@charset "UTF-8";
:root{--ink:#25262b;--coal:#171821;--coal2:#20212b;--gold:#b4975d;--gold-dark:#8b7142;--paper:#fafaf8;--white:#fff;--mist:#ececea;--muted:#777980;--line:#e4e3df;--serif:Georgia,"Times New Roman",serif;--sans:"PingFang SC","Noto Sans CJK SC","Microsoft YaHei",Arial,sans-serif;--max:1200px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font-family:var(--sans);font-size:16px;line-height:1.72;-webkit-font-smoothing:antialiased}img,svg{display:block;max-width:100%}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button,a,input,textarea{outline-offset:4px}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #d2ad63}button{cursor:pointer}.skip-link{position:absolute;top:-60px;left:16px;z-index:99;padding:10px 14px;background:#fff;color:#111}.skip-link:focus{top:10px}.visually-hidden{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}.container{width:min(var(--max),calc(100% - 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auto;max-width:730px;color:#d6d6d8;font-size:16px}.hero-actions{display:flex;justify-content:center;gap:14px;margin-top:26px}.button{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:47px;padding:0 25px;border:1px solid var(--gold);background:var(--gold);color:#fff;font-size:14px;font-weight:600;transition:background .18s,border-color .18s,transform .18s}.button:hover{background:#9b804d;border-color:#9b804d;transform:translateY(-1px)}.button-outline{background:transparent;color:#fff;border-color:#777982}.button-outline:hover{color:#fff;border-color:var(--gold)}.hero-art{width:min(540px,calc(100% - 32px));height:540px;object-fit:contain;margin:15px auto 0;filter:drop-shadow(0 20px 35px rgba(0,0,0,.42))}.art-caption{margin:-3px 0 18px;color:#aeb0b5;font-size:11px;letter-spacing:.02em}.section{padding:78px 0}.section-tight{padding:56px 0}.section-heading{text-align:center;margin:0 auto 42px}.section-heading h2{margin:0;font-size:31px;line-height:1.35;font-weight:600;letter-spacing:.015em}.section-heading .en{margin:9px 0 0;color:#999a9e;font:12px var(--serif);letter-spacing:.16em;text-transform:uppercase}.section-heading .intro{max-width:670px;margin:14px auto 0;color:var(--muted);font-size:14px}.advantages{background:#fff;padding:61px 0 67px}.advantages .section-heading{margin-bottom:38px}.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}.adv-item{text-align:center;padding:4px 20px}.adv-icon{width:74px;height:74px;border:1px solid var(--gold);border-radius:50%;margin:0 auto 18px;display:grid;place-items:center;color:var(--gold-dark);background:#fff}.adv-icon svg{width:31px;height:31px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}.adv-item h3{font-size:16px;margin:0 0 8px;font-weight:600}.adv-item p{margin:0;color:var(--muted);font-size:13px;line-height:1.8}.about-feature{background:#f1f1ef}.about-split{display:grid;grid-template-columns:1.03fr .97fr;align-items:center;gap:64px}.about-copy{padding:12px 0 12px 9px}.section-kicker{margin:0 0 12px;color:var(--gold-dark);font-size:12px;letter-spacing:.12em;font-weight:600}.about-copy h2,.split-copy h2{font-size:31px;line-height:1.4;margin:0 0 19px;font-weight:600}.about-copy p,.split-copy p{color:#64666c;font-size:14px;line-height:2;margin:0 0 13px}.text-link{display:inline-flex;gap:8px;align-items:center;color:var(--gold-dark);font-size:14px;font-weight:600;margin-top:11px}.text-link:hover{color:#66502a}.framed-art{position:relative;padding:20px 20px 8px 8px;min-width:0}.framed-art:before{content:"";position:absolute;right:0;top:0;width:78%;height:84%;border-top:2px solid var(--gold);border-right:2px solid