:root{
  --red:#0f7f52;
  --red-dark:#075c3b;
  --ink:#17211d;
  --muted:#66736e;
  --line:#e6ece8;
  --paper:#f6f8f5;
  --white:#fff;
  --green:#0f7f52;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;color:var(--ink);background:var(--white);line-height:1.6}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.site-header{position:sticky;top:0;z-index:50;height:76px;background:rgba(255,255,255,.96);border-bottom:1px solid rgba(0,0,0,.06);display:flex;align-items:center;justify-content:space-between;padding:0 clamp(18px,6vw,76px);backdrop-filter:blur(12px)}
.brand{display:flex;align-items:center;min-width:0}
.brand-logo{width:227px;height:56px;object-fit:contain;display:block}
.nav-links{display:flex;align-items:center;gap:clamp(18px,4vw,58px);font-size:16px}
.nav-links a{position:relative;padding:27px 0;color:#1d2622;white-space:nowrap}
.nav-links a:after{content:"";position:absolute;left:0;right:0;bottom:19px;height:2px;background:var(--red);transform:scaleX(0);transition:.2s ease}
.nav-links a:hover:after,.nav-links a.active:after{transform:scaleX(1)}
.nav-toggle{display:none}
.nav-button{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:6px;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.nav-button span{width:20px;height:2px;background:var(--ink)}
.hero{position:relative;min-height:calc(100vh - 76px);display:flex;align-items:center;padding:92px clamp(22px,8vw,116px);overflow:hidden;background:#111}
.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(90deg,rgba(5,9,8,.78),rgba(5,9,8,.45),rgba(5,9,8,.18)),var(--hero-image);background-size:cover;background-position:center;filter:saturate(.98) contrast(1.04)}
.hero:after{content:"";position:absolute;inset:auto 0 0;height:120px;background:linear-gradient(0deg,rgba(0,0,0,.35),transparent)}
.hero-content{position:relative;z-index:1;color:#fff;max-width:760px}
.eyebrow{margin:0 0 12px;color:var(--red);font-weight:800;font-size:13px;letter-spacing:.14em;text-transform:uppercase}
.hero .eyebrow{color:#fff;background:rgba(15,127,82,.94);display:inline-block;padding:5px 12px;border-radius:2px}
.hero h1{font-size:clamp(46px,8vw,92px);line-height:1;margin:0 0 22px;font-weight:900;letter-spacing:0}
.hero-lead{font-size:clamp(18px,2.3vw,28px);max-width:720px;margin:0 0 34px;color:rgba(255,255,255,.92)}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 24px;border-radius:4px;font-weight:700;border:1px solid transparent}
.btn.primary{background:var(--red);color:#fff}
.btn.ghost{border-color:rgba(255,255,255,.75);color:#fff}
.btn.dark{background:var(--ink);color:#fff}
.section{max-width:1200px;margin:0 auto;padding:76px 22px}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head h2,.about-band h2{font-size:clamp(30px,4vw,46px);line-height:1.15;margin:0;font-weight:850}
.section-head a,.section-head span{color:var(--red);font-weight:800}
.system-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.system-card{background:#fff;border:1px solid var(--line);border-radius:6px;overflow:hidden;min-height:100%;box-shadow:0 16px 38px rgba(28,43,35,.07);transition:.2s ease}
.system-card:hover{transform:translateY(-4px);box-shadow:0 24px 48px rgba(28,43,35,.12)}
.system-card img{width:100%;aspect-ratio:4/3;object-fit:contain;background:#f7f8f6;padding:20px}
.system-card div{padding:22px}
.system-card h3{margin:0 0 10px;font-size:21px}
.system-card p{margin:0 0 18px;color:var(--muted)}
.system-card span{color:var(--red);font-weight:800}
.about-band{max-width:none;background:linear-gradient(110deg,#f2f5f1,#fff);display:grid;grid-template-columns:minmax(220px,360px) minmax(0,620px) auto;align-items:center;gap:30px;padding-left:clamp(22px,8vw,116px);padding-right:clamp(22px,8vw,116px);border-block:1px solid var(--line)}
.about-band p{margin:0;color:#40504a;font-size:17px}
