:root{--ink:#193e49;--muted:#68828b;--body:#5b7077;--line:#dbe4e2;--paper:#fafbfa;--wash:#edf2f0}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Microsoft YaHei","PingFang SC",sans-serif;font-weight:500}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #719ca7;outline-offset:4px}button{color:inherit}button:disabled{cursor:default}.wrap{max-width:1320px;width:calc(100% - 112px);margin:auto}.site-head{height:112px;display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line)}.brand{font-size:22px;font-weight:750;letter-spacing:.4px;white-space:nowrap}.brand small{display:block;font-size:9px;letter-spacing:4px;margin-top:8px}nav{display:flex;padding:5px;border:1px solid #d5dedb;border-radius:99px;background:#f0f4f2;gap:2px}nav a{padding:12px 21px;border-radius:99px;font-size:14px;white-space:nowrap}nav .active{background:var(--ink);color:#fff}.breadcrumb{display:flex;gap:16px;font-size:12px;color:var(--body);padding:26px 0}.catalog-intro{display:grid;grid-template-columns:1fr .65fr;gap:70px;align-items:center;padding:12px 0 42px}.eyebrow{font-size:10px;letter-spacing:2.5px;font-weight:700;color:var(--muted);margin:0 0 18px}h1{font-size:clamp(30px,3.2vw,44px);font-weight:600;line-height:1.45;margin:0 0 16px;letter-spacing:.3px}h1 span,h2 span{color:var(--muted)}p{line-height:1.8}.catalog-intro>div>p:last-child{color:var(--body);font-size:15px;margin:0}.intro-photo{height:220px;border-radius:18px;overflow:hidden;position:relative;background:#bccdce}.intro-photo img{width:100%;height:100%;object-fit:cover;object-position:center 60%}.intro-photo span{position:absolute;bottom:17px;left:22px;color:#fff;font-size:10px;letter-spacing:2px;text-shadow:0 1px 8px #183a43}.catalog-layout{display:grid;grid-template-columns:205px 1fr;gap:42px;padding-top:30px;border-top:1px solid var(--line)}aside h2{font-size:16px;margin:0 0 22px}.categories{display:grid;gap:6px}.category{display:flex;align-items:center;justify-content:space-between;gap:12px;background:transparent;border:0;border-radius:10px;padding:14px 12px;text-align:left}.category strong{font-weight:600;font-size:15px}.category small{display:block;color:var(--body);font-size:11px;margin-top:5px}.category .num{font-size:12px;opacity:.75}.category[aria-pressed=true]{background:var(--ink);color:#fff}.category[aria-pressed=true] small{color:#c0d4d7}.help{margin-top:32px;padding:23px 0;border-top:1px solid var(--line)}.help p{font-size:15px;margin:0 0 10px}.help span{font-size:12px;line-height:1.8;color:var(--body)}.text-link{background:none;border:0;padding:0;font-size:12px}.help button{display:block;margin-top:20px;font-size:13px}.search-row{display:flex;gap:14px;align-items:center}.search{display:flex;gap:12px;align-items:center;padding:14px 20px;background:#fff;border:1px solid var(--line);border-radius:99px;flex:1}.search svg{width:19px;height:19px;fill:none;stroke:var(--ink);stroke-width:1.5;flex-shrink:0}.search input{border:0;outline:none;width:100%;min-width:0;background:none;color:var(--ink);font-size:14px}.use-filter{display:flex;align-items:center;gap:9px;font-size:12px;white-space:nowrap}.use-filter select{max-width:170px;padding:13px 27px 13px 13px;background:transparent;border:1px solid var(--line);border-radius:99px;color:var(--ink);font-size:13px}.results-head{display:flex;justify-content:space-between;align-items:center;margin:23px 0 17px}.results-head p{margin:0;font-size:13px;color:var(--body)}.results-head strong{color:var(--ink);font-size:17px}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.card{display:flex;flex-direction:column;min-height:190px;background:#fff;border:1px solid var(--line);border-radius:15px;padding:21px;transition:border-color .2s,background .2s}.card-top{display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:11px}.card-cat{font-size:22px;font-weight:700;letter-spacing:1px}.card h2{font-size:clamp(18px,1.65vw,25px);font-weight:650;margin:21px 0 11px;overflow-wrap:anywhere;line-height:1.2}.card p{margin:0 0 18px;font-size:12px;color:var(--body)}.card-meta{display:flex;align-items:flex-end;flex-wrap:wrap;gap:10px;margin-top:auto}.card .tags{display:flex;flex:1 1 75px;gap:5px;flex-wrap:wrap;align-items:center;min-height:19px;margin:0}.tags span{font-size:11px;line-height:15px;background:#eaf0ee;padding:2px 9px;border-radius:99px}.card-bottom{margin:0 0 0 auto;padding:0;display:flex;flex:0 0 auto;align-items:center;justify-content:flex-end;gap:7px}.card-bottom .card-action{display:inline-flex;align-items:center;justify-content:center;font-size:11px;line-height:16px;border:1px solid var(--ink);border-radius:99px;background:#fff;color:var(--ink);padding:7px 12px;white-space:nowrap;transition:background .2s,color .2s}.card-bottom .card-detail{background:var(--ink);color:#fff}.more{display:block;margin:28px auto 0;padding:12px 35px;border:1px solid #c9d6d2;border-radius:99px;background:transparent;font-size:13px}.preview-note{font-size:11px;color:#72858b;line-height:1.8;margin:23px 0}.empty{padding:65px 20px;text-align:center;background:var(--wash);border-radius:16px}.empty h2{font-size:21px}.empty p{font-size:14px;color:var(--body)}.bottom-cta{margin:65px 0 50px;padding:32px 36px;background:var(--wash);border-radius:18px;display:flex;align-items:center;justify-content:space-between;gap:30px}.bottom-cta h2{font-size:25px;font-weight:600;margin:0}.bottom-cta p{font-size:14px;color:var(--body);margin:10px 0 0}.pill{display:inline-block;background:var(--ink);color:#fff;border:1px solid var(--ink);border-radius:99px;padding:13px 25px;font-size:14px;white-space:nowrap;transition:background .2s,color .2s}footer{background:#143548;color:#d1dee2;padding:34px 0;font-size:13px}footer .wrap{display:flex;gap:30px;justify-content:space-between;align-items:center}footer strong{font-weight:600}dialog{width:min(550px,calc(100% - 32px));border:1px solid var(--line);border-radius:20px;background:var(--paper);padding:32px;color:var(--ink);max-height:90svh;overflow:auto}dialog::backdrop{background:#0f283c88;backdrop-filter:blur(5px)}.close{float:right;width:33px;height:33px;border:1px solid var(--line);background:none;border-radius:50%;font-size:23px}dialog h2{font-size:25px;font-weight:600;margin:0 0 25px}form label{display:block;font-size:13px;margin-bottom:19px}form label>span{color:var(--muted);font-size:11px}form input,form textarea{display:block;width:100%;padding:13px 14px;border:1px solid #cbd8d4;background:#fff;color:var(--ink);border-radius:9px;margin-top:9px;font-size:14px}form textarea{resize:vertical}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.error{display:block;color:#b83f3f;font-size:11px;margin-top:6px}input[aria-invalid=true]{border-color:#c84141;background:#fff7f7}#quote-status{font-size:14px;color:var(--ink)}[hidden]{display:none!important}.detail-hero{display:grid;grid-template-columns:.9fr 1.1fr;gap:65px;padding:12px 0 46px}.detail-visual{border-radius:19px;overflow:hidden;position:relative;aspect-ratio:1.12;background:var(--wash)}.detail-visual img{width:100%;height:100%;object-fit:cover}.detail-visual small{position:absolute;bottom:16px;left:20px;color:#fff;font-size:11px;background:#193e4977;border-radius:99px;padding:5px 12px}.detail-copy{padding:20px 0}.detail-copy h1{font-size:44px;overflow-wrap:anywhere}.detail-copy .material-name{font-size:20px;color:var(--muted);margin:0 0 23px}.detail-copy .description{font-size:16px;color:var(--body);line-height:1.85}.detail-copy .tags{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0}.detail-copy .tags span{font-size:13px;line-height:17px;padding:2px 16px}.detail-copy .actions{display:flex;gap:12px;margin-top:29px}.outline{background:transparent;color:var(--ink)}.detail-info{display:grid;grid-template-columns:1fr 1fr;gap:50px;padding:35px 0 20px;border-top:1px solid var(--line)}.detail-info h2,.related-title{font-size:23px;font-weight:600;margin:0 0 24px}.detail-info dl{margin:0}.detail-info dl>div{display:flex;justify-content:space-between;gap:20px;padding:15px 0;border-bottom:1px solid var(--line);font-size:14px}.detail-info dt{color:var(--body)}.detail-info dd{margin:0;text-align:right}.detail-info p{font-size:14px;color:var(--body)}.related{margin:40px 0 60px}.not-found{padding:80px 0;min-height:50vh}

