.header{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;padding-top:calc(14px + var(--safe-top));position:sticky;top:0;z-index:50;background:#1a1a2ecc;backdrop-filter:blur(20px) saturate(1.5);-webkit-backdrop-filter:blur(20px) saturate(1.5);border-bottom:1px solid var(--border);animation:fadeInDown .3s ease-out}.header-left{display:flex;align-items:center;gap:12px}.header-logo{width:36px;height:36px;flex-shrink:0}.header-logo svg{width:100%;height:100%}.header-brand{display:flex;flex-direction:column}.header-title{font-size:1.15rem;font-weight:700;letter-spacing:-.02em;background:linear-gradient(135deg,var(--accent),#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.2}.header-subtitle{font-size:.72rem;color:var(--text-secondary);font-weight:400}.header-actions{display:flex;align-items:center;gap:10px}.sort-select-wrap{position:relative}.sort-select{-moz-appearance:none;appearance:none;-webkit-appearance:none;background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-sm);color:var(--text);padding:8px 32px 8px 12px;font-family:inherit;font-size:.82rem;cursor:pointer;transition:all var(--transition-fast);outline:none}.sort-select:focus{border-color:var(--accent)}.sort-icon{position:absolute;right:10px;top:50%;transform:translateY(-50%);font-size:.75rem;color:var(--text-secondary);pointer-events:none}.view-toggle{font-size:1.1rem}.upload-btn{padding:8px 16px;font-size:.85rem;gap:6px}.upload-icon{font-size:1.2rem;line-height:1;font-weight:300}@media(max-width:500px){.header{padding:12px 16px}.upload-text{display:none}.upload-btn{padding:8px 12px}.sort-select{max-width:120px}}.book-card{position:relative;border-radius:var(--radius-md);overflow:hidden;cursor:pointer;transition:transform var(--transition-fast),box-shadow var(--transition-fast);-webkit-user-select:none;user-select:none}.book-card:hover{transform:translateY(-4px) scale(1.02);box-shadow:var(--shadow-lg)}.book-card.pressing{transform:scale(.96);transition:transform .1s ease-out}.book-cover{position:relative;aspect-ratio:2 / 3;overflow:hidden;border-radius:var(--radius-md);background:var(--surface);box-shadow:var(--shadow-md)}.book-cover img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition-slow)}.book-card:hover .book-cover img{transform:scale(1.05)}.book-cover-placeholder{width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;background:linear-gradient(135deg,var(--surface),var(--bg));padding:16px}.placeholder-letter{font-size:2.5rem;font-weight:700;color:var(--accent);opacity:.6}.placeholder-title{font-size:.72rem;color:var(--text-secondary);text-align:center;line-height:1.3;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.book-progress-overlay{position:absolute;bottom:0;left:0;right:0;height:3px;background:#0006}.book-progress-fill{height:100%;background:var(--accent);border-radius:0 2px 0 0;transition:width var(--transition-normal)}.book-menu-trigger{position:absolute;top:6px;right:6px;width:28px;height:28px;border:none;border-radius:50%;background:#00000080;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);color:#fff;font-size:1rem;cursor:pointer;opacity:0;transition:opacity var(--transition-fast);display:flex;align-items:center;justify-content:center}.book-card:hover .book-menu-trigger{opacity:1}@media(hover:none){.book-menu-trigger{opacity:.7}}.book-meta{padding:10px 4px 4px}.book-title{font-size:.85rem;font-weight:600;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--text);margin-bottom:2px}.book-author{font-size:.72rem;color:var(--text-secondary);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}.book-menu{position:absolute;top:40px;right:8px;min-width:150px;padding:6px;border-radius:var(--radius-sm);z-index:20;animation:scaleIn .15s 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img{width:100%;height:100%;object-fit:cover}.book-cover-placeholder-list{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--surface),var(--bg));color:var(--accent);font-size:1.2rem;font-weight:700}.book-info-list{flex:1;min-width:0}.book-title-list{font-size:.92rem;font-weight:600;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:2px}.book-author-list{font-size:.78rem;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.book-progress-bar-list{margin-top:6px;height:3px;background:var(--border);border-radius:2px;max-width:120px}.book-progress-fill-list{height:100%;background:var(--accent);border-radius:2px}.book-menu-btn{width:32px;height:32px;border:none;border-radius:50%;background:transparent;color:var(--text-secondary);font-size:1.2rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast);flex-shrink:0}.book-menu-btn:hover{background:var(--glass-bg);color:var(--text)}.settings-panel{position:fixed;bottom:0;left:0;right:0;max-height:80vh;overflow-y:auto;z-index:110;border-radius:var(--radius-xl) var(--radius-xl) 