Main subject: A circular metal coin with iridescent halos on its edges suspends in the air, below it is a neatly stacked pile of coins of the same material, the top surface of the coin pile presents a liquid ripple texture, clearly reflecting the outline of the suspended coin above. Scene: A minimalist enclosed space with pure black color and no redundant elements, no extra decorations or clutter, fully highlighting the core subject. Style: Ultra-realistic 3D rendering style, with delicate and realistic metal texture depiction, futuristic tech feel, overall presenting high-end and exquisite visual effects. Color tone: Overall uses deep black as the base, metal parts are cool-toned silver-gray, coin edges are accented with gradient iridescent light, including dispersion colors of cobalt blue, warm orange, and light purple, with harmonious overall cold and warm contrast. Lighting: Uses soft directional side lighting to strengthen the metal's high reflection and transparent texture, forming obvious dispersion halos on the coin edges, overall high contrast between light and dark, dark background is clean and deep, bright subject is clear and prominent. Composition: Vertical centered composition, core subject is located in the lower-middle part of the frame, with a large area of black negative space reserved above the frame, using a close-up perspective to focus on displaying the details of the coin and the coin pile below. Purpose: Suitable as promotional materials related to digital finance, main visuals for technology posters, and image materials for high-end virtual asset-related content.