“Happy Birthday”是使用 FontVibe AI 创作的Y2K 泡泡字文字效果。Y2K 泡泡充气字母——圆润柔软的充气造型，粉紫马卡龙配色，糖果光泽表面。甜甜的 2000 年代派对女孩风。

Y2K bubbly inflated letters — extremely round pillow-soft letter forms completely inflated like over-pressurized balloons. Pastel pink-to-lavender gradient across the glossy candy surface. Strong white specular highlight on the top of each inflated letter. Extremely smooth and soft surface. Sweet 2000s Y2K party aesthetic. Maximum bubbly inflation quality. LETTERFORM PRIORITY: when the chosen font carries its own treatment, that font's letterform shapes take priority and own the letters; this style governs the over-inflated pillow form, the glossy candy surface and the speculars. FALLBACK MATERIAL: if the font carries no material of its own, render the letters as extremely round over-inflated pillow letters with an ultra-smooth glossy candy surface and a strong white top specular. COLOR PRIORITY: keep the font's own colors if specified; otherwise a pastel pink-to-lavender gradient. Portrait 3:4. “Happy Birthday” arranged in two exuberant centered lines, with Happy floating slightly above Birthday in a joyful stacked hierarchy. Every letter is inflated to extreme pillow-soft roundness, swollen like glossy candy balloons ready to pop, with an ultra-smooth pastel pink-to-lavender surface and hints of candy blue along the curved lower edges. Strong creamy-white specular highlights bloom across the upper curves of every letter, while soft rosy inner glow and plump contact shadows make the words feel buoyant and tactile. Set against a dreamy pastel sky gradient, from baby pink at the top through lilac to powder blue near the bottom. A loose arch of tiny metallic balloon hearts, pearly stars, translucent bubbles, mini wrapped gifts, and floating birthday confetti frames the text without crowding it. Add a few curled iridescent ribbons sweeping behind the lettering and a small cluster of glossy pastel balloons at the lower corners. Soft overhead party lighting, rounded reflections, sweet Y2K birthday-card energy, polished toy-plastic glamour, maximum bubbly inflation.