Minimalist Business Exhibition Poster

Generate a minimalist business exhibition poster around {argument name="subject object" default="any subject object"}. The image uses a soft, monochromatic background in olive green to grass green, complemented by subtle paper textures and gentle ambient lighting. The lower half uses fine line drawing combined with light shadows to present a cityscape skyline silhouette, with foreground buildings on the left and right sides highlighted and elevated, while the middle is framed by gradually receding mid-to-long-distance outlines, creating a highly layered and spatially deep landmark background. The upper half leaves a large area of ​​negative space for a sense of breathing room, with oversized, bright white sans-serif bold numbers and key booth numbers/core theme logos placed in the center, and small icons (such as clocks and pointers) and auxiliary small-font English and Chinese information lines arranged vertically along the right edge, forming a visual anchor on the right side. The overall font is clear and well-organized, with a highly ordered hierarchical structure. The line drawing of the building blends perfectly with the soft monochrome tone, presenting a modern, high-quality, elegant, and sophisticated visual style for the exhibition invitation.