/* 2026-09-11：避免手機頁首的濾鏡定位環境壓縮右側選單高度。 */
@media (max-width:860px){
  #site-header nav{
    position:absolute;
    top:100%;
    right:0;
    bottom:auto;
    height:calc(100vh - 72px);
    height:calc(100dvh - 72px);
    max-height:calc(100vh - 72px);
    max-height:calc(100dvh - 72px);
    box-sizing:border-box;
    padding-bottom:calc(6rem + env(safe-area-inset-bottom));
    overflow-y:auto;
    overscroll-behavior:contain;
    -webkit-overflow-scrolling:touch;
  }
}