:root{
      --bg:#f4fbf6;
      --panel:#ffffff;
      --panel-2:#edf9f0;
      --text:#173126;
      --muted:#5f7569;
      --line:#d7eadc;
      --brand:#31b56a;
      --brand-2:#1f8f56;
      --brand-3:#c8f2d7;
      --shadow:0 18px 40px rgba(35,87,54,.10);
      --radius:20px;
      --radius-sm:14px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:Inter,system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
      background:
        radial-gradient(circle at top left, rgba(49,181,106,.10), transparent 26%),
        radial-gradient(circle at top right, rgba(31,143,86,.08), transparent 22%),
        linear-gradient(180deg, #fbfffc 0%, var(--bg) 42%, #f7fcf8 100%);
      color:var(--text);
      line-height:1.65;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{max-width:var(--container);margin:0 auto;padding:0 20px}
    .site-header{
      position:sticky;top:0;z-index:50;
      backdrop-filter:blur(14px);
      background:rgba(245,251,246,.88);
      border-bottom:1px solid rgba(215,234,220,.8);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:18px;
      min-height:72px;
    }
    .brand{display:flex;align-items:center;gap:12px;font-weight:800}
    .brand img{width:40px;height:40px;object-fit:contain}
    .brand .name{font-size:18px;letter-spacing:.5px}
    .menu{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
    .menu a{font-size:14px;color:var(--muted);padding:8px 0}
    .menu a:hover,.menu a.active{color:var(--brand-2)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .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;font-size:14px;
      transition:.25s ease;cursor:pointer;white-space:nowrap
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 12px 28px rgba(49,181,106,.24)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(49,181,106,.30)}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-ghost:hover{border-color:#bfe6ca;transform:translateY(-2px)}
    .hamburger{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px}
    .hamburger span{display:block;width:18px;height:2px;background:var(--text);margin:3px 0;border-radius:2px}
    main{overflow:hidden}
    .hero{
      padding:34px 0 18px;
    }
    .hero-shell{
      background:
        linear-gradient(135deg, rgba(49,181,106,.12), rgba(255,255,255,.82)),
        linear-gradient(180deg, #fff, #f5fbf6);
      border:1px solid rgba(215,234,220,.9);
      border-radius:28px;
      box-shadow:var(--shadow);
      padding:30px;
      position:relative;
    }
    .hero-shell:before,.hero-shell:after{
      content:"";position:absolute;border-radius:999px;background:rgba(49,181,106,.10);filter:blur(2px)
    }
    .hero-shell:before{width:120px;height:120px;right:18px;top:18px}
    .hero-shell:after{width:180px;height:180px;right:120px;bottom:-60px;opacity:.35}
    .hero-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:24px;align-items:center;position:relative;z-index:1}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:#eefaf1;border:1px solid #d7eadc;color:var(--brand-2);padding:8px 14px;border-radius:999px;font-size:13px;font-weight:700}
    h1{margin:16px 0 12px;font-size:clamp(30px,5vw,52px);line-height:1.08;letter-spacing:-.02em}
    .lead{font-size:17px;color:var(--muted);max-width:56ch;margin:0 0 18px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0 18px}
    .hero-points{display:flex;flex-wrap:wrap;gap:10px}
    .chip{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 12px;font-size:13px;color:var(--text);box-shadow:0 6px 14px rgba(30,78,50,.05)}
    .hero-card{
      background:rgba(255,255,255,.88);
      border:1px solid rgba(215,234,220,.9);
      border-radius:24px;padding:20px;
      box-shadow:0 12px 28px rgba(35,87,54,.08);
    }
    .metric-grid,.service-grid,.case-grid,.review-grid,.article-grid,.step-grid,.compare-grid,.network-grid,.about-grid,.networking-grid{
      display:grid;gap:16px
    }
    .metric-grid{grid-template-columns:repeat(4,1fr);margin-top:22px}
    .metric{
      background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:0 10px 20px rgba(35,87,54,.05)
    }
    .metric strong{display:block;font-size:28px;line-height:1.1;color:var(--brand-2)}
    .metric span{font-size:13px;color:var(--muted)}
    section{padding:18px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin:8px 0 18px}
    .section-head h2{margin:0;font-size:28px}
    .section-head p{margin:0;color:var(--muted);max-width:58ch}
    .about-grid{grid-template-columns:1fr 1fr}
    .card{
      background:var(--panel);
      border:1px solid var(--line);
      border-radius:var(--radius);
      padding:22px;
      box-shadow:0 10px 24px rgba(35,87,54,.06);
      transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    }
    .card:hover{transform:translateY(-4px);box-shadow:0 18px 34px rgba(35,87,54,.10);border-color:#bfe6ca}
    .tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
    .service-grid{grid-template-columns:repeat(3,1fr)}
    .service-card h3,.card h3{margin:0 0 8px;font-size:18px}
    .service-card p,.card p{margin:0;color:var(--muted)}
