What is the fine-grained topic of the following text: From a resort/beach theme to a more rustic, home lifestyle and lastly, to an urban opulence, the evolution of style in the “apartment store” differentiated it from department stores or single brand corners because it virtually had the fingerprints of the designer all over the place where a guest can imagine using the product and can buy anything he sees. Only return the topic.
Evolution of style in apartment stores