:root{--paper:#f7f3eb;--ink:#29241e;--muted:#776d60;--line:#d9cfc1;--red:#9e3f2c;--serif:'Noto Serif SC','Songti SC','SimSun',serif;--sans:'Microsoft YaHei','PingFang SC',system-ui,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.8 var(--sans);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}a:hover{color:var(--red)}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--red);outline-offset:5px}.skip{position:fixed;top:-80px;background:var(--paper);padding:10px;z-index:50}.skip:focus{top:5px}.wrap{max-width:1320px;margin:auto;padding-left:64px;padding-right:64px}.header{height:100px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:25px}.wordmark{display:flex;gap:17px;align-items:center;white-space:nowrap;font-family:var(--serif)}.wordmark strong{font-size:34px;letter-spacing:4px;font-weight:500}.wordmark span{font-size:18px;color:var(--red);border-left:1px solid var(--red);padding-left:17px}nav{display:flex;gap:34px;align-items:center;font-size:14px}nav a:last-child{border-bottom:1px solid var(--red);padding-bottom:3px}.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:50px;align-items:center;padding-top:65px;padding-bottom:72px}.hero h1{font:500 clamp(40px,4.5vw,61px)/1.42 var(--serif);margin:0 0 26px;letter-spacing:1px}.hero h1 em{font-style:normal;color:var(--red)}.hero p{font-size:16px;color:var(--muted);line-height:2;margin:0 0 32px}.hero-photo{margin:0;align-self:stretch;display:flex;flex-direction:column;justify-content:center}.hero-photo img{width:100%;height:auto;aspect-ratio:1.2;object-fit:contain;background:#fff}.hero-photo figcaption{font-size:11px;color:var(--muted);text-align:right;margin-top:10px}.actions{display:flex;gap:16px;flex-wrap:wrap}.btn{display:inline-flex;gap:20px;align-items:center;justify-content:center;border:1px solid var(--ink);border-radius:2px;padding:11px 25px;font-size:14px;min-height:49px;transition:background .2s,color .2s}.btn.primary{background:var(--red);border-color:var(--red);color:#fff9f0}.btn:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}svg{width:20px;height:20px}.products-section{padding-top:56px;padding-bottom:75px;border-top:1px solid var(--line)}.section-head{display:flex;justify-content:space-between;gap:45px;align-items:flex-start;margin-bottom:40px}h2{font:500 38px/1.45 var(--serif);letter-spacing:1px;margin:0}.section-head p{font-size:14px;color:var(--muted);margin:8px 0 0}.short-line{display:block;width:36px;border-top:2px solid var(--red);margin-top:20px}.products-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:50px 30px}.product-image{display:block;background:#fff;overflow:hidden}.product-image img{display:block;width:100%;height:auto;aspect-ratio:1.25;object-fit:contain;transition:transform .35s}.product-image:hover img{transform:scale(1.035)}.product-meta{display:flex;justify-content:space-between;font-size:11px;color:var(--muted);margin-top:17px;gap:8px}.product h3{font:500 27px/1.5 var(--serif);margin:8px 0 0}.model{font-size:12px;letter-spacing:1px;color:var(--muted);margin:2px 0 13px}.price{font-size:13px;margin:10px 0 17px}.price strong{font-family:Georgia,serif;font-size:27px;font-weight:400;color:var(--red);padding:0 3px}.price small{display:block;font-size:11px;color:var(--muted);margin-top:2px}.detail-link{font-size:13px;display:flex;align-items:center;justify-content:space-between;padding-top:12px;border-top:1px solid var(--line)}.detail-link svg{width:18px}.price-note{border-top:1px solid var(--line);margin-top:44px;padding-top:24px;display:grid;grid-template-columns:120px 1fr;gap:20px;font-size:12px;color:var(--muted)}.price-note strong{font-weight:500;color:var(--ink)}.price-note p{margin:0;max-width:850px}.questions{background:#eee7dc;border-top:1px solid var(--line);padding:65px 0}.question-layout{display:grid;grid-template-columns:1fr 1.5fr;gap:70px}.question-layout>div>p{font-size:14px;color:var(--muted);margin-top:23px}.faq details{border-bottom:1px solid #cfc2b1;padding:18px 0}.faq details:first-child{padding-top:0}.faq summary{font-size:15px;cursor:pointer;line-height:1.8}.faq details p{font-size:13px;color:#655a4b;line-height:2;max-width:620px;margin-bottom:3px}.contact{background:#282019;color:var(--paper);padding:60px 