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SHORT-TERM INVESTMENT (Details) ¥ in Thousands, $ in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jan. 31, 2024 CNY (¥) | Jan. 31, 2024 USD ($) | Dec. 31, 2024 CNY (¥) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 CNY (¥) | Dec. 31, 2022 CNY (¥) | Dec. 31, 2024 USD ($)
SHORT-TERM INVESTMENT |  |  |  |  |  |  |
Total investment consideration | ¥ 204,607 | $ 28,031 | ¥ 204,607 | $ 28,031 | ¥ 0 | ¥ 0 |
Proceeds from disposal of short - term investment |  |  | 77,276 | 10,587 | ¥ 0 | ¥ 0 |
Short-term investment |  |  | 134,621 |  |  |  | $ 18,443
Gain (loss) on investment |  |  | ¥ 7,290 | $ 999 |  |  |

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