:root{
      --bg:#f5fbf7;
      --bg-soft:#eef8f1;
      --card:#ffffff;
      --card-2:#f8fcf9;
      --line:#d9eadf;
      --text:#173024;
      --muted:#5e7268;
      --brand:#27b37e;
      --brand-2:#8be0bf;
      --brand-3:#0f8d63;
      --accent:#ffd86a;
      --shadow:0 18px 48px rgba(31, 73, 55, .10);
      --radius:22px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",Segoe UI,Roboto,Helvetica,Arial,sans-serif;
      background:
        radial-gradient(circle at top left, rgba(139,224,191,.28), transparent 28%),
        radial-gradient(circle at top right, rgba(255,216,106,.18), transparent 24%),
        linear-gradient(180deg, #f8fcf9 0%, #f4fbf7 100%);
      color:var(--text);
      line-height:1.68;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .site-header{
      position:sticky; top:0; z-index:50;
      backdrop-filter:saturate(180%) blur(14px);
      background:rgba(245,251,247,.82);
      border-bottom:1px solid rgba(217,234,223,.85);
    }
    .header-inner{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 .ai-page-logo{width:40px; height:40px; object-fit:contain; border-radius:12px; background:#fff; padding:4px; box-shadow:0 8px 20px rgba(39,179,126,.12)}
    .brand-text{min-width:0}
    .brand-text strong{display:block; font-size:1.02rem; letter-spacing:.4px}
    .brand-text span{display:block; color:var(--muted); font-size:.86rem}
    .nav-toggle{display:none; border:1px solid var(--line); background:#fff; color:var(--text); border-radius:14px; padding:10px 12px}
    .nav{display:flex; align-items:center; gap:12px}
    .nav-links{display:flex; flex-wrap:wrap; gap:6px}
    .nav-links a{
      padding:9px 12px; border-radius:999px; color:#214235; font-size:.92rem;
      border:1px solid transparent; transition:.25s ease;
    }
    .nav-links a:hover{background:#fff; border-color:var(--line); transform:translateY(-1px)}
    .nav-cta{display:flex; gap:10px; align-items:center}
    .btn{
      display:inline-flex; align-items:center; justify-content:center; gap:8px;
      border-radius:999px; padding:12px 18px; border:1px solid transparent;
      font-weight:700; transition:.25s ease; cursor:pointer;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-3)); color:#fff; box-shadow:0 14px 30px rgba(39,179,126,.22)}
    .btn-ghost{background:#fff; border-color:var(--line); color:var(--text)}
    .btn:hover{transform:translateY(-2px); box-shadow:var(--shadow)}
    .hero{
      position:relative; overflow:hidden;
      padding:48px 0 28px;
    }
    .hero-grid{display:grid; grid-template-columns:1.18fr .82fr; gap:22px; align-items:stretch}
    .hero-main,.hero-side,.panel,.card,.faq-item,.quote-card,.article-card,.info-table,.form-card{
      background:rgba(255,255,255,.82); border:1px solid rgba(217,234,223,.92);
      border-radius:var(--radius); box-shadow:var(--shadow);
    }
    .hero-main{padding:34px}
    .eyebrow{display:inline-flex; align-items:center; gap:8px; background:#e9fbf2; color:#157451; border:1px solid #c8eadb; padding:7px 12px; border-radius:999px; font-size:.88rem; font-weight:700}
    h1{margin:18px 0 14px; font-size:clamp(2rem, 4vw, 3.8rem); line-height:1.08; letter-spacing:-.03em}
    .lead{margin:0; color:var(--muted); font-size:1.03rem; max-width:62ch}
    .hero-actions{display:flex; flex-wrap:wrap; gap:12px; margin-top:24px}
    .hero-points{display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-top:22px}
    .point{padding:14px 14px 13px; background:linear-gradient(180deg,#fff,#f6fbf8); border:1px solid var(--line); border-radius:18px}
    .point strong{display:block; font-size:1.05rem}
    .point span{color:var(--muted); font-size:.9rem}
