.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: all 0.5s;
  border-bottom: 1px solid rgba(255, 255, 255, 0.24);
}
.header .head-bg {
  padding-top: 0;
  padding-bottom: 0;
  transition: all 0.5s;
}
.header .head-bg .logo img {
  display: block;
  cursor: pointer;
  margin-right: 2vw;
  width: auto;
  height: 36px;
}
.header .head-bg .logo-blue {
  display: none;
}
.header .head-bg .nav li > a {
  display: block;
  line-height: 64px;
  padding: 0 10px;
  font-size: 12px;
  color: #fff;
  transition: all 0.3s;
}
.header .head-bg .nav li::after {
  display: block;
  content: '';
  height: 2px;
  background-color: #0052D9;
  opacity: 0;
}
.header .head-bg .nav li.active a {
  color: #0052D9;
}
.header .head-bg .nav li.active::after {
  width: 100%;
  opacity: 1;
  transition: all 0.5s;
}
.header .head-bg .nav-icon a {
  color: #fff;
  padding: 10px;
  font-size: 20px;
  margin-left: 10px;
}
.header .head-bg .nav-icon a p {
  font-size: 12px;
  margin-left: 10px;
}
.header .head-bg .nav-icon a#nav-detail {
  width: 0;
  transition: all 0.5;
  padding: 0;
  margin-left: 0;
}
.header .nav-second {
  width: 100%;
}
.header .nav-second .nav-child {
  height: 402px;
  background-color: #fff;
  overflow: hidden;
  background-image: -webkit-linear-gradient(left, #45B035 0, #45B035 18.75%, #005BAC 18.75%, #005BAC 100%), url(../img/navchild-bg2.png), -webkit-linear-gradient(left, #F5F7FA, #F5F7FA), url(../img/navchild-bg1.png);
  background-image: -o-linear-gradient(left, #45B035 0, #45B035 18.75%, #005BAC 18.75%, #005BAC 100%), url(../img/navchild-bg2.png), -o-linear-gradient(left, #F5F7FA, #F5F7FA), url(../img/navchild-bg1.png);
  background-image: linear-gradient(to right, #45B035 0, #45B035 18.75%, #005BAC 18.75%, #005BAC 100%), url(../img/navchild-bg2.png), linear-gradient(to right, #F5F7FA, #F5F7FA), url(../img/navchild-bg1.png);
  background-position: center bottom, calc((100vw - 1200px) / 2 + 234px - 263px) bottom, left center, right bottom;
  background-repeat: no-repeat;
  background-size: 100% 4px, 263px auto, calc((100vw - 1200px) / 2 + 234px) 100%, auto 100%;
  box-shadow: 8px 20px 30px 0px rgba(61, 110, 153, 0.1), inset 0px 10px 20px 0px rgba(61, 110, 153, 0.1);
}
.header .nav-second .nav-child:empty {
  height: 0;
}
.header .nav-second .nav-child .nav-left {
  width: 234px;
  margin-right: 70px;
}
.header .nav-second .nav-child .nav-left dl {
  padding-right: 20px;
  padding-top: 40px;
}
.header .nav-second .nav-child .nav-left dl dt {
  font-size: 16px;
  color: #000;
  font-weight: bold;
  margin-bottom: 23px;
}
.header .nav-second .nav-child .nav-left dl dd {
  font-size: 12px;
  color: #86909C;
  line-height: 20px;
  text-align: justify;
}
.header .nav-second .nav-child .nav-left .left-tab {
  padding-top: 30px;
}
.header .nav-second .nav-child .nav-left .left-tab li {
  line-height: 48px;
}
.header .nav-second .nav-child .nav-left .left-tab li.on a {
  color: #0052D9;
  font-weight: bold;
}
.header .nav-second .nav-child .nav-right {
  padding-top: 40px;
  height: 402px;
}
.header .nav-second .nav-child .nav-right h3 {
  font-size: 16px;
  color: #0052D9;
  padding-bottom: 22px;
  margin-bottom: 20px;
  border-bottom: 1px solid #E4E4E4;
}
.header .nav-second .nav-child .nav-right dl {
  width: 25%;
}
.header .nav-second .nav-child .nav-right dl dt {
  font-size: 16px;
  color: #0052D9;
  line-height: 36px;
  font-weight: bold;
}
