.albumStory.albumBook{--album-page:min(86vw, calc((100dvh - 150px) * 3 / 4));--album-page-height:calc(var(--album-page) * 4 / 3);background:radial-gradient(at 50% 42%,#78543459,#20160f00 70%);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:14px;min-height:0;padding:14px 0 12px;display:flex}.bookStage{width:var(--album-page);height:var(--album-page-height);perspective:2000px;perspective-origin:20%;touch-action:pan-y;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;outline:none;position:relative}.bookStage:focus-visible{outline-offset:8px;outline:2px solid #b9707f}.bookBlock{background:#efe2c8;border-radius:3px 5px 5px 3px;position:absolute;inset:0}.bookStage:before{filter:blur(14px);content:"";background:#00000073;border-radius:12px;position:absolute;inset:2% -4% -3% -2%}.bookStage.isClosed .bookBlock,.bookStage.isAtBack .bookBlock{border-radius:7px 18px 18px 7px}.bookSheet.albumStorySlide{transform-origin:0;width:auto;height:auto;transform-style:preserve-3d;will-change:transform;background:0 0;flex:none;place-content:normal;display:block;position:absolute;inset:0;overflow:visible}.bookSheet.isUnder{z-index:2}.bookSheet.isCurrent{z-index:3}.bookSheet.isBefore{z-index:4}.bookSheetFront,.bookSheetBack{-webkit-backface-visibility:hidden;backface-visibility:hidden;position:absolute;inset:0}.bookSheet .albumStoryCover{background:0 0}.bookSheetShade{z-index:20;pointer-events:none;opacity:var(--turn-shade,0);background:linear-gradient(90deg,#140c060d,#140c068c);border-radius:6px 3px 3px 6px;position:absolute;inset:0}.bookSheetBack{background:linear-gradient(270deg,#dccbaa,#f1e6cf 22%,#efe2c8 80%,#e2d2b3);border-radius:3px 6px 6px 3px;transform:rotateY(180deg);box-shadow:inset 0 0 40px #7052302e}.bookSheetBack.isBoard{background:#e8dcc4 repeating-linear-gradient(45deg,#76503f14 0 2px,#0000 2px 9px);border-radius:18px 7px 7px 18px;box-shadow:inset 0 0 0 9px #76503f}.bookControls{color:#e9dcc6;letter-spacing:.02em;align-items:center;gap:18px;font:13px/1.2 system-ui,-apple-system,Segoe UI,sans-serif;display:flex}.bookControls span{text-align:center;opacity:.8;min-width:9em}.bookControls button{width:40px;height:40px;color:inherit;cursor:pointer;background:0 0;border:1px solid #ffeed64d;border-radius:50%;place-items:center;padding:0 0 3px;font:26px/1 Georgia,serif;display:grid}.bookControls button:disabled{opacity:.25;cursor:default}@media (prefers-reduced-motion:reduce){.bookSheet{transition:none!important}}