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Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited)
 6 Months Ended
Jun. 30, 2023
CNY (¥)
¥ / shares
shares
Jun. 30, 2023
USD ($)
$ / shares
shares
Jun. 30, 2022
CNY (¥)
¥ / shares
shares
Income Statement [Abstract]      
Net revenues ¥ 52,268,716 $ 7,233,623 ¥ 380,138,767
Cost of revenues 115,167,091 15,938,317 203,767,419
Gross profit (loss) (62,898,375) (8,704,694) 176,371,348
Operating expenses:      
Selling and marketing expenses 9,501,537 1,314,946 10,165,237
General and administrative expenses 31,041,335 4,295,903 16,885,396
Research and development expenses 32,953,337 4,560,511 41,692,574
Total operating expenses 73,496,209 10,171,360 68,743,207
Profit (loss) from operations (136,394,584) (18,876,054) 107,628,141
Other expenses (income):      
Finance expense (income) 1,600,591 221,511 (636,158)
Interest income (335,986) (46,498) (1,860,642)
Other income (3,339,708) (462,192) (1,268,583)
Total other income (2,075,103) (287,179) (3,765,383)
Income (loss) before income tax provision (134,319,481) (18,588,875) 111,393,524
Income tax provision
Net income (loss) (134,319,481) (18,588,875) 111,393,524
Comprehensive income (loss):      
Net income (loss) (134,319,481) (18,588,875) 111,393,524
Other comprehensive income:      
Foreign currency translation adjustment 1,771,255 245,129 1,336,892
Total comprehensive income (loss) ¥ (132,548,226) $ (18,343,746) ¥ 112,730,416
Net income (loss) per ordinary share:      
Basic (in Dollars per share and Yuan Renminbi per share) | (per share) ¥ (1.2) $ (0.17) ¥ 1.07
Diluted (in Dollars per share and Yuan Renminbi per share) | (per share) ¥ (1.2) $ (0.17) ¥ 1.07
Weighted average number of shares used in per share calculation:      
Basic (in Shares) 111,496,668 111,496,668 103,790,000
Diluted (in Shares) 111,496,668 111,496,668 103,902,581