Misconfigured font family order leads to incorrect display

Screenshot here:

Obviously, those simplified variant of Chinese characters is incorrectly displayed as Japanese variant.
This is caused by following code in flash.scss, etc.

.markdown-body {
    font-family: -apple-system,BlinkMacSystemFont,"Segoe UI Variable Text","Segoe UI","Meiryo",system-ui,ui-sans-serif,Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";
    font-size: 16px;
    line-height: 1.5;
    word-wrap: break-word;

As you can see, "Meiryo", a font which designed for Japanese variant, is placed before system-ui which is a more suitable font for my language. This issue is happened today(2021-09-12T16:00:00Z)

We can simply fix this by move "Meiryo" behind of “system” series. And add code to handle different locale later.

Another instance here:

Chinese characters in filename and project description are also affected by this issue. Just let the browser handle CJK fonts fallback as before instead of specifying one.