/* 主題切換漸變過渡動畫 */
.theme-transition-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  will-change: clip-path;
  background-attachment: fixed;
}

.theme-transition-overlay.light-to-dark {
  background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
}

.theme-transition-overlay.dark-to-light {
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}