.container{
  position: relative;
  height: 100%;
  display: block;
}
.isMobile{
  display: none;
}
.isPc{
  display: block;
}
.swiper {
  width: 100%;
  height: 100%;
}
.swiper-slide {
  width: 100%;
  height: 100%;
  text-align: center;
  font-size: 18px;
  background: #fff;
  /* Center slide text vertically */
  display: -webkit-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  -webkit-justify-content: center;
  justify-content: center;
  -webkit-box-align: center;
  -ms-flex-align: center;
  -webkit-align-items: center;
  align-items: center;
}

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

.bg{
  background-position: center center;
  overflow: auto;
}
.bg1{
  background: #fff no-repeat;
  background-size: cover;
  position: relative;
}
.bg1 .bg-video{
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  opacity: 0;
  transition: opacity .25s ease;
  z-index: 0;
}
.bg1 .ages,
.bg1 .down-arrow{
  z-index: 1;
}
/* ===== 首页 hero 中间的 coverflow 轮播 ===== */
/* 藤蔓木框：外框走背景图，内嵌轮播按原站比例内缩 */
.hero-frame{
  position: absolute;
  top: 50%;
  /* 整个页面水平居中 */
  left: 50%;
  transform: translate(-50%, -50%);
  width: 760px;          /* 整个边框展示宽度，可调 */
  max-width: 68%;
  aspect-ratio: 705 / 428;
  background: url("../picture/swiper-frame.png") no-repeat center / 100% 100%;
  z-index: 2;
  opacity: .82;          /* 整体透明度，越小越透，可调 */
  filter: drop-shadow(0 10px 30px rgba(0,0,0,.45));
}
.hero-frame .hero-swiper{
  position: absolute;
  left: 13.76%;
  top: 8.88%;
  width: 81.70%;
  height: 85.75%;
  overflow: hidden;
}
.hero-frame .swiper-container{
  width: 100%;
  height: 100%;
}
.hero-frame .swiper-slide{
  background: #172619;
}
.hero-frame .swiper-slide img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.hero-frame .heroSwiper-pagination{
  bottom: 6%;
  text-align: right;
  padding-right: 4%;
}
.hero-frame .heroSwiper-pagination .swiper-pagination-bullet{
  width: 11px;
  height: 11px;
  background: #f5c986;
  opacity: .6;
  margin: 0 5px !important;
}
.hero-frame .heroSwiper-pagination .swiper-pagination-bullet-active{
  opacity: 1;
  background: #ffe08a;
}
.bg2{
  background: url("../images/bg2.jpg")no-repeat;
  background-size: 100% 100%;
}
.bg3{
  background: url("../images/bg3.jpg")no-repeat;
  background-size: 100% 100%;
}
.bg4{
  background: url("../images/bg4.jpg")no-repeat;
  background-size: 100% 100%;
}

.bg .ages{
  position: absolute;
  right: 75px;
  top: 75px;
}

.bg2 .w950{
  width: 950px;
  height: 80%;
  margin: 0 auto;
  position: relative;
}
.bg2 .title{
  width: 180px;
  margin-left: 20px;
  margin-bottom: 20px;
}
.bg2 .news-banner{
  width: 700px;
  position: absolute;
  right: 0;
  top: 7.5%;
}
.bg2 .news-container{
  width: 85%;
  display: flex;
  flex-wrap: wrap-reverse;
  justify-content: start;
}
.bg2 .news-container li{
  width: 228px;
  height: 228px;
  background: url("../images/news-dk.jpg");
  margin: 0 18px;
  color: #eee;
  text-align: left;
  position: relative;
}
.bg2 .news-container li a{
  width: 100%;
  height: 100%;
  color: #eee;
}
.bg2 .news-container li h3{
  margin: 10px 15px;
  padding-bottom: 8px;
  color:#ffd400;
  border-bottom: 4px solid #ffd400;
  display: inline-block;
}

.bg2 .news-container li p.news-title{
  font-size: 16px;
  margin: 0 15px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}
.bg2 .news-container li p.time{
  position: absolute;
  bottom: 15px;
  left: 15px;
}

.bg2 .news-container li:first-of-type{
  background: url("../images/news-dk-1.png");
  order: 4;
}
.bg2 .news-container li:first-of-type a{
  color: #333;
}
.bg2 .news-container li:first-of-type h3{
  color: #ff9900;
  border-bottom: 4px solid #ff9900;
}

.bg2 .news-container li:nth-of-type(2){
  order: 3;
}
.bg2 .news-container li:nth-of-type(3){
  order: 2;
  margin-left: 0;
}
.bg2 .news-container li:last-of-type{
  margin-bottom: 25px;
  margin-left: 0;
  order: 4;
}
.bg2 .more{
  margin-top: 30px;
  text-align: left;
  color: orange;
}



.bg3>div.isPc{
  height: 100%;
  margin-top: 8%;
}
.bg3 .title{
  position: absolute;
  top: 70px;
}
.bg3 .his-container{
  display: flex;
  margin-top: 100px;
  height: 70%;
}
.bg3 .his-container>div{
  padding: 15px;
}
.bg3 .his-container>div:first-of-type a:first-of-type{
  margin-bottom: 15px;
}
.bg3 .his-container>div:last-of-type{
  height: calc(100% - 10px);
}
.bg3 .his-container>div:last-of-type a{
  height: 100%;
}


