A Staircase Inside a Lemon

Generate exactly one finished image, never a collage, grid, or multiple variants. A whole lemon with one neat rectangular opening reveals a miniature white spiral staircase descending into its center. Lemon is otherwise intact, saturated yellow rind against soft sky blue, optical macro photography and convincing little internal shadows. Minimal, whimsical architectural still life. Square, no text. Original visual concept, carefully resolved composition and materials. No watermark. Text-to-image only; do not use previous conversation images as visual inputs.