:root{
      --bg:#f5f8f2;
      --card:#ffffff;
      --card2:#f7fbf4;
      --line:#dbe6d3;
      --text:#17301f;
      --muted:#5f6f64;
      --brand:#15b15a;
      --brand2:#7bea2f;
      --accent:#0f8e46;
      --shadow:0 14px 40px rgba(18, 73, 38, .10);
      --radius:18px;
      --radius2:24px;
      --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;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(123,234,47,.16), transparent 28%),
        radial-gradient(circle at 85% 10%, rgba(21,177,90,.12), transparent 24%),
        linear-gradient(180deg, #f7fbf5 0%, #f3f8ef 100%);
    }
    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: blur(14px);
      background:rgba(247,251,245,.86);
      border-bottom:1px solid rgba(219,230,211,.85);
    }
    .nav{
      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:44px;height:44px;object-fit:contain;border-radius:12px;background:#fff;border:1px solid var(--line);padding:6px;box-shadow:0 8px 20px rgba(0,0,0,.06)}
    .brand-title{display:flex;flex-direction:column;gap:2px;min-width:0}
    .brand-title strong{font-size:16px;line-height:1.1}
    .brand-title 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:.22s ease}
    .nav-links a:hover{background:#e9f7e6;color:#0f6f37}
    .nav-cta{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:12px 16px;border-radius:999px;border:1px solid transparent;
      font-weight:700;font-size:14px;transition:.25s ease;cursor:pointer;
      box-shadow:0 10px 24px rgba(21,177,90,.12);
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#083014}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(21,177,90,.2)}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-ghost:hover{border-color:#a8d6b2;transform:translateY(-1px)}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px;cursor:pointer}
    .hero{
      padding:34px 0 24px;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.18fr .82fr;gap:22px;align-items:stretch;
    }
    .hero-card{
      background:
        linear-gradient(180deg, rgba(255,255,255,.95), rgba(248,252,246,.93)),
        radial-gradient(circle at 100% 0, rgba(123,234,47,.14), transparent 30%);
      border:1px solid rgba(219,230,211,.9);
      border-radius:var(--radius2);
      box-shadow:var(--shadow);
      padding:32px;
      position:relative;
      overflow:hidden;
    }
    .hero-card::after{
      content:"";
      position:absolute;inset:auto -40px -50px auto;width:220px;height:220px;border-radius:50%;
      background:radial-gradient(circle, rgba(123,234,47,.20), transparent 68%);
      pointer-events:none;
    }
    .kicker{display:inline-flex;align-items:center;gap:8px;background:#e8f8e7;color:#0f6f37;border:1px solid #caebcc;padding:8px 12px;border-radius:999px;font-size:13px;font-weight:700}
    h1{margin:18px 0 14px;font-size:clamp(30px,4vw,54px);line-height:1.08;letter-spacing:-.03em}
    .lead{font-size:16px;line-height:1.8;color:var(--muted);max-width:62ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .hero-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:26px}
    .meta-item{
      background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px 14px 12px;
    }
    .meta-item strong{display:block;font-size:18px;margin-bottom:6px;color:#10351d}
    .meta-item span{font-size:13px;color:var(--muted);line-height:1.5}
    .hero-aside{
      display:grid;gap:14px;
    }
    .panel{
      background:linear-gradient(180deg,#ffffff 0%, #f8fbf5 100%);
      border:1px solid var(--line);
      border-radius:var(--radius2);
      box-shadow:var(--shadow);
      padding:22px;
    }
    .panel h2,.section h2{margin:0 0 12px;font-size:24px;line-height:1.2}
    .panel p,.section p{margin:0;color:var(--muted);line-height:1.75}
    .mini-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:16px}
    .mini{
      background:#f6faf3;border:1px solid var(--line);border-radius:16px;padding:14px;
    }
    .mini strong{display:block;font-size:15px;margin-bottom:4px}
    .mini span{display:block;font-size:12px;color:var(--muted);line-height:1.55}
    .section{padding:16px 0 10px}
    .section-block{
      background:rgba(255,255,255,.88);
      border:1px solid rgba(219,230,211,.88);
      border-radius:var(--radius2);
      box-shadow:var(--shadow);
      padding:26px;
      margin-top:16px;
    }
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:14px;margin-bottom:18px;flex-wrap:wrap}
    .section-head h2{margin:0;font-size:28px}
    .section-head .sub{max-width:64ch;color:var(--muted);line-height:1.75}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .card{
      background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:0 10px 26px rgba(19,74,38,.06);transition:.24s ease;
    }
    .card:hover{transform:translateY(-4px);box-shadow:0 16px 34px rgba(19,74,38,.10)}
    .card h3{margin:0 0 8px;font-size:18px}
    .card p{margin:0;color:var(--muted);line-height:1.72;font-size:14px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:10px 12px;border-radius:999px;background:#eff8ec;border:1px solid #d0ebd2;color:#0f6f37;font-size:13px}
    .two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .process{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
