Oracle ORDER by case when multi-conditional sorting

The ORACLE SQL sort is sorted according to two criteria, according to the ID number from small to large sort, while the Country field is the first row in Beijing, followed by Shanghai,. Dalian, and finally other cities, how to write?

The wording is as follows:
SELECT * FROM Provice
Order BY (case country= ' Beijing ' then 0
When country= ' Shanghai ' then 1
When country= ' Guangdong ' then 2
When country= ' Shenzhen ' then 3
When country= ' Hangzhou ' then 4
When country= ' Dalian ' then 5
else 6 end), id DESC

Oracle ORDER by case when multi-conditional sorting