Geometric Purist Typeface Showcase AI Image Prompt

Paul Renner classic geometric prototypical typeface design, Bauhaus geometric purism, circles triangles rectangles as stroke bases, balance of geometric rationality and readability, rigorous type skeleton, geometric prototype construction, perfect circle cutting strokes, rectangular module combination, optically adjusted kerning, sans-serif geometric skeleton, proportionally precise typeface, rationally symmetrical letter structure, mechanical aesthetic typeface, geometric purity feel. Minimalist composition with plenty of negative space and centered layout, pure black background, white geometric sans-serif typeface, place the two-character ancient place name '长安' (Chang'an) centered in the frame, geometric prototype construction of the typeface, perfect circle cutting stroke outlines, precise symmetrical proportions, even stroke thickness, clean and simple strokes, some strokes connected, combining geometric rationality with oriental charm. Below the characters '长' and '安', horizontally center-align small white geometric sans-serif English 'CHANG AN', font size much smaller than the main title so as not to compete. Overall pure black background + white font high contrast, minimalist composition with plenty of negative space, perfectly presenting geometric purism, suitable for brand identity design scenario.