[Style] Original alpine disaster thriller, photoreal ice physics, desaturated daylight, large-format cinematic composition, tense practical sound design.
[Duration] 15 seconds.
[00:00-00:05] A silver passenger train crosses a narrow bridge inside a vast frozen canyon. A hairline fracture races through the glacier wall beside it, faster than the train.
[00:05-00:10] Inside the front cabin, the engineer sees chunks of ice falling onto the tracks. He pushes the control lever forward while passengers turn toward a growing thunder behind them. The camera vibrates with the rails.
[00:10-00:13] Low side angle. The bridge begins collapsing section by section as the train accelerates. Ice blocks explode against steel supports and fill the air with crystalline dust.
[00:13-00:15] The final carriage clears the bridge by inches. The camera remains behind as the entire crossing disappears into the blue abyss, leaving only drifting snow and silence.

[Rights & IP Constraints] Use only original fictional characters, locations, products, packaging, interfaces, symbols, costumes, vehicles, and architecture. No logos, trademarks, brand names, copyrighted characters, franchise-specific designs, celebrity likenesses, living-artist style imitation, copyrighted music, or recognizable branded trade dress. Any visible text must be generic and newly invented.