:root{
      --bg:#f6fbf8;
      --bg2:#eef8f2;
      --card:#ffffff;
      --text:#163026;
      --muted:#5f756c;
      --line:#d8e8df;
      --brand:#31b17a;
      --brand2:#19a1a8;
      --brand3:#8be3b7;
      --shadow:0 18px 40px rgba(28,80,60,.10);
      --radius:22px;
      --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",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(49,177,122,.12), transparent 32%),
        radial-gradient(circle at top right, rgba(25,161,168,.10), transparent 28%),
        linear-gradient(180deg, #fbfefc 0%, var(--bg) 44%, #f9fcfa 100%);
      line-height:1.7;
    }
    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;
      backdrop-filter:saturate(150%) blur(14px);
      background:rgba(251,254,252,.82);
      border-bottom:1px solid rgba(216,232,223,.8);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:18px;
      min-height:78px;padding:10px 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 strong{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;color:var(--muted);font-size:12px}
    .nav-links{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px;align-items:center}
    .nav-links a,.nav-links button{
      border:1px solid transparent;background:transparent;color:var(--text);
      padding:9px 12px;border-radius:999px;font-size:14px;cursor:pointer;
      transition:.22s ease;
    }
    .nav-links a:hover,.nav-links button:hover{background:#eaf7f0;border-color:var(--line);transform:translateY(-1px)}
    .home-link{border-color:rgba(49,177,122,.25)!important;background:linear-gradient(135deg,#eafaf1,#f6fffa)!important;color:#13704d!important}
    .menu-btn{display:none}
    main{overflow:hidden}
    .hero{
      padding:42px 0 24px;
      position:relative;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch;
    }
    .hero-copy,.hero-panel,.card,.section-box,.faq-item,.review,.article,.form-card,.compare-card{
      background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);
    }
    .hero-copy{padding:34px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:#eaf8f1;color:#146445;font-size:13px;font-weight:700}
    h1{margin:16px 0 14px;font-size:clamp(32px,4vw,56px);line-height:1.08;letter-spacing:-.03em}
    .lead{margin:0;color:var(--muted);font-size:17px;max-width:58ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0 18px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:13px 18px;border-radius:14px;border:1px solid transparent;font-weight:700;
      transition:.22s ease;cursor:pointer;white-space:nowrap
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),#2bd0a0);color:#fff;box-shadow:0 14px 24px rgba(49,177,122,.22)}
    .btn-secondary{background:#f3fbf7;color:#1a5f47;border-color:var(--line)}
    .btn:hover{transform:translateY(-2px);filter:saturate(1.02)}
    .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
    .tag{padding:8px 11px;border-radius:999px;background:#f4fbf7;border:1px solid #dcebe3;color:#2b5f4a;font-size:13px}
    .hero-panel{padding:22px;background:
      linear-gradient(180deg, rgba(235,250,243,.85), rgba(255,255,255,.95));
      position:relative;overflow:hidden
    }
    .hero-panel::before,.hero-panel::after{
      content:"";position:absolute;border-radius:999px;background:linear-gradient(135deg, rgba(49,177,122,.16), rgba(25,161,168,.10));
      filter:blur(1px)
    }
    .hero-panel::before{width:210px;height:210px;right:-60px;top:-50px}
    .hero-panel::after{width:120px;height:120px;left:-40px;bottom:12%}
    .panel-inner{position:relative;z-index:1;display:grid;gap:14px}
    .metric-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
    .metric{padding:16px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .metric strong{display:block;font-size:22px;margin-bottom:4px}
    .metric span{color:var(--muted);font-size:13px}
    .mini-list{display:grid;gap:10px}
    .mini-item{display:flex;gap:10px;align-items:flex-start;padding:12px 14px;border-radius:16px;background:#fff;border:1px dashed #dbe9e1}
    .dot{width:10px;height:10px;border-radius:50%;margin-top:7px;background:linear-gradient(135deg,var(--brand),var(--brand2))}
    section{padding:18px 0}
    .section-box{padding:28px}
    .section-head{display:flex;justify-content:space-between;gap:18px;align-items:end;margin-bottom:18px}
    .section-head h2{margin:0;font-size:28px;line-height:1.15}
    .section-head p{margin:0;color:var(--muted);max-width:68ch}
    .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:18px}
    .card h3{margin:0 0 8px;font-size:18px}
    .card p{margin:0;color:var(--muted)}
    .icon{
      width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
