v3.26.1
Trade receivables, net (Details) - CNY (¥)
¥ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Gross carrying amount [member]    
Trade receivables, net (Details) [Line Items]    
Impairment allowances ¥ 71.1 ¥ 52.3