:root{color-scheme:light;--ink:#1e292a;--muted:#697677;--paper:#fff;--soft:#f3f5f4;--line:#dce2df;--accent:#087a81;--focus:#008f99;--page-width:1320px;font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",sans-serif;font-synthesis:none;letter-spacing:0}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:24px}
body{margin:0;background:var(--paper);color:var(--ink);font-size:15px;line-height:1.8;-webkit-font-smoothing:antialiased}
body.modal-open{overflow:hidden}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
button,a{-webkit-tap-highlight-color:transparent}
button:focus-visible,a:focus-visible{outline:3px solid var(--focus);outline-offset:4px}
button{border:0}
button:disabled{cursor:default;opacity:.3}
img{display:block;max-width:100%;height:auto}
svg.icon{display:block;width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex:none}
.icon-definitions{position:absolute;width:0;height:0;overflow:hidden}
.content-width{width:min(var(--page-width),calc(100% - 96px));margin-inline:auto}
.skip-link{position:fixed;left:16px;top:8px;z-index:100;background:var(--ink);color:white;padding:8px 14px;transform:translateY(-160%)}
.skip-link:focus{transform:translateY(0)}
.site-header{height:76px;padding-inline:48px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:#fff}
.brand{display:flex;align-items:center;gap:12px;font-size:15px;font-weight:700;white-space:nowrap}
.brand-mark{width:22px;height:17px;border-top:3px solid var(--accent);border-right:3px solid var(--accent);border-radius:0 5px 0 0;position:relative}
.brand-mark::after{content:"";position:absolute;left:0;bottom:0;width:15px;border-bottom:2px solid var(--ink)}
.site-header nav{display:flex;gap:32px;font-size:13px;color:#526062}
.site-header nav a{padding-block:8px}
.site-header nav a:hover{color:var(--accent)}
.hero{background:var(--soft)}
.hero-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;padding-top:24px;padding-bottom:14px}
.eyebrow{margin:0 0 10px;font-size:11px;line-height:1.5;color:var(--accent);font-weight:600;letter-spacing:0}
h1,h2,p{margin-top:0}
h1{margin:0;font-size:32px;line-height:1.35;font-weight:600;letter-spacing:0}
.hero .eyebrow{margin-bottom:5px}
.hero-subtitle{margin:0 0 3px;font-size:13px;color:var(--muted)}
.hero-media{position:relative;width:100%;height:calc(100vh - 360px);height:calc(100svh - 360px);max-height:720px;min-height:300px;background:#373c41;transition:background-color .25s}
.hero[data-mode="night"] .hero-media{background:#000}
.hero-media>img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.hero-controls{position:absolute;z-index:1;right:48px;top:18px}
.mode-switch{display:flex;padding:3px;border:1px solid #d9dfdc;background:rgba(255,255,255,.94);border-radius:5px;box-shadow:0 2px 12px #0b282806}
.mode-switch button{display:flex;align-items:center;gap:7px;height:35px;padding:0 13px;background:transparent;color:#536364;font-size:12px;border-radius:3px}
.mode-switch button[aria-pressed="true"]{background:var(--ink);color:#fff}
.mode-switch svg.icon{width:16px;height:16px}
.hero-caption{position:absolute;bottom:19px;left:48px;color:#d3dddd;font-size:11px}
.hero[data-mode="night"] .hero-caption{color:#c2d0d0}
.icon-button{display:inline-flex;width:42px;height:42px;align-items:center;justify-content:center;flex:none;border:1px solid var(--line);border-radius:4px;background:rgba(255,255,255,.95);color:var(--ink)}
.icon-button:hover{background:#e9f3f2;border-color:#b7d5d3}
.hero-open{position:absolute;right:48px;bottom:14px}
.section-space{padding-block:80px}
h2{margin-bottom:0;font-size:27px;line-height:1.45;font-weight:500;letter-spacing:0}
.overview{display:grid;grid-template-columns:1fr 1.35fr;column-gap:88px;row-gap:40px}
.overview-copy p{margin-bottom:14px;color:#576465;max-width:650px;font-size:15px;line-height:1.95}
