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12px;background:var(--primary);color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:.85rem}.audio-play-btn:hover{background:var(--primary-dark)}.timeline-visualizer{margin-bottom:24px}.time-ruler{display:flex;justify-content:space-between;margin-bottom:8px;padding:0 4px}.time-mark{font-size:.7rem;color:var(--text-muted);font-family:monospace}.scenes-track{height:40px;background:var(--bg-hover);border-radius:6px;position:relative;overflow:hidden}.scene-block{position:absolute;height:100%;background:var(--primary);display:flex;align-items:center;padding:0 8px;border-radius:4px;overflow:hidden}.scene-block 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