:root{
      --bg:#f5f8f4;
      --bg-2:#ecfdf5;
      --card:#ffffff;
      --text:#173024;
      --muted:#4b5f56;
      --line:#d8e7df;
      --green:#12b76a;
      --green-2:#22c55e;
      --green-3:#0f9f5f;
      --gold:#f5b301;
      --shadow:0 18px 45px rgba(16, 24, 40, .08);
      --radius:22px;
      --radius-sm:16px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:Inter, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(18,183,106,.12), transparent 22%),
        radial-gradient(circle at 85% 10%, rgba(34,197,94,.10), transparent 24%),
        linear-gradient(180deg, #ffffff 0%, var(--bg) 38%, #f7fbf8 100%);
      line-height:1.7;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .skip{position:absolute;left:-999px;top:auto}
    .skip:focus{left:16px;top:16px;z-index:50;background:#fff;padding:10px 14px;border-radius:10px;box-shadow:var(--shadow)}
    header{
      position:sticky;top:0;z-index:40;
      backdrop-filter:blur(16px);
      background:rgba(255,255,255,.82);
      border-bottom:1px solid rgba(216,231,223,.75);
    }
    .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 .logo{
      width:40px;height:40px;object-fit:contain;flex:none;
      border-radius:12px;background:#fff;border:1px solid var(--line);padding:4px;
      box-shadow:0 8px 18px rgba(18,183,106,.08);
    }
    .brand .name{display:flex;flex-direction:column;min-width:0}
    .brand strong{font-size:1.02rem;line-height:1.1}
    .brand span{font-size:.86rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .nav-links{display:flex;align-items:center;gap:16px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:.95rem;color:#29453a;padding:8px 10px;border-radius:999px;transition:.25s}
    .nav-links a:hover,.nav-links a:focus-visible{background:#eaf8f0;color:#0d6b41}
    .nav-cta{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;transition:.25s;cursor:pointer;white-space:nowrap;
    }
    .btn-primary{background:linear-gradient(135deg,var(--green) 0%, var(--green-2) 100%);color:#fff;box-shadow:0 12px 28px rgba(18,183,106,.28)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(18,183,106,.34)}
    .btn-ghost{border-color:var(--line);background:#fff;color:var(--text)}
    .btn-ghost:hover{border-color:#bfe6cf;background:#f7fffa}
    .menu-btn{display:none}
    main{display:block}
    section{padding:72px 0}
    .hero{padding:36px 0 52px}
    .hero-wrap{
      position:relative;
      overflow:hidden;
      border:1px solid rgba(216,231,223,.9);
      border-radius:28px;
      background:
        linear-gradient(135deg, rgba(18,183,106,.10), rgba(255,255,255,.86) 34%, rgba(34,197,94,.08)),
        linear-gradient(180deg, #ffffff, #f7fbf8);
      box-shadow:var(--shadow);
    }
    .hero-wrap:before,.hero-wrap:after{
      content:"";position:absolute;border-radius:50%;pointer-events:none
    }
    .hero-wrap:before{width:240px;height:240px;right:-70px;top:-70px;background:radial-gradient(circle, rgba(18,183,106,.20), transparent 68%)}
    .hero-wrap:after{width:320px;height:320px;left:-120px;bottom:-160px;background:radial-gradient(circle, rgba(34,197,94,.16), transparent 70%)}
    .hero-inner{
      position:relative;z-index:1;
      padding:34px;
      display:grid;grid-template-columns:1.2fr .8fr;gap:26px;align-items:center
    }
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:#e9fbf2;color:#0b7145;border:1px solid #c9f0db;padding:7px 12px;border-radius:999px;font-size:.88rem;font-weight:700}
    h1{margin:14px 0 14px;font-size:clamp(2rem,4vw,3.5rem);line-height:1.08;letter-spacing:-.02em}
    .lead{margin:0;color:var(--muted);font-size:1.05rem;max-width:62ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .hero-stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .stat{
