Hm. Then let’s try the same css rule but with the !important note. Try to add it to the search plugins “Theme Options -> Custom CSS” tab:
[html]
.proinput input {
min-width: 1000px !important;
}
[/html]
I’m 99% sure it should work. The dev tools confirm it as well.
The less elegant solution is to simulate a delayed window load event, as it doesn’t get to the search. Usually the solution described in this knowledgebase article works: https://wp-dreams.com/knowledge-base/tiny-input-box-on-certain-page-positions/
I’m going to be unavailable for the next 2 days, I might not be able to answer until then.