:root{--ink:#173c38;--accent:#23665f;--paper:#f7f7f0;--soft:#e5eee7;--muted:#566964;--line:#cddbd2;font-family:Inter,-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC',sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none;scroll-behavior:smooth}*{box-sizing:border-box}body{margin:0}body.slabs{--ink:#463d35;--accent:#79523a;--paper:#f6f2e9;--soft:#e9dfd1;--muted:#716858;--line:#dbd0be}body.panel{--ink:#333c2c;--accent:#565d3c;--paper:#f3f3e9;--soft:#e5e7d6;--muted:#646b58;--line:#d2d7bf}body.lights{--ink:#423828;--accent:#93652c;--paper:#faf6eb;--soft:#ede4cc;--muted:#756954;--line:#ded3bb}a{color:inherit;text-underline-offset:5px}button,input,select,textarea{font:inherit}button,a{touch-action:manipulation}:focus-visible{outline:3px solid #ae6429;outline-offset:5px}.skip{position:absolute;top:-100px;padding:15px;background:#fff;z-index:3}.skip:focus{top:5px}.review-strip{background:var(--ink);color:var(--paper);font-size:10px;letter-spacing:.17em;text-align:center;padding:8px}header,main,footer{max-width:1440px;margin:auto;padding-left:5.6%;padding-right:5.6%}header{min-height:108px;display:flex;justify-content:space-between;align-items:center;gap:28px;border-bottom:1px solid var(--line)}.wordmark{text-decoration:none;font-size:29px;font-weight:700;letter-spacing:-1.5px;white-space:nowrap}.wordmark span{display:block;font-size:9px;letter-spacing:.22em;margin-top:6px;font-weight:500}nav{display:flex;align-items:center;gap:25px;font-size:12px}nav a{text-decoration:none}.nav-contact{padding:13px 0;border-bottom:1px solid var(--ink)}.language{border:1px solid var(--line);padding:8px}.hero{display:grid;grid-template-columns:1.15fr 1fr;gap:8%;padding:80px 0;align-items:center}h1,h2{font-family:Georgia,'Songti SC',serif;font-weight:400;letter-spacing:-.052em;line-height:1.05}h1{font-size:clamp(43px,4.7vw,70px);margin:0 0 28px}h2{font-size:clamp(30px,3.4vw,47px);margin:0}h3{font-family:Georgia,'Songti SC',serif;font-size:28px;font-weight:400;letter-spacing:-.025em;line-height:1.2}.eyebrow{font-size:10px;line-height:1.5;letter-spacing:.17em;text-transform:uppercase;margin:0 0 25px;font-weight:600}.intro{font-size:16px;line-height:1.9;color:var(--muted);max-width:570px;margin:0 0 30px}.actions{display:flex;align-items:center;gap:24px;flex-wrap:wrap;margin:24px 0}.button{display:inline-flex;align-items:center;justify-content:space-between;gap:32px;padding:17px 24px;min-height:49px;border:1px solid var(--ink);background:var(--ink);color:var(--paper);text-decoration:none;font-size:12px;cursor:pointer}.button.light{background:transparent;color:var(--ink)}.text-link{font-size:12px;text-decoration:none;border-bottom:1px solid var(--line);padding:10px 0}.specimen{min-height:460px;background:var(--soft);display:flex;flex-direction:column;padding:25px;border:1px solid var(--line)}.specimen-top,.specimen-bottom{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:9px;letter-spacing:.1em}.specimen-top{padding-bottom:18px;border-bottom:1px solid var(--line)}.specimen-bottom{padding-top:20px;border-top:1px solid var(--line)}.specimen-bottom>span:first-child{font-family:Georgia,'Songti SC',serif;font-size:25px;letter-spacing:-.04em}.specimen-bottom>span:last-child{font-size:8px;max-width:115px;line-height:1.6;text-align:right}.material-mark{position:relative;flex:1;min-height:310px;display:flex;justify-content:center;align-items:center;gap:14px;overflow:hidden}.material-mark i{display:block;position:relative;background:var(--accent);width:110px;height:190px;border-radius:70px 70px 30px 30px;box-shadow:12px 18px 0 #0000000a}.bath .material-mark i:nth-child(1){width:145px;height:180px;border-radius:75px;align-self:center;background:#eaf3ed;box-shadow:inset 0 0 0 15px #d2e1d7,12px 18px 0 #00000008}.bath .material-mark i:nth-child(2){height:220px;width:75px;border-radius:55px 55px 20px 20px}.bath .material-mark i:nth-child(3){display:none}.slabs .material-mark{gap:0;transform:rotate(-8deg)}.slabs .material-mark i{border-radius:2px;width:105px;height:218px;background:linear-gradient(119deg,#c6b59d 0%,#e6daca 40%,#b6a48b 41%,#e4dac9 