They knew the job market would be tough. None were prepared for just how tough it proved to be. China’s economy is struggling through a sustained slowdown, with real estate developers mired in debt, families fearful of spending and entrepreneurs hesitating to take risks. Joblessness levels among young people have hit record highs. We spoke to five young Chinese about what it took to find their jobs amid such uncertainty. They described moving home with their parents, exhausting their savings, taking on unpaid internships or working two jobs. They also…