/*====================导航*********/
.header {
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 999;
  height: 110px;
  /*background: rgba(28, 35, 39, 0.8);*/
}
.header .container-fluid {
  padding: 0 10%;
}
/*左侧logo*/
.header .left {
  width: 20%;
  margin-top: 26px;
}
.header .left a img {
  height: 50px;
  margin-top: 2px;
}
.header .left .img2 {
  display: none;
}
/*右侧*/
.header .nav {
  -webkit-transition: 0.5s;
  -moz-transition: 0.5s;
  -o-transition: 0.5s;
  transition: 0.5s;
  height: 100%;
  line-height: 110px;
  display: block;
}
.header .navbar_nav li {
  float: left;
  position: relative;
  display: block;
}
.header .navbar_nav li:after {
  content: "";
  width: 0;
  height: 2px;
  background: #023e88;
  position: absolute;
  bottom: 0;
  left: 0;
  transition: all 0.5s ease 0s;
}
.header .navbar_nav li:hover:after {
  width: 100%;
}
.header .navbar_nav li a {
  text-decoration: none;
  height: 100%;
  padding: 0 25px;
  display: block;
  -webkit-transition: 0.5s;
  -moz-transition: 0.5s;
  -o-transition: 0.5s;
  transition: 0.5s;
  color: #fff;
  font-size: 16px;
}
.header .navbar_nav li:hover a {
  color: #023e88;
}
.header .navbar_nav li.dropdown {
  display: inherit;
  position: relative;
}
.header .navbar_nav li.dropdown .jt {
  width: 20px;
  height: 20px;
  background-size: 100% 100%;
  display: block;
}
.header .navbar_nav li.dropdown .dropdown_menu {
  position: fixed;
  top: 110px;
  width: 100%;
  background: url("../images/menu_bg1.jpg") repeat-y center;
  box-shadow: 0 15px 27px 0 rgba(167, 165, 165, 0.38);
  left: 0;
  transition: all 0.5s;
  height: 0;
  overflow: hidden;
}
.header .navbar_nav li.dropdown .dropdown_menu.indexNews {
  background: url("../images/menu_bg2.jpg") repeat-y center;
}
.header .navbar_nav li.dropdown .dropdown_menu.indexSever {
  background: url("../images/menu_bg3.jpg") repeat-y center;
}
.header .navbar_nav li.dropdown .dropdown_menu.indexQuality {
  background: url("../images/menu_bg4.jpg") repeat-y center;
}
.header .navbar_nav li.dropdown .dropdown_menu.indexHuman {
  background: url("../images/menu_bg5.jpg") repeat-y center;
}
.header .navbar_nav li.dropdown .dropdown_menu.indexDevelopment {
  background: url("../images/menu_bg6.jpg") repeat-y center;
}

.header .navbar_nav li.dropdown:hover .dropdown_menu {
  height: 300px;
  -webkit-transition: 0.5s;
  -moz-transition: 0.5s;
  -o-transition: 0.5s;
  transition: 0.5s;
}
.header .navbar_nav li.dropdown .dropdown_menu a {
  font-size: 14px;
  color: #666;
  line-height: 20px;
  text-align: left;
  margin-bottom: 2px;
}
.header .navbar_nav li.dropdown .dropdown_menu .menu_center {
  width: 80%;
  margin: 0 auto;
}
.header .navbar_nav li.dropdown .dropdown_menu .menu_left {
  height: 300px;
  width: 26%;
  float: left;
  background-color: #f7f7f7;
  box-sizing: border-box;
}
.header .navbar_nav li.dropdown .dropdown_menu .menu_left .menu_left_top {
  margin-top: 48px;
}

.header .navbar_nav li.dropdown .dropdown_menu .menu_left h3 {
  font-size: 20px;
  margin: 0 30px 24px 30px;
  text-align: center;
  border-bottom: 1px solid #d6d6d6;
  padding-bottom: 18px;
  line-height: 1;
}
.header .navbar_nav li.dropdown .dropdown_menu .menu_left a {
  font-size: 14px;
  line-height: 32px;
  text-align: center;
}
.header .navbar_nav li.dropdown .dropdown_menu .menu_right {
  height: 300px;
  width: 70%;
  float: right;
}
.header .navbar_nav li.dropdown .dropdown_menu .menu_right {
  height: 300px;
  padding-left: 4%;
  width: 70%;
  float: right;
}
.header .navbar_nav li.dropdown .dropdown_menu .menu_right h3 {
  margin-top: 50px;
  font-size: 24px;
  margin-bottom: 20px;
  line-height: 1;
}
.header .navbar_nav li.dropdown .dropdown_menu .menu_right p {
  font-size: 14px;
  line-height: 1.8;
  width: 70%;
  color: #333;
}
.header .navbar_nav li.dropdown .dropdown_menu .menu_right a {
  font-size: 14px;
  border: 1px solid #cccccc;
  display: block;
  border-radius: 20px;
  text-align: center;
  width: 240px;
  height: 40px;
  line-height: 40px;
  margin-top: 40px;
}
.header .navbar_nav li a i {
  padding-right: 10px;
}