.overview-copy p:last-child{margin-bottom:0}
.product-points{grid-column:1/-1;display:grid;grid-template-columns:repeat(3,1fr);padding-top:28px;border-top:1px solid var(--line);gap:32px}
.product-points span{display:flex;align-items:baseline;gap:18px;color:var(--muted);font-size:12px}
.product-points strong{font-size:18px;font-weight:500;color:var(--ink)}
.gallery-section{background:var(--soft)}
.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.gallery-filters{display:flex;gap:6px;flex-wrap:wrap;padding-bottom:2px}
.gallery-filters button{min-width:56px;padding:6px 12px;background:transparent;border-bottom:2px solid transparent;color:#657170;font-size:13px;border-radius:0;white-space:nowrap}
.gallery-filters button[aria-pressed="true"]{border-color:var(--accent);color:var(--accent);font-weight:600}
.gallery-filters button:hover{color:var(--accent)}
.gallery-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:34px 24px}
.gallery-item{display:block;min-width:0}
.gallery-item[hidden]{display:none}
.gallery-image{position:relative;display:block;aspect-ratio:16/10;overflow:hidden;background:#e7ebea;border-radius:4px}
.gallery-image img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.gallery-item[data-type="detail"] .gallery-image img{object-fit:contain;background:#e7ebea}
.gallery-item:hover .gallery-image img{transform:scale(1.025)}
.image-open{position:absolute;right:12px;bottom:12px;width:32px;height:32px;border:1px solid #d9dfdc;display:flex;align-items:center;justify-content:center;border-radius:3px;background:rgba(255,255,255,.94);color:var(--ink);transition:background-color .2s}
.image-open .icon{width:17px;height:17px}
.gallery-caption{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding-top:12px;font-size:13px}
.gallery-caption>span:last-child{font-size:11px;color:var(--muted);white-space:nowrap}
.gallery-count{margin:30px 0 0;color:#788480;font-size:11px;text-align:right}
.section-note{font-size:12px;color:var(--muted);padding-bottom:3px;white-space:nowrap}
.dimensions-image{position:relative;display:block;background:#f5f6f5}
.dimensions-image>img{width:100%;height:auto;min-height:180px;object-fit:contain}
.display-section{display:grid;grid-template-columns:1fr 1.6fr;gap:80px;align-items:center;padding-top:20px}
.display-copy h2{margin-bottom:22px}
.display-copy p:not(.eyebrow){color:#576465;max-width:350px;font-size:14px}
.display-copy .display-note{margin-top:24px;font-size:12px!important;color:#7b8584!important}
.display-image{display:block;position:relative;overflow:hidden;background:var(--soft);aspect-ratio:4/3}
.display-image>img{width:100%;height:100%;object-fit:contain}
.site-footer{display:flex;justify-content:space-between;gap:20px;padding-block:30px;border-top:1px solid var(--line);font-size:11px;color:var(--muted)}
.site-footer>span:first-child{font-weight:600;color:var(--ink)}
.site-footer a:hover{color:var(--accent)}
.site-footer a span{padding-left:10px}
.lightbox{position:fixed;inset:0;width:100%;height:100%;max-width:none;max-height:none;margin:0;padding:0;border:0;background:#101718;color:#f4f7f6;overflow:hidden}
.lightbox::backdrop{background:#101718}
.lightbox[open]{display:flex;flex-direction:column}
.lightbox-toolbar{height:82px;flex:none;padding:15px 28px;display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid #ffffff15}
.lightbox-toolbar h2{font-size:15px;font-weight:400;line-height:1.5}
.lightbox-toolbar span{font-size:11px;color:#92a5a6}
.lightbox-actions{display:flex;gap:10px}
.lightbox .icon-button{color:white;background:#202b2d;border-color:#465354}
.lightbox .icon-button:hover{background:#334244}
.lightbox-stage{position:relative;min-height:0;flex:1;padding:22px 86px 30px;display:flex;align-items:center;justify-content:center;touch-action:pan-y}
