a vertical flat vector illustration in a chinese political red theme, minimalist and beautiful. the image combines three iconic landmarks from xi'an jiaotong university. foreground: the grand "jiaotong university" gate. midground: the "饮水思源" gear-shaped monument with abstract falling autumn leaves. background: the majestic qian xuesen library building under radiating golden sunbeams and stylized clouds. the color palette is crimson red, gold, and off-white. symmetrical composition, clean lines, graphic design style, flat colors, political poster aesthetic, 8k, vector art.