* {
  margin: 0px;
  padding: 0px;
  /*display: inline block;*/
  list-style: none;
  box-sizing: border-box;
}

/* 头部 */
.top {
  background-color: #cbe2f5;
}

.top-content {
  height: 112px;
}

.img {
  height: 500px;
  background-color: antiquewhite;
}

/* 尾部 */
.footer {
  height: 367px;
  background-color: #3e3f43;
}

.footer-top li{
  margin-top: 35px;
  font-size: 15px;
  color: #ffffff;
}

.footer-top li+li{
    margin-left: 15px;
}

.footer-xian {
  width: 1199px;
  height: 1px;
  background-color: #7f8083;
}

.footer-middle {
  margin-top: 70px;
}

.icon {
  margin-right: 40px;

}

.icon p {
  margin: 0 auto;
  font-size: 15px;
  color: #ffffff;
  margin-bottom: 8px;
}

.icon img {
  width: 140px;
  height: 140px;
  margin-left: 5px;
}

.right-txt p {
  font-size: 15px;
  color: #ffffff;
}

.footer-end {
  height: 60px;
  background-color: #000000;

}

.end-txt {
  margin: 20px 20px 0 20px;
}

.end-txt p {
  font-size: 15px;
  color: #ffffff;

}

/* 副页面左部分 */
.content-left {
  display: flex;
  align-items: baseline;
  
}

.left-top span {
  font-size: 25px;
  color: #5b5c5e;
  margin-bottom: 45px;
}

.left-xian {
  width: 269px;
  height: 1px;
  background-color: #0099ff;
  margin-bottom: 17px;
}






.sider-box {
  width: 272px;
  height: 53px;
  padding: 0px 30px;
  margin-bottom: 3px;
  background-color: #f6f7f9;
}

.sider-box p {
  font-size: 18px;
  color: #ffffff;
  margin: 0px;
}

.sider-box img {
  width: 22px;
  height: 16px;
}

.sider-box.active{
  width: 272px;
  height: 53px;
  background-color: #0099ff;
  color: #fff;
  padding: 0px 30px;
  margin-bottom: 3px;
}

.box2 p {
  font-size: 18px;
  color: #5b5c5e;
  margin: 0px;
}

.left-foot img {
  width: 184px;
  height: 184px;
  margin-top: 30px;
  margin-left: 40px;
}