/* 加速模式基礎樣式 */
body.accelerated-mode {
  --animation-duration: 0.01s !important;
}

/* 通用優化規則 */
body.accelerated-mode * {
  box-shadow: none !important;
  text-shadow: none !important;
  filter: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

/* 視頻播放優化 */
body.accelerated-mode video,
body.accelerated-mode video * {
  transition: none !important;
  animation: none !important;
  transform: none !important;
  will-change: auto !important;
  filter: none !important;
  backdrop-filter: none !important;
}

/* 圖片優化 */
body.accelerated-mode img {
  transition: none !important;
  animation: none !important;
  filter: none !important;
}

/* 基本元素樣式 */
body.accelerated-mode .background,
body.accelerated-mode .overlay,
body.accelerated-mode .card {
  background: var(--bg) !important;
  box-shadow: none !important;
  border: none !important;
}

/* 覆蓋內聯樣式 */
body.accelerated-mode [style*="filter"],
body.accelerated-mode [style*="backdrop-filter"] {
  filter: none !important;
  backdrop-filter: none !important;
}

/* 強制應用不透明背景 */
body.accelerated-mode .background,
body.accelerated-mode .overlay,
body.accelerated-mode .card,
body.accelerated-mode .dialog {
  background: var(--bg) !important;
}

body.accelerated-mode [style*="background"],
body.accelerated-mode [style*="background-color"] {
  background: var(--bg) !important;
  background-color: var(--bg) !important;
}

/* 主題特定樣式 */
body.accelerated-mode.theme-dark div,
body.accelerated-mode.theme-dark header {
  background: #000000 !important;
  background-color: #000000 !important;
}

body.accelerated-mode div,
body.accelerated-mode header {
  background: #ffffff !important;
  background-color: #ffffff !important;
}

/* 確保視頻播放流暢 */
body.accelerated-mode video {
  will-change: transform;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}