Celestial Cloud Launch Poster

Goal: Create an elegant mystical astronomy poster announcing [headline text] with a celestial map motif and premium gold-on-navy styling.

Canvas: Vertical poster, 2:3 aspect ratio, deep midnight navy background with subtle paper grain, faint stars, and a thin double-line antique gold border with rounded corners. Add small compass-star medallions in all 4 corners.

Main illustration: Center the composition around one bright glowing orange-gold starburst slightly above the middle. From this center, draw exactly 3 luminous gold rays to 3 labeled satellite stars: upper left labeled [left cloud label], upper right labeled [right cloud label], and bottom center labeled [bottom cloud label]. Each satellite point is a smaller radiant star, with the bottom star connected by a vertical ray. Place a small decorative gold rosette/sun symbol on the lower vertical ray between the center and bottom star.

Celestial chart details: Behind the rays, include faint concentric astrolabe rings, radial guide lines, dotted orbital arcs, subtle constellation line drawings, scattered tiny stars, and translucent blue-green nebula wisps curving around the center. The look should feel like an antique star atlas mixed with modern cinematic glow.

Text content: In the lower third, set a large refined serif title in metallic gold: [headline text]. Below it, centered in smaller gold serif type, write [subtitle text]. Under the subtitle, add a short thin ornamental divider line with a tiny diamond/star at its center.

Visual style: Sophisticated, high-end, poetic, celestial, dark academia, occult astronomical chart, luminous gold typography, subtle volumetric glow, balanced symmetry, crisp fine-line ornamentation.

Constraints: Use exactly 3 connected cloud labels and exactly 4 corner medallions. Keep the background dark and uncluttered, preserve the Chinese headline text exactly, avoid logos, people, watermarks, UI elements, or extra captions.