v3.26.1
ADDITIONAL INFORMATION OF THE PARENT COMPANY - CONDENSED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (INCOME) - Additional (Details) - CNY (¥)
¥ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Condensed Statement of Income Captions [Line Items]      
Other comprehensive income (loss), tax ¥ 0 ¥ 0 ¥ 0
Parent company      
Condensed Statement of Income Captions [Line Items]      
Other comprehensive income (loss), tax ¥ 0 ¥ 0 ¥ 0