“Marcus”是使用 FontVibe AI 创作的3D 立体粗体文字效果。厚重的方块大写字母带深度挤出，每个字母一种亮面糖果色，顶光让高光滚过圆润边角，彩色倒影落在地面上。

Create a polished horizontal 3:2 product render of a physical desk name sign. The only visible text is the exact name “Marcus”. Make the name the clear focal point: thick, chunky 3D display letters, title case, broad sturdy strokes and open counters, with uniform extrusion depth about 55% of letter height. Give each adjacent letter a different vivid saturated color: M cherry red, a electric blue, r sunshine yellow, c lime green, u hot orange, s violet. Front faces are hard-candy glossy lacquer with natural specular highlights graduating into saturated edges; extrusion sides are a darker shade of each letter’s own color. Keep face-to-side edges sharp, with no bevel. Set the freestanding letters firmly onto a low, simple matte charcoal nameplate base so this reads as a desk sign, not a floating word. Place the sign centered, viewed nearly straight on from slightly below tabletop height, filling about 80% of the canvas width. Use a plain deep-charcoal studio background and matching dark floor, with no gradient, haze, extra props, badges, or other text. A strong directional key light from upper left creates lacquer reflections and long, crisp cast shadows extending consistently down-right at 45 degrees, with shadow length about 45% of letter height. Preserve clear separation between every letter and its extrusion; the name must be readable at a glance. High-quality commercial 3D product render, realistic materials, sharp focus.