body {
    background-color: #212327;
    font: "apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji";
  }
  
  #component-container {
    margin-bottom: 100px;
  }
  
  
  
  .navbar-expand-lg .navbar-nav .nav-link {
    font-size: 14px;
    padding-right: 0px;
    padding-left: 0px;
  }
  

 
  .bottom_item {
    height: 350px;
    margin-bottom: 100px;
    margin-top: 120px;
  }
  
  .bottom_item img {
    width: 700px;
  }
  
  .bottom_item img+.tx_wrap {
    margin-left: 60px;
  }
  
  .bottom_item .tx_wrap+img {
    margin-left: 60px;
  }
  
  .bottom_item .tx_wrap {
    width: 560px;
  }
  
  .bottom_item .title {
    font-size: 30px;
    font-weight: normal;
    font-stretch: normal;
    line-height: 35px;
    letter-spacing: 0px;
    padding-bottom: 25px;
    margin-bottom: 0;
  }
  
  .bottom_item .title a {
    color: #ffffff;
  }
  
  .bottom_item .text {
    font-size: 16px;
    font-weight: normal;
    font-stretch: normal;
    line-height: 35px;
    letter-spacing: 1px;
    color: #d3d3d3;
    text-align: justify;
  }
  
  .tx_wrap ul {
    color: #d3d3d3;
    margin-left: 20px;
    line-height: 34px;
    font-size: 16px;
    letter-spacing: 1px;
  }
  
  .text div {
    width: 10px;
    height: 2px;
    background-color: #9f9f9f;
  }
  
 
 
  
  .bg3 .bottom_con {
    opacity: 0;
    z-index: 100;
    position: absolute;
    width: 100%;
    height: 100%;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
  }
  
  .bg3 .bottom_con.active {
    opacity: 1;
    /* animation: myfirst2 0.3s 1; */
    transform-origin: center;
    z-index: 101;
  }
  
  .web_nav {
    background-color: rgb(26, 28, 32);
    position: sticky;
    z-index: 1000;
    top: 0;
    width: 100%;
    height: 80px;
    padding: 13px 10px;
  }
  
  .web_nav a {
    color: #fff;
    font-size: 14px;
  }
  
  .web_nav .nav-item {
    position: relative;
    overflow: hidden;
    margin-right: 20px;
    margin-left: 20px;
  }
  
  .web_nav .nav-item:hover {
    overflow: visible;
  }
  
  .web_nav .nav-item:hover a {
    color: #6698ff;
  }
  
  .web_nav .nav-item:hover .nav_list {
    top: 23px;
    opacity: 1;
    height: 72px;
    transition: all 0.5s;
  }
  
  .web_nav .nav-item:hover .nav_list .nav_list_ {
    background-color: #fff;
    border-radius: 3px;
    height: 100%;
    top: 22px;
  }
  
  .web_nav .nav-item .nav_list {
    position: absolute;
    top: 140px;
    opacity: 0;
    padding-top: 10px;
    width: 200px;
    z-index: 200;
  }
  
  .web_nav .nav-item .nav_list .nav_list_ {
    position: absolute;
    width: 100%;
    left: 0px !important;
    top: 0px;
    background-color: #fff;
    border-radius: 3px;
  }
  
  .web_nav .nav-item .nav_list a {
    color: #333;
  }
  
  .web_nav .nav-item:hover .line {
    width: 100%;
  }
  
  .web_nav .line {
    display: block;
    position: absolute;
    bottom: 0;
    width: 0;
    height: 2px;
    background-color: #6698ff;
    transition: width 0.2s;
    bottom: 0px;
    border-radius: 10px;
  }
  
  .navbar-brand {
    width: 114px;
    height: 36px;
    /* margin-left: 100px; */
    margin-right: 80px;
    line-height: 34px;
  }

/* 中心内容开始 */

.describe .banner{
  margin: 0 auto;
  background-image: url('../images/custom_applications/banner.jpg');
  width:100% ;
  height: 480px;
  background-size: 100% 100%;
  overflow: hidden;
}
.banner_content{
  width: 1200px;
  margin:0  auto;
  margin-top: 40px;
}
.describe .banner h2{
  color: #fff;
  font-size: 24px;
  line-height: 50px;
}

.describe .banner .btn{
  width: 300px;
  line-height: 30px;
  background-color: #3370ff;
  color: #fff;
  font-size: 20px;
  margin-top: 30px;
  text-align: center;
  margin-left: 150px;
}

.describe .banner .btn p{
  margin-bottom: 0;
  letter-spacing: 1px;
}












.describe .text{
  color: #fff;
  margin-top: 40px;
  font-size: 16px;
  line-height: 38px;
  width: 650px;
  text-align: justify;
}
.works_content{
  width: 1200px;
  margin: 0 auto;
}
.works_list{
  margin-top: 10px;
  display: flex;
  justify-content:space-between;
  flex-wrap: wrap;
}
.works_list .about-box{
  position: relative;
}


.works_list li{
  width: calc(100%/3 - 20px) ;
  margin-top: 20px;
  list-style: none;
}
.works_list li img{
  width: 100%;
}
.works_list li .list_title{
    font-size: 20px;
    font-weight: normal;
    font-stretch: normal;
    letter-spacing: 0px;
    padding-bottom: 10px;
    margin-bottom: 0;
    color: #fff;
    margin-top: 20px;
}
.works_list li .list_title span{
    font-size: 16px;
    font-weight: normal;
    font-stretch: normal;
    line-height: 30px;
    letter-spacing: 1px; 
}
.works_list li .list_text{
    font-size: 16px;
    font-weight: normal;
    font-stretch: normal;
    line-height: 30px;
    letter-spacing: 1px;
    color: #d3d3d3;
}
.works_list li .list_text p{
  margin-bottom: 0;
  text-align: justify;
}
.works_list li video{
  display: block;
}









  
  /* 自定义样式 */
  .logo {
    margin-left: 90px;
    margin-right: 120px;
  }
  

 
  footer {
    background-color: #212327;
    padding-top: 60px;
  
    border: 1px solid transparent;
  }
  
  footer .foot_con {
    padding-bottom: 21px;
  }
  
  footer .foot_con .left a {
    font-size: 14px;
    font-weight: normal;
    font-stretch: normal;
    line-height: 14px;
    letter-spacing: 0px;
    color: #9f9f9f;
    margin-right: 40px;
  }
  
  footer .foot_con img {
    width: 121px;
  }
  
  footer .txt {
    flex: 1;
    font-size: 14px;
    font-weight: normal;
    font-stretch: normal;
    line-height: 27px;
    letter-spacing: 0px;
    color: #9f9f9f;
    padding: 20px 0 28px;
    text-align: center;
    border-top: 1px solid #323232;
    width: 1200px;
    margin: 0 auto;
  }
  
  footer .txt a {
    color: #9f9f9f;
    text-decoration: none;
  }
  
 
  
  .swiper_con .swiper_con_item div.img_modal {
    width: 100%;
    position: absolute;
    left: 0;
    background-color: #000000;
    /* opacity: .8; */
  
  }