Alpine Stone Viaduct Night Train 3D Scene

"Nocturne" is a Three.js interactive 3D night scene. A burgundy night train loops around a curved stone arch viaduct, surrounded by conifer forests, a river valley and snowy mountains. Warm carriage windows contrast with cold moonlight. It includes four camera views, three lighting presets and synthesized railway ambience via Web Audio. The prompt is a long, structured spec that asks for procedural modeling, a single HTML file that runs offline, and self-testing. Well suited to 3D web showcases or miniature-model-style art pieces.