.banner-box {
  position: relative;
  overflow: hidden;
}

.banner-title {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  color: #fff;
  text-align: center;
}

.banner-title h3 {
  font-size: 48px;
}

.banner-title p {
  font-size: 20px;
}

.banner-box .breadcrumb-box {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  margin-bottom: 20px;
}

.breadcrumb-box .breadcrumb-nav {
  font-size: 14px;
  color: #fff;
}

.breadcrumb-link .iconfont{
  font-size: 14px;
}

.breadcrumb-box .breadcrumb-nav .icon-xiangyou1 {
  font-size: 14px;
}

.breadcrumb-box .breadcrumb-nav .breadcrumb-current {
  font-weight: bold;
}
/* 内容导航 */
.enterting-link-box {
  border-bottom: 1px solid #f9e5e2;
}

.enterting-links .enterting-link {
  padding: 31px 77px;
  display: -ms-flexbox;
  -ms-flex-pack: center;
  -ms-flex-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
}

.enterting-links .enterting-link.active {
  position: relative;
  color: #cd4431;
  background-color: #fff4f2;
}

.enterting-links .enterting-link.active::before {
  content: "";
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-bottom: 10px solid #cd4431;
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
}

/* 容器样式 */
.overview-section {
  font-family: Arial, sans-serif;
}

/* 标题外部样式 */
.overview-title {
  text-align: right;
  position: relative;
  display: inline-block;
}

/* 图标样式 */
.overview-title .title-icon {
  position: absolute;
  top: -10px;
  left: -5px;
  width: 30px;
  height: 20px;
  background: url("/imgs/entering/overview/circle-icon.svg") no-repeat center
    center;
  background-size: contain;
  z-index: 0;
}

/* 主标题样式 */
.overview-title h2 {
  font-size: 34px;
  color: #333;
  font-weight: bold;
  position: relative;
  z-index: 1;
  line-height: 1.2;
  margin: 0;
  display: inline-block;
  background: transparent;
}

.intro-text-translate {
  color: #f3d9d5;
  font-size: 22px;
}

@media (max-width: 992px) {
  .enterting-links .enterting-link {
    padding: 30px 50px;
  }

  .banner-title h3 {
    font-size: 24px;
  }
  
  .banner-title p {
    font-size: 16px;
  }
}

/* content1 */
.content1 {
  background: url("/imgs/entering/developmentRecord/bg-img1.png") no-repeat;
  background-size: 100% 100%;
  padding: 112px 0 170px;
}

.content1-main {
  overflow: hidden;
}

/* 设置 carousel 容器的尺寸 */
.campus-carousel {
  position: relative;
  width: 58%;
  height: 585px;
  margin: 0 auto;
  perspective: 1000px; /* IE10支持perspective,模拟 3D 效果 */
  cursor: grab; /* 鼠标拖动效果 */
}

.campus-carousel:active {
  cursor: grabbing; /* 激活拖动时的光标样式 */
}

.campus-carousel .campus-carousel-item {
  position: absolute;
  width: 100%;
  height: 100%;
  transform-origin: center;
  opacity: 0;
  filter: alpha(opacity=0); /* IE兼容透明度 */
  /* IE10支持transition */
  transition: transform 0.5s ease-in-out;
  margin-top: 40px;
}

.campus-carousel .campus-carousel-item.active {
  opacity: 1;
  filter: alpha(opacity=100);
  /* 放置到最前面 */
  /* transform: translateZ(200px);  */
  z-index: 3; /* 提升显示层次 */
}

.campus-carousel-item .item-main-content {
  height: 374px;
  margin-top: 80px;
  background-color: #fff;
}

@media (max-width: 992px) {
  .content1 {
    padding: 112px 0 70px;
  }

  .campus-carousel {
    height: 395px;
  }
  
  .campus-carousel-item .item-main-content {
    height: 190px;
  }  

  .enterting-links .enterting-link {
    padding: 30px 50px;
  }
}

.campus-carousel .campus-carousel-item .item-intro {
  border-bottom: 1px solid #dddbdb;
  font-size: 50px;
  color: #dddbdb;
  font-weight: bold;
  line-height: 80px;
}

.campus-carousel .campus-carousel-item.active .item-intro {
  position: relative;
  text-align: center;
  color: #cd4431;
}

.campus-carousel .campus-carousel-item.active .item-intro::before {
  content: "";
  display: inline-block;
  width: 16px;
  height: 16px;
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 50%;
  background-color: #cd4431;
}

.campus-carousel .campus-carousel-item.prev {
  opacity: 1;
  filter: alpha(opacity=100);
  transform: translateX(-100%) translateZ(0px) rotateY(0deg);
  z-index: 2;
}

