v3.25.2
SHARE-BASED COMPENSATION - Significant assumptions used to estimate the fair value of stock options (Details) - Share options - ¥ / shares
6 Months Ended
Jun. 30, 2025
Jun. 30, 2023
SHARE-BASED COMPENSATION    
Suboptimal exercise factor ¥ 2.8 ¥ 2.8
Risk-free interest rate 4.68% 3.61%
Volatility 51.75% 49.31%
Dividend yield 4.60% 0.80%
Life of option 8 years 10 years