/* 二级有序列表项目符号样式 */
@counter-style parenthesized-digit-number {
    system: fixed;
    symbols: ⑴ ⑵ ⑶ ⑷ ⑸ ⑹ ⑺ ⑻ ⑼ ⑽ ⑾ ⑿ ⒀ ⒁ ⒂ ⒃ ⒄ ⒅;
    suffix: " ";
}

.md-typeset ol ol,
.md-typeset ul ol {
    list-style: parenthesized-digit-number;
}