.digital-book-reader{--book-accent:#356b75;min-height:100dvh;background:#edf1f1;padding-bottom:110px;color:var(--ink)}.book-reader-header{display:flex;align-items:center;gap:20px;max-width:1420px;margin:auto;padding:22px 30px;background:#fff;border-bottom:1px solid #dde5e5}.book-reader-header>div{flex:1 1;min-width:0;text-align:center}.book-reader-header span{font-size:10px;font-weight:700;letter-spacing:2px;color:var(--blue)}.book-reader-header h1{font-family:Lora,Georgia,serif;font-size:27px;margin:6px 0;line-height:1.3}.book-icon-button,.book-reader-header .page-back-button{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid #d8e3e5;border-radius:12px;color:var(--book-accent);background:#fff;cursor:pointer;flex-shrink:0}.book-reader-toolbar{max-width:1420px;margin:auto;padding:18px 30px;display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap}.book-reader-toolbar form,.book-reader-tools{display:flex;align-items:center;gap:9px}.book-reader-toolbar form>span,.book-reader-toolbar label{color:#657f89;font-size:13px}.book-reader-toolbar input{width:75px;min-height:40px;border:1px solid #d8e3e5;border-radius:10px;background:#fff;color:var(--ink);padding:8px 10px}.book-reader-toolbar form>button{border:0;border-radius:10px;min-height:40px;padding:8px 14px;background:var(--book-accent);color:#fff;cursor:pointer}.book-reader-tools>span{font-size:12px;color:#6b848b;min-width:35px;text-align:center}.book-reader-tools i{height:24px;width:1px;background:#d5e0e1;margin:0 6px}.book-icon-button:disabled{opacity:.4;cursor:default}.book-reading-note{max-width:1420px;margin:0 auto 14px;padding:0 30px;display:flex;align-items:center;justify-content:center;gap:7px;font-size:12px;color:#6a838b}.book-fullscreen-close{display:none}.book-stage{scroll-behavior:auto;max-width:1420px;overflow:auto;padding:8px 16px 36px;perspective:none;min-height:420px;-webkit-overflow-scrolling:touch}.book-stage,.pdf-flip-book{touch-action:pan-y;margin:auto}.pdf-flip-book{position:relative;filter:drop-shadow(0 12px 18px #1c34432b);-moz-user-select:none;user-select:none;-webkit-user-select:none}.pdf-flip-host,.pdf-flip-host .stf__wrapper,.pdf-flip-viewport{position:relative;height:100%}.pdf-flip-host .stf__block{overflow:hidden}.pdf-flip-sheet{overflow:hidden;background:#fff;border:1px solid #e0e4e1}.pdf-flip-sheet img{display:block;width:100%;height:100%;object-fit:contain;pointer-events:none}.pdf-flip-sheet:after{content:"";position:absolute;inset:0;pointer-events:none}.is-double .pdf-flip-sheet.--left:after{box-shadow:inset -12px 0 16px -12px #253b4b40}.is-double .pdf-flip-sheet.--right:after{box-shadow:inset 12px 0 16px -12px #253b4b40}.pdf-flip-blank{background:#f5f3ee}.pdf-flip-error{position:absolute;top:16px;left:16px;right:16px;z-index:50;padding:14px 18px;background:#fff9ef;border:1px solid #e3cfb3;border-radius:12px;color:#704e31;font-size:13px}.book-reader-tools .book-spread-option{display:flex;align-items:center;gap:8px;font-size:12px;white-space:nowrap;padding:10px 12px;border:1px solid #d8e3e5;background:#fff;border-radius:10px;cursor:pointer;margin-right:8px}.book-reader-tools .book-spread-option input{width:16px;height:16px;min-height:0;margin:0;accent-color:var(--blue);padding:0}.book-reading-note .book-spinner{width:14px;height:14px}.book-load-error,.book-loading{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:15px;min-height:430px;text-align:center;padding:20px}.book-loading