v3.26.3
Taxes - Schedule of Reconciliation of Differences Between Statutory Income Tax (Details)
6 Months Ended
Jun. 30, 2026
USD ($)
Jun. 30, 2026
CNY (¥)
Jun. 30, 2025
CNY (¥)
Effective Income Tax Rate Reconciliation, Percent [Abstract]      
PRC income tax statutory rate 25.00% 25.00% 25.00%
PRC income tax statutory rate (in Dollars and Yuan Renminbi) $ 25 ¥ 25 ¥ 25
Computed income tax benefit with PRC statutory income tax rate 25.00% 25.00% 25.00%
Computed income tax benefit with PRC statutory income tax rate (in Dollars and Yuan Renminbi) $ (8,773,012) ¥ (59,525,764) ¥ (4,971,373)
Non-deductible expenses (0.59%) (0.59%) (8.33%)
Non-deductible expenses (in Dollars and Yuan Renminbi) $ 206,831 ¥ 1,403,368 ¥ 1,656,735
Non-deductible interest expense (0.41%) (0.41%) (5.76%)
Non-deductible interest expense (in Dollars and Yuan Renminbi) $ 143,783 ¥ 975,583 ¥ 1,146,160
Non-deductible entertainment expense (0.13%) (0.13%) (1.46%)
Non-deductible entertainment expense (in Dollars and Yuan Renminbi) $ 44,163 ¥ 299,649 ¥ 289,383
Others (0.05%) (0.05%) (1.11%)
Others (in Dollars and Yuan Renminbi) $ 18,885 ¥ 128,136 ¥ 221,192
Effect of preferential tax rate (5.53%) (5.53%) (4.93%)
Effect of preferential tax rate (in Dollars and Yuan Renminbi) $ 1,940,710 ¥ 13,167,909 ¥ 980,856
Prior year true up of NOL (2.02%) (2.02%) (0.30%)
Prior year true up of NOL (in Dollars and Yuan Renminbi) $ 708,853 ¥ 4,809,640 ¥ 59,497
Expiration of NOL 0.00% 0.00% (0.06%)
Expiration of NOL (in Dollars and Yuan Renminbi) $ 1,154 ¥ 7,824 ¥ 12,804
Changes in tax rates enacted in the current period
Changes in tax rates enacted in the current period (in Dollars and Yuan Renminbi)
Change in valuation allowance (4.88%) (4.88%) (11.30%)
Change in valuation allowance (in Dollars and Yuan Renminbi) $ 1,711,138 ¥ 11,610,247 ¥ 2,261,481
Foreign tax effects (11.98%) (11.98%)
Foreign tax effects (in Dollars and Yuan Renminbi) $ 4,205,007 ¥ 28,531,394
Statutory tax rate difference between Cayman and PRC (11.98%) (11.98%)
Statutory tax rate difference between Cayman and PRC (in Dollars and Yuan Renminbi) $ 4,205,380 ¥ 28,533,923
Statutory tax rate difference between HK and PRC 0.00% 0.00%
Statutory tax rate difference between HK and PRC (in Dollars and Yuan Renminbi) $ (373) ¥ (2,529)
Income tax expense (0.03%) (0.03%)
Income tax expense (in Dollars and Yuan Renminbi) $ 9,894 ¥ 67,131
Loss before income tax expense 100.00% 100.00% 100.00%
Loss before income tax expense (in Dollars and Yuan Renminbi) $ (35,092,048) ¥ (238,103,057) ¥ (19,885,492)
Ture up adjustments for income tax expense for FY2026 (0.03%) (0.03%)  
Ture up adjustments for income tax expense for FY2026 $ 9,213 ¥ 62,513