:root{
      --bg:#f7f4ee;
      --bg2:#fff9f2;
      --card:#ffffff;
      --text:#1f2937;
      --muted:#667085;
      --line:#eadfd2;
      --brand:#f97316;
      --brand2:#2563eb;
      --brand3:#ec4899;
      --green:#10b981;
      --shadow:0 18px 40px rgba(31,41,55,.08);
      --shadow2:0 10px 24px rgba(249,115,22,.15);
      --radius:20px;
      --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(249,115,22,.10), transparent 26%),
        radial-gradient(circle at top right, rgba(37,99,235,.08), transparent 22%),
        linear-gradient(180deg, var(--bg2), var(--bg));
      line-height:1.7;
    }
    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:50;
      backdrop-filter: blur(14px);
      background:rgba(255,249,242,.84);
      border-bottom:1px solid rgba(234,223,210,.9);
    }
    .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 .logo-wrap{
      width:42px;height:42px;border-radius:14px;background:#fff;border:1px solid var(--line);
      display:grid;place-items:center;box-shadow:var(--shadow);overflow:hidden;flex:0 0 auto;
    }
    .brand img{width:100%;height:100%;object-fit:contain}
    .brand h2{margin:0;font-size:18px;line-height:1.2}
    .brand p{margin:3px 0 0;font-size:12px;color:var(--muted)}
    .nav-links{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:flex-end}
    .nav-links a,.btn,.chip{
      border:1px solid transparent;border-radius:999px;padding:10px 14px;font-size:14px;transition:.22s ease;
      display:inline-flex;align-items:center;gap:8px;
    }
    .nav-links a{color:#334155;background:rgba(255,255,255,.64);border-color:rgba(234,223,210,.8)}
    .nav-links a:hover,.nav-links a.active{transform:translateY(-1px);border-color:rgba(249,115,22,.3);box-shadow:var(--shadow2);color:#0f172a}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px}
    .hero{padding:34px 0 18px}
    .hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:20px;align-items:stretch}
    .hero-main,.hero-side,.section-card,.panel,.faq-item,.review-card,.article-card,.form-card,.compare-card{
      background:rgba(255,255,255,.88);
      border:1px solid rgba(234,223,210,.9);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .hero-main{padding:34px;position:relative;overflow:hidden}
    .hero-main:before,.hero-main:after{
      content:"";position:absolute;border-radius:50%;filter:blur(6px);opacity:.8;pointer-events:none
    }
    .hero-main:before{width:180px;height:180px;background:rgba(249,115,22,.14);right:-30px;top:-28px}
    .hero-main:after{width:140px;height:140px;background:rgba(37,99,235,.12);left:44%;bottom:-54px}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;
      background:linear-gradient(90deg, rgba(249,115,22,.12), rgba(37,99,235,.10));
      color:#b45309;font-size:13px;font-weight:600;border:1px solid rgba(249,115,22,.18)
    }
    h1{font-size:clamp(32px, 4vw, 54px);line-height:1.08;margin:16px 0 14px;letter-spacing:-.02em}
    .hero-main p{margin:0;color:#475569;font-size:16px;max-width:58ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .btn{font-weight:700;cursor:pointer;border-color:rgba(37,99,235,.18)}
    .btn-primary{background:linear-gradient(135deg, var(--brand), #fb7185);color:#fff;box-shadow:0 14px 28px rgba(249,115,22,.28)}
    .btn-primary:hover{transform:translateY(-2px)}
    .btn-secondary{background:#fff;color:#1e293b}
    .btn-secondary:hover{transform:translateY(-2px);border-color:rgba(37,99,235,.28)}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px}
    .point{padding:14px;border-radius:16px;background:linear-gradient(180deg, rgba(255,255,255,.95), rgba(255,248,243,.88));border:1px solid var(--line)}
    .point strong{display:block;font-size:20px}
    .point span{font-size:13px;color:var(--muted)}
    .hero-side{padding:18px}
    .side-card{padding:18px;border-radius:18px;background:linear-gradient(180deg, rgba(255,255,255,.95), rgba(249,250,251,.9));border:1px solid var(--line)}
    .side-card + .side-card{margin-top:12px}
    .side-card h3{margin:0 0 8px;font-size:16px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
    .chip{background:#fff;border-color:var(--line);color:#334155}
    .chip.hot{background:rgba(249,115,22,.1);border-color:rgba(249,115,22,.24);color:#b45309}
    .section{padding:14px 0 22px}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:14px}
    .section-head h2{margin:0;font-size:28px;line-height:1.15}
    .section-head p{margin:0;color:var(--muted);max-width:68ch}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .metric,.service,.step,.case,.network,.review-card,.article-card{padding:18px}
    .metric .num{font-size:28px;font-weight:800;color:#111827}
    .metric .label{color:var(--muted);font-size:14px}
    .service h3,.step h3,.case h3,.review-card h3,.article-card h3{margin:0 0 10px;font-size:18px}
    .service p,.step p,.case p,.review-card p,.article-card p{margin:0;color:#475569;font-size:14px}
