AI Video Prompt: AI Dragon Office Scene

Create an 8-second vertical 9:16 hyper-realistic cinematic fantasy video. Show one detailed white-silver dragon creature sitting upright at a modern wooden home office desk. The dragon has realistic overlapping scales, curved horns, expressive eyes, a long neck, clawed hands and a long tail. The environment contains an open laptop, coffee mug, notebook, pen, cables and a softly blurred computer monitor in the background. Use natural daylight coming through a window, realistic shadows and shallow depth of field. At the beginning, the dragon is already seated and focused on the laptop. The dragon slowly reaches toward the coffee mug with one clawed hand, lifts it naturally and drinks. After placing the mug back down, the dragon returns attention to the laptop and interacts with the keyboard using its claws. The dragon suddenly reacts to something on the screen by opening its mouth widely with a surprised/frustrated expression, then closes its mouth and crosses its arms while looking forward confidently. Keep the dragon realistic, physically connected to the environment and consistent throughout. No magical effects, no extra characters, no redesign, no text, no watermark.