:root{--ink:#111820;--navy:#0c131b;--slate:#52606d;--line:#dbe0e4;--paper:#f5f5f1;--white:#fff;--amber:#d89428;--amber-light:#f0b04a;--max:1240px;--header:84px;font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:96px}body{margin:0;background:var(--paper);line-height:1.65}a{color:inherit;text-decoration:none}button{font:inherit}img{max-width:100%}.skip-link{position:fixed;left:20px;top:-60px;z-index:200;background:var(--white);padding:10px 16px}.skip-link:focus{top:10px}
.site-header{height:var(--header);display:grid;grid-template-columns:280px 1fr auto;align-items:center;padding:0 max(28px,calc((100vw - var(--max))/2));position:fixed;top:0;left:0;right:0;z-index:100;color:var(--white);transition:.35s;background:linear-gradient(180deg,rgba(8,13,18,.92),rgba(8,13,18,.2))}.site-header.scrolled{height:70px;background:rgba(9,15,21,.97);box-shadow:0 10px 30px rgba(0,0,0,.15)}.wordmark{display:flex;flex-direction:column;line-height:1.1}.wordmark-cn{font-size:21px;font-weight:700;letter-spacing:.14em}.wordmark-en{font-size:9px;letter-spacing:.2em;color:#bfc7ce;margin-top:7px}.main-nav{display:flex;justify-content:center;gap:clamp(20px,3vw,46px)}.main-nav a{font-size:14px;letter-spacing:.08em;color:#e7eaed;position:relative}.main-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:-8px;height:1px;background:var(--amber);transition:.25s}.main-nav a:hover:after{right:0}.header-actions{display:flex;align-items:center;gap:12px}.language-switch{display:flex;border:0;background:transparent;color:#aeb6bd;padding:8px;gap:8px;cursor:pointer}.language-switch .active{color:var(--white)}.language-switch span+span{border-left:1px solid #63707b;padding-left:8px}.system-link{border:1px solid rgba(255,255,255,.38);padding:10px 18px;font-size:13px;letter-spacing:.06em;transition:.25s}.system-link:hover{background:var(--amber);border-color:var(--amber);color:#151515}.nav-toggle{display:none}
.hero{min-height:760px;height:100vh;position:relative;display:flex;align-items:center;color:var(--white);overflow:hidden;background:var(--navy)}.hero-image{position:absolute;inset:0;background-image:linear-gradient(90deg,rgba(7,12,17,.92) 0%,rgba(7,12,17,.58) 38%,rgba(7,12,17,.04) 72%),url('/assets/hero-industrial.png');background-size:cover;background-position:center;transform:scale(1.02);animation:heroZoom 12s ease-out both}@keyframes heroZoom{to{transform:scale(1.08)}}.hero-content{position:relative;z-index:2;width:min(670px,calc(100% - 48px));margin-left:max(28px,calc((100vw - var(--max))/2));padding-top:60px}.eyebrow,.section-index{font-size:12px;letter-spacing:.22em;text-transform:uppercase;font-weight:700}.eyebrow{color:var(--amber-light);margin:0 0 22px}.hero h1{font-size:clamp(44px,5.6vw,78px);line-height:1.08;letter-spacing:-.03em;margin:0 0 28px;font-weight:700}.hero-copy{font-size:18px;line-height:1.8;color:#d5dadd;max-width:620px}.hero-actions{display:flex;gap:14px;margin-top:38px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:0 25px;font-size:14px;font-weight:700;letter-spacing:.04em;border:1px solid transparent;transition:.25s}.button.primary{background:var(--amber);color:#151515}.button.primary:hover{background:var(--amber-light);transform:translateY(-2px)}.button.secondary{border-color:rgba(255,255,255,.5);color:var(--white)}.button.secondary:hover{background:var(--white);color:var(--ink)}.hero-stat{position:absolute;right:max(28px,calc((100vw - var(--max))/2));bottom:48px;z-index:2;display:flex;align-items:end;gap:12px}.hero-stat strong{font-size:52px;color:var(--amber);line-height:.8}.hero-stat span{font-size:12px;letter-spacing:.16em;color:#cdd2d6}.scroll-cue{position:absolute;bottom:0;left:50%;z-index:2;width:1px;height:72px;background:rgba(255,255,255,.3);overflow:hidden}.scroll-cue span{display:block;height:28px;background:var(--white);animation:scroll 2s infinite}@keyframes scroll{0%{transform:translateY(-28px)}100%{transform:translateY(72px)}}
