/* Hero Slider Section */
.hero-slider {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9; 
  overflow: hidden;
}

/* Each slide image */
.slide {
  position: absolute;
  top: 0;
  left: 0;
  display: none;
  opacity: 0.85;
  width: 100%;
  height: 100%;
}

.slide.active {
  display: block;
}

.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* 黑色遮罩 */
.hero-slider::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.3);
  z-index: 1;
}

/* 中央文字层 */
.overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: white;
  z-index: 2;
  text-shadow: 2px 2px 10px rgba(0,0,0,0.6);
}

.overlay h1 {
  font-size: 3.2em;
  margin-bottom: 10px;
}

.overlay p {
  font-size: 1.2em;
  max-width: 800px;
  margin: 0 auto;
}

/* 左右箭头 */
.hero-slider .prev,
.hero-slider .next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(0, 0, 0, 0.4);
  color: white;
  font-size: 2rem;
  border: none;
  padding: 12px 18px;
  cursor: pointer;
  z-index: 10;
  border-radius: 50%;
  transition: background 0.3s ease;
}

.hero-slider .prev:hover,
.hero-slider .next:hover {
  background-color: rgba(0, 0, 0, 0.8);
}

.hero-slider .prev {
  left: 20px;
}

.hero-slider .next {
  right: 20px;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-slider {
    aspect-ratio: 16 / 9; 
  }

  .overlay h1 {
    font-size: 2em;
  }

  .overlay p {
    font-size: 1em;
    padding: 0 10px;
  }

  .hero-slider .prev,
  .hero-slider .next {
    font-size: 1.5rem;
    padding: 8px 12px;
  }
}