Subject: Semi-translucent frosted purple 3D cartoon treasure chest, chest is in an open state, transparent Bitcoin symbol coins and purple dollar symbol coins are placed inside the chest, white lock component is equipped above the chest. Scene: Empty minimalist dark solid color background, no other extra decorative elements. Style: C4D 3D rendering style, modern tech UI design style, rounded and soft object edges, with fine textures of glass and frosted plastic, delicate拟物化设计 (Note: The term "拟物化设计" is translated as "拟物设计" in common design contexts, and here it is properly translated as "拟物化设计" to retain the original design concept). Tone: Overall cool tone, mainly dark black and cool purple, with shiny metallic silver as an accent, high-level low saturation colors. Lighting: Soft cool light source from the top, with transparent rim light effect on the edges of the chest and coins, natural soft light shadow at the bottom of objects, clean and transparent lighting, strong atmosphere. Composition: Central composition, treasure chest is placed at the visual center of the lower part of the picture, sufficient blank space is left in the upper part of the picture, natural and comfortable object perspective, prominent visual subject. Use: Cryptocurrency financial technology commercial promotion visual material, high-end brand promotion image.