:root{--background-color: #1a1a1a;--surface-color: #2c2c2c;--primary-color: #007bff;--primary-hover-color: #0056b3;--text-color: #f0f0f0;--text-secondary-color: #a0a0a0;--border-color: #444;--error-color: #ff4d4d;--success-color: #4caf50}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,"Apple Color Emoji","Segoe UI Emoji",Segoe UI Symbol,"Noto Color Emoji",Noto Sans TC,sans-serif;background-color:var(--background-color);color:var(--text-color);line-height:1.6}#root{display:flex;flex-direction:column;align-items:center;padding:2rem 1rem;min-height:100vh}.container{width:100%;max-width:1600px;display:flex;flex-direction:column;gap:2rem;padding:0 1rem}h1{text-align:center;color:var(--text-color);font-size:2.5rem;margin-bottom:1rem}.input-section{background-color:var(--surface-color);border-radius:12px;padding:1.5rem;border:1px solid var(--border-color);display:flex;flex-direction:column;gap:1.5rem}.form-group{display:flex;flex-direction:column;gap:.5rem}label{font-weight:600;color:var(--text-secondary-color)}.upload-area{border:2px dashed var(--border-color);border-radius:8px;padding:2rem;text-align:center;cursor:pointer;transition:border-color .2s,background-color .2s}.upload-area:hover,.upload-area.drag-over{border-color:var(--primary-color);background-color:#007bff0d}.upload-area p{color:var(--text-secondary-color)}#file-upload{display:none}.image-preview{max-width:100%;max-height:200px;border-radius:8px;margin-top:1rem;object-fit:contain}.radio-group{display:flex;gap:1rem}.radio-group label{background-color:#3a3a3a;padding:.5rem 1rem;border-radius:20px;cursor:pointer;transition:background-color .2s,color .2s;color:var(--text-secondary-color);border:1px solid var(--border-color)}.radio-group input[type=radio]{display:none}.radio-group 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var(--border-color)}.btn-secondary:hover:not(:disabled){background-color:#5a5a5a}.btn:disabled{background-color:#555;color:#999;cursor:not-allowed}.btn:active:not(:disabled){transform:scale(.98)}.project-actions{display:flex;gap:1rem;margin-top:-.5rem;border-top:1px solid var(--border-color);padding-top:1.5rem}.loading-section,.result-section{width:100%;text-align:center}.spinner{border:4px solid rgba(255,255,255,.2);border-left-color:var(--primary-color);border-radius:50%;width:50px;height:50px;animation:spin 1s linear infinite;margin:0 auto 1rem}@keyframes spin{to{transform:rotate(360deg)}}.loading-message{font-size:1.1rem;color:var(--text-secondary-color)}.result-header{display:flex;justify-content:flex-end;gap:1rem;margin-bottom:1.5rem;flex-wrap:wrap}.video-generation-controls{display:flex;gap:.75rem;flex-wrap:wrap;align-items:center}.video-generation-controls .btn{white-space:nowrap}.btn-warning{background-color:#f39c12;color:#fff}.btn-warning:hover:not(:disabled){background-color:#e67e22}.storyboard-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem}@media(min-width:768px){.storyboard-grid{grid-template-columns:repeat(auto-fill,minmax(320px,1fr))}}@media(min-width:1200px){.storyboard-grid{grid-template-columns:repeat(auto-fill,minmax(350px,1fr))}}.cut-card{background-color:var(--surface-color);border-radius:12px;border:1px solid var(--border-color);overflow:hidden;display:flex;flex-direction:column}.cut-header{display:flex;align-items:center;justify-content:space-between;padding:.75rem 1rem;background-color:#0003;border-bottom:1px solid var(--border-color)}.cut-header h3{margin:0;padding:0;background:none;border:none}.btn-delete{background-color:transparent;color:var(--error-color);border:1px solid var(--error-color);padding:.25rem .5rem;font-size:1.2rem;line-height:1;border-radius:4px;cursor:pointer;transition:background-color .2s,color .2s;min-width:30px;height:30px;display:flex;align-items:center;justify-content:center}.btn-delete:hover:not(:disabled){background-color:var(--error-color);color:#fff}.btn-delete:disabled{opacity:.3;cursor:not-allowed;border-color:#666;color:#666}.cut-card img{width:100%;height:auto;object-fit:cover;background-color:#222}.image-placeholder{width:100%;background-color:#222;display:flex;justify-content:center;align-items:center;color:var(--text-secondary-color);font-size:.9rem}.prompt-area{padding:1rem;text-align:left;border-top:1px solid var(--border-color)}.prompt-area label{font-size:.9rem;margin-bottom:.5rem;display:block}.prompt-text-container{display:flex;gap:.5rem;align-items:flex-start}.prompt-text{flex-grow:1;background-color:#3a3a3a;padding:.5rem 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var(--border-color)}.btn-close{background-color:transparent;color:var(--text-color);border:1px solid var(--border-color);padding:.5rem;font-size:1.2rem;min-width:auto}.btn-close:hover:not(:disabled){background-color:var(--error-color);color:#fff;border-color:var(--error-color)}.video-preview-modal{max-width:900px;width:95%;padding:0;overflow:hidden}.video-preview-header{display:flex;justify-content:space-between;align-items:center;padding:1.5rem;background-color:#0000004d;border-bottom:1px