*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:#122f49;font:15px/1.65 Arial,'PingFang SC','Microsoft YaHei',sans-serif}a{color:inherit;text-decoration:none}button,input,select{font:inherit}a,button,input,select{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,.table-scroll:focus-visible{outline:3px solid #71c7ed;outline-offset:4px}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.skip-link{position:absolute;left:24px;top:-70px;z-index:100;background:#122f49;color:#fff;padding:10px 20px}.skip-link:focus{top:12px}
.catalog-header{border-bottom:1px solid #dbe9f2;min-height:94px;padding:18px 6%;display:flex;align-items:center;gap:34px;background:#fff}.brand{flex-shrink:0}.brand img{display:block;width:200px;max-width:100%;height:auto}.catalog-header nav{display:flex;align-items:center;flex-wrap:wrap;gap:30px;margin-left:auto;font-size:14px}.catalog-header nav a:hover,.catalog-header nav a[aria-current],.breadcrumb a:hover,.back-link:hover{color:#087ebA}.catalog-language{font-size:12px;white-space:nowrap;border-left:1px solid #dbe9f2;padding-left:24px}.catalog-language:hover{color:#087eba}main{max-width:1240px;margin:auto;padding:28px 30px 80px}.breadcrumb{font-size:12px;color:#718da0;margin:0 0 30px;display:flex;flex-wrap:wrap;gap:10px}.catalog-title{text-align:left;padding:30px 0 35px;max-width:780px}.eyebrow{color:#087eba;letter-spacing:1.8px;font-size:11px;text-transform:uppercase;font-weight:600;margin:0 0 13px}h1{font-size:42px;line-height:1.2;letter-spacing:-1.2px;margin:0 0 20px;font-weight:500;overflow-wrap:anywhere}.catalog-title h1:after{content:none!important}.catalog-title p:last-child{color:#647f92;margin:0;max-width:680px;font-size:14px;line-height:1.8}.green-button{display:inline-flex;align-items:center;justify-content:center;background:#087fbd;color:#fff;padding:12px 24px;border:0;border-radius:7px;font:inherit;font-size:14px;cursor:pointer;line-height:1.65}.green-button:hover{background:#086ea2}#catalog-status{color:#7891a2;font-size:13px;margin:25px 0 20px}.catalog-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.product-card{border:1px solid #e0ebf2;border-radius:12px;display:flex;flex-direction:column;overflow:hidden;background:#fff;padding:0;transition:transform .2s,border-color .2s,box-shadow .2s}.product-card:hover{transform:translateY(-3px);border-color:#80c9ec;box-shadow:0 12px 30px #16465f0a}.product-card-picture{aspect-ratio:1.32;background:#f6fafd;padding:14px;display:grid;place-items:center;overflow:hidden}.product-card img{display:block;width:100%;height:100%;aspect-ratio:auto;object-fit:contain;mix-blend-mode:multiply}.product-card-content{padding:21px 22px 23px;display:flex;flex-direction:column;flex:1}.product-card .product-line{color:#7b98aa;font-size:10px;letter-spacing:.6px;text-transform:uppercase}.product-card h2{font-size:19px;font-weight:500;line-height:1.45;margin:7px 0 10px;overflow-wrap:anywhere;color:#122f49}.product-card p{margin:0 0 22px;color:#6d879a;font-size:12px;line-height:1.7;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden}.product-card .product-card-more{color:#087fbd;margin-top:auto;font-size:12px;display:flex;justify-content:space-between;gap:15px}.product-card-more b{font-weight:400}
.product-detail{display:grid;grid-template-columns:.85fr 1.15fr;gap:55px;align-items:start}.product-detail h1{font-size:34px;letter-spacing:-.8px}.product-image{background:#f7fbfd;padding:24px;border:1px solid #e0ebf2;border-radius:12px}.product-image img{width:100%;height:auto;display:block;aspect-ratio:1;object-fit:contain;mix-blend-mode:multiply}.product-summary{font-size:14px;color:#668194;line-height:1.85;margin:0 0 20px}.product-categories{display:flex;flex-wrap:wrap;gap:8px}.product-categories a{border:1px solid #dcebf4;border-radius:30px;color:#688da4;font-size:10px;padding:4px 11px;background:#f6fbfe}.product-categories a:hover{border-color:#71c7ed;color:#087fbd}table{width:100%;border-collapse:collapse;margin:24px 0 28px;font-size:13px}th,td{border-bottom:1px