* {
  box-sizing: border-box;
}

.banner-section {
  padding: 60px 0;
  background: #F5F7FA;
}

.banner-wrapper {
  max-width: 1500px;
  margin: auto;
  overflow: hidden;
  position: relative;
}

.banner-track {
  display: flex;
  gap: 30px;
  transition: transform 0.8s ease-in-out;
}

.banner-item {
  /* Desktop: fixed width slide so JS step works cleanly */
  width: 400px;
  flex-shrink: 0;
  height: 220px;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.banner-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (max-width: 768px) {
  .banner-item {
    width: 320px;
    height: 180px;
  }

  .banner-wrapper {
    max-width: 95%;
  }
}