Agencies Hugely popular online games and celebrity culture in China are the latest targets in the ruling Communist Party’s campaign to encourage the public to fall in line with its vision for a powerful, more wholesome country. The message? Play less, study and work more. Rules that take effect Wednesday cut the amount of game time children are allowed by more than two-thirds to three hours a week. That coincides with a campaign to curb what the party sees as unhealthy attention to celebrities online. “Adolescents are the future of the motherland,” the Press and Publications Administration said in a...