@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;450;500;550;600;650;700&family=Manrope:wght@400;500;600;650;700;750;800&display=swap');
:root{--red:#bd251c;--ink:#191919;--muted:#666;--paper:#f6f6f3;--line:#d9d9d5}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:105px}body{margin:0;color:var(--ink);background:white;font-family:'DM Sans',Arial,sans-serif;font-size:16px;line-height:1.6}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a,input,select,textarea{outline-offset:5px}button{cursor:pointer}img{max-width:100%}.header{height:96px;padding:0 4.4%;display:flex;align-items:center;justify-content:space-between;gap:28px;background:#fff;border-bottom:1px solid #ececea;position:sticky;top:0;z-index:20}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-family:Manrope,sans-serif;font-size:26px;letter-spacing:-1px;line-height:1.25}.brand img{object-fit:contain;width:47px;height:47px}.brand small{display:block;font-family:'DM Sans',sans-serif;font-size:10px;font-weight:600;letter-spacing:1.6px;margin-top:4px}.header nav{display:flex;gap:32px;font-size:14px;font-weight:500}.header nav a:hover{color:var(--red)}.button{display:inline-flex;align-items:center;justify-content:center;padding:16px 25px;border:1px solid transparent;font-size:14px;font-weight:600;min-height:50px;transition:background .2s}.button.red{background:var(--red);color:#fff}.button.red:hover{background:#9d1b14}.button.small{padding:11px 19px;min-height:44px}.hero{position:relative;isolation:isolate;min-height:685px;background:#111;color:#fff;display:flex;align-items:center;padding:80px 6% 100px;overflow:hidden}.hero-media{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-3}.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.22),transparent 85%);z-index:-1}.hero-copy{max-width:710px}.eyebrow{font-size:12px;font-weight:650;letter-spacing:2.2px;color:var(--red);margin:0 0 25px}.eyebrow.light{color:#e7e3e0}.eyebrow.light:before{content:'';display:inline-block;width:24px;height:2px;background:#d8372b;vertical-align:middle;margin-right:12px}h1,h2,h3{font-family:Manrope,sans-serif;line-height:1.12;margin:0;font-weight:500;letter-spacing:-2.5px}h1{font-size:clamp(48px,5.1vw,82px)}h1 em{font-style:normal;color:#d4d1cc}h2{font-size:clamp(35px,3.4vw,54px)}h2 span{color:#81817d}h3{letter-spacing:-1px}.hero-desc{font-size:17px;color:#c3c2be;line-height:1.7;margin:27px 0 30px}.hero-actions{display:flex;align-items:center;gap:30px}.text-link{font-size:14px;font-weight:550;border-bottom:1px solid #777;padding:8px 0}.hero-footer{position:absolute;left:6%;right:6%;bottom:27px;border-top:1px solid #ffffff30;display:flex;justify-content:space-between;padding-top:18px;font-size:11px;letter-spacing:1.8px;color:#aaa}.section{padding:100px 6%}.intro{max-width:1500px;margin:auto}.intro>p:last-child{max-width:540px;color:var(--muted)}.skip{position:fixed;top:-100px;background:#fff;padding:10px;z-index:100}.skip:focus{top:0}@media(max-width:1000px){.header nav{gap:15px}.header{padding:0 4%;gap:16px}.brand{font-size:22px}.hero{min-height:640px}.hero-media{object-position:60% center}.hero-shade{background:linear-gradient(90deg,#0009,transparent)}h1{font-size:61px}}@media(max-width:720px){.header{height:80px}.header nav{display:none}.brand{font-size:21px}.brand small{font-size:8px}.brand img{width:36px;height:36px}.header .button{padding:9px 11px;font-size:12px}.hero{min-height:735px;align-items:flex-start;padding:48px 6% 260px}.hero-media{object-position:68% center;opacity:.8}.hero-shade{background:linear-gradient(180deg,#000b,#0005 60%,transparent)}h1{font-size:46px;letter-spacing:-2px}.hero-desc{font-size:16px}.hero-actions{gap:20px}.hero-footer span:last-child{display:none}.section{padding:65px 6%}.hero .eyebrow{font-size:10px}h2{letter-spacing:-1.5px}.hero-actions .button{padding:14px 18px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
