By Lin Lili, Huang Xiaohui, Wang Xinyue On a weekend night, on an open stage in the Ninth Street of Guanyinqiao business area, Jiangbei district, southwest China’s Chongqing municipality, people were singing and dancing, creating a lively atmosphere. “We come here to listen to music, enjoy food, and go shopping. The Ninth Street never sleeps at night,” said Chen Qi, …