:root{
      --bg:#f7f4ee;
      --bg2:#fffaf2;
      --card:#ffffff;
      --text:#1f2937;
      --muted:#5b6472;
      --line:#e8dfcf;
      --brand:#ff7a18;
      --brand2:#ffb000;
      --brand3:#1463ff;
      --green:#10b981;
      --shadow:0 18px 40px rgba(30,41,59,.08);
      --radius:20px;
      --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(circle at 20% 0%, rgba(255,176,0,.16), transparent 26%),
        radial-gradient(circle at 90% 10%, rgba(20,99,255,.10), transparent 22%),
        linear-gradient(180deg, #fffdf9 0%, var(--bg) 28%, #fbf8f2 100%);
      line-height:1.65;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 32px));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:60;
      backdrop-filter:saturate(170%) blur(14px);
      background:rgba(247,244,238,.82);
      border-bottom:1px solid rgba(232,223,207,.8);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:18px;
      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;border:1px solid var(--line);padding:4px}
    .brand-name{font-weight:800;font-size:18px;letter-spacing:.4px}
    .brand-sub{font-size:12px;color:var(--muted)}
    .nav-toggle{
      display:none;border:1px solid var(--line);background:#fff;color:var(--text);
      border-radius:12px;padding:10px 12px;font-weight:700
    }
    .nav-links{display:flex;align-items:center;gap:16px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#374151;padding:7px 0}
    .nav-links a:hover,.nav-links a:focus{color:var(--brand)}
    .hero{padding:26px 0 18px}
    .hero-wrap{
      position:relative;overflow:hidden;
      border:1px solid rgba(232,223,207,.92);
      background:
        linear-gradient(135deg, rgba(255,255,255,.96) 0%, rgba(255,248,236,.96) 38%, rgba(255,255,255,.94) 100%);
      border-radius:30px;
      box-shadow:var(--shadow);
      padding:34px;
    }
    .hero-wrap::before,.hero-wrap::after{
      content:"";position:absolute;border-radius:999px;pointer-events:none;
      background:radial-gradient(circle, rgba(255,122,24,.22), transparent 65%);
      filter:blur(2px)
    }
    .hero-wrap::before{width:260px;height:260px;right:-70px;top:-60px}
    .hero-wrap::after{width:220px;height:220px;left:-90px;bottom:-80px;background:radial-gradient(circle, rgba(20,99,255,.14), transparent 64%)}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:center;position:relative;z-index:1}
    .kicker{display:inline-flex;align-items:center;gap:8px;background:#fff8eb;border:1px solid #ffe0ad;color:#9a5b00;padding:8px 12px;border-radius:999px;font-weight:700;font-size:13px}
    h1{margin:16px 0 14px;font-size:clamp(32px,5vw,54px);line-height:1.08;letter-spacing:-.6px}
    .lead{font-size:17px;color:#374151;max-width:52ch}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border-radius:14px;padding:13px 18px;font-weight:800;border:1px solid transparent;
      transition:.22s ease;box-shadow:0 10px 24px rgba(20,99,255,.10)
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand) 0%, var(--brand2) 100%);color:#1f1607}
    .btn-secondary{background:#fff;border-color:var(--line);color:var(--text)}
    .btn:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(30,41,59,.13)}
    .hero-metrics{
      display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;
    }
    .metric,.card,.review,.faq-item,.timeline-item,.article,.price-box,.compare-box,.contact-box,.case-card{
      background:rgba(255,255,255,.92);
      border:1px solid rgba(232,223,207,.92);
      border-radius:var(--radius);
      box-shadow:0 12px 30px rgba(30,41,59,.06);
    }
    .metric{padding:18px}
    .metric b{display:block;font-size:28px;margin-bottom:6px;color:#0f172a}
    .metric span{color:var(--muted);font-size:14px}
    main{padding-bottom:10px}
    .section{padding:18px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:16px}
    .section-title{margin:0;font-size:28px;line-height:1.2}
    .section-desc{margin:0;color:var(--muted);max-width:70ch}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
    .card{padding:20px}
    .card h3,.card h4,.review h3,.review h4,.compare-box h3,.contact-box h3,.case-card h3,.article h3{margin:0 0 10px;font-size:18px}
    .card p,.review p,.case-card p,.article p{margin:0;color:var(--muted)}
    .icon-pill{
      display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;
      border-radius:14px;background:linear-gradient(135deg, rgba(255,122,24,.12), rgba(20,99,255,.10));
      color:#0f172a;font-weight:900;margin-bottom:14px
    }
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:#334155}
    .tag.hot{background:#fff6ea;border-color:#ffd89b;color:#8a4d00}
