Subject: Aerial view of the Earth's horizon, full-screen virtual news studio background. Scene: Minimalist-style news live broadcast virtual large screen scene. Style: 3D high-definition rendering, technological modern style, solemn and authoritative texture. Color tone: dominated by dark blue, with natural gradient transition of the Earth's horizon. Lighting: layered, transparent and soft, the Earth's light and shadow are three-dimensional and delicate, overall advanced and calm. Composition: The Earth's horizon is centered in the frame, full screen without superfluous clutter, neat and grand layout with no text. Usage: News studio background, conference large screen, virtual background for enterprise press conferences, visual base image for integrated media live broadcasts.