:root{--ink: #1f1b18;--muted: #67605a;--paper: #f7f5f2;--surface: #ffffff;--line: #e1dad4;--brand-red: #e73a18;--brand-red-dark: #b92713;--brand-red-deep: #7e1b10;--industrial: var(--brand-red-dark);--teal: #2f6d7e;--copper: #a45b35;--steel: #40586c;--olive: #6f6940;--soft-red: #fff1ee;--soft-steel: #edf3f5;--shadow: 0 18px 60px rgba(45, 31, 24, .12);--max: 1180px}*{box-sizing:border-box}html{color:var(--ink);background:var(--paper);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans,Noto Sans CJK SC,Arial,sans-serif;line-height:1.5}body{margin:0}img{display:block;max-width:100%}a{color:inherit;text-decoration:none}p{margin:0}.site-header{position:sticky;z-index:20;top:0;display:grid;grid-template-columns:minmax(220px,1fr) auto auto auto;align-items:center;gap:28px;padding:14px clamp(18px,4vw,48px);background:#ffffffeb;border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}.brand{display:inline-flex;align-items:center;min-width:0;gap:12px}.brand-logo{width:56px;height:auto;flex:0 0 auto}.brand strong,.brand small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.brand strong{font-size:.98rem}.brand small{max-width:420px;color:var(--muted);font-size:.72rem}.desktop-nav{display:flex;gap:24px;font-size:.94rem;font-weight:650}.desktop-nav a{padding:8px 0 9px;border-bottom:2px solid transparent}.desktop-nav a:hover{border-color:var(--brand-red);color:var(--brand-red-dark)}.language-strip{display:flex;align-items:center;gap:4px;padding:4px;border:1px solid var(--line);border-radius:999px;background:#fbfaf8}.language-link{display:grid;min-width:34px;height:30px;place-items:center;border-radius:999px;color:var(--muted);font-size:.78rem;font-weight:700}.language-link.active{background:var(--industrial);color:#fff}.mobile-menu{display:none}.section{padding:clamp(52px,8vw,96px) clamp(18px,4vw,48px)}.section-inner{width:min(100%,var(--max));margin:0 auto}.eyebrow{margin-bottom:14px;color:var(--industrial);font-size:.82rem;font-weight:760;letter-spacing:.08em;text-transform:uppercase}.page-head{padding:clamp(64px,9vw,112px) clamp(18px,4vw,48px) clamp(40px,6vw,72px);background:var(--surface);border-bottom:1px solid var(--line)}.page-head .section-inner{display:grid;gap:18px}h1,h2,h3{margin:0;line-height:1.08;letter-spacing:0}h1{max-width:980px;font-size:clamp(2.35rem,6vw,5.9rem)}h2{font-size:clamp(1.7rem,3vw,3rem)}h3{font-size:1.12rem}.lead{max-width:780px;color:var(--muted);font-size:clamp(1.05rem,2vw,1.28rem)}.button-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 18px;border:1px solid var(--industrial);border-radius:999px;background:var(--industrial);color:#fff;font-weight:760}.button.secondary{background:transparent;color:var(--industrial)}.hero{min-height:clamp(420px,58vh,540px);padding:clamp(34px,4.2vw,60px) clamp(18px,4vw,48px) clamp(24px,3vw,36px);background-image:linear-gradient(90deg,#1d1613cc,#1d16137a,#1d16131f),url(/assets/product-rolls.webp);background-position:center 42%;background-size:cover;color:#fff}.hero .section-inner{display:grid;min-height:clamp(270px,36vh,340px);align-content:end}.hero .eyebrow,.hero .lead{color:#ffffffd6}.hero .lead{max-width:820px;font-size:clamp(.98rem,1.2vw,1.08rem)}.hero h1{max-width:900px;font-size:clamp(2.2rem,4vw,3.65rem)}.hero .button.secondary{border-color:#ffffffb8;color:#fff}.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line);border-block:1px solid var(--line)}.stat{min-height:112px;padding:22px clamp(18px,3vw,36px);background:var(--surface)}.stat strong{display:block;color:var(--brand-red-dark);font-size:clamp(1.25rem,2vw,1.8rem);line-height:1.1}.stat span{color:var(--muted);font-size:.95rem;font-weight:650}.certification-strip{padding:28px clamp(18px,4vw,48px);background:var(--soft-red);border-bottom:1px solid var(--line)}.certification-strip-inner{display:grid;grid-template-columns:minmax(260px,.9fr) minmax(0,1.1fr);gap:clamp(22px,4vw,48px);align-items:center}.certification-strip h2{font-size:clamp(1.45rem,2.4vw,2.25rem)}.certification-strip p:last-child{color:var(--muted);font-size:1.02rem}.split{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:clamp(28px,5vw,72px);align-items:center}.image-panel{overflow:hidden;border-radius:8px;box-shadow:var(--shadow)}.image-panel img{width:100%;height:100%;min-height:360px;object-fit:cover}.product-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:34px}.product-card{background:var(--surface);border:1px solid var(--line);border-radius:8px;overflow:hidden;transition:transform .16s ease,border-color .16s ease}.product-card:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--accent),var(--line) 35%)}.product-card img{width:100%;aspect-ratio:4 / 3;object-fit:cover;background:#f2efeb}.product-card div{padding:20px}.product-card p{margin-bottom:8px;color:var(--accent);font-size:.82rem;font-weight:760}.product-card h2{min-height:72px;font-size:1.35rem}.product-card span{display:inline-block;margin-top:18px;color:var(--brand-red-dark);font-weight:760}.feature-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:26px 0 0;padding:0;list-style:none}.feature-list li{padding:16px 18px;border-left:4px solid var(--industrial);background:#e73a1812;border-radius:0 8px 8px 