solid #e2edf4;padding:12px 13px;text-align:left;vertical-align:top;overflow-wrap:anywhere}.property-table th{width:31%;font-weight:400;color:#567184;background:#f3f9fd}.property-table td{color:#35576f}.product-actions{display:flex;flex-wrap:wrap;align-items:center;gap:17px}.back-link{display:inline-block;margin:0;color:#66899e;font-size:12px}.product-confirmation{color:#7b94a4;font-size:11px;line-height:1.7;margin:20px 0 0;max-width:480px}.product-sections{display:grid;grid-template-columns:1fr 1fr;gap:30px 50px;margin-top:44px}.product-info-section{min-width:0;border-top:1px solid #dbe9f2;padding-top:25px}.product-info-section h2{font-size:22px;letter-spacing:-.35px;line-height:1.4;font-weight:500;margin:0 0 18px}.product-info-section ul{padding-left:20px;margin:0;color:#637f92;font-size:14px;line-height:1.8}.product-info-section li{margin:0 0 8px;padding-left:3px}.product-info-section li::marker{color:#46a7d4}.product-grade-section{grid-column:1/-1}.table-scroll{overflow-x:auto;border:1px solid #dbe9f2;border-radius:9px}.grade-table{margin:0;min-width:640px;table-layout:auto}.grade-table th{background:#edf7fd;color:#426982;font-weight:500;white-space:normal;width:auto}.grade-table td{font-size:12px;color:#567184;overflow-wrap:normal}.grade-table tbody tr:last-child td{border-bottom:0}.grade-table tbody tr:nth-child(even){background:#f9fcfe}footer{background:#edf7fd;text-align:center;padding:36px 20px;border-top:1px solid #dbe9f2;color:#69889d}footer>a:first-child{color:#087eba;font-size:22px;font-weight:500;letter-spacing:1px}footer p{font-size:12px;margin:8px 0}footer>a:last-child{font-size:13px;color:#357999}.empty{padding:52px 20px;color:#6f8a9c;grid-column:1/-1;text-align:center;border:1px dashed #d5e7f2;border-radius:10px}
@media(max-width:1000px){.catalog-header{padding:18px 4%;gap:23px}.catalog-header nav{gap:20px}.brand img{width:180px}.catalog-grid{gap:18px}.product-card-content{padding:18px}.product-card h2{font-size:17px}.product-detail{gap:30px}.product-detail h1{font-size:30px}}@media(max-width:760px){.catalog-header{flex-wrap:wrap;gap:14px 20px;padding:17px 24px;min-height:0}.brand img{width:166px}.catalog-language{order:2;margin-left:auto;border:0;padding:0}.catalog-header nav{order:3;flex-basis:100%;margin:0;gap:23px;font-size:12px}main{padding:24px 24px 55px}.breadcrumb{font-size:11px;margin-bottom:22px}.catalog-title{padding:18px 0 27px}h1{font-size:34px}.catalog-title p:last-child{font-size:13px}.catalog-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.product-card-picture{aspect-ratio:1.12;padding:8px}.product-card-content{padding:15px 13px 17px}.product-card .product-line{font-size:8px;letter-spacing:.3px}.product-card h2{font-size:15px;line-height:1.5;margin:6px 0 9px}.product-card p{font-size:11px;margin-bottom:17px;-webkit-line-clamp:3}.product-card .product-card-more{font-size:11px}.product-detail{grid-template-columns:1fr;gap:30px}.product-image{max-width:500px;width:100%;margin:auto;padding:24px}.product-detail h1{font-size:30px}.product-sections{grid-template-columns:1fr;gap:28px;margin-top:32px}.product-grade-section{grid-column:auto}.product-info-section h2{font-size:21px}.product-actions{gap:16px}.product-actions .green-button{font-size:13px}table{font-size:12px}.product-summary{font-size:13px}.property-table th{width:32%}.product-confirmation{font-size:11px}}@media(max-width:380px){main{padding-left:18px;padding-right:18px}.catalog-header{padding-left:18px;padding-right:18px}.catalog-grid{gap:10px}.product-card-content{padding:13px 11px}.product-card h2{font-size:14px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.product-card{transition:none}}
.product-image-note{font-size:10px;color:#8da7b7;text-align:center;margin:10px 0 0;letter-spacing:.35px}

/* Catalog browsing: product lines above, material families beside the results. */
.catalog-page{max-width:1340px}
.catalog-page [hidden]{display:none!important}
.catalog-page .breadcrumb{margin-bottom:14px}