.header .nav-second .nav-child .nav-right dl dd {
  max-height: 260px;
}
.header .nav-second .nav-child .nav-right dl a {
  line-height: 36px;
}
.header .nav-second .nav-child .nav-right .nav-tabitem {
  opacity: 0;
  visibility: hidden;
  transition: 0.5s;
  position: absolute;
  top: 40px;
  left: 0;
  right: 0;
  bottom: 0;
}
.header .nav-second .nav-child .nav-right .nav-tabitem.show {
  opacity: 1;
  visibility: visible;
}
.header:hover .head-bg,
.header.scroll-header .head-bg {
  padding-top: 0;
  padding-bottom: 0;
  position: relative;
  transition: all 0.5s;
  background-color: #ffffff;
  box-shadow: 0px 1px 30px rgba(53, 53, 53, 0.1);
}
.header:hover .head-bg .logo img,
.header.scroll-header .head-bg .logo img {
  display: block;
}
.header:hover .head-bg .logo-while,
.header.scroll-header .head-bg .logo-while {
  display: none;
}
.header:hover .head-bg .logo-blue,
.header.scroll-header .head-bg .logo-blue {
  display: block;
}
.header:hover .head-bg .nav li a,
.header.scroll-header .head-bg .nav li a {
  color: #353535;
}
.header:hover .head-bg .nav li.active a,
.header.scroll-header .head-bg .nav li.active a {
  color: #0F4696;
}
.header:hover .head-bg .nav-icon a,
.header.scroll-header .head-bg .nav-icon a {
  color: #0F4696;
}
@media screen and (max-width: 1280px) {
  .header .head-bg .logo img {
    margin-right: 3vw;
  }
  .header .head-bg .nav li > a {
    line-height: 64px;
    color: #fff;
    transition: all 0.5s;
  }
  .header .head-bg .nav-icon a {
    color: #fff;
    padding: .3em;
    font-size: 20px;
    margin-left: 0;
  }
  .header .head-bg .nav-icon a p {
    margin-left: .2em;
  }
  .header .nav-second .nav-child a {
    margin-right: 2vw;
  }
}
@media screen and (max-width: 1080px) {
  .header .head-bg .logo {
    -webkit-box-flex: 1;
    -ms-flex: 1;
    -webkit-flex: 1;
    flex: 1;
    min-width: 0;
  }
  .header .head-bg .nav {
    display: none;
    transition: all 0.5s;
  }
  .header .head-bg .nav-icon a#nav-detail {
    width: auto;
    padding: 10px;
    margin-left: 0;
  }
}
@media screen and (max-width: 992px) {
  .header .head-bg {
    padding-top: 0;
    padding-bottom: 0;
    position: relative;
    transition: all 0.5s;
    background-color: #ffffff;
    box-shadow: 0px 1px 30px rgba(53, 53, 53, 0.1);
  }
  .header .head-bg .logo img {
    display: block;
    max-width: 40vw;
    height:auto;
    transition: all 0.5s;
  }
  .header .head-bg .logo-while {
    display: none;
  }
  .header .head-bg .logo-blue {
    display: block;
  }
  .header .head-bg .nav li a {
    color: #353535;
  }
  .header .head-bg .nav li.active a {
    color: #0F4696;
  }
  .header .head-bg .nav-icon a {
    color: #0F4696;
  }
  .header:hover .head-bg {
    padding-top: 10px;
    padding-bottom: 10px;
  }
  .header .pop-right {
    display: none;
  }
}
.header #nav .nav-top {
  display: none;
  padding: .5em 1em;
}
.header #nav .logo img {
  max-width: 70%;
  height: 3em;
}
.header #nav .nav-close {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid #757575;
  cursor: pointer;
}
.header #nav .nav-close .lvfaweb {
  color: #757575;
}
.header #nav .nav-close:hover {
  background-color: #0F4696;
  border-color: #0F4696;
}
.header #nav .nav-close:hover .lvfaweb {
  color: #fff;
}
@media screen and (max-width: 1080px) {
  .header #nav {
    width: 1px;
    height: 1px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.5s;
    background-color: #fff;
