.hero-section {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

/* 图片容器 */
.hero-images {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: scale(1);
  transition: opacity 0s ease, transform 4.8s ease; /* 渐显 + 缩放 */
}

.hero-img.active {
  opacity: 1;
  transform: scale(1.1); /* 放大效果 */
  z-index: 1;
}

/* 遮罩层（保持原有） */
.video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: black;
  opacity: 0;
  transition: opacity 0.8s ease;
  z-index: 2;
  pointer-events: none;
}

.video-overlay.active {
  opacity: 1;
}

/* 指示器保持原样 */
.video-indicators {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 20px;
  z-index: 3;
}

.indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.4);
  transition: background-color 0.3s, transform 0.3s;
  cursor: pointer;
}
.indicator:hover {
  background-color: rgba(255, 255, 255, 0.8);
  transform: scale(1.3);
}
.indicator.active {
  background-color: #ffffff;
}