Generate an image  of a futuristic  cityscape at  dusk, with  sleek, curved  skyscrapers  and neon -lit streets , featuring a  prominent, glowing  AI robot standing  atop a central  skyscraper,  surrounded by a  halo of light , with a  subtle, gradient  blue-purple color  scheme and a  sense of dynamic  movement, as  if the city  is alive and  pulsing with  energy.