    .service .meta{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px}
    .mini{font-size:12px;padding:6px 10px;border-radius:999px;background:#f8fafc;border:1px solid var(--line);color:#334155}
    .section-card{padding:22px}
    .two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .table-wrap{overflow:auto;border-radius:16px;border:1px solid var(--line)}
    table{width:100%;border-collapse:collapse;min-width:760px;background:#fff}
    th,td{padding:14px 12px;border-bottom:1px solid #eee;text-align:left;vertical-align:top;font-size:14px}
    th{background:#fff7f0;color:#111827}
    tr:last-child td{border-bottom:none}
    .badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;font-size:12px;font-weight:700}
    .badge.good{background:rgba(16,185,129,.12);color:#047857}
    .badge.warn{background:rgba(249,115,22,.12);color:#b45309}
    .badge.blue{background:rgba(37,99,235,.12);color:#1d4ed8}
    .timeline{display:grid;gap:12px}
    .timeline-item{display:grid;grid-template-columns:92px 1fr;gap:12px;align-items:start;padding:14px;border-radius:16px;background:#fff;border:1px solid var(--line)}
    .timeline-item b{color:#0f172a}
    .timeline-item span{color:var(--muted);font-size:13px}
    .case-gallery{display:grid;grid-template-columns:1.1fr .9fr;gap:14px}
    .gallery-col{display:grid;gap:14px}
    .image-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .image-grid img,.hero-image img{border-radius:18px;border:1px solid var(--line);box-shadow:var(--shadow)}
    .reviews,.articles,.network-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .stars{color:#f59e0b;font-size:18px;letter-spacing:2px}
    .faq-list{display:grid;gap:12px}
    .faq-item summary{
      list-style:none;cursor:pointer;padding:18px 18px 18px 20px;font-weight:700;position:relative
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{
      content:"+";position:absolute;right:18px;top:16px;width:28px;height:28px;border-radius:50%;
      display:grid;place-items:center;background:#fff3ea;color:#c2410c;border:1px solid rgba(249,115,22,.18)
    }
    .faq-item[open] summary:after{content:"−"}
    .faq-item .answer{padding:0 18px 18px 20px;color:#475569}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .field{display:flex;flex-direction:column;gap:7px}
    .field label{font-size:14px;font-weight:700;color:#334155}
    .field input,.field select,.field textarea{
      width:100%;padding:13px 14px;border-radius:14px;border:1px solid var(--line);background:#fff;color:#111827;outline:none;
      transition:.2s ease;font:inherit
    }
    .field input:focus,.field select:focus,.field textarea:focus{border-color:rgba(37,99,235,.38);box-shadow:0 0 0 4px rgba(37,99,235,.08)}
    .field textarea{min-height:120px;resize:vertical}
    .full{grid-column:1/-1}
    .footer{
      margin-top:8px;padding:26px 0 30px;background:#111827;color:#e5e7eb
    }
    .footer a{color:#fff;text-decoration:underline;text-underline-offset:3px}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}
    .footer small,.footer p{color:#cbd5e1}
    .footer .foot-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer .foot-links a{background:rgba(255,255,255,.08);padding:8px 10px;border-radius:999px;text-decoration:none}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px
    }
    .float-btn{
      width:52px;height:52px;border-radius:16px;border:none;box-shadow:var(--shadow);cursor:pointer;
      background:linear-gradient(135deg,var(--brand2),#8b5cf6);color:#fff;font-weight:800
    }
    .customer{
      position:fixed;left:16px;bottom:16px;z-index:60;width:min(300px, calc(100vw - 32px));
      background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);overflow:hidden
    }
    .customer header{padding:12px 14px;background:linear-gradient(135deg,#fff7ed,#eff6ff);font-weight:800}
    .customer .box{padding:14px;display:grid;gap:10px}
    .customer .contact-line{font-size:14px;color:#334155}
    .customer img{border-radius:14px;border:1px solid var(--line);width:100%}
    .fade-in{opacity:0;transform:translateY(18px);transition:.55s ease}
    .fade-in.show{opacity:1;transform:none}
    .toggle-menu{display:none}
    @media (max-width: 1024px){
      .hero-grid,.grid-4,.two-col,.case-gallery,.reviews,.articles,.network-grid,.footer-grid{grid-template-columns:1fr}
      .hero-points{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-btn{display:inline-flex}
      .nav-links.open{display:flex;position:absolute;left:16px;right:16px;top:68px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}
      .nav{position:relative}
      .form-grid{grid-template-columns:1fr}
    }
    @media (max-width: 640px){
      .hero-main{padding:22px}
      .section-head{flex-direction:column;align-items:flex-start}
      .timeline-item{grid-template-columns:1fr}
      .customer{display:none}
      .hero-actions .btn{width:100%;justify-content:center}
    }