.hero-video{z-index:-2}#hero-video{z-index:-2}#video-toggle{border:0;background:transparent;color:#ddd;font-size:12px;letter-spacing:1.3px;padding:0}#video-toggle span{color:#999}.principles{padding:24px 6%;display:flex;justify-content:space-between;gap:25px;font-size:13px;border-bottom:1px solid var(--line);background:#fafaf8}.principles span:first-child{font-size:11px;letter-spacing:1.5px;color:var(--red);font-weight:650}.section-heading{display:grid;grid-template-columns:1.5fr 1fr;gap:80px;align-items:end;margin-bottom:42px}.section-heading>p{color:var(--muted);max-width:385px;margin:0 0 5px}.filters{display:flex;gap:10px;flex-wrap:wrap;margin:36px 0 28px}.filters button{padding:10px 18px;border:1px solid var(--line);border-radius:0;background:white;font-size:13px}.filters button.active{background:var(--ink);color:white;border-color:var(--ink)}.material-grid{display:grid;grid-template-columns:repeat(4,1fr);border-left:1px solid var(--line)}.material-card{border:1px solid var(--line);border-left:0;background:#fafaf8;display:flex;flex-direction:column;padding:28px 24px 22px;min-height:360px;transition:background .2s}.material-card:hover{background:#f1f0ed}.material-card[hidden]{display:none}.card-top{display:flex;align-items:center;justify-content:space-between;color:#777;font-size:12px;gap:10px;margin-bottom:32px}.tag{font-size:10px;text-transform:uppercase;letter-spacing:.5px}.material-card h3{font-size:50px;letter-spacing:-3px}.material-name{font-weight:500;color:#333!important;margin:8px 0 20px!important}.material-card>p{font-size:14px;color:#666;line-height:1.65;margin:0 0 24px}.card-link{display:flex;justify-content:space-between;align-items:center;font-size:13px;border-top:1px solid var(--line);padding-top:18px;margin-top:auto;font-weight:600;gap:20px}.card-link>span{font-size:22px;font-weight:400;color:var(--red)}.note{font-size:12px;color:#73736c;line-height:1.7;margin-top:24px;max-width:900px}.note a{text-decoration:underline;text-underline-offset:3px}.specification{background:var(--paper)}.spec-layout{display:grid;grid-template-columns:1.1fr 1fr;gap:70px}.drawing-panel{background:#fff;padding:28px 28px 22px;border:1px solid var(--line)}.panel-label{display:flex;justify-content:space-between;font-size:10px;letter-spacing:1px;color:#888}.drawing-panel svg{width:100%;margin:14px 0;max-height:290px}.drawing-panel>p{font-size:13px;text-align:center}.calc{display:flex;align-items:center;gap:18px;padding-top:16px}.calc label{flex:1;font-size:12px;color:#666}.calc input{width:100%;margin-top:8px}.calc-result{display:flex;justify-content:space-between;font-size:13px;padding:16px 0 4px}.calc-result strong{color:var(--red);font-size:20px}.spec-table h3{font-size:24px;letter-spacing:-.7px;margin-bottom:18px}.spec-table dl{margin:0 0 25px}.spec-table dl>div{display:grid;grid-template-columns:1fr 1.3fr;gap:20px;padding:18px 0;border-bottom:1px solid var(--line);font-size:14px}.spec-table dt{font-weight:600}.spec-table dd{margin:0;color:#666}.applications{background:#1b1c1d;color:white}.applications .section-heading>p{color:#a8a8a6}.application-grid{display:grid;grid-template-columns:repeat(4,1fr);margin-top:60px}.application-grid article{border-left:1px solid #ffffff2a;padding:0 28px}.application-grid article:first-child{padding-left:0;border:0}.app-num{font-size:12px;color:#b3b0ad;display:block;margin-bottom:50px}.application-grid h3{font-size:27px;line-height:1.2}.application-grid p{color:#a9aaa6;font-size:14px;margin-bottom:0}.knowledge-grid{display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:25px}.guide-card{padding:35px 28px;background:#f3f3ef;min-height:300px;display:flex;flex-direction:column}.guide-card:nth-child(2){background:#eee9e6}.guide-card .eyebrow{font-size:10px;letter-spacing:1.4px}.guide-card h3{font-size:29px;letter-spacing:-1.1px;line-height:1.25}.guide-card p{font-size:14px;color:#666;margin:22px 0 30px}.faq{padding:8px 0 0 20px}.faq h3{font-size:22px;margin-bottom:18px}.faq details{border-bottom:1px solid var(--line);padding:15px 0;font-size:14px}.faq summary{cursor:pointer;font-weight:500;list-style:none;display:flex;justify-content:space-between;gap:12px}.faq summary:after{content:'+';color:var(--red)}.faq details[open] summary:after{content:'−'}.faq p{font-size:13px;color:#666;line-height:1.7}.enquiry{display:grid;grid-template-columns:1fr 1fr;gap:90px;background:#f5f5f2;border-top:1px solid var(--line)}.enquiry>div>p:not(.eyebrow){max-width:405px;color:#6a6a64}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:25px}label{font-size:13px;font-weight:500;display:block}input,select,textarea{display:block;width:100%;background:#fff;color:#333;border:1px solid #ccc;padding:12px 13px;font-size:14px;border-radius:0;margin-top:8px}textarea{resize:vertical;min-height:110px}input:focus,select:focus,textarea:focus{outline:2px solid var(--red);outline-offset:1px}.wide{grid-column:1/-1}#brief-status{font-size:13px;color:#455947;min-height:20px}.footer{padding:55px 6% 22px;background:#171818;color:#ddd}.footer-main{display:grid;grid-template-columns:1fr 1.3fr .7fr;gap:40px;align-items:start;padding-bottom:45px}.footer-main p{font-size:14px;color:#aaa;margin:0}.footer .brand{font-size:28px}.footer .brand small{color:#b8b6b3}.footer-main>div{display:flex;flex-direction:column;font-size:13px;gap:8px}.footer-bottom{display:flex;justify-content:space-between;border-top:1px solid #ffffff25;padding-top:20px;font-size:12px;color:#999;gap:25px}.article-hero{padding:35px 8% 80px;background:#f3f3ef}.breadcrumb{font-size:13px;color:#74746f;margin-bottom:55px}.breadcrumb a{text-decoration:underline;text-underline-offset:3px}.article-hero h1{font-size:clamp(45px,5.5vw,75px);max-width:1000px}.article-hero h1 span{color:#858580}.article-hero>p:last-child{max-width:650px;color:#666;margin:28px 0 0;font-size:18px}.article-content{display:grid;grid-template-columns:1fr 2.1fr;gap:85px;padding:80px 8%;max-width:1500px;margin:auto}.article-content aside{padding:30px;background:#f2f2ef;align-self:start;display:flex;flex-direction:column;gap:25px}.material-code{font-family:Manrope,sans-serif;font-size:74px;letter-spacing:-4px;color:var(--red);line-height:1}.article-content aside h3{font-size:22px}.article-content aside>a:last-child{font-size:13px;text-decoration:underline}.article-content article h2,.guide-body h2{font-size:36px;letter-spacing:-1.5px;margin-bottom:24px}.article-content article h3,.guide-body h3{font-size:25px;letter-spacing:-.7px;margin:40px 