Grok Imagine 外星飞碟悬停在霓虹大都市上空提示词

A massive ultra high-tech alien UFO hovering menacingly above a sprawling neon megacity at dusk, its dark obsidian saucer hull bristling with glowing weapon arrays and angular thrusters, ominous red scanning beams slicing downward while pulsating energy rings ripple from its core. 3D futuristic CGI render, electric cyan and magenta palette with deep void blacks and glowing white accents, volumetric God rays piercing toxic fog, intricate layered depth with reflective metallic surfaces and energy crackling. Cinematic low-angle dolly shot rising dramatically to emphasize colossal scale, slow smooth orbiting camera motion with subtle lens flare.