Chinese Coastal Bridge Blueprint Poster — Vintage Line Art Prompt

Create a vintage blueprint-style poster of a Chinese coastal highway interchange with elegant line art, bilingual road signs, and minimalist typography. Use it as a Concept Art starting point for GPT Image 2: keep the visual structure and style constraints intact, then swap in your own subject, brand, or scene.

This prompt is organized as structured JSON with fields such as type, style, format, headline, subheadings, main scene, and road signage. Keeping that hierarchy helps the model separate the subject, layout, interface elements, and detail constraints.

Start with small changes to subject, scene, camera, and color, then generate a few variations to compare composition and detail without turning the page copy into keyword stuffing.