.catalog-page .catalog-title{padding:28px 0 32px;max-width:800px}
.catalog-page .catalog-title h1{font-size:42px;margin-bottom:15px}
.catalog-page .catalog-title p:last-child{max-width:760px}
.catalog-page .catalog-lines{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:0 0 32px}
.catalog-lines button{display:flex;align-items:center;justify-content:space-between;gap:12px;text-align:left;padding:17px 20px;background:#f6fafd;border:1px solid #e1edf4;border-radius:10px;color:#526f83;font-size:14px;font-weight:500;line-height:1.4;cursor:pointer;min-width:0;transition:background .15s,border-color .15s}
.catalog-lines button:hover{background:#edf7fd;border-color:#a0d6ee;color:#087fbd}
.catalog-lines button[aria-pressed=true]{background:#eaf7ff;border-color:#5ab9e4;color:#066eaa;box-shadow:inset 0 0 0 1px #5ab9e41a}
.line-count{flex-shrink:0;font-size:11px;line-height:1;padding:6px 8px;border-radius:5px;background:#eaf0f5;color:#71899b;font-variant-numeric:tabular-nums}
[aria-pressed=true]>.line-count{background:#087fbd;color:#fff}
.catalog-workspace{display:grid;grid-template-columns:258px minmax(0,1fr);gap:32px;align-items:start}
.catalog-sidebar{position:sticky;top:24px;min-width:0}
#category-panel{border:1px solid #e0ebf2;border-radius:12px;overflow:hidden;background:#fff}
#category-toggle{display:flex;align-items:center;gap:12px;list-style:none;padding:20px 19px 0;font-size:15px;font-weight:600;color:#173c56}
#category-toggle::-webkit-details-marker,.category-group>summary::-webkit-details-marker{display:none}
#category-toggle>.category-chevron,#category-mobile-selection{display:none}
.category-panel-body{padding:0 10px 12px;max-height:calc(100vh - 112px);overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:#c6dce9 transparent;scroll-padding-block:12px}
.category-hint{font-size:11px;color:#8196a5;margin:3px 9px 19px}
.category-option{display:flex;align-items:baseline;justify-content:space-between;gap:12px;width:100%;text-align:left;border:1px solid transparent;border-radius:6px;background:transparent;color:#597386;font-size:12px;line-height:1.5;padding:9px 10px;cursor:pointer}
.category-option>span:first-child{min-width:0;overflow-wrap:break-word}
.category-count{font-size:10px;flex-shrink:0;min-width:18px;text-align:right;font-variant-numeric:tabular-nums;color:#8a9ca9}
.category-option:hover{background:#f1f8fc;color:#087fbd}
.category-option[aria-pressed=true]{background:#eaf6fd;color:#0879b4;border-color:#d7edf9;font-weight:600}
.category-option[aria-pressed=true]>.category-count{color:#0879b4}
.category-all{margin:0 0 10px}
.category-group{border-top:1px solid #e8eff4;padding:3px 0 5px}
.category-group>summary{display:flex;align-items:center;justify-content:space-between;gap:12px;list-style:none;cursor:pointer;padding:13px 10px;font-size:12px;letter-spacing:.1px;font-weight:600;color:#234b66}
.category-chevron{display:block;flex-shrink:0;width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg);margin:-3px 3px 0 0;color:#7d9aab}
details[open]>summary>.category-chevron{transform:rotate(225deg);margin-top:3px}
.category-options{padding-bottom:8px}
.category-group>summary:focus-visible,#category-toggle:focus-visible{outline:2px solid #159ddd;outline-offset:-3px;border-radius:5px}
.category-option:focus-visible{outline:2px solid #159ddd;outline-offset:-2px}
.catalog-results{min-width:0}
.catalog-search-bar{display:flex;gap:10px;align-items:stretch;padding:0;margin:0 0 24px}
.catalog-query{display:flex;align-items:center;gap:12px;flex:1;min-width:0;border:1px solid #dce8f0;background:#f8fbfd;border-radius:8px;padding:0 16px}
.catalog-query:focus-within{border-color:#40aae0;box-shadow:0 0 0 3px #edf8fe;background:#fff}
.catalog-query>svg{width:19px;height:19px;flex-shrink:0;color:#7195ac}
.catalog-query input{width:100%;min-width:0;height:49px;padding:0;border:0;background:transparent;color:#234860;font-size:13px;outline:none}
.catalog-query input::placeholder{color:#7b93a4;opacity:1}