@media(hover:hover) and (pointer:fine){.card:hover{border-color:#93adae;background:#fbfdfc}.pill:hover{background:#fff;color:var(--ink)}.card-bottom .card-action:hover,.more:hover{background:var(--ink);color:#fff}.card-bottom .card-detail:hover{background:#fff;color:var(--ink)}nav a:not(.active):hover{background:#e0e8e5}}

@media(max-width:1100px){.wrap{width:calc(100% - 64px)}.site-head{gap:16px}.brand{font-size:19px}nav a{padding:11px 14px;font-size:12px}.catalog-layout{grid-template-columns:170px 1fr;gap:25px}.cards{grid-template-columns:repeat(2,minmax(0,1fr))}.card h2{font-size:23px}.catalog-intro{gap:36px}.detail-hero{gap:35px}.detail-copy h1{font-size:36px}}

@media(max-width:740px){.wrap{width:calc(100% - 36px)}.site-head{height:auto;padding:23px 0 18px;display:block}.brand{font-size:19px}.brand small{font-size:8px;letter-spacing:3px;margin-top:6px}nav{margin-top:20px;justify-content:space-between}nav a{padding:10px 17px;font-size:12px}.breadcrumb{padding:22px 0;font-size:11px}.catalog-intro{grid-template-columns:1fr;gap:22px;padding:5px 0 28px}.catalog-intro h1{font-size:31px}.catalog-intro>div>p:last-child{font-size:14px}.intro-photo{height:145px}.eyebrow{font-size:9px;margin-bottom:12px}.catalog-layout{display:block;padding-top:24px}aside h2,.help{display:none}.categories{display:flex;gap:8px;overflow-x:auto;padding-bottom:10px;margin:0 -18px 17px;padding-left:18px;padding-right:18px}.category{flex:0 0 auto;border:1px solid var(--line);padding:11px 15px;border-radius:99px;gap:9px}.category strong{font-size:13px}.category small{display:none}.category .num{font-size:10px}.search-row{flex-wrap:wrap;gap:13px}.search{flex-basis:100%;padding:13px 17px}.use-filter{margin-left:auto}.use-filter select{padding:9px 25px 9px 13px}.results-head{margin:13px 0 18px}.cards{gap:12px}.card{padding:18px;min-height:180px}.card h2{font-size:22px}.card-bottom{gap:8px}.card-bottom .card-action{padding:7px 9px}.bottom-cta{margin:35px 0;padding:25px;display:block}.bottom-cta h2{font-size:22px;line-height:1.6}.bottom-cta h2 span{display:block}.bottom-cta .pill{margin-top:22px}footer .wrap{display:grid;grid-template-columns:1fr;gap:17px;font-size:12px}dialog{padding:25px}.detail-hero{grid-template-columns:1fr;gap:22px;padding-bottom:30px}.detail-visual{aspect-ratio:1.65}.detail-copy{padding:0}.detail-copy h1{font-size:36px;margin-bottom:12px}.detail-copy .material-name{font-size:18px}.detail-copy .description{font-size:15px}.detail-info{grid-template-columns:1fr;gap:32px;padding-top:28px}.related{margin:35px 0}.preview-note{font-size:10px}.detail-copy .actions .pill{font-size:13px;padding:12px 21px}}

@media(max-width:480px){.cards{grid-template-columns:1fr}.card{min-height:180px}.card h2{font-size:27px;margin-top:17px}.card .tags{margin:0;min-height:19px}.card-bottom .card-action{padding:8px 17px}.form-grid{grid-template-columns:1fr;gap:0}nav a{padding:10px 13px}.brand{font-size:18px}}

@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}



/* Wider catalog illustration, retaining the compact height. */

@media(min-width:741px){.catalog-intro{grid-template-columns:.9fr 1.1fr;gap:48px}}

.catalog-intro .intro-photo{height:220px;background:#bdcbcf}

.catalog-intro .intro-photo img{display:block;width:100%;height:100%;object-fit:cover;object-position:center}

@media(max-width:740px){.catalog-intro .intro-photo{height:145px}}

/* Make the details link cover its card while preserving the quote button. */

.card{position:relative;isolation:isolate}

.card .card-detail::after{content:"";position:absolute;inset:0;z-index:1;border-radius:15px;cursor:pointer}

.card [data-quote]{position:relative;z-index:2}

.card .card-detail:focus-visible::after{outline:3px solid #719ca7;outline-offset:3px}



/* Paired pill controls; stretched details link remains on the whole card. */

.card-bottom{gap:7px}.card .card-detail{position:static;background:var(--ink);color:#fff}.card .card-detail::after{z-index:1}.card [data-quote]{z-index:2}



footer .catalog-legal{justify-content:flex-end;gap:24px;margin-top:24px;font-size:12px;flex-wrap:wrap}@media(max-width:740px){footer .catalog-legal{display:flex;justify-content:flex-start;gap:14px}}



/* Mobile material filters follow the search field and wrap without scrolling. */

@media(max-width:740px){

 .catalog-layout .categories{display:flex;flex-wrap:wrap;flex:0 0 100%;gap:8px;width:100%;min-width:0;overflow:visible;margin:0;padding:0}

 .catalog-layout .category{padding:7px 10px}

}