:root{
      --bg:#f6faf4;
      --panel:#ffffff;
      --panel-2:#f0f8ef;
      --text:#17311f;
      --muted:#587064;
      --brand:#22c55e;
      --brand-2:#35e07a;
      --line:#dbe8dc;
      --shadow:0 16px 40px rgba(23,49,31,.08);
      --radius:22px;
      --max:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;background:radial-gradient(circle at top, #effaf0 0, #f6faf4 40%, #f9fbf8 100%);color:var(--text)}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--max),calc(100% - 32px));margin:0 auto}
    .topbar{position:sticky;top:0;z-index:50;background:rgba(246,250,244,.9);backdrop-filter:blur(14px);border-bottom:1px solid rgba(219,232,220,.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 .ai-page-logo{width:44px;height:44px;border-radius:12px;object-fit:contain;background:#fff;border:1px solid var(--line);padding:6px;box-shadow:0 8px 20px rgba(0,0,0,.04)}
    .brand-text{min-width:0}
    .brand-text strong{display:block;font-size:18px;line-height:1.1}
    .brand-text span{display:block;font-size:12px;color:var(--muted);margin-top:3px}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .menu-btn{display:none;border:1px solid var(--line);background:#fff;color:var(--text);border-radius:14px;padding:10px 12px;font-weight:700}
    .nav-links{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:12px}
    .nav-links a{font-size:14px;color:var(--muted);padding:9px 11px;border-radius:999px;transition:.2s ease}
    .nav-links a:hover,.nav-links a.active{background:rgba(34,197,94,.12);color:var(--text)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:14px;padding:12px 16px;font-weight:700;cursor:pointer;transition:.25s ease}
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 14px 30px rgba(34,197,94,.28)}
    .btn-ghost{background:#fff;color:var(--text);border:1px solid var(--line)}
    .hero{padding:34px 0 18px}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:20px;align-items:stretch}
    .hero-main,.hero-side,.card,.section-card,.quote,.faq-item,.form-card,.footer-card{background:linear-gradient(180deg,#fff, #fbfefb);border:1px solid rgba(219,232,220,.95);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-main{padding:34px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(34,197,94,.12);color:#1d6d38;border:1px solid rgba(34,197,94,.16);padding:8px 12px;border-radius:999px;font-size:13px;font-weight:700}
    h1{margin:16px 0 12px;font-size:clamp(34px,4vw,56px);line-height:1.05;letter-spacing:-.02em}
    .lead{font-size:17px;line-height:1.8;color:var(--muted);max-width:60ch;margin:0 0 22px}
    .hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px}
    .mini-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
    .mini-stats .card{padding:18px;background:linear-gradient(180deg,#fff, #f6fbf6)}
    .mini-stats strong{display:block;font-size:22px}
    .mini-stats span{display:block;color:var(--muted);font-size:13px;margin-top:6px;line-height:1.5}
    .hero-side{padding:22px;background:linear-gradient(180deg,#f5fff7,#fff)}
    .side-panel{display:grid;gap:12px}
    .badge-grid{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--text);font-size:13px}
    .hero-box{padding:18px;border-radius:18px;background:linear-gradient(135deg,rgba(34,197,94,.08),rgba(53,224,122,.15));border:1px solid rgba(34,197,94,.12)}
    .hero-box h2{margin:0 0 8px;font-size:18px}
    .hero-box p{margin:0;color:var(--muted);line-height:1.7;font-size:14px}
    section{padding:18px 0}
    .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:1.2}
    .section-head p{margin:0;color:var(--muted);line-height:1.7;max-width:60ch}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .card{padding:22px}
    .card h3{margin:0 0 10px;font-size:18px}
    .card p,.card li{color:var(--muted);line-height:1.75}
    .icon-dot{width:12px;height:12px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-2));box-shadow:0 0 0 6px rgba(34,197,94,.12);display:inline-block;margin-right:10px}
    .flow{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .step{position:relative;padding:22px 20px 18px}
