Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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+ Details

Summary of Significant Accounting Policies - Schedule of Net Revenues By Geographical Location of Customers (Details)	6 Months Ended
	Jun. 30, 2025 CNY (¥)	Jun. 30, 2025 USD ($)	Jun. 30, 2024 CNY (¥)
Schedule of Net Revenues By Geographical Location of Customers [Line Items]
Net revenues	¥ 8,283,373	$ 1,157,122	¥ 24,739,480
PRC [Member]
Schedule of Net Revenues By Geographical Location of Customers [Line Items]
Net revenues	5,462,221		20,059,137
The United States [Member]
Schedule of Net Revenues By Geographical Location of Customers [Line Items]
Net revenues	946,288		1,019,596
Singapore [Member]
Schedule of Net Revenues By Geographical Location of Customers [Line Items]
Net revenues			3,409,737
Hong Kong [Member]
Schedule of Net Revenues By Geographical Location of Customers [Line Items]
Net revenues	1,249,900
Others [Member]
Schedule of Net Revenues By Geographical Location of Customers [Line Items]
Net revenues	¥ 624,964		¥ 251,010