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currentColor;border-radius:7px;opacity:0.8;background:var(--spine-bg,transparent);max-height:32%;overflow:hidden;white-space:nowrap;z-index:2;font-family:-apple-system,sans-serif;pointer-events:none}.msbs-faceout__spine .msbs-book__spine-cat{font-size:8px;max-height:28%}.msbs-book__spine-author{position:absolute;left:0;right:0;bottom:8px;writing-mode:vertical-rl;text-orientation:mixed;display:flex;justify-content:center;font-size:9px;opacity:0.72;font-family:-apple-system,sans-serif;letter-spacing:0.04em;max-height:90px;overflow:hidden}.msbs-book__cover{position:absolute;top:0;left:var(--spine-w,46px);width:var(--cover-w,250px);height:100%;transform-origin:left center;transform:rotateY(90deg);backface-visibility:hidden;border-radius:2px 4px 4px 2px;background:var(--cover-bg,#3d5a80);color:var(--cover-fg,#fff);box-shadow:inset 0 0 0 1px rgba(255,255,255,0.06),6px 8px 26px -6px rgba(20,16,12,0.55);overflow:hidden}.msbs-book__cover-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}.msbs-book__cover-fallback{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:space-between;padding:22px 20px;background:linear-gradient(160deg,rgba(255,255,255,0.10),rgba(0,0,0,0.14)),var(--cover-bg,#3d5a80)}.msbs-book__cover-fallback .cf-top{font-size:10px;letter-spacing:0.22em;text-transform:uppercase;opacity:0.7}.msbs-book__cover-fallback .cf-title{font-family:"Georgia","Noto Serif KR",serif;font-size:clamp(17px,1.7vw,25px);font-weight:700;line-height:1.14;letter-spacing:-0.01em}.msbs-book__cover-fallback .cf-author{font-size:12px;opacity:0.82;letter-spacing:0.02em}.msbs-book__cover::after{content:"";position:absolute;inset:0;background:linear-gradient(105deg,rgba(255,255,255,0.20) 0%,transparent 30%,transparent 88%,rgba(0,0,0,0.16) 100%);pointer-events:none}.msbs-book.is-open-hint .msbs-book__cover{box-shadow:inset 0 0 0 1px rgba(255,255,255,0.14),0 0 0 1px rgba(255,235,200,0.28),10px 14px 40px -8px rgba(20,16,12,0.62),0 0 34px -6px rgba(255,220,160,0.35);transition:box-shadow .25s ease}.msbs-book.is-open-hint .msbs-book__spine{box-shadow:inset 2px 0 3px rgba(255,255,255,0.28),inset -3px 0 6px rgba(0,0,0,0.30)}.msbs-book__ribbon{position:absolute;top:12px;left:-32px;z-index:3;transform:rotate(-45deg);background:linear-gradient(180deg,#f0563c 0%,#d3301f 58%,#b02315 100%);color:#fff;font-size:9px;font-weight:800;letter-spacing:0.22em;padding:4px 36px;border-top:1px solid rgba(255,230,180,0.85);border-bottom:1px solid rgba(120,20,10,0.6);text-shadow:0 1px 1px rgba(90,10,5,0.5);box-shadow:0 4px 10px rgba(60,10,5,0.35);pointer-events:none;opacity:0;transition:opacity .25s ease}.msbs-book.is-open-hint .msbs-book__ribbon{opacity:1}.msbs-book__newdot{position:absolute;top:9px;left:50%;width:8px;height:8px;margin-left:-4px;border-radius:50%;background:radial-gradient(circle at 32% 28%,#ff9d7e,#e2432c 70%);box-shadow:0 0 0 1.5px rgba(255,214,150,0.9),0 0 0 3px rgba(0,0,0,0.18),0 2px 5px rgba(0,0,0,0.35);z-index:4;animation:msbs-pulse 2.4s ease-in-out infinite}@keyframes msbs-pulse{0%,100%{transform:scale(1);box-shadow:0 0 0 1.5px rgba(255,214,150,0.9),0 0 0 3px rgba(0,0,0,0.18),0 2px 5px rgba(0,0,0,0.35)}50%{transform:scale(1.25);box-shadow:0 0 0 1.5px rgba(255,214,150,1),0 0 0 6px rgba(226,67,44,0.18),0 2px 6px rgba(0,0,0,0.35)}}.msbs-book--faceout{margin:0 6px 0 22px;perspective:1200px;perspective-origin:42% 45%;transform-style:flat}.msbs-faceout{position:relative;width:100%;height:100%;transform-style:preserve-3d;transform-origin:center center;transform:rotateY(var(--fo-rot,28deg)) rotateX(1.5deg);transition:transform .08s linear}.msbs-faceout__front{position:absolute;inset:0;border-radius:1px 4px 4px 1px;background:#eee;overflow:hidden;backface-visibility:hidden;box-shadow:inset 0 0 0 1px rgba(0,0,0,0.08),0 22px 40px -18px rgba(20,16,12,0.6);border-right:2px solid rgba(255,255,255,0.5)}.msbs-faceout__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}.msbs-faceout__fallback{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:space-between;padding:20px 18px;background:linear-gradient(160deg,rgba(255,255,255,0.10),rgba(0,0,0,0.14)),var(--cover-bg,#3d5a80)}.msbs-faceout__fallback .cf-top{font-size:10px;letter-spacing:0.22em;text-transform:uppercase;opacity:0.7}.msbs-faceout__fallback .cf-title{font-family:"Georgia","Noto Serif KR",serif;font-size:clamp(16px,1.6vw,23px);font-weight:700;line-height:1.14}.msbs-faceout__fallback .cf-author{font-size:12px;opacity:0.82}.msbs-faceout__gloss{position:absolute;inset:0;background:linear-gradient(105deg,rgba(255,255,255,0.22) 0%,transparent 26%,transparent 86%,rgba(0,0,0,0.14) 100%);pointer-events:none}.msbs-faceout__spine{position:absolute;top:0;right:100%;height:100%;width:var(--fo-thick,26px);transform-origin:right 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