*{box-sizing:border-box;margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif}html,body,#root{background-color:var(--bg);width:100%;height:100%;overflow:hidden}.app-container{background:var(--card-bg);flex-direction:column;width:100%;max-width:100%;height:100%;margin:0 auto;display:flex;position:relative;overflow:hidden}.top-nav,.detail-header{z-index:100;flex-shrink:0;justify-content:space-between;height:56px;padding:0 16px;position:relative;box-shadow:0 2px 8px #00000026}.top-nav,.menu-header,.detail-header{color:#fff;background:#0f172a;border-bottom:1px solid #ffffff0d;align-items:center;display:flex}.nav-btn{color:#fff;cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:none;border-radius:8px;justify-content:center;align-items:center;min-width:44px;min-height:44px;padding:8px;transition:background .2s;display:flex}.nav-btn:active{background:#ffffff26}.nav-main{flex:1;min-width:0;display:flex}.nav-title{letter-spacing:.2px;color:#fff;white-space:nowrap;text-overflow:ellipsis;font-size:1em;font-weight:600;overflow:hidden}.side-menu-overlay{opacity:0;visibility:hidden;z-index:90;background:#00000080;transition:all .3s;position:fixed;inset:0}.side-menu-overlay.open{opacity:1;visibility:visible}.side-menu{background:var(--card-bg);z-index:95;width:280px;max-width:85vw;box-shadow:var(--shadow);pointer-events:none;-webkit-backdrop-filter:blur();backdrop-filter:blur();flex-direction:column;transition:transform .3s cubic-bezier(.4,0,.2,1);display:flex;position:absolute;top:56px;bottom:0;left:0;overflow-y:auto;transform:translate(-101%)}.side-menu.open{pointer-events:auto;transform:translate(0)}.menu-header{gap:12px;padding:12px}.menu-items{flex:1;padding:12px 0;list-style:none}.menu-item{color:var(--text-h);-webkit-tap-highlight-color:transparent;align-items:center;gap:16px;min-height:52px;padding:16px 20px;font-size:.89em;font-weight:500;text-decoration:none;transition:background .2s;display:flex}.menu-item:active{background:var(--border)}.menu-item svg{color:var(--text)}.main-content{-webkit-overflow-scrolling:touch;flex:1;overflow:hidden auto}.page-content{padding-bottom:32px}.page-title{color:var(--text-h);margin-bottom:20px;padding:8px 0;font-size:1.22em;font-weight:700}.text-dim{color:var(--text-dim)}.pdf-list{box-sizing:border-box;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px;padding:16px;display:grid}.pdf-item{background:var(--card-bg);box-shadow:var(--shadow);border:1px solid var(--border);-webkit-tap-highlight-color:transparent;cursor:pointer;border-radius:12px;align-items:center;gap:16px;min-height:72px;padding:12px 16px 8px;transition:all .2s;display:flex;position:relative}.pdf-item.active,.audio-item.active{background:var(--accent-bg)}.pdf-item:hover,.audio-item:hover{background:var(--border)}.audio-item{cursor:pointer;background:0 0;gap:8px;width:100%;padding:12px 20px;list-style:none;transition:background .2s;display:flex}.pdf-icon{color:#2563eb;background:#dbeafe;border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;font-size:18px;font-weight:700;display:flex}.item-info{flex:1;min-width:0}.item-title{color:var(--text-h);text-overflow:ellipsis;-webkit-box-orient:vertical;line-height:1.4;display:-webkit-box;overflow:hidden}.item-meta{color:var(--text);margin-top:4px;font-size:.72em;position:relative;overflow:hidden}.item-meta span{z-index:1;position:relative}.pdf-sub{color:var(--text)}.fav-button{cursor:pointer;z-index:10;background:0 0;border:none;justify-content:center;align-items:center;width:32px;height:32px;padding:0;display:flex;position:absolute;top:0;right:4px}.fav-button span{text-align:center;width:16px}.progress-bar-bg{background:var(--progress-bar-bg);z-index:0;position:absolute;inset:0}.progress-bar-fill{background:var(--accent);height:100%;transition:width .3s}.pdf-arrow{color:#9ca3af;flex-shrink:0}.loading-container{color:#6b7280;flex-direction:column;justify-content:center;align-items:center;gap:1rem;padding:4rem 