Unlock the Editor’s Digest for freeRoula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter.Xiaohongshu, China’s fastest-growing social media platform, has gained the backing of venture capital firm DST Global in a rare example of foreign investors putting money into a tech sector it has largely shunned since a Beijing crackdown. The photo and video-sharing platform, wildly popular with female city dwellers, arranged stake sales of existing shares in recent weeks t...