Royalblaue Laptop-Hülle Mockup mit eigene kugelschreiber

Photo-real product mockup of a royal blue laptop sleeve with "eigene kugelschreiber" logo printed at sleeve. Mockup style: cozy home, luxury black + gold logo palette. Studio-grade photography, sharp focus, natural fabric texture / mug ceramic / paper grain. Magazine-quality merch shot, no watermarks. Logo is generic placeholder typography — no real-brand marks. Realistic product proportions. Target search intent (rendered visually, no on-image text): "eigene kugelschreiber" (de).