《心跳·机械心》——未来科幻

futuristic cinematic short film, inside a dark void a glowing biomechanical heart pulsates with neon energy, metallic veins expand like city grids, synchronized with heartbeat sound, camera tracking through glowing tunnels of light resembling blood vessels, cut to human face merging with cybernetic implants, holographic pulse waves flashing in the eyes, mechanical and organic fusion, surreal transitions, heartbeat growing stronger, heart expands into cosmic nebula, light waves spreading across galaxies, camera pullback reveals entire universe pulsing like a giant heart, epic and awe-inspiring tone, ultra-detailed 8K sci-fi visuals, cyberpunk and surreal cosmic atmosphere, dramatic lighting and epic soundtrack mood.