Loss Per Share - Summary of net loss per share (Details) ¥ / shares in Units, $ / shares in Units, ¥ in Thousands, $ in Thousands	6 Months Ended
Jun. 30, 2025 CNY (¥) ¥ / shares shares	Jun. 30, 2025 USD ($) $ / shares shares	Jun. 30, 2024 CNY (¥) ¥ / shares shares
Numerator:
Net loss attributable to ordinary shareholders	¥ (53,101)	$ (7,411)	¥ (52,535)
Denominator:
Weighted average number of shares outstanding	896,950,139	896,950,139	83,289,067
Loss per share - basic \| (per share)	¥ (0.06)	$ (0.01)	¥ (0.63)

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

- Definition

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

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+ Details