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v3.25.4

Asset Acquisition (Details) | 1 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Aug. 31, 2023 CNY (¥) | Jul. 31, 2022 CNY (¥) | Jun. 30, 2025 USD ($) | Jun. 30, 2025 CNY (¥) | Jun. 30, 2024 USD ($) | Dec. 31, 2024 USD ($) | Dec. 31, 2024 CNY (¥)
Asset Acquisition [Line Items] |  |  |  |  |  |  |
Ownership percentage |  | 100.00% |  |  |  |  |
Gross consideration | ¥ |  | ¥ 40,000,000 |  |  |  |  |
Paid amount | ¥ | ¥ 5,000,000 | ¥ 10,000,000 |  |  |  |  | ¥ 5,000,000
Unpaid consideration |  |  | $ 2,239,098 | ¥ 16,040,000 |  | $ 1,250,768 | ¥ 8,960,000
Consideration payable, current |  |  | 840,970 |  |  | 801,866 |
Consideration payable noncurrent |  |  | 1,388,878 |  |  | $ 1,338,719 |
Interest expense |  |  | $ 48,115 |  | $ 59,274 |  |

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