.neg-slider-container {
  position: relative;
  overflow: hidden;
  width: 100%;
  max-width: 1200px;
  margin: auto;
}
.neg-slider-track {
  display: flex;
  transition: transform 0.5s ease-in-out;
}
.neg-slide {
  flex: 0 0 25%;
  box-sizing: border-box;
  padding: 10px;
}
.neg-slide img {
  width: 100%;
  border-radius: 10px;
}
.neg-prev, .neg-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(0,0,0,0.5);
  color: white;
  border: none;
  cursor: pointer;
  padding: 10px 15px;
  border-radius: 50%;
  z-index: 10;
}
.neg-prev { left: 10px; }
.neg-next { right: 10px; }
.neg-prev:hover, .neg-next:hover { background-color: rgba(0,0,0,0.8); }
@media (max-width: 1024px) {
  .neg-slide { flex: 0 0 33.33%; }
}
@media (max-width: 768px) {
  .neg-slide { flex: 0 0 50%; }
}
@media (max-width: 480px) {
  .neg-slide { flex: 0 0 100%; }
}