.lightbox-stage>img{display:block;max-height:100%;max-width:100%;width:auto;height:auto;object-fit:contain;user-select:none;-webkit-user-drag:none}
.lightbox-prev,.lightbox-next{position:absolute;top:calc(50% - 21px);z-index:2}
.lightbox-prev{left:24px}
.lightbox-next{right:24px}
.lightbox-stage.single .lightbox-prev,.lightbox-stage.single .lightbox-next{display:none}
@media(min-width:1600px){.hero-media{max-height:calc(100svh - 360px)}.hero-heading{padding-top:30px;padding-bottom:20px}}
@media(max-width:1000px){.content-width{width:calc(100% - 56px)}.site-header{padding-inline:28px}.site-header nav{gap:22px}.hero-controls,.hero-open{right:28px}.hero-caption{left:28px}.overview{column-gap:42px}.section-space{padding-block:64px}.product-points{gap:20px}.product-points span{flex-direction:column;gap:4px}.display-section{gap:40px;padding-top:12px}}
@media(max-width:640px){html{scroll-padding-top:16px}.content-width{width:calc(100% - 36px)}.site-header{height:64px;padding-inline:18px}.brand{gap:9px;font-size:13px}.brand-mark{width:19px;height:16px}.site-header nav{gap:14px;font-size:11px}.site-header nav a:first-child{display:none}.hero-heading{display:block;padding-top:23px;padding-bottom:12px}.hero .eyebrow{font-size:9px;margin-bottom:8px}h1{font-size:26px}.hero-subtitle{font-size:11px;margin-top:10px}.hero-media{aspect-ratio:4/3;min-height:300px;max-height:calc(100svh - 280px)}.hero-controls{top:6px;right:18px}.mode-switch button{height:30px;padding-inline:10px;font-size:11px;gap:5px}.mode-switch svg.icon{width:14px;height:14px}.hero-caption{left:18px;bottom:16px;font-size:10px}.hero-open{right:18px;bottom:11px;width:34px;height:34px}.section-space{padding-block:48px}h2{font-size:23px}.eyebrow{font-size:10px;margin-bottom:8px}.overview{display:block}.overview-copy{margin-top:24px}.overview-copy p{font-size:13px;line-height:1.95}.product-points{margin-top:30px;padding-top:23px;gap:13px}.product-points strong{font-size:15px}.product-points span{font-size:10px;gap:6px}.section-heading{display:block;margin-bottom:24px}.gallery-filters{margin-top:20px;gap:12px}.gallery-filters button{min-width:42px;padding:5px 6px;font-size:12px}.gallery-grid{gap:25px;grid-template-columns:1fr}.gallery-image{aspect-ratio:16/10}.gallery-caption{font-size:12px;padding-top:10px}.gallery-caption>span:last-child{font-size:10px}.gallery-count{margin-top:22px}.dimensions-section .section-heading{display:flex;align-items:end}.section-note{font-size:11px}.dimensions-image{margin-inline:-8px}.dimensions-image .image-open{right:8px;bottom:8px}.display-section{display:flex;flex-direction:column;align-items:stretch;gap:24px;padding-top:4px}.display-copy h2{margin-bottom:16px}.display-copy p:not(.eyebrow){font-size:13px;max-width:none;margin-bottom:12px}.display-copy .display-note{margin-top:12px;font-size:11px!important}.site-footer{display:grid;grid-template-columns:1fr auto;font-size:10px;padding-block:24px;gap:8px}.site-footer>span:nth-child(2){grid-column:1;grid-row:2}.site-footer>a{grid-column:2;grid-row:1/3;align-self:center}.lightbox-toolbar{height:76px;padding:12px 16px;gap:12px}.lightbox-toolbar h2{font-size:12px;max-width:220px}.lightbox-toolbar span{font-size:10px}.lightbox-actions{gap:8px}.lightbox-actions .icon-button{width:36px;height:36px}.lightbox-stage{padding:12px 8px 78px}.lightbox-prev,.lightbox-next{top:auto;bottom:20px;width:40px;height:40px}.lightbox-prev{left:calc(50% - 54px)}.lightbox-next{right:calc(50% - 54px)}}
@media(max-width:640px){.hero-media{aspect-ratio:auto;height:270px;min-height:240px;max-height:calc(100vh - 280px);max-height:calc(100svh - 280px)}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important}}
@media(max-width:640px),(min-aspect-ratio:9/5){.hero-media>img{object-fit:contain}}