v3.26.1
Prepaid expenses and other current assets (Tables)
12 Months Ended
Dec. 31, 2025
Prepaid expenses and other current assets  
Summary of prepaid expenses and other current assets

As of

December 31, 

As of December 31, 

  ​ ​ ​

2024

  ​ ​ ​

2025

  ​ ​ ​

2025

RMB

RMB

US$

Prepaid expenses(1)

10,679,051

21,414,229

3,062,194

Input VAT to be deducted

17,918,681

14,090,676

2,014,940

Others

5,480,762

8,041,902

1,149,977

Total prepaid expenses and other current assets

34,078,494

43,546,807

6,227,111

(1)Prepaid expenses mainly relate to prepaid service fee to the Group’s service providers.