:root{
      --bg:#f5fbf6;
      --panel:#ffffff;
      --panel-2:#f1fff4;
      --text:#163024;
      --muted:#5b6f63;
      --line:#dcecdf;
      --brand:#12c45f;
      --brand-2:#0a9f4c;
      --accent:#7af0a6;
      --shadow:0 18px 40px rgba(15, 88, 44, .10);
      --radius:18px;
      --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 top left, rgba(18,196,95,.12), transparent 28%),
        radial-gradient(circle at top right, rgba(122,240,166,.16), transparent 24%),
        linear-gradient(180deg, #f9fffa 0%, #f4fbf5 48%, #f8fcf9 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
    }
    .topbar{
      position:sticky;
      top:0;
      z-index:30;
      backdrop-filter:blur(14px);
      background:rgba(249,255,250,.82);
      border-bottom:1px solid rgba(220,236,223,.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 .ai-page-logo{
      width:42px;
      height:42px;
      object-fit:contain;
      border-radius:12px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:0 8px 20px rgba(18,196,95,.08);
      padding:4px;
    }
    .brand strong{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted);margin-top:3px}
    .nav-links{
      display:flex;
      flex-wrap:wrap;
      justify-content:center;
      gap:8px 10px;
      align-items:center;
    }
    .nav-links a{
      font-size:13px;
      color:#264334;
      padding:8px 10px;
      border-radius:999px;
      transition:.25s ease;
    }
    .nav-links a:hover,.nav-links a:focus-visible{
      background:rgba(18,196,95,.10);
      color:var(--brand-2);
      transform:translateY(-1px);
      outline:none;
    }
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn,.btn-secondary,.btn-ghost,.btn-mini{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      border:1px solid transparent;
      border-radius:999px;
      font-weight:700;
      cursor:pointer;
      transition:.25s ease;
      white-space:nowrap;
    }
    .btn{background:linear-gradient(135deg,var(--brand),#26d96d);color:#08311a;padding:12px 18px;box-shadow:0 12px 28px rgba(18,196,95,.18)}
    .btn:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(18,196,95,.24)}
    .btn-secondary{background:#fff;border-color:var(--line);color:var(--text);padding:11px 16px}
    .btn-secondary:hover,.btn-ghost:hover{border-color:#bfe9cb;transform:translateY(-1px)}
    .btn-ghost{background:rgba(255,255,255,.78);border-color:#cfe8d5;color:var(--text);padding:10px 14px}
    .btn-mini{padding:9px 13px;font-size:13px}
    .menu-btn{
      display:none;
      border:1px solid var(--line);
      background:#fff;
      color:var(--text);
      padding:10px 12px;
      border-radius:12px;
    }
    .hero{
      padding:42px 0 18px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:1.22fr .78fr;
      gap:18px;
      align-items:stretch;
    }
    .hero-main,.hero-side,.card,.panel,.review,.faq-item,.form-card,.case-card,.article-card,.price-card,.metric,.timeline-item,.compare-wrap,.table-card{
      background:linear-gradient(180deg, rgba(255,255,255,.98), rgba(243,255,245,.96));
      border:1px solid rgba(220,236,223,.88);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .hero-main{
      padding:30px;
      position:relative;
      overflow:hidden;
    }
    .hero-main:before{
      content:"";
      position:absolute;
      inset:auto -10% -30% auto;
      width:320px;height:320px;
      border-radius:50%;
      background:radial-gradient(circle, rgba(18,196,95,.20), rgba(18,196,95,0) 65%);
      pointer-events:none;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(18,196,95,.10);
      color:#11783e;
      border:1px solid rgba(18,196,95,.16);
      font-size:13px;
      font-weight:700;
    }
    h1{
      margin:16px 0 12px;
      font-size:clamp(30px, 5vw, 52px);
      line-height:1.05;
      letter-spacing:-.02em;
    }
    .lead{
      margin:0;
      color:var(--muted);
      font-size:16px;
      line-height:1.9;
      max-width:60ch;
    }
    .hero-points{
      display:grid;
      grid-template-columns:repeat(3, minmax(0,1fr));
      gap:12px;
      margin:22px 0 22px;
    }
    .hero-point{
      padding:14px;
      border-radius:16px;
      background:#fff;
      border:1px solid var(--line);
      min-height:96px;
    }