/*白色背景的头部*/
.header.on {
  background: #fff;
  border-bottom: 1px solid #ccc;
}
.header.on .left .img1 {
  display: none;
}
.header.on .left .img2 {
  display: block;
}
.header.on .navbar_nav li a {
  color: #333;
}
.header.on .navbar_nav li:hover a {
  color: #333;
}
#navToggle {
  display: none;
}

.m_nav {
  position: fixed;
  box-shadow: 0 15px 27px 0 rgba(167, 165, 165, 0.38);
  width: 100%;
  height: 100%;
  background: #fff;
  -webkit-transition: all ease 0.5s;
  z-index: 1000;
  opacity: 1;
  visibility: visible;
  margin-top: 0;
  overflow-y: auto;
  transition: all 0.6s cubic-bezier(0.77, 0, 0.175, 1) 0ms;
  top: 0;
  transform: translateX(100%);
}
.m_nav.open {
  transform: translateX(0);
}
.m_nav .top {
  height: 60px;
  padding: 20px;
  box-sizing: border-box;
}
.m_nav .top .closed {
  width: 30px;
  height: 30px;
  vertical-align: middle;
  float: right;
  cursor: pointer;
}
.m_nav .logo {
  width: 100%;
  margin: 0 auto;
}
.m_nav .logo img {
  height: 50px;
  display: block;
  margin: 30px auto;
}
.m_nav .ul {
  margin-top: 30px;
}
.m_nav .ul li {
  padding: 0 20px;
  border-bottom: 1px solid #f5f5f5;
  -webkit-transform: translateY(100%);
  transform: translateY(100%);
  -webkit-transition: all 0.6s cubic-bezier(0.77, 0, 0.175, 1) 0ms;
  transition: all 0.6s cubic-bezier(0.77, 0, 0.175, 1) 0ms;
  opacity: 0;
}
.m_nav.open .ul li {
  opacity: 1;
  -webkit-transform: translateY(0);
  transform: translateY(0);
}
.m_nav .ul li:nth-child(1) {
  -webkit-transition: all 0.2s cubic-bezier(0.77, 0, 0.175, 1) 0ms;
  transition: all 0.2s cubic-bezier(0.77, 0, 0.175, 1) 0ms;
}
.m_nav .ul li:nth-child(2) {
  -webkit-transition: all 0.4s cubic-bezier(0.77, 0, 0.175, 1) 0ms;
  transition: all 0.4s cubic-bezier(0.77, 0, 0.175, 1) 0ms;
}
.m_nav .ul li:nth-child(3) {
  -webkit-transition: all 0.6s cubic-bezier(0.77, 0, 0.175, 1) 0ms;
  transition: all 0.6s cubic-bezier(0.77, 0, 0.175, 1) 0ms;
}
.m_nav .ul li:nth-child(4) {
  -webkit-transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0ms;
  transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0ms;
}
.m_nav .ul li:nth-child(5) {
  -webkit-transition: all 1s cubic-bezier(0.77, 0, 0.175, 1) 0ms;
  transition: all 1s cubic-bezier(0.77, 0, 0.175, 1) 0ms;
}
.m_nav .ul li:nth-child(6) {
  -webkit-transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0ms;
  transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0ms;
}
.m_nav .ul li:nth-child(7) {
  -webkit-transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0ms;
  transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0ms;
}
.m_nav .ul li:nth-child(8) {
  -webkit-transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0ms;
  transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0ms;
}
.m_nav .ul li:nth-child(9) {
  -webkit-transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0ms;
  transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0ms;
}
.m_nav .ul li:nth-child(9) i {
  margin-right: 10px;
}
.m_nav .ul li a {
  text-decoration: none;
  color: #333;
  font-size: 16px;
  height: 50px;
  line-height: 50px;
  width: 100%;
  display: flex;
  justify-content: space-between;
}
.nav_icon {
  transform: rotate(90deg);
}
.m_nav .ul li .dropdown_menu a {
  display: block;
  text-decoration: none;
  color: #666;
  font-size: 13px;
  height: 50px;
  line-height: 50px;
  width: 100%;
  padding-left: 20px;
}
.m_nav .ul li .dropdown_menu {
  display: none;
}
.m_nav .ul li.dropdown.active .dropdown_menu {
  display: block;
}

