Literature Reference: 长国者，长久之国也。——《礼记·礼运》 A long-lasting state, as described in 'The Book of Rites: Li Yun'.
长: Strengths, merits.
国: Nation, capital. In names, it often conveys the meaning of lofty aspirations and extraordinary ambitions.
Meaning: A prosperous and enduring nation, symbolizing stability and flourishing.