    .tag.blue{background:#eef5ff;border-color:#cfe0ff;color:#1846a3}
    .list{
      margin:0;padding:0;list-style:none;display:grid;gap:10px
    }
    .list li{
      display:flex;gap:10px;align-items:flex-start;color:#334155
    }
    .dot{width:9px;height:9px;border-radius:50%;margin-top:8px;background:linear-gradient(135deg,var(--brand),var(--brand2));flex:0 0 auto}
    .flow{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px}
    .step{padding:18px;position:relative}
    .step-num{
      width:36px;height:36px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
      background:linear-gradient(135deg,var(--brand3),#78a7ff);color:#fff;font-weight:900;margin-bottom:12px
    }
    .table-wrap{overflow-x:auto;border-radius:22px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:16px 14px;border-bottom:1px solid #efe6d8;text-align:left;vertical-align:top}
    th{background:#fff8ed;font-size:14px}
    tr:last-child td{border-bottom:none}
    .strong{font-weight:800;color:#0f172a}
    .star{color:#f59e0b;font-weight:900}
    details.faq-item{padding:0;overflow:hidden}
    details summary{
      list-style:none;cursor:pointer;padding:18px 20px;font-weight:800;color:#111827;display:flex;justify-content:space-between;gap:14px
    }
    details summary::-webkit-details-marker{display:none}
    details .faq-content{padding:0 20px 18px;color:var(--muted)}
    .review{padding:20px}
    .review-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;margin-bottom:10px}
    .avatar{
      width:42px;height:42px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
      background:linear-gradient(135deg, rgba(255,122,24,.16), rgba(20,99,255,.12));font-weight:900;color:#0f172a
    }
    .case-card{padding:0;overflow:hidden}
    .case-thumb{padding:16px;border-bottom:1px solid var(--line);background:linear-gradient(135deg,#fff8ed,#fff)}
    .case-body{padding:18px}
    .price-box{padding:20px}
    .price{font-size:30px;font-weight:900;color:#111827;margin:6px 0}
    .form{
      display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px
    }
    .field{display:flex;flex-direction:column;gap:8px}
    .field.full{grid-column:1/-1}
    label{font-size:14px;font-weight:700;color:#334155}
    input,select,textarea{
      width:100%;border:1px solid #dcd3c3;background:#fff;border-radius:14px;padding:13px 14px;
      font:inherit;color:var(--text);outline:none;transition:.2s ease
    }
    textarea{min-height:130px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#ffb45a;box-shadow:0 0 0 4px rgba(255,176,0,.13)}
    .submit{border:none;cursor:pointer}
    .footer{
      margin-top:18px;border-top:1px solid rgba(232,223,207,.9);
      background:#fffaf2;color:#263244
    }
    .footer-inner{padding:24px 0 28px}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px;align-items:start}
    .footer a{color:#193a8a}
    .footer a:hover{color:var(--brand)}
    .small{font-size:13px;color:var(--muted)}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:70;display:flex;flex-direction:column;gap:10px
    }
    .float-btn{
      width:48px;height:48px;border-radius:16px;border:1px solid rgba(232,223,207,.92);
      background:#fff;box-shadow:0 12px 24px rgba(30,41,59,.14);display:inline-flex;align-items:center;justify-content:center;
      font-size:18px;font-weight:900;color:#0f172a
    }
    .mobile-only{display:none}
    .fade-up{opacity:0;transform:translateY(18px);transition:.6s ease}
    .fade-up.show{opacity:1;transform:none}
    .service-net{display:grid;grid-template-columns:1.05fr .95fr;gap:16px}
    .quote{padding:18px;border-left:4px solid var(--brand);background:linear-gradient(90deg, rgba(255,122,24,.08), rgba(255,255,255,.9))}
    @media (max-width: 960px){
      .hero-grid,.grid-3,.grid-4,.grid-2,.flow,.service-net,.footer-grid{grid-template-columns:1fr}
      .section-head{align-items:start;flex-direction:column}
      .nav-toggle{display:inline-flex}
      .nav-links{
        display:none;position:absolute;left:16px;right:16px;top:68px;flex-direction:column;align-items:flex-start;
        padding:14px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)
      }
      .nav-links.open{display:flex}
      .mobile-only{display:block}
      .hero-wrap{padding:22px}
      .form{grid-template-columns:1fr}
    }
    @media (max-width: 640px){
      .container{width:min(var(--container),calc(100% - 24px))}
      .hero{padding-top:16px}
      h1{font-size:30px}
      .lead{font-size:15px}
      .hero-metrics{grid-template-columns:1fr}
      .section-title{font-size:24px}
      .nav{padding:12px 0}
    }