3D渲染卡通感现代简约风彩色立方体字母F艺术字

：Logo design, letter F made of colorful marshmallows, red background, simple and minimalistic style, bright colors, clear details, strong contrast between light and dark, prominent outline for coloring, and solid color backgrounds. The letters 'F' is composed with the texture of fluffy cartoon-style marshmallow in different shades of blue, orange, purple, pink, yellow and green, arranged to form an "f" shape, giving it three-dimensional effect. It's very cute and playful, suitable as logo design