v3.26.1
SCHEDULE I-ADDITIONAL INFORMATION OF THE PARENT COMPANY - CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Details)
 12 Months Ended
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
CNY (¥)
SCHEDULE I-ADDITIONAL INFORMATION OF THE PARENT COMPANY        
General and administrative expenses ¥ (137,656,630) $ (19,684,636) ¥ (204,428,800) ¥ (237,755,845)
Equity loss of subsidiaries and VIEs (1,927,859) (275,680) (4,001,129) (31,610,752)
Other operating income (expenses), net 8,426,888 1,205,029 (200,174,118) 32,314,541
Interest income 64,330,349 9,199,118 263,052,300 284,982,128
Foreign exchange gain, net (517,288) (73,971) 1,233,807 125,893
Net income (loss) (29,081,925) (4,158,660) (306,810,286) 35,517,634
Foreign currency translation adjustment (42,854,121) (6,128,058) 72,141,058 93,256,170
Comprehensive income (loss) attributable to the ordinary shareholders (71,936,046) (10,286,718) (234,669,228) 128,773,804
Parent Company        
SCHEDULE I-ADDITIONAL INFORMATION OF THE PARENT COMPANY        
General and administrative expenses (46,198,420) (6,606,286) (38,585,122) (42,927,343)
Equity loss of subsidiaries and VIEs (39,512,619) (5,650,230) (502,190,943) (190,965,494)
Other operating income (expenses), net 4,761,206 680,843 (7,317,312) 19,838,460
Interest income 51,867,908 7,417,013 241,283,091 249,448,848
Foreign exchange gain, net       123,163
Net income (loss) (29,081,925) (4,158,660) (306,810,286) 35,517,634
Foreign currency translation adjustment (42,854,121) (6,128,058) 72,141,058 93,256,170
Comprehensive income (loss) attributable to the ordinary shareholders ¥ (71,936,046) $ (10,286,718) ¥ (234,669,228) ¥ 128,773,804