    .hero-side{padding:24px; display:grid; gap:16px; background:
      linear-gradient(180deg, rgba(255,255,255,.92), rgba(240,251,245,.92));
    }
    .mini-banner{padding:18px; border-radius:18px; background:linear-gradient(135deg, rgba(39,179,126,.12), rgba(139,224,191,.22)); border:1px solid #cce9dc}
    .mini-banner h2,.section-title h2{margin:0}
    .mini-banner h2{font-size:1.1rem}
    .mini-banner p{margin:8px 0 0; color:var(--muted)}
    .stat-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:12px}
    .stat{padding:16px; border-radius:18px; background:var(--card-2); border:1px solid var(--line)}
    .stat b{display:block; font-size:1.35rem}
    .stat small{color:var(--muted)}
    .badge-cloud{display:flex; flex-wrap:wrap; gap:8px}
    .tag{padding:8px 11px; border-radius:999px; background:#fff; border:1px solid var(--line); color:#214235; font-size:.88rem}
    section{padding:22px 0}
    .section-head{display:flex; justify-content:space-between; gap:18px; align-items:end; margin-bottom:16px}
    .section-title h2{font-size:1.7rem}
    .section-title p{margin:8px 0 0; color:var(--muted)}
    .section-link{color:var(--brand-3); font-weight:700}
    .grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .grid-2{display:grid; grid-template-columns:repeat(2,1fr); gap:16px}
    .card{padding:22px}
    .card h3{margin:0 0 10px; font-size:1.1rem}
    .card p,.card li{color:var(--muted)}
    .icon{
      width:44px; height:44px; border-radius:14px; display:grid; place-items:center;
      background:linear-gradient(135deg,#e7fbef,#dff5ea); color:#0f8d63; font-weight:800; margin-bottom:12px;
      border:1px solid #cce9dc;
    }
    .timeline{display:grid; gap:12px}
    .step{display:flex; gap:14px; align-items:flex-start; padding:16px 18px; border:1px solid var(--line); border-radius:18px; background:#fff}
    .step-num{flex:0 0 34px; height:34px; border-radius:12px; background:#ebfbf4; color:#0d8a61; display:grid; place-items:center; font-weight:800}
    .compare-wrap{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 14px; border-bottom:1px solid #e7f1eb; text-align:left; vertical-align:top}
    th{background:#f3fbf6; color:#214235}
    tr:hover td{background:#fafefb}
    .rating{display:flex; align-items:center; gap:8px; font-weight:800; color:#0f8d63}
    .stars{letter-spacing:2px; color:#f2b600}
    .two-col{display:grid; grid-template-columns:1fr .92fr; gap:16px}
    .list{margin:0; padding-left:18px}
    .article-list{display:grid; gap:12px}
    .article-card{padding:18px 20px; display:flex; justify-content:space-between; gap:16px; align-items:center}
    .article-card strong{display:block}
    .article-card span{color:var(--muted); font-size:.92rem}
    .quote-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .quote-card{padding:20px}
    .quote-card header{display:flex; justify-content:space-between; gap:12px; align-items:center; margin-bottom:10px}
    .avatar{width:42px; height:42px; border-radius:50%; background:linear-gradient(135deg,#dff6ea,#fff); border:1px solid var(--line); display:grid; place-items:center; color:#0f8d63; font-weight:800}
    .faq{display:grid; gap:12px}
    .faq-item{padding:0; overflow:hidden}
    .faq-q{
      width:100%; text-align:left; background:none; border:0; padding:18px 20px; color:var(--text);
      font-size:1rem; font-weight:700; display:flex; justify-content:space-between; align-items:center; cursor:pointer;
    }
    .faq-a{max-height:0; overflow:hidden; transition:max-height .28s ease; padding:0 20px}
    .faq-item.open .faq-a{padding-bottom:18px}
    .faq-item.open .chev{transform:rotate(180deg)}
