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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- 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 from Continuing Operations (Details) ¥ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2025 CNY (¥)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 CNY (¥)	Dec. 31, 2023 CNY (¥)
Schedule of Net Revenues from Continuing Operations [Line Items]
Total net revenues	¥ 1,039	$ 149
Brain-Computer Interface (BCI) revenue [Member]
Schedule of Net Revenues from Continuing Operations [Line Items]
Total net revenues	1,040
Business taxes and surcharges [Member]
Schedule of Net Revenues from Continuing Operations [Line Items]
Total net revenues	¥ (1)