简约风学术科技项目珠宝电商场景插画素材

A4 vertical poster, Challenge Cup academic project plan cover, formal academic style Visual elements: minimalist Arabic geometric patterns, desert gold light luxury jewelry silhouettes, simple globe (cross-border e-commerce), social drainage connection lines, Middle Eastern desert light and shadow Color scheme: navy blue, sand gold, milky white, light cyan Text layout (standard competition format): Top: Challenge Cup National College Students' Extracurricular Academic and Technological Works Competition Main title: Analysis on New Social Drainage Mode of Jewelry Sales in Middle East Cross-border E-commerce Subtitle: Academic and Technological Works Project Plan Bottom: Participating University | Team Name | Instructor | Completion Date High-end, concise, rigorous, no clutter, suitable for college student competition cover