body {
  min-width: 1500px;
  background-color: #070708;
  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";
}

.web_nav {
  background-color: #000000;
  position: sticky;
  z-index: 1000;
  top: 0;
  height: 80px;
  margin:0 auto;
  min-width: 1500px;
}

.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;
  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-right: 80px;
  line-height: 34px;
}
.navbar-expand-lg .navbar-nav .nav-link{
  padding-left: 8px;
  padding-right: 8px;
}
/* 自定义样式 */
.logo {
  margin-left: 90px;
  margin-right: 120px;
}
.web_content_full {
  margin: 0 auto;
  width:1500px;
}
.bg_img{
  width: 100%;
  /* height:calc(100% - 64px); */
  /* background: url(../images/index/bg-index.jpg) no-repeat; */
  background-size: cover;
  position: relative;
}
.index-container{
  width: 100%;
  padding-top: 160px;
  display: flex;
  justify-content: center;
}
.content-body{
  min-width: 1500px;
  margin:0 auto;
}
.web_content_full+.con_foot {
  margin: 0 auto;
}

.index-container .item {
  text-decoration: none;
  cursor: pointer;
  padding-top: 40px;
  width: 290px;
  height: 360px;
  border-radius: 23px;
  position: relative;
  border: 1px solid rgba(32, 139, 243, 0.6);
}
.index-container .item .flex-col-start{
  align-items: left;
}

.index-container .item-3 {
  color: #ccc;
  border: 1px solid rgba(32, 139, 243, 0.6);
}

.index-container .item-4 {
  border: 1px solid rgba(32, 139, 243, 0.6);
}

.index-container .item .title {
  margin-bottom: 10px;
  font-size: 20px;
  letter-spacing: 2px;
  color: #ffffff;
  padding-left: 20px;
}

.index-container .item .sub-title {
  font-size: 14px;
  line-height: 24px;
  color: #c6c6c6;
  letter-spacing: 1px;
  padding-left: 20px;
}

.index-container .item+.item {
  margin-left: 40px;
}

.index-container .item-1 {
  background: url('../images/index/product_01.png') no-repeat center;
  background-size: cover;
}

.index-container .item-2 {
  background: url('../images/index/product_02.png') no-repeat center;
  background-size: cover;
}

.index-container .item-3 {
  background: url('../images/index/product_03.png') no-repeat center;
  background-size: cover;
}

.index-container .item-4 {
  background: url('../images/index/product_04.png') no-repeat center;
  background-size: cover;
}
.index-container .item-5 {
  background: url('../images/index/product_05.png') no-repeat center;
  background-size: cover;
}

.text{
  color: #a8a8a8;
  width: 960px;
  margin: 0 auto;
  text-align: center;
  font-size: 20px;
  line-height: 30px;
  margin-top: 80px;
  padding-bottom: 84px;
}


/* footer开始 */
footer{
  width: 100%;
  text-align: center;
  background-color: #1e1e1e;
  line-height: 64px;
  border-top: 1px solid #323232;
  color: #bcbcbc;
  text-decoration: none;
  font-size: 14px;
}

.txt a{
  color: #bcbcbc;
  text-decoration: none;
  cursor: pointer;
}