0 15px}.article-content article p,.guide-body p,.guide-body li{color:#666;line-height:1.8}.callout{background:#f4f1ee;border-left:3px solid var(--red);padding:24px;margin:30px 0}.callout p{margin-bottom:0}.guide-body{max-width:900px;padding:75px 35px 95px;margin:auto}.guide-body>.button{margin-top:25px}.formula{background:#191919;color:white;padding:30px;font-size:27px;letter-spacing:-.5px;margin:30px 0}.formula span{display:block;font-size:13px;color:#bbb;letter-spacing:0;margin-top:12px}.comparison-wrap{overflow:auto;margin:30px 0}table{border-collapse:collapse;width:100%;min-width:580px;text-align:left;font-size:14px}caption{text-align:left;font-size:13px;color:#666;margin-bottom:15px}th,td{padding:18px;border-bottom:1px solid var(--line);vertical-align:top}thead{background:#eee}tbody th{color:var(--red)}
@media(min-width:1700px){.hero{min-height:800px}.section{padding-left:max(6%,calc((100% - 1500px)/2));padding-right:max(6%,calc((100% - 1500px)/2))}}@media(max-width:1100px){.section-heading{gap:45px}.material-grid{grid-template-columns:repeat(2,1fr)}.material-card{border-bottom:1px solid var(--line)}.material-card h3{font-size:46px}.spec-layout{gap:35px}.application-grid article{padding:0 19px}.application-grid h3{font-size:23px}.knowledge-grid{grid-template-columns:1fr 1fr}.faq{grid-column:1/-1;padding:20px 0 0}.enquiry{gap:50px}.tag{font-size:11px}.article-content{gap:45px}}@media(max-width:720px){.principles{padding:20px 6%;flex-wrap:wrap;gap:12px 22px;font-size:11px}.principles span:first-child{width:100%}.section-heading{grid-template-columns:1fr;gap:24px;margin-bottom:30px}.section-heading>p{font-size:15px;max-width:none}.filters{gap:7px;margin:25px 0}.filters button{padding:9px 12px;font-size:12px}.material-grid{grid-template-columns:1fr 1fr}.material-card{padding:22px 16px;min-height:340px}.card-top{align-items:start;margin-bottom:26px}.tag{font-size:9px;max-width:75px;line-height:1.5;text-align:right}.material-card h3{font-size:41px;letter-spacing:-2px}.material-card>p{font-size:13px}.material-name{min-height:40px;margin-bottom:10px!important}.card-link{font-size:12px;gap:5px}.card-link>span{font-size:20px}.spec-layout{grid-template-columns:1fr;gap:42px}.drawing-panel{padding:20px 16px}.application-grid{grid-template-columns:1fr 1fr;margin-top:40px;gap:38px 20px}.application-grid article{padding:0 0 0 20px}.application-grid article:nth-child(3){padding-left:0;border:0}.app-num{margin-bottom:25px}.application-grid h3{font-size:24px}.application-grid p{font-size:13px}.knowledge-grid{grid-template-columns:1fr}.guide-card{min-height:290px}.enquiry{grid-template-columns:1fr;gap:35px}.form-grid{gap:16px}.footer-main{grid-template-columns:1fr;gap:28px}.footer-bottom{flex-wrap:wrap;gap:12px;font-size:11px}.article-hero{padding:30px 6% 55px}.breadcrumb{margin-bottom:35px}.article-hero h1{font-size:43px}.article-content{grid-template-columns:1fr;gap:38px;padding:50px 6%}.article-content aside{padding:25px}.article-content aside .material-code{font-size:60px}.article-content article h2,.guide-body h2{font-size:32px}.guide-body{padding:55px 6%}.formula{font-size:22px;padding:25px}.hero-footer{align-items:center}.hero-footer span:last-child{display:inline}.hero-footer>span{font-size:9px}.header .brand small{letter-spacing:1px}}@media print{.header,.hero,.footer,.enquiry,.filters,.hero-video{display:none}.section{padding:25px 0}.applications{background:white;color:black}}