করণী — √-এর রহস্য!

Create a high-energy, kid-friendly 3D educational animation for the opening of a mathematics video about “Surds (করণী)”. Duration: 7 seconds. Style: colorful, polished 3D cartoon animation, modern educational YouTube/short-video style, energetic camera movement, playful but clear, suitable for school children. Scene 1 — 0–2 seconds: Start with a dark but colorful mathematical environment. A large glowing 3D number “25” suddenly appears in the center with a fast camera zoom-in. Add floating mathematical symbols and tiny glowing particles around it. Scene 2 — 2–4 seconds: The 3D “25” smoothly transforms into “√25”. The square-root symbol becomes large, shiny and three-dimensional, moving slightly toward the camera. Make the transformation visually exciting and satisfying. Scene 3 — 4–5.5 seconds: The 3D √ symbol spins gently and flies forward through the scene, then lands in the hand of a cute school-aged cartoon student character. The character looks curious and surprised. Use expressive facial animation. Scene 4 — 5.5–7 seconds: The child looks at the √ symbol with curiosity and says naturally in Bengali: “আচ্ছা… এই √ চিহ্নটা আসলে কী?” End with a quick energetic reveal of the title: “করণী — √-এর রহস্য!” Use smooth 3D animation, dynamic camera movement, realistic depth, soft cinematic lighting, expressive character animation, clean mathematical typography, and natural sound effects. Keep the mathematics visually accurate. Do not make it robotic or overly futuristic.