.product-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.product-card{border:1px solid var(--line);border-radius:6px;overflow:hidden;background:#fff;min-width:0;transition:.2s ease}
.product-card:hover{transform:translateY(-3px);box-shadow:0 18px 42px rgba(28,43,35,.1)}
.product-image{display:block;background:#f7f8f6;padding:18px}
.product-image img{width:100%;aspect-ratio:4/3;object-fit:contain}
.product-card strong{display:block;padding:17px 18px 4px;font-size:18px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.product-card span:last-child{display:block;padding:0 18px 18px;color:var(--red);font-weight:800}
.service-strip{display:grid;grid-template-columns:repeat(4,1fr);background:#0f7f52;color:#fff}
.service-strip div{padding:32px clamp(18px,4vw,46px);border-right:1px solid rgba(255,255,255,.18)}
.service-strip strong{display:block;font-size:21px;margin-bottom:6px}
.service-strip span{color:rgba(255,255,255,.82)}
.sub-hero{background:linear-gradient(115deg,rgba(18,30,25,.88),rgba(18,30,25,.66)),url('/assets/products/BvXj8gxW.jpeg');background-size:cover;background-position:center;padding:104px clamp(22px,8vw,116px);color:#fff}
.about-hero{background-image:linear-gradient(115deg,rgba(18,30,25,.82),rgba(18,30,25,.58)),url('/assets/brand/1762503921240.png')}
.detail-hero{padding-top:82px;padding-bottom:82px}
.article-hero,.contact-hero{padding-top:82px;padding-bottom:82px}
.sub-hero .eyebrow{color:#fff;background:var(--red);display:inline-block;padding:4px 10px}
.sub-hero h1{font-size:clamp(42px,7vw,74px);line-height:1;margin:8px 0 14px}
.sub-hero p:last-child{font-size:18px;max-width:720px;color:rgba(255,255,255,.86)}
.about-profile{display:grid;grid-template-columns:minmax(0,1fr) minmax(360px,560px);gap:48px;align-items:center}
.about-copy h2{font-size:clamp(30px,4vw,46px);line-height:1.18;margin:0 0 20px}
.about-copy p{font-size:17px;color:#40504a;margin:0 0 16px}
.about-image{width:100%;border-radius:6px;border:1px solid var(--line);box-shadow:0 22px 54px rgba(28,43,35,.12)}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:28px}
.stat-grid div{border:1px solid var(--line);border-radius:6px;padding:18px;background:#fff}
.stat-grid strong{display:block;color:var(--green);font-size:28px;line-height:1}
.stat-grid span{display:block;color:var(--muted);margin-top:8px}
.values-section{padding-top:20px}
.values-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.values-grid div{border:1px solid var(--line);border-radius:6px;background:#fff;padding:26px}
.values-grid h3{margin:0 0 12px;font-size:22px}
.values-grid p{margin:0;color:var(--muted)}
.detail-page{display:grid;grid-template-columns:260px minmax(0,1fr);gap:34px;align-items:start}
.detail-main{display:grid;grid-template-columns:minmax(320px,560px) minmax(0,1fr);gap:42px;align-items:center;border:1px solid var(--line);border-radius:6px;background:#fff;padding:34px;box-shadow:0 18px 46px rgba(28,43,35,.08)}
.detail-image{background:#f7f8f6;border-radius:6px;padding:28px}
.detail-image img{width:100%;aspect-ratio:4/3;object-fit:contain}
.detail-info h2{font-size:clamp(30px,4vw,48px);line-height:1.15;margin:0 0 18px}
.detail-info p:not(.eyebrow){font-size:17px;color:var(--muted);margin:0 0 24px}
.detail-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn.outline{border-color:var(--green);color:var(--green);background:#fff}
.related-section{padding-top:8px}
.article-page{display:grid;grid-template-columns:260px minmax(0,1fr);gap:34px;align-items:start}
.article-list{min-width:0}
.article-row{display:grid;grid-template-columns:minmax(0,1fr) 130px;gap:18px;align-items:center;border-bottom:1px solid var(--line);padding:18px 0}
.article-row strong{font-size:19px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.article-row span{color:var(--muted);text-align:right}
.article-detail-page{max-width:980px}
.article-detail-card{border:1px solid var(--line);border-radius:6px;background:#fff;padding:42px;box-shadow:0 18px 46px rgba(28,43,35,.08)}
