/* Đốm sáng nhấp nháy nhẹ quanh ảnh minh hoạ Hero (mô phỏng mảnh ghép lấp lánh) */
.cz-hx-md{position:relative}
.cz-hx-spark{position:absolute;width:9px;height:9px;border-radius:50%;pointer-events:none;opacity:0;
  background:radial-gradient(circle,#EAF9FF 0%,#7FE9FF 62%,transparent 74%);
  filter:drop-shadow(0 0 6px rgba(127,233,255,.9));
  animation:czTwinkle 2.8s ease-in-out infinite}
@keyframes czTwinkle{0%,100%{opacity:0;transform:scale(.5)}50%{opacity:1;transform:scale(1)}}
@media (prefers-reduced-motion:reduce){.cz-hx-spark{display:none}}