老市场连续追逐镜头：8 秒角色动作分段

The camera tracks behind a young protagonist sprinting through a crowded old market street at dusk. 0-2s: begin with handheld urgency, close behind the character. 2-5s: shift to side tracking as the character dodges pedestrians and knocks over a fruit stand. 5-8s: push forward as the character glances back in panic, breath visible, fabric moving in the wind, and distant shouts closing in. Rich crowd ambience, footsteps, wooden carts, and city echoes. No scene cuts, one continuous shot.