If you only have this bank account, you can't do it now. You can do more running water in these ten days and access it twice a day. When you apply, there is enough money in your account to pay the down payment. You'd better ask the bank to call for you for another year.
This won't be a big problem,
You should find a guarantee company. You can consult them. It won't be a big problem. The first home loan approval is very loose. Don't worry too much. If you have proof of income, just don't be a bad company. Write a higher monthly income and position. It depends on how much money you have borrowed for several years.
500,000 yuan for 20 years, with a monthly income of more than 9,000 yuan (at this rate).