A vibrant cartoon with colours and smooth animation. Create a short, cinematic 3D cartoon intro video for an educational lesson about smartphones, technology, and the brain. STYLE: High-quality 3D cartoon animation, modern animated-movie style, cute but professional, realistic 3D lighting, smooth camera movements, expressive facial expressions, cinematic transitions, and engaging sound effects. The video should feel exciting and entertaining, like the opening of an educational animated film. SCENE 1 - 6:00 AM: A stylish young girl is sleeping peacefully in a modern, cozy bedroom. Her smartphone is beside her, switched on. A digital clock clearly shows 6:00 AM. A soft alarm sound plays. The girl wakes up, opens her eyes, and immediately reaches for her smartphone. SCENE 2 - TIME PASSES: Show a fast cinematic montage. 7:00 AM - she is still using her phone. 7:30 AM - she is still using her phone. 8:00 AM - she is still using her phone. 8:30 AM - she is STILL using her phone. Show her repeatedly scrolling and looking at the screen. Make the clock and background change quickly to show time passing. Add a repeating sound effect with each time change. The girl does not notice how much time has passed. SCENE 3 - THE SUDDEN QUESTION: Suddenly, everything freezes. The music stops. The screen becomes darker for a moment. A dramatic sound effect plays. Then the camera quickly zooms toward the girl and her phone. A clean question appears on screen: "Is the problem the phone and technology?" Pause for a moment. Then another question appears: "Or is the problem that you don't switch it off?" SCENE 4 - THE ANSWER: The girl looks directly at the camera. She confidently says: "Switch it off!" She presses the phone's power button. The phone screen immediately turns black. Add a clear "click" sound effect. Then she says: "It's bad for your brain." SCENE 5 - TRANSITION INTO THE LESSON: After she says the sentence, the screen smoothly transitions from the bedroom into the beginning of the educational lesson. Use a cinematic transition, such as the camera zooming into the phone screen and then transitioning into the lesson. The final feeling should be: "Okay... but WHY is it bad for your brain?" This should create curiosity and make the audience want to listen to the lesson. IMPORTANT: Everything must be fully 3D. Do NOT use 2D animation, flat illustrations, sketches, or simple slideshow images. Keep the SAME girl, clothes, bedroom, phone, and visual style throughout the entire video. Make the video entertaining, suspenseful, and educational. The final transition should feel like the opening of a professional educational presentation.