对用户输入的城市名称，自动搜索相关资料，根据下面的模板转换成完整提示词，让 nano banana 2 绘制：

A street-style map of {CITY_NAME} placed on a {MAP_SURFACE}, with a photorealistic miniature version of {CITY_NAME} emerging from it {LANDMARK_1},{LANDMARK_2},{LANDMARK_3}, {NATURE_ELEMENT}, {URBAN_LIFE_ELEMENT}, {ICONIC_TRANSPORT},and {EXTRA_DETAIL}.All elements grow from the map like a 3D urban diorama. Studio soft lighting, cinematic depth, 2:3 format