/* V162：长期使用时隔离频繁滚动区域，避免导航栏滚动重绘扩散到整页。 */
@media (pointer: coarse), (hover: none) {
  #left-rail,
  #left-rail .route-overview__nodes,
  #left-rail .route-overview__nodes ol {
    contain: layout paint style !important;
  }
  #left-rail .route-overview__nodes ol {
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
  }
}

/* 沉浸式2D关闭并完成淡出后，彻底移出渲染/命中树；
   open() 已会移除该 class，因此功能不变。 */
#immersive-map-experience.is-runtime-suspended {
  display: none !important;
  content-visibility: hidden !important;
}