Create a 15-second cinematic wildlife documentary video based on the reference image. The colorful toucan must remain **100% identical** throughout the entire video (same shape, colors, feather details, proportions, lighting response). No mutation, no style drift, no extra limbs, no color shift. Style: BBC Earth / National Geographic documentary, ultra-realistic, 4K, natural lighting, shallow depth of field, soft rainforest atmosphere, light rain particles. 0–3s（广角 establishing shot） Wide-angle shot of a lush rainforest. The toucan is perched on a mossy branch, centered slightly off-frame (rule of thirds). Background foliage softly blurred. Light rain falling. Slow cinematic camera push-in. Ambient jungle motion (leaves subtly swaying). 3–6s（中景 tracking） Smooth lateral camera movement from left to right, keeping the bird perfectly in focus. The toucan slightly turns its head naturally. Maintain exact identity consistency. Raindrops visible, subtle depth shift. 6–9s（特写 close-up） Cut to macro close-up of the toucan’s head and beak. Ultra-detailed feather texture, eye reflection, moisture on beak. Background fully blurred (bokeh). Very shallow depth of field. No distortion. 9–12s（动态广角） Cut back to a wider cinematic shot. The bird gently adjusts posture or flutters feathers slightly (natural micro-movement only). Branch and surrounding plants move subtly with wind. Camera slowly pulls back. 12–15s（英雄镜头 hero shot） Final stable shot. Medium-close framing. The toucan looks alert and majestic. Light rays softly pass through foliage. Rain slows down slightly. Clean, premium documentary ending frame. Negative constraints: no morphing, no animation artifacts, no extra birds, no flickering, no color inconsistency, no deformation, no camera shake, no unrealistic motion, no change in bird identity. Focus: subject consistency + cinematic lens switching（wide ↔ close-up）+ natural realism 🌿