.m_nav .ul li .dropdown_menu a:last-child {
  border: none;
}
.banner {
  width: 100%;
}
.banner img {
  width: 100%;
}

/*兼容多端样式*/
@media screen and (min-width: 1570px) and (max-width: 1680px) {
  .header .navbar_nav li a {
    padding: 0 18px;
  }
}
@media screen and (min-width: 1200px) and (max-width: 1570px) {
  .header .left {
    width: 20%;
    margin-top: 18px;
  }
  .header .navbar_nav li.dropdown .dropdown_menu {
    top: 90px;
  }
  .header .navbar_nav li.dropdown:hover .dropdown_menu {
    height: 250px !important;
  }
  .header .navbar_nav li.dropdown .dropdown_menu .menu_left {
    height: 250px !important;
  }
  .header .navbar_nav li.dropdown .dropdown_menu .menu_right {
    height: 250px !important;
  }
  .header .navbar_nav li.dropdown .dropdown_menu .menu_right h3 {
    font-size: 20px;
  }
  .header .navbar_nav li a {
    text-decoration: none;
    height: 100%;
    padding: 0 24px;
    display: block;
    -webkit-transition: 0.5s;
    -moz-transition: 0.5s;
    -o-transition: 0.5s;
    transition: 0.5s;
    color: #fff;
    font-size: 15px;
  }
  .header .left a img {
    height: 44px;
    margin-top: 6px;
  }
}
@media screen and (min-width: 992px) and (max-width: 1200px) {
  .header .navbar_nav li a {
    text-decoration: none;
    height: 100%;
    padding: 0 10px;
    display: block;
    -webkit-transition: 0.5s;
    -moz-transition: 0.5s;
    -o-transition: 0.5s;
    transition: 0.5s;
    color: #fff;
    font-size: 14px;
  }
  .header .left a img {
    height: 34px;
    margin-top: 6px;
  }
}
@media screen and (max-width: 992px) {
  .header {
    padding: 0 10px;
  }
  .header #navToggle {
    height: 100%;
    padding: 9px 15px;
    margin-right: -15px;
    display: inline-block;
    float: right;
  }
  .header #navToggle span {
    position: relative;
    width: 25px;
    height: 1px;
    margin-top: 19px;
  }
  .header #navToggle span:before,
  .header #navToggle span:after {
    content: "";
    position: relative;
    width: 100%;
    height: 1px;
    left: 0;
  }
  .header #navToggle span,
  .header #navToggle span:before,
  .header #navToggle span:after {
    -webkit-transition: 0.3s;
    -moz-transition: 0.3s;
    -o-transition: 0.3s;
    transition: 0.3s;
    display: block;
    background: #fff;
  }
  .header.on #navToggle span,
  .header.on #navToggle span:before,
  .header.on #navToggle span:after {
    -webkit-transition: 0.3s;
    -moz-transition: 0.3s;
    -o-transition: 0.3s;
    transition: 0.3s;
    display: block;
    background: #000;
  }
  .header #navToggle span:before {
    top: 8px;
  }
  .header #navToggle span:after {
    bottom: 10px;
  }
  .header #navToggle.open span:before {
    top: 10px;
    -webkit-transform: translateY(-11px) rotate(-45deg);
    -moz-transform: translateY(-11px) rotate(-45deg);
    -ms-transform: translateY(-11px) rotate(-45deg);
    -o-transform: translateY(-11px) rotate(-45deg);
    transform: translateY(-11px) rotate(-45deg);
  }
  .header #navToggle.open span:after {
    bottom: 12px;
    -webkit-transform: translateY(10px) rotate(45deg);
    -moz-transform: translateY(10px) rotate(45deg);
    -ms-transform: translateY(10px) rotate(45deg);
    -o-transform: translateY(10px) rotate(45deg);
    transform: translateY(10px) rotate(45deg);
  }
  .header #navToggle.open span {
    background: none;
  }
  .header #navToggle.open span:before,
  .header #navToggle.open span:after {
    background: #4f4f4f;
  }

  .header .nav {
    display: none;
  }

  .banner img {
    height: 600px;
    object-fit: cover;
  }
  .header .left {
    width: 20%;
    margin-top: 4px;
  }
  .header .left a img {
    height: 32px;
    margin-top: 6px;
  }
  .header {
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 999;
    height: 50px !important;
    padding: 0;
  }
  .n_main .n_nav_list .left {
    display: none;
  }
}