var(--gold)}.framed-art:after{content:"";position:absolute;left:0;bottom:0;width:57%;height:47%;border-left:2px solid var(--gold);border-bottom:2px solid var(--gold);pointer-events:none}.framed-art img{position:relative;width:100%;height:350px;object-fit:contain;background:linear-gradient(140deg,#e3e3df,#f7f7f5);z-index:1}.product-section{background:#fff}.product-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}.product-card{display:flex;flex-direction:column;min-width:0;background:#fff;border:1px solid #e8e7e2;transition:transform .2s,border-color .2s,box-shadow .2s}.product-card:hover{transform:translateY(-4px);border-color:#d2c29e;box-shadow:0 14px 30px rgba(35,35,35,.08)}.product-card[hidden]{display:none!important}.product-card .product-image{height:185px;display:grid;place-items:center;padding:16px;background:#f5f5f2;overflow:hidden}.product-card img{width:100%;height:100%;object-fit:contain}.product-card .product-copy{padding:17px 18px 20px}.product-card h3{margin:0 0 8px;font-size:16px;line-height:1.5;font-weight:600}.product-card p{margin:0;color:var(--muted);font-size:12px;line-height:1.7;min-height:41px}.product-card .card-link{display:inline-flex;margin-top:11px;color:var(--gold-dark);font-size:12px;font-weight:600}.product-band{background:var(--coal);color:#fff;padding:40px 0}.product-band-row{display:flex;align-items:center;justify-content:space-between;gap:30px}.product-band h2{margin:0 0 5px;font-size:22px;font-weight:550}.product-band p{margin:0;color:#c3c4c8;font-size:14px}.gold-link{color:#dbc28f;font-size:14px;white-space:nowrap}.gold-link:hover{color:#fff}.industry-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.industry-card{position:relative;min-height:178px;padding:26px 25px;background:#fff;border:1px solid var(--line)}.industry-card:before{content:"";position:absolute;left:0;top:0;width:3px;height:38px;background:var(--gold)}.industry-card h3{margin:0 0 9px;font-size:17px;font-weight:600}.industry-card 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h3{font-size:16px;margin:0 0 7px}.news-item p{font-size:13px;color:var(--muted);margin:0}.news-item .text-link{margin-top:9px;font-size:12px}.page-hero{background:linear-gradient(120deg,#191a23,#272832);color:#fff;padding:65px 0 58px}.page-hero .container{position:relative}.breadcrumbs{font-size:12px;color:#b9bac0;margin:0 0 23px}.breadcrumbs a:hover{color:#e2c88e}.breadcrumbs span{margin:0 8px;color:#8f9097}.page-hero h1{margin:0 0 13px;font-size:38px;line-height:1.3;font-weight:600}.page-hero .lede{max-width:780px;margin:0;color:#d1d1d4;font-size:15px;line-height:1.85}.page-hero .eyebrow{justify-content:flex-start;margin-bottom:10px}.page-hero .eyebrow:before{display:none}.content-grid{display:grid;grid-template-columns:260px minmax(0,1fr);gap:46px;align-items:start}.sidebar{position:sticky;top:24px;padding:20px;background:#fff;border:1px solid var(--line)}.sidebar h2{font-size:16px;margin:0 0 13px}.sidebar a{display:block;padding:9px 0;color:#5e6066;font-size:13px;border-top:1px solid #efeee9}.sidebar a:hover,.sidebar a[aria-current=page]{color:var(--gold-dark)}.article-content{min-width:0}.article-content h2{font-size:24px;line-height:1.45;margin:0 0 17px;font-weight:600}.article-content h3{font-size:18px;margin:31px 0 12px;font-weight:600}.article-content p{margin:0 0 17px;color:#5f6167;font-size:15px;line-height:1.95}.article-content ul,.article-content ol{padding-left:1.4em;margin:13px 0 22px;color:#55575d}.article-content li{padding:4px 0;line-height:1.8}.info-box{margin:24px 0;padding:20px 23px;border-left:3px solid