    .hero-point strong{display:block;font-size:15px}
    .hero-point span{display:block;color:var(--muted);font-size:13px;line-height:1.7;margin-top:6px}
    .hero-cta{display:flex;flex-wrap:wrap;gap:10px}
    .hero-side{
      padding:22px;
      display:grid;
      gap:14px;
    }
    .side-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      padding:7px 10px;
      border-radius:999px;
      background:#edfdf1;
      color:#137c40;
      border:1px solid #ccefd7;
      font-size:12px;
      font-weight:700;
    }
    .stat-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:12px;
    }
    .metric,.price-card{
      padding:18px;
      background:#fff;
    }
    .metric strong,.price-card strong{display:block;font-size:28px;line-height:1;color:#0d3a22}
    .metric span,.price-card span{display:block;margin-top:8px;color:var(--muted);font-size:13px;line-height:1.6}
    section{padding:20px 0}
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:18px;
      margin-bottom:14px;
    }
    .section-head h2{
      margin:0;
      font-size:clamp(22px, 2.7vw, 34px);
      line-height:1.2;
    }
    .section-head p{margin:0;color:var(--muted);max-width:62ch;line-height:1.8}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .card,.panel,.faq-item,.form-card,.case-card,.article-card,.review,.table-card,.compare-wrap{padding:18px}
    .card h3,.panel h3,.form-card h3,.case-card h3,.article-card h3,.review h3{margin:0 0 10px;font-size:18px}
    .card p,.panel p,.review p,.article-card p,.case-card p,.form-card p{margin:0;color:var(--muted);line-height:1.8}
    .icon-dot{
      width:40px;height:40px;border-radius:12px;
      background:linear-gradient(135deg, rgba(18,196,95,.16), rgba(18,196,95,.06));
      display:grid;place-items:center;
      color:var(--brand-2);
      font-weight:900;
      margin-bottom:14px;
      border:1px solid #d6efdb;
    }
    .chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
    .chip{
      font-size:12px;
      padding:7px 10px;
      border-radius:999px;
      background:#f3fbf5;
      color:#24513a;
      border:1px solid #dbeadf;
    }
    .table-wrap{overflow-x:auto}
    table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      min-width:760px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:16px;
      overflow:hidden;
    }
    th,td{
      padding:14px 12px;
      border-bottom:1px solid var(--line);
      text-align:left;
      vertical-align:top;
      font-size:14px;
    }
    th{background:#f3fbf5;color:#214033}
    tr:last-child td{border-bottom:none}
    .highlight{
      background:linear-gradient(135deg, rgba(18,196,95,.12), rgba(18,196,95,.05));
      color:#115933;
      font-weight:700;
    }
    .timeline{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:14px;
    }
    .timeline-item{
      padding:18px;
      position:relative;
    }
    .timeline-item strong{
      display:inline-flex;
      width:34px;height:34px;
      border-radius:999px;
      align-items:center;justify-content:center;
      background:#eaffef;color:#11783e;
      margin-bottom:12px;
    }
    .timeline-item h3{margin:0 0 8px;font-size:17px}
    .timeline-item p{margin:0;color:var(--muted);line-height:1.75}
    .faq-list{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{
      width:100%;
      background:transparent;
      border:0;
      padding:18px;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:14px;
      color:var(--text);
      font-size:16px;
      font-weight:700;
      cursor:pointer;
      text-align:left;
    }
    .faq-a{
      max-height:0;
      overflow:hidden;
      transition:max-height .3s ease;
      border-top:1px solid transparent;
    }
    .faq-a p{margin:0;padding:0 18px 18px;color:var(--muted);line-height:1.8}
    .faq-item.open .faq-a{max-height:220px;border-top-color:var(--line)}
    .faq-item.open .faq-q .chev{transform:rotate(180deg)}
    .chev{transition:.25s ease}
    .review-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .stars{color:#f5b400;letter-spacing:2px;font-size:15px;margin-bottom:10px}
    .review .meta{margin-top:14px;color:#6c7d72;font-size:13px}
    .articles,.cases{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .article-card time,.case-card .tag{display:inline-flex;margin-bottom:12px;font-size:12px;color:#11633a;background:#edfdf1;border:1px solid #d7efde;padding:6px 10px;border-radius:999px}
