如何添加簡單的暗黑模式

@media (prefers-color-scheme: dark) {
 body {
    filter: invert(100%);
    background-color: rgb(29, 32, 31) !important;
 }
 img,
 .astro-code,
 .emoji,
 iframe /* for recaptcha */ {
    filter: invert(100%) !important;
 }
}