0 40px}.contact h2{font-size:40px}.contact p{font-size:14px;line-height:2;color:#c8bbaa;margin:22px 0}.contact-grid{display:flex;gap:60px;flex-wrap:wrap;margin-top:30px}.contact-grid>div{min-width:0}.label{display:block;color:#b9ab98;font-size:11px;letter-spacing:1px;margin-bottom:5px}.contact-grid a,.contact-grid>div>span:not(.label){font-size:17px;overflow-wrap:anywhere}.contact button{background:transparent;border:1px solid #93826b;border-radius:2px;color:var(--paper);font-size:12px;padding:5px 12px;margin-left:16px}.contact button:hover{background:#514030}.contact .copy-status{font-size:12px;min-height:24px;margin:15px 0 0;overflow-wrap:anywhere}.contact .contact-note{font-size:11px;margin:7px 0 0;color:#b9ab98}.footer{background:#282019;color:#c8bbaa;border-top:1px solid #675645;font-size:12px}.footer>.wrap{display:flex;gap:30px;align-items:center;padding-top:24px;padding-bottom:24px}.footer a:first-child{font:23px var(--serif);color:var(--paper)}.footer a:last-child{margin-left:auto}.mobile-contact{display:none}.breadcrumb{display:flex;gap:13px;flex-wrap:wrap;font-size:12px;color:var(--muted);padding-top:30px}.product-detail{display:grid;grid-template-columns:1.15fr 1fr;gap:65px;padding:38px 0 55px;align-items:center}.product-detail figure{margin:0}.product-detail figure img{width:100%;height:auto;aspect-ratio:1;object-fit:contain;background:#fff;display:block}.product-detail figcaption{font-size:11px;color:var(--muted);padding-top:10px}.category{font-size:12px;color:var(--muted);letter-spacing:2px}.product-detail h1{font:500 48px/1.4 var(--serif);margin:10px 0 4px}.product-detail .model{font-size:14px}.product-detail .intro{font-size:14px;color:var(--muted);margin:25px 0}.product-detail .price strong{font-size:36px}.product-detail .price{margin:22px 0;font-size:14px}.wechat-link{font-size:12px;display:block;margin-top:17px;text-decoration:underline;text-underline-offset:4px}.spec-section{padding:40px 0 65px;border-top:1px solid var(--line)}.spec-section h2{font-size:30px;margin-bottom:25px}dl{max-width:850px;margin:0 0 30px}dl>div{display:grid;grid-template-columns:150px 1fr;border-bottom:1px solid var(--line);padding:16px 0;font-size:14px}dt{color:var(--muted)}dd{margin:0}.source-note{font-size:12px;color:var(--muted);max-width:850px}.back-link{font-size:13px;text-decoration:underline;text-underline-offset:5px;display:inline-block;margin-top:18px}@media(min-width:1600px){.hero{padding-top:80px;padding-bottom:90px;gap:70px}}@media(max-width:1000px){.wrap{padding-left:35px;padding-right:35px}.hero{gap:35px}.hero h1{font-size:43px}.hero p{font-size:14px}.products-grid{gap:40px 22px}.product-meta{font-size:10px}.section-head{gap:30px}h2{font-size:32px}.question-layout{gap:40px}.contact-grid{gap:35px}.product-detail{gap:35px}}@media(max-width:700px){html{scroll-padding-top:15px}.wrap{padding-left:22px;padding-right:22px}.header{height:auto;min-height:83px;gap:10px;flex-wrap:wrap;padding-top:13px;padding-bottom:13px}.wordmark{gap:11px}.wordmark strong{font-size:28px}.wordmark span{font-size:16px;padding-left:12px}nav{width:100%;gap:22px;font-size:12px;justify-content:space-between;margin-top:5px}.hero{grid-template-columns:1fr;gap:30px;padding-top:38px;padding-bottom:38px}.hero h1{font-size:clamp(32px,8.9vw,48px);line-height:1.45;margin-bottom:20px;letter-spacing:0}.hero p{font-size:14px;margin-bottom:24px}.hero-photo img{aspect-ratio:1.45}.hero-photo figcaption{font-size:10px}.btn{padding:10px 21px;min-height:46px;font-size:13px;gap:15px}.products-section{padding-top:38px;padding-bottom:45px}.section-head{display:block;margin-bottom:28px}h2{font-size:29px}.section-head p{margin-top:22px;font-size:13px}.products-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:31px 15px}.product-image img{aspect-ratio:1;object-fit:contain}.product-meta{display:block;font-size:10px;line-height:1.8;margin-top:12px}.product-meta span{display:block}.product h3{font-size:23px;margin-top:7px}.model{font-size:10px;letter-spacing:0;margin-bottom:9px}.price{font-size:11px;margin-top:8px;margin-bottom:11px}.price