v3.25.3
Capital and reserves (Details) - 6 months ended Jun. 30, 2025
CNY (¥)
shares
$ / shares
Disclosure Authorized Share Capital [Line Items]    
Issuance of Class A ordinary shares for exercise of share options ¥ 49,653,000  
Proceeds from issuance of Class A ordinary shares for exercise of share options 25,534,000  
Share premium [member]    
Disclosure Authorized Share Capital [Line Items]    
Issuance of Class A ordinary shares to settle vested RSUs (3,000)  
Issuance of Class A ordinary shares for exercise of share options 49,652,000  
Class A ordinary shares issued to depositary bank ¥ (4,000)  
RSU's    
Disclosure Authorized Share Capital [Line Items]    
Number of equity instruments vested | shares 62,437,467  
Number of shares withheld to fund withholding tax obligation | shares 1,250,674  
Withholding tax payable amount ¥ 50,800,000  
Class A Ordinary Shares [Member]    
Disclosure Authorized Share Capital [Line Items]    
Number of stock awards issued | shares 61,186,793  
Par value per share | $ / shares   $ 0.0001
Issuance of Class A ordinary shares to settle vested RSUs ¥ 3,000  
Number of stock issued, shares, share options exercised | shares 11,164,145  
Issuance of Class A ordinary shares for exercise of share options ¥ 1,000  
Proceeds from issuance of Class A ordinary shares for exercise of share options ¥ 25,500,000  
Shares issued during the period related to vesting of restricted stock awards and share options | shares 60,000,000  
Issuance of restricted stock award and share options ¥ 0  
Class A ordinary shares issued to depositary bank ¥ 4,000  
Shares issued as on date related to vesting of restricted stock awards | shares 31,956,201  
Shares issued as on date related to vesting of share options | shares 4,024,221  
Class A Ordinary Shares [Member] | Share premium [member]    
Disclosure Authorized Share Capital [Line Items]    
Issuance of Class A ordinary shares to settle vested RSUs ¥ (1,000)