Social networks stories design, vertical banner or flyer templates. Covers design templates for flyer, leaflet, brochure cover, presentation, advertising banner. Digital technology concept design 社交网络故事设计,垂直横幅或传单模板.涵盖传单、传单、小册子封面、演示文稿的设计模板。数字技术未来概念的未来背景