.head {
  width: 100%;
  padding-top: 17px;
  background-color: #3838AA;
  height: 72px;
}
.head .head_main {
  width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
}
.head .logo {
  display: flex;
  align-items: center;
}
.head .logo .logo_icon {
  width: 54px;
  height: 54px;
  background: url(../images/logo.png) no-repeat;
  background-size: 100% 100%;
}
.head .logo .logo_title {
  font-size: 22px;
  font-weight: 400;
  color: #FFFFFF;
  margin-left: 17px;
}
.head .nav ul {
  height: 54px;
  line-height: 54px;
  display: flex;
  flex-wrap: nowrap;
}
.head .nav ul li {
  font-size: 17px;
  font-weight: 400;
  color: #FFFFFF;
  margin-left: 44px;
}
.head .nav ul li a {
  font-size: 17px;
  font-weight: 400;
  color: #FFFFFF;
}
.head .nav ul .Becom {
  width: 150px;
  height: 40px;
  line-height: 40px;
  text-align: center;
  background: #FFB800;
  border-radius: 22px;
  margin-top: 5px;
  margin-left: 44px;
  font-size: 14px;
}
.head .nav ul .last-li{
  margin-left: 30px;
  position: relative;
}
.head .nav ul .last-li:hover .head .nav ul .last-li .tips{
  display: block;
}
.head .nav ul .last-li a{
  text-decoration: none;
}
.head .nav ul .last-li .tips{
  width: 149px;
  height: 95px;
  border-radius: 5px;
  position: absolute;
  right: -45px;
  top: 50px;
  background: url("../images/logoutBak.png") no-repeat center center;
  background-size: 100% 100%;
  display: none;
}
.head .nav ul .last-li .tips div{
  width: 100px;
  height: 32px;
  background: #ffb800;
  margin: 34px auto 0;
  border-radius: 20px;
  font-size: 17px;
  color: #fff;
  line-height: 32px;
  text-align: center;
}