/* LUMA81 / ALU-39KC only: use the original coating face, without its baked photo backdrop.
   Same 1.28 face crop as the approved aluminium sample page; source colours stay untouched. */
#book article.paper[data-luma-frame-surface="20261021"] .collection-material-sample[data-library-texture-id="ALU-39KC"] > .luma-frame-surface{display:block;position:relative;width:100%;height:0;min-height:0;flex:1 1 0;overflow:hidden;border-radius:.8cqw;isolation:isolate;background:transparent;box-shadow:0 .14cqw .03cqw #28272365,0 .28cqw .08cqw #625b4c70,0 .52cqw .5cqw -.12cqw #50402b38,0 .8cqw 1.05cqw -.25cqw #57462e20}
#book article.paper[data-luma-frame-surface="20261021"] .luma-frame-surface > img{display:block;width:100%;height:100%;min-height:0;max-width:none;object-fit:cover;object-position:center;transform:scale(1.28);transform-origin:center;border:0;border-radius:0;box-shadow:none;background:transparent}
#book article.paper[data-luma-frame-surface="20261021"] .luma-frame-surface::after{content:"";position:absolute;inset:0;pointer-events:none;border-radius:inherit;border:.065cqw solid #423f363b;box-shadow:inset .12cqw .14cqw .07cqw #ffffffa3,inset -.1cqw -.14cqw .08cqw #211f1b63}