.catalog-search-bar .green-button{padding:11px 24px;flex-shrink:0}
.catalog-results-toolbar{display:flex;justify-content:space-between;align-items:center;gap:15px;margin:0 0 20px;min-height:34px}
.catalog-results-title{display:flex;align-items:baseline;gap:13px;flex-wrap:wrap;min-width:0}
#catalog-selection{font-size:18px;line-height:1.4;font-weight:500;margin:0;color:#173c56;overflow-wrap:anywhere}
.catalog-results #catalog-status{font-size:12px;line-height:1.5;margin:0;color:#8096a5}
#catalog-reset{padding:7px 0;border:0;flex-shrink:0;background:none;color:#087fbd;cursor:pointer;font-size:12px;display:flex;gap:7px;align-items:center}
#catalog-reset:hover{text-decoration:underline}
#catalog-active-filters{display:flex;gap:8px;flex-wrap:wrap;margin:-6px 0 20px}
#catalog-active-filters button{border:1px solid #d8eaf5;border-radius:5px;background:#f3f9fd;color:#52758c;font-size:11px;display:flex;align-items:center;gap:12px;padding:5px 9px;cursor:pointer;max-width:100%;overflow-wrap:anywhere;text-align:left}
#catalog-active-filters button span{font-size:15px;line-height:1;color:#668da6}
.catalog-page .catalog-grid{gap:20px}
.catalog-page .product-card-content{padding:19px 18px 20px}
.catalog-page .product-card h2{font-size:17px}
.catalog-page .product-card-picture{aspect-ratio:1.25}
.catalog-page button:disabled{cursor:default;opacity:.55}
@media(min-width:901px){#category-toggle{cursor:default}}
@media(min-width:901px) and (max-width:1150px){.catalog-workspace{grid-template-columns:228px minmax(0,1fr);gap:24px}.catalog-page .catalog-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.catalog-lines button{padding:15px;font-size:13px}}
@media(max-width:900px){
  .catalog-workspace{grid-template-columns:minmax(0,1fr);gap:20px}
  .catalog-sidebar{position:static}
  .catalog-page .catalog-lines{gap:10px;margin-bottom:20px}
  .catalog-lines button{padding:14px;font-size:12px;gap:8px}
  #category-toggle{padding:15px 17px;cursor:pointer;font-size:13px}
  #category-toggle>.category-chevron{display:block;margin-left:0}
  #category-mobile-selection{display:block;margin-left:auto;max-width:58%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:400;color:#728da0;font-size:12px}
  .category-panel-body{max-height:52vh;padding:0 12px 12px;border-top:1px solid #e9f0f5}
  .category-hint{margin-top:13px}
  .category-option{font-size:13px;min-height:42px}
  .category-count{font-size:11px}
  .category-group>summary{font-size:13px;min-height:44px}
  .catalog-search-bar{margin-bottom:20px}
  .catalog-query input{font-size:16px}
}
@media(max-width:600px){
  .catalog-page .breadcrumb{margin-bottom:5px}
  .catalog-page .catalog-title{padding:24px 0}
  .catalog-page .catalog-title h1{font-size:34px;margin-bottom:12px}
  .catalog-page .catalog-title p:last-child{font-size:12px;line-height:1.75}
  .catalog-page .catalog-lines{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .catalog-lines button{padding:13px 12px;min-height:53px;font-size:12px}
  .line-count{font-size:10px;padding:5px 6px}
  .catalog-search-bar{gap:8px;margin-bottom:17px}
  .catalog-query{padding:0 11px;gap:9px}
  .catalog-query>svg{width:16px;height:16px}
  .catalog-query input{font-size:16px;height:46px}
  .catalog-search-bar .green-button{font-size:12px;padding:10px 16px}
  .catalog-results-toolbar{gap:10px;margin-bottom:16px;align-items:flex-start}
  .catalog-results-title{gap:3px 10px}
  #catalog-selection{font-size:16px}
  .catalog-results #catalog-status{font-size:11px}
  #catalog-reset{font-size:11px;padding-top:3px}
  .catalog-page .catalog-grid{gap:12px}
  .catalog-page .product-card-content{padding:14px 12px 17px}
  .catalog-page .product-card h2{font-size:14px}
  .catalog-page .product-card-picture{aspect-ratio:1.1}
}
@media(max-width:360px){.catalog-lines button{font-size:11px;padding:11px 9px;gap:5px}.catalog-page .catalog-grid{gap:10px}.catalog-page .product-card-content{padding:12px 10px 15px}}
@media(prefers-reduced-motion:reduce){.catalog-lines button{transition:none}}