当代古典比例：立面节奏与石材的克制

Design an urban mixed-use building inspired by Galerie Am Kupfergraben. Organize facades through balanced vertical rhythms, classical proportions, stone materials, discreet entrances, and elegant architectural restraint into a timeless city presence. Tall narrow window openings of varying width composed in a calm asymmetric rhythm, warm limestone with deep reveals casting soft shadow, the entrance almost hidden within the rhythm, no signage or expression of structure, soft grey daylight, frontal eye-level composition, 35mm lens, ultra photorealistic, 8K