:root{
      --bg:#f4fbf7;
      --surface:#ffffff;
      --surface-2:#eff9f4;
      --line:#d9eadf;
      --text:#183126;
      --muted:#5a6d62;
      --brand:#2aa66a;
      --brand-2:#63d49b;
      --accent:#dff7ea;
      --shadow:0 18px 40px rgba(26, 74, 51, .08);
      --radius:20px;
      --radius-sm:14px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:Arial,Helvetica,"PingFang SC","Microsoft YaHei",sans-serif;background:linear-gradient(180deg,#f7fcf9 0%,#eef8f2 100%);color:var(--text);line-height:1.65}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 32px));margin:0 auto}
    header{position:sticky;top:0;z-index:50;background:rgba(247,252,249,.9);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid rgba(217,234,223,.85)}
    .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 img{width:42px;height:42px;object-fit:contain;border-radius:12px;background:#fff;border:1px solid var(--line);padding:4px}
    .brand h1{margin:0;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted);font-weight:400;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:12px;padding:10px 12px;font-size:14px}
    .nav-links{display:flex;align-items:center;gap:16px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#305243;padding:8px 0;position:relative}
    .nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;background:linear-gradient(90deg,var(--brand),var(--brand-2));transform:scaleX(0);transform-origin:left;transition:.22s ease}
    .nav-links a:hover::after{transform:scaleX(1)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:14px;padding:12px 18px;font-weight:700;cursor:pointer;transition:.22s ease;box-shadow:none}
    .btn-primary{background:linear-gradient(135deg,var(--brand),#1f8e58);color:#fff;box-shadow:0 12px 24px rgba(42,166,106,.22)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(42,166,106,.28)}
    .btn-ghost{background:#fff;color:var(--text);border:1px solid var(--line)}
    .btn-ghost:hover{transform:translateY(-2px);border-color:#b9dfc7}
    main{display:block}
    section{padding:64px 0}
    .hero{padding:54px 0 42px;position:relative;overflow:hidden}
    .hero::before,.hero::after{content:"";position:absolute;border-radius:999px;filter:blur(4px);pointer-events:none}
    .hero::before{width:320px;height:320px;right:-100px;top:-70px;background:radial-gradient(circle,rgba(99,212,155,.22),rgba(99,212,155,0) 70%)}
    .hero::after{width:240px;height:240px;left:-90px;bottom:-70px;background:radial-gradient(circle,rgba(42,166,106,.16),rgba(42,166,106,0) 70%)}
    .hero-grid{display:grid;grid-template-columns:1.16fr .84fr;gap:28px;align-items:stretch}
    .hero-copy{background:linear-gradient(180deg,rgba(255,255,255,.88),rgba(255,255,255,.72));border:1px solid rgba(217,234,223,.9);border-radius:28px;padding:34px;box-shadow:var(--shadow);position:relative;overflow:hidden}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:#1f6b44;border:1px solid #ccebd9;border-radius:999px;padding:8px 14px;font-size:13px;font-weight:700}
    .hero h2{margin:18px 0 12px;font-size:clamp(34px,5vw,58px);line-height:1.08;letter-spacing:-.03em}
    .hero p{margin:0;color:var(--muted);font-size:16px;max-width:56ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:26px}
    .stat{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px 14px;box-shadow:0 10px 22px rgba(33,79,54,.05)}
    .stat strong{display:block;font-size:22px;color:#183126}
    .stat span{display:block;color:var(--muted);font-size:13px;margin-top:4px}
    .hero-panel{display:grid;gap:16px}
    .promo-card{background:linear-gradient(180deg,#fdfefe,#edf9f3);border:1px solid #d7ecdf;border-radius:24px;padding:22px;box-shadow:var(--shadow)}
    .promo-card h3{margin:0 0 10px;font-size:20px}
    .promo-list{list-style:none;padding:0;margin:0;display:grid;gap:10px}
    .promo-list li{display:flex;gap:10px;align-items:flex-start;color:#2e4a3b}
    .dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-2));margin-top:8px;flex:0 0 auto}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:18px;margin-bottom:22px}
    .section-head h3{margin:0;font-size:28px;line-height:1.2}
    .section-head p{margin:0;color:var(--muted);max-width:62ch}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .card{background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:0 12px 26px rgba(31,70,49,.06);transition:.22s ease}
    .card:hover{transform:translateY(-4px);box-shadow:0 20px 42px rgba(31,70,49,.1)}
    .card h4{margin:0 0 10px;font-size:18px}
    .card p{margin:0;color:var(--muted)}
