Convertible Notes Payable - Schedule of Convertible Notes Payable (Details) |
Jun. 30, 2026
USD ($)
|
Jun. 30, 2026
CNY (¥)
|
Dec. 31, 2025
CNY (¥)
|
|---|---|---|---|
| Convertible Notes Payable [Line Items] | |||
| Total convertible notes payable | $ 27,148,962 | ¥ 184,908,865 | ¥ 184,735,532 |
| Investors [Member] | |||
| Convertible Notes Payable [Line Items] | |||
| Total convertible notes payable | $ 27,148,962 | ¥ 184,908,865 | ¥ 184,735,532 |