#head {
  height: 4.8958vw;
}
.head {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 2000;
  background: rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(130px);
}
.head .nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.head .nav .logo_nav_box {
  display: flex;
  align-items: center;
}
.head .nav .logo_nav_box .logo img {
  /* width: 2.6042vw; */
  width:auto;
  height: auto;
  max-width: 100px;
  max-height: 100px;
}
.head .nav .logo_nav_box .nav_list {
  margin-left: 3.8542vw;
}
.head .nav .logo_nav_box .nav_list ul.nav_list_cont {
  display: flex;
}
.head .nav .logo_nav_box .nav_list ul.nav_list_cont > li {
  display: flex;
  align-items: center;
  height: 94px;
}
.head .nav .logo_nav_box .nav_list ul.nav_list_cont > li:nth-child(n + 2) {
  margin-left: 1.9792vw;
}
.head .nav .logo_nav_box .nav_list ul.nav_list_cont > li.active {
  position: relative;
}
.head .nav .logo_nav_box .nav_list ul.nav_list_cont > li.active::before {
  content: "";
  position: absolute;
  bottom: -1.8229vw;
  left: 50%;
  transform: translateX(-50%);
  width: 2.2917vw;
  height: 0.1042vw;
  background: #323232;
}
.head .nav .logo_nav_box .nav_list ul.nav_list_cont > li > a {
  font-size: 0.7292vw;
  font-weight: 400;
  color: #323232;
}
.head .nav .logo_nav_box .nav_list ul.nav_list_cont > li:hover > div {
  display: block !important;
}
.head .nav .search {
  display: flex;
  align-items: center;
  width: 13.4375vw;
  height: 2.6042vw;
  background: rgba(229, 229, 229, 0.88);
  border-radius: 52.0833vw;
  padding-right: 0.8854vw;
}
.head .nav .search .search_ipt {
  flex: 1;
  height: 100%;
}
.head .nav .search .search_ipt input {
  width: 100%;
  height: 100%;
  border: none;
  outline: none;
  padding-left: 1.0417vw;
  background-color: inherit;
}
.head .nav .search .search_icon {
  margin-left: 0.5208vw;
}
.head .nav .search .search_icon img {
  width: 1.25vw;
}
.head_classification {
  display: none;
}
@media screen and (max-width: 750px) {
  #head {
    height: 54px;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(29px);
  }
  #head .nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 9px 15px;
  }
  #head .nav .logo_nav_box {
    display: flex;
    align-items: center;
  }
  #head .nav .logo_nav_box .logo img {
    width: 33px;
  }
  #head .nav .logo_nav_box .nav_list {
    display: none;
  }
  #head .nav .search {
    margin-left: 15px;
    flex: 1;
    display: flex;
    flex-direction: row-reverse;
    align-items: center;
    width: auto;
    height: 36px;
    background: rgba(0, 0, 0, 0.06);
    border-radius: 8px;
    padding-right: 0;
    transition: all 300ms;
  }
  #head .nav .search .search_ipt {
    flex: 1;
    height: 100%;
  }
  #head .nav .search .search_ipt input {
    width: 100%;
    height: 100%;
    border: none;
    outline: none;
    padding-left: 0;
    background-color: inherit;
  }
  #head .nav .search .search_icon {
    margin-left: 14px;
    margin-right: 12px;
  }
  #head .nav .search .search_icon img {
    width: 24px;
  }
  #head .nav .head_classification {
    display: none;
    margin-left: 15px;
  }
  #head .nav .head_classification img {
    width: 26px;
  }
}