.section-shell{width:min(var(--max),calc(100% - 56px));margin-inline:auto}.intro{display:grid;grid-template-columns:1fr 1fr;gap:80px;padding:110px 0}.intro h2,.section-heading h2,.about h2,.contact h2{font-size:clamp(34px,4vw,54px);line-height:1.15;letter-spacing:-.03em;margin:12px 0 0}.intro>p{font-size:19px;color:var(--slate);margin-top:30px}.section-index{color:#9b6b1d;margin:0}.products{padding-bottom:120px}.section-heading{display:grid;grid-template-columns:1.1fr .9fr;gap:80px;align-items:end;margin-bottom:50px}.section-heading>p{color:var(--slate);margin:0}.category-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.category-card{height:420px;position:relative;overflow:hidden;color:var(--white);cursor:pointer;background:var(--navy)}.category-card img{width:100%;height:100%;object-fit:cover;transition:.6s}.category-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 34%,rgba(5,9,13,.9))}.category-card:hover img{transform:scale(1.045)}.category-card-content{position:absolute;z-index:2;left:30px;right:30px;bottom:26px;display:grid;grid-template-columns:1fr auto;align-items:end}.category-card small{display:block;color:var(--amber-light);letter-spacing:.16em;margin-bottom:8px}.category-card h3{font-size:26px;line-height:1.2;margin:0}.category-card b{font-size:28px;font-weight:300}.product-browser{margin-top:46px;background:var(--white);padding:30px}.product-filter{display:flex;flex-wrap:wrap;gap:8px;padding-bottom:22px;border-bottom:1px solid var(--line)}.product-filter button{border:1px solid var(--line);background:transparent;padding:9px 15px;cursor:pointer;color:var(--slate)}.product-filter button.active{background:var(--navy);border-color:var(--navy);color:var(--white)}.product-list{display:grid;grid-template-columns:repeat(3,1fr)}.product-item{position:relative;text-align:left;border:0;border-bottom:1px solid var(--line);background:transparent;padding:22px 46px 22px 4px;cursor:pointer;min-height:95px}.product-item:not(:nth-child(3n)){border-right:1px solid var(--line);padding-left:20px}.product-item span{display:block;color:#8a949c;font-size:11px;letter-spacing:.1em;margin-bottom:5px}.product-item strong{font-size:16px}.product-item:after{content:"↗";position:absolute;right:18px;top:34px;color:var(--amber);font-size:18px}.product-item:hover{background:#faf8f3}
.services{background:var(--navy);color:var(--white);padding:120px 0}.section-heading.inverse .section-index{color:var(--amber-light)}.section-heading.inverse>p{color:#aeb7bf}.service-flow{list-style:none;padding:0;margin:70px 0 0;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid #3d4851}.service-flow li{padding:34px 26px 0 0;border-right:1px solid #3d4851;min-height:220px}.service-flow li+li{padding-left:26px}.service-flow span{color:var(--amber-light);font-size:12px;letter-spacing:.14em}.service-flow h3{font-size:21px;margin:35px 0 10px}.service-flow p{color:#9ea8b0;font-size:14px}
