/* Catalog revision: compact navigation, real configurations and inspectable material.
   Product cards use one square canvas at every breakpoint. Keep photo scale in
   the source canvas rather than enlarging or cropping individual variants. */
[hidden]{display:none!important}
.header-inner{height:82px}.brand img{width:190px;height:42px}.main-nav{margin-left:26px;gap:28px}.header-actions{gap:23px}
.catalog-shell{max-width:1600px;margin:auto;padding:26px 48px 46px;display:grid;grid-template-columns:220px minmax(0,1fr);gap:26px;align-items:start}
.category-sidebar{background:#f2f5f4;position:sticky;top:20px;min-width:0;padding:0 18px 15px}
.category-sidebar h2{font-size:22px;letter-spacing:-.025em;padding:24px 5px 19px}
.category-sidebar nav{display:flex;flex-direction:column}.category-sidebar a{display:flex;align-items:center;justify-content:space-between;gap:8px;min-height:44px;padding:11px 7px;border-bottom:1px solid #dee5e1;font-size:16px;line-height:1.35;font-weight:500}
.category-sidebar a:hover,.category-sidebar a:focus-visible{color:#254d42;background:#e4ece7}.category-sidebar a[aria-current],.category-sidebar .category-all{background:#254d42;color:white;margin-inline:-18px;padding-inline:25px;font-weight:650;border:0}.category-sidebar a svg{width:14px;height:14px;flex:none}.category-sidebar .arrow{width:18px}
.category-toggle{display:none}.catalog-main{min-width:0}.catalog-banner{background:#f2f5f4;display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.8fr);min-height:240px;overflow:hidden}
.catalog-banner-copy{padding:30px 32px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.catalog-banner h1{font-size:40px;line-height:1.18;letter-spacing:-.045em;font-weight:800;margin:0;max-width:530px}.catalog-banner p{font-size:17px;line-height:1.5;margin-top:13px}.catalog-banner .button{margin-top:20px;min-height:44px;font-size:14px;padding:10px 18px;gap:15px}
.catalog-banner img{width:100%;height:100%;max-height:278px;object-fit:contain}.catalog-banner figure{margin:0;background:#e9edeb;min-width:0}.catalog-heading{display:flex;flex-wrap:wrap;align-items:baseline;gap:10px 18px;margin:27px 0 15px}.catalog-heading h2{font-size:28px;letter-spacing:-.035em}.catalog-heading p{font-size:15px}.catalog-filters{display:flex;gap:5px;border-bottom:1px solid #d5ddd8;margin:0 0 19px;flex-wrap:wrap}.catalog-filters button{font-size:14px;min-height:41px;padding:8px 16px;border:0;border-bottom:3px solid transparent;background:transparent;color:#66736c}.catalog-filters button[aria-pressed=true]{border-bottom-color:#254d42;font-weight:700;color:#254d42}.catalog-filters button:hover{background:#f2f5f4}
.product-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px 18px}.product-card{min-width:0}.product-card .image-zoom{position:relative;display:block;width:100%;height:auto;aspect-ratio:1;padding:0;border:0;background:#f2f5f4;cursor:zoom-in;overflow:hidden}.product-card .image-zoom img{position:absolute;inset:0;height:100%;width:100%;object-fit:contain;object-position:center}.product-card h3{font-size:20px;line-height:1.3;letter-spacing:-.035em;margin:14px 0 8px}.product-card p{font-size:14px;line-height:1.55}.product-card .text-link{font-size:14px;gap:8px;margin-top:12px;color:#254d42}.product-card .arrow{width:20px;height:15px}.product-card-actions{display:flex;align-items:center;flex-wrap:wrap;gap:8px 20px}
.catalog-count{font-size:13px;color:#626d73}.catalog-footer{margin-top:28px;padding-top:20px;border-top:1px solid #d5ddd8;font-size:15px}.catalog-footer a{color:#254d42;text-decoration:underline;text-underline-offset:4px}
.directory-heading{padding:7px 0 29px}.directory-heading h1{font-size:39px;line-height:1.25;letter-spacing:-.035em}.directory-heading p{font-size:18px;line-height:1.6;margin-top:12px}.category-row{border:1px solid #d9e1dc;padding:23px;margin-bottom:18px;scroll-margin-top:24px}.category-row:target{border-color:#254d42;box-shadow:inset 3px 0 #254d42}.category-row-head{display:flex;justify-content:space-between;align-items:flex-start;gap:24px}.category-row h2{font-size:26px;letter-spacing:-.025em;line-height:1.25}.category-row p{margin-top:10px;font-size:16px;line-height:1.6}.category-row .text-link{font-size:14px;white-space:nowrap;gap:10px;color:#254d42}.category-row .arrow{width:20px}.category-requirements{list-style:none;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;padding:0;margin:19px 0 0}.category-requirements li{background:#f2f5f4;padding:15px 13px;font-size:14px;line-height:1.6;color:#3f5149}.category-row-actions{display:flex;gap:25px;margin-top:15px;align-items:center;flex-wrap:wrap}