    .chev{transition:transform .25s ease; color:var(--brand-3)}
    .form-card{padding:22px}
    form{display:grid; gap:14px}
    .form-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:12px}
    label{display:block; font-weight:700; margin-bottom:7px}
    input,select,textarea{
      width:100%; border:1px solid #d6e8de; border-radius:14px; background:#fff; color:var(--text);
      padding:12px 13px; font:inherit; outline:none; transition:.2s ease;
    }
    textarea{min-height:118px; resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#8be0bf; box-shadow:0 0 0 4px rgba(39,179,126,.10)}
    .note{color:var(--muted); font-size:.9rem}
    .side-panel{display:grid; gap:16px}
    .service-net{display:grid; gap:12px}
    .network-item{display:flex; justify-content:space-between; gap:12px; padding:14px 16px; border-radius:18px; border:1px solid var(--line); background:#fff}
    .footer{
      margin-top:18px; padding:24px 0 28px;
      background:linear-gradient(180deg,#eff8f2,#eaf4ee);
      border-top:1px solid #d9eadf;
      color:#234236;
    }
    .footer a{color:#184f3b}
    .footer-grid{display:grid; grid-template-columns:1.05fr .95fr .9fr; gap:16px}
    .footer small,.footer p,.footer li{color:#4e685d}
    .footer .mini-logo{width:44px; height:44px; object-fit:contain; border-radius:12px; background:#fff; padding:4px; border:1px solid #d8e8de}
    .footer-links{display:flex; flex-wrap:wrap; gap:10px}
    .home-link{font-weight:800; color:var(--brand-3)}
    .float-actions{
      position:fixed; right:16px; bottom:16px; z-index:60;
      display:grid; gap:10px;
    }
    .float-btn{
      width:48px; height:48px; border-radius:50%; display:grid; place-items:center;
      background:#fff; border:1px solid var(--line); box-shadow:var(--shadow); color:var(--brand-3); font-weight:900;
    }
    .float-service{
      position:fixed; left:16px; bottom:16px; z-index:60;
      width:min(320px, calc(100vw - 32px)); background:#fff; border:1px solid var(--line);
      border-radius:22px; box-shadow:var(--shadow); overflow:hidden;
    }
    .float-service .top{display:flex; align-items:center; justify-content:space-between; padding:14px 16px; background:#f5fbf7; border-bottom:1px solid var(--line)}
    .float-service .body{padding:14px 16px; display:grid; gap:10px}
    .float-service .body img{width:110px; border-radius:14px; border:1px solid var(--line)}
    .float-service .body a{color:var(--brand-3); font-weight:700}
    .scroll-animate{opacity:0; transform:translateY(16px); transition:opacity .6s ease, transform .6s ease}
    .scroll-animate.in-view{opacity:1; transform:none}
    @media (max-width: 1080px){
      .hero-grid,.two-col,.grid-3,.quote-grid,.footer-grid{grid-template-columns:1fr}
      .nav-toggle{display:inline-flex}
      .nav{position:absolute; top:72px; left:16px; right:16px; padding:14px; flex-direction:column; align-items:stretch; background:#fff; border:1px solid var(--line); border-radius:20px; box-shadow:var(--shadow); display:none}
      .nav.open{display:flex}
      .nav-links{flex-direction:column}
      .nav-cta{flex-direction:column}
      .hero-points,.grid-2,.form-grid,.stat-grid{grid-template-columns:1fr 1fr}
      .hero-main{padding:24px}
    }
    @media (max-width: 720px){
      .container{width:min(var(--container), calc(100% - 22px))}
      .header-inner{padding:12px 0}
      .hero{padding-top:28px}
      .hero-points,.grid-2,.form-grid,.stat-grid{grid-template-columns:1fr}
      .section-head{align-items:start; flex-direction:column}
      .article-card{flex-direction:column; align-items:flex-start}
      .float-service{display:none}
    }