:root{
      --bg:#f5fbf7;
      --panel:#ffffff;
      --panel-2:#eef8f2;
      --line:#d8e9de;
      --text:#183126;
      --muted:#5b7164;
      --brand:#2e9b6a;
      --brand-2:#58c48c;
      --accent:#e8fbef;
      --shadow:0 16px 40px rgba(25, 67, 45, .10);
      --radius:20px;
      --radius-sm:14px;
      --container: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;background:
      radial-gradient(circle at top left, rgba(88,196,140,.14), transparent 28%),
      radial-gradient(circle at top right, rgba(46,155,106,.10), transparent 22%),
      linear-gradient(180deg, #f8fcf9 0%, #f5fbf7 36%, #f7fbf8 100%);
      color:var(--text);line-height:1.65}
    a{color:var(--brand);text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(100% - 32px, var(--container));margin:0 auto}
    .topbar,.nav,.hero,.section,.footer{width:100%}
    .topbar{background:#eefaf2;border-bottom:1px solid var(--line);color:var(--muted);font-size:14px}
    .topbar .container{display:flex;justify-content:space-between;gap:16px;align-items:center;padding:10px 0;flex-wrap:wrap}
    header{position:sticky;top:0;z-index:50;background:rgba(245,251,247,.9);backdrop-filter:blur(14px);border-bottom:1px solid rgba(216,233,222,.7)}
    .nav .container{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;background:#fff;border-radius:12px;padding:6px;border:1px solid var(--line);box-shadow:0 8px 20px rgba(24,49,38,.06)}
    .brand-name{display:flex;flex-direction:column;min-width:0}
    .brand-name strong{font-size:18px;line-height:1.1}
    .brand-name span{font-size:12px;color:var(--muted)}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;color:var(--text)}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{color:var(--text);font-size:14px;padding:8px 10px;border-radius:999px;transition:.25s ease}
    .nav-links a:hover{background:var(--accent);color:var(--brand)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:999px;padding:12px 18px;font-weight:700;transition:.25s ease;cursor:pointer}
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 12px 24px rgba(46,155,106,.22)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 28px rgba(46,155,106,.28)}
    .btn-ghost{background:#fff;color:var(--text);border-color:var(--line)}
    .btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
    .hero{padding:34px 0 18px}
    .hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:22px;align-items:stretch}
    .hero-main,.hero-side,.card,.panel{background:rgba(255,255,255,.88);border:1px solid rgba(216,233,222,.85);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-main{padding:34px;position:relative;overflow:hidden}
    .hero-main:before,.hero-main:after{content:"";position:absolute;border-radius:999px;background:rgba(88,196,140,.14);filter:blur(2px)}
    .hero-main:before{width:260px;height:260px;right:-80px;top:-90px}
    .hero-main:after{width:180px;height:180px;right:28%;bottom:-80px}
    .kicker{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:var(--accent);color:var(--brand);font-weight:700;font-size:13px}
    h1{margin:16px 0 14px;font-size:clamp(30px,4vw,52px);line-height:1.08;letter-spacing:-.02em}
    .lead{margin:0;color:var(--muted);font-size:16px;max-width:62ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 18px}
    .hero-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:24px}
    .mini{padding:14px;border-radius:16px;background:#f7fcf8;border:1px solid var(--line)}
    .mini strong{display:block;font-size:18px}
    .mini span{font-size:12px;color:var(--muted)}
    .hero-side{padding:22px;display:grid;gap:14px}
    .side-stat{padding:18px;border-radius:18px;background:linear-gradient(180deg,#fbfffc,#eef9f2);border:1px solid var(--line)}
    .side-stat .num{font-size:28px;font-weight:800;color:var(--brand)}
    .side-stat p{margin:4px 0 0;color:var(--muted)}
    .side-badges{display:flex;flex-wrap:wrap;gap:10px}
    .badge{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:var(--text)}
    .section{padding:18px 0}
    .section h2{margin:0 0 14px;font-size:clamp(24px,3vw,34px);line-height:1.15}
    .section .sub{margin:0 0 20px;color:var(--muted);max-width:72ch}
    .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}
    .card{padding:20px}
    .card h3{margin:8px 0 8px;font-size:18px}
    .card p,.card li,.table-wrap{color:var(--muted)}
