Despite the name of the party, no political scientist considers China a communist country today.
Which is why I said it's not the USSR!
Actually 1912 to 1948 was the Mandarins.
about 200BC to 1912 only tinkering with it. Is today's China hugely different politics to pre 1912?
I think if you tinker and adapt you'll find at least one Chinese period between 200BC and 1912 a starting point for a more viable Extra-Solar political system. Churchill famously said that Democracy was terrible, it was just the other systems are worse. The USA has a totally broken system mostly designed for a pre Civil war looser Federation. It was slightly reformed. IMO the Civil war wasn't about Slavery but between looser than Swiss Federation vs a single Nation State federal only in Name. The USA didn't have a Federal dollar till I think 1913 (USA dollar created 1792, but printed dollar could be different value in different towns).
The Swiss have the only real "federal government".
Western democracy isn't a single system. Ireland, UK and USA are very different. Israel, love or hate it, is the only real working Democracy in the Middle east but has a totally archaic system of Proportional Representation. Theirs is based on a pre Czarist era Polish concept brought by East Europeans and Russians in the 19th Century when Turkey (Ottoman Empire) still ruled most of the Middle East (earlier all of it).
It's worth studying political systems and history before you make your own. Some systems worked for a very long while. Fairness, freedom, efficiency, wealth, peace, stability, social mobility, level of crime, corruption are all separate attributes. If you need some combination of those for the plot then some now extinct system may be more readily adapted than what you suppose the 20th Century or today has.
Pre 15th C. Irish Brehon laws interesting. No automatic inheritance. Women more rights than any other contemporary system (Look up too when Swiss Women got the Vote or when Switzerland joined UN!).
Contrast Western European Feudalism (technically ended with Sark in 2004!) with China 200 BC to 1912 (various different periods), Japan and India before the 17th Century. Compare religious freedoms and local National freedoms between different periods of Roman Empire before Nero and Muslim World 1100 to 1914, esp. Ottoman. Or British Empire colonial rule India vs West Indies vs Australia (Ireland wasn't ever part of Empire or a really a colony except maybe during Cromwell. Cromwell still is unpopular in most of Ireland, some people probably blame him even for the Irish Famine, which actually was a Europe wide phenomenon and not as bad as some earlier European Famines. Nor was the Absentee landlord maybe as bad overall as athe Highland Clearances. I'll be getting visits now from men in balaclavas and white vans after a few black & Dekker catalogues are put through letterbox).
What used to take weeks (Months?) in the reference section of a major city library (no taking home the books and the town library was useless) is now a few hours on Internet / Wikipedia so no excuse to skimp on research before inventing your SF&F politics and economics!