Django static files are broken

Question

I'm trying to add a background picture to the hero section in Django, But whenever I open that URL: http://127.0.0.1:8000/static/img/bg.png it says 'img\bg.png' could not be found I also attempted to open other urls, but they are broken.

#settings

STATIC_URL = '/static/'
MEDIA_ROOT = os.path.join(BASE_DIR, 'media')
STATIC_ROOT = 'E:\coding\django\pawnhost\static'

#urls


from django.conf.urls.static import static
from django.conf import settings

urlpatterns = [
    path('admin/', admin.site.urls),
    path('', include("core.urls")),
] + static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)

#html


<section class="Hero">
    ...
</section>

#CSS (base.html)


{% load static %}

<style>

.Hero {
        background-image: url({% static 'img/bg.png' %});
}
</style>