:root{
      --bg:#f5fbf8;
      --panel:#ffffff;
      --panel-2:#f0faf4;
      --line:#d9ebe1;
      --text:#173126;
      --muted:#5d6f66;
      --accent:#21a57a;
      --accent-2:#68d6b0;
      --warm:#f4fff9;
      --shadow:0 14px 40px rgba(20, 67, 50, .08);
      --radius:20px;
      --max:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:linear-gradient(180deg,#f6fbf8 0%,#ffffff 35%,#f4fbf7 100%);color:var(--text);line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(100% - 32px,var(--max));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(246,251,248,.82);backdrop-filter:blur(14px);border-bottom:1px solid rgba(217,235,225,.75)}
    .nav-wrap{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 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:1rem;line-height:1.2}
    .brand span{display:block;font-size:.86rem;color:var(--muted)}
    .nav-toggle{display:none;border:1px solid var(--line);background:#fff;color:var(--text);border-radius:12px;padding:10px 12px}
    .nav{display:flex;align-items:center;gap:16px;flex-wrap:wrap;justify-content:flex-end}
    .nav a{font-size:.95rem;color:var(--muted);padding:8px 10px;border-radius:999px;transition:.25s}
    .nav a:hover,.nav a.active{color:var(--text);background:#eaf7f0}
    .hero{padding:42px 0 24px}
    .hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:stretch}
    .hero-copy{position:relative;overflow:hidden;padding:34px;background:linear-gradient(135deg,#ffffff 0%,#f1fbf5 100%);border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow)}
    .hero-copy:before,.hero-copy:after{content:"";position:absolute;border-radius:999px;background:radial-gradient(circle, rgba(33,165,122,.18), rgba(33,165,122,0) 65%);pointer-events:none}
    .hero-copy:before{width:240px;height:240px;right:-70px;top:-70px}
    .hero-copy:after{width:180px;height:180px;left:-60px;bottom:-40px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:#e8fbf2;color:#15714f;border:1px solid #cfeedd;border-radius:999px;padding:7px 12px;font-size:.86rem;font-weight:700}
    h1{margin:16px 0 12px;font-size:clamp(2rem,4vw,3.7rem);line-height:1.15;letter-spacing:-.03em}
    .lead{margin:0 0 20px;color:var(--muted);font-size:1.02rem;max-width:58ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:14px;padding:13px 18px;font-weight:700;border:1px solid transparent;transition:.25s ease;cursor:pointer}
    .btn-primary{background:linear-gradient(135deg,var(--accent),#19b27d);color:#fff;box-shadow:0 12px 22px rgba(33,165,122,.22)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(33,165,122,.28)}
    .btn-secondary{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-secondary:hover{border-color:#b8dfca;transform:translateY(-2px)}
    .hero-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}
    .meta-card{padding:14px 16px;background:rgba(255,255,255,.82);border:1px solid var(--line);border-radius:18px}
    .meta-card b{display:block;font-size:1.05rem;margin-bottom:4px}
    .meta-card span{color:var(--muted);font-size:.9rem}
    .hero-side{display:grid;gap:14px}
    .side-card{padding:22px;background:var(--panel);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow)}
    .side-card h2{margin:0 0 10px;font-size:1.2rem}
    .mini-list{display:grid;gap:10px;margin:0;padding:0;list-style:none}
    .mini-list li{display:flex;gap:10px;align-items:flex-start;color:var(--text)}
    .mini-list i{flex:0 0 20px;width:20px;height:20px;border-radius:50%;display:inline-grid;place-items:center;background:#e7faf1;color:#167152;font-style:normal;font-size:.82rem;margin-top:2px}
    .section{padding:18px 0 0}
    .section-card{background:rgba(255,255,255,.94);border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow);padding:26px}
    .section-head{display:flex;justify-content:space-between;gap:16px;align-items:end;margin-bottom:18px}
    .section-head h2{margin:0;font-size:1.7rem}
    .section-head p{margin:0;color:var(--muted);max-width:62ch}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .stat{padding:20px;border-radius:20px;background:linear-gradient(180deg,#f7fffb,#ffffff);border:1px solid var(--line)}
    .stat b{display:block;font-size:1.55rem;margin-bottom:6px;color:#0f5f41}
    .stat span{color:var(--muted);font-size:.92rem}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .card{padding:20px;border-radius:22px;background:var(--panel);border:1px solid var(--line);transition:.25s ease;box-shadow:0 10px 24px rgba(20,67,50,.05)}
    .card:hover{transform:translateY(-4px);box-shadow:0 16px 34px rgba(20,67,50,.09)}
    .card h3{margin:0 0 10px;font-size:1.08rem}
    .card p{margin:0;color:var(--muted)}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:8px 12px;border-radius:999px;background:#eefaf4;border:1px solid #d2edde;color:#1f644d;font-size:.92rem}
