FILE — Employees take naps during lunch hour at Tencent in Guangzhou, China, Dec. 24, 2013. Rank-and-file tech workers, discouraged by a weakened job market and downbeat about their odds of joining the digital aristocracy, are organizing online against what in China is called the “996” culture: 9 a.m. to 9 p.m., six days a week. (Qilai Shen/The New York Times)