1rem;display:flex}.spinner{color:#2563eb;animation:1s linear infinite spin}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.error-message{text-align:center;color:#dc2626;padding:2rem 1rem}.error-message p{margin-bottom:1rem}.retry-btn{background:var(--primary-bg);color:#fff;cursor:pointer;box-shadow:var(--shadow);-webkit-tap-highlight-color:transparent;border:1px solid #0000;border-radius:10px;padding:.65rem 1.4rem;font-size:14px;font-weight:600;transition:background .15s,filter .15s,border-color .15s}.retry-btn:hover{filter:brightness(1.08)}.retry-btn:active{filter:brightness(.95);transform:scale(.97)}.generic-error-layout{text-align:center;flex-direction:column;justify-content:center;align-items:center;max-width:420px;margin:auto;padding:3rem 1.5rem;display:flex}.error-icon-wrapper{color:#ef4444;background:#dc26261f;border-radius:50%;justify-content:center;align-items:center;width:64px;height:64px;margin-bottom:1.25rem;display:flex}.error-icon{flex-shrink:0}.error-title{color:var(--text-h);margin:0 0 .5rem;font-size:1.15rem;font-weight:600}.error-description{color:var(--text);opacity:.85;margin:0 0 1.5rem;font-size:.95rem;line-height:1.5}.error-actions{flex-wrap:wrap;justify-content:center;align-items:center;gap:.75rem;display:flex}.error-actions .retry-btn{justify-content:center;align-items:center;gap:.5rem;min-height:42px;padding:.65rem 1.4rem;display:inline-flex}.error-actions .error-btn-primary{background:var(--primary-bg);color:#fff;border:1px solid var(--accent-border);box-shadow:0 2px 8px #00000026}.error-actions .error-btn-primary:hover{filter:brightness(1.1);color:#fff}.error-actions .error-btn-secondary{background:var(--card-bg);color:var(--text-h);border:1px solid var(--border);box-shadow:var(--shadow)}.error-actions .error-btn-secondary:hover{background:color-mix(in srgb, var(--card-bg) 90%, var(--accent) 10%);border-color:var(--accent);color:var(--text-h)}.empty-message{text-align:center;color:#6b7280;padding:3rem 1rem;font-size:15px}.book-detail-page{flex-direction:column;height:100%;display:flex}.detail-title{text-overflow:ellipsis;white-space:nowrap;z-index:1;max-width:60%;margin:0;position:absolute;left:50%;overflow:hidden;transform:translate(-50%)}.back-btn{color:#fff;cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:none;border-radius:8px;justify-content:center;align-items:center;min-width:44px;min-height:44px;padding:8px;display:flex}.back-btn:active{background:#ffffff26}.nav-right{z-index:2;align-items:center;margin-right:4px;display:flex;position:relative}.total-count{color:#f3d04f;font-weight:600}.total-audio-time{white-space:nowrap;background:#ffffff26;border-radius:4px;padding:2px 4px}.detail-content{flex:1;padding-bottom:80px}.player-bar{background:var(--player-bg);border-bottom:2px solid var(--border);z-index:20;grid-template-areas:"stack";display:grid;position:relative;top:0}.player-bar.audio{padding:16px 16px 0;position:sticky}.player-bg,.player-ui{grid-area:stack}.player-bg{pointer-events:none;-webkit-user-select:none;user-select:none;z-index:1;justify-content:center;align-items:center;padding-bottom:16px;display:flex}.clamp-text{-webkit-line-clamp:3;text-align:center;color:#9c9a9a45;-webkit-box-orient:vertical;max-height:5.175rem;font-size:1.15rem;line-height:1.5;display:-webkit-box;overflow:hidden}.player-ui{z-index:2;position:relative}.player-controls{justify-content:center;align-items:center;gap:12px;margin-bottom:12px;display:flex}.control-btn{cursor:pointer;color:var(--text-primary);background:0 0;border:none;border-radius:8px;padding:8px;transition:background .15s}.control-btn:hover:not(:disabled){background:var(--bg-light)}.control-btn:disabled{opacity:.3;cursor:not-allowed}.player-bar .back-btn{z-index:21;border-radius:50%;transition:transform .3s;position:absolute;top:0;left:10px}.play-btn{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:48px;height:48px;transition:transform .1s;display:flex}.play-btn:hover{transform:scale(1.05)}.play-btn:active{transform:scale(.95)}.player-progress{background:var(--border);cursor:pointer;border-radius:3px;height:6px;margin-bottom:12px;position:relative}.progress-fill{background:var(--accent);border-radius:3px;height:100%;transition:width .1s linear;position:absolute;top:0;left:0}.progress-time-left{opacity:.7;font-size:12px;position:absolute;top:12px;left:0}.progress-time-right{opacity:.7;font-size:12px;position:absolute;top:12px;right:0}.player-status{opacity:.8;color:var(--text);justify-content:center;align-items:center;gap:8px;margin-top:20px;padding:0 16px 4px;font-size:13px;display:flex}.chunks-list{flex-direction:column;gap:8px;height:1px;margin-top:8px;padding:4px 8px;display:flex}.item-detail{border-left:1px solid var(--border);border-right:1px solid var(--border);border-bottom:1px solid var(--border);background:var(--code-bg);white-space:pre-wrap;color:var(--text-h);-webkit-user-select:text;user-select:text;text-align:left;border-top:none;border-radius:0 0 10px 10px;margin:-6px 0 4px;padding:16px;position:relative}.copy-btn{border:1px solid var(--border);background:var(--card-bg);width:30px;height:30px;color:var(--text);cursor:pointer;opacity:.85;-webkit-tap-highlight-color:transparent;z-index:1;border-radius:8px;justify-content:center;align-items:center;padding:0;display:flex;position:absolute;top:8px;right:12px;box-shadow:0 1px 4px #00000026}.copy-btn:active{opacity:1}.copy-btn.copied{color:#16a34a;opacity:1}.audio-detail{background:var(--code-bg);white-space:pre-wrap;color:var(--text-h);-webkit-user-select:text;user-select:text;text-align:left;padding:16px}.audio-detail p{margin:16px;line-height:1.6}.audio-detail span{cursor:pointer}span.active{color:#0e1e41;background-color:#fef08a;font-weight:600;transform:scale(1.05)}.chunk-item{background:var(--card-bg);border:1px solid var(--border);-webkit-tap-highlight-color:transparent;cursor:pointer;border-radius:10px;justify-content:space-between;align-items:center;gap:12px;min-height:60px;padding:12px;transition:all .2s;display:flex}.chunk-item.disabled{opacity:.5;cursor:not-allowed}div.listened .item-info,span.listened{opacity:.5}.chunk-item.active{border-color:var(--accent);background:var(--accent-bg);opacity:1!important}.chunk-item:not(.active):hover{background:var(--border)}.chunk-index{background:var(--border);width:32px;height:32px;color:var(--text-h);border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;margin-top:2px;font-size:13px;font-weight:600;display:flex}.chunk-item.active .chunk-index{background:var(--accent);color:#fff}.item-info{text-align:left;flex:1;min-width:0}.chunk-play-area{cursor:pointer;-webkit-tap-highlight-color:transparent;flex:1;align-items:center;gap:12px;min-width:0;min-height:40px;display:flex}.chunk-controls{flex-shrink:0;align-items:center;gap:4px;min-height:40px;display:flex}.expand-btn{color:var(--accent);cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:none;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;margin-top:-4px;padding:8px;display:flex}.expand-btn:active{background:#f3f4f6}.playing-indicator{align-items:flex-end;gap:3px;height:20px;padding:0 8px;display:flex}.wave{align-items:flex-end;gap:2px;height:16px;margin-right:8px;display:flex}.wave-bar{background:var(--accent);border-radius:2px;width:3px;animation:.8s ease-in-out infinite wave}.wave-bar:first-child{height:8px;animation-delay:0s}.wave-bar:nth-child(2){height:16px;animation-delay:.2s}.wave-bar:nth-child(3){height:6px;animation-delay:.4s}@keyframes wave{0%,to{transform:scaleY(1)}50%{transform:scaleY(.5)}}.section-header{color:var(--text-h);justify-content:space-between;align-items:center;margin-bottom:12px;padding-left:4px;font-size:1.2rem;font-weight:700;display:flex;opacity:1!important}.section-title{color:var(--text-h);margin:0;font-size:1.1rem;font-weight:600}.section-action{color:var(--accent);font-size:.9rem;font-weight:500}.section-action