/* Narrow visible rail; touch and wheel interaction keep their full target. */
.product-tabs{scrollbar-width:auto;scrollbar-color:auto;padding-bottom:6px}
.product-tabs::-webkit-scrollbar{height:3px}
.product-tabs::-webkit-scrollbar-track{background:#d4ded129}
.product-tabs::-webkit-scrollbar-thumb{background:#a4bda6;border-radius:6px}
#molecularCanvas{touch-action:none}
body[data-variant=b] .molecular-stage{transition:opacity .35s,transform .65s var(--ease)}
body[data-variant=b] .molecular-stage[data-scanning=true] .molecular-orbit{opacity:.45}
.reading-layout{display:contents}
body[data-variant=a][data-state=product] .scene{overflow:visible}
body[data-variant=a][data-state=product] .reading-layout{display:grid;grid-template-columns:minmax(220px,27%) minmax(0,1fr);gap:3%;padding:12px 6% 80px 2%;align-items:start}
body[data-variant=a][data-state=product] .pencil-side{position:sticky;top:32px;left:auto;width:100%;height:min(620px,83vh);min-height:450px;transform:none;align-self:start}
body[data-variant=a][data-state=product] .product{margin:0;min-width:0;max-width:none}
.reading-chapter{min-height:68vh;padding:34px 0 54px;scroll-margin-top:28px;border-bottom:1px solid #b9cbbd80;outline:none}
.reading-chapter:last-child{border-bottom:0;padding-bottom:0}
.chapter-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:32px;color:#7a947e}
.chapter-heading>span{font-size:9px;letter-spacing:.17em}
.chapter-heading h2{font-size:12px;font-weight:400;margin:0;letter-spacing:.12em}
#chapter-overview{padding-top:24px;min-height:65vh}
.identity-layout{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;margin-top:48px}
.identity-portrait{min-width:0;text-align:center;border:1px solid #c5d4c23d;padding:24px 15px;background:#f9f9f344}
.identity-portrait img{width:100%;height:195px;object-fit:contain;mix-blend-mode:multiply}
.identity-portrait p{font-size:10px;line-height:1.7;color:#7c927f}
.identity-label{font-size:9px;letter-spacing:.16em;color:#829985}
.identity-details dl{font-size:12px;margin:24px 0}
.identity-details dl>div{display:flex;justify-content:space-between;gap:20px;border-bottom:1px solid #d2dccf;padding:13px 0}
.identity-details dt{color:#829581;flex:none}
.identity-details dd{margin:0;text-align:right;color:#496b51;overflow-wrap:anywhere}
.identity-caution{font-size:11px;line-height:1.9;color:#849380}
.source-register{margin:42px 0 28px;border-top:1px solid #bdceb9;padding-top:22px}
.source-register h3{font-size:20px;font-weight:400;color:#46664d;margin:12px 0 22px}
.source-register>div{display:grid;grid-template-columns:100px 1fr;gap:25px;padding:14px 0;border-top:1px solid #d2dccf;font-size:11px;line-height:1.8;color:#778e78}
.source-register>div>span{color:#4c7154}.source-register p{margin:0}
@media(max-width:1050px) and (min-width:651px){body[data-variant=a][data-state=product] .reading-layout{grid-template-columns:23% minmax(0,1fr);padding-right:4%;gap:3%}.identity-layout{gap:18px}.identity-details dl>div{display:block}.identity-details dd{text-align:left;margin-top:8px}}
@media(max-width:650px){
 body[data-variant=a][data-state=product] .reading-layout{display:flex;flex-direction:column;padding:0 7% 50px;gap:0}
 body[data-variant=a][data-state=product] .pencil-side{position:sticky;top:0;width:100%;height:96px;min-height:96px;z-index:12;margin:0 0 22px;background:#f6f5eff5;border-bottom:1px solid #b7cdbb}
 body[data-variant=a][data-state=product] .product{margin:0;width:100%}
 .dna-map-kicker,.dna-route,.dna-map-note,.pencil-orbit{display:none}
 .dna-map{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;align-items:center}
 .dna-node,.dna-node-one,.dna-node-two,.dna-node-three{position:relative;top:auto;left:auto;width:auto;min-height:58px;padding:7px 6px;box-shadow:none}
 .dna-node strong{font-size:11px}.dna-node small{font-size:8px;line-height:1.5}.dna-node span,.dna-node:before{display:none}
 body[data-variant=a] .pencil{width:100%;height:96px;opacity:.09;top:0}
 .chapter-heading{gap:10px;margin-bottom:24px}.chapter-heading>span{font-size:8px;letter-spacing:.08em}.chapter-heading h2{font-size:10px}
 .reading-chapter{min-height:0;padding:30px 0 44px;scroll-margin-top:116px}
 #chapter-overview{min-height:0;padding-top:20px}
 .identity-layout{grid-template-columns:1fr;gap:12px;margin-top:22px}
 .identity-portrait img{height:170px}.identity-details dl{margin:15px 0}
 .source-register{margin-top:28px}.source-register>div{grid-template-columns:70px 1fr;gap:12px}
 body[data-variant=a] .specs{grid-template-columns:1fr;gap:0}
 body[data-variant=a] .specs>div{padding:12px 0}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.molecular-stage{transition:none!important}}
@media(min-width:651px){.reading-chapter:last-child{min-height:calc(100svh - 145px)}}
body[data-variant=a][data-state=product] .scene{overflow-x:clip;overflow-y:visible}