strong{font-size:23px}.price small{font-size:10px}.detail-link{font-size:11px;padding-top:10px}.detail-link svg{width:15px}.price-note{display:block;margin-top:30px;font-size:11px;padding-top:20px}.price-note p{margin-top:9px}.questions{padding:40px 0}.question-layout{grid-template-columns:1fr;gap:25px}.question-layout h2 br{display:none}.question-layout>div>p{font-size:13px;margin-top:17px}.question-layout>div>p br{display:none}.faq summary{font-size:14px}.faq details{padding:17px 0}.faq details p{font-size:12px}.contact{padding:40px 0 28px}.contact h2{font-size:30px}.contact p{font-size:13px}.contact-grid{display:block;margin-top:24px}.contact-grid>div+div{margin-top:25px}.contact-grid a,.contact-grid>div>span:not(.label){font-size:15px}.contact button{margin-left:12px;font-size:11px;padding:5px 8px}.contact-grid>div:first-child button{display:block;margin:10px 0 0}.contact .contact-note{font-size:10px}.footer>.wrap{gap:15px;flex-wrap:wrap;padding-bottom:95px;font-size:10px}.footer a:first-child{font-size:20px}.footer a:last-child{margin-left:0}.mobile-contact{display:flex;align-items:center;justify-content:space-between;position:fixed;z-index:10;bottom:0;left:0;right:0;padding:10px 22px;padding-bottom:max(10px,env(safe-area-inset-bottom));background:var(--paper);border-top:1px solid var(--line);gap:15px}.mobile-contact span{font-size:11px;color:var(--muted)}.mobile-contact a{background:var(--red);color:var(--paper);font-size:13px;padding:9px 23px;border-radius:2px}.breadcrumb{font-size:11px;padding-top:22px;gap:9px}.product-detail{display:flex;flex-direction:column;gap:28px;padding:25px 0 40px;align-items:stretch}.product-detail figure img{aspect-ratio:1.2}.product-detail h1{font-size:38px}.product-detail .intro{margin:18px 0;font-size:13px}.product-detail .price strong{font-size:32px}.product-detail .price{margin:20px 0}.spec-section{padding-top:30px;padding-bottom:40px}.spec-section h2{font-size:27px}dl>div{grid-template-columns:100px 1fr;font-size:13px;padding:13px 0}.source-note{font-size:11px}}@media(max-width:350px){.wrap{padding-left:16px;padding-right:16px}.products-grid{grid-template-columns:1fr}.product-meta{display:flex}.product h3{font-size:26px}.price strong{font-size:27px}.hero h1{font-size:30px}.contact-grid a{font-size:13px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
.wordmark small{display:block;font:10px/1.4 var(--sans);letter-spacing:1px;color:var(--muted);margin-top:4px}.catalog-tools{display:flex;align-items:end;gap:18px;flex-wrap:wrap;margin:30px 0 12px}.catalog-tools label{display:flex;flex-direction:column;gap:6px;font-size:12px;color:var(--muted)}.catalog-tools input,.catalog-tools select{font:14px var(--sans);min-height:45px;border:1px solid var(--line);padding:10px 13px;background:#fffdf8;color:var(--ink);border-radius:2px}.catalog-tools input{width:280px}.catalog-tools button{padding:10px 16px;min-height:45px;border:1px solid var(--line);background:transparent;color:var(--muted);font-size:12px}#catalog-count,#catalog-empty{font-size:12px;color:var(--muted);margin:16px 0 28px}.product[hidden],[hidden]{display:none!important}.site-kicker{color:var(--red)!important;font-size:12px!important;letter-spacing:2px}.product .model{min-height:2.8em;overflow-wrap:anywhere}.variant{margin-bottom:25px}.product-gallery{padding:0 0 55px}.product-gallery h2{font-size:28px;margin-bottom:25px}.product-gallery>div{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.product-gallery figure{margin:0}.product-gallery img{width:100%;height:auto;aspect-ratio:1.2;object-fit:contain;background:white}.product-gallery figcaption{font-size:11px;color:var(--muted);margin-top:8px}.tail-photo{overflow:hidden}.tail-photo img{object-fit:contain;background:white}.hero-photo.tail-photo{overflow:visible}@media(max-width:700px){.catalog-tools{gap:12px}.catalog-tools label:first-child{width:100%}.catalog-tools input{width:100%}.catalog-tools label:not(:first-child){flex:1;min-width:130px}.catalog-tools select{width:100%;font-size:12px}.catalog-tools button{width:100%}.wordmark small{font-size:9px}.product-gallery>div{grid-template-columns:1fr}.product .model{min-height:3em}}

