v3.26.1
Equity settled share-based payments - Share options (Details) - CNY (¥)
6 Months Ended 12 Months Ended
Jan. 16, 2020
Dec. 31, 2023
Dec. 31, 2025
Dec. 31, 2024
Jun. 30, 2023
Equity settled share-based payments          
Equity-settled share-based payment expenses         ¥ 613,000
Share option          
Equity settled share-based payments          
Equity-settled share-based payment expenses   ¥ 7,593,000 ¥ 109,000 ¥ 5,879,000 ¥ 33,306,000
Share option | Vesting tranche one          
Equity settled share-based payments          
Vesting percentage 20.00%        
Share option | Vesting tranche two          
Equity settled share-based payments          
Vesting percentage 20.00%        
Share option | Vesting tranche three          
Equity settled share-based payments          
Vesting percentage 20.00%        
Share option | Vesting tranche four          
Equity settled share-based payments          
Vesting percentage 20.00%        
Share option | Vesting tranche five          
Equity settled share-based payments          
Vesting percentage 20.00%