Cinematic single continuous shot, vertical 9:16. An empty underground metro platform at golden hour. Thick shafts of warm sunlight cut through cracked glass ceiling panels. Dust floats in the beams. A flock of origami paper birds suddenly bursts from the far tunnel and swirls down the platform toward camera, paper wings catching the light. Slow push-in along the tiled floor. Soft ambient wind and distant train rumble. Photoreal, filmic, no text, no logos, no people.