      background:rgba(255,255,255,.88);border:1px solid var(--line);border-radius:20px;padding:18px;
      box-shadow:0 10px 24px rgba(16,24,40,.05)
    }
    .stat strong{display:block;font-size:1.6rem;line-height:1.05;color:#0a6b41}
    .stat span{display:block;color:var(--muted);margin-top:6px;font-size:.94rem}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:22px}
    .section-head h2{margin:0;font-size:clamp(1.45rem,2.5vw,2.2rem);line-height:1.15}
    .section-head p{margin:0;color:var(--muted);max-width:62ch}
    .grid{display:grid;gap:18px}
    .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(--card);border:1px solid var(--line);border-radius:var(--radius);
      box-shadow:0 12px 28px rgba(16,24,40,.05);padding:22px;transition:.28s
    }
    .card:hover{transform:translateY(-4px);box-shadow:0 18px 34px rgba(16,24,40,.08)}
    .icon{
      width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
      background:linear-gradient(135deg,#e8fbf1,#d8f7e5);color:#0f7b49;font-weight:900;margin-bottom:14px
    }
    .card h3{margin:0 0 8px;font-size:1.08rem}
    .card p{margin:0;color:var(--muted)}
    .pill-row{display:flex;flex-wrap:wrap;gap:10px}
    .pill{padding:9px 12px;border-radius:999px;background:#edfdf4;border:1px solid #cbeedd;color:#0b6d42;font-size:.92rem}
    .soft{background:linear-gradient(180deg,#fbfffc,#f2fbf5)}
    .table-wrap{overflow:auto;border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:15px 16px;border-bottom:1px solid #e6eee8;text-align:left;vertical-align:top}
    th{background:#f6fbf8;color:#214235;font-size:.95rem}
    tr:hover td{background:#fcfffd}
    .rating{
      display:flex;align-items:center;gap:10px;flex-wrap:wrap
    }
    .stars{color:var(--gold);letter-spacing:2px;font-size:1.1rem}
    .badge{
      display:inline-flex;align-items:center;gap:6px;padding:7px 10px;border-radius:999px;
      background:#eefaf4;border:1px solid #cdebdc;color:#0c7144;font-size:.88rem;font-weight:700
    }
    .timeline{position:relative;padding-left:20px}
    .timeline:before{content:"";position:absolute;left:7px;top:4px;bottom:4px;width:2px;background:linear-gradient(180deg,#c8ecd9,#a7e3c0)}
    .step{position:relative;padding:0 0 22px 20px}
    .step:before{content:"";position:absolute;left:-1px;top:6px;width:16px;height:16px;border-radius:50%;background:#11b56b;border:3px solid #e6fbef}
    .step h3{margin:0 0 6px}
    .step p{margin:0;color:var(--muted)}
    .list{margin:0;padding:0;list-style:none}
    .list li{padding:10px 0;border-bottom:1px dashed #e6eee8;color:#274136}
    .list li:last-child{border-bottom:0}
    .article-list{display:grid;gap:12px}
    .article{
      display:flex;justify-content:space-between;align-items:center;gap:16px;
      padding:15px 16px;border:1px solid var(--line);border-radius:18px;background:#fff
    }
    .article strong{display:block;margin-bottom:4px}
    .article span{color:var(--muted);font-size:.92rem}
    .form{
      display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px
    }
    .field{display:flex;flex-direction:column;gap:8px}
    .field.full{grid-column:1/-1}
    label{font-weight:700;color:#274136}
    input,select,textarea{
      width:100%;border:1px solid #cfe1d7;border-radius:14px;background:#fff;padding:13px 14px;
      font:inherit;color:var(--text);outline:none;transition:.2s
    }
    input:focus,select:focus,textarea:focus{border-color:#7cdcab;box-shadow:0 0 0 4px rgba(18,183,106,.12)}
    textarea{min-height:130px;resize:vertical}
    .faq{display:grid;gap:12px}
    details{
      border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:0 8px 18px rgba(16,24,40,.04);overflow:hidden
    }
    summary{
