v3.26.1
RELATED PARTIES BALANCES AND TRANSACTIONS - Related parties with transactions and related party relationships (Details) - Related party - Jianbiao Dai
Mar. 31, 2026
Shanghai Yiyun Information Service Co., Ltd  
RELATED PARTIES BALANCES AND TRANSACTIONS  
Percentage of ownership (%) 60.00%
Shanghai Longruan Electronics Group Co., Ltd  
RELATED PARTIES BALANCES AND TRANSACTIONS  
Percentage of ownership (%) 80.00%