow:hidden}
    .hero-main:before{
      content:"";position:absolute;inset:auto -80px -80px auto;width:220px;height:220px;border-radius:50%;
      background:radial-gradient(circle, rgba(255,122,24,.22), rgba(255,122,24,0) 68%);
      pointer-events:none;
    }
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;border-radius:999px;background:rgba(255,122,24,.08);color:var(--brand-3);
      font-size:13px;font-weight:700;border:1px solid rgba(255,122,24,.18);
    }
    h1{margin:16px 0 14px;font-size:clamp(30px,5vw,52px);line-height:1.08;letter-spacing:-.02em}
    .lead{margin:0 0 24px;color:var(--muted);font-size:16px;line-height:1.85;max-width:62ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px}
    .hero-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .mini-stat{
      padding:14px 16px;border-radius:18px;background:linear-gradient(180deg,#fff, #fff7ef);
      border:1px solid var(--line)
    }
    .mini-stat strong{display:block;font-size:20px;margin-bottom:5px}
    .mini-stat span{font-size:13px;color:var(--muted);line-height:1.5}
    .hero-side{padding:22px;display:grid;gap:14px}
    .hero-side .glass{
      border-radius:22px;padding:18px;background:linear-gradient(135deg, rgba(255,122,24,.12), rgba(255,255,255,.88));
      border:1px solid rgba(255,122,24,.16)
    }
    .glass h3{margin:0 0 8px;font-size:18px}
    .glass p{margin:0;color:var(--muted);line-height:1.7;font-size:14px}
    .tag-cloud{padding:18px}
    .tag-cloud .tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
    .tag{padding:8px 12px;border-radius:999px;background:#fff7ef;border:1px solid var(--line);font-size:13px;color:#55473b}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .section{padding:18px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:16px;flex-wrap:wrap}
    .section h2{margin:0;font-size:28px;line-height:1.2}
    .section p.section-desc{margin:0;color:var(--muted);line-height:1.75;max-width:72ch}
    .card{padding:22px}
    .stat{display:flex;flex-direction:column;gap:8px}
    .stat strong{font-size:28px;color:var(--brand-3)}
    .stat span{color:var(--muted);line-height:1.6}
    .features{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .feature h3,.case-card h3,.review-card h3,.article-item h3,.step h3,.faq-item summary{margin:0 0 10px;font-size:18px}
    .feature p,.case-card p,.review-card p,.article-item p,.step p,.panel p,.quote p,.price-box p{margin:0;color:var(--muted);line-height:1.75}
    .feature .meta{margin-top:14px;display:flex;gap:8px;flex-wrap:wrap}
    .meta .chip{font-size:12px;padding:6px 10px;border-radius:999px;background:#fff5ea;border:1px solid var(--line)}
    .split{
      display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:stretch;
    }
    .panel{padding:24px}
    .panel ul{margin:14px 0 0;padding:0;list-style:none;display:grid;gap:12px}
    .panel li{display:flex;gap:10px;line-height:1.7;color:var(--muted)}
    .panel li:before{content:"";width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-3));margin-top:7px;flex:0 0 auto}
    .steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .step{padding:20px}
    .step .num{width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;border-radius:12px;background:rgba(255,122,24,.1);color:var(--brand-3);font-weight:800;margin-bottom:14px}
    .table-wrap{overflow:auto;border-radius:var(--radius-lg)}
    table{width:100%;border-collapse:collapse;min-width:760px;background:#fff}
    th,td{padding:16px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
    th{background:#fff6ed;color:var(--text);font-size:14px}
    td{color:var(--muted);font-size:14px;line-height:1.65}
    .badge-score{display:inline-flex;padding:7px 10px;border-radius:999px;background:rgba(255,122,24,.1);color:var(--brand-3);font-weight:700}
    .compare-high{color:var(--text);font-weight:700}
    .quotes,.reviews,.cases,.articles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .quote,.review-card,.case-card,.article-item{padding:20px}
    .quote .role,.review-card .role{color:var(--brand-3);font-size:13px;font-weight:700;margin-bottom:8px}
    .avatar{
      width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,#ffb26b,#ff7a18);
      color:#fff;display:inline-flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:12px
    }
    .faq-list{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-item summary{list-style:none;padding:18px 20px;cursor:pointer;font-weight:700;color:var(--text)}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item .answer{padding:0 20px 18px;color:var(--muted);line-height:1.8}