  }
  .header #nav.nav-popup {
    overflow: hidden;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 3;
    opacity: 1;
    width: 100%;
    height: 100%;
    transition: all 0.5s;
    visibility: visible;
  }
  .header #nav.nav-popup .nav-child.hide {
    display: block;
  }
  .header #nav.nav-popup .img-cov {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .header #nav.nav-popup .nav-box {
    top: 24px;
    width: 1440px;
    transition: all 0.5s;
  }
  .header #nav.nav-popup .nav-box .nav-list {
    padding-top: 80px;
    opacity: 1;
  }
  .header #nav.nav-popup .nav-box .nav-list .nav-li h3 {
    color: #fff;
    font-size: 24px;
    margin-bottom: 36px;
    cursor: pointer;
    transition: all 0.5s;
  }
  .header #nav.nav-popup .nav-box .nav-list .nav-li .nav-item a {
    display: block;
    color: #fff;
    font-size: 18px;
    line-height: 45px;
    display: -webkit-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    align-items: center;
    transition: all 0.5s;
  }
  .header #nav.nav-popup .nav-box .nav-list .nav-li .nav-item a::after {
    display: inline-block;
    content: '\e686';
    font-family: 'lvfaweb';
    font-size: 30px;
    opacity: 0;
  }
  .header #nav.nav-popup .nav-box .nav-list .nav-li .nav-item a:hover::after {
    opacity: 1;
  }
  .header #nav.nav-popup .nav-top {
    display: flex;
    padding: .2em 1em;
  }
  .header .nav-second {
    overflow-y: auto;
  }
  .header .nav-second .nav-child {
    height: auto;
    background-color: #fff;
    overflow: hidden;
    background-image: -webkit-linear-gradient(left, #45B035 0, #45B035 18.75%, #005BAC 18.75%, #005BAC 100%), url(../img/navchild-bg1.png);
    background-image: -o-linear-gradient(left, #45B035 0, #45B035 18.75%, #005BAC 18.75%, #005BAC 100%), url(../img/navchild-bg1.png);
    background-image: linear-gradient(to right, #45B035 0, #45B035 18.75%, #005BAC 18.75%, #005BAC 100%), url(../img/navchild-bg1.png);
    background-position: center bottom, 0 bottom,left center, right bottom;
    background-repeat: no-repeat;
    background-size: 100% 2px,auto 100%;
    box-shadow: 8px 20px 30px 0px rgba(61, 110, 153, 0.1), inset 0px 10px 20px 0px rgba(61, 110, 153, 0.1);
  }
  .header .nav-second .nav-child:empty {
    height: 0;
  }
  .header .nav-second .nav-child > .content {
    padding: 0;
  }
  .header .nav-second .nav-child .nav-left {
    display: none;
  }
  .header .nav-second .nav-child .nav-left dl {
    display: none;
    padding-right: 20px;
    padding-top: 40px;
  }
  .header .nav-second .nav-child .nav-left dl dt {
    font-size: 16px;
    color: #000;
    font-weight: bold;
    margin-bottom: 23px;
  }
  .header .nav-second .nav-child .nav-left dl dd {
    font-size: 12px;
    color: #86909C;
    line-height: 20px;
    text-align: justify;
  }
  .header .nav-second .nav-child .nav-left .left-tab {
    padding-top: 30px;
  }
  .header .nav-second .nav-child .nav-left .left-tab li {
    line-height: 48px;
  }
  .header .nav-second .nav-child .nav-left .left-tab li.on a {
    color: #0052D9;
    font-weight: bold;
  }
  .header .nav-second .nav-child .nav-right {
    padding: 0;
    height: auto;
  }
  .header .nav-second .nav-child .nav-right h3 {
    font-size: 16px;
    color: #0052D9;
    padding: 1em;
    margin-bottom: 0;
    border-top: 1px solid #E4E4E4;
    border-bottom: 1px solid #E4E4E4;
    background-color: #F5F7FA;
  }