solid var(--border-color)}.video-preview-header h2{margin:0;color:var(--text-color);font-size:1.5rem}.video-preview-container{padding:2rem;background-color:#000;display:flex;justify-content:center;align-items:center;min-height:400px}.preview-video{max-width:100%;max-height:70vh;border-radius:8px;box-shadow:0 4px 12px #00000080}.video-preview-controls{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.5rem;background-color:var(--surface-color);border-top:1px solid 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p{margin-bottom:1.5rem;color:var(--text-secondary-color);line-height:1.6}@media(max-width:768px){.notification-toast{top:1rem;right:1rem;left:1rem;min-width:auto}}.merged-video-section{background-color:var(--surface-color);border-radius:12px;border:2px solid var(--success-color);overflow:hidden;margin-bottom:2rem;box-shadow:0 4px 12px #4caf5033}.merged-video-header{display:flex;justify-content:space-between;align-items:center;padding:1.5rem;background:linear-gradient(135deg,#4caf5033,#4caf500d);border-bottom:1px solid var(--border-color)}.merged-video-header h2{margin:0;color:var(--success-color);font-size:1.5rem}.merged-video-container{padding:2rem;background-color:#000;display:flex;justify-content:center;align-items:center}.merged-video-player{width:100%;max-height:70vh;border-radius:8px;box-shadow:0 4px 20px #00000080}@media(max-width:768px){.merged-video-header{flex-direction:column;gap:1rem;align-items:stretch}.merged-video-header 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.btn{flex:1 1 auto}.btn-regenerate-batch{width:100%}}.image-container{position:relative;width:100%;overflow:hidden}.image-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(to bottom,rgba(0,0,0,.7),transparent 40%,transparent 60%,rgba(0,0,0,.7));display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s ease;pointer-events:none}.image-container:hover .image-overlay{opacity:1;pointer-events:auto}.btn-replace-image{background-color:#007bffe6;color:#fff;border:2px solid white;padding:.75rem 1.5rem;font-size:1rem;font-weight:600;border-radius:8px;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 12px #0000004d;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);white-space:nowrap}.btn-replace-image:hover{background-color:#005bbbf2;transform:scale(1.05);box-shadow:0 6px 16px #0006}.btn-replace-image:active{transform:scale(.98)}@media(max-width:768px){.image-overlay{opacity:1;background:linear-gradient(to 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#c2185b;--card-shadow: rgba(233, 30, 99, .4)}.mode-card-teal{--card-color-1: #1abc9c;--card-color-2: #16a085;--card-shadow: rgba(26, 188, 156, .4)}.checkbox-container{display:flex;align-items:center;background:linear-gradient(135deg,#ffffff14,#ffffff08);border:2px solid rgba(255,255,255,.1);border-radius:12px;padding:1rem 1.25rem;cursor:pointer;transition:all .3s ease;position:relative;overflow:hidden}.checkbox-container:hover{background:linear-gradient(135deg,#ffffff1f,#ffffff0d);border-color:var(--primary-color);transform:translateY(-2px);box-shadow:0 4px 12px #0003}.modern-checkbox{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:24px;height:24px;border:2px solid var(--border-color);border-radius:6px;background-color:#ffffff0d;cursor:pointer;position:relative;transition:all .3s 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img{width:100%;height:100%;object-fit:contain;display:block}.detail-video{width:100%;height:100%;object-fit:contain}.image-actions,.video-detail-actions{display:flex;gap:.5rem;flex-wrap:wrap}.image-actions button,.video-detail-actions button,.video-detail-actions a{flex:1;min-width:120px}.prompt-section{display:flex;flex-direction:column;gap:.5rem}.prompt-section label{font-weight:600;color:var(--text-color)}.prompt-section textarea{background-color:#1a1a1a;border:1px solid var(--border-color);border-radius:6px;padding:.75rem;color:var(--text-color);font-family:inherit;resize:vertical;min-height:100px}.prompt-section textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #007bff1a}.no-video-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--text-secondary-color);padding:2rem;text-align:center}.no-video-placeholder p{margin:.5rem 0}@media(max-width:1024px){.cut-detail-content{grid-template-columns:1fr}.cut-detail-modal{width:98%}}@media(max-width:768px){.image-click-hint{opacity:1;background:linear-gradient(to top,rgba(0,0,0,.9),transparent)}.video-status-badge{font-size:.75rem;padding:.25rem .6rem}}.ref-image-preview{width:24px;height:24px;object-fit:cover;border-radius:4px;transition:transform .2s ease,box-shadow .2s ease,z-index .2s ease;cursor:zoom-in;position:relative;z-index:1}.ref-image-preview:hover{transform:scale(8) translate(-10px,-5px);box-shadow:0 4px 15px #000c;z-index:1000}