:root{
  --green:#0F6E56; --green-600:#1D9E75; --green-50:#E1F5EE;
  --ink:#173404; --text:#22321f; --muted:#5f6b63;
  --bg:#ffffff; --bg2:#f5f9f6; --line:#e2ebe5; --amber:#BA7517;
  --radius:14px; --maxw:1120px;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:var(--green);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-weight:700;font-size:18px;color:var(--ink);letter-spacing:.3px}
.brand small{font-weight:500;color:var(--muted);font-size:12px;margin-left:8px}
.menu{display:flex;gap:22px;align-items:center}
.menu a{color:var(--text);font-size:14px}
.menu a:hover{color:var(--green);text-decoration:none}
.btn{display:inline-block;background:var(--green);color:#fff;padding:10px 18px;border-radius:10px;font-size:14px;font-weight:600;border:none;cursor:pointer}
.btn:hover{background:var(--green-600);text-decoration:none}
.btn.ghost{background:transparent;color:var(--green);border:1px solid var(--green)}
.hero{background:linear-gradient(180deg,var(--green-50),#fff);padding:64px 0 48px}
.hero h1{font-size:38px;line-height:1.2;color:var(--ink);font-weight:700;max-width:760px}
.hero p.lead{font-size:17px;color:var(--muted);margin:16px 0 26px;max-width:640px}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap}
.section{padding:56px 0}
.section.alt{background:var(--bg2)}
h2.sec{font-size:26px;color:var(--ink);margin-bottom:8px}
p.sec-sub{color:var(--muted);margin-bottom:28px;max-width:680px}
.grid{display:grid;gap:20px}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c2{grid-template-columns:repeat(2,1fr)}
.grid.c6{grid-template-columns:repeat(3,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;transition:.15s}
.card:hover{box-shadow:0 6px 22px rgba(15,110,86,.08);border-color:#bfe3d4}
.card h3{font-size:18px;color:var(--ink);margin-bottom:8px}
.card p{font-size:14px;color:var(--muted)}
.tag{display:inline-block;font-size:12px;background:var(--green-50);color:var(--green);padding:3px 10px;border-radius:20px;margin:0 6px 6px 0}
.feat{display:flex;gap:14px;align-items:flex-start}
.feat .ic{width:40px;height:40px;border-radius:10px;background:var(--green-50);color:var(--green);display:flex;align-items:center;justify-content:center;font-weight:700;flex:0 0 40px}
.cta-band{background:var(--green);color:#fff;border-radius:18px;padding:40px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:20px}
.cta-band h2{color:#fff;font-size:24px}
.cta-band p{color:#dff3ec;max-width:520px}
.cta-band .btn{background:#fff;color:var(--green)}
footer.site{background:var(--ink);color:#cfe0d4;padding:40px 0;font-size:14px}
footer.site a{color:#bfe3d4}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}
form.rfq{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;max-width:640px}
form.rfq label{display:block;font-size:13px;font-weight:600;color:var(--ink);margin:14px 0 6px}
form.rfq input,form.rfq select,form.rfq textarea{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;font-size:14px;font-family:inherit}
form.rfq textarea{min-height:120px;resize:vertical}
form.rfq .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.notice{padding:14px 16px;border-radius:10px;background:var(--green-50);color:var(--green);margin-top:16px;font-size:14px;display:none}
.breadcrumb{font-size:13px;color:var(--muted);padding:18px 0 0}
.breadcrumb a{color:var(--muted)}
.supplier .meta{font-size:13px;color:var(--muted);margin:8px 0}
.supplier .meta b{color:var(--ink)}
@media(max-width:860px){.grid.c3,.grid.c6{grid-template-columns:1fr 1fr}.grid.c2{grid-template-columns:1fr}.menu{display:none}.hero h1{font-size:30px}footer .cols{grid-template-columns:1fr}}
@media(max-width:560px){.grid.c3,.grid.c6{grid-template-columns:1fr}form.rfq .row{grid-template-columns:1fr}}