.campus-carousel .campus-carousel-item.prev .item-intro {
  text-align: right;
}

.campus-carousel .campus-carousel-item.prev .item-main-content {
  opacity: 0;
}

.campus-carousel .campus-carousel-item.next {
  opacity: 1;
  filter: alpha(opacity=100);
  transform: translateX(100%) translateZ(0px) rotateY(0deg);
  z-index: 2;
}

.campus-carousel .campus-carousel-item.next .item-intro {
  text-align: left;
}

.campus-carousel .campus-carousel-item.next .item-main-content {
  opacity: 0;
}

.campus-carousel-item .item-main-content .campus-img {
  width: 50%;
}

.campus-carousel-item .item-main-content .campus-img img {
  object-fit: cover;
  vertical-align: bottom;
  height: 100%;
}

.campus-carousel-item .item-main-content .content-list-box {
  width: 50%;
  height: 100%;
  padding: 30px 0;
  box-sizing: border-box;
  background-color: #fff;
}

.campus-carousel-item .item-main-content .content-list {
  /* overflow-y: auto; */
  width: 100%;
  height: 100%;
  overflow-y: scroll;
  line-height: 19px;
  padding: 0 30px;
  background-color: #fff;
  margin-bottom: 0;
}

/* 自定义滚动条样式 */
.campus-carousel-item .item-main-content .content-list::-webkit-scrollbar {
  width: 2px; /* 滚动条宽度 */
}

.campus-carousel-item
  .item-main-content
  .content-list::-webkit-scrollbar-thumb {
  background: #cd4431; /* 滚动条颜色 */
  border-radius: 5px; /* 滚动条圆角 */
}

.campus-carousel-item
  .item-main-content
  .content-list::-webkit-scrollbar-thumb:hover {
  /* 滚动条悬停颜色 */
  background: #555;
  /* background: #cd4431; */
}

.campus-carousel-item
  .item-main-content
  .content-list::-webkit-scrollbar-track {
  background: #f1f1f1; /* 滚动条轨道背景 */
}

.item-main-content .content-list .list-item {
  position: relative;
  margin-top: 20px;
  font-size: 14px;
}

.item-main-content .content-list .list-item:first-child {
  margin-top: 0;
}

.item-main-content .content-list .list-item::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 5px;
  position: absolute;
  top: 8px;
  left: -10px;
  background-color: #cd4431;
  border-radius: 50%;
}

.carousel-operate .iconfont {
  font-size: 26px;
  font-weight: bold;
  margin: 0 10px;
  color: #b9bed3;
  transition: color .3s ease-in-out;
}

.carousel-operate .iconfont:hover {
  color: #cd4431;
}

@media (max-width: 768px) {
  .content1 {
    background: url("/imgs/entering/developmentRecord/mb-bg-img1.png") no-repeat;
    background-size: 100% 100%;
    padding: 65px 0 30px;
  }

  .campus-carousel {
    width: 90%;
    height: 905px;
  }

  .campus-carousel-item .item-main-content {
    height: 300px;
  }

  .campus-carousel-item .item-main-content .campus-img {
    width: 100%;
  }

  .item-main-content .content-list .list-item {
    font-size: 15px;
  }

  .campus-carousel-item .item-main-content {
    margin-top: 44px;
  }
  
  .campus-carousel-item .item-main-content .content-list-box {
    width: 100%;
  }

  .carousel-operate .iconfont {
    font-size: 20px;
  }
}

@media (max-width: 576px) {
  .campus-carousel {
    height: 730px;
  }

  .overview-title h2 {
    font-size: 20px;
  }

  .intro-text-translate {
    font-size: 15px;
  }

  .campus-carousel .campus-carousel-item.prev {
    transform: translateX(-107%) translateZ(0px) rotateY(0deg);
  }

  .campus-carousel .campus-carousel-item.next {
    transform: translateX(107%) translateZ(0px) rotateY(0deg);
  }
}

/* ============ IE10 / IE11 降级：浏览器不支持 object-fit ============ */
/* md 以上 .item-main-content 是 flex，.campus-img 被拉伸到与父级等高（374px），
   IE10/11 下内部 img 同时有 .w-100(width:100%) 和 height:100%，会被拉伸变形。
   这里改为「按高度等比缩放 + 左右居中」，超出部分由 .campus-img 裁掉（IE 下补 overflow:hidden）。
   仅 IE10/IE11 命中（-ms-high-contrast 专有），现代浏览器不受影响。 */
@media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) {
  .campus-carousel-item .item-main-content .campus-img {
    overflow: hidden;
  }

  .campus-carousel-item .item-main-content .campus-img img {
    width: auto !important; /* 覆盖 bootstrap 的 .w-100{width:100%!important} */
    height: 100%;
    position: relative;
    left: 50%;
    transform: translateX(-50%);
  }
}