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Intangible assets, net (Tables)
 12 Months Ended
Dec. 31, 2024
Intangible Assets, Net (Excluding Goodwill) [Abstract]  
Schedule of intangible assets, net In determining the useful life of an intangible
asset, the Group considers the factors such as the expected use of the asset by the Group, and any legal, regulatory, or contractual provisions that may limit the useful life:
CategoryEstimated useful life
Software3 years
Distribution and licensing rights
3 - 10 years
Patent 3 years
Trademarks10 years
Developed technology10 years
Intangible assets, net consisted of the following:
As of December 31,
20232024
RMBRMB
Software121,950 164,369 
Distribution and licensing rights143,725 185,363 
Trademark139 270 
Patent2,655 2,655 
Developed technology (refer to Note 3.c)— 138,569 
Intangible assets268,469 491,226 
Less: accumulated amortization(86,183)(177,871)
Less: impairment(2,945)(3,578)
Intangible assets, net179,341 309,777 
Schedule of amortization expenses on intangible assets allocated to expense items
Amortization of intangible assets was allocated as follows:
Year ended December 31,
202220232024
RMBRMBRMB
Cost of revenues— 7,985 48,160 
Selling, general and administrative expenses9,987 10,047 8,882 
Research and development expenses14,045 13,808 34,422 
Total depreciation expenses24,032 31,840 91,464 
Schedule of unrealized loss on investments
Impairment loss on obsolete and damaged intangible assets was allocated as follows:
Year ended December 31,
202220232024
RMBRMBRMB
Selling, general and administrative expenses— 2,662 648 
Research and development expenses— 283 — 
Total impairment loss— 2,945 648 
Schedule of finite-lived intangible assets, future amortization expense
Estimated amortization expenses relating to the existing intangible assets with finite lives for the next five years is as follows:
As of December 31,
RMB
2025101,054 
202685,668 
202730,450 
202818,220 
202917,934