This does not have anything to do with Chinese characters, it is an issue with the category style “box” setting.

.badge {
&-category-bg, /* <------ bad!! */
&-wrapper.bullet &-category-parent-bg,
&-wrapper.bullet &-category-parent-bg + &-category-bg {
border-radius: 50%;
width: 9px;
}
To resolve this, apply this as a theme component
.badge {
&-wrapper.bar &-category-bg,
&-wrapper.bar &-category-parent-bg,
&-wrapper.bar &-category-parent-bg + &-category-bg {
border-radius: 0%;
}
&-wrapper.box &-category-bg,
&-wrapper.box &-category-parent-bg,
&-wrapper.box &-category-parent-bg + &-category-bg {
border-radius: 0%;
width: 100%;
}
}