:root{
      --bg:#fff7ef;
      --bg2:#f4f7ff;
      --card:#ffffff;
      --text:#172033;
      --muted:#5f6b84;
      --line:#e7ebf3;
      --brand:#ff5b2e;
      --brand2:#ffb100;
      --brand3:#3a66ff;
      --shadow:0 18px 40px rgba(22,35,72,.10);
      --shadow2:0 10px 24px rgba(255,91,46,.14);
      --radius:20px;
      --radius2:28px;
      --max: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 10% 0%, rgba(255,91,46,.12), transparent 28%),
        radial-gradient(circle at 90% 10%, rgba(58,102,255,.12), transparent 24%),
        linear-gradient(180deg, var(--bg), #ffffff 45%, #fffaf5);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    .container{width:min(var(--max), calc(100% - 32px));margin:0 auto}
    .topbar{
      position:sticky;top:0;z-index:50;
      backdrop-filter:saturate(180%) blur(14px);
      background:rgba(255,250,244,.84);
      border-bottom:1px solid rgba(231,235,243,.8);
    }
    .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{
      width:46px;height:46px;border-radius:14px;overflow:hidden;
      background:#fff;box-shadow:var(--shadow2);flex:none;
      display:flex;align-items:center;justify-content:center;padding:6px;
    }
    .brand h1{font-size:16px;line-height:1.2;margin:0;font-weight:800}
    .brand p{margin:4px 0 0;color:var(--muted);font-size:12px}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:var(--muted);font-weight:600}
    .nav-links a:hover{color:var(--brand)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:none;border-radius:999px;padding:12px 16px;
      font-weight:700;font-size:14px;cursor:pointer;transition:.25s ease;
      box-shadow:0 10px 18px rgba(0,0,0,.06);
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),#ff7f4d);color:#fff}
    .btn-ghost{background:#fff;color:var(--text);border:1px solid var(--line)}
    .btn:hover{transform:translateY(-2px);box-shadow:0 14px 24px rgba(0,0,0,.10)}
    .menu-btn{display:none}
    .hero{padding:32px 0 18px}
    .hero-grid{
      display:grid;grid-template-columns:1.1fr .9fr;gap:22px;align-items:stretch
    }
    .hero-main,.hero-side,.panel,.card,.faq-item,.testimonial,.article,.step,.service-card,.compare-box,.form-box,.stats,.timeline,.price-box,.network-box,.tag-box,.review-box{
      background:var(--card);border:1px solid rgba(231,235,243,.95);border-radius:var(--radius2);box-shadow:var(--shadow)
    }
    .hero-main{padding:32px;position:relative;overflow:hidden}
    .hero-main:before,.hero-main:after{
      content:"";position:absolute;border-radius:999px;pointer-events:none
    }
    .hero-main:before{width:260px;height:260px;background:radial-gradient(circle, rgba(255,91,46,.16), transparent 70%);right:-70px;top:-80px}
    .hero-main:after{width:220px;height:220px;background:radial-gradient(circle, rgba(58,102,255,.14), transparent 72%);right:110px;bottom:-120px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(255,91,46,.10);color:#d54219;border-radius:999px;padding:8px 12px;font-size:13px;font-weight:700}
    .hero h2{font-size:clamp(30px,5vw,52px);line-height:1.06;margin:18px 0 14px;font-weight:900;letter-spacing:-.03em}
    .hero p{margin:0;color:var(--muted);line-height:1.8;font-size:16px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
    .meta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
    .meta-chip{padding:10px 12px;border-radius:999px;background:#f7f9ff;border:1px solid var(--line);color:#32405f;font-size:13px;font-weight:600}
    .hero-side{padding:22px}
    .hero-figure{
      background:linear-gradient(180deg,#fff6ee,#ffffff);
      border:1px solid #f0d7c4;border-radius:24px;padding:18px;
    }
    .hero-figure h3{margin:0 0 12px;font-size:17px}
    .figure-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .mini{
      border-radius:18px;padding:14px;background:#fff;border:1px solid var(--line)
    }
    .mini strong{display:block;font-size:18px;margin-bottom:6px}
    .mini span{font-size:13px;color:var(--muted);line-height:1.5}
    .home-link{color:var(--brand3);font-weight:800}
    section{padding:22px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:16px}
    .section-head h3{margin:0;font-size:28px}
    .section-head p{margin:0;color:var(--muted);max-width:720px;line-height:1.7}
    .stats{
      padding:18px;display:grid;grid-template-columns:repeat(4,1fr);gap:14px
    }
    .stat{padding:18px;border-radius:18px;background:linear-gradient(180deg,#fff,#fbfcff);border:1px solid var(--line)}
    .stat strong{display:block;font-size:26px;margin-bottom:8px}
    .stat span{color:var(--muted);font-size:13px;line-height:1.5}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .card,.service-card,.step,.article,.testimonial,.faq-item,.compare-box,.form-box,.panel,.price-box,.network-box,.tag-box,.review-box{padding:20px}
    .card h4,.service-card h4,.step h4,.article h4,.testimonial h4,.price-box h4,.network-box h4,.tag-box h4,.review-box h4{margin:0 0 10px;font-size:18px}
    .card p,.service-card p,.step p,.article p,.testimonial p,.price-box p,.network-box p,.tag-box p,.review-box p{margin:0;color:var(--muted);line-height:1.7}
    .icon{
      width:44px;height:44px;border-radius:14px;display:flex;align-items:center;justify-content:center;
      background:linear-gradient(135deg,rgba(255,91,46,.14),rgba(58,102,255,.12));margin-bottom:14px;font-size:20px
