Do you have all of those files included in your collection.media folder? Anki will only recognize and include (in an export) the ones that start with an underscore. Field Replacements - Anki Manual
I might be missing something obvious and/or noticing something irrelevant – but it looks like you’ve got at least 4 font files named there. Are all 4 of them in collection.media? Do all 4 of them have leading underscores (because they don’t in your CSS)?