/* Optimized for East Asian CJK */
html:lang(zh),
html:lang(zh-Hans),
.lang-zh,
.lang-zh-hans {
    font-family: var(--cjk-zh-hans-font-family);
}

html:lang(zh-Hant),
.lang-zh-hant {
    font-family: var(--cjk-zh-hant-font-family);
}

html:lang(ja),
.lang-ja {
    font-family: var(--cjk-jp-font-family);
}

html:lang(ko),
.lang-ko {
    font-family: var(--cjk-ko-font-family);
}

:lang(zh),
:lang(ja),
.lang-cjk {
    & ins,
    & u {
        border-bottom: var(--border-width) solid;
        text-decoration: none;
    }

    & del + del,
    & del + s,
    & ins + ins,
    & ins + u,
    & s + del,
    & s + s,
    & u + ins,
    & u + u {
        margin-left: .125em;
    }
}