.headercontent {
  width: 1220px;
  height: 90px;
  position: relative;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.headercontent img {
  display: block;
  width: 130px;
  position: relative;
  margin-top: 10px;
}
.headercontent .nav {
  display: flex;
  align-items: center;
  margin-left: -180px;
}
.headercontent .nav .ischoose {
  color: #FF8800;
}
.headercontent .nav a {
  display: flex;
  -webkit-box-align: center;
  align-items: center;
  position: relative;
  min-width: 36px;
  margin-right: 40px;
  height: 60px;
  cursor: pointer;
  font-size: 18px;
  color: #3c464f;
  font-weight: 800;
  transition: all 0.25s linear;
}
.headercontent .nav a:hover {
  color: #FF8800;
}
.headercontent .nav a::after {
  transition: all 0.25s linear;
  content: " ";
  position: absolute;
  bottom: 0;
  left: 0px;
  right: 0px;
  height: 1px;
  background-color: red;
  width: 0px;
}
.headercontent .nav a:hover::after {
  transition: all 0.25s linear;
  content: " ";
  position: absolute;
  bottom: 0;
  left: 0px;
  right: 0px;
  height: 1px;
  width: 40px;
  background-color: red;
}
.headercontent button {
  height: 36px;
  width: 70px;
  border: 1px solid #FF8800;
  border-radius: 18px;
}