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Create a 15-second horizontal animated closing-time vignette using the original adult clerk, mask, and office palette requested. Keep the mask rigid and unchanged; express emotion through posture and timing rather than a moving mask mouth. Use an invented office with a ledger, a key rack, and one tall window, without franchise symbols or readable signage. Beat one (0–5s): a medium tracking shot moves beside the clerk as they close a ledger and straighten the desk lamp; hear a soft page flutter and a distant clock tick. Beat two (5–10s): continue the same shot as the clerk hangs a brass key on its hook and switches off the desk lamp. Cool window light gradually becomes the main light; keep the desk and rack in the same spatial relationship. Beat three (10–15s): the clerk takes two unhurried steps to the window, folds both hands behind their back, and tips the mask slightly upward toward the first evening star. Hold the silhouette for two seconds with fabric rustle and quiet street ambience. No identity reveal, turnstile, dialogue, or closing title. User request: An adult clerk wearing an original ivory moth mask and a charcoal coat closes a small teal office for the day, ending beside a tall window under the first evening star.