Sora提示词：0-1s: Hand easily lifts the racket (show the lightweight han

0-1s Hand easily lifts the racket (show the lightweight handle)
2-5s A boy slips the racket into his backpack’s side pocket, then runs to the park
6-9s The boy swings to chase the ball on the lawn, hair blowing in the wind
Sound: 轻快脚步声 + 风铃声
Text overlay: "Lighter—play wilder!"