0 0;background:#0f0f19f2;backdrop-filter:blur(30px) saturate(1.5);-webkit-backdrop-filter:blur(30px) saturate(1.5);animation:slideInUp var(--transition-slow) ease-out;padding-bottom:calc(20px + var(--safe-bottom))}.animate-slide-in-up{animation:slideInUp var(--transition-slow) ease-out}.settings-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px 12px;position:sticky;top:0;z-index:5;background:inherit}.settings-title{font-size:1.1rem;font-weight:600}.settings-body{padding:0 24px 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var(--transition-normal);box-shadow:var(--shadow-sm)}.font-btn-wrapper{position:relative}.font-delete-btn{position:absolute;top:-6px;right:-6px;width:20px;height:20px;border-radius:50%;border:none;background:#f44;color:#fff;font-size:10px;cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:.8;transition:opacity .2s;z-index:2}.font-delete-btn:hover{opacity:1}.font-upload-btn{border-style:dashed!important;color:var(--accent)!important;font-weight:600}.bg-image-controls{display:flex;flex-direction:column;gap:12px}.bg-preview-row{display:flex;align-items:center;gap:10px}.bg-preview-thumb{width:48px;height:48px;border-radius:var(--radius-sm);background-size:cover;background-position:center;border:1px solid var(--border);flex-shrink:0}.library-page{flex:1;display:flex;flex-direction:column;position:relative}.library-page.drag-over{pointer-events:none}.library-content{flex:1;padding:24px;overflow-y:auto}.search-section{padding:16px 24px 0}.search-bar{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:var(--radius-lg);background:#1a1a2e99;border:1px solid var(--glass-border);transition:all var(--transition-fast)}.search-bar:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px #7c5cfc1f,0 4px 20px #00000026;background:#1a1a2ed9}.search-bar-icon{width:20px;height:20px;color:var(--text-secondary);flex-shrink:0;opacity:.6}.search-bar:focus-within .search-bar-icon{color:var(--accent);opacity:1}.search-input{flex:1;background:none;border:none;outline:none;color:var(--text);font-family:inherit;font-size:.92rem;padding:6px 0}.search-input::placeholder{color:var(--text-secondary);opacity:.5}.search-clear-btn{background:none;border:none;color:var(--text-secondary);cursor:pointer;font-size:.85rem;padding:4px 8px;border-radius:var(--radius-sm);transition:all var(--transition-fast);opacity:.5}.search-clear-btn:hover{opacity:1;color:var(--text);background:#ffffff0d}.search-btn{padding:8px 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img{width:100%;height:100%;object-fit:cover}.search-result-no-cover{width:100%;height:100%;display:flex;align-items:center;justify-content:center;font-size:1.8rem;background:linear-gradient(135deg,#7c5cfc26,#5c3cdc1a)}.search-result-info{flex:1;display:flex;flex-direction:column;min-width:0}.search-result-title{font-size:.9rem;font-weight:600;color:var(--text);line-height:1.3;margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.search-result-author{font-size:.78rem;color:var(--text-secondary);margin-bottom:4px}.search-result-genre{font-size:.72rem;color:var(--accent);opacity:.7;margin-bottom:auto}.search-download-btn{display:flex;align-items:center;gap:6px;padding:7px 14px;margin-top:8px;background:linear-gradient(135deg,var(--accent),#5c3cdc);border:none;border-radius:var(--radius-sm);color:#fff;font-family:inherit;font-size:.78rem;font-weight:600;cursor:pointer;transition:all var(--transition-fast);align-self:flex-start}.search-download-btn:hover:not(:disabled){filter:brightness(1.15);transform:translateY(-1px);box-shadow:0 4px 12px #7c5cfc59}.search-download-btn:disabled{opacity:.5;cursor:not-allowed;transform:none;filter:none}.search-download-btn.downloading{background:#7c5cfc33;border:1px solid rgba(124,92,252,.3);padding:6px 12px}.download-icon{font-size:1rem;font-weight:700;line-height:1}.search-pagination{display:flex;align-items:center;justify-content:center;gap:16px;margin-top:24px;padding:16px 0}.pagination-btn{padding:8px 20px;background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-sm);color:var(--text);font-family:inherit;font-size:.82rem;font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.pagination-btn:hover{border-color:var(--accent);background:#7c5cfc1a}.pagination-info{font-size:.8rem;color:var(--text-secondary)}.search-library-divider{display:flex;align-items:center;gap:16px;margin:32px 0 