.ebook-page{max-width:1400px;padding-top:65px}.ebook-page .page-heading{margin-bottom:32px}.ebook-page .page-heading h1{font-size:32px}.book-viewer{background:radial-gradient(ellipse at center,#e9e1d5,#d5c9b8);padding:36px 40px 18px;border-radius:12px;outline-offset:5px}.book-stage{position:relative;width:min(100%,1050px);margin:auto;perspective:2300px}.book-spread{display:flex;aspect-ratio:5198/3308;filter:drop-shadow(0 12px 16px #392b2840)}.book-page{position:relative;width:50%;height:100%;background:#fff;overflow:hidden}.book-page img{display:block;width:100%;height:100%;object-fit:contain;user-select:none}.book-blank{background:transparent}.book-spread .book-page:first-child:not(.book-blank)::after,.book-spread .book-page:last-child:not(.book-blank)::after{content:'';position:absolute;inset:0;pointer-events:none}.book-spread .book-page:first-child::after{background:linear-gradient(to left,#30221d30,transparent 5%)}.book-spread .book-page:last-child::after{background:linear-gradient(to right,#30221d28,transparent 5%)}.book-turn{display:none;position:absolute;top:0;bottom:0;width:50%;transform-style:preserve-3d;z-index:2;pointer-events:none}.book-turn.turn-next{display:block;left:50%}.book-turn.turn-prev{display:block;left:0}.book-strip{position:absolute;top:0;bottom:0;transform-style:preserve-3d;will-change:transform}.turn-next .book-strip{left:0;transform-origin:left center}.turn-prev .book-strip{right:0;transform-origin:right center}.book-strip-face{position:absolute;inset:0;background-color:transparent;background-repeat:repeat-x;backface-visibility:hidden;-webkit-backface-visibility:hidden}.book-strip-back{transform:rotateY(180deg)}.book-strip-face::after{content:'';position:absolute;inset:0;background:#291c12;opacity:var(--paper-shade,0);pointer-events:none}.book-cast-shadow{display:none;position:absolute;top:0;bottom:0;width:50%;background:linear-gradient(90deg,#291c12,#291c12aa);z-index:1;pointer-events:none}.book-cast-shadow.turn-next{display:block;left:50%;transform-origin:left}.book-cast-shadow.turn-prev{display:block;left:0;transform-origin:right}.book-controls{display:flex;justify-content:center;align-items:center;gap:22px;margin-top:26px}.book-controls button{width:48px;height:48px;border-radius:50%;background:#fff;color:#573c29;font-size:24px;box-shadow:0 2px 8px #392b2820}.book-controls button:disabled{opacity:.3;cursor:default}.book-controls button:focus-visible{outline:3px solid #573c29;outline-offset:3px}.book-status{min-width:100px;text-align:center;font-variant-numeric:tabular-nums;color:#493527}.book-hint{text-align:center;font-size:13px;line-height:1.6;margin-top:14px;color:#655649}.book-viewer{touch-action:pan-y;overflow:hidden}.book-viewer button{touch-action:manipulation}@media(max-width:700px){.ebook-page{padding:40px 12px}.ebook-page .page-heading h1{font-size:25px}.book-viewer{padding:18px 12px 14px}.book-stage{max-width:430px}.book-spread{aspect-ratio:2599/3308}.book-page{width:100%}.book-turn,.book-cast-shadow{width:100%}.book-turn.turn-next,.book-cast-shadow.turn-next{left:0}.book-controls{margin-top:20px}.book-hint{font-size:12px}.book-spread .book-page::after{display:none}}@media(prefers-reduced-motion:reduce){.book-turn{animation:none!important}}

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