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Summary of Significant Accounting Policies (Details) - Schedule of Net Revenues
12 Months Ended
Dec. 31, 2023
CNY (¥)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
CNY (¥)
Dec. 31, 2021
CNY (¥)
Schedule of Estimated Useful Lives of Intangible Assets [Line Items]        
Net revenues ¥ 78,335,376 $ 11,060,101 ¥ 983,168,898 ¥ 39,440,897
Product sales revenue [Member]        
Schedule of Estimated Useful Lives of Intangible Assets [Line Items]        
Net revenues 71,321,462   920,653,911 39,440,897
Service revenue [Member]        
Schedule of Estimated Useful Lives of Intangible Assets [Line Items]        
Net revenues ¥ 7,013,914   ¥ 62,514,987