v3.26.1
Property and equipment, net - Schedule of property and equipment, net (Details)
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Property and equipment, net      
Gross carrying amount ¥ 105,369,638   ¥ 113,494,460
Less: accumulated depreciation (100,329,775)   (106,401,031)
Property and equipment, net 5,039,863 $ 720,691 7,093,429
Computer and transmission equipment      
Property and equipment, net      
Gross carrying amount 75,334,495   82,847,892
Leasehold improvements      
Property and equipment, net      
Gross carrying amount 27,348,008   27,348,008
Furniture and office equipment      
Property and equipment, net      
Gross carrying amount 2,276,935   2,888,360
Motor vehicles      
Property and equipment, net      
Gross carrying amount ¥ 410,200   ¥ 410,200