    .icon{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:var(--accent);color:var(--brand);font-weight:800}
    .pill-row{display:flex;flex-wrap:wrap;gap:10px}
    .chip{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px}
    .two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start}
    .steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .step{padding:18px;border-radius:18px;background:linear-gradient(180deg,#fff,#f5fbf7);border:1px solid var(--line)}
    .step .n{font-size:13px;color:var(--brand);font-weight:800}
    .table-wrap{overflow-x:auto;border-radius:18px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
    th{background:#f1faf4;color:var(--text)}
    tr:last-child td{border-bottom:none}
    .rating{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
    .stars{color:#f0a500;font-size:18px;letter-spacing:2px}
    details{background:#fff;border:1px solid var(--line);border-radius:16px;padding:0 16px}
    details+details{margin-top:12px}
    summary{cursor:pointer;list-style:none;padding:16px 0;font-weight:700;color:var(--text)}
    summary::-webkit-details-marker{display:none}
    details p{margin:0 0 16px;color:var(--muted)}
    .reviews{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .quote{position:relative}
    .quote:before{content:"“";position:absolute;left:14px;top:2px;font-size:42px;color:rgba(46,155,106,.16);font-weight:900}
    .quote .who{margin-top:14px;font-weight:700;color:var(--text)}
    .quote .role{font-size:13px;color:var(--muted)}
    .articles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .article a{font-weight:700;display:inline-block;margin-top:8px}
    .form-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:16px}
    form{display:grid;gap:12px}
    .field{display:grid;gap:6px}
    label{font-size:14px;font-weight:700}
    input,select,textarea{width:100%;padding:13px 14px;border:1px solid var(--line);border-radius:14px;background:#fff;color:var(--text);font:inherit;outline:none}
    input:focus,select:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(46,155,106,.12)}
    textarea{min-height:118px;resize:vertical}
    .contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .footer{margin-top:22px;background:#edf8f1;border-top:1px solid var(--line);color:var(--text)}
    .footer .container{padding:24px 0}
    .footer-top{display:grid;grid-template-columns:1.1fr .9fr 1fr;gap:16px}
    .footer a{color:var(--brand)}
    .foot-note{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:13px}
    .float-tools{position:fixed;right:16px;bottom:16px;display:grid;gap:10px;z-index:60}
    .float-tools a,.float-tools button{width:46px;height:46px;border-radius:14px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow);display:grid;place-items:center;color:var(--brand);font-weight:800;cursor:pointer}
    .reveal{opacity:0;transform:translateY(16px);transition:.6s ease}
    .reveal.show{opacity:1;transform:none}
    .map-tags{display:flex;flex-wrap:wrap;gap:10px}
    .timeline{display:grid;gap:12px}
    .timeline .item{display:grid;grid-template-columns:86px 1fr;gap:14px;padding:16px;border-radius:16px;background:#fff;border:1px solid var(--line)}
    .timeline .time{color:var(--brand);font-weight:800}
    .price-box{display:grid;gap:12px}
    .price{padding:16px;border:1px dashed rgba(46,155,106,.35);border-radius:16px;background:linear-gradient(180deg,#ffffff,#f3fbf6)}
    .toc{display:flex;flex-wrap:wrap;gap:10px}
    .toc a{padding:8px 11px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--text);font-size:13px}
    .image-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .image-row .card{padding:14px}
    .image-row img{border-radius:14px;border:1px solid var(--line)}
    .hidden-sm{display:block}
    @media (max-width: 980px){
      .hero-grid,.two-col,.form-grid,.footer-top,.reviews,.articles,.grid-4,.grid-3,.steps,.contact-grid,.image-row{grid-template-columns:1fr}
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:68px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:var(--shadow)}
      .nav-links.open{display:flex;flex-direction:column;align-items:flex-start}
      .menu-toggle{display:inline-flex}
      .hero-main{padding:24px}
      .hero-points{grid-template-columns:1fr}
      .hidden-sm{display:none}
      .timeline .item{grid-template-columns:1fr}
    }