/* 顶部导航主题切换按钮。 */
body .site-theme-header-toggle{width:30px;height:30px;margin-left:10px;padding:0;border:1px solid var(--contact-line);border-radius:50%;background:transparent;color:var(--contact-text);display:inline-flex;align-items:center;justify-content:center;font-size:14px;line-height:1;cursor:pointer;transition:border-color .2s,background .2s,transform .2s}body .site-theme-header-toggle:hover{border-color:var(--contact-accent);background:var(--contact-bg);transform:translateY(-1px)}
body .site-theme-header-toggle:focus,body .site-theme-header-toggle:active,body .site-theme-header-toggle:focus-visible{outline:none;box-shadow:none;border-color:var(--contact-line);background:transparent}
html:not(.site-light) body .navbar-light .navbar-toggler{border-color:var(--contact-line)}html:not(.site-light) body .navbar-light .navbar-toggler-icon{filter:invert(1);opacity:.92}
@media(max-width:991px){body .site-theme-header-toggle{width:auto;height:auto;align-self:flex-start;margin:0;padding:.5rem 1rem;border:0;border-radius:0;background:transparent;color:var(--home-muted,var(--contact-muted))!important;justify-content:flex-start;font-size:14px;font-weight:400;line-height:1.5;text-align:left}body .site-theme-header-toggle:hover,body .site-theme-header-toggle:focus,body .site-theme-header-toggle:active{background:transparent;color:var(--home-text,var(--contact-text))!important;transform:none;border:0}}