.article-detail-card h2{font-size:clamp(30px,4vw,46px);line-height:1.2;margin:0 0 12px}
.article-detail-card time{display:block;color:var(--muted);margin-bottom:26px}
.article-body p{font-size:17px;color:#34443e;margin:0 0 16px}
.contact-page{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:28px;align-items:start}
.contact-card,.contact-panel,.plus-card,.plus-grid a{border:1px solid var(--line);border-radius:6px;background:#fff;padding:30px;box-shadow:0 18px 46px rgba(28,43,35,.08)}
.contact-card h2,.plus-card h2{font-size:clamp(30px,4vw,44px);margin:0 0 20px}
.contact-card p,.contact-panel p,.plus-card p{font-size:17px;color:#40504a;margin:0 0 14px}
.contact-panel h3{font-size:24px;margin:0 0 12px}
.plus-page{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,520px);gap:28px}
.plus-grid{display:grid;gap:16px}
.plus-grid strong{display:block;font-size:22px;margin-bottom:8px}
.plus-grid span{color:var(--muted)}
.redirect-page{min-height:100vh;display:grid;place-items:center;align-content:center;gap:18px;padding:30px;text-align:center;background:#f6f8f5}
.redirect-page h1{font-size:34px;margin:12px 0 0}
.redirect-page p{color:var(--muted);margin:0}
.product-page{display:grid;grid-template-columns:260px minmax(0,1fr);gap:34px;align-items:start}
.category-panel{position:sticky;top:96px;border:1px solid var(--line);background:#fff;border-radius:6px;padding:18px}
.category-panel h2{font-size:22px;margin:0 0 12px}
.category-panel a{display:block;padding:12px 10px;border-top:1px solid var(--line);color:#36453f}
.category-panel a:hover,.category-panel a.active{color:var(--red);font-weight:800;background:#f0faf6}
.section-head.inline{margin-bottom:20px}
.product-grid.catalog{grid-template-columns:repeat(3,minmax(0,1fr))}
.product-card.compact strong{font-size:17px}
.empty-products{border:1px solid var(--line);border-radius:6px;background:#fff;padding:42px;min-height:280px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center}
.empty-products h3{font-size:28px;margin:0 0 12px}
.empty-products p{margin:0 0 22px;color:var(--muted);font-size:17px}
.site-footer{background:#0b6b45;color:#e7f4ef;padding:52px clamp(22px,8vw,86px) 24px}
.footer-grid{display:grid;grid-template-columns:1.3fr .8fr .8fr;gap:40px;max-width:1200px;margin:0 auto}
.footer-brand{font-size:24px;font-weight:900;color:#fff;margin-bottom:12px}
.site-footer p{color:rgba(255,255,255,.78);max-width:440px}
.site-footer h3{color:#fff;margin:0 0 14px}
.site-footer a,.site-footer span{display:block;color:rgba(255,255,255,.82);margin:8px 0}
.footer-bottom{max-width:1200px;margin:34px auto 0;padding-top:20px;border-top:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.68);font-size:14px}
@media (max-width:960px){
  .nav-button{display:flex}
  .nav-links{position:absolute;left:0;right:0;top:76px;background:#fff;border-bottom:1px solid var(--line);display:none;flex-direction:column;align-items:stretch;gap:0;padding:8px 22px 16px}
  .nav-links a{padding:13px 0}
  .nav-toggle:checked~.nav-links{display:flex}
  .system-grid,.product-grid,.service-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .about-band,.product-page,.footer-grid,.about-profile,.detail-page,.detail-main,.article-page,.contact-page,.plus-page{grid-template-columns:1fr}
  .category-panel{position:static}
  .product-grid.catalog{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:620px){
  .site-header{height:68px;padding:0 16px}
  .brand-logo{width:168px;height:auto}
  .nav-links{top:68px}
  .hero{min-height:600px;padding:76px 20px}
  .hero h1{font-size:48px}
  .section{padding:54px 16px}
  .section-head{align-items:flex-start;flex-direction:column}
  .system-grid,.product-grid,.product-grid.catalog,.service-strip,.values-grid,.stat-grid{grid-template-columns:1fr}
  .about-band{padding:54px 16px}
  .sub-hero{padding:76px 20px}
}