:root{--cover-color:#b9afc2;--black:#000;--white:#fff;--serif:'Times New Roman','Songti SC','STSong',serif;--sans:Arial,'PingFang 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/* Scroll-linked depth: only the visible spreads are painted by JavaScript. */
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.sheet .photo-slot:nth-child(2){translate:0 calc(var(--page-shift,0px) * -.12)}
.sheet .photo-slot:nth-child(3){translate:0 calc(var(--page-shift,0px) * -.2)}
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/* Keep an explicit route to the cover on every page and overlay. */
.dialog-actions{display:flex;align-items:center;gap:24px;font-size:14px;white-space:nowrap}.home-link{white-space:nowrap}@media(max-width:600px){.book-tools>div{gap:14px}.dialog-actions{gap:14px;font-size:12px}.viewer-top{font-size:12px}}

.book-brand{white-space:nowrap}@media(max-width:420px){.book-tools{gap:12px}.book-brand{font-size:14px}.book-tools>div{gap:10px;font-size:11px}}