43%,#cfbca4 78%,#ae967c 79%,#decfb7 82%);box-shadow:10px 15px 0 #0000000b;transform:skewY(-8deg)}.slabs .material-mark i:nth-child(2){background:linear-gradient(128deg,#797264,#a69a83 44%,#bcb299 45%,#686455 48%,#89816c);margin-left:-55px;transform:translateY(20px) skewY(-8deg)}.slabs .material-mark i:nth-child(3){background:#dfd1b9;margin-left:-55px;transform:translateY(40px) skewY(-8deg)}.panel .material-mark{gap:8px}.panel .material-mark i{width:75px;height:220px;border-radius:0;transform:skewY(-10deg);background:repeating-linear-gradient(90deg,#756342 0 10px,#aa9370 10px 17px,#d4c19b 17px 20px);box-shadow:9px 10px 0 #0000000b}.panel .material-mark i:nth-child(2){transform:skewY(-10deg) translateY(15px)}.panel .material-mark i:nth-child(3){transform:skewY(-10deg) translateY(30px)}.lights .material-mark i{width:94px;height:56px;border-radius:60px 60px 8px 8px;background:#736347;box-shadow:0 40px 42px 16px #f9e6a8;align-self:center}.lights .material-mark i:before{content:'';position:absolute;bottom:100%;left:50%;height:100px;width:1px;background:#a39473}.lights .material-mark i:nth-child(2){transform:translateY(38px);background:#ac874c}.lights .material-mark i:nth-child(3){display:none}.questions{padding:40px 0 60px;border-top:1px solid var(--line)}.question-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:45px}.question-grid>div{position:relative;padding-top:12px}.question-grid span{font-size:11px;opacity:.7}.question-grid h2{font-size:27px;margin:17px 0}.question-grid p{font-size:13px;color:var(--muted);line-height:1.85;margin:0}.section{padding:65px 0;border-top:1px solid var(--line)}.section-heading{display:flex;gap:30px;justify-content:space-between;align-items:start;margin-bottom:40px}.section-heading h2{max-width:690px}.guide-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.guide-card{border:1px solid var(--line);padding:33px 35px 53px;position:relative;text-decoration:none;transition:background .15s}.guide-card:hover{background:var(--soft)}.guide-card h3{max-width:430px;margin:26px 0 17px}.guide-card p{max-width:460px;line-height:1.8;color:var(--muted);font-size:13px;margin:0}.card-arrow{position:absolute;right:28px;bottom:20px;font-size:26px}.contact-band{background:var(--soft);padding:46px;display:flex;align-items:center;justify-content:space-between;gap:45px;margin:30px 0 70px}.contact-band h2{font-size:37px}.contact-band p:not(.eyebrow){font-size:13px;line-height:1.8;max-width:550px}.contact-band .button{white-space:nowrap}footer{padding-top:43px;padding-bottom:40px;display:grid;grid-template-columns:1fr .7fr;gap:30px 15%;border-top:1px solid var(--line)}footer p{font-size:12px;line-height:1.9;color:var(--muted);max-width:500px}.footer-links{display:flex;flex-direction:column;gap:17px;font-size:12px}.footer-links a{text-decoration:none}.footer-links span{color:var(--muted);font-size:10px}.footnote{grid-column:1/-1;max-width:none;font-size:10px;border-top:1px solid var(--line);padding-top:25px}.breadcrumbs{display:flex;gap:15px;font-size:11px;margin:29px 0;color:var(--muted)}.article-heading{padding:35px 0 20px;max-width:950px}.article-heading h1{font-size:clamp(39px,4.8vw,65px)}.article-heading .intro{max-width:790px}.article-body{max-width:900px}.lead{font-size:19px;line-height:1.9;max-width:900px;margin:20px 0 34px}.article-body h2,.prose h2{font-size:31px;margin:42px 0 23px}.table-wrap{overflow:auto;margin:40px 0}table{width:100%;border-collapse:collapse;text-align:left;font-size:14px;line-height:1.85}caption{text-align:left;font-size:11px;margin-bottom:13px;color:var(--muted)}th,td{padding:21px 18px;vertical-align:top;border-bottom:1px solid var(--line)}thead{background:var(--soft);font-size:11px}tbody th{width:24%;font-weight:600}.check-points{list-style:none;padding:0}.check-points li{padding:17px 0 17px 28px;border-bottom:1px solid var(--line);position:relative;font-size:14px;line-height:1.8}.check-points li:before{content:'□';position:absolute;left:0}.source-note{padding:29px;background:var(--soft);font-size:12px;line-height:1.85;margin:45px 0}.source-note