“SOFIA HAPPY BIRTHDAY LET THE FUN BEGIN”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 finished, wide 16:9 birthday backdrop graphic, not a photograph of a printed backdrop. Render the exact text “HAPPY BIRTHDAY”, “SOFIA”, and “LET THE FUN BEGIN” with correct spelling and no additional text. Hierarchy: “SOFIA” is the huge central headline, “HAPPY BIRTHDAY” is a small top line, and “LET THE FUN BEGIN” is a compact line beneath the name. Set every line in chunky, wide, custom 3D block lettering with thick uniform extrusion measuring about 55% of letter height, hard sharp face-to-side edges, ultra-glossy hard-candy lacquer faces, and darker same-hue extrusion planes. Color each adjacent letter a different vivid hue: cherry red, electric blue, sunshine yellow, lime green, hot orange, repeating only after a different hue intervenes. Give the faces natural upper-left specular highlights graduating into saturated color at the edges. Place the name across the central 60% of the canvas width, large enough to read across a party room; center the smaller copy above and below with generous clear spacing. Add a few small glossy 3D starbursts and balloon forms as restrained celebratory accents near the outer corners, clear of every letter. Use a plain, deep charcoal studio background with no gradient, haze or busy scenery. A strong directional key light from upper left produces crisp, long cast shadows at a consistent 45-degree angle, approximately half a letter-height deep; allow a restrained floor reflection beneath the lettering. High contrast, polished commercial 3D motion-graphics render, clean edges, readable from a distance.