.bg4{
  
}
.bg4 .title{
  position: absolute;
  top: 70px;
}
.bg4 .five-swiper{
  width: 45%;
  height: 70%;
  margin-top: 100px;
  position: relative;
}
.bg4 .swiper-container{
  width: 82%;
  height: 100%;
}
.bg4 .swiper-container .swiper-slide{
  background: none;
}
.bg4 .swiper-container .swiper-slide img{
  width: auto;
}
.bg4 .five-swiper .swiper-button-prev{
  width: 37px;
  height: 53px;
  display: inline-block;
  background: url("../images/five-left.png");
}
.bg4 .five-swiper .swiper-button-next{
  width: 37px;
  height: 53px;
  display: inline-block;
  background: url("../images/five-right.png");
}
.bg4 .five-swiper .swiper-button-prev:after,.bg4 .five-swiper .swiper-button-next:after{
  content: none;
}
.bg4 .five-swiper .swiper-pagination{
  left: 50%;
  transform:translate( -50%, 100%);
}
.bg4 .five-swiper .my-bullet{
  width: 15px;
  height: 15px;
  display: inline-block;
  background: #fff;
  border-radius: 8px;
  border: 1px solid #503009;
  margin: 0 5px;
  cursor: pointer;
}
.bg4 .five-swiper .my-bullet-active{
  width: 50px;
  background: #ffffa8;
}

.footer{
  position: absolute;
  bottom: 10px;
  z-index: 222;
  width: 100%;
}
.footer a{
  color: #333;
}



@media (max-width: 1580px) {
  .bg2 .w950{
    width: 830px;
  }
  .bg2 .title{
    width: 130px;
  }
  .bg2 .news-container li{
    width: 200px;
    height: 200px;
    background-size: 100% 100%;
  }
  .bg2 .news-container li:first-of-type{
    background-size: 100% 100%;
  }
  .bg2 .news-banner{
    width: 600px;
    top: 4.5%;
  }
  .bg2 .news-container li p.news-title{
    font-size: 14px;
    -webkit-line-clamp: 5;
  }
  .bg2 .news-container li:last-of-type{
    margin-bottom: 30px;
  }
  .bg3 .his-container>div:first-of-type{
    width: 49%;
  }
}

.down-arrow{
  width: 32px;
  height: 40px;
  background: url("../images/down_arrow.png") no-repeat;
  background-size: 100% 100%;
  display: inline-block;
  position: absolute;
  bottom: 2.5%;
  left: 50%;
  margin-left: -10px;
  animation: arrow 1.2s ease-in infinite alternate;
}
@keyframes arrow {
  0% {
    bottom: 2.5%;
  }
  50% {
    bottom: 5%;
  }
  100% {
    bottom: 2.5%;
  }
}














.fixed-left-container{
  display: block;
  width: 18%;
  height: 100%;
  background: rgba(0,0,0,0.2);
  position: absolute;
  left: 0;
  top: 0;
  z-index: 2;
  color: #eee;
  font-size: 16px;
}
.fixed-left-container .logo{
  margin-top: 20%;
}
.fixed-left-container .logo img{
  width: 260px;
  height: auto;
  display: block;
}
.fixed-left-container .download{
  margin-top: 15%;
}
.fixed-left-container .download a{
  margin-top: 10%;
}
.fixed-left-container .video{
  margin-top: 12%;
}
.fixed-left-container .nav{
  margin-top: 12%;
}
.fixed-left-container .nav li{
  margin-top: 15px;
}

.nav .swiper-slide{
  background: none;
  margin: 6px 0;
  text-align: left;
  display: block;
  font-size: 16px;
  cursor: pointer;
  height: 35px!important;
  line-height: 35px;
  box-sizing: border-box;
}
.nav .swiper-slide.swiper-slide-thumb-active,.nav .swiper-slide:hover{
  background: #ccccb2;
  border-radius: 5px;
  color: #503009;
  border: 1px solid #503009;
  font-size: 15px;
  font-weight: 900;
}
.nav .swiper-slide span{
  width: 20px;
  height: 20px;
  display: inline-block;
  margin: 0 15px;
  vertical-align: sub;
}
.nav .swiper-slide i{
  float: right;
  width: 10px;
  height: 18px;
  background: url("../images/right.png")no-repeat;
  background-size: 100% 100%;
  margin-top: 7px;
  margin-right: 10px;
}
.nav .swiper-slide:first-of-type span{
  background: url("../images/gwsy.png")no-repeat;
}
.nav .swiper-slide:nth-of-type(2) span{
  background: url("../images/zxzx.png")no-repeat;
}
.nav .swiper-slide:nth-of-type(3) span{
  background: url("../images/dlls.png")no-repeat;
}
.nav .swiper-slide:last-of-type span{
  background: url("../images/yxts.png")no-repeat;
}

.nav .swiper-slide:first-of-type.swiper-slide-thumb-active span,.nav .swiper-slide:first-of-type:hover span{
  background: url("../images/gwsy-1.png")no-repeat;
}
.nav .swiper-slide:nth-of-type(2).swiper-slide-thumb-active span,.nav .swiper-slide:nth-of-type(2):hover span{
  background: url("../images/zxzx-1.png")no-repeat;
}
.nav .swiper-slide:nth-of-type(3).swiper-slide-thumb-active span,.nav .swiper-slide:nth-of-type(3):hover span{
  background: url("../images/dlls-1.png")no-repeat;
}
.nav .swiper-slide:last-of-type.swiper-slide-thumb-active span,.nav .swiper-slide:last-of-type:hover span{
  background: url("../images/yxts-1.png")no-repeat;
}

.nav .swiper-slide.swiper-slide-thumb-active i,.nav .swiper-slide:hover i{
  background: url("../images/right-1.png")no-repeat;
}