h2{font-family:inherit;letter-spacing:0;font-size:15px;margin:0 0 15px}.source-note ul{padding-left:20px}.source-note p{color:var(--muted)}.prose{padding:60px 0 80px;max-width:950px}.prose p{line-height:1.9;font-size:15px}.prose p.lead{font-size:19px}.tool-heading{padding:55px 0 20px;max-width:920px}.tool-layout{display:grid;grid-template-columns:1.3fr 1fr;gap:60px;margin:25px 0 60px}.tool-form fieldset{margin:0;padding:0;border:0}.tool-form legend{font-size:15px;font-weight:600;margin-bottom:22px}.field{display:flex;flex-direction:column;gap:10px;font-size:13px;margin:0 0 20px}.field input,.field textarea,.field select{background:#ffffffa8;border:1px solid var(--line);border-radius:0;padding:14px;color:var(--ink);font-size:14px;min-height:47px;width:100%}.field textarea{min-height:120px;resize:vertical}.check-field{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:17px 0;border-top:1px solid var(--line);font-size:13px}.check-field select{width:48%;min-height:46px;padding:10px;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:12px}.tool-aside{background:var(--soft);padding:30px;align-self:start}.tool-aside h2{font-size:32px}.tool-aside p{font-size:13px;line-height:1.9}.tool-result{border:1px solid var(--line);padding:35px;background:#fff;margin:40px 0 70px}.tool-result h2{font-size:31px}.tool-result pre{white-space:pre-wrap;overflow-wrap:anywhere;font-family:inherit;font-size:14px;line-height:1.9}.tool-result [role=status]{font-size:12px;color:var(--muted)}.small{font-size:11px;line-height:1.8;color:var(--muted)}.direct-contact{display:flex;gap:25px;flex-wrap:wrap;font-size:13px;margin:25px 0}.badge{font-size:10px;border:1px solid var(--line);padding:5px 8px;display:inline-block;margin-bottom:20px}[hidden]{display:none!important}@media(max-width:1050px){nav{gap:15px}.nav-contact{display:none}.hero{gap:5%}.specimen{min-height:410px;padding:19px}.material-mark{min-height:280px}.section-heading h2{font-size:40px}}@media(max-width:760px){header,main,footer{padding-left:6%;padding-right:6%}header{min-height:99px;flex-wrap:wrap;gap:15px;padding-top:20px;padding-bottom:18px}.wordmark{font-size:26px}nav{gap:18px;font-size:11px;flex-wrap:wrap}nav a:nth-child(3){display:none}.hero{grid-template-columns:1fr;padding:42px 0 50px;gap:34px}h1{font-size:45px;letter-spacing:-.045em}.intro{font-size:15px}.specimen{min-height:355px}.material-mark{min-height:245px}.material-mark i{scale:.85}.questions{padding:28px 0 40px}.question-grid{grid-template-columns:1fr;gap:24px}.question-grid>div{border-bottom:1px solid var(--line);padding-bottom:23px}.question-grid h2{font-size:26px;margin:10px 0}.section{padding:40px 0}.section-heading{display:block;margin-bottom:29px}.section-heading .eyebrow{margin-bottom:17px}.section-heading h2{font-size:34px}.guide-grid{grid-template-columns:1fr;gap:17px}.guide-card{padding:27px 27px 50px}.guide-card h3{font-size:27px}.contact-band{padding:28px;display:block;margin-bottom:44px}.contact-band h2{font-size:32px}.contact-band .button{margin-top:15px;width:100%}footer{grid-template-columns:1fr;gap:25px}.footer-links{border-top:1px solid var(--line);padding-top:25px}.footnote{grid-column:auto}.article-heading{padding-top:28px}.article-heading h1{font-size:39px}.lead{font-size:17px}.article-body h2,.prose h2{font-size:28px}.table-wrap{margin:30px 0}th,td{padding:15px 11px}tbody th{width:28%}.tool-layout{grid-template-columns:1fr;gap:30px}.tool-heading{padding-top:40px}.tool-aside,.source-note{padding:25px}.check-field{flex-direction:column;align-items:stretch;gap:12px}.check-field select{width:100%}.tool-result{padding:24px}.actions .button{width:100%}.prose{padding:40px 0 60px}.prose h1{font-size:41px}}@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}*{transition:none!important}}@media print{header,footer,.review-strip,.button,.breadcrumbs,.actions,.contact-band{display:none!important}body{background:#fff;color:#000}main{padding:0}.tool-layout{display:none}.tool-result{border:0;padding:0}h1{font-size:28pt}.table-wrap{overflow:visible}table{font-size:10pt}.source-note{break-inside:avoid}a{text-decoration:none}}