“BLOCK”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 vibrant children's birthday party setup — colorful balloon arch in the background (red, blue, yellow, green balloons), confetti on a white tablecloth foreground, bright cheerful natural daylight from large windows at left. A large custom party banner hanging across the background reads "BLOCK" in massive colorful 3D candy-surface block letters — printed on white fabric banner, letters filling 65% of banner width, centered. B cherry red, L electric blue, O sunshine yellow, C lime green, K hot orange. Soft natural daylight illuminates the banner evenly. Glossy lacquer letter surfaces catch natural directional specular reflections. Banner fabric shows slight natural drape. The tablecloth below shows faint colorful ambient light bleed from the letters. Balloon arch in soft bokeh behind. Banner and letters are sharp focal point. 16:9 warm celebratory children's party scene.