strong{font-family:Lora,Georgia,serif;font-size:24px}.book-loading p{color:#6b848b;margin:0}.book-load-error a{color:var(--blue);text-decoration:underline}.book-spinner{width:26px;height:26px;border:2px solid #d5e1e3;border-top:2px solid var(--blue);border-radius:50%;display:inline-block;animation:book-spin .85s linear infinite}.book-reader-footer{position:fixed;bottom:0;left:0;right:0;z-index:31;gap:28px;padding:14px 24px max(14px,env(safe-area-inset-bottom));border-top:1px solid #dce5e5;box-shadow:0 -4px 24px #182d4108}.book-reader-footer,.book-reader-footer>button{display:flex;align-items:center;justify-content:center;background:#fff}.book-reader-footer>button{gap:8px;min-width:140px;border:1px solid #d7e3e5;border-radius:12px;padding:13px 18px;color:var(--blue);cursor:pointer;font-weight:700}.book-reader-footer>button:last-child{background:var(--blue);border-color:var(--blue);color:#fff}.book-reader-footer>button:disabled{opacity:.35;cursor:default}.book-reader-footer>div{text-align:center;min-width:110px;font-size:15px}.book-reader-footer strong>span{font-weight:400;color:#7b8e96}.book-progress{height:3px;width:110px;background:#e3eaec;border-radius:2px;margin-top:9px;overflow:hidden}.book-progress span{height:100%;display:block;background:#70a5a6;transition:width .4s}@keyframes book-spin{to{transform:rotate(1turn)}}body:has(.digital-book-reader) .mobile-bottom-nav,body:has(.digital-book-reader) .pwa-install-banner,body:has(.digital-book-reader) .site-footer,body:has(.digital-book-reader) .site-header{display:none}.digital-book-reader:-webkit-full-screen{overflow:auto;background:#edf1f1}.digital-book-reader.book-fullscreen,.digital-book-reader:fullscreen{overflow:auto;background:#edf1f1}.digital-book-reader.book-fullscreen{position:fixed;inset:0;z-index:1000}.digital-book-reader:-webkit-full-screen .book-fullscreen-close{display:inline-block;background:#fff;border:1px solid #d8e3e5;border-radius:8px;color:var(--blue);padding:6px 10px;margin-left:15px;cursor:pointer}.digital-book-reader.book-fullscreen .book-fullscreen-close,.digital-book-reader:fullscreen .book-fullscreen-close{display:inline-block;background:#fff;border:1px solid #d8e3e5;border-radius:8px;color:var(--blue);padding:6px 10px;margin-left:15px;cursor:pointer}@media(max-width:800px){body:has(.digital-book-reader){padding-bottom:0}.book-reader-header{padding:14px 16px;gap:10px}.book-reader-header h1{font-size:18px;margin:4px 0}.book-reader-header span{font-size:8px;letter-spacing:1px}.book-reader-toolbar{padding:14px 16px;gap:12px;justify-content:center}.book-reader-toolbar form,.book-reader-tools{width:100%;justify-content:center}.book-reader-tools .book-icon-button{width:38px;height:38px}.book-reader-tools i{margin:0 2px}.book-reading-note{font-size:11px;padding:0 14px;flex-wrap:wrap}.book-stage{padding:6px 16px 24px}.book-reader-footer{gap:10px;padding:12px 14px max(12px,env(safe-area-inset-bottom))}.book-reader-footer>button{min-width:0;flex:1 1;padding:13px 8px;font-size:13px}.book-reader-footer>div{min-width:80px}.book-progress{width:80px}.book-reader-header .book-icon-button,.book-reader-header .page-back-button{width:36px;height:36px}}@media(prefers-reduced-motion:reduce){.book-progress span{transition:none}}.book-stage[data-zoomed=true] .pdf-flip-book{cursor:-webkit-grab;cursor:grab}.book-stage[data-gesture=pan] .pdf-flip-book{cursor:-webkit-grabbing;cursor:grabbing}.book-stage[data-gesture=pinch] .pdf-flip-book{will-change:transform}