20 秒科幻恐怖短片提示词：实验室异形与一次变焦

Ultra-realistic cinematic science-fiction horror, 20 seconds, landscape 16:9. Practical-looking laboratory, cool daylight, restrained amber warning lights, exquisite shallow-depth cinematography. Suspense through staging and a single deliberate rack focus. One adult female xenobiologist wearing a dark laboratory uniform and transparent protective glasses. One tall nonhuman creature beyond a sealed observation window: pale segmented armour, elongated head, folded forelimbs, no gore. A laboratory workbench occupies the foreground. A small cracked specimen capsule sits thirty centimetres from the lens. The scientist stands midground. A reinforced observation window is five metres behind her. Start focused on the cracked capsule. The background creature is physically present but heavily defocused. Execute one clear focus pull from the capsule to the creature, without changing focal length, moving the camera or creating a new creature. 0–5s: Locked low close-up of the cracked capsule. A dro

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