* {
  padding: 0;
  margin: 0;
}
body {
  font-family: "微软雅黑", "宋体", "黑体";
  font-size: 16px;
  color: #000;
}
video {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
}
ul,
li {
  list-style: none;
}
a {
  text-decoration: none;
}
.clearfix:after {
  content: "";
  display: block;
  float: none;
  clear: both;
}
.clearfix {
  zoom: 1;
}
.main-width {
  width: 1280px;
  margin: 0 auto;
}
.flex {
  display: flex;
}
.bold {
  font-weight: 600;
}
.fs-18 {
  font-size: 18px;
}
.fs-20 {
  font-size: 20px;
}
.fs-24 {
  font-size: 24px;
}
.fs-38 {
  font-size: 38px;
}
.m-20 {
  margin: 20px 0;
}
.m-t-20 {
  margin-top: 20px;
}
.m-b-20 {
  margin-bottom: 20px;
}
a {
  color: #333;
}
a:hover {
  font-weight: 600;
  color: #000;
}
.main {
  width: 1280px;
  margin: 0 auto;
  overflow: hidden;
}
/*
  公用样式
*/
.header {
  width: 100%;
  background: url(../images/header-bg.png) no-repeat center top;
  background-size: 100% 100%;
  height: 480px;
  overflow: hidden;
}
.header .time {
  display: flex;
  justify-content: space-between;
  color: #ccc;
  padding: 20px 0;
}
.header .logo {
  text-align: center;
  margin-top: 5%;
}
.header .search {
  width: 400px;
  background: #e8eff7;
  display: flex;
  padding: 4px 4px 4px 20px;
  border-radius: 40px;
  overflow: hidden;
  margin: 40px auto 0;
  box-shadow: 0 2px 12px rgba(45, 108, 182, 0.5);
}
.header .search-input {
  border: 0;
  background: #e8eff7;
  display: block;
  width: 100%;
  height: 40px;
  font-size: 16px;
}
.header .search-btn {
  background: #fff url(../images/search.png) no-repeat center center;
  display: block;
  border: 0;
  text-indent: -9999px;
  width: 80px;
  height: 40px;
  border-radius: 20px;
  margin-left: 10px;
}
.menu {
  background: #2a5494;
}
.menu > ul {
  display: flex;
  width: 1280px;
  margin: 0 auto;
  justify-content: space-between;
}
.menu ul li {
  text-align: center;
  position: relative;
}


.menu ul li > ul {
  position: absolute;
  left: 0;
  top: 60px;
  display: none;
}
.menu ul li.more-text > ul {
  left: -84px;
  background: #3c7ad9;
}
.menu ul li > ul:after {
  content: "";
  position: absolute;
  top: -6px;
  left: 50%;
  margin-left: -6px;
  border-bottom: 6px solid rgb(255, 255, 255);
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
}
.menu ul li:hover ul {
  display: block;
  z-index: 999;
  background: #3c7ad9;
}
.menu ul li a {
  height: 60px;
  display: block;
  line-height: 60px;
  color: #fff;
  padding: 0 30px;
  font-size: 18px;
}


.menu ul li > a {
    padding: 0 10px;
}

.menu ul li.more-text ul li {
  width: 300px;
}
.menu ul li a:hover {
  background: #3c7ad9;
}
.menu ul li a.active {
  background: #3c7ad9;
}
.ellipsis {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.mt-20 {
  margin-top: 20px;
}
.w-500 {
  width: 500px;
}
.w-400 {
  width: 400px;
}
.w-300 {
  width: 300px;
}
.m-20 {
  margin: 0 20px;
}
.m-40 {
  margin: 0 40px;
}
.footer {
  padding: 30px 0;
  background: #2b6bb5;
  color: #fff;
  text-align: center;
}
.friend-link {
  background: #eee;
  padding: 30px 0;
}
.friend-link .h2 {
  color: #2b6bb5;
  font-size: 20px;
}
.friend-link ul {
  display: flex;
  margin-top: 20px;
}
.friend-link ul li {
  padding-right: 20px;
}
.friend-link ul li a {
  margin-right: 20px;
}
.friend-link ul li span {
  color: #aaa;
}
.hide {
  display: none;
}