“SPARK”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。

Massive chunky 3D block letters with heavyweight extruded presence — thick uniform extrusion depth of 50-60% of letter height. Front face finished in ultra-glossy lacquer, catching directional key light with natural specular reflections that graduate from bright highlight to deep saturated color — the surface quality of hard candy coating or high-gloss toy paint. Side extrusion planes in a noticeably darker shade of the same hue, creating crisp face-to-depth contrast that reads immediately as three-dimensional volume. Adjacent letters each carry a different vivid saturated color, maximizing chromatic contrast across the word — no two adjacent letters share the same hue family. Hard sharp corner edges where face meets extrusion, no beveling. Long dramatic cast shadows at consistent 45-degree angle, shadow depth approximately 40-50% of letter height. Strong directional key light from upper left. Bold, high-contrast, maximum visual impact. A smartphone displaying an Instagram post — phone held at a natural viewing angle, soft warm ambient room lighting. The Instagram post on screen features "SPARK" as the brand visual in massive bold 3D text — cherry red and electric blue alternating letters, ultra-glossy candy surface, intense specular highlights — as the central image of a brand post, filling 65% of the post image width over a dark gradient background. Instagram UI (profile name, likes, comments) visible around the post. Phone and screen are sharp focal point. Social media content creation scene — 16:9.