.material-section{padding-block:35px;border-top:1px solid #d8e0db}.material-heading{display:flex;justify-content:space-between;gap:35px;align-items:baseline;margin-bottom:23px}.material-heading h2{font-size:35px;line-height:1.2}.material-heading p{font-size:15px;max-width:430px}.material-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px 22px}.material-figure{min-width:0;margin:0}.material-figure .image-zoom{width:100%;height:268px;border:0;padding:0;background:#f2f5f4;cursor:zoom-in;display:block}.material-figure img{width:100%;height:100%;object-fit:contain}.material-figure figcaption{margin-top:12px;font-size:15px;line-height:1.65;color:#4f5e57}.material-label{display:block;color:#152524;font-weight:650;margin-bottom:4px}.material-note{font-size:13px;color:#67736c}.material-section .text-link{font-size:15px;margin-top:24px;color:#254d42}
.photo-dialog{padding:0;width:min(1200px,95vw);max-width:95vw;max-height:94vh;border:0;background:white;box-shadow:0 20px 100px #0005}.photo-dialog::backdrop{background:#0c211cd9}.photo-dialog-inner{padding:54px 20px 20px}.photo-dialog img{max-height:74vh;max-width:100%;width:auto;height:auto;object-fit:contain;margin:auto}.photo-dialog p{padding-top:14px;color:#21382f;font-size:15px;line-height:1.6}.photo-close{position:absolute;right:12px;top:10px;border:1px solid #cfdbd4;background:white;min-width:70px;min-height:36px;padding:5px 13px;font-size:14px}
.gallery-main{cursor:zoom-in}.catalog-guide{padding-block:38px;border-top:1px solid #d8e0db}.catalog-guide h2{font-size:37px}.catalog-guide .steps li{padding-block:14px}.inquiry-inner{padding-block:52px}.inquiry h2{font-size:51px}.contact-intro{padding-block:40px}.product-top-inner{padding-top:28px;padding-bottom:34px}.specs{padding-block:38px}.buyer-notes{padding-block:35px}.faq{padding-bottom:48px}.site-footer{padding-block:32px}
html[lang=en] .category-sidebar a{font-size:13px;min-height:46px;line-height:1.4}html[lang=en] .catalog-banner h1{font-size:35px}html[lang=en] .product-card h3{font-size:19px;line-height:1.3}html[lang=zh-CN] .catalog-banner h1{font-size:39px;line-height:1.35}

@media(max-width:1190px){.catalog-shell{padding-inline:30px;grid-template-columns:200px minmax(0,1fr);gap:22px}.catalog-banner-copy{padding:25px}.catalog-banner h1,html[lang=zh-CN] .catalog-banner h1{font-size:32px}html[lang=en] .catalog-banner h1{font-size:30px}.catalog-banner p{font-size:15px}.category-sidebar{padding-inline:14px}.category-sidebar a[aria-current],.category-sidebar .category-all{margin-inline:-14px;padding-inline:21px}.category-requirements{grid-template-columns:repeat(2,minmax(0,1fr))}.main-nav{margin-left:10px;gap:20px}.header-inner{gap:22px}.header-actions{gap:16px}.material-figure .image-zoom{height:235px}}
@media(max-width:950px){.catalog-shell{grid-template-columns:180px minmax(0,1fr);gap:18px;padding-inline:24px}.catalog-banner{grid-template-columns:1.2fr .8fr}.catalog-banner-copy{padding:22px}.catalog-banner .button{gap:8px;padding-inline:12px}.product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.category-sidebar a{font-size:14px}.category-row-head{display:block}.category-row-head>.text-link{margin-top:12px}.material-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.main-nav{gap:16px}.main-nav a{font-size:14px}.brand img{width:168px}.header-inner{gap:12px}.header-actions{gap:13px}}
@media(max-width:820px){.header-inner{height:72px}.main-nav{top:72px}.catalog-shell{display:block;padding:18px 24px 32px}.category-sidebar{position:static;margin-bottom:18px;padding:0}.category-sidebar h2{display:none}.category-toggle{display:flex;justify-content:space-between;align-items:center;width:100%;padding:13px 17px;border:0;background:#254d42;color:white;font-size:16px;min-height:48px;font-weight:650}.category-toggle svg{width:17px;height:17px;transition:transform .2s}.category-toggle[aria-expanded=true] svg{transform:rotate(90deg)}.category-sidebar nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));padding:5px 15px 13px;gap:0 12px}.js-enabled .category-sidebar nav{display:none}.js-enabled .category-sidebar.is-open nav{display:grid}.category-sidebar a,.category-sidebar a[aria-current],.category-sidebar .category-all{margin:0;background:transparent;color:#21382f;min-height:43px;padding:10px 2px;border-bottom:1px solid #d8e0db;font-size:14px}.category-sidebar a[aria-current]{font-weight:750}.category-sidebar h2+nav{display:grid}.catalog-banner{min-height:230px}.catalog-banner img{max-height:255px}.catalog-banner h1,html[lang=zh-CN] .catalog-banner h1{font-size:34px}html[lang=en] .catalog-banner h1{font-size:34px}.catalog-heading h2{font-size:27px}.material-heading{display:block}.material-heading h2{font-size:32px}.material-heading p{margin-top:12px;max-width:none}.directory-heading h1{font-size:34px}.inquiry h2{font-size:44px}.catalog-guide h2{font-size:36px}}