    }
    .service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .pill-row{display:flex;flex-wrap:wrap;gap:10px}
    .pill{padding:9px 12px;background:#f6f8ff;border:1px solid var(--line);border-radius:999px;font-size:13px;color:#34415d;font-weight:600}
    .compare-table{width:100%;border-collapse:collapse;overflow:hidden;border-radius:18px}
    .compare-wrap{overflow:auto;border-radius:18px;border:1px solid var(--line)}
    .compare-table th,.compare-table td{padding:14px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;font-size:14px}
    .compare-table th{background:#fff4ea;color:#8f371b}
    .compare-table tr:last-child td{border-bottom:none}
    .highlight{color:#d54219;font-weight:800}
    .timeline{padding:20px}
    .timeline-list{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .timeline-item{
      padding:18px;border-radius:18px;background:#fff;border:1px solid var(--line);position:relative
    }
    .timeline-item:before{
      content:"";position:absolute;left:18px;top:18px;width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2))
    }
    .timeline-item strong{display:block;padding-left:22px;margin-bottom:10px}
    .timeline-item p{margin:0;color:var(--muted);line-height:1.7}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{
      width:100%;background:none;border:none;padding:18px 20px;text-align:left;font-size:15px;font-weight:800;color:var(--text);cursor:pointer;
      display:flex;justify-content:space-between;align-items:center;gap:14px
    }
    .faq-a{padding:0 20px 18px;color:var(--muted);line-height:1.8;display:none}
    .faq-item.active .faq-a{display:block}
    .faq-item.active .chev{transform:rotate(180deg)}
    .chev{transition:.2s ease;color:var(--brand)}
    .testimonials,.articles,.faqs,.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .article a{display:inline-flex;margin-top:12px;color:var(--brand3);font-weight:700}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .field{display:flex;flex-direction:column;gap:8px}
    .field label{font-size:13px;font-weight:700;color:#2e3c58}
    .field input,.field select,.field textarea{
      width:100%;border:1px solid var(--line);border-radius:14px;padding:13px 14px;font:inherit;background:#fff;color:var(--text);outline:none
    }
    .field textarea{min-height:120px;resize:vertical}
    .field input:focus,.field select:focus,.field textarea:focus{border-color:rgba(255,91,46,.5);box-shadow:0 0 0 4px rgba(255,91,46,.08)}
    .form-actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-top:14px}
    .footer{
      margin-top:10px;padding:24px 0 34px;border-top:1px solid rgba(231,235,243,.8);background:linear-gradient(180deg,#fffdf9,#fff7ef)
    }
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}
    .footer a{color:#20355c}
    .footer a:hover{color:var(--brand)}
    .copyright{margin-top:16px;color:var(--muted);font-size:13px;line-height:1.7}
    .float-tools{
      position:fixed;right:16px;bottom:16px;z-index:60;display:flex;flex-direction:column;gap:10px
    }
    .float-tools a,.float-tools button{
      width:48px;height:48px;border:none;border-radius:16px;display:flex;align-items:center;justify-content:center;
      background:linear-gradient(135deg,var(--brand),#ff8357);color:#fff;box-shadow:var(--shadow2);cursor:pointer
    }
    .backtop{display:none}
    .floating-kefu{
      position:fixed;left:16px;bottom:16px;z-index:60;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:var(--shadow);width:160px
    }
    .floating-kefu img{border-radius:12px;margin-bottom:8px}
    .floating-kefu strong{display:block;font-size:13px;margin-bottom:2px}
    .floating-kefu span{font-size:12px;color:var(--muted)}
    .mobile-only{display:none}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud a{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:#32405d;font-weight:600}
    .split-note{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}
    .contact-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .contact-item{padding:16px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .contact-item strong{display:block;margin-bottom:6px}
    .scroll-reveal{opacity:0;transform:translateY(16px);transition:.7s ease}
    .scroll-reveal.in{opacity:1;transform:none}
    @media (max-width: 980px){
      .hero-grid,.footer-grid,.split-note,.grid-3,.grid-2,.testimonials,.articles,.faqs,.reviews,.service-grid,.timeline-list,.stats,.contact-list{grid-template-columns:1fr 1fr}
      .form-grid{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-btn{display:inline-flex}
      .nav.open .nav-links{
        display:flex;position:absolute;left:0;right:0;top:100%;background:rgba(255,252,247,.98);border-bottom:1px solid var(--line);
        padding:14px 16px;flex-direction:column;align-items:flex-start
      }
      .nav{position:relative}
    }
    @media (max-width: 720px){
      .hero-grid,.footer-grid,.split-note,.grid-3,.grid-2,.testimonials,.articles,.faqs,.reviews,.service-grid,.timeline-list,.stats,.contact-list{grid-template-columns:1fr}
      .hero-main,.hero-side{padding:22px}
      .section-head{flex-direction:column;align-items:flex-start}
      .floating-kefu{display:none}
      .mobile-only{display:flex}
      .nav-actions .btn-ghost{display:none}
      .btn{width:auto}
    }