Summary of significant accounting policies (Tables)
|
12 Months Ended |
Dec. 31, 2025 |
|---|
| Accounting Policies [Abstract] |
|
| Schedule of estimated useful lives of property and equipment, net |
| Schedule of estimated useful lives of property and equipment, net |
|
|
|
| |
|
Useful Life |
|
| Office equipment |
|
3 years |
|
| Office furniture and fixtures |
|
3 – 5 years |
|
| Vehicles |
|
3 – 5 years |
|
| Leasehold improvements |
|
lesser of lease term or expected useful life |
|
|
| Schedule of disaggregation of revenue |
| Schedule of disaggregation of revenue |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
December 31,
2023 |
|
|
December 31,
2024 |
|
|
December 31,
2025 |
|
|
December 31,
2025 |
|
| |
|
RMB |
|
|
RMB |
|
|
RMB |
|
|
USD |
|
| Central processing advertising algorithm services |
|
|
569,906,586 |
|
|
|
541,487,420 |
|
|
|
422,045,319 |
|
|
|
60,045,146 |
|
| Sales of intelligent chips |
|
|
10,109,828 |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
| Total revenues |
|
|
580,016,414 |
|
|
|
541,487,420 |
|
|
|
422,045,319 |
|
|
|
60,045,146 |
|
|
| Schedule of revenue by timing of transfer of goods or services |
| Schedule of revenue by timing of transfer of goods or services |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
December 31,
2023 |
|
|
December 31,
2024 |
|
|
December 31,
2025 |
|
|
December 31,
2025 |
|
| |
|
RMB |
|
|
RMB |
|
|
RMB |
|
|
USD |
|
| Goods and services transferred at a point in time |
|
|
580,016,414 |
|
|
|
414,763,523 |
|
|
|
284,699,784 |
|
|
|
40,504,749 |
|
| Services transferred over time |
|
|
- |
|
|
|
126,723,897 |
|
|
|
137,345,535 |
|
|
|
19,540,397 |
|
| Total revenues |
|
|
580,016,414 |
|
|
|
541,487,420 |
|
|
|
422,045,319 |
|
|
|
60,045,146 |
|
|
| Schedule of revenue by geographic locations |
| Schedule of revenue by geographic locations |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
December 31,
2023 |
|
|
December 31,
2024 |
|
|
December 31,
2025 |
|
|
December 31,
2025 |
|
| |
|
RMB |
|
|
RMB |
|
|
RMB |
|
|
USD |
|
| Mainland PRC revenues |
|
|
540,294,309 |
|
|
|
414,763,523 |
|
|
|
284,699,784 |
|
|
|
40,504,749 |
|
| Hong Kong revenues |
|
|
29,612,277 |
|
|
|
126,723,897 |
|
|
|
137,345,535 |
|
|
|
19,540,397 |
|
| International revenues |
|
|
10,109,828 |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
| Total revenues |
|
|
580,016,414 |
|
|
|
541,487,420 |
|
|
|
422,045,319 |
|
|
|
60,045,146 |
|
|
| Schedule of noncontrolling interests |
| Schedule of noncontrolling interests |
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
December 31,
2024 |
|
|
December 31,
2025 |
|
|
December 31,
2025 |
|
| |
|
RMB |
|
|
RMB |
|
|
USD |
|
| Shanghai Weimu |
|
|
4,495,040 |
|
|
|
2,512,517 |
|
|
|
357,460 |
|
| Viwo Tech |
|
|
13,092,921 |
|
|
|
28,729,950 |
|
|
|
4,087,462 |
|
| Total noncontrolling interests |
|
|
17,587,961 |
|
|
|
31,242,467 |
|
|
|
4,444,922 |
|
|