      cursor:pointer;list-style:none;padding:16px 18px;font-weight:700;color:#213a30;display:flex;justify-content:space-between;gap:12px
    }
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";color:#0c824e;font-size:1.2rem}
    details[open] summary{background:#f5fcf8}
    details[open] summary:after{content:"−"}
    details .answer{padding:0 18px 16px;color:var(--muted)}
    .quote{display:grid;gap:16px}
    .review{
      padding:20px;border-radius:20px;background:#fff;border:1px solid var(--line);
      box-shadow:0 10px 24px rgba(16,24,40,.05)
    }
    .review .meta{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:10px}
    .review strong{font-size:1rem}
    .review em{font-style:normal;color:#0a7c49;background:#edfdf4;border:1px solid #d0efd9;padding:5px 9px;border-radius:999px;font-size:.84rem}
    .review p{margin:0;color:var(--muted)}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud a,.tag-cloud span{
      padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#29453a;font-size:.92rem
    }
    .network{
      display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px
    }
    .network .node{padding:18px;border:1px solid var(--line);border-radius:20px;background:#fff}
    footer{
      padding:28px 0 34px;border-top:1px solid rgba(216,231,223,.9);
      background:#f7fbf8;color:#254035
    }
    footer a{color:#136d43}
    .footer-top{display:grid;grid-template-columns:1.2fr .8fr;gap:20px;align-items:start}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{padding:8px 10px;border-radius:999px;background:#fff;border:1px solid var(--line)}
    .copyright{margin-top:16px;color:#5c7067;font-size:.92rem}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:45;display:grid;gap:10px
    }
    .floating a,.floating button{
      width:52px;height:52px;border-radius:50%;border:0;display:grid;place-items:center;
      background:linear-gradient(135deg,var(--green),var(--green-2));color:#fff;box-shadow:0 14px 30px rgba(18,183,106,.28);cursor:pointer
    }
    .floating button{font-size:1.15rem}
    .modal{
      position:fixed;inset:0;background:rgba(15,23,42,.38);display:none;align-items:center;justify-content:center;padding:18px;z-index:60
    }
    .modal.active{display:flex}
    .modal-card{
      width:min(520px,100%);background:#fff;border-radius:24px;padding:20px;border:1px solid #dbe8e1;box-shadow:var(--shadow)
    }
    .modal-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}
    .close{background:#eef7f1;border:1px solid #d8e7df;color:#24513a;border-radius:12px;width:40px;height:40px;cursor:pointer}
    .kefu-box{
      display:grid;grid-template-columns:110px 1fr;gap:14px;align-items:center
    }
    .kefu-box img{border-radius:16px;border:1px solid var(--line);background:#fff}
    .scroll-x{overflow:auto}
    .compare-table{min-width:980px}
    .scroll-reveal{opacity:0;transform:translateY(16px);transition:.65s ease}
    .scroll-reveal.show{opacity:1;transform:none}
    .mobile-only{display:none}
    @media (max-width: 980px){
      .hero-inner,.grid-4,.grid-3,.grid-2,.footer-top,.network{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-btn{display:inline-flex}
      .mobile-only{display:block}
      .hero{padding-top:18px}
      .section-head{align-items:start;flex-direction:column}
      .form{grid-template-columns:1fr}
      .kefu-box{grid-template-columns:1fr}
    }
    .mobile-nav{
      display:none;border-top:1px solid var(--line);background:#fff
    }
    .mobile-nav.active{display:block}
    .mobile-nav .container{padding:10px 0 16px}
    .mobile-nav a{
      display:block;padding:12px 0;border-bottom:1px solid #edf2ee;color:#274136
    }
    .mobile-nav a:last-child{border-bottom:0}