/* Unified square product frames across desktop and mobile. */
.product-image img,.product-detail figure img,.product-gallery img,.hero-photo img{aspect-ratio:1 / 1;object-fit:contain}

.product-image img,.product-detail figure img,.hero-photo img{aspect-ratio:1 / 1;object-fit:cover;object-position:left center}

/* Square layout frame, original photo aspect ratio: no crop or stretch. */
.photo-frame{display:grid;place-items:center;width:100%;aspect-ratio:1 / 1;background:#fff;overflow:hidden;min-width:0}
.photo-frame>img{display:block;width:auto!important;height:auto!important;max-width:100%;max-height:100%;aspect-ratio:auto!important;object-fit:contain!important;object-position:center!important;transform:none!important}
.product-gallery img{aspect-ratio:auto;object-fit:contain;height:auto}

/* Final user preference: natural aspect ratio, no letterboxing or crop. */
.photo-frame{display:block;aspect-ratio:auto;background:transparent;overflow:visible}
.photo-frame>img{width:100%!important;height:auto!important;max-width:100%;max-height:none;aspect-ratio:auto!important;object-fit:contain!important;transform:none!important}
.products-grid{align-items:start}

.wordmark{display:flex;flex-direction:column;align-items:flex-start;gap:5px}.wordmark .brand-logo{display:block;width:240px;max-width:100%;height:auto;aspect-ratio:auto;object-fit:contain}.wordmark .site-label{font:10px/1.4 var(--sans);letter-spacing:2px;color:var(--muted);margin:0}.header .wordmark{flex-shrink:0}@media(max-width:700px){.wordmark .brand-logo{width:200px}.wordmark .site-label{font-size:9px}}

.factory-section{padding-top:55px;padding-bottom:60px;border-top:1px solid var(--line)}.factory-section figure{margin:0}.factory-section img{display:block;width:100%;height:auto;aspect-ratio:auto;object-fit:contain}.factory-section figcaption{font-size:12px;color:var(--muted);margin-top:12px}@media(max-width:700px){.factory-section{padding-top:35px;padding-bottom:35px}nav{gap:12px}}

/* Reserve each photo’s actual ratio to keep anchor navigation stable during lazy loading. */
.photo-frame{aspect-ratio:var(--photo-ratio,auto)}.factory-section img{aspect-ratio:1280 / 870}