a{color:inherit;text-decoration:none}.section-detail{text-align:center;border:1px dashed var(--border);border-radius:12px;padding:2em 1rem}.search-bar{background:var(--card-bg);border:1px solid var(--border);border-radius:16px;align-items:center;min-height:56px;margin-bottom:20px;padding:8px 16px;display:flex}.search-icon{color:var(--text);margin-right:12px}.search-input{color:var(--text-h);background:0 0;border:none;outline:none;flex:1;padding:12px 8px;font-size:16px}.search-input::placeholder{color:var(--text)}.search-clear-btn{color:var(--accent);cursor:pointer;z-index:15;background:0 0;border:none;border-radius:8px;justify-content:center;align-items:center;padding:6px;display:flex}.search-clear-btn:active{background:var(--border)}.search-submit-btn{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:10px;padding:10px 16px;font-size:15px;font-weight:500}.search-submit-btn:active{background:#073b4c}.search-submit-btn:disabled{background:var(--border);color:var(--text);cursor:not-allowed}.search-history-label{color:var(--text-h);font-size:14px;font-weight:500}.search-history-tag{background:var(--border);border-radius:20px;align-items:center;gap:6px;padding:6px 6px 6px 12px;display:flex}.search-history-text{color:var(--text-h);cursor:pointer;background:0 0;border:none;padding:0;font-size:14px}.search-history-remove{color:var(--text);cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;min-width:28px;min-height:28px;padding:4px;display:flex}@media (width>=800px){.app-container{border-left:1px solid var(--accent-border);border-right:1px solid var(--accent-border);max-width:1280px;margin:0 auto;box-shadow:0 0 20px #0000000d}}@supports (padding-top:env(safe-area-inset-top)){.top-nav,.detail-header{box-sizing:content-box;height:56px;padding-top:env(safe-area-inset-top);padding-bottom:0}.side-menu-overlay,.side-menu{top:calc(56px + env(safe-area-inset-top))}}.settings-page{min-height:100%;padding:20px 16px 64px}.setting-section{background:var(--card-bg);box-shadow:var(--shadow);border:1px solid var(--border);border-radius:16px;margin-bottom:28px;transition:transform .2s,box-shadow .2s;overflow:hidden}.setting-section:hover{box-shadow:0 6px 24px #0a4d681a}.setting-row{border-bottom:1px solid var(--border);min-height:64px;color:var(--text-h);justify-content:space-between;align-items:center;padding:16px;font-size:.9em;font-weight:500;transition:background .15s;display:flex}.setting-row:active{background:var(--border)}.setting-row:last-child{border-bottom:none}.setting-value{color:#0369a1;font-size:15px;font-weight:600}.speed-slider{accent-color:#0369a1;background:#e2e8f0;border-radius:4px;width:calc(100% - 40px);height:8px;margin:8px 20px 20px}.toggle{width:54px;height:32px;display:inline-block;position:relative}.toggle input{opacity:0;width:0;height:0}.toggle-slider{cursor:pointer;background-color:#cbd5e1;border-radius:32px;transition:all .2s cubic-bezier(.4,0,.2,1);position:absolute;inset:0}.toggle-slider:before{content:"";background-color:#fff;border-radius:50%;width:26px;height:26px;transition:all .2s cubic-bezier(.4,0,.2,1);position:absolute;bottom:3px;left:3px;box-shadow:0 2px 8px #0000001f}input:checked+.toggle-slider{background:linear-gradient(135deg,#0369a1 0%,#075985 100%)}input:checked+.toggle-slider:before{transform:translate(22px)}.setting-select{border:2px solid var(--border);background:var(--card-bg);min-width:160px;min-height:52px;color:var(--text-h);cursor:pointer;border-radius:12px;justify-content:space-between;align-items:center;gap:12px;padding:12px 16px;font-weight:600;transition:all .2s;display:flex}.setting-select:hover{border-color:#cbd5e1}.setting-select:focus{border-color:#0369a1;outline:none;box-shadow:0 0 0 2px #0369a126}.setting-select svg{color:#64748b}.plain-link{color:var(--accent);cursor:pointer}a.link{color:var(--accent);text-decoration:none;transition:opacity .2s}a.link:hover,a.link:active{opacity:.85;text-decoration:underline}a.link:visited{color:var(--accent)}.setting-select:active{transform:scale(.98)}.clear-cache-btn{color:#fff;cursor:pointer;background:linear-gradient(135deg,#ef4444 0%,#dc2626 100%);border:none;border-radius:16px;width:calc(100% - 40px);margin:8px 20px 20px;padding:14px;font-size:15px;font-weight:600;transition:all .15s;box-shadow:0 3px 10px #ef444440}.clear-cache-btn:hover{transform:translateY(-1px);box-shadow:0 5px 14px #ef444459}.clear-cache-btn:active{transform:scale(.98);box-shadow:0 2px 6px #ef44444d}.font-size-options,.theme-options{justify-content:space-between;padding:16px 8px;display:flex}.font-size-options{gap:8px}.theme-options{gap:16px}.font-btn,.theme-btn{border:2px solid var(--border);background:var(--card-bg);cursor:pointer;min-width:0;color:var(--text-h);border-radius:12px;flex:1;padding:12px 8px;font-weight:600;transition:all .2s}.font-btn.active,.theme-btn.active{color:#fff;background:linear-gradient(135deg,#0369a1 0%,#075985 100%);border-color:#0000;transform:scale(1.02);box-shadow:0 2px 8px #0369a14d}.font-btn:active,.theme-btn:active{transform:scale(.97)}.font-btn:hover,.theme-btn:hover{border-color:var(--accent)}.app-version{text-align:center;color:var(--text);padding:32px 20px;font-size:14px;font-weight:500}.app-version--clickable{cursor:pointer}.app-version--clickable:active{opacity:.6}.welcome-header{text-align:center;padding:2rem 1rem 1.5rem}.welcome-title{color:var(--text-h);margin-bottom:.5rem;font-size:1.75rem;font-weight:700}.welcome-subtitle{color:var(--text);margin:0}.stats-card{background:var(--card-bg);color:var(--text-h);text-align:center;border:1px solid var(--border);border-radius:16px;justify-content:space-around;align-items:center;padding:16px 4px;display:flex}.stat-item{border-radius:8px;padding:8px}.stat-item>div:first-child{color:var(--accent);margin-bottom:4px;font-size:1.75rem;font-weight:700}.stat-item>div:last-child{color:var(--text);font-size:.85rem}.base-button{cursor:pointer;text-decoration:none;transition:all .2s;display:flex}.base-button>svg{stroke:var(--accent);margin-bottom:8px}.base-button:active{transform:scale(.985)}.base-button:not(.disabled):hover,.stat-item:hover{border-color:var(--accent-border);background:color-mix(in srgb, var(--border) 98%, var(--accent))!important}.base-button.disabled{opacity:.7;cursor:default}.base-button.primary{background:var(--primary-bg);color:#fff;box-shadow:var(--primary-shadow);border-radius:12px;justify-content:center;align-items:center;gap:14px;padding:16px}.base-button.primary:not(.disabled):hover{color:#ff0;background:var(--primary-bg)!important}.base-button.card{background:var(--card-bg);box-shadow:var(--shadow);border:1px solid var(--border);color:var(--text-h);border-radius:12px;align-items:center;gap:14px;padding:16px}.base-button.default{background:var(--card-bg);color:var(--text-h);box-shadow:var(--shadow);border:1px solid var(--border);border-radius:16px;flex-direction:column;justify-content:center;align-items:center;padding:20px 12px}.book-icon{background:#ffffff26;border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;font-size:18px;display:flex}.book-info{flex:1;min-width:0}.book-title{color:var(--text-h);margin-bottom:4px}.book-meta{color:var(--text);font-size:.85rem}.video-group{background:var(--card-bg);box-shadow:var(--shadow);border:1px solid var(--border);border-radius:12px;padding:8px 16px;overflow:hidden}.video-group-header{cursor:pointer;-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none;border-radius:8px;flex-direction:column;justify-items:center;gap:4px;padding:8px 16px 4px;display:flex;position:relative}.video-group-header:hover{background:var(--border)}.video-group.active{border-color:var(--accent-border)}.video-group.active .video-group-header{background:var(--bg)}.video-group-title{color:var(--text-h);align-items:center;gap:8px;font-weight:600;display:flex}.video-group-videos{border:1px solid