      background:linear-gradient(135deg,#e9fbf1,#f4fffb);border:1px solid #d9ebe2;color:#16704c;font-weight:900;margin-bottom:14px
    }
    .workflow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .step{padding:18px;border-radius:20px;background:linear-gradient(180deg,#fff,#f7fcf9);border:1px solid var(--line);position:relative}
    .step b{display:inline-flex;width:30px;height:30px;border-radius:50%;align-items:center;justify-content:center;background:#e9fbf1;color:#156648;margin-bottom:10px}
    .step h3{margin:0 0 8px;font-size:17px}
    .step p{margin:0;color:var(--muted)}
    .table-wrap{overflow:auto;border-radius:20px;border:1px solid var(--line)}
    table{width:100%;border-collapse:collapse;background:#fff;min-width:820px}
    th,td{padding:14px 16px;border-bottom:1px solid #e7f0ea;text-align:left;vertical-align:top}
    th{background:#f2fbf6;color:#184d3a}
    tr:hover td{background:#fcfffd}
    .rating{
      display:grid;grid-template-columns:1.05fr .95fr;gap:16px
    }
    .rating-card{padding:22px;border-radius:22px;background:linear-gradient(180deg,#f5fcf8,#fff);border:1px solid var(--line)}
    .stars{font-size:26px;color:#f2b01e;letter-spacing:2px}
    .review-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .review .meta{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:10px}
    .badge{display:inline-flex;padding:6px 10px;border-radius:999px;background:#ecf9f2;color:#17684b;font-size:12px;font-weight:700}
    .faq{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{
      width:100%;padding:18px 18px;background:#fff;border:none;color:var(--text);
      display:flex;justify-content:space-between;gap:14px;align-items:center;font:inherit;cursor:pointer;text-align:left
    }
    .faq-q strong{font-size:16px}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease; color:var(--muted);padding:0 18px}
    .faq-item.open .faq-a{padding:0 18px 18px;max-height:180px}
    .chev{transition:.24s ease}
    .faq-item.open .chev{transform:rotate(180deg)}
    .articles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .article h3{margin:0 0 10px;font-size:17px}
    .article .time{color:#779082;font-size:13px;margin-bottom:8px}
    .cloud{display:flex;flex-wrap:wrap;gap:10px}
    .cloud a,.cloud span{padding:9px 12px;border-radius:999px;background:#f4fbf7;border:1px solid #dcebe3;color:#285f49;font-size:13px}
    .two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .form-card form{display:grid;gap:12px}
    .field{display:grid;gap:7px}
    label{font-weight:700;font-size:14px}
    input,select,textarea{
      width:100%;padding:13px 14px;border-radius:14px;border:1px solid #cfe2d8;background:#fff;color:var(--text);
      font:inherit;outline:none;transition:.2s ease
    }
    input:focus,select:focus,textarea:focus{border-color:#63c89b;box-shadow:0 0 0 4px rgba(49,177,122,.10)}
    textarea{min-height:118px;resize:vertical}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px
    }
    .float-btn{
      display:flex;align-items:center;justify-content:center;gap:8px;
      width:52px;height:52px;border-radius:16px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)
    }
    .float-btn.primary{background:linear-gradient(135deg,var(--brand),#2bc5a1);color:#fff}
    footer{
      margin-top:10px;padding:28px 0 24px;background:#eff8f3;border-top:1px solid #d7e9df;color:#214437
    }
    footer a{color:#195e45}
    .footer-grid{display:grid;grid-template-columns:1.2fr .9fr .9fr;gap:18px;align-items:start}
    .footer-note{color:#4f6b60;font-size:14px;margin:10px 0 0}
    .qr{width:132px;border-radius:18px;border:1px solid #d9ebe2;overflow:hidden;background:#fff;padding:8px}
    .reveal{opacity:0;transform:translateY(14px);transition:.5s ease}
    .reveal.show{opacity:1;transform:none}
    @media (max-width: 1024px){
      .hero-grid,.rating,.two-col,.footer-grid,.grid-4,.workflow{grid-template-columns:1fr 1fr}
      .grid-3,.review-grid,.articles{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 768px){
      .nav{min-height:66px}
      .menu-btn{display:inline-flex}
      .nav-links{
        display:none;position:absolute;left:16px;right:16px;top:78px;background:#fff;border:1px solid var(--line);
        border-radius:18px;padding:10px;box-shadow:var(--shadow)
      }
      .nav-links.open{display:flex;flex-direction:column;align-items:stretch}
      .nav-links a,.nav-links button{justify-content:flex-start}
      .hero{padding-top:22px}
      .hero-grid,.grid-3,.grid-4,.workflow,.review-grid,.articles,.two-col,.footer-grid,.rating{grid-template-columns:1fr}
      .hero-copy,.section-box{padding:22px}
      .section-head{flex-direction:column;align-items:flex-start}
      .metric-grid{grid-template-columns:1fr 1fr}
      .floating{right:12px;bottom:12px}
    }