@media(max-width:560px){.catalog-shell{padding-inline:18px}.catalog-banner{grid-template-columns:minmax(0,1fr) 116px;min-height:195px}.catalog-banner-copy{padding:20px 15px}.catalog-banner h1,html[lang=zh-CN] .catalog-banner h1{font-size:27px;line-height:1.3}html[lang=en] .catalog-banner h1{font-size:24px;line-height:1.17;letter-spacing:-.035em}.catalog-banner p{font-size:13px;line-height:1.55;margin-top:11px}.catalog-banner .button{font-size:12px;min-height:39px;margin-top:14px;padding:9px 11px;gap:8px}.catalog-banner .arrow{width:18px}.catalog-banner img{max-height:220px}.catalog-heading{margin-top:24px;gap:7px}.catalog-heading h2{font-size:25px}.catalog-heading p{font-size:13px}.catalog-filters button{font-size:13px;padding:8px 12px}.product-grid{grid-template-columns:1fr;gap:30px}.product-card h3{font-size:23px}html[lang=en] .product-card h3{font-size:21px}.product-card p{font-size:15px}.product-card .text-link{font-size:15px}.product-card-actions{gap:10px 24px}.directory-heading h1{font-size:30px}.directory-heading p{font-size:16px}.category-row{padding:19px 15px}.category-row h2{font-size:24px}.category-row p{font-size:14px}.category-requirements{grid-template-columns:1fr;gap:6px;margin-top:15px}.category-requirements li{padding:11px 12px;font-size:14px}.category-row .text-link{white-space:normal}.material-grid{grid-template-columns:1fr;gap:24px}.material-figure .image-zoom{height:auto;aspect-ratio:1.12}.material-heading h2{font-size:30px}.material-figure figcaption{font-size:14px}.material-section{padding-block:28px}.photo-dialog-inner{padding:53px 13px 16px}.photo-dialog img{max-height:70vh}.inquiry h2{font-size:39px}.catalog-guide h2{font-size:32px}.gallery-thumbs{flex-wrap:wrap}.brand img{width:147px}.header-actions{gap:9px}}
@media(prefers-reduced-motion:reduce){.product-card img,.category-toggle svg{transition:none}}

.category-nav{list-style:none;margin:0;padding:0}.catalog-banner h1 span{display:block}.catalog-banner-image{min-width:0;background:#e9edeb}.catalog-heading{display:block}.catalog-heading>div:first-child{display:flex;align-items:baseline;gap:16px;flex-wrap:wrap}.catalog-filters{margin-top:14px}.category-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap}.material-grid--two{grid-template-columns:repeat(2,minmax(0,1fr))}.catalog-main .product-card-actions{display:flex;gap:10px 20px;flex-wrap:wrap}.directory-heading{padding-bottom:24px}@media(max-width:820px){.category-sidebar nav{display:block}.category-nav{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}.category-sidebar a.category-all{padding-inline:2px}.js-enabled .category-sidebar.is-open nav{display:block}}@media(max-width:560px){.material-grid--two{grid-template-columns:1fr}.category-actions{margin-top:13px}.catalog-heading>div:first-child{gap:7px}}

.gallery-main{border:0;padding:0;width:100%;display:block}.catalog-count:empty{display:none}.catalog-count{display:block;margin:0 0 14px}.catalog-main .product-card-actions .text-link{white-space:nowrap}
@media(min-width:821px){.catalog-banner{height:240px;min-height:0}.catalog-banner-copy{padding:20px 28px}.catalog-banner img{height:240px;max-height:240px}html[lang=zh-CN] .catalog-banner h1{font-size:36px;line-height:1.28}.catalog-banner .button{min-height:42px;margin-top:16px}}

/* Optional real-photo thumbnail; rows without a photo retain the existing layout. */
.category-row.has-image{display:grid;grid-template-columns:190px minmax(0,1fr);gap:22px;align-items:start}
.category-row-body{min-width:0}
.category-photo{margin:0;max-width:190px}
.category-photo figcaption{color:var(--muted);font-size:13px;line-height:1.45;margin-top:8px}
.category-row-media{position:relative;display:block;width:190px;max-width:100%;aspect-ratio:1;margin:0;padding:0;border:0;background:var(--soft)}
.category-row-media.image-zoom,.category-row-media .image-zoom{cursor:zoom-in}
.category-row-media .image-zoom{position:absolute;inset:0;width:100%;height:100%;padding:0;border:0;background:transparent}
.category-row-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center}
@media(max-width:1190px){
  .category-row.has-image{grid-template-columns:150px minmax(0,1fr);gap:18px}
  .category-row-media{width:150px}
}
@media(max-width:560px){
  .category-row.has-image{grid-template-columns:minmax(0,1fr);gap:16px}
  .category-row-media{width:190px}
}