:root{
  --green:#1A6B3C; --green-d:#134F2C; --green-l:#E8F2EC;
  --red:#C0392B; --ink:#1F2A24; --muted:#6B7B72; --line:#E3EAE5; --bg:#FAFCFB;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--ink);background:#fff;line-height:1.75;font-size:16px}
a{color:inherit;text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}

.topbar{background:var(--green-d);color:#CFE3D6;font-size:12.5px;padding:7px 0}
.topbar .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.hd{display:flex;align-items:center;justify-content:space-between;height:84px}
.logo{display:flex;align-items:center;gap:12px;font-size:21px;font-weight:700;color:var(--green)}
.logo .mark-img{width:60px;height:60px;border-radius:50%;display:block;flex:0 0 auto}
.logo{gap:10px}
nav{display:flex;gap:4px}
nav a{padding:9px 16px;border-radius:8px;font-size:15px;color:var(--ink);transition:.18s}
nav a:hover{background:var(--green-l);color:var(--green)}
nav a.on{background:var(--green);color:#fff;font-weight:600}
.burger{display:none;font-size:22px;background:none;border:0;color:var(--green);cursor:pointer}

.hero{background:linear-gradient(135deg,var(--green) 0%,var(--green-d) 100%);color:#fff;padding:70px 0 64px}
.hero h1{font-size:34px;line-height:1.35;font-weight:700;margin-bottom:16px}
.hero p{font-size:16.5px;opacity:.92;max-width:640px}
.hero .btns{margin-top:28px;display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 26px;border-radius:9px;font-size:15px;font-weight:600;transition:.18s}
.btn-w{background:#fff;color:var(--green)}
.btn-o{border:1.5px solid rgba(255,255,255,.6);color:#fff}

section{padding:56px 0}
.sec-t{font-size:24px;font-weight:700;margin-bottom:8px}
.sec-s{color:var(--muted);font-size:14.5px;margin-bottom:32px}
.grid{display:grid;gap:20px}
.g3{grid-template-columns:repeat(3,1fr)}
.card{border:1px solid var(--line);border-radius:12px;padding:24px;background:#fff;transition:.2s}
.card:hover{border-color:#BFD8C9;box-shadow:0 4px 18px rgba(26,107,60,.07);transform:translateY(-2px)}
.card h3{font-size:16.5px;margin-bottom:8px;color:var(--green-d)}
.card p{font-size:14px;color:var(--muted)}

.news-item{display:flex;gap:20px;padding:20px 0;border-bottom:1px solid var(--line);transition:.18s}
.news-item:hover{background:var(--bg)}
.news-item .d{flex:0 0 96px;color:var(--muted);font-size:13.5px;padding-top:2px}
.news-item h3{font-size:16.5px;font-weight:600;margin-bottom:6px}
.news-item:hover h3{color:var(--green)}
.news-item p{font-size:13.8px;color:var(--muted)}
.tag{display:inline-block;font-size:11.5px;padding:2px 9px;border-radius:20px;
  background:var(--green-l);color:var(--green);margin-right:8px;vertical-align:2px}

.prod .thumb{height:180px;border-radius:9px;background:#fff;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;padding:10px;overflow:hidden}
.prod .thumb img{width:100%;height:100%;object-fit:contain;display:block}
.detail .pimg{display:flex;justify-content:center;padding:20px;background:#fff;
  border:1px solid var(--line);border-radius:12px;margin-bottom:26px}
.detail .pimg img{max-width:280px;max-height:340px;object-fit:contain}
.prod h3{font-size:15.5px;line-height:1.5}
.prod .meta{font-size:12.5px;color:var(--muted);margin-top:10px;line-height:1.9}
.prod .meta b{color:var(--ink);font-weight:600}
.otc-tag{display:inline-block;font-size:11px;padding:1px 7px;border-radius:4px;margin-top:8px}
.otc-a{background:#FDECEA;color:var(--red)}
.otc-b{background:#E8F5E9;color:#2E7D32}

.detail{max-width:800px}
.detail h1{font-size:26px;margin-bottom:14px;line-height:1.4}
.detail .sub{color:var(--muted);font-size:13.5px;padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:24px}
.detail .body p{margin-bottom:16px;font-size:15.5px}
.detail dl{display:grid;grid-template-columns:110px 1fr;gap:12px 16px;font-size:14.5px}
.detail dt{color:var(--muted)}
.detail dd{font-weight:500}
.back{display:inline-block;margin-top:28px;color:var(--green);font-size:14px}

.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.info-row{display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed var(--line)}
.info-row .k{flex:0 0 96px;color:var(--muted);font-size:14px}
.info-row .v{font-size:15px}
form label{display:block;font-size:13.5px;color:var(--muted);margin:0 0 6px}
form input,form textarea{width:100%;padding:11px 14px;border:1px solid var(--line);
  border-radius:8px;font-size:14.5px;font-family:inherit;margin-bottom:16px;outline:none}
form input:focus,form textarea:focus{border-color:var(--green)}
form button{background:var(--green);color:#fff;border:0;padding:12px 30px;border-radius:9px;
  font-size:15px;font-weight:600;cursor:pointer;font-family:inherit}

.notice{background:var(--green-l);border-left:3px solid var(--green);padding:14px 18px;
  border-radius:0 8px 8px 0;font-size:13.8px;color:var(--green-d);margin:24px 0}
.warn{background:#FFF6F5;border-left:3px solid var(--red);padding:14px 18px;
  border-radius:0 8px 8px 0;font-size:13.8px;color:#8C2018;margin:24px 0}

.cert{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:20px}
.cert-item{border:1px solid var(--line);border-radius:10px;padding:16px 18px;background:var(--bg)}
.cert-item .l{font-size:12.5px;color:var(--muted);margin-bottom:6px}
.cert-item .v{font-size:14.5px;font-weight:600;color:var(--green-d)}

footer{background:#0E3D22;color:#9FBFAC;padding:44px 0 26px;margin-top:60px;font-size:13.5px}
.ft{display:grid;grid-template-columns:2fr 1fr 1fr;gap:36px;margin-bottom:30px}
footer h4{color:#fff;font-size:14.5px;margin-bottom:14px}
footer a:hover{color:#fff}
footer .bar{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:#7FA890}

@media(max-width:900px){.g3{grid-template-columns:1fr 1fr}.contact-grid,.ft,.cert{grid-template-columns:1fr}}
@media(max-width:640px){
  .g3{grid-template-columns:1fr}.hero h1{font-size:26px}
  nav{display:none;position:absolute;top:84px;left:0;right:0;background:#fff;
    flex-direction:column;padding:10px 16px;border-bottom:1px solid var(--line)}
  nav.open{display:flex}.burger{display:block}.hd{position:relative}
  .news-item{flex-direction:column;gap:6px}.news-item .d{flex:auto}
  .detail dl{grid-template-columns:1fr;gap:4px}
}