General reserve fund after tax profits percentage.

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Percentage of registered capital rate.

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Percentage of statutory surplus rate.

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Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.

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Amount of cash and cash equivalent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate.

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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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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency.

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Amount of cash inflow (outflow) from operating activity, including, but not limited to, discontinued operation. Operating activity includes, but is not limited to, transaction, adjustment, and change in value not defined as investing or financing activity.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Summary of Significant Accounting Policies (Details)	6 Months Ended
Summary of Significant Accounting Policies (Details)	Jun. 30, 2026 CNY (¥)	Jun. 30, 2026 USD ($)	Jun. 30, 2025 CNY (¥)	Jun. 30, 2026 USD ($)	Dec. 31, 2025 CNY (¥)
Summary of Significant Accounting Policies [Line Items]
Contract liabilities (in Yuan Renminbi)	¥ 3,023,995
Net loss (in Yuan Renminbi)	(13,525,763)	$ (1,993,440)	¥ (8,533,557)
Accumulated deficit (in Yuan Renminbi)	(354,599,377)			$ (47,743,918)	¥ (341,073,614)
Cash used in operating activities (in Yuan Renminbi)	(20,914,522)	$ (3,082,407)	(13,153,333)
Cash and cash equivalents (in Yuan Renminbi)	¥ 17,728,773
Statutory surplus rate	10.00%	10.00%
Registered capital	50.00%	50.00%
General reserve fund after tax profits percentage	10.00%	10.00%
General reserve fund	50.00%	50.00%
Statutory reserves (in Yuan Renminbi)	¥ 23,573,981		23,557,710	$ 3,318,034	¥ 23,573,981
Working capital	¥ 81,771,254
RMB [Member]
Summary of Significant Accounting Policies [Line Items]
Convenience translation rate	6.8751			6.8751
United States of America, Dollars
Summary of Significant Accounting Policies [Line Items]
Convenience translation rate	1			1
Customer Concentration Risk [Member] \| One Customer [Member] \| Contract Liabilities [Member]
Summary of Significant Accounting Policies [Line Items]
Net loss (in Yuan Renminbi)			¥ 8,900,095
Customer Concentration Risk [Member] \| One Customer [Member] \| Revenue Benchmark [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration risk percentage	32.00%	32.00%	34.00%
Customer Concentration Risk [Member] \| One Customer [Member] \| Accounts Receivable [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration risk percentage	78.00%	78.00%	52.00%
Customer Concentration Risk [Member] \| Two Customer [Member] \| Contract Liabilities [Member]
Summary of Significant Accounting Policies [Line Items]
Net loss (in Yuan Renminbi)			¥ 13,567,087
Customer Concentration Risk [Member] \| Two Customer [Member] \| Accounts Receivable [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration risk percentage	13.00%	13.00%	23.00%
Customer Concentration Risk [Member] \| Three Customer [Member] \| Accounts Receivable [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration risk percentage	2.00%	2.00%	15.00%
One Supplier [Member] \| Supplier Concentration Risk [Member] \| Purchases [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration risk percentage	100.00%	100.00%	45.00%
One Supplier [Member] \| Supplier Concentration Risk [Member] \| Accounts Payable [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration risk percentage	79.00%	79.00%	41.00%
One Supplier [Member] \| Supplier Concentration Risk [Member] \| Short-Term Prepayments [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration risk percentage	39.00%	39.00%	67.00%
Two Supplier [Member] \| Customer Concentration Risk [Member] \| Revenue Benchmark [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration risk percentage	31.00%	31.00%
Two Supplier [Member] \| Supplier Concentration Risk [Member] \| Purchases [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration risk percentage			25.00%
Two Supplier [Member] \| Supplier Concentration Risk [Member] \| Short-Term Prepayments [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration risk percentage			33.00%
Three Supplier [Member] \| Supplier Concentration Risk [Member] \| Purchases [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration risk percentage			14.00%
PRC [Member]
Summary of Significant Accounting Policies [Line Items]
Accounts receivable (in Yuan Renminbi)	¥ 39,555,891