.header {
  width: 100%;
  margin-bottom: 23px;
}
.header .header-content {
  width: 100%;
  height: 200px;
  background: url(../img/header-bg.png) no-repeat;
  background-size: 100% 100%;
}
.header .header-content .cont {
  width: 1200px;
  height: 100%;
  margin: 0 auto;
}
.header .header-content .cont .logo {
  width: 297px;
  height: 81px;
  float: left;
  margin-top: 60px;
}
.header .header-content .cont .search {
  width: 577px;
  height: 52px;
  float: right;
  border-radius: 6px;
  margin-top: 74px;
  position: relative;
}
.header .header-content .cont .search input {
  width: 457px;
  height: 100%;
  box-sizing: border-box;
  padding-left: 50px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  font-size: 16px;
  color: #999999;
  float: left;
  border-radius: 6px 0px 0px 6px;
  border: 1px solid #C30000;
}
.header .header-content .cont .search .bottom {
  width: 120px;
  height: 100%;
  float: right;
  background-color: #C30000;
  border-radius: 0px 6px 6px 0px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  font-size: 18px;
  color: #FFFFFF;
  line-height: 52px;
  cursor: pointer;
  text-align: center;
}
.header .header-content .cont .search .search-icon {
  width: 17px;
  height: 19px;
  position: absolute;
  left: 19px;
  top: 50%;
  transform: translateY(-50%);
}
.header .nav {
  width: 100%;
  height: 70px;
  background: #1C6DDB;
  text-align: center;
  position: relative;
  min-width: 1200px;
}
.header .nav .nav-active {
  background: #0153CD;
}
.header .nav .nav-item {
  display: inline-block;
  height: 100%;
  padding: 0 40px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  font-size: 20px;
  color: #FFFFFF;
  line-height: 70px;
  cursor: pointer;
  text-decoration: none;
}
.header .nav .nav-item:hover {
  background: #0153CD;
}
.header .nav .sec-nav {
  z-index: 1;
  position: absolute;
  bottom: -189%;
  left: 0;
  width: 100%;
  background-color: #f5f5f5;
  box-sizing: border-box;
  display: none;
}
.header .nav .sec-nav .nav-cont {
  min-width: 1200px;
  margin: 0 auto;
  padding: 0 189px;
}
.header .nav .sec-nav .nav-cont .sec-nav-item {
  display: inline-block;
  height: 66px;
  padding: 0 30px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  font-size: 18px;
  color: #1A1A1A;
  line-height: 66px;
  cursor: pointer;
  text-decoration: none;
}
.header .nav #nav-news:hover ~ .sec-nav {
  display: block;
}
.header .nav .sec-nav:hover {
  display: block;
}
.header .nav #nav-news {
  position: relative;
}
.header .nav #nav-news .arrow {
  width: 15px;
  height: 8px;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 6px;
  background: url(../img/arrow-up.png) no-repeat;
  background-size: 100% 100%;
  display: none;
}