Your regex .*/([ä¸æ–‡ç½‘页我们的团队å™é¹â€“¦]+)
expects one of the special characters after the slash and your test file doesn't start with one of these characters.
You might try something more like .*[ä¸æ–‡ç½‘页我们的团队å™é¹â€“¦]+.*
instead.