:root{
      --bg:#f3f8f4;
      --panel:#ffffff;
      --panel-2:#f7fbf8;
      --text:#1f2a24;
      --muted:#5e6f66;
      --line:#dce8df;
      --primary:#37b48a;
      --primary-2:#6ed3b1;
      --accent:#1f8f6a;
      --shadow:0 14px 36px rgba(31,42,36,.08);
      --shadow-2:0 18px 48px rgba(55,180,138,.16);
      --radius:20px;
      --max: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;background:linear-gradient(180deg,#f7fbf8 0%,#eef7f1 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(247,251,248,.86);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,232,223,.8)}
    .nav{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:76px}
    .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-text{display:flex;flex-direction:column;line-height:1.15}
    .brand-text strong{font-size:18px}
    .brand-text span{font-size:12px;color:var(--muted)}
    .nav-links{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:var(--text);padding:8px 10px;border-radius:999px;transition:.2s}
    .nav-links a:hover{background:#e6f5ee;color:var(--accent)}
    .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 18px;font-weight:700;cursor:pointer;transition:.25s ease;white-space:nowrap}
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:var(--shadow-2)}
    .btn-primary:hover{transform:translateY(-2px)}
    .btn-ghost{background:#fff;color:var(--text);border:1px solid var(--line)}
    .btn-ghost:hover{border-color:#bfe3d5;transform:translateY(-2px)}
    .menu-toggle{display:none;background:#fff;border:1px solid var(--line);width:44px;height:44px;border-radius:14px;align-items:center;justify-content:center}
    .menu-toggle span{display:block;width:18px;height:2px;background:var(--text);position:relative}
    .menu-toggle span:before,.menu-toggle span:after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text)}
    .menu-toggle span:before{top:-6px}.menu-toggle span:after{top:6px}
    .hero{padding:54px 0 26px;position:relative;overflow:hidden}
    .hero:before,.hero:after{content:"";position:absolute;border-radius:50%;background:radial-gradient(circle,rgba(110,211,177,.25),rgba(110,211,177,0) 65%)}
    .hero:before{width:360px;height:360px;right:-120px;top:-90px}
    .hero:after{width:280px;height:280px;left:-120px;bottom:-80px}
    .hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:24px;align-items:center}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:#e7f7ef;color:#1a7d5c;padding:8px 14px;border-radius:999px;font-size:13px;font-weight:700}
    h1{font-size:clamp(32px,5vw,56px);line-height:1.08;margin:18px 0 16px;letter-spacing:-.02em}
    .hero p{color:var(--muted);font-size:17px;line-height:1.8;margin:0 0 22px;max-width:56ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:20px}
    .hero-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
    .mini-card{background:rgba(255,255,255,.85);border:1px solid var(--line);border-radius:18px;padding:14px 16px;box-shadow:var(--shadow)}
    .mini-card strong{display:block;font-size:18px;margin-bottom:4px}
    .mini-card span{font-size:13px;color:var(--muted)}
    .hero-panel{background:linear-gradient(180deg,#ffffff 0%,#f7fbf8 100%);border:1px solid var(--line);border-radius:28px;padding:22px;box-shadow:var(--shadow);position:relative}
    .hero-panel .topline{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:18px}
    .badge{display:inline-flex;align-items:center;padding:8px 12px;border-radius:999px;background:#e9f8f1;color:#16785a;font-size:12px;font-weight:700}
    .grid-stat{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
    .stat{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px}
    .stat strong{display:block;font-size:24px;color:var(--accent)}
    .stat span{font-size:13px;color:var(--muted)}
    .section{padding:24px 0}
    .section h2{font-size:clamp(24px,3vw,36px);margin:0 0 10px}
    .section .lead{margin:0 0 18px;color:var(--muted);line-height:1.8}
    .grid-4,.grid-3,.grid-2{display:grid;gap:16px}
    .grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
    .grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
    .grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
    .card{background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:var(--shadow);transition:.25s ease}
    .card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
    .card h3{margin:0 0 10px;font-size:18px}
    .card p,.card li{color:var(--muted);line-height:1.75}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span{padding:9px 12px;border-radius:999px;background:#edf8f2;border:1px solid #d6eadf;font-size:13px;color:#2b6650}
    .timeline{display:grid;gap:12px}
    .step{display:flex;gap:14px;align-items:flex-start;padding:16px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .step b{width:34px;height:34px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;display:inline-flex;align-items:center;justify-content:center;flex:none}
    .comparison{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;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
    th{background:#f2faf5;font-size:14px}
    td{color:var(--muted)}
    .score{color:var(--accent);font-weight:800}
    .faq details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px 18px}
    .faq details+details{margin-top:12px}
    .faq summary{cursor:pointer;font-weight:700;list-style:none}
    .faq summary::-webkit-details-marker{display:none}
    .faq p{margin:12px 0 0;color:var(--muted);line-height:1.75}
    .review{display:flex;flex-direction:column;gap:12px}
    .review-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
    .stars{color:#f0b429;font-size:15px;letter-spacing:2px}
    .avatar{width:42px;height:42px;border-radius:14px;background:#e9f8f1;color:#1b7d5e;display:inline-flex;align-items:center;justify-content:center;font-weight:800}
    .media-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .media-grid img{border-radius:20px;border:1px solid var(--line);box-shadow:var(--shadow)}
    .news-list,.link-list{display:grid;gap:10px}
    .news-list a,.link-list a{display:flex;justify-content:space-between;gap:12px;padding:14px 16px;border:1px solid var(--line);border-radius:16px;background:#fff;color:var(--text)}
    .news-list a span,.link-list a span{color:var(--muted)}
    .form-wrap{display:grid;grid-template-columns:1fr .88fr;gap:16px;align-items:start}
    form{display:grid;gap:12px}
    .field{display:grid;gap:8px}
    .field label{font-size:14px;font-weight:700}
    .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 input:focus,.field select:focus,.field textarea:focus{border-color:#8fd8bc;box-shadow:0 0 0 4px rgba(55,180,138,.08)}
    .field textarea{min-height:120px;resize:vertical}
    footer{background:#eff7f1;border-top:1px solid var(--line);color:var(--text);margin-top:10px}
    footer a{color:#1a7d5c}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:16px;padding:26px 0}
    .fine{padding:12px 0 24px;color:var(--muted);font-size:13px;border-top:1px solid var(--line)}
    .float-box{position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px}
    .float-btn{width:48px;height:48px;border-radius:16px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center;font-weight:800;color:var(--accent)}
    .backtop{opacity:0;pointer-events:none;transform:translateY(10px);transition:.25s}
    .backtop.show{opacity:1;pointer-events:auto;transform:translateY(0)}
    .reveal{opacity:0;transform:translateY(18px);transition:.55s ease}
    .reveal.in{opacity:1;transform:translateY(0)}
    .mobile-nav{display:none}
    @media (max-width: 980px){
      .hero-grid,.grid-4,.grid-3,.grid-2,.form-wrap,.footer-grid,.media-grid{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-toggle{display:inline-flex}
      .mobile-nav{display:none;padding:0 0 16px}
      .mobile-nav.open{display:grid;gap:8px}
      .mobile-nav a{padding:12px 14px;background:#fff;border:1px solid var(--line);border-radius:14px}
      .hero{padding-top:28px}
      .hero-points{grid-template-columns:1fr}
    }