Can Chinese people buy crypto?

Could you please clarify for me: is it permissible for individuals residing in China to purchase cryptocurrency? Given the complex regulatory environment surrounding this asset class in the country, I'm uncertain whether it's a viable option for Chinese citizens. Could you elaborate on any potential legal constraints or specific steps that might be required for a Chinese national to engage in crypto transactions? Additionally, are there any reliable platforms or exchanges that cater to the Chinese market, facilitating the purchase and holding of cryptocurrency? Thank you for your assistance in clarifying this matter.