  .header .nav-second .nav-child .nav-right dl {
    width: 50%;
    padding: 1em;
    box-sizing: border-box;
  }
  .header .nav-second .nav-child .nav-right dl dt {
    font-size: 16px;
    color: #577ed6;
    line-height: 36px;
    font-weight: bold;
  }
  .header .nav-second .nav-child .nav-right dl dd {
    max-height: auto;
  }
  .header .nav-second .nav-child .nav-right dl a {
    line-height: 3.5em;
  }
  .header .nav-second .nav-child .nav-right > dl {
    width: 100%;
  }
  .header .nav-second .nav-child .nav-right > dl dd {
    max-height: auto;
    -ms-flex-direction: row;
    -webkit-flex-direction: row;
    flex-direction: row;
  }
  .header .nav-second .nav-child .nav-right > dl dd a {
    width: 50%;
    margin-right: 0;
  }
  .header .nav-second .nav-child .nav-right .nav-tabitem {
    opacity: 1;
    visibility: visible;
    transition: 0.5s;
    position: static;
    padding-bottom: 1em;
    top: 40px;
    left: 0;
    right: 0;
    bottom: 0;
  }
  .header .nav-second .nav-child .nav-right .nav-tabitem .nav-item {
    flex-wrap: wrap;
  }
  .header .nav-second .nav-child .nav-right .nav-tabitem.show {
    opacity: 1;
    visibility: visible;
  }
}
@media screen and (max-width: 992px) {
  .main-nav .nav-box {
    width: calc(100% - 40px);
  }
  .main-nav .nav-box .nav-list .nav-li h3 {
    font-size: 20px;
  }
  .main-nav .nav-box .nav-list .nav-li .nav-item a {
    font-size: 16px;
    line-height: 40px;
  }
}
@media screen and (max-width: 768px) {
  .main-nav .img-cov::after {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
    content: '';
    background-color: rgba(0, 0, 0, 0.2);
  }
  .main-nav .nav-box {
    top: 1em;
    width: calc(100% - 1.5em);
    height: calc(100vh - 2em);
    display: -webkit-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    -webkit-box-orient: vertical;
    -ms-flex-direction: column;
    -webkit-flex-direction: column;
    flex-direction: column;
  }
  .main-nav .nav-box .logo img {
    max-width: 70%;
  }
  .main-nav .nav-box .nav-close {
    width: 1.5em;
    height: 1.5em;
    border-radius: 50%;
    border: 1px solid #fff;
    cursor: pointer;
  }
  .main-nav .nav-box .nav-close .lvfaweb {
    color: #fff;
  }
  .main-nav .nav-box .nav-close:hover {
    background-color: #0F4696;
    border-color: #0F4696;
  }
  .main-nav .nav-box .nav-list {
    padding-top: 0;
    opacity: 1;
    display: block;
    -webkit-box-flex: 1;
    -ms-flex: 1;
    -webkit-flex: 1;
    flex: 1;
    min-width: 0;
    overflow-y: auto;
  }
  .main-nav .nav-box .nav-list .nav-li h3 {
    color: #fff;
    font-size: 20px;
    margin-top: 1em;
    margin-bottom: .5em;
    padding-top: .5em;
    cursor: pointer;
  }
  .main-nav .nav-box .nav-list .nav-li .nav-item {
    display: flex;
    flex-wrap: wrap;
  }
  .main-nav .nav-box .nav-list .nav-li .nav-item a {
    width: 50%;
    display: block;
    color: #fff;
    font-size: 16px;
    line-height: 40px;
    display: -webkit-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    align-items: center;
  }
  .main-nav .nav-box .nav-list .nav-li .nav-item a::after {
    display: inline-block;
    content: '\e686';
    font-family: 'lvfaweb';
    font-size: 30px;
    opacity: 0;
  }
  .main-nav .nav-box .nav-list .nav-li .nav-item a:hover::after {
    opacity: 1;
  }
  .main-nav .nav-box .nav-list .nav-li + .nav-li h3 {
    border-top: 1px solid rgba(255, 255, 255, 0.5);
  }
}