    .list{padding:0;margin:14px 0 0;list-style:none;display:grid;gap:10px}
    .list li{display:flex;gap:10px;align-items:flex-start;color:var(--text)}
    .dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-2));margin-top:8px;flex:0 0 auto}
    .two-col{display:grid;grid-template-columns:1.05fr .95fr;gap:16px}
    .timeline{display:grid;gap:14px}
    .timeline-item{display:grid;grid-template-columns:88px 1fr;gap:14px;align-items:start;padding:16px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .timeline-item b{color:var(--brand-2)}
    .compare-wrap{overflow:auto;border:1px solid var(--line);border-radius:20px;background:#fff}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:16px;border-bottom:1px solid #e6f1e9;text-align:left;vertical-align:top}
    th{background:#f1fbf4;color:var(--text);font-size:14px}
    tr:last-child td{border-bottom:none}
    .score-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#edf9f0;color:var(--brand-2);font-weight:800}
    .faq details{
      background:#fff;border:1px solid var(--line);border-radius:16px;padding:0 18px;overflow:hidden
    }
    .faq details + details{margin-top:12px}
    .faq summary{cursor:pointer;list-style:none;padding:16px 0;font-weight:700}
    .faq summary::-webkit-details-marker{display:none}
    .faq .answer{padding:0 0 16px;color:var(--muted)}
    .review-grid{grid-template-columns:repeat(3,1fr)}
    .review-card .role{color:var(--brand-2);font-weight:700;font-size:13px;margin-bottom:10px}
    .stars{color:#f0b400;letter-spacing:2px}
    .article-grid{grid-template-columns:repeat(3,1fr)}
    .article-card time{display:block;font-size:13px;color:var(--muted);margin-bottom:10px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .form-card form{display:grid;gap:14px}
    label{display:grid;gap:8px;font-weight:700;font-size:14px}
    input,select,textarea{
      width:100%;border:1px solid var(--line);border-radius:14px;padding:13px 14px;
      background:#fff;color:var(--text);font:inherit;outline:none
    }
    input:focus,select:focus,textarea:focus{border-color:#91d9ad;box-shadow:0 0 0 4px rgba(49,181,106,.12)}
    textarea{min-height:120px;resize:vertical}
    .contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:16px}
    .qrcode{display:grid;grid-template-columns:140px 1fr;gap:16px;align-items:center}
    .qrcode img{width:140px;height:140px;object-fit:cover;border-radius:18px;border:1px solid var(--line);background:#fff}
    .footer{
      margin-top:18px;padding:24px 0 28px;border-top:1px solid var(--line);
      background:#eef8f0;color:#274033
    }
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px;align-items:start}
    .footer a{color:#1f8f56}
    .muted{color:var(--muted)}
    .sticky-contact{
      position:fixed;right:18px;bottom:18px;z-index:60;display:grid;gap:10px
    }
    .sticky-contact a,.sticky-contact button{
      border:none;cursor:pointer;
      width:52px;height:52px;border-radius:16px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
      color:#fff;box-shadow:0 14px 28px rgba(31,143,86,.25)
    }
    .top-btn{background:#fff;color:var(--text)!important;border:1px solid var(--line)!important}
    .fade-up{opacity:0;transform:translateY(18px);transition:opacity .6s ease, transform .6s ease}
    .fade-up.in{opacity:1;transform:none}
    .inline-image-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .inline-image-row img{width:100%;border-radius:18px;border:1px solid var(--line);box-shadow:0 10px 22px rgba(35,87,54,.08)}
    .tabs-note{padding:14px 16px;border-radius:16px;background:#f1fbf4;border:1px solid #d7eadc;color:var(--muted)}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span{padding:9px 12px;background:#fff;border:1px solid var(--line);border-radius:999px;font-size:13px}
    .price-box{display:grid;gap:12px}
    .price-item{display:flex;justify-content:space-between;gap:12px;padding:14px 16px;border-radius:16px;background:#fff;border:1px solid var(--line)}
    .mobile-toggle{display:none}
    @media (max-width: 1024px){
      .hero-grid,.about-grid,.service-grid,.two-col,.contact-grid,.footer-grid,.review-grid,.article-grid,.metric-grid,.inline-image-row{grid-template-columns:1fr 1fr}
      .metric-grid{grid-template-columns:repeat(2,1fr)}
      .service-grid,.review-grid,.article-grid,.footer-grid,.about-grid,.contact-grid,.two-col{grid-template-columns:1fr}
    }
    @media (max-width: 820px){
      .menu{display:none;position:absolute;left:20px;right:20px;top:76px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:var(--shadow)}
      .menu.open{display:grid}
      .menu a{padding:10px 6px;border-bottom:1px dashed #e3f0e7}
      .menu a:last-child{border-bottom:none}
      .hamburger,.mobile-toggle{display:inline-grid}
      .nav-actions .btn-ghost{display:none}
      .hero-shell{padding:20px}
      .hero-grid{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:flex-start}
      .form-grid{grid-template-columns:1fr}
      .timeline-item{grid-template-columns:1fr}
      .qrcode{grid-template-columns:1fr}
      .inline-image-row{grid-template-columns:1fr}
    }