:root{
      --bg:#fffaf5;
      --panel:#ffffff;
      --panel2:#fff3eb;
      --line:#f1ddd2;
      --text:#1f2937;
      --muted:#6b7280;
      --brand:#ff5a2a;
      --brand2:#ffb000;
      --blue:#1f6fff;
      --green:#0f9d7a;
      --shadow:0 18px 45px rgba(48, 24, 11, .10);
      --radius:22px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:Inter, "PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
      background:
        radial-gradient(circle at top left, rgba(255,90,42,.10), transparent 28%),
        radial-gradient(circle at 88% 10%, rgba(31,111,255,.09), transparent 24%),
        linear-gradient(180deg, #fffdfb 0%, var(--bg) 100%);
      color:var(--text);
      line-height:1.65;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    .container{max-width:var(--container);margin:0 auto;padding:0 20px}
    .site-header{
      position:sticky;top:0;z-index:50;
      backdrop-filter:blur(14px);
      background:rgba(255,250,245,.85);
      border-bottom:1px solid rgba(241,221,210,.75);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      min-height:76px;
    }
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand .logo-wrap{
      width:44px;height:44px;border-radius:14px;overflow:hidden;flex:none;
      background:linear-gradient(135deg,#fff,#ffe7dd);
      box-shadow:0 10px 24px rgba(255,90,42,.12);
      display:grid;place-items:center;
      border:1px solid rgba(255,90,42,.12);
    }
    .brand .title{font-weight:800;font-size:1.02rem;letter-spacing:.2px}
    .brand .sub{font-size:.82rem;color:var(--muted)}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:.95rem;color:#374151;padding:8px 0;position:relative}
    .nav-links a:after{
      content:"";position:absolute;left:0;bottom:3px;width:0;height:2px;background:var(--brand);transition:.25s ease
    }
    .nav-links a:hover:after,.nav-links a:focus-visible:after{width:100%}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:12px 18px;border-radius:999px;border:1px solid transparent;
      font-weight:700;transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
      cursor:pointer;white-space:nowrap;
    }
    .btn:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,90,42,.16)}
    .btn-primary{background:linear-gradient(135deg,var(--brand),#ff7b31);color:#fff}
    .btn-ghost{background:#fff;border-color:#f1ddd2;color:#374151}
    .menu-toggle{display:none;background:#fff;border:1px solid #f1ddd2;border-radius:14px;width:44px;height:44px;align-items:center;justify-content:center}
    .menu-toggle span{display:block;width:18px;height:2px;background:#374151;position:relative}
    .menu-toggle span:before,.menu-toggle span:after{content:"";position:absolute;left:0;width:18px;height:2px;background:#374151}
    .menu-toggle span:before{top:-6px}.menu-toggle span:after{top:6px}
    .hero{
      padding:64px 0 24px;
      position:relative;
      overflow:hidden;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.18fr .82fr;gap:24px;align-items:stretch;
    }
    .hero-copy,.hero-side,.section-card,.review-card,.faq-item,.case-card,.article-card,.metric,.step,.compare,.form-card,.info-box,.timeline-item,.price-card,.network-card,.value-card{
      background:rgba(255,255,255,.92);
      border:1px solid rgba(241,221,210,.9);
      box-shadow:var(--shadow);
      border-radius:var(--radius);
    }
    .hero-copy{padding:34px;position:relative;overflow:hidden}
    .hero-copy:before{
      content:"";position:absolute;inset:auto -20% -35% auto;width:280px;height:280px;border-radius:50%;
      background:radial-gradient(circle, rgba(255,90,42,.14), transparent 68%);
      pointer-events:none;
    }
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;
      background:linear-gradient(135deg, rgba(255,90,42,.12), rgba(255,176,0,.12));
      color:#9a3412;font-weight:700;font-size:.88rem;
    }
    h1{font-size:clamp(2rem,5vw,3.7rem);line-height:1.08;margin:18px 0 14px;letter-spacing:-.02em}
    .lead{font-size:1.08rem;color:#374151;max-width:58ch}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0 18px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px}
    .mini{
      padding:14px 14px 12px;border-radius:18px;background:linear-gradient(180deg,#fff,#fff7f1);
      border:1px solid #f3e0d3;
    }
    .mini strong{display:block;font-size:1.02rem}
    .mini span{font-size:.9rem;color:var(--muted)}
    .hero-side{padding:22px;display:grid;gap:14px}
    .stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .metric{padding:18px}
    .metric .num{font-size:1.6rem;font-weight:900;color:#111827}
    .metric .label{color:var(--muted);font-size:.92rem}
    .floating-badge{
      padding:16px;border-radius:20px;background:linear-gradient(135deg,#1f2937,#111827);color:#fff;
    }
    .floating-badge .small{font-size:.86rem;color:rgba(255,255,255,.78)}
    .floating-badge .big{font-size:1.15rem;font-weight:800;margin-top:4px}
    .section{padding:20px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:clamp(1.4rem,3vw,2.2rem)}
    .section-head p{margin:0;color:var(--muted);max-width:62ch}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .section-card{padding:22px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span,.pill{
      display:inline-flex;align-items:center;padding:8px 12px;border-radius:999px;
      background:#fff7f2;border:1px solid #f2e1d7;color:#7c2d12;font-size:.9rem;
    }
    .service-list,.bullet-list{display:grid;gap:10px;margin:0;padding:0;list-style:none}
    .service-list li,.bullet-list li{display:flex;gap:10px;color:#374151}
    .dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2));margin-top:.5em;flex:none}
