/* 导航栏颜色 */
  #page-header.nav-fixed #nav {
    background: linear-gradient(#ffffff44);
    -webkit-backdrop-filter: blur(6px)!important;
    backdrop-filter: blur(6px)!important;
    opacity: 0.95;
    backdrop-filter: var(--backdrop-filter);
  }
  [data-theme="dark"] #page-header.nav-fixed #nav {
    background: linear-gradient(45deg,#00000038) !important;
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
  }