    .timeline{display:grid;gap:12px}
    .step{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:flex-start;padding:18px;border-radius:20px;background:#fbfffd;border:1px solid var(--line)}
    .step .num{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),#7adbb8);color:#fff;font-weight:800}
    .compare-wrap{overflow:auto;border:1px solid var(--line);border-radius:18px}
    table{width:100%;border-collapse:collapse;min-width:760px;background:#fff}
    th,td{padding:14px 16px;text-align:left;border-bottom:1px solid #edf4ef;vertical-align:top}
    th{background:#effaf3;color:#173126;font-size:.95rem}
    td{color:#385046}
    .rating{display:grid;gap:10px;grid-template-columns:1.1fr .9fr}
    .scorebox{padding:22px;border-radius:22px;background:linear-gradient(180deg,#ecfbf4,#ffffff);border:1px solid var(--line)}
    .scorebox .stars{color:#14a06c;font-size:1.2rem;letter-spacing:.15em}
    .scorebox .big{font-size:2rem;font-weight:800;color:#0f5f41}
    .faq{display:grid;gap:10px}
    details{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden}
    summary{list-style:none;cursor:pointer;padding:16px 18px;font-weight:700}
    summary::-webkit-details-marker{display:none}
    details p{margin:0;padding:0 18px 16px;color:var(--muted)}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .quote{padding:20px;border-radius:22px;background:linear-gradient(180deg,#ffffff,#f4fbf7);border:1px solid var(--line)}
    .quote p{margin:0 0 12px;color:#2f463d}
    .quote strong{display:block}
    .articles{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .article{padding:18px;border-radius:20px;background:#fff;border:1px solid var(--line)}
    .article a{display:block;color:var(--text);font-weight:700;margin-bottom:8px}
    .article span{color:var(--muted);font-size:.92rem}
    .form-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:14px}
    form{display:grid;gap:12px}
    .field{display:grid;gap:6px}
    label{font-size:.92rem;font-weight:700;color:#294236}
    input,select,textarea{width:100%;border:1px solid #cfe2d8;border-radius:14px;padding:12px 14px;background:#fff;color:var(--text);font:inherit;outline:none;transition:.2s}
    input:focus,select:focus,textarea:focus{border-color:#8fd6b8;box-shadow:0 0 0 4px rgba(33,165,122,.12)}
    textarea{min-height:128px;resize:vertical}
    .support-box{padding:20px;border-radius:22px;background:#f8fffb;border:1px solid var(--line)}
    .support-box .contact{display:grid;gap:10px;margin-top:14px}
    .support-box .contact div{padding:12px 14px;border-radius:14px;background:#fff;border:1px solid var(--line)}
    .footer{margin-top:18px;padding:24px 0 30px;border-top:1px solid var(--line);background:#f4fbf7;color:#234033}
    .footer a{color:#1b6f51}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px}
    .footer small{color:#5d6f66}
    .float-box{position:fixed;right:18px;bottom:18px;z-index:60;display:grid;gap:10px}
    .float-btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 14px;border-radius:999px;background:linear-gradient(135deg,var(--accent),#1bbd83);color:#fff;box-shadow:0 12px 24px rgba(33,165,122,.26);border:none}
    .float-panel{display:none;width:min(92vw,320px);background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:14px}
    .float-panel.open{display:block}
    .float-panel img{width:100%;border-radius:16px;border:1px solid var(--line)}
    .backtop{position:fixed;left:18px;bottom:18px;z-index:50}
    .backtop button{border:1px solid var(--line);background:#fff;color:var(--text);border-radius:999px;padding:12px 14px;box-shadow:var(--shadow)}
    .anchor-pad{scroll-margin-top:94px}
    .mobile-only{display:none}
    .top-note{padding:10px 0 0;color:var(--muted);font-size:.92rem}
    @media (max-width: 1024px){
      .hero-grid,.form-grid,.rating,.footer-grid{grid-template-columns:1fr}
      .grid-4,.grid-3,.reviews,.articles{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width: 760px){
      .nav-toggle{display:inline-flex}
      .nav{display:none;position:absolute;left:16px;right:16px;top:68px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:var(--shadow)}
      .nav.open{display:flex;flex-direction:column;align-items:stretch}
      .nav a{padding:12px 14px}
      .hero{padding-top:18px}
      .hero-copy{padding:24px}
      .hero-meta,.grid-4,.grid-3,.reviews,.articles{grid-template-columns:1fr}
      .section-card{padding:18px}
      .section-head{flex-direction:column;align-items:flex-start}
      .mobile-only{display:block}
      .desktop-only{display:none}
    }
    .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease, transform .6s ease}
    .reveal.show{opacity:1;transform:none}