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v3.25.3

Short-Term Investments (Details) | 6 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2025 CNY (¥) | Jun. 30, 2024 CNY (¥) | Jun. 30, 2025 USD ($) | Dec. 31, 2024 CNY (¥)
Short-Term investments [Line Items] |  |  |  |
Short-term investments | ¥ 4,565,436 |  | $ 637,310 | ¥ 4,526,957
Investment income |  | ¥ 13,739 |  |
Minimum [Member] |  |  |  |
Short-Term investments [Line Items] |  |  |  |
Investment rate of return | 2.60% |  |  |
Maximum [Member] |  |  |  |
Short-Term investments [Line Items] |  |  |  |
Investment rate of return | 4.35% |  |  |

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