    .step{
      position:relative;padding:18px;background:#fff;border:1px solid var(--line);border-radius:18px;min-height:144px;
    }
    .step .n{display:inline-flex;width:34px;height:34px;border-radius:12px;align-items:center;justify-content:center;background:#e7f8e5;color:#0f6f37;font-weight:800;margin-bottom:10px}
    .step h3{margin:0 0 8px;font-size:16px}
    .step p{margin:0;color:var(--muted);font-size:14px;line-height:1.65}
    .table-wrap{overflow:auto;border:1px solid var(--line);border-radius:18px;background:#fff}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:14px 14px;border-bottom:1px solid #e6efe0;text-align:left;font-size:14px;vertical-align:top}
    th{background:#f4fbf1;color:#0f6f37}
    tr:last-child td{border-bottom:none}
    .score{font-weight:800;color:#0f6f37}
    .highlight{
      background:linear-gradient(135deg, rgba(21,177,90,.10), rgba(123,234,47,.12));
      border:1px solid #cfeccf;
    }
    .faq-item{border:1px solid var(--line);border-radius:16px;background:#fff;overflow:hidden}
    .faq-q{
      width:100%;padding:16px 18px;background:none;border:none;text-align:left;color:var(--text);font-size:15px;font-weight:700;display:flex;justify-content:space-between;gap:16px;cursor:pointer
    }
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease, padding .28s ease; padding:0 18px}
    .faq-item.open .faq-a{padding:0 18px 16px;max-height:200px}
    .faq-a p{margin:0;color:var(--muted);line-height:1.75}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .review .role{font-size:12px;color:#0f6f37;font-weight:700;margin-bottom:10px}
    .review .name{font-size:16px;font-weight:800;margin-bottom:8px}
    .review p{font-size:14px;line-height:1.75;margin:0;color:var(--muted)}
    .article-list{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .article{
      padding:18px;border-radius:18px;border:1px solid var(--line);background:#fff
    }
    .article .date{font-size:12px;color:#0f6f37;font-weight:700;margin-bottom:10px}
    .article h3{margin:0 0 8px;font-size:17px}
    .article p{margin:0;color:var(--muted);line-height:1.72;font-size:14px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:flex;flex-direction:column;gap:8px}
    .field label{font-size:14px;font-weight:700}
    .field input,.field select,.field textarea{
      width:100%;padding:13px 14px;border-radius:14px;border:1px solid #cfdccd;background:#fff;color:var(--text);font:inherit;outline:none;
    }
    .field textarea{min-height:120px;resize:vertical}
    .field input:focus,.field select:focus,.field textarea:focus{border-color:#8fdb9d;box-shadow:0 0 0 4px rgba(21,177,90,.10)}
    .footer{
      margin-top:18px;padding:22px 0 30px;border-top:1px solid rgba(219,230,211,.9);background:rgba(247,251,245,.9)
    }
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:18px}
    .footer a{color:#0d6f37}
    .muted{color:var(--muted)}
    .service-net{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .floating{
      position:fixed;right:18px;bottom:18px;z-index:60;display:flex;flex-direction:column;gap:10px
    }
    .float-btn{
      width:48px;height:48px;border-radius:16px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center;color:#0f6f37;font-weight:900
    }
    .kefu{
      position:fixed;left:18px;bottom:18px;z-index:60;width:56px;height:56px;border-radius:18px;background:linear-gradient(135deg,var(--brand),var(--brand2));display:flex;align-items:center;justify-content:center;color:#083014;font-weight:900;box-shadow:0 14px 34px rgba(21,177,90,.22)
    }
    .reveal{opacity:0;transform:translateY(18px);transition:.7s ease}
    .reveal.show{opacity:1;transform:none}
    .badge{display:inline-flex;align-items:center;gap:6px;padding:7px 10px;border-radius:999px;background:#edf9ea;color:#0f6f37;font-size:12px;font-weight:700}
    .mobile-only{display:none}
    .image-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .image-row .ai-page-image{border-radius:18px;border:1px solid var(--line);box-shadow:var(--shadow)}
    .sidebar-note{display:grid;gap:12px}
    @media (max-width: 1024px){
      .hero-grid,.grid-4,.reviews,.article-list,.service-net,.footer-grid,.two-col,.process{grid-template-columns:1fr 1fr}
      .hero-meta{grid-template-columns:1fr}
      .form-grid{grid-template-columns:1fr}
    }
    @media (max-width: 760px){
      .nav-links,.nav-cta{display:none}
      .menu-btn{display:inline-flex}
      .mobile-only{display:block}
      .hero-grid,.grid-4,.reviews,.article-list,.service-net,.footer-grid,.two-col,.process,.image-row,.mini-grid{grid-template-columns:1fr}
      .hero-card,.section-block{padding:20px}
      h1{font-size:32px}
      .section-head h2,.panel h2{font-size:22px}
      .nav.open .nav-links,.nav.open .nav-cta{
        display:flex;flex-direction:column;align-items:stretch;width:100%;
      }
      .nav.open{flex-wrap:wrap}
      .nav.open .nav-links{order:3;padding-top:10px}
      .nav.open .nav-cta{order:4}
      .nav-links a{background:#fff;border:1px solid var(--line)}
      table{min-width:760px}
      .floating{right:12px;bottom:12px}
      .kefu{left:12px;bottom:12px}
    }