v3.26.3
Loans from Third Parties - Schedule of Loans from Third Parties (Details)
 6 Months Ended 12 Months Ended
Jun. 30, 2026
CNY (¥)
Dec. 31, 2025
CNY (¥)
Jun. 30, 2026
USD ($)
Jun. 30, 2026
CNY (¥)
Schedule of Loans from Third Parties [Line Items]        
Balance, Short-term loans from third parties     $ 241,218 ¥ 1,636,691
Ping Fang [Member]        
Long-term loans from third parties, noncurrent        
Balance, Long-term loans from third parties, noncurrent [1]   ¥ 2,000,582 294,849 2,000,582
Maturity Date, Long-term loans from third parties, noncurrent [1] December 31, 2027 December 31, 2027    
Effective Interest Rate, Long-term loans from third parties, noncurrent [1] 16,000 9.6%    
Collateral/ Guarantee, Long-term loans from third parties, noncurrent [1]    
Long-term loans from third parties, current        
Maturity Date, Long-term loans from third parties, current [1] 16,000 9.6%    
Xueyi Xie [Member]        
Long-term loans from third parties, noncurrent        
Effective Interest Rate, Long-term loans from third parties, noncurrent [2] December 31, 2026 December 31, 2026    
Long-term loans from third parties, current        
Balance, Long-term loans from third parties, current [2]   ¥ 200,000 22,107 150,000
Maturity Date, Long-term loans from third parties, current [2] December 31, 2026 December 31, 2026    
Effective Interest Rate, Long-term loans from third parties, current [2]    
Collateral/ Guarantee, Long-term loans from third parties, current [2]    
Zhenyang Shi and Li Xu [Member]        
Schedule of Loans from Third Parties [Line Items]        
Balance, Short-term loans from third parties [3]   ¥ 610,637    
Maturity Date, Short-term loans from third parties [3]   Due on demand    
Effective Interest Rate, Short-term loans from third parties [3]      
Collateral/ Guarantee, Short-term loans from third parties [3]      
Zhenyang Shi [Member]        
Schedule of Loans from Third Parties [Line Items]        
Balance, Short-term loans from third parties [3]     93,837 636,691
Maturity Date, Short-term loans from third parties [3] Due on demand      
Effective Interest Rate, Short-term loans from third parties [3]      
Collateral/ Guarantee, Short-term loans from third parties [3]      
Third Party [Member]        
Schedule of Loans from Third Parties [Line Items]        
Balance, Short-term loans from third parties     $ 147,381 ¥ 1,000,000
Maturity Date, Short-term loans from third parties 31 December 2026      
Effective Interest Rate, Short-term loans from third parties 18.00%      
Collateral/ Guarantee, Short-term loans from third parties Zhenyang Shi      
[1] The loan was renewed in 2025 with maturity date of December 31, 2027.
[2] The loan was renewed in 2025 with maturity date of December 31, 2026.
[3] The Group entered into various loans agreements with individuals to facilitate its business operations. For six months ended June 30, 2025 and 2026, newly obtain loan from third parties was RMB1,600,000 and RMB1,259,955(US$185,694), respectively. As of December 31, 2025 and June 30, 2026, the Group did not fully repay the loans which were due on demand, and these entity and individuals may request the Group to repay the loan at any time.