Nightmare Express Cinematic Train Outbreak Sequence

30-second cinematic train outbreak sequence. Character A's face, identity, hair, and outfit match the reference throughout. 0–3s: Character A sits pale and exhausted as the train races through the night. Faint scratching comes from the luggage compartment above. The cabin lights flicker, casting shadows across her face. 3–7s: The lights suddenly die. A heavy thud and muffled cry echo through the carriage. Passengers activate phone flashlights, revealing terrified faces and something moving quickly between the seats. 7–11s: A flashlight reveals Character A with blood around her lips and chin. She turns toward the aisle. The train exits the tunnel and the lights return, revealing a passenger collapsed by the window with fresh bite marks on his neck. 11–14s: The injured passenger convulses violently. Dark veins spread across his neck and face. His bloodshot eyes snap open as he suddenly attacks another passenger. 14–19s: Chaos erupts. Passengers scramble over seats and luggage toward the connecting door. An infected passenger grabs someone's ankle. Survivors pull them free and force the door shut as infected bodies rush toward it. 19–22s: Infected faces and hands slam against the door window. Cracks spread across the glass. A terrified survivor grabs an emergency hammer and smashes the window as the infected pound against the door. 22–26s: The train approaches another tunnel. Emergency lights pulse as the carriage shakes. Survivors stack luggage and seats against the connecting door, desperately barricading themselves while pounding continues from behind. 26–30s: Close-up of Character A staring toward the approaching tunnel. She notices faint movement behind the barricade. Cut to a wide exterior shot of the train speeding into darkness, windows flickering between light and shadow. Unresolved cinematic outbreak dread.