/* nBUN Drifting BG — container-injected canvas (transparent) */
.nbun-dbg-wrap {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: var(--nbun-dbg-z, 0);
  overflow: hidden; /* 確保超出範圍的物件不會撐開網頁 */
}
.nbun-dbg-canvas { 
  width: 100%; 
  height: 100%; 
  display: block; 
}
.nbun-dbg-debug {
  position: absolute; left: 10px; bottom: 10px;
  font: 12px/1.2 -apple-system,BlinkMacSystemFont,Inter,'Noto Sans TC',Arial,sans-serif;
  padding: 6px 10px; border-radius: 999px;
  background: rgba(0,0,0,.55); color: #fff;
  z-index: 999999; pointer-events: none;
}