a futuristic train travels in an underground or submerged corridor, showcasing advanced engineering and a high-tech

futuristic train tracks underground submerged corridor streamlined aerodynamic white silver speed modern technology large windows interior seating advanced engineering hightech science fiction neon lights blue orange nighttime cityscape rain wet sheen enclosed urban space artistic direction moody immersion story world abstract art background texture pattern design colorful creative vibrant geometric shapes lines concept dynamic energy motion graphic visual ai generated