    .compare{padding:0;overflow:hidden}
    table{width:100%;border-collapse:collapse}
    th,td{padding:14px 16px;text-align:left;border-bottom:1px solid #f2e1d7;vertical-align:top}
    th{background:#fff6f0;font-size:.92rem}
    .rating{font-weight:900;color:#111827}
    .table-wrap{overflow:auto}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .step{padding:20px}
    .step .index{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--brand),#ff8f4d);color:#fff;display:grid;place-items:center;font-weight:900;margin-bottom:14px}
    .split{display:grid;grid-template-columns:1.05fr .95fr;gap:16px}
    .case-card,.article-card,.review-card,.faq-item,.network-card,.price-card,.timeline-item,.value-card{padding:20px}
    .case-meta,.article-meta{color:var(--muted);font-size:.92rem;margin-bottom:10px}
    .review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .stars{color:#f59e0b;letter-spacing:2px;font-size:1.05rem}
    .accordion{display:grid;gap:12px}
    .faq-item button{
      width:100%;text-align:left;border:0;background:transparent;padding:0;font:inherit;color:#111827;display:flex;justify-content:space-between;gap:16px;cursor:pointer;font-weight:800
    }
    .faq-answer{display:none;color:#4b5563;padding-top:12px}
    .faq-item.open .faq-answer{display:block}
    .faq-icon{color:var(--brand);font-size:1.2rem;flex:none}
    .form{
      display:grid;grid-template-columns:repeat(2,1fr);gap:14px
    }
    .field{display:grid;gap:8px}
    .field.full{grid-column:1/-1}
    input,select,textarea{
      width:100%;border:1px solid #e9d5c8;background:#fff;border-radius:14px;padding:13px 14px;
      font:inherit;color:#111827;outline:none;transition:border-color .2s ease, box-shadow .2s ease
    }
    input:focus,select:focus,textarea:focus{border-color:rgba(255,90,42,.55);box-shadow:0 0 0 4px rgba(255,90,42,.10)}
    textarea{min-height:124px;resize:vertical}
    .submit-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-top:6px}
    .muted{color:var(--muted)}
    .footer{
      margin-top:26px;
      padding:24px 0 28px;
      border-top:1px solid rgba(241,221,210,.9);
      background:linear-gradient(180deg, rgba(255,248,242,.95), rgba(255,244,235,.95));
      color:#374151;
    }
    .footer-grid{display:grid;grid-template-columns:1.15fr .85fr 1fr;gap:18px;align-items:start}
    .footer a{color:#374151}
    .footer .links{display:flex;flex-wrap:wrap;gap:10px}
    .footer .links a{padding:7px 10px;border-radius:999px;background:#fff;border:1px solid #f1ddd2}
    .floating-contact{
      position:fixed;right:18px;bottom:18px;z-index:60;display:grid;gap:10px;
    }
    .float-btn{
      display:inline-flex;align-items:center;gap:10px;padding:12px 14px;border-radius:999px;
      background:linear-gradient(135deg,#111827,#374151);color:#fff;box-shadow:0 16px 30px rgba(17,24,39,.18)
    }
    .float-btn.secondary{background:linear-gradient(135deg,var(--brand),#ff7b31)}
    .backtop{
      position:fixed;right:18px;bottom:132px;z-index:60;width:46px;height:46px;border-radius:16px;border:1px solid #f1ddd2;background:#fff;color:#374151;display:grid;place-items:center;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:.25s ease
    }
    .backtop.show{opacity:1;pointer-events:auto}
    .reveal{opacity:0;transform:translateY(18px);transition:opacity .55s ease, transform .55s ease}
    .reveal.in{opacity:1;transform:none}
    .image-row{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .image-card{border-radius:18px;overflow:hidden;border:1px solid #f1ddd2;background:#fff}
    .image-card img{width:100%;display:block;object-fit:cover}
    .service-map{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .timeline{display:grid;gap:12px}
    .timeline-item{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start}
    .timeline-dot{width:14px;height:14px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2));margin-top:.45rem}
    .news-list{display:grid;gap:12px}
    .news-list a{display:flex;justify-content:space-between;gap:16px;padding:14px 16px;border-radius:16px;background:#fff;border:1px solid #f1ddd2}
    .news-list a span{color:var(--muted)}
    .topbar{
      display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:16px
    }
    .badge{
      display:inline-flex;padding:7px 11px;border-radius:999px;background:#fff2e8;border:1px solid #f1ddd2;color:#9a3412;font-size:.88rem;font-weight:700
    }
    .price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .price-card .amount{font-size:1.9rem;font-weight:900;color:#111827}
    .price-card .unit{font-size:.92rem;color:var(--muted)}
    .service-network{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .network-card strong{display:block;margin-bottom:6px}
    @media (max-width: 1080px){
      .hero-grid,.split,.service-map,.review-grid,.price-grid,.service-network,.footer-grid,.grid-4,.grid-3,.steps{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width: 760px){
      .nav-links{display:none;position:absolute;left:20px;right:20px;top:76px;background:#fff;border:1px solid #f1ddd2;border-radius:20px;padding:14px;box-shadow:var(--shadow);flex-direction:column;align-items:flex-start}
      .nav-links.open{display:flex}
      .menu-toggle{display:inline-flex}
      .hero{padding-top:28px}
      .hero-grid,.split,.service-map,.review-grid,.price-grid,.service-network,.footer-grid,.grid-4,.grid-3,.steps,.hero-points,.stat-grid,.form{grid-template-columns:1fr}
      .hero-copy{padding:24px}
      .section-head{flex-direction:column;align-items:flex-start}
      .floating-contact{right:12px;bottom:12px}
      .backtop{right:12px;bottom:122px}
    }