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Lease (Details 1) - CNY (¥)
¥ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Lease    
Opening carrying amount ¥ 193 ¥ 0
Addition 1,165 443
Termination of leases (193)  
Amortization (520) (250)
Closing carrying amount ¥ 645 ¥ 193