* {
  margin: 0;
  padding: 0;
  list-style: none;
  text-decoration: none;
  font: inherit;
  color: #595959;
  vertical-align: baseline;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}
body {
  font-family: 'Microsoft Yahei', Helvetica, Arial, sans-serif;
  font-size: 14px;
}
.clearfix:after {
  content: '';
  display: table;
  clear: both;
}
.all_size {
  width: 100%;
}
.header {
  background-color: #2e63b8;
  height: 50px;
}
.header .top {
  text-align: center;
}
.header .top ul {
  display: inline-block;
}
.header .top ul li {
  float: left;
  line-height: 50px;
}
.header .top ul li:hover {
  background-color: #b9cff5;
}
.header .top ul li.icon_box {
  position: relative;
}
.header .top ul li.icon_box i {
  position: absolute;
  width: 20px;
  height: 12px;
  background: url("../images/hot.png");
  left: 40px;
  bottom: 5px;
}
.header .top ul li a {
  padding: 0 20px;
  display: block;
  color: #fff;
  font-size: 16px;
}
.bg {
  width: 100%;
  height: 100%;
  background: url("../images/bg.jpg") no-repeat #E2F6FD;
  background-size: 100%;
}
.main {
  width: 916px;
  margin: 28% auto 0 auto;
}
.main .item_list {
  margin: 0 -4px;
}
.main .item_list .item {
  width: 300px;
  float: left;
  margin: 0 4px 20px 4px;
 
}
.main .item_list .item .img_box {
  width: 300px;
  height: 200px;
}
.content_txt {
  padding: 15px 32px 0;
}
.content_txt .title {
  text-align: center;
  font-size: 16px;
  padding-bottom: 8px;
  color: #2e63b8;
  border-bottom: 2px solid #2e63b8;
}
.content_txt .txt {
  font-size: 12px;
  color: #2e63b8;
  line-height: 22px;
  margin-top: 10px;
   height:66px;
  overflow:hidden;
}
.content_txt .icon_txt {
  line-height: 24px;
  font-size: 14px;
  color: #537cc2;
  position: relative;
  padding-left: 47px;
  margin: 20px 0;
}
.content_txt .icon_txt i {
  position: absolute;
  width: 36px;
  height: 19px;
  background: url("../images/icon.png");
  left: 0;
  top: 0;
}
.content_txt .icon_txt span {
  color: #2e63b8;

}
.btn {
  margin: auto;
  cursor: pointer;
  width: 168px;
  height: 28px;
  background: url("../images/btn_icon.png") 0 -1px;
  display:block;
}
.btn:hover {
  background-position-y: -61px;
}
.footer {
  margin: 50px auto;
  text-align: center;
}
.footer ul {
  display: inline-block;
}
.footer ul li {
  float: left;
  margin: 0 3px;
  color: #2e63b8;
}
.footer ul li a {
  color: #2e63b8;
}