:root{--bg-primary:#f8fafc;--bg-secondary:#fff;--bg-tertiary:#f1f5f9;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--primary:#4f46e5;--primary-hover:#4338ca;--primary-light:#e0e7ff;--accent:#06b6d4;--accent-hover:#0891b2;--border-color:#e2e8f0;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -2px #0000000d;--glass-bg:#ffffffbf;--glass-border:#ffffff80;--glass-blur:blur(12px);--pirls-peach:#ffe5d9;--pirls-sage:#e8f0f2;--pirls-sky:#e0f2fe;--pirls-lemon:#fef9c3;--pirls-rose:#fce7f3;--step-peach-text:#e8643a;--step-sage-text:#2e7d32;--step-sky-text:#0284c7;--step-lemon-text:#b7791f;--step-rose-text:#db2777;--transition-fast:.15s ease;--transition-normal:.25s ease;--transition-slow:.4s ease}[data-theme=dark]{--bg-primary:#090d16;--bg-secondary:#111827;--bg-tertiary:#1f2937;--text-primary:#f8fafc;--text-secondary:#cbd5e1;--text-muted:#64748b;--primary:#6366f1;--primary-hover:#4f46e5;--primary-light:#312e81;--accent:#22d3ee;--accent-hover:#06b6d4;--border-color:#374151;--shadow-sm:0 1px 2px 0 #00000080;--shadow-md:0 4px 6px -1px #00000080, 0 2px 4px -1px #0000004d;--shadow-lg:0 10px 15px -3px #000000b3, 0 4px 6px -2px #00000080;--glass-bg:#111827bf;--glass-border:#ffffff14;--step-peach-text:#ff8a65;--step-sage-text:#81c784;--step-sky-text:#4fc3f7;--step-lemon-text:#ffd54f;--step-rose-text:#f06292}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-primary);color:var(--text-primary);transition:background-color var(--transition-normal), color var(--transition-normal);font-family:Inter,Outfit,Noto Sans TC,system-ui,-apple-system,sans-serif;line-height:1.5;overflow-x:hidden}a{color:var(--primary);transition:color 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var(--transition-fast);border-radius:8px;flex:1;padding:.6rem .8rem;font-size:.9rem}.input-text:focus{border-color:var(--primary);outline:none}.upload-dropzone{border:2px dashed var(--border-color);text-align:center;transition:border-color var(--transition-fast), background-color var(--transition-fast);cursor:pointer;background-color:var(--bg-primary);border-radius:12px;margin-bottom:1.5rem;padding:2.5rem 1.5rem}.upload-dropzone:hover,.upload-dropzone.drag-active{border-color:var(--primary);background-color:var(--primary-light)}.upload-dropzone .icon-upload{color:var(--text-muted);margin-bottom:.8rem}.upload-dropzone p{color:var(--text-secondary);font-size:.9rem}.upload-dropzone .small-text{color:var(--text-muted);margin-top:.3rem;font-size:.75rem}.photo-preview-grid{grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:1rem;margin-bottom:1.5rem;display:grid}.photo-preview-card{aspect-ratio:1;border:2px solid var(--border-color);box-shadow:var(--shadow-sm);cursor:grab;transition:transform var(--transition-fast), border-color var(--transition-fast);border-radius:8px;position:relative;overflow:hidden}.photo-preview-card:hover{border-color:var(--primary);transform:translateY(-2px)}.photo-preview-card img{object-fit:cover;width:100%;height:100%}.photo-preview-card .btn-delete-photo{color:#fff;width:22px;height:22px;transition:scale var(--transition-fast);background-color:#ef4444e6;border-radius:50%;justify-content:center;align-items:center;font-size:.7rem;display:flex;position:absolute;top:4px;right:4px}.photo-preview-card .btn-delete-photo:hover{background-color:#dc2626;scale:1.1}.photo-preview-card .photo-badge{color:#fff;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background-color:#0f172abf;border-radius:4px;padding:1px 6px;font-size:.7rem;font-weight:700;position:absolute;bottom:4px;left:4px}.btn-primary{background-color:var(--primary);color:#fff;transition:background-color 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var(--transition-fast);border-radius:10px;flex-direction:column;gap:.4rem;padding:.8rem;display:flex}.audio-option-card.active{border-color:var(--primary)}.audio-card-header{align-items:center;gap:.4rem;font-size:.9rem;font-weight:700;display:flex}.audio-select{border:1px solid var(--border-color);background-color:var(--bg-secondary);width:100%;color:var(--text-primary);border-radius:6px;padding:.4rem .6rem;font-size:.8rem}.audio-slider-row{align-items:center;gap:.5rem;font-size:.8rem;display:flex}.audio-slider-row input[type=range]{flex:1}.scenes-editor-list{flex-direction:column;gap:1rem;margin-top:1rem;display:flex}.scene-editor-card{border:1px solid var(--border-color);background-color:var(--bg-primary);transition:border-color