.about{display:grid;grid-template-columns:.9fr 1.1fr;gap:90px;padding:120px 0}.about-visual{min-height:480px;background:linear-gradient(140deg,#111b24,#26323c);color:var(--white);display:flex;flex-direction:column;justify-content:flex-end;padding:46px;position:relative;overflow:hidden}.about-visual:before,.about-visual:after{content:"";position:absolute;border:1px solid rgba(216,148,40,.38);transform:rotate(35deg)}.about-visual:before{width:400px;height:400px;right:-190px;top:-120px}.about-visual:after{width:250px;height:250px;right:-100px;top:80px}.about-visual span{font-size:12px;letter-spacing:.32em;color:var(--amber-light)}.about-visual strong{font-size:clamp(38px,5vw,64px);letter-spacing:.04em;line-height:1.1;margin:12px 0}.about-visual small{letter-spacing:.18em;color:#bdc5cb}.about-copy{padding-top:36px}.about-copy>p:not(.section-index){color:var(--slate);font-size:17px}.about-values{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}.about-values span{border:1px solid #ccd2d7;padding:9px 14px;font-size:13px}
.contact{background:#e8e7e1;padding:110px 0}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:100px}.contact-lead>p:not(.section-index){color:var(--slate);font-size:17px;margin:22px 0 30px}.contact-card{font-style:normal;background:var(--white);padding:34px 40px}.contact-card div{display:grid;grid-template-columns:120px 1fr;gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}.contact-card div:last-child{border:0}.contact-card span{font-size:12px;color:#7b8790;letter-spacing:.08em}.contact-card strong,.contact-card a{font-weight:700}.contact-card a:hover{color:#9b6b1d}.contact-card .pending strong{color:#9ca5ac;font-weight:500}.site-footer{background:#080d12;color:#b7c0c7;min-height:150px;padding:42px max(28px,calc((100vw - var(--max))/2));display:flex;justify-content:space-between;align-items:center}.site-footer div{display:flex;flex-direction:column}.site-footer strong{color:var(--white);letter-spacing:.06em}.site-footer span{font-size:10px;letter-spacing:.15em;margin-top:6px}.site-footer p{font-size:12px}
.product-dialog{width:min(600px,calc(100% - 30px));border:0;padding:45px;box-shadow:0 35px 100px rgba(0,0,0,.35)}.product-dialog::backdrop{background:rgba(5,10,14,.75);backdrop-filter:blur(6px)}.dialog-close{position:absolute;right:18px;top:14px;border:0;background:transparent;font-size:30px;cursor:pointer}.dialog-category{color:#9b6b1d;font-size:12px;letter-spacing:.15em;text-transform:uppercase}.product-dialog h2{font-size:32px;line-height:1.2;margin:10px 0 20px}.product-dialog>p:not(.dialog-category){color:var(--slate)}.dialog-note{background:#f2f0e9;margin:24px 0;padding:15px;font-size:13px;color:#59646c}.reveal{opacity:0;transform:translateY(22px);transition:opacity .65s,transform .65s}.reveal.visible{opacity:1;transform:none}
@media(max-width:980px){.site-header{grid-template-columns:1fr auto auto;padding-inline:24px}.main-nav{position:fixed;inset:70px 0 auto;background:#0a1118;padding:30px 24px;display:none;flex-direction:column}.main-nav.open{display:flex}.nav-toggle{display:flex;width:42px;height:42px;border:0;background:transparent;flex-direction:column;justify-content:center;gap:7px;margin-right:4px}.nav-toggle span{width:22px;height:1px;background:var(--white)}.system-link{padding:9px 12px}.hero{min-height:720px}.category-card{height:330px}.product-list{grid-template-columns:repeat(2,1fr)}.product-item:not(:nth-child(3n)){border-right:0;padding-left:4px}.product-item:nth-child(odd){border-right:1px solid var(--line)}.service-flow{grid-template-columns:repeat(2,1fr)}.service-flow li{border-bottom:1px solid #3d4851}.about,.contact-grid{gap:50px}}
