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ACCOUNTS RECEIVABLE - Additional Information (Details)
¥ in Thousands, $ in Thousands
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Accounts receivable | Bank borrowings      
ACCOUNTS RECEIVABLE      
Assets pledged as collateral ¥ 18,873 $ 2,699 ¥ 14,745