第一人称太空行走爆炸漂流

First-person POV spacewalk outside a space station, astronaut's gloved hands visible, Earth slowly rotating below with a safety tether attached; at 3 seconds a sudden explosion rocks the station with a bright flash and flying debris, the tether snaps loose; from 6 seconds onward the camera spins uncontrollably into open space as Earth and stars blur past, ending drifting into darkness. Cinematic, ultra-realistic sci-fi, FPV camera with realistic inertia. Audio: muffled breathing → explosion thump → complete silence.