0;color:var(--ink);font-weight:650}.certification-section{background:var(--surface)}.certification-list li{background:#e73a1814}.certification-images{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.certification-images img{width:100%;height:170px;object-fit:cover;border:1px solid var(--line);border-radius:8px;background:#fff}.certification-images img:first-child{grid-column:1 / -1;height:210px}.band{background:#211816;color:#fff}.band .lead,.band p{color:#ffffffc7}.band-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(28px,5vw,72px)}.service-grid,.facts-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:28px}.service-grid span,.facts-grid div{padding:18px;border:1px solid rgba(255,255,255,.18);border-radius:8px;background:#ffffff0f}.facts-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.facts-grid strong{display:block;margin-bottom:6px;color:var(--brand-red)}.text-stack{display:grid;gap:16px;color:var(--muted)}.table-wrap{margin-top:28px;overflow-x:auto;border:1px solid var(--line);border-radius:8px;background:var(--surface)}.spec-table{width:100%;min-width:860px;border-collapse:collapse;font-size:.92rem}.spec-table th,.spec-table td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.spec-table thead th{background:var(--soft-red);color:var(--ink);font-size:.78rem;text-transform:uppercase;letter-spacing:.06em}.spec-table tbody th{color:var(--brand-red-dark);font-weight:800}.note{margin-top:16px;color:var(--muted);font-size:.92rem}.family-hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,420px);gap:clamp(28px,5vw,64px);align-items:end}.family-hero img{width:100%;aspect-ratio:4 / 3;object-fit:cover;border-radius:8px;box-shadow:var(--shadow)}.two-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}.check-list{display:grid;gap:10px;margin:18px 0 0;padding:0;list-style:none}.check-list li{position:relative;padding-left:22px;color:var(--muted)}.check-list li:before{position:absolute;top:.62em;left:0;width:8px;height:8px;border-radius:50%;background:var(--brand-red);content:""}.contact-panel{display:grid;grid-template-columns:1fr 1fr;gap:24px}.contact-box{padding:clamp(24px,4vw,38px);border:1px solid var(--line);border-radius:8px;background:var(--surface)}.contact-box dl{display:grid;gap:16px;margin:22px 0 0}.contact-box dt{color:var(--muted);font-size:.82rem;font-weight:760;text-transform:uppercase}.contact-box dd{margin:4px 0 0;font-weight:650}.wechat-contact{display:inline-flex;align-items:center;padding:6px;border:1px solid var(--line);border-radius:6px;background:#fff;line-height:0;transition:border-color .16s ease,box-shadow .16s ease}.wechat-contact:hover,.wechat-contact:focus-visible{border-color:#07c1608c;box-shadow:0 0 0 3px #07c1601a}.wechat-contact img{width:112px;height:auto;border-radius:4px}.wechat-contact--compact{padding:4px}.wechat-contact--compact img{width:72px}.footer-wechat{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:10px}.site-footer{padding:46px clamp(18px,4vw,48px) 28px;background:#211816;color:#fff}.footer-grid{display:grid;width:min(100%,var(--max));grid-template-columns:1.1fr 1fr .8fr;gap:34px;margin:0 auto}.footer-grid>div{min-width:0}.site-footer h2{margin-bottom:10px;font-size:.9rem;text-transform:uppercase;letter-spacing:.08em}.site-footer p,.site-footer small{color:#ffffffb8}.site-footer .brand-logo{filter:drop-shadow(0 6px 18px rgba(231,58,24,.18))}.site-footer .brand{align-items:flex-start;max-width:100%}.site-footer .brand>span{min-width:0}.site-footer .brand small{max-width:32ch;overflow:visible;text-overflow:clip;white-space:normal}.site-footer .wechat-contact{border-color:#fff3;background:#ffffff0f;color:#fff}.site-footer .wechat-contact:hover,.site-footer .wechat-contact:focus-visible{border-color:#07c160b3;background:#ffffff17}.footer-note{width:min(100%,var(--max));margin:30px auto 0;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);font-size:.82rem}@media(max-width:980px){.site-header{grid-template-columns:1fr auto}.desktop-nav,.language-strip{display:none}.mobile-menu{display:block;position:relative}.mobile-menu summary{display:grid;width:44px;height:44px;place-items:center;border:1px solid var(--line);border-radius:50%;list-style:none;cursor:pointer}.mobile-menu summary::-webkit-details-marker{display:none}.mobile-menu summary span{display:block;width:18px;height:2px;margin:2px 0;background:var(--ink)}.mobile-panel{position:absolute;right:0;width:min(84vw,320px);margin-top:10px;padding:18px;border:1px solid var(--line);border-radius:8px;background:var(--surface);box-shadow:var(--shadow)}.mobile-panel a{display:block;padding:12px;font-weight:760}.mobile-languages{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin-top:8px}.split,.band-grid,.certification-strip-inner,.family-hero,.contact-panel,.footer-grid{grid-template-columns:1fr}.product-grid,.service-grid,.facts-grid,.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:640px){.brand small{max-width:210px}.hero{min-height:calc(100vh - 72px);padding-top:72px}.hero .section-inner{min-height:420px}.hero h1{font-size:clamp(2.15rem,10vw,3.15rem)}.product-grid,.service-grid,.facts-grid,.feature-list,.two-columns,.stat-grid{grid-template-columns:1fr}.product-card h2{min-height:auto}}