With his last suitcase, stuffed full of instant noodles, Lin Xiaoshuai dragged himself to the entrance of the apartment building in the residential complex he had just rented. He slumped down, drenched in sweat. The old complex had no elevator, and climbing six flights of stairs had nearly taken the life out of him. He was cursing the agent for not mentioning the “no elevator” situation when deafening square-dance music blared from downstairs. The tune of “The Most Dazzling Folk Style,” mixed with the aunties' chatter, cut through the air like a power drill at a construction site.