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v3.24.1.u1

Summary of Significant Accounting Policies (Details) | 12 Months Ended
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Dec. 31, 2023 CNY (¥) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 CNY (¥) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 CNY (¥) | Dec. 31, 2021 USD ($)
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |  |
cash | ¥ 48,164,664 |  | ¥ 87,811,272 |  |  |
Restricted cash | 417,990 |  | 48,112 |  |  |
Impairment of long-lived assets (in Dollars) | $ |  |  |  |  |  |
Contract liabilities | 107,826,617 |  | 124,469,097 |  |  |
Contract liabilities as revenue | 23,740,945 |  | 804,875,532 |  | ¥ 4,241,270 |
Inventory write-down | 60,767,978 | $ 8,579,776 | 184,073,191 |  | 26,753,768 |
Advertising and promotion cost | 1,278,586 |  | 10,901,200 |  | 992,996 |
Shipping and handling costs | 2,122,358 |  | 4,233,084 |  | 371,769 |
Cost of Revenue [Member] |  |  |  |  |  |
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Inventory write-down | ¥ 60,767,978 |  | ¥ 184,073,191 |  | ¥ 26,753,768 |
United States of America, Dollars |  |  |  |  |  |
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Foreign currency exchange rate translation | 1 |  |  |  |  |
China, Yuan Renminbi |  |  |  |  |  |
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Foreign currency exchange rate translation | 7.0827 |  |  |  |  |

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