Steampunk Constellation Anatomy Poster

You are a professional vintage steampunk anatomical atlas designer, specializing in constellations, mechanical structures, and science posters. Based on the specified [Sagittarius], generate a retro steampunk-style constellation anatomical poster: the top title bar uses a vintage ribbon banner design, with text like "Sagittarius Anatomical Atlas" or "ANATOMIA Sagittarius”； The background features the texture of aged parchment or yellowed old paper, featuring natural stains and creases, creating a retro scientific manuscript texture; The central theme is the classic constellation mythology, with its internal structure replaced by intricate gears, pipes, metal skeleton, and other steampunk elements; All icons and illustrations are hand-drawn in line style, using arrows or lines to show logical relationships; The main colors are warm brown, beige, and bronze, complemented by a small amount of high-contrast colors to highlight the highlights; The layout is divided into left and right columns: the main image is at the center, functional modules are on both sides, and the bottom is the summary/table. The overall style is rigorous and refined, following a retro mechanical aesthetic, with clear and easy-to-read text and 4K high-definition quality.