/* 同一透明品牌原稿用于明暗模式；兼容仍在生产运行的旧 D 标容器。 */
@layer debater-visual-system {
  html body nav.debater-global-nav .global-brand-link > :first-child {
    position: relative;
    display: block !important;
    flex: 0 0 32px;
    width: 32px !important;
    height: 32px !important;
    padding: 0 !important;
    border: 0 !important;
    border-radius: 0 !important;
    background: none !important;
    box-shadow: none !important;
    color: transparent !important;
    font-size: 0 !important;
    line-height: 0 !important;
  }

  html body nav.debater-global-nav .global-brand-link > :first-child::before {
    content: '';
    position: absolute;
    inset: 0;
    background-color: #ffffff;
    -webkit-mask: url('/assets/brand/debater-mark-20261101.png') center / contain no-repeat;
    mask: url('/assets/brand/debater-mark-20261101.png') center / contain no-repeat;
  }

  html.light-mode body nav.debater-global-nav .global-brand-link > :first-child::before {
    background-color: #101113;
  }
}