A vibrant cartoon with colours and smooth animation. Create a 30-second vertical 9:16 animated kids video for a YouTube channel called FUN HUB. Use bright, colorful, high-quality 3D cartoon animation with cute friendly characters, smooth movements, cheerful expressions, colorful backgrounds, playful music and child-friendly sound effects. Scene 1 (0-5 sec): Two adorable cartoon children enter a magical colorful garden. A big rainbow appears. They wave at the camera and say: "Welcome to Fun Hub! Let's learn ABC!" Scene 2 (5-10 sec): A giant colorful letter A appears. A cute red apple bounces beside it. The children say: "A is for Apple!" Add a cheerful pop sound. Scene 3 (10-15 sec): A giant blue letter B appears. A colorful ball bounces around the children. They say: "B is for Ball!" Scene 4 (15-20 sec): A giant yellow letter C appears. A cute friendly orange cat jumps beside it. They say: "C is for Cat!" Scene 5 (20-26 sec): Show A, B and C together with the apple, ball and cat. The children dance happily while singing: "A, B, C - come learn with me!" Scene 6 (26-30 sec): The FUN HUB logo appears large and colorful. The children, cat and other cute animals wave at the camera. Show text: "Learn • Play • Grow • Together!" Then show a friendly SUBSCRIBE animation. Keep the characters consistent throughout the entire video. Use large readable letters and minimal text. No scary elements, no violence, no realistic humans. Make everything cheerful, safe and suitable for young children. Voice-over "Welcome to Fun Hub! Let's learn ABC! A is for Apple! B is for Ball! C is for Cat! A, B, C - come learn with me! Fun Hub - Learn, Play, Grow, Together!"