Subject: 3D cartoon rounded rectangular red red envelope, smooth surface, central gold belt embedded with large gold coin, two corners with floating bouncing gold coins. Scene: pure white simple blank background. Style: C4D 3D rendering, cute cartoon style, light luxury and exquisite, modern tech festive style. Color palette: mainly orange to deep red gradient red, gilded bright colors as accents, festive and bright color scheme. Lighting: global soft bright light, fine diffuse reflection, transparent texture with no hard shadows. Composition: centered subject composition, scattered coins highlighting dynamism, simple and grand平视 perspective. Usage: e-commerce promotion poster, festival red envelope material, welfare event visuals, finance welfare icon.