var(--border);border-radius:8px;flex-direction:column;gap:4px;margin-top:8px;padding:8px;display:flex}.video-item .video-poster{object-fit:cover;background:var(--bg-light);border-radius:6px;flex-shrink:0;width:96px;height:54px}.player-bar.video{position:sticky}.video-panel{z-index:20;position:sticky;top:0}.video-panel .player-bar.video{position:relative}.player-bar.video .player-ui,.player-bar.video media-player{width:100%}.video-subtitles{box-sizing:border-box;color:#ff0;text-align:center;white-space:pre-line;pointer-events:none;z-index:30;text-shadow:0 1px 2px #000c;background:#272727a6;border-radius:6px;max-width:92%;padding:8px 12px;font-size:1.2rem;line-height:1.4;position:absolute;bottom:48px;left:50%;transform:translate(-50%)}.video-subtitles:empty{display:none}.select-content{background:var(--card-bg);box-shadow:var(--shadow);z-index:1000;border-radius:12px;min-width:220px;overflow:hidden}.select-viewport{padding:8px}.select-item{cursor:pointer;min-height:52px;color:var(--text-h);border-radius:8px;justify-content:space-between;align-items:center;padding:14px 16px;font-weight:500;transition:background .1s;display:flex}.select-item:hover{background:var(--border)}.select-item[data-highlighted]{background:var(--accent-bg);outline:none}.select-item[data-state=checked],.select-item-indicator{color:#0369a1}.about-content{color:var(--text);padding:1.5rem;line-height:1.8}.about-title{color:var(--text-h);flex-direction:column;display:flex}.about-features{background:var(--accent-bg);border:1px solid var(--accent-border);border-radius:8px;margin-top:1.5rem;padding:1rem}.about-features ul li{margin:.75em 0}.about-disclaimer{background:var(--bg);border:1px solid var(--accent-border);border-radius:12px;padding:1.25rem}.about-disclaimer-title{color:var(--text-h);align-items:center;gap:8px;margin:0 0 1rem;font-size:1.1rem;display:flex}.about-disclaimer-text{color:var(--text)}.about-privacy{background:var(--bg);border:1px solid var(--accent-border);border-radius:12px;padding:1.25rem}.about-privacy-title{color:var(--text-h);align-items:center;gap:8px;margin:0 0 1rem;font-size:1.1rem;display:flex}.about-privacy-text{color:var(--text)}.about-privacy-text ul{padding-left:1.5em;line-height:1.9;list-style:square}.about-disclaimer-text p,.about-privacy-text p{margin:1em 0 0;line-height:1.9}.about-footer{text-align:center;color:var(--text);padding:1rem;font-size:.8rem}.menu-footer{border-top:1px solid var(--border);margin-top:auto;padding:16px 20px}.language-toggle{background:var(--border);cursor:pointer;border:none;border-radius:12px;justify-content:center;align-items:center;gap:12px;width:100%;padding:12px;font-size:14px;font-weight:600;transition:all .15s;display:flex}.language-toggle:hover{background:color-mix(in srgb, var(--border) 85%, var(--accent));border-color:var(--accent)}.language-toggle span{color:var(--text-h);transition:all .15s}.active-lang{font-weight:700;color:var(--accent)!important}.lang-divider{color:#94a3b8}.download-col{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:8px;width:40px;display:flex}.download-btn{color:#6b7280;cursor:pointer;background:#f3f4f6;border:none;border-radius:8px;justify-content:center;align-items:center;min-width:32px;padding:10px 12px;transition:all .2s;display:flex;position:relative}.is-completed{color:#166534;background:var(--card-bg);border:none}.is-completed svg{color:#e65353}.download-btn.is-loading{cursor:wait}.download-count{color:var(--accent);font-size:.8em;position:absolute;top:2px;right:2px}.dialog-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:999;background-color:#00000073;animation:.15s cubic-bezier(.16,1,.3,1) fadeIn;position:fixed;inset:0}.dialog-content{background-color:var(--card-bg);z-index:1000;border-radius:20px;width:90vw;max-width:400px;max-height:85vh;padding:24px;animation:.2s cubic-bezier(.16,1,.3,1) slideUpAndFade;position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);box-shadow:0 25px 50px -12px #00000040,0 0 0 1px #00000014}.dialog-header{align-items:center;gap:12px;margin-bottom:16px;display:flex}.dialog-icon{color:#ef4444;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;display:flex}.dialog-title{color:var(--text-h);flex:1;margin:0;font-size:18px;font-weight:700}.dialog-close-btn{cursor:pointer;width:36px;height:36px;color:var(--text);background:0 0;border:none;border-radius:10px;justify-content:center;align-items:center;transition:all .15s;display:flex}.dialog-close-btn:hover{color:var(--text-h);background:#720606}.dialog-description{color:var(--text);margin-bottom:24px;line-height:1.6}.dialog-actions{justify-content:flex-end;gap:12px;display:flex}.dialog-btn{cursor:pointer;border:none;border-radius:12px;min-width:100px;padding:12px 20px;font-size:15px;font-weight:600;transition:all .15s}.dialog-btn-secondary{background:var(--border);color:var(--text-h)}.dialog-btn-secondary:hover{background:#5e646b}.dialog-btn-danger{color:#fff;background:linear-gradient(135deg,#dc2626 0%,#b91c1c 100%);box-shadow:0 4px 12px #dc26264d}.dialog-btn-danger:hover{background:linear-gradient(135deg,#7e0303 0%,#811919 100%);box-shadow:0 6px 16px #dc262666}.dialog-btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.tooltip-content{z-index:50;-webkit-user-select:none;user-select:none;color:#e2e8f0;background-color:#1e2025;border:1px solid #8d891f;border-radius:8px;padding:6px 12px;font-size:.85em;box-shadow:0 10px 15px -3px #0000004d}.tooltip-arrow{fill:#1e2025}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUpAndFade{0%{opacity:0;transform:translate(-50%,-48%)scale(.96)}to{opacity:1;transform:translate(-50%,-50%)scale(1)}}.floating-actions{pointer-events:none;z-index:15;align-items:center;padding:0 20px;display:flex;position:absolute;bottom:16px;left:0;right:0}.floating-actions-center{flex:1;justify-content:center;margin:0 8px;display:flex}.float-btn{cursor:pointer;-webkit-tap-highlight-color:transparent;pointer-events:auto;width:48px;height:48px;box-shadow:var(--shadow);opacity:.8;color:var(--link-color);border:1px solid var(--border);border-radius:50%;justify-content:center;align-items:center;transition:all .2s;display:flex}.switch-btn,.video-mode .doc-toggle-btn{z-index:3;cursor:pointer;-webkit-tap-highlight-color:transparent;pointer-events:auto;width:48px;height:48px;color:var(--text);background-color:#0000;border:none;border-radius:50%;justify-content:center;align-items:center;padding:0;transition:all .2s;display:flex;position:absolute;top:30px}.switch-btn{left:8px}.video-mode .doc-toggle-btn{z-index:100;display:none;right:8px}.switch-btn:hover,.doc-toggle-btn:hover,.player-bar .back-btn:hover{background-color:revert}.player-bar.audio .back-btn,.player-bar.audio .back-btn:hover{background:#0f172a}.switch-btn:active,.video-mode .doc-toggle-btn:active,.float-btn:active{transform:scale(.95)}.auto-scroll-btn.active{background:var(--accent);color:var(--text-h)}.scroll-top-btn{background:var(--card-bg);margin-left:auto}.auto-scroll-btn:hover,.scroll-top-btn:hover,.copy-btn:hover{background-color:var(--accent-bg);color:#ff0;transform:scale(.95)}.search-bar-integrated{border:1px solid var(--border);width:48px;height:48px;box-shadow:var(--shadow);pointer-events:auto;z-index:20;border-radius:50%;align-items:center;transition:all .3s;display:flex}.search-bar-integrated.expanded{background:var(--card-bg);border-color:var(--accent-border);border-radius:12px;width:auto;max-width:90vw}.searchbar-close-btn{box-shadow:none;background-color:#0000;border:none}.search-input-wrapper{flex:1;align-items:center;min-width:0;display:flex}.search-input-field{color:var(--text-h);background:0 0;border:none;outline:none;flex:1;min-width:0;padding:8px;font-size:1em}.search-input-field::placeholder{color:var(--text)}.search-close-btn{color:var(--text);cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:none;border-radius:6px;justify-content:center;align-items:center;padding:6px;transition:all .15s;display:flex}.search-close-btn:hover{background:var(--border);color:var(--text-h)}.search-nav-group{align-items:center;gap:8px;padding:0 4px;display:flex}.search-nav-btn{background:var(--border);color:var(--text-h);cursor:pointer;-webkit-tap-highlight-color:transparent;border:none;border-radius:8px;justify-content:center;align-items:center;width:32px;height:32px;transition:all .15s;display:flex}.search-nav-btn:disabled{opacity:.3;cursor:not-allowed}.search-nav-btn:not(:disabled):hover{background:var(--accent-bg);color:var(--accent)}.search-counter{color:var(--text);text-align:center;min-width:40px;font-size:12px}span.search-highlight{transition:background-color .3s;background-color:#fbbf24!important}span.search-keyword-highlight{color:#0e1e41;cursor:inherit;background-color:#fbbf24;border-radius:2px;padding:0 2px;font-weight:600}.audio-detail span.plain-chunk{cursor:default}mark{color:#0e1e41;background-color:#fbbf24;border-radius:2px;padding:0 2px;font-weight:600}.detail-ui{flex-direction:column;display:flex}.book-detail-page .detail-header{transition:margin-top .22s,margin-bottom .22s,box-shadow .22s}.book-detail-page.header-hidden .detail-header{margin-top:calc(-1 * var(--detail-header-h,56px));margin-bottom:var(--detail-header-inset,0px);box-shadow:none;pointer-events:none}.doc-toggle-btn{display:none}.video-detail-content{flex-direction:column;flex:1;min-height:0;padding-bottom:0;display:flex;overflow:hidden}.video-detail-content .detail-split{flex-direction:column;flex:1;min-height:0;display:flex}.video-detail-content .video-panel{z-index:auto;flex:none;position:relative;top:auto}.video-detail-content .doc-panel{border-top:2px solid var(--border);flex-direction:column;flex:1;min-height:0;display:flex;position:relative}.video-detail-content .doc-panel .audio-detail{-webkit-overflow-scrolling:touch;flex:1;min-height:0;padding-bottom:88px;overflow-y:auto}.transcript-panel{flex-direction:column;flex:1;min-height:0;display:flex;position:relative}.audio-detail-content{flex-direction:column;flex:1;min-height:0;padding-bottom:0;display:flex;position:relative;overflow:hidden}.audio-detail-content .player-bar{flex:none;position:relative}.audio-detail-content .audio-detail{-webkit-overflow-scrolling:touch;flex:1;min-height:0;padding-bottom:88px;overflow-y:auto}@media (orientation:landscape){.video-mode.video-detail-content{flex-direction:column;flex:1;min-height:0;padding-bottom:0;display:flex;overflow:hidden}.video-mode .detail-split{flex-direction:row;flex:1;align-items:stretch;min-height:0;display:flex}.video-mode .video-panel{z-index:auto;flex-direction:column;justify-content:center;width:60%;min-width:0;display:flex;position:relative;top:auto}.video-mode .video-panel .player-bar.video{flex-direction:column;flex:1;justify-content:center;align-items:center;min-height:0;display:flex;position:relative}.video-mode .video-panel .player-bar.video .player-ui{justify-content:center;align-items:center;width:100%;height:100%;min-height:0;display:flex}.video-mode .video-panel .player-bar.video div[data-media-player]{width:auto;max-width:100%;height:100%;display:block}.detail-ui.video .player-bar.video div[data-media-player]{width:auto;max-width:100%;margin:0 auto;display:block;overflow:hidden;max-height:calc(100vh - 70px)!important}.detail-ui.video .player-bar.video video{object-fit:contain;width:100%;height:100%}.video-mode .doc-panel{border-top:0;border-left:2px solid var(--border);background:linear-gradient(135deg,#f0f4f8 0%,#e8f0fe 100%);flex-direction:column;width:40%;min-width:0;display:flex;position:relative;box-shadow:-4px 0 12px #00000014}.video-mode .doc-panel .audio-detail{-webkit-overflow-scrolling:touch;flex:1;min-height:0;padding-bottom:88px;overflow-y:auto}.video-mode .detail-split.doc-collapsed .doc-panel{display:none}.video-mode .detail-split.doc-collapsed .video-panel{width:100%}.video-mode .doc-toggle-btn{display:flex}}