A dull blue jacket, oversize trousers, a Communist Party member pin adding a splash of red on the chest, a small briefcase in hand. It’s the typical dress of the typical Chinese official, and has long been the very opposite of the look that many young Chinese strive for. But now the cadre look is cool. On Chinese social media platforms where trendsetters trade fashion tips, young people — mostly men — have been sharing pictures of themselves dressed like their strait-laced, middle-aged dads working in Communist Party offices. They…