“HAPPY BIRTHDAY”是使用 FontVibe AI 创作的Bubble 3D 气泡字文字效果。鼓鼓的、充满空气的气泡字体，糖果光泽3D表面。Y2K风，气球弹跳感——生日动态、Discord头图、手机壁纸都好看。

Render as inflated 3D balloon letters for a birthday card. Festive bubblegum pink and golden yellow color palette. Background: soft white with confetti dots or streamers subtly scattered — not overwhelming. Bubble letters large and centered, glossy balloon finish with bright highlight. Party energy: joyful, celebratory, exactly what you would expect on a birthday greeting card. Clean and printable quality. Soft white background with scattered confetti dots and thin streamers — celebratory but not overwhelming. "HAPPY BIRTHDAY" in large inflated 3D balloon letters, centered, filling 68% of frame width. Each letter a different candy color: pink, yellow, blue, green, orange, purple — full rainbow birthday palette. Glossy balloon surface, bright highlight. Strong party energy. Exactly the headline you want on a birthday card — joyful, festive, personally warm.