v3.26.1
NET REVENUES - Accounts receivable and contract balances (Details)
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
CNY (¥)
Accounts receivable        
Opening Balance ¥ 765,027   ¥ 524,818 ¥ 485,044
Increase, net 497,193   240,209 39,774
Ending Balance 1,262,220 $ 180,495 765,027 524,818
Contract assets        
Opening Balance 9,909   19,688 12,600
Increase (decrease), net (9,909)   (9,779) 7,088
Ending Balance 0 0 9,909 19,688
Contract liabilities        
Opening Balance 32,994   79,925 40,378
Increase (decrease), net (11,975)   (46,931) 39,547
Ending Balance 21,019 $ 3,006 32,994 79,925
Contract liabilities, revenue recognized ¥ 29,964   ¥ 72,585 ¥ 37,111