Write a 60-second Chinese creator voiceover and three-shot storyboard for a general bodyweight-squat explainer. Use only the supplied facts. Return timestamps, shot description, voiceover, and on-screen text.

Required cues: feet slightly wider than hip-width; toes slightly outward; brace trunk; move hips back and down while hips and knees bend; feet stay planted; knees align over the second toe; do not force depth if heels begin to lift or the torso rounds; rise by extending hips and knees while hips and torso rise together; inhale on descent and exhale on ascent.

Do not prescribe sets, repetitions, load, a universal squat depth, calorie burn, weight loss, injury prevention, pain treatment, or medical advice. Do not say knees must never pass toes. Add a short note that this is a general demonstration, not individualized coaching, and that viewers with injury, symptoms, pregnancy/postpartum or health concerns should seek qualified advice and stop if pain or unwell.