@media(max-width:700px){:root{--header:70px}.site-header{padding-inline:17px}.wordmark-cn{font-size:17px}.wordmark-en{font-size:7px}.header-actions{gap:2px}.system-link{font-size:11px;padding:7px 8px}.language-switch{font-size:12px;padding:6px}.hero{height:auto;min-height:760px}.hero-image{background-image:linear-gradient(180deg,rgba(7,12,17,.55),rgba(7,12,17,.94) 75%),url('/assets/hero-industrial.webp');background-position:64% center}.hero-content{margin-inline:22px;width:auto;padding-top:80px}.hero h1{font-size:44px}.hero-copy{font-size:16px}.hero-actions{align-items:stretch;flex-direction:column;width:220px}.hero-stat{right:22px;bottom:25px}.scroll-cue{display:none}.section-shell{width:calc(100% - 36px)}.intro,.section-heading,.about,.contact-grid{grid-template-columns:1fr;gap:24px}.intro{padding:80px 0}.intro>p{margin-top:0}.products{padding-bottom:80px}.category-grid{grid-template-columns:1fr}.category-card{height:310px}.product-browser{padding:18px 14px}.product-list{grid-template-columns:1fr}.product-item,.product-item:nth-child(odd){border-right:0!important;padding-left:4px}.services{padding:80px 0}.service-flow{grid-template-columns:1fr}.service-flow li,.service-flow li+li{padding:28px 0;min-height:0;border-right:0}.service-flow h3{margin:18px 0 6px}.about{padding:80px 0}.about-visual{min-height:360px;padding:28px}.contact{padding:80px 0}.contact-card{padding:20px}.contact-card div{grid-template-columns:1fr;gap:5px}.site-footer{flex-direction:column;align-items:flex-start;gap:24px}.product-dialog{padding:35px 24px}.product-dialog h2{font-size:27px}}

/* Product photography and confirmed contact channels */
.product-list{gap:16px;padding-top:22px}
.product-item,.product-item:not(:nth-child(3n)),.product-item:nth-child(odd){display:block;overflow:hidden;border:1px solid var(--line);padding:0 0 20px;background:#fff;min-height:285px}
.product-item img{display:block;width:100%;aspect-ratio:16/10;object-fit:cover;margin-bottom:17px;background:#e8ecef}
.product-item span,.product-item strong{display:block;margin-left:18px;margin-right:42px}
.product-item:after{right:18px;top:auto;bottom:18px}
.product-item:hover{background:#f7f6f2;transform:translateY(-2px);box-shadow:0 12px 28px rgba(10,17,24,.08)}
.dialog-image{display:block;width:100%;aspect-ratio:16/10;object-fit:cover;margin:0 0 24px;background:#e8ecef}
.product-dialog{width:min(720px,calc(100% - 30px))}
.contact-card .pending{display:none}
.contact-card .contact-email a{word-break:break-all}
.contact-card .wechat-contact{align-items:start}
.contact-card .wechat-contact>div{display:block;padding:0;border:0}
.contact-card .wechat-contact strong{display:block;margin-bottom:12px}
.wechat-qr{display:block!important;width:230px;height:230px;background:#fff url('/assets/wechat-qr-source.jpg') no-repeat -108px -288px;background-size:443px auto;border:10px solid #fff;box-shadow:0 6px 24px rgba(10,17,24,.12)}
@media(max-width:700px){.product-item,.product-item:nth-child(odd){padding:0 0 20px!important;min-height:0}.product-list{gap:14px}.product-dialog{padding-top:48px}.wechat-qr{width:220px;height:220px;background-position:-103px -276px;background-size:424px auto}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.hero-image,.scroll-cue span{animation:none}.reveal{opacity:1;transform:none;transition:none}}
.hero-image{background-image:linear-gradient(90deg,rgba(7,12,17,.92) 0%,rgba(7,12,17,.58) 38%,rgba(7,12,17,.04) 72%),url('/assets/hero-industrial.webp')}
@media(max-width:700px){.hero-image{background-image:linear-gradient(180deg,rgba(7,12,17,.55),rgba(7,12,17,.94) 75%),url('/assets/hero-industrial.webp')}}