A vibrant cartoon with colours and smooth animation. title: Panda's Invisible Friend Create a cute, funny 15-second vertical YouTube Shorts animation (9:16) for kids. Use colorful, polished 3D cartoon animation, expressive characters, soft cinematic lighting, bright cheerful colors, playful music, and exaggerated funny reactions. 0-3 sec: A tiny fluffy panda walks through a magical green forest. He suddenly hears tiny footsteps behind him. He looks nervous and glances over his shoulder. 3-6 sec: Nothing is there! The panda shrugs and continues walking. 6-9 sec: Tap tap tap! Tiny footsteps follow again. The panda spins around dramatically-but nobody is there! 9-12 sec: The panda starts walking faster. The tiny footsteps get faster too. He suddenly stops and looks down. 12-15 sec: Reveal a tiny adorable yellow duck hiding behind him, copying every single movement! The panda looks shocked, then laughs. The duck happily waddles beside him. Add cute sound effects: tiny footsteps, suspense "whoosh," surprised gasp, and cheerful giggle. End with a playful musical sound and a happy freeze-frame