:root{
      --bg:#f5fbf7;
      --bg2:#eef8f1;
      --card:#ffffff;
      --text:#163124;
      --muted:#587063;
      --line:#d9e8de;
      --brand:#41b883;
      --brand2:#2f8f6b;
      --accent:#b8f0d2;
      --soft:#edf9f2;
      --shadow:0 18px 50px rgba(25,62,42,.08);
      --radius:20px;
      --radius-sm:14px;
      --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;background:
      radial-gradient(circle at top left, rgba(65,184,131,.12), transparent 28%),
      radial-gradient(circle at 85% 10%, rgba(79,191,151,.12), transparent 18%),
      linear-gradient(180deg,var(--bg),#fff 34%,var(--bg2));color:var(--text);line-height:1.65}
    a{color:var(--brand2);text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    .container{width:min(var(--container),calc(100% - 32px));margin:0 auto}
    header{position:sticky;top:0;z-index:40;background:rgba(245,251,247,.84);backdrop-filter:blur(14px);border-bottom:1px solid rgba(217,232,222,.75)}
    .topbar{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:44px;height:44px;object-fit:contain}
    .brand strong{display:block;font-size:18px;letter-spacing:.5px}
    .brand span{display:block;font-size:12px;color:var(--muted)}
    nav{display:flex;align-items:center;gap:18px}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
    .nav-links a{font-size:14px;color:#285042;padding:8px 0}
    .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:11px 16px;font-weight:700;transition:.25s ease;cursor:pointer}
    .btn-primary{background:linear-gradient(135deg,var(--brand),#2ca46f);color:#fff;box-shadow:0 10px 24px rgba(65,184,131,.22)}
    .btn-secondary{background:#fff;color:var(--brand2);border-color:var(--line)}
    .btn:hover{transform:translateY(-1px);box-shadow:0 14px 28px rgba(22,49,36,.09)}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px}
    .hero{padding:54px 0 28px}
    .hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:24px;align-items:stretch}
    .hero-copy{background:linear-gradient(180deg,rgba(255,255,255,.86),rgba(255,255,255,.96));border:1px solid rgba(217,232,222,.9);border-radius:28px;padding:34px;box-shadow:var(--shadow);position:relative;overflow:hidden}
    .hero-copy:before{content:"";position:absolute;inset:auto -10% -20% auto;width:260px;height:260px;background:radial-gradient(circle, rgba(65,184,131,.14), transparent 66%);pointer-events:none}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--soft);color:var(--brand2);border:1px solid #dff2e7;padding:8px 14px;border-radius:999px;font-size:13px;font-weight:700}
    h1{margin:18px 0 14px;font-size:clamp(32px,5vw,54px);line-height:1.1;letter-spacing:-.8px}
    .hero p{margin:0;color:var(--muted);font-size:16px;max-width:58ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 22px}
    .micro-tags{display:flex;flex-wrap:wrap;gap:10px}
    .chip{padding:8px 12px;border-radius:999px;background:#f3fbf6;border:1px solid var(--line);font-size:13px;color:#31624c}
    .hero-panel{display:grid;gap:16px}
    .hero-card{background:linear-gradient(180deg,#fff, #f7fcf9);border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:var(--shadow)}
    .hero-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}
    .metric{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px;text-align:left}
    .metric strong{display:block;font-size:24px;color:var(--brand2)}
    .metric span{font-size:13px;color:var(--muted)}
    section{padding:20px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:28px;line-height:1.2}
    .section-head p{margin:0;color:var(--muted);max-width:58ch}
    .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{background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 12px 28px rgba(32,66,47,.06);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
    .card:hover{transform:translateY(-3px);box-shadow:0 18px 36px rgba(32,66,47,.1);border-color:#cbe5d5}
    .card h3{margin:0 0 10px;font-size:18px}
    .card p,.card li{color:var(--muted)}
    .list{padding-left:18px;margin:0}
    .stats-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .stats-strip .card{padding:18px}
    .stats-strip strong{display:block;font-size:28px;color:var(--brand2)}
    .stats-strip span{font-size:13px;color:var(--muted)}
    .process{counter-reset:step}
    .step{position:relative;padding-left:18px}
