v3.26.1
INCOME TAXES - Current and deferred portion (Details)
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
CNY (¥)
INCOME TAXES        
Current tax expenses ¥ 30,835   ¥ 1,130 ¥ 13
Deferred tax expenses 0   0 645
Income tax expenses ¥ 30,835 $ 4,409 ¥ 1,130 ¥ 658