var(--gold);background:#f0efeb;color:#56575d;font-size:14px;line-height:1.9}.product-detail-layout{display:grid;grid-template-columns:minmax(280px,.84fr) minmax(0,1.16fr);gap:44px;align-items:start}.detail-visual{position:sticky;top:25px;padding:20px;background:#f0f0ed;border:1px solid #e2e1dc}.detail-visual img{width:100%;height:350px;object-fit:contain}.detail-visual 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li{position:relative;padding:17px 18px 17px 62px;margin:0 0 11px;background:#fff;border:1px solid var(--line);counter-increment:steps}.step-list li:before{content:counter(steps,decimal-leading-zero);position:absolute;left:17px;top:17px;color:var(--gold-dark);font:16px var(--serif)}.faq{margin-top:25px}.faq details{margin:10px 0;border:1px solid var(--line);background:#fff}.faq summary{padding:15px 17px;cursor:pointer;font-size:14px;font-weight:600}.faq details p{padding:0 17px 16px;margin:0;font-size:13px}.split-content{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.84fr);gap:45px;align-items:start}.contact-card{background:#fff;border:1px solid var(--line);padding:24px}.contact-card h2{margin:0 0 18px;font-size:19px}.contact-row{padding:12px 0;border-top:1px solid var(--line)}.contact-row dt{font-size:12px;color:var(--muted)}.contact-row dd{margin:2px 0 0;font-size:15px;font-weight:550}.contact-row a{color:var(--gold-dark)}.form-panel{background:#f2f1ed;padding:26px}.form-panel h2{font-size:20px;margin:0 0 8px}.form-note{margin:0 0 20px;color:#707178;font-size:12px;line-height:1.7}.field{margin:0 0 15px}.field label{display:block;font-size:13px;margin-bottom:6px;font-weight:550}.field input,.field textarea,.field select{width:100%;border:1px solid #d9d8d2;background:#fff;padding:11px 12px;color:var(--ink);border-radius:0}.field textarea{min-height:115px;resize:vertical}.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--gold-dark);outline:2px solid rgba(180,151,93,.25);outline-offset:0}.form-status{min-height:24px;margin:13px 0 0;font-size:13px;color:#43634c}.form-status.error{color:#9f352e}.about-prose{max-width:900px}.about-prose .lead{font-size:19px;color:var(--ink)}.material-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:17px 0 23px}.material-list span{padding:13px 15px;background:#f2f1ed;border:1px solid var(--line);font-size:14px}.news-empty{padding:32px;background:#fff;border:1px solid var(--line);border-left:3px solid var(--gold);color:#686a70;font-size:14px}.search-feedback{display:none;margin:-18px 0 24px;padding:12px 15px;background:#f4f1e9;color:#4e4b44;font-size:13px}.search-feedback.is-visible{display:block}.no-result{display:none;padding:28px;background:#f2f1ed;color:#696a70}.no-result.is-visible{display:block}.contact-strip{background:#f0efeb;padding:28px 0}.contact-strip-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}.contact-strip p{margin:0;font-size:15px}.contact-strip .button{min-height:42px}.site-footer{background:#171821;color:#fff;padding:50px 0 0}.footer-main{display:grid;grid-template-columns:1.3fr .8fr 1fr;gap:56px;padding-bottom:38px}.footer-brand .brand-name{color:#fff}.footer-brand p{max-width:360px;margin:17px 0 0;color:#bdbec3;font-size:13px;line-height:1.9}.footer-heading{margin:3px 0 15px;font-size:15px;font-weight:600;color:#fff}.footer-links{display:grid;gap:8px}.footer-links a,.footer-links span{color:#bdbec3;font-size:13px}.footer-links a:hover{color:#e0c78f}.footer-bottom{border-top:1px solid #373842;padding:15px 0 19px;color:#a9aab0;font-size:11px;display:flex;justify-content:space-between;gap:20px}.preview-note{color:#c8b27f}.page-body{min-height:38vh}.gold-rule{width:44px;height:2px;background:var(--gold);margin:19px 