A long-haired cat, with flowing white fur and elegant three-color spots, looks up with bright blue eyes. Scene setting: The cat is resting on a minimalist dark cyan window ledge, surrounded by slender white and light blue floral branches that hang down. Style reference: Elegant retro-modern Japanese-style illustration, clean lines, flat but textured, similar to the 1980s City Pop poster art. Color scheme: Pure Klein blue background, creating a high contrast with the white fur, embellished with soft pastel colors. Composition perspective: Vertical screen composition, low-angle overhead shot, minimalist framework, advanced blank space treatment. Detail addition: Fine lines, smooth fur texture, delicate whiskers, overall atmosphere is dreamy and serene.