v3.25.3
Property and equipment (Details) - CNY (¥)
¥ in Millions
6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Disclosure of detailed information about property, plant and equipment [abstract]    
Capital expenditure on property and equipment ¥ 122.0 ¥ 26.8
Disposal of property and equipment included in amounts due from related parties ¥ 1.9 ¥ 0.6