v3.26.1
Summary of Significant Principal Accounting Policies (Schedule of Concentration and Risks) (Details)
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
CNY (¥)
Summary of Significant Principal Accounting Policies        
Net revenues ¥ 9,945,483 $ 1,422,186 ¥ 9,422,229 ¥ 8,812,013
Cost of products ¥ 2,576,012 $ 368,365 2,473,804 2,409,110
Sales Revenue, Net | Customer | Customer A        
Summary of Significant Principal Accounting Policies        
Net revenues     978,678 976,028
Sales Revenue, Net | Customer | Customer A | Maximum        
Summary of Significant Principal Accounting Policies        
Concentration Risk, Percentage 10.00% 10.00%    
Cost of Products | Supplier | B        
Summary of Significant Principal Accounting Policies        
Cost of products ¥ 399,850   ¥ 624,377 ¥ 761,488
Cost of Products | Supplier | C        
Summary of Significant Principal Accounting Policies        
Cost of products ¥ 227,115