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Related Party Balances And Transactions - Schedule of the Major Related Parties Transactions (Detail) - CNY (¥)
¥ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Shanghai China Europe [Member]      
Related Party Transaction [Line Items]      
Purchase of service ¥ 3,561 ¥ 0 ¥ 0
Suzhou Yunzheng [Member]      
Related Party Transaction [Line Items]      
Purchase of service 836 404 245
Shanghai Fenghe [Member]      
Related Party Transaction [Line Items]      
Loan to related parties 2,000 0 0
Xiaoyan Lu [Member]      
Related Party Transaction [Line Items]      
Advances for the Group's operation 1,943 0 0
Collection of unused advances for the Group's operation 1,455 0 0
Yazhou Wu [Member]      
Related Party Transaction [Line Items]      
Advances for the Group's operation 3,300 0 0
Collection of unused advances for the Group's operation 3,300 0 0
Sales Channel, Directly to Consumer [Member] | Shanghai China Europe [Member]      
Related Party Transaction [Line Items]      
Sales of service 219 0 0
Sales Channel, Directly to Consumer [Member] | Suzhou Yunzheng [Member]      
Related Party Transaction [Line Items]      
Sales of service ¥ 40 ¥ 57 ¥ 0