    .faq-item[open]{box-shadow:var(--shadow)}
    .form-wrap{padding:24px}
    form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .field{display:grid;gap:8px}
    .field.full{grid-column:1 / -1}
    label{font-size:14px;font-weight:700;color:var(--text)}
    input,select,textarea{
      width:100%;border:1px solid #e9d7c7;border-radius:14px;background:#fff;padding:13px 14px;
      font:inherit;color:var(--text);outline:none;transition:border-color .2s,box-shadow .2s
    }
    textarea{min-height:130px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:rgba(255,122,24,.7);box-shadow:0 0 0 4px rgba(255,122,24,.12)}
    .form-note{margin-top:14px;color:var(--muted);font-size:13px;line-height:1.7}
    .footer-links{display:flex;flex-wrap:wrap;gap:12px}
    .footer-links a,.article-item a{color:var(--brand-3);font-weight:700}
    .site-footer{
      margin-top:10px;
      padding:24px 0 32px;
      background:linear-gradient(180deg, rgba(255,247,239,.9), rgba(255,244,233,.95));
      border-top:1px solid var(--line);
      color:var(--text);
    }
    .footer-inner{align-items:flex-start;gap:18px}
    .footer-col{flex:1;min-width:0}
    .footer-col p,.footer-col a{color:var(--muted);line-height:1.8}
    .footer-col strong{display:block;color:var(--text);margin-bottom:10px}
    .foot-brand{max-width:360px}
    .foot-brand .brand{margin-bottom:10px}
    .fixed-tools{
      position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px
    }
    .tool{
      width:48px;height:48px;border-radius:16px;background:linear-gradient(135deg,var(--brand),var(--brand-3));
      color:#fff;display:inline-flex;align-items:center;justify-content:center;box-shadow:0 14px 28px rgba(255,122,24,.24)
    }
    .tool.secondary{background:#fff;color:var(--text);border:1px solid var(--line)}
    .side-chat{
      position:fixed;left:16px;bottom:16px;z-index:60;max-width:220px;
      background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-soft);padding:12px
    }
    .side-chat img{border-radius:12px;border:1px solid var(--line);margin-bottom:10px}
    .side-chat .small{font-size:12px;color:var(--muted);line-height:1.6}
    .reveal{opacity:0;transform:translateY(18px);transition:.7s ease}
    .reveal.show{opacity:1;transform:none}
    .toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
    .timeline{padding:22px}
    .timeline .line{display:grid;gap:16px;margin-top:8px}
    .timeline .item{display:grid;grid-template-columns:18px 1fr;gap:12px;align-items:flex-start}
    .timeline .dot{width:14px;height:14px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-3));margin-top:7px;box-shadow:0 0 0 6px rgba(255,122,24,.1)}
    .timeline .item h3{margin:0 0 6px;font-size:16px}
    .price-box{padding:22px;background:linear-gradient(180deg,#fff,#fff7ef)}
    .price-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .network{padding:22px}
    .network-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
    .network-grid .node{padding:14px;border-radius:16px;background:#fff7ef;border:1px solid var(--line);text-align:center;color:var(--text);font-weight:700}
    .logo-inline{display:flex;align-items:center;gap:12px}
    .logo-inline img{width:54px;height:54px;object-fit:contain;border-radius:16px;background:#fff;border:1px solid var(--line)}
    .article-item time{display:inline-block;margin-bottom:8px;color:var(--brand-3);font-size:13px;font-weight:700}
    .mobile-only{display:none}
    @media (max-width: 1024px){
      .hero-grid,.split,.features,.steps,.quotes,.reviews,.cases,.articles,.price-grid,.network-grid,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
      .hero-points{grid-template-columns:repeat(3,minmax(0,1fr))}
    }
    @media (max-width: 760px){
      .container{width:min(100% - 20px, var(--container))}
      .nav-toggle{display:inline-flex}
      .nav{display:none;width:100%;padding:14px 0 4px;gap:12px}
      .nav.open{display:flex}
      .header-inner{flex-wrap:wrap}
      .hero-grid,.split,.features,.steps,.quotes,.reviews,.cases,.articles,.price-grid,.network-grid,.grid-4,form{grid-template-columns:1fr}
      .hero-main{padding:24px}
      .hero-points{grid-template-columns:1fr}
      .header-actions .btn-secondary{display:none}
      .side-chat{max-width:160px}
      .side-chat .small{display:none}
      .desktop-only{display:none}
      .mobile-only{display:block}
    }
    .animate-float{animation:float 5.2s ease-in-out infinite}
    @keyframes float{50%{transform:translateY(-4px)}}