:root {
    --font-size-base: 0.875rem;
    --font-family-standard: 'Source Sans Pro', 'Hiragino Sans GB', 'Microsoft Yahei', simsun,
        helvetica, arial, sans-serif, monospace;
    --font-family-firacode: 'Fira Code', 'Source Sans Pro', 'Hiragino Sans GB', 'Microsoft Yahei',
        simsun, helvetica, arial, sans-serif, monospace;
}
