.hero{grid-template-columns:minmax(0,7fr) minmax(0,15fr);gap:26px;align-items:center}.assembly-hero{border:1px solid var(--line);background:var(--sheet)}.assembly-caption{display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--line);font-size:14px}.assembly-caption>span:last-child{margin-left:auto;font-family:var(--mono);font-size:10px;color:var(--muted)}#assembly-viewer{width:100%;height:700px;border:0;display:block}.assembly-note{margin:0;padding:12px 16px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}#purchasing{border-top:1px solid var(--line);padding:32px 28px;scroll-margin-top:20px}.assembly-flow{max-width:850px;margin:0 auto 28px}.assembly-flow h2{font-size:28px;line-height:1.2;margin:12px 0}.assembly-flow p{font-size:15px}.flow-label{font-family:var(--mono);font-size:11px!important;color:var(--mark);letter-spacing:.04em}.concept-note{color:var(--muted)}#part-draft{border:1px dashed var(--line);padding:16px 20px;margin:24px 0;background:var(--sheet)}#part-draft:focus{outline:2px solid var(--mark);outline-offset:4px}#part-draft h3{margin:6px 0 18px}#part-draft dl{display:flex;gap:30px;flex-wrap:wrap}#part-draft dt{color:var(--muted);font-size:12px}#part-draft dd{margin:0;font-family:var(--mono);font-size:14px}#draft-quantity{width:80px;margin-left:12px;padding:6px;color:var(--ink);background:var(--fill);border:1px solid var(--line)}.purchasing-demo{max-width:1000px;margin:auto}[hidden]{display:none!important}
@media(max-width:980px){.hero{grid-template-columns:1fr}.hero-text{max-width:680px}#assembly-viewer{height:680px}}
@media(max-width:600px){#purchasing{padding:26px 14px}.assembly-caption{flex-wrap:wrap;padding:10px;font-size:12px}.assembly-caption>span:last-child{margin-left:0}#assembly-viewer{height:660px}.assembly-flow h2{font-size:24px}#part-draft{padding:14px}}

.hero{grid-template-columns:minmax(0,10fr) minmax(0,15fr);gap:10px;padding-top:24px;padding-bottom:24px}.hero-text{position:relative;z-index:1}.hero h1{font-size:clamp(42px,4.2vw,60px);max-width:11ch;text-wrap:initial;line-height:1.06}.hero .lede{max-width:35ch;font-size:17px;line-height:1.65}.hero .hint{max-width:36ch}.assembly-hero{border:0;background:transparent}.assembly-caption{padding:8px 12px;border:0;gap:12px;font:11px var(--mono);color:var(--muted)}.assembly-caption .sect{font-family:var(--mono);color:var(--ink)}.assembly-caption>span:last-child{font-size:10px}#assembly-viewer{height:730px;background:transparent}
@media(max-width:980px){.hero{grid-template-columns:1fr;gap:24px}.hero h1{max-width:17ch}.hero .lede{max-width:54ch}.hero .hint{max-width:50ch}#assembly-viewer{height:700px}}
@media(max-width:600px){.hero{gap:18px}.hero h1{font-size:clamp(38px,10vw,52px);max-width:12ch}.hero .lede{font-size:16px}#assembly-viewer{height:620px}.assembly-caption{padding:8px 0;gap:8px;font-size:10px}.assembly-caption>span:last-child{margin-left:auto;font-size:9px}}