    .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);
      color:#284434;
      font-size:13px;
      transition:.25s ease;
    }
    .tag-cloud a:hover{transform:translateY(-1px);border-color:#bfe9cb;background:#f3fbf5}
    .contact-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:14px}
    form{
      display:grid;
      gap:12px;
    }
    .fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
    label{display:block;font-size:13px;font-weight:700;margin-bottom:6px;color:#274233}
    input,select,textarea{
      width:100%;
      border:1px solid #d6e6d9;
      background:#fff;
      color:var(--text);
      border-radius:14px;
      padding:12px 13px;
      font:inherit;
      outline:none;
      transition:.2s ease;
    }
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{
      border-color:#7ddfa2;
      box-shadow:0 0 0 4px rgba(18,196,95,.10);
    }
    .contact-box{
      display:grid;
      gap:14px;
    }
    .contact-list{
      display:grid;
      gap:12px;
    }
    .contact-item{
      padding:14px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:16px;
      display:flex;
      justify-content:space-between;
      gap:12px;
      align-items:flex-start;
    }
    .contact-item strong{display:block;margin-bottom:4px}
    .contact-item span{color:var(--muted);font-size:13px;line-height:1.7}
    footer{
      margin-top:18px;
      padding:24px 0 30px;
      border-top:1px solid rgba(220,236,223,.9);
      background:#eff8f1;
      color:#1f3529;
    }
    footer a{color:#136f3f}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:16px}
    .footer-note{color:#5c6d62;line-height:1.8;font-size:13px}
    .footer-links{display:flex;flex-wrap:wrap;gap:8px}
    .footer-links a{
      padding:7px 10px;
      border-radius:999px;
      background:#fff;
      border:1px solid var(--line);
    }
    .floating{
      position:fixed;
      right:16px;
      bottom:16px;
      z-index:40;
      display:grid;
      gap:10px;
    }
    .floating a,.floating button{
      width:48px;height:48px;
      border-radius:14px;
      border:1px solid #cfe8d5;
      background:#fff;
      box-shadow:0 12px 24px rgba(22,48,36,.10);
      display:grid;
      place-items:center;
      color:#166b3f;
      cursor:pointer;
    }
    .mobile-menu{
      display:none;
      padding:0 0 14px;
    }
    .mobile-menu.open{display:block}
    .mobile-menu .nav-links{
      justify-content:flex-start;
      padding:10px 0 14px;
    }
    .scroll-reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease, transform .6s ease}
    .scroll-reveal.in-view{opacity:1;transform:none}
    .qr{
      width:170px;
      border-radius:18px;
      border:1px solid var(--line);
      background:#fff;
      padding:10px;
    }
    .note-bar{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
      margin-top:16px;
      color:var(--muted);
      font-size:13px;
    }
    .compare-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
      align-items:stretch;
    }
    .rating{
      display:grid;
      gap:10px;
      padding:18px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:16px;
    }
    .rating strong{font-size:36px;line-height:1;color:#0f6f39}
    .rating small{color:var(--muted)}
    .divider{height:1px;background:var(--line);margin:14px 0}
    @media (max-width: 1024px){
      .hero-grid,.grid-3,.grid-2,.timeline,.review-grid,.articles,.cases,.contact-grid,.footer-grid,.compare-grid{grid-template-columns:1fr}
      .hero-points,.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .nav-links{display:none}
      .menu-btn{display:inline-flex}
      .mobile-menu{display:block}
    }
    @media (max-width: 720px){
      .container{width:min(var(--container), calc(100% - 24px))}
      .hero{padding-top:22px}
      .hero-main,.hero-side,.card,.panel,.faq-item,.form-card,.case-card,.article-card,.review,.table-card,.compare-wrap{padding:16px}
      .hero-points,.stat-grid,.fields{grid-template-columns:1fr}
      .section-head{align-items:flex-start;flex-direction:column}
      .nav{padding:12px 0}
      .brand strong{font-size:16px}
      .floating{right:12px;bottom:12px}
      table{min-width:860px}
    }