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@media only screen and (max-width:767px){.hidden-xs-only{display:none!important}}@media only screen and (min-width:768px){.hidden-sm-and-up{display:none!important}}@media only screen and (min-width:768px) and (max-width:991px){.hidden-sm-only{display:none!important}}@media only screen and (max-width:991px){.hidden-sm-and-down{display:none!important}}@media only screen and (min-width:992px){.hidden-md-and-up{display:none!important}}@media only screen and (min-width:992px) and (max-width:1199px){.hidden-md-only{display:none!important}}@media only screen and (max-width:1199px){.hidden-md-and-down{display:none!important}}@media only screen and (min-width:1200px){.hidden-lg-and-up{display:none!important}}@media only screen and (min-width:1200px) and (max-width:1919px){.hidden-lg-only{display:none!important}}@media only screen and (max-width:1919px){.hidden-lg-and-down{display:none!important}}@media only screen and (min-width:1920px){.hidden-xl-only{display:none!important}}
/* 主题变量：原 theme.css 并入。去掉了浏览器不支持的 (prefers-color-scheme:no-preference)，
   并把 [date-theme] 显式声明移到媒体查询之后，否则手选 light 会被系统的 dark 覆盖 */
:root{--bg-color:#fff;--text-color:#333}
@media (prefers-color-scheme:dark){:root{--bg-color:#333;--text-color:#fff}}
:root[date-theme="light"]{--bg-color:#fff;--text-color:#333}
:root[date-theme="dark"]{--bg-color:#333;--text-color:#fff}