应用: 菜鸟
任务: 打开菜鸟，进入首页，查看第四个运输中快递的预计到达时间
操作步骤:
step_id: 0
action: CLICK
step_id: 1
action: CLICK
step_id: 2
action: CLICK
step_id: 3
action: STOP