Pseudo element (::before) is hover out animation keep going

Question

I nee help on something very specific (i guess)

I have "li" block with ::before pseudo element <li id="phone">XX XX XX XX XX</li>

li::before
  display: block                        
  content: ""
  width: 17px
  height: 17px
  margin-right: 8px
  position: relative
  align-items: center
  background: blue

So i animate the pseudo block when the "li" is hover like so :

li:hover::before
  animation-name: hover-wriggle
  animation-duration: 2s
  animation-fill-mode: forwards
  animation-direction: alternate-reverse
  animation-iteration-count: infinite
  animation-timing-function: ease-in-out

@keyframes hover-wriggle
  0%
    transform: rotate(50deg)
  50%
    transform: rotate(-50deg)
  100%
    transform: rotate(0deg)

When i hover the "li" he move, when i quit i want them to keep doing animation for like 1sec ? This is possible (without JS !) ?

Thanks ! Happy Coding <3