​

​

As of December 31, 

​

​

2024

​

2025

​

  ​ ​ ​

RMB

  ​ ​ ​

RMB

  ​ ​ ​

US$

Prepaid service fee

8,049

6,692

957

VAT and other surcharges

2,641

2,590

370

Deferred offering expenses

​

—

​

1,748

​

250

Office rental deposit

493

467

67

Other deposits

950

1,152

165

Contract assets

353

479

68

Prepaid media cost

736

972

139

Receivables from sales of shares on behalf of employees

67

15

2

Others

975

1,191

170

Total prepayments and other current assets

14,264

15,306

2,188