Affiche Minimaliste Verte d'Exposition Professionnelle

A minimalist business exhibition poster for [any subject]. Background features a soft, gentle monochromatic gradient ranging from olive to grass green, complemented by subtle paper texture and soft ambient lighting. The lower half displays a fine line-drawn city skyline silhouette with soft shading, with prominent foreground architectural buildings on the left and right adding layered spatial depth. The upper half provides expansive negative space, centered with oversized bright white sans-serif bold numbers and core theme typography. Micro icons and auxiliary text lines are systematically arranged. Semi-transparent large-font watermark text runs vertically along the right edge as a visual anchor. Clean, orderly typography harmonizing with architectural lines for an elegant corporate invitation aesthetic.