3d path narrative visual poster design

Design a 3:4 vertical "Path Narrative 3D Scene" visual poster for [Subject / Product / Workflow], 3D Journey Mapping. The overall background uses a gradient from deep navy blue to pure black. The center of the image is a three-dimensional path entering from the bottom left and spiraling upwards into the distance, forming a clear S-shaped visual movement. The path has real spatial thickness, soft chamfers, and precise engineering structures. Four key nodes are sequentially set along the path: [Start], [Transformation], [Processing], and [Outcome]. Each node uses miniature buildings, equipment, figures, or abstract installations to represent the corresponding stage. The core product or final outcome is located at the end of the path, has the largest size, and is illuminated by a cold white spotlight, becoming the focus of the entire image. The overall style uses isometric perspective and a miniature sandbox texture, with materials combining matte metal, frosted glass, and low-reflection plastic. The main color palette consists of deep blue, graphite black, and cold white, with only a small amount of electric cyan used to mark the path direction. The title uses a bold sans-serif font, occupying about 20% of the upper area of the image. Node information uses small numbers, coordinates, arrows, and extremely short labels. The overall effect is like a combination of a future transportation system, a tech brand official website, and cinematic 3D information visuals. Avoid ordinary flowcharts, flat arrows, dense text, cartoon toy feels, neon cities, and meaningless mechanical parts.