Qipao Evolution Short Film Prompt for Seedance 2.0

This is a detailed, multi-scene prompt for Seedance 2.0 designed to generate a 15-second commercial short film depicting the evolution of the Qipao (Cheongsam) from the late Qing Dynasty to the 1930s Golden Age. It specifies cinematic style, pacing, music, character development, core transition mechanics, and provides a full storyboard breakdown with scene descriptions, lighting, costume details, and camera movements for four distinct time periods.