/* 毛玻璃主面板效果 - 提高优先级 */
#board {
  -webkit-backdrop-filter: blur(15px) !important;
  backdrop-filter: blur(15px) !important;
}

#toc {
  padding: 10px !important;
  top: 4rem !important;
  background-color: var(--board-bg-color) !important;
  border-radius: 10px !important;
  -webkit-backdrop-filter: blur(15px) !important;
  backdrop-filter: blur(15px) !important;
}

/* 全屏背景 - 确保 web_bg 在最底层 */
#web_bg {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  width: 100% !important;
  height: 100% !important;
  z-index: -2 !important;
  background-size: cover !important;
  background-attachment: fixed !important;
  pointer-events: none !important;
}