    .chip-row{display:flex;flex-wrap:wrap;gap:10px}
    .chip{display:inline-flex;align-items:center;padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#28503d;font-size:13px}
    .section-soft{background:linear-gradient(180deg,rgba(239,249,244,.75),rgba(244,251,247,0))}
    .workflow{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .step{position:relative}
    .step .num{width:40px;height:40px;border-radius:14px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;display:grid;place-items:center;font-weight:800;margin-bottom:12px}
    .compare-wrap{overflow:auto;border-radius:24px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:900px}
    th,td{padding:16px 18px;border-bottom:1px solid #e6efe9;text-align:left;vertical-align:top}
    th{background:#f2fbf6;color:#23402f;font-size:14px}
    td{color:#395244;font-size:14px}
    .rating{font-size:18px;font-weight:800;color:#1f7f4f}
    .badge{display:inline-flex;align-items:center;border-radius:999px;padding:6px 10px;background:#eaf8f0;color:#1e6d45;font-size:12px;font-weight:700}
    .split{display:grid;grid-template-columns:1.05fr .95fr;gap:18px}
    .timeline{display:grid;gap:14px}
    .timeline-item{display:grid;grid-template-columns:22px 1fr;gap:14px;align-items:start}
    .timeline-item i{width:12px;height:12px;border-radius:50%;margin-top:7px;background:linear-gradient(135deg,var(--brand),var(--brand-2));box-shadow:0 0 0 6px rgba(42,166,106,.12)}
    .articles,.reviews,.faq-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .article a{color:#1b5d3a;font-weight:700}
    .quote{font-size:15px;color:#344e40}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .form-grid .full{grid-column:1/-1}
    label{display:block;font-size:14px;font-weight:700;color:#294637;margin-bottom:8px}
    input,select,textarea{width:100%;border:1px solid #d9eadf;background:#fff;border-radius:14px;padding:13px 14px;font:inherit;color:var(--text);outline:none;transition:.2s ease}
    input:focus,select:focus,textarea:focus{border-color:#8fd5af;box-shadow:0 0 0 4px rgba(99,212,155,.16)}
    textarea{min-height:132px;resize:vertical}
    .footer-links{display:flex;flex-wrap:wrap;gap:12px}
    .footer-links a{color:#1f6640}
    footer{padding:28px 0 34px;border-top:1px solid var(--line);background:#eff9f4;color:#274334}
    .footer-top{display:grid;grid-template-columns:1.2fr .8fr;gap:20px;align-items:start}
    .mini{color:var(--muted);font-size:14px}
    .floating{position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px}
    .floating a,.floating button{width:52px;height:52px;border-radius:16px;border:none;display:grid;place-items:center;box-shadow:var(--shadow);background:#fff;color:#1f6640;font-weight:800}
    .backtop{opacity:0;pointer-events:none;transform:translateY(8px);transition:.2s ease}
    .backtop.show{opacity:1;pointer-events:auto;transform:translateY(0)}
    .reveal{opacity:0;transform:translateY(16px);transition:.6s ease}
    .reveal.visible{opacity:1;transform:translateY(0)}
    details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px 18px;box-shadow:0 10px 20px rgba(31,70,49,.05)}
    details summary{cursor:pointer;font-weight:700;color:#23402f;list-style:none}
    details summary::-webkit-details-marker{display:none}
    details p{margin:10px 0 0;color:var(--muted)}
    .media-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .media-card{overflow:hidden;padding:0}
    .media-card img{width:100%;height:auto}
    .media-caption{padding:16px 18px}
    .service-map{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
    .service-map .chip{justify-content:center}
    .dual-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .note{font-size:13px;color:var(--muted)}
    @media (max-width: 1080px){
      .hero-grid,.split,.footer-top{grid-template-columns:1fr}
      .grid-4,.grid-3,.articles,.reviews,.faq-grid,.workflow,.media-grid,.service-map{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width: 760px){
      .menu-btn{display:inline-flex}
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:66px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:var(--shadow);flex-direction:column;align-items:flex-start;gap:10px}
      .nav-links.open{display:flex}
      .hero{padding-top:24px}
      .hero-copy{padding:24px}
      .hero-stats,.grid-4,.grid-3,.articles,.reviews,.faq-grid,.workflow,.media-grid,.service-map,.dual-list,.form-grid{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:flex-start}
      .brand h1{font-size:16px}
      section{padding:52px 0}
    }