    .step strong{display:inline-flex;width:34px;height:34px;border-radius:12px;align-items:center;justify-content:center;background:rgba(34,197,94,.12);color:#1f7a41;margin-bottom:12px}
    .table-wrap{overflow:auto;border-radius:22px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:16px 14px;border-bottom:1px solid #edf2ee;text-align:left;vertical-align:top}
    th{background:#f3fbf3;color:#184020;font-size:14px}
    td{color:var(--muted);font-size:14px;line-height:1.7}
    .rating{font-size:20px;color:#1e7a43;font-weight:800}
    .faq{display:grid;gap:12px}
    .faq-item button{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;background:none;border:none;padding:18px 20px;color:var(--text);font-size:16px;font-weight:700;text-align:left;cursor:pointer}
    .faq-item .answer{display:none;padding:0 20px 18px;color:var(--muted);line-height:1.8}
    .faq-item.open .answer{display:block}
    .faq-item.open .chev{transform:rotate(180deg)}
    .chev{transition:.2s ease}
    .testimonials,.news-list,.links-cloud{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .quote{padding:22px}
    .quote .role{font-size:13px;color:#1d6d38;font-weight:700;margin-bottom:10px}
    .quote p{margin:0 0 14px;color:var(--muted);line-height:1.8}
    .quote strong{font-size:15px}
    .news-item,.network-item{padding:18px 20px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .news-item a{color:#17311f;font-weight:700}
    .news-item p{margin:8px 0 0;color:var(--muted);line-height:1.7;font-size:14px}
    .form-card{padding:24px}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .field{display:grid;gap:8px}
    .field label{font-size:14px;font-weight:700}
    input,select,textarea{width:100%;border:1px solid var(--line);border-radius:14px;background:#fff;padding:13px 14px;font:inherit;color:var(--text);outline:none}
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#88d7a0;box-shadow:0 0 0 4px rgba(34,197,94,.08)}
    .two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .footer{padding:14px 0 28px}
    .footer-card{padding:22px}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:16px}
    .footer small,.footer p,.footer a{color:var(--muted);line-height:1.7}
    .floating{position:fixed;right:18px;bottom:18px;z-index:60;display:grid;gap:10px}
    .float-btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 14px;border-radius:16px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);font-weight:700;color:var(--text)}
    .reveal{opacity:0;transform:translateY(16px);transition:.5s ease}
    .reveal.in{opacity:1;transform:none}
    .media-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .media-strip img{width:100%;border-radius:18px;border:1px solid var(--line);background:#fff}
    .center{text-align:center}
    .muted{color:var(--muted)}
    .service-net{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .service-net .network-item strong{display:block;margin-bottom:6px}
    @media (max-width: 960px){
      .hero-grid,.grid-3,.grid-4,.flow,.testimonials,.news-list,.links-cloud,.two-col,.footer-grid,.media-strip,.service-net{grid-template-columns:1fr 1fr}
      .section-head{align-items:flex-start;flex-direction:column}
      .menu-btn{display:inline-flex}
      .nav-links{display:none;width:100%;padding:10px 0 0}
      .nav-links.open{display:flex}
      .nav{flex-wrap:wrap}
    }
    @media (max-width: 640px){
      .container{width:min(var(--max),calc(100% - 20px))}
      .hero-main,.hero-side,.card,.section-card,.quote,.faq-item,.form-card,.footer-card{border-radius:20px}
      .hero{padding-top:18px}
      .hero-grid,.grid-3,.grid-4,.flow,.testimonials,.news-list,.links-cloud,.two-col,.footer-grid,.media-strip,.service-net,.mini-stats,.form-grid{grid-template-columns:1fr}
      .hero-main{padding:22px}
      h1{font-size:30px}
      .lead{font-size:15px}
      .nav-actions{width:100%;justify-content:space-between}
      .nav-links a{padding:10px 12px}
      .floating{right:12px;bottom:12px}
    }