v3.26.3
Description of Business and Organization - Schedule of Financial Information for the VIE (Details)
 6 Months Ended
Jun. 30, 2026
USD ($)
Jun. 30, 2026
CNY (¥)
Jun. 30, 2025
CNY (¥)
Jun. 30, 2026
CNY (¥)
Dec. 31, 2025
CNY (¥)
Variable Interest Entity [Line Items]          
Current assets $ 10,868,028     ¥ 73,740,665 ¥ 104,966,626
Non-current assets 350,515     2,378,273 2,590,800
Total assets 11,218,543     76,118,938 107,557,426
Current liabilities 31,084,020     210,908,183 218,168,136
Non-current liabilities 54,731,034     371,355,540 370,685,951
Total liabilities 85,815,054     582,263,723 588,854,087
Net deficit (69,333,509)     (470,434,791) (453,971,266)
Net revenues 27,265,664 ¥ 185,000,259 ¥ 174,469,851    
Net loss (35,101,942) (238,170,188) (19,885,492)    
Net cash (used in) provided by operating activities 1,485,108 10,076,600 (14,987,658)    
Net cash used in investing activities (9,296) (63,078) (512,200)    
Net cash provided by (used in) financing activities (687,155) (4,662,408) 13,588,046    
Variable Interest Entity, Primary Beneficiary [Member]          
Variable Interest Entity [Line Items]          
Current assets 9,886,047     67,077,820 46,138,392
Non-current assets 350,515     2,378,273 2,590,800
Total assets 10,236,562     69,456,093 48,729,192
Current liabilities 57,953,875     393,222,831 264,182,042
Non-current liabilities 54,718,275     371,268,969 370,685,951
Total liabilities 112,672,150     764,491,800 634,867,993
Net deficit (102,435,588)     ¥ (695,035,707) ¥ (586,138,801)
Net revenues 29,314,873 198,904,347 174,469,851    
Net loss (16,000,350) (108,563,975) (19,885,492)    
Net cash (used in) provided by operating activities 333,421 2,262,292 (16,775,572)    
Net cash used in investing activities (9,297) (63,078) (512,200)    
Net cash provided by (used in) financing activities $ (689,512) ¥ (4,678,408) ¥ 15,270,864