0 22px}.detail-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:23px}.detail-actions .button-outline{color:var(--gold-dark);border-color:#bca675}.detail-actions .button-outline:hover{color:#fff}.simple-list{display:grid;gap:10px;margin:17px 0 24px}.simple-list p{margin:0;padding:14px 17px;background:#fff;border:1px solid var(--line);font-size:14px}.keyline{border-top:1px solid var(--line);margin:31px 0}.site-map-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.site-map-group{padding:20px;background:#fff;border:1px solid var(--line)}.site-map-group h2{margin:0 0 12px;font-size:16px}.site-map-group a{display:block;padding:7px 0;color:#62646a;font-size:13px}.site-map-group a:hover{color:var(--gold-dark)}
@media(max-width:1080px){.header-row{grid-template-columns:230px 1fr 210px;gap:16px}.brand-name{font-size:15px}.main-nav{gap:15px}.main-nav a{font-size:13px}.search-form input{width:140px}.product-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:15px}.product-card .product-image{height:160px}}
@media(max-width:1100px){.header-row{height:72px;grid-template-columns:1fr auto auto;gap:12px}.menu-toggle{display:flex}.main-nav{display:none;position:absolute;left:0;right:0;top:72px;height:auto;padding:12px 24px 18px;background:#fff;border-top:1px solid var(--line);box-shadow:0 12px 18px rgba(0,0,0,.08);align-items:stretch;flex-direction:column;gap:0}.main-nav.is-open{display:flex}.main-nav a{padding:10px 0;border-bottom:1px solid #f0efeb}.main-nav a[aria-current=page]:after{display:none}.header-tools{grid-column:2;grid-row:1}.search-form input{width:145px}.menu-toggle{grid-column:3;grid-row:1}.about-split{gap:36px}.product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.content-grid{grid-template-columns:220px minmax(0,1fr);gap:28px}.footer-main{gap:30px}}
@media(max-width:680px){.container{width:min(var(--max),calc(100% - 36px))}.preview-ribbon{height:25px;line-height:25px;font-size:10px}.header-row{height:68px;grid-template-columns:minmax(0,1fr) auto auto;gap:8px}.brand{gap:8px}.brand-mark{width:32px;height:32px}.brand-name{font-size:13px;letter-spacing:0}.main-nav{top:68px;padding-inline:18px}.header-tools{display:none}.menu-toggle{width:40px;height:40px}.hero{min-height:auto}.hero-inner{padding-top:58px}.hero h1{font-size:27px;letter-spacing:0;white-space:nowrap}.hero-lede{font-size:14px;padding:0 10px}.hero-actions{margin-top:22px;gap:9px}.button{min-height:44px;padding:0 17px;font-size:13px}.hero-art{width:calc(100% + 16px);max-width:none;height:auto;min-height:225px;margin:16px -8px 0}.art-caption{font-size:10px;padding:0 12px;margin:0 0 18px}.section{padding:57px 0}.section-tight{padding:43px 0}.section-heading{margin-bottom:29px}.section-heading h2{font-size:25px}.section-heading .intro{font-size:13px}.advantages{padding:49px 0 51px}.advantages .section-heading{margin-bottom:28px}.adv-grid{grid-template-columns:repeat(2,1fr);gap:24px 12px}.adv-item{padding:0 7px}.adv-icon{width:62px;height:62px;margin-bottom:12px}.adv-icon svg{width:27px}.adv-item h3{font-size:14px}.adv-item p{font-size:12px}.about-split{grid-template-columns:1fr;gap:28px}.about-copy{padding:0}.about-copy h2,.split-copy h2{font-size:26px}.framed-art{padding:13px 13px 6px 6px}.framed-art img{height:260px}.product-grid{gap:12px}.product-card .product-image{height:138px;padding:11px}.product-card .product-copy{padding:13px 12px 15px}.product-card h3{font-size:14px}.product-card p{font-size:11px;min-height:0}.product-card .card-link{font-size:11px}.product-band-row,.contact-strip-inner{align-items:flex-start;flex-direction:column}.product-band{padding:32px 0}.industry-grid{grid-template-columns:1fr;gap:12px}.industry-card{min-height:0;padding:21px}.dark-strip{padding:46px 0}.dark-strip-inner{grid-template-columns:1fr;gap:20px}.dark-strip h2{font-size:24px}.news-list{grid-template-columns:1fr}.page-hero{padding:45px 0 39px}.breadcrumbs{font-size:11px;margin-bottom:17px}.page-hero h1{font-size:30px}.page-hero .lede{font-size:14px}.content-grid{grid-template-columns:1fr;gap:25px}.sidebar{position:static;display:grid;grid-template-columns:1fr 1fr;column-gap:14px}.sidebar h2{grid-column:1/-1}.sidebar a{font-size:12px}.article-content h2{font-size:21px}.article-content p{font-size:14px}.product-detail-layout,.split-content{grid-template-columns:1fr;gap:24px}.detail-gallery{position:static;grid-template-columns:repeat(2,minmax(0,1fr))}.detail-visual{position:static}.detail-visual img{height:260px}.detail-gallery .detail-visual{padding:8px}.detail-gallery .detail-visual img{height:150px}.subtype-grid{grid-template-columns:1fr}.detail-facts{grid-template-columns:112px minmax(0,1fr)}.detail-facts div{font-size:12px;overflow-wrap:anywhere}.material-list{grid-template-columns:1fr}.site-map-grid{grid-template-columns:1fr}.form-panel{padding:20px}.footer-main{grid-template-columns:1fr 1fr;gap:28px 22px}.footer-brand{grid-column:1/-1}.footer-bottom{flex-direction:column;gap:5px}.contact-strip p{font-size:14px}}
@media(max-width:370px){.brand-name{font-size:12px}.hero h1{font-size:25px;white-space:nowrap}.hero-actions{flex-direction:column;align-items:center}.hero-actions .button{width:min(240px,100%)}.product-card .product-image{height:120px}.footer-main{grid-template-columns:1fr}.footer-brand{grid-column:auto}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* Extend each single-destination card link over its full surface. */
.product-card,.industry-card,.news-item{position:relative}
.product-card h3 a::after,.industry-card a::after,.news-item a::after{content:"";position:absolute;inset:0;z-index:1;cursor:pointer}
.product-card:focus-within,.industry-card:focus-within,.news-item:focus-within{outline:3px solid #b4975d;outline-offset:3px}

.contact-qr{display:flex;align-items:center;gap:14px;width:fit-content}.qr-image{position:relative;display:block;width:140px;aspect-ratio:1;overflow:hidden;background:#fff;flex:none}.qr-image img{position:absolute;max-width:none;width:143.027%;height:auto;left:-21.513%;top:-62.018%}.qr-copy{display:flex;flex-direction:column;font-size:12px;line-height:1.6}.qr-copy strong{font-size:16px}.qr-header{flex-direction:column;gap:2px}.qr-header .qr-image{width:68px}.qr-header .qr-copy strong{font-size:11px}.qr-header .qr-copy>span{display:none}.header-row{height:104px;grid-template-columns:270px 1fr 250px;gap:20px}.header-tools .search-form input{width:112px}.qr-footer{margin-top:24px}.qr-contact .qr-image{width:210px}.wechat-contact{margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}.wechat-contact h3{margin:0}.wechat-contact p{font-size:14px}.qr-contact .qr-copy strong{font-size:18px}
@media(max-width:1100px){.header-row{grid-template-columns:1fr auto auto}.header-tools .search-form{display:none}}
@media(max-width:1100px){.main-nav{top:104px}}
@media(max-width:700px){.main-nav{top:100px}.header-row{height:100px;gap:10px}.header-tools{display:flex}.qr-header .qr-image{width:60px}.brand-name{white-space:normal;font-size:14px;line-height:1.4}.brand-mark{width:30px;height:30px}.qr-contact{flex-direction:column;align-items:flex-start}.qr-contact .qr-image{width:200px}}