v3.25.1
Short-term Investments (Tables)
12 Months Ended
Dec. 31, 2024
Short-term Investments  
Schedule of Short-term Investments

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As of December 31, 

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2023

    

2024

    

2024

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RMB

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RMB

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US$

Time deposits and held-to-maturity debt securities

    

139,740,216

    

210,368,027

    

28,820,302

Equity securities

 

17,151,086

 

44,479,404

 

6,093,653

Available-for-sale debt securities

 

—

 

6,319,014

 

865,701

Other debt investments

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524,063

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12,625,411

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1,729,674

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157,415,365

 

273,791,856

 

37,509,330

Schedule of summary of details of available-for-sale debt securities

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As of December 31, 2024

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Fair Value

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Fair Value

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Gross

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Gross

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(Net

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(Net

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Amortized

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Unrealized

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Unrealized

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Carrying

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Carrying

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Cost

    

Gains

    

Losses

    

Amount)

    

Amount)

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RMB

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RMB

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RMB

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RMB

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US$

Due in 1 year

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6,289,405

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29,613

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(4)

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6,319,014

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865,701