24px}.search-library-divider:before,.search-library-divider:after{content:"";flex:1;height:1px;background:linear-gradient(90deg,transparent,var(--border),transparent)}.search-library-divider span{font-size:.82rem;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.08em;white-space:nowrap}.library-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:24px 16px}@media(min-width:700px){.library-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:28px 20px}}@media(min-width:1024px){.library-grid{grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:32px 24px}}.library-list{display:flex;flex-direction:column;gap:4px}.library-empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:48px 24px;gap:16px;min-height:50vh}.empty-illustration{animation:float 4s ease-in-out infinite;margin-bottom:8px}.empty-title{font-size:1.4rem;font-weight:600;color:var(--text)}.empty-desc{font-size:.9rem;color:var(--text-secondary);line-height:1.6;max-width:320px}.library-loading{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;min-height:50vh;color:var(--text-secondary)}.spinner{width:36px;height:36px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.upload-overlay{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;z-index:200;background:#00000080;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}.upload-modal{display:flex;flex-direction:column;align-items:center;gap:16px;padding:32px 48px;border-radius:var(--radius-lg);color:var(--text);font-weight:500}.drag-overlay{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;z-index:300;background:#0009;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);pointer-events:none}.drag-content{display:flex;flex-direction:column;align-items:center;gap:16px;padding:48px;border:2px dashed var(--accent);border-radius:var(--radius-xl);color:var(--text);font-size:1.1rem;font-weight:500}.drag-icon{font-size:3rem;animation:float 2s ease-in-out infinite}@media(max-width:500px){.search-section{padding:12px 16px 0}.search-bar{padding:6px 10px}.search-btn{padding:8px 14px;font-size:.78rem}.search-results-grid{grid-template-columns:1fr}.library-content{padding:16px}}.reader-top-bar,.reader-bottom-bar{position:fixed;left:0;right:0;z-index:80;display:flex;align-items:center;transition:transform var(--transition-normal),opacity 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rgba(255,255,255,.08);width:38px;height:38px;font-size:1.15rem;flex-shrink:0}.reader-top-info{flex:1;min-width:0;display:flex;flex-direction:column;align-items:center;gap:2px}.reader-book-title{font-size:.85rem;font-weight:600;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}.reader-chapter{font-size:.72rem;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}.reader-top-actions{display:flex;gap:8px;flex-shrink:0}.reader-nav-btn{width:40px;height:40px;border:none;border-radius:var(--radius-sm);background:#ffffff0f;color:var(--text);font-size:1.6rem;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all var(--transition-fast);line-height:1}.reader-nav-btn:hover{background:#ffffff1a}.reader-nav-btn:active{transform:scale(.9)}.reader-progress-section{flex:1;display:flex;flex-direction:column;gap:6px}.reader-progress-bar{width:100%;height:4px;background:#ffffff1a;border-radius:2px;overflow:hidden}.reader-progress-fill{height:100%;background:var(--accent);border-radius:2px;transition:width var(--transition-normal);position:relative}.reader-progress-fill:after{content:"";position:absolute;right:0;top:-2px;width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px #7c5cfc80}.reader-progress-info{display:flex;justify-content:space-between;font-size:.72rem;color:var(--text-secondary)}.reader-page-info{color:var(--text-secondary)}.toc-panel{position:fixed;top:0;left:0;bottom:0;width:min(340px,85vw);z-index:110;display:flex;flex-direction:column;background:#0f0f19f2;backdrop-filter:blur(30px) saturate(1.5);-webkit-backdrop-filter:blur(30px) saturate(1.5);animation:slideFromLeft var(--transition-slow) ease-out;border-right:1px solid var(--border)}@keyframes slideFromLeft{0%{transform:translate(-100%);opacity:0}to{transform:translate(0);opacity:1}}.toc-header{display:flex;align-items:center;justify-content:space-between;padding:20px 20px 16px;padding-top:calc(20px + var(--safe-top));border-bottom:1px solid var(--border);flex-shrink:0}.toc-title{font-size:1.05rem;font-weight:600}.toc-body{flex:1;overflow-y:auto;padding:8px 0}.toc-item{display:flex;align-items:center;justify-content:space-between;width:100%;padding:12px 20px;border:none;background:transparent;color:var(--text);font-family:inherit;font-size:.88rem;cursor:pointer;text-align:left;transition:all 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