:root{
  --green:#128a5e;
  --green-dark:#0c6b48;
  --green-light:#e8f5ee;
  --ink:#1c2b25;
  --muted:#5d6f67;
  --line:#e6ece9;
  --bg:#ffffff;
  --bg-soft:#f6f8f7;
  --radius:16px;
  --shadow:0 6px 24px rgba(18,138,94,.08);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased;
}
a{color:var(--green);text-decoration:none}
a:hover{color:var(--green-dark)}
img{max-width:100%;display:block}
.container{max-width:1160px;margin:0 auto;padding:0 22px}
.wrap{max-width:1160px;margin:0 auto;padding:0 22px}

/* Header */
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:9px;font-weight:700;font-size:19px;color:var(--ink)}
.logo .dot{width:11px;height:11px;border-radius:50%;background:var(--green);box-shadow:0 0 0 4px var(--green-light)}
.logo span.b{color:var(--green)}
.navlinks{display:flex;gap:28px;align-items:center}
.navlinks a{color:var(--ink);font-weight:500;font-size:15px}
.navlinks a:hover{color:var(--green)}
.btn{display:inline-block;background:var(--green);color:#fff;padding:10px 18px;border-radius:999px;font-weight:600;font-size:14px;transition:.2s}
.btn:hover{background:var(--green-dark);color:#fff}
.btn.ghost{background:transparent;color:var(--green);border:1.5px solid var(--green)}
.btn.lg{padding:14px 26px;font-size:16px}
.menu-toggle{display:none}

/* Hero */
.hero{background:linear-gradient(135deg,#f0faf4 0%,#ffffff 60%);padding:74px 0 64px}
.hero h1{font-size:42px;line-height:1.15;letter-spacing:-.5px;max-width:760px}
.hero h1 .hl{color:var(--green)}
.hero p.sub{font-size:18px;color:var(--muted);margin:20px 0 30px;max-width:640px}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap}
.stats{display:flex;gap:38px;margin-top:48px;flex-wrap:wrap}
.stat .n{font-size:30px;font-weight:700;color:var(--green-dark)}
.stat .l{font-size:13px;color:var(--muted)}

/* Sections */
section.block{padding:64px 0}
.section-head{margin-bottom:34px}
.section-head h2{font-size:30px;letter-spacing:-.3px}
.section-head p{color:var(--muted);margin-top:8px;font-size:16px}
.soft{background:var(--bg-soft)}

/* Category cards */
.grid{display:grid;gap:20px}
.grid.cats{grid-template-columns:repeat(4,1fr)}
.catcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;transition:.2s}
.catcard:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.catcard .ic{width:44px;height:44px;border-radius:12px;background:var(--green-light);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:14px}
.catcard h3{font-size:18px;margin-bottom:6px}
.catcard p{color:var(--muted);font-size:14px}

/* Product cards */
.grid.prods{grid-template-columns:repeat(3,1fr)}
.prodcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.2s;display:flex;flex-direction:column}
.prodcard:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.prodcard .ph{height:120px;background:linear-gradient(135deg,var(--green-light),#fff);display:flex;align-items:center;justify-content:center;font-size:40px}
.prodcard .pb{padding:18px 20px 22px;flex:1;display:flex;flex-direction:column}
.prodcard h3{font-size:17px;margin-bottom:6px}
.prodcard .cat{font-size:12px;color:var(--green);font-weight:600;text-transform:uppercase;letter-spacing:.5px}
.prodcard p{color:var(--muted);font-size:14px;margin:8px 0 14px;flex:1}
.prodcard .more{font-weight:600;font-size:14px}

/* Why choose */
.feats{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.feat .ic{font-size:26px;margin-bottom:10px}
.feat h4{font-size:17px;margin-bottom:6px}
.feat p{color:var(--muted);font-size:14px}

/* CTA band */
.ctaband{background:var(--green);color:#fff;border-radius:var(--radius);padding:42px;text-align:center;margin:0 0 64px}
.ctaband h2{color:#fff;font-size:28px}
.ctaband p{opacity:.92;margin:10px 0 22px}
.ctaband .btn{background:#fff;color:var(--green)}
.ctaband .btn:hover{background:#eafff4;color:var(--green-dark)}

/* Breadcrumb */
.breadcrumb{font-size:13px;color:var(--muted);padding:16px 0}
.breadcrumb a{color:var(--muted)}
.breadcrumb span{margin:0 7px}

/* Product detail */
.phead{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;padding:20px 0 40px}
.phead .ph{height:240px;border-radius:var(--radius);background:linear-gradient(135deg,var(--green-light),#fff);display:flex;align-items:center;justify-content:center;font-size:90px}
.phead h1{font-size:34px;letter-spacing:-.3px}
.phead .tag{color:var(--green);font-weight:600;text-transform:uppercase;font-size:13px;letter-spacing:.6px}
.phead p.lead{color:var(--muted);margin:14px 0 20px;font-size:16px}
.spectable{width:100%;border-collapse:collapse;margin:26px 0;font-size:14px}
.spectable th,.spectable td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.spectable th{background:var(--bg-soft);width:38%;color:var(--ink);font-weight:600}
.spectable td{color:var(--muted)}
.applist{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:18px 0}
.applist li{padding-left:26px;position:relative;font-size:15px;color:var(--ink)}
.applist li:before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:700}
.faq{margin:24px 0}
.faq .q{font-weight:600;margin:16px 0 4px;font-size:16px}
.faq .a{color:var(--muted);font-size:15px}
.related{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:18px}

/* News */
.newsgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.newscard{border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:#fff}
.newscard .date{font-size:13px;color:var(--green);font-weight:600}
.newscard h3{font-size:18px;margin:8px 0}
.newscard p{color:var(--muted);font-size:14px}

/* Contact */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contact .info p{margin:10px 0;font-size:15px;color:var(--ink)}
.contact .info .big{font-size:18px;font-weight:600}
.contact form{display:flex;flex-direction:column;gap:12px}
.contact input,.contact textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:15px;font-family:inherit}
.contact input:focus,.contact textarea:focus{outline:none;border-color:var(--green)}
.note{font-size:13px;color:var(--muted)}

/* Footer */
footer.site{background:#0e1a16;color:#cfe3da;padding:48px 0 30px;margin-top:40px}
.foot{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}
.foot h5{color:#fff;font-size:15px;margin-bottom:14px}
.foot a{color:#cfe3da;font-size:14px;display:block;margin:7px 0}
.foot a:hover{color:#fff}
.foot .copy{border-top:1px solid #24352d;margin-top:30px;padding-top:18px;font-size:13px;color:#8faea2}

@media(max-width:900px){
  .grid.cats{grid-template-columns:repeat(2,1fr)}
  .grid.prods{grid-template-columns:repeat(2,1fr)}
  .feats{grid-template-columns:1fr}
  .phead,.contact{grid-template-columns:1fr}
  .newsgrid{grid-template-columns:1fr}
  .related{grid-template-columns:1fr}
  .applist{grid-template-columns:1fr}
  .foot{grid-template-columns:1fr 1fr}
  .hero h1{font-size:32px}
  .navlinks{position:fixed;top:64px;left:0;right:0;background:#fff;flex-direction:column;gap:0;padding:10px 22px;border-bottom:1px solid var(--line);display:none}
  .navlinks.open{display:flex}
  .navlinks a{padding:12px 0;border-bottom:1px solid var(--line)}
  .menu-toggle{display:block;background:none;border:none;font-size:24px;cursor:pointer;color:var(--ink)}
}