Ultra-realistic cinematic video, warm and emotional tone: A cat with moist, glistening eyes stands up slowly and walks two steps forward. It lifts one delicate front paw and gently waves it twice, a clear gesture of saying goodbye. Then it turns around reluctantly, stepping onto a vibrant rainbow staircase that ascends into soft golden clouds. After walking two steps up the staircase, it pauses, turns its whole body back to face the camera, eyes filled with longing and reluctance. Soft golden sunlight wraps around the scene, warm dreamy color palette, no text overlay.