Prepayment and Other Assets, Net - Schedule of Prepayments and Other Assets (Details) ¥ in Thousands, $ in Thousands |
Dec. 31, 2025
CNY (¥)
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Dec. 31, 2025
USD ($)
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Dec. 31, 2024
CNY (¥)
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Dec. 31, 2024
USD ($)
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Dec. 31, 2023
CNY (¥)
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| Schedule of Prepayments and Other Assets [Abstract] | |||||||
| Security deposit | ¥ 2,515 | $ 358 | ¥ 2,660 | ||||
| Prepaid advertising and promotion expenses | [1] | 9,091 | 1,300 | ||||
| Prepaid financial consulting expenses | [1] | 13,986 | 2,000 | ||||
| Prepaid legal expenses | 315 | 45 | |||||
| Technology transfer license fee | 7,000 | 1,001 | 18,100 | ||||
| Others | 26 | 5 | 1,485 | ||||
| Prepayments and other assets | 32,933 | 4,709 | 22,245 | ||||
| Less: other receivable- a related party | (738) | ||||||
| Less: long-term prepayments | (7,014) | (1,003) | (18,698) | ||||
| Less: allowance for credit losses | (252) | (36) | (183) | $ (26) | ¥ (223) | ||
| Prepayments and other current assets, net | ¥ 25,667 | $ 3,670 | ¥ 2,626 | ||||
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