var(--transition-fast);border-radius:12px;align-items:flex-start;gap:1.2rem;padding:1.2rem;display:flex}.scene-editor-card:hover{border-color:var(--primary)}.scene-card-thumb{aspect-ratio:1;border:1px solid var(--border-color);border-radius:6px;flex-shrink:0;width:90px;overflow:hidden}.scene-card-thumb img{object-fit:cover;width:100%;height:100%}.scene-card-fields{flex-direction:column;flex:1;gap:.8rem;display:flex}.scene-fields-row{grid-template-columns:1fr;gap:.8rem;display:grid}@media (width>=640px){.scene-fields-row{grid-template-columns:1fr 1fr}}.scene-input-group{flex-direction:column;gap:.3rem;display:flex}.scene-input-group label{color:var(--text-secondary);font-size:.75rem;font-weight:700}.textarea-subtitle{border:1px solid var(--border-color);background-color:var(--bg-secondary);width:100%;color:var(--text-primary);resize:vertical;border-radius:6px;min-height:44px;padding:.5rem .6rem;font-size:.85rem}.textarea-subtitle:focus{border-color:var(--primary);outline:none}.onboarding-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:100;background-color:#0f172aa6;justify-content:center;align-items:center;padding:1.5rem;animation:.2s ease-out 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1.8rem;overflow-y:auto}.onboarding-intro{color:var(--text-secondary);margin-bottom:1.5rem;font-size:.95rem}.onboarding-steps{flex-direction:column;gap:1rem;display:flex}.onboarding-step-card{background-color:var(--step-color);transition:transform var(--transition-fast);border:1px solid #0000000d;border-radius:12px;align-items:flex-start;gap:1rem;padding:1rem;display:flex}.onboarding-step-card:hover{transform:translate(4px)}.step-num-badge{text-transform:uppercase;color:#fff;background-color:#0f172ad9;border-radius:4px;align-self:flex-start;padding:1px 6px;font-size:.7rem;font-weight:800}.step-icon-circle{width:44px;height:44px;box-shadow:var(--shadow-sm);background-color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:1.5rem;display:flex}.step-text-wrapper h3{color:var(--text-primary);margin-bottom:.15rem;font-size:.95rem;font-weight:700}[data-theme=dark] .onboarding-step-card{background-color:var(--bg-tertiary)}[data-theme=dark] .onboarding-step-card:first-child .step-text-wrapper h3{color:var(--step-peach-text)}[data-theme=dark] .onboarding-step-card:nth-child(2) .step-text-wrapper h3{color:var(--step-sage-text)}[data-theme=dark] .onboarding-step-card:nth-child(3) .step-text-wrapper h3{color:var(--step-sky-text)}[data-theme=dark] .onboarding-step-card:nth-child(4) .step-text-wrapper h3{color:var(--step-lemon-text)}[data-theme=dark] .onboarding-step-card:nth-child(5) .step-text-wrapper h3{color:var(--step-rose-text)}.step-text-wrapper p{color:var(--text-secondary);font-size:.85rem;line-height:1.4}.onboarding-tips{background-color:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:12px;margin-top:1.5rem;padding:1.2rem}.onboarding-tips h4{align-items:center;gap:.3rem;margin-bottom:.5rem;font-size:.9rem;font-weight:700;display:flex}.onboarding-tips ul{color:var(--text-secondary);flex-direction:column;gap:.4rem;padding-left:1.2rem;font-size:.8rem;display:flex}.onboarding-footer{border-top:1px 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a{font-weight:700;text-decoration:none}.loading-box{text-align:center;background-color:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:12px;flex-direction:column;justify-content:center;align-items:center;padding:3rem;display:flex}.spinner{border:5px solid var(--border-color);border-bottom-color:var(--primary);border-radius:50%;width:48px;height:48px;margin-bottom:1.2rem;animation:1s linear infinite rotation}.alert-error{color:#ef4444;background-color:#ef444426;border:1px solid #ef44444d;border-radius:8px;align-items:center;gap:.5rem;margin-bottom:1rem;padding:.8rem 1rem;font-size:.85rem;display:flex}.alert-warning{color:#b45309;background-color:#f59e0b1f;border:1px solid #f59e0b40;border-radius:8px;margin-top:.5rem;padding:.6rem .8rem;font-size:.8rem}[data-theme=dark] .alert-warning{color:#fbbf24}.btn-export-row{justify-content:flex-end;margin-top:1rem;display:flex}@keyframes rotation{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes 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#ffffff26;border-radius:12px;width:100%;max-width:900px;margin-top:1.5rem;margin-bottom:0;padding:.8rem 1.5rem}.video-player-component:fullscreen .audio-options-grid{display:none!important}.video-player-component:fullscreen .btn-export-row{display:none!important}.video-player-component:fullscreen h4{display:none!important}.video-player-component:fullscreen .scenes-editor-list{display:none!important}@media (width<=768px){.app-main{padding:1rem}.intro-banner{border-radius:16px;margin-bottom:1.5rem;padding:1.5rem}.intro-banner h2{font-size:1.4rem}.intro-banner p{font-size:.9rem}.banner-buttons{flex-direction:column;gap:.6rem}.banner-buttons button{justify-content:center;width:100%}.panel-card{border-radius:16px;padding:1.25rem}.grid-container{gap:1.5rem}.video-controls{flex-direction:column;gap:.8rem;padding:.8rem 1rem}.video-timeline-slider{order:1;width:100%;margin:.5rem 0!important}.control-buttons-left{order:0;justify-content:space-between;width:100%}.video-controls>div:last-child{order:2;justify-content:flex-end;width:100%}.audio-options-grid{grid-template-columns:1fr;gap:.8rem}.scene-editor-card{flex-direction:column;align-items:stretch;gap:1rem;padding:1rem}.scene-card-thumb{width:100%;max-width:150px;margin:0 auto}.scene-fields-row{grid-template-columns:1fr;gap:.6rem}.btn-export-row{justify-content:center}.btn-export-row button{justify-content:center;width:100%}.onboarding-content{width:95%;max-height:85vh}.onboarding-header,.onboarding-body{padding:1rem}.onboarding-footer{text-align:center;flex-direction:column;align-items:center;gap:.8rem;padding:1rem}.onboarding-footer button{justify-content:center;width:100%}}.tts-loading-overlay{-webkit-backdrop-filter:blur(12px);z-index:30;animation:fadeIn var(--transition-fast);background-color:#090d16bf;justify-content:center;align-items:center;padding:1.5rem;display:flex;position:absolute;inset:0}.tts-loading-card{text-align:center;width:100%;max-width:380px;animation:slideUp var(--transition-normal);background:#111827d9;border:1px solid #ffffff14;border-radius:20px;flex-direction:column;align-items:center;gap:1.2rem;padding:2rem;display:flex;box-shadow:0 20px 50px #0009,inset 0 1px 1px #ffffff1a}[data-theme=light] .tts-loading-card{background:#ffffffe6;border:1px solid #0000000d;box-shadow:0 20px 50px #00000026,inset 0 1px #ffffff80}.tts-loading-spinner-wrapper{background:#4f46e51a;border:1.5px solid #4f46e533;border-radius:50%;justify-content:center;align-items:center;width:72px;height:72px;display:flex;position:relative}.tts-loading-spinner-wrapper .loader-icon{color:var(--primary);animation:1.2s linear infinite spin}.tts-percentage-badge{color:var(--text-primary);font-size:.85rem;font-weight:800;position:absolute}.tts-loading-text-group h4{color:var(--text-primary);letter-spacing:-.01em;margin-bottom:.3rem;font-size:1.2rem;font-weight:800}.tts-loading-text-group p{color:var(--text-secondary);font-size:.8rem;line-height:1.45}.tts-progress-track{background-color:var(--border-color);border-radius:3px;width:100%;height:6px;position:relative;overflow:hidden}.tts-progress-fill{background:linear-gradient(90deg, var(--primary), var(--accent));border-radius:3px;height:100%;transition:width .2s cubic-bezier(.4,0,.2,1);box-shadow:0 0 10px #4f46e566}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.animate-spin{animation:1s linear infinite spin}.update-toast{z-index:9999;background:var(--glass-bg);max-width:min(420px,100vw - 2.5rem);-webkit-backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);box-shadow:var(--shadow-lg);color:var(--text-primary);animation:update-toast-in var(--transition-normal);border-radius:14px;align-items:center;gap:.75rem;padding:.9rem 1rem;display:flex;position:fixed;bottom:1.25rem;right:1.25rem}@keyframes update-toast-in{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.update-toast__icon{color:var(--primary);flex-shrink:0;animation:2.4s linear infinite spin}.update-toast__text{flex-direction:column;gap:.15rem;line-height:1.35;display:flex}.update-toast__text strong{font-size:.95rem;font-weight:700}.update-toast__text span{color:var(--text-secondary);font-size:.8rem}.update-toast__btn{background:var(--primary);color:#fff;cursor:pointer;transition:background var(--transition-fast);border:none;border-radius:10px;flex-shrink:0;padding:.5rem .9rem;font-size:.85rem;font-weight:600}.update-toast__btn:hover{background:var(--primary-hover)}.update-toast__close{width:28px;height:28px;color:var(--text-muted);cursor:pointer;transition:background var(--transition-fast), color var(--transition-fast);background:0 0;border:none;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;padding:0;display:inline-flex}.update-toast__close:hover{background:var(--bg-tertiary);color:var(--text-primary)}@media (width<=480px){.update-toast{max-width:none;bottom:1rem;left:1rem;right:1rem}}