v3.26.1
Share-based compensation (Tables)
12 Months Ended
Dec. 31, 2025
Share-based compensation  
Summary of share option activity

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Weighted 

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average 

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remaining 

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Aggregated 

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Weighted average

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Weighted average 

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contractual 

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intrinsic 

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Number of options

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 exercise price

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grant date fair value

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term

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value

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RMB

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RMB

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Years

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RMB

Balance, December 31, 2023

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9,174,361

 

—

 

17.44

 

4.32

 

132,873,059

Exercised

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(254,326)

 

—

 

28.02

 

2.93

 

3,938,396

Forfeited

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Balance, December 31, 2024

 

8,920,035

 

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33.17

 

3.42

 

183,603,721

Exercised

 

(164,628)

 

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26.91

 

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4,685,077

Forfeited

 

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—

 

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Balance, December 31, 2025

 

8,755,407

 

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32.67

 

2.34

 

217,351,278

Vested and Exercisable as of December 31, 2025

 

8,755,407

 

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32.67

 

2.34

 

217,351,278

Summary of allocated share-based compensation expense

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For the years ended December 31, 

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2023

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2024

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2025

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RMB

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RMB

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RMB

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US$

Sales and marketing

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265,862

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299,806

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General and administrative

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4,649,664

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1,754,168

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Research and development

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20,256

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203,821

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Total

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4,935,782

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2,257,795

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