    .step:before{counter-increment:step;content:counter(step);position:absolute;left:0;top:0;width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700}
    .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:16px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
    th{background:#f3fbf6;color:#244534;font-size:14px}
    tr:last-child td{border-bottom:none}
    .rating{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
    .stars{letter-spacing:2px;color:#d9a441;font-size:18px}
    .quote{display:flex;flex-direction:column;gap:12px}
    .quote .meta{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--muted)}
    .quote strong{color:var(--text)}
    .article-list,.tag-cloud,.network,.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .article-list a{display:block;color:var(--text);font-weight:700;margin-bottom:8px}
    .article-list p{margin:0;color:var(--muted)}
    .tag-cloud{grid-template-columns:repeat(4,1fr)}
    .tag-cloud .card{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud .chip{background:#fff}
    .gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .gallery .card{padding:16px}
    .gallery img{border-radius:16px;border:1px solid var(--line)}
    .faq details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px 18px;box-shadow:0 10px 24px rgba(32,66,47,.05)}
    .faq details+details{margin-top:12px}
    .faq summary{cursor:pointer;list-style:none;font-weight:700;color:var(--text)}
    .faq summary::-webkit-details-marker{display:none}
    .faq .answer{margin-top:10px;color:var(--muted)}
    form{display:grid;gap:12px}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    input,select,textarea{width:100%;border:1px solid var(--line);border-radius:14px;background:#fff;padding:13px 14px;font:inherit;color:var(--text);outline:none;transition:border-color .2s ease,box-shadow .2s ease}
    input:focus,select:focus,textarea:focus{border-color:#8fd7b4;box-shadow:0 0 0 4px rgba(65,184,131,.12)}
    textarea{min-height:120px;resize:vertical}
    footer{margin-top:24px;background:#edf7f1;color:#244534;border-top:1px solid #d7e8dd}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px;padding:24px 0}
    .footer-grid a{color:#285042}
    .footer-bottom{border-top:1px solid #d7e8dd;padding:14px 0;color:#557061;font-size:13px}
    .float-tools{position:fixed;right:16px;bottom:16px;z-index:50;display:grid;gap:10px}
    .float-tools a,.float-tools button{width:46px;height:46px;border-radius:14px;border:1px solid var(--line);background:#fff;box-shadow:0 10px 20px rgba(32,66,47,.08);display:flex;align-items:center;justify-content:center;color:var(--brand2);cursor:pointer}
    .reveal{opacity:0;transform:translateY(18px);transition:opacity .55s ease,transform .55s ease}
    .reveal.in{opacity:1;transform:none}
    .home-link{display:inline-flex;align-items:center;gap:8px}
    .home-link:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--brand)}
    .info-note{padding:14px 16px;border-radius:18px;background:linear-gradient(135deg,#f0fbf5,#fff);border:1px dashed #cde6d9;color:#315244}
    .table-mini{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .mini-item{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px}
    .mini-item strong{display:block;margin-bottom:4px}
    @media (max-width: 1024px){
      .hero-grid,.grid-3,.grid-2,.stats-strip,.article-list,.tag-cloud,.network,.price-grid,.footer-grid{grid-template-columns:1fr 1fr}
      .hero-panel{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width: 768px){
      .container{width:min(var(--container),calc(100% - 24px))}
      nav{position:relative}
      .nav-links{display:none;position:absolute;right:0;top:58px;flex-direction:column;align-items:flex-start;gap:0;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;min-width:220px;box-shadow:var(--shadow)}
      .nav-links.open{display:flex}
      .nav-links a{width:100%;padding:10px 6px}
      .menu-btn{display:inline-flex}
      .nav-actions .btn-secondary{display:none}
      .hero{padding-top:26px}
      .hero-grid,.grid-3,.grid-2,.stats-strip,.article-list,.tag-cloud,.network,.price-grid,.gallery,.form-grid,.table-mini{grid-template-columns:1fr}
      .hero-copy{padding:24px}
      .hero-metrics{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:flex-start}
      .table-wrap{margin-right:-8px}
    }