Intangible Assets, Net (Details) ¥ in Thousands, $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2025 CNY (¥)	Jun. 30, 2025 USD ($)	Jun. 30, 2024 CNY (¥)	Dec. 31, 2024 CNY (¥)
Intangible Assets, Net [Abstract]
Amortization expense	¥ 3,480	$ 486	¥ 3,479	¥ 3,479

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets.

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+ Details