Python 根据条件将新值添加到下面的行或下面新创建的行中

考虑这个简化的DF:

import pandas as pd
data = { 'Name_Type': ["Primary", "Primary", "AKA", "Primary"],
         'Name': ["John", "Daniel", "Dan", "Bob"],
         'Surname': ["Green", "Brown", "Brown", "White"],
         'Country Type': ["Origin", "Origin", None, "Origin"],
         'Country': ["UK", "UK", None, "UK"],
         'Other': ["Info", None, None, "Info"]}
df = pd.DataFrame(data)

  Name_Type    Name Surname Country Type Country Other
0   Primary    John   Green       Origin      UK  Info
1   Primary  Daniel   Brown       Origin      UK  None
2       AKA     Dan   Brown         None    None  None
3   Primary     Bob   White       Origin      UK  Info

因此，我想在具有Origin而不是无的每一行下添加新值.如果已经生成的行下有"无"(如示例中的第2行)，我想将值"公民身份"添加到"国家类型"列中，并将值"英国"添加到该行的"国家"中.如果没有行，我想在当前行下创建一个新行并添加相同的值.所以最终的输出将是这样的:

  Name_Type    Name Surname Country Type Country Other
0   Primary    John   Green       Origin      UK  Info
1      None    None    None  Citizenship      UK  None
2   Primary  Daniel   Brown       Origin      UK  None
3       AKA  Daniel   Brown  Citizenship      UK  None
4   Primary     Bob   White       Origin      UK  Info
5      None    None    None  Citizenship      UK  None