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Restricted Net Assets (Details) - CNY (¥)
¥ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Restricted Net Assets    
Appropriation of after-tax income to general reserve fund or statutory surplus reserve fund (as a percentage) 10.00%  
Transfer of assets, restricted portion ¥ 150,000 ¥ 161,680