.head div:nth-child(1) {
  height: 4.58rem;
  line-height: 4.58rem;
}

.head div:nth-child(1) div:nth-child(1) {
  width: 66.67%;
  display: inline-block;
  vertical-align: top;

}

.head div:nth-child(1) div:nth-child(2) {
  width: 4.35%;
  display: inline-block;
  vertical-align: top;
}

.head div:nth-child(1) img {
  width: 100%;
  vertical-align: middle;

}

.head div:nth-child(1) div:nth-child(1) {
  margin-left: 3.33%;
}

.head div:nth-child(1) div:nth-child(2) {
  margin-left: 20.46%;
}

.search {
  display: none;
  height: 2.91rem;
  line-height: 2.91rem;
  background: #F5F5F5;
}

.search div {
  margin: 0px 7.04%;
  height: 2.91rem !important;
  line-height: 2.91rem !important;
  display: flex;
  justify-content: center;
  align-items: center;
}

.search div input {
  box-sizing: border-box;
  height: 1.75rem;
  border: 0px;
  width: 100%;
  outline: none;
  padding-left: 10px;
  font-size: 0.75rem;
}

.search div button {
  outline: none;
  height: 1.75rem;
  width: 2.91rem;
  background: #e5e5e5;
  border: 0px;
}

.search div button img {
  width: 1.02rem !important;
}

.nav {
  position: relative;
  background: #015293;
  margin-top: 0.75rem;
}

/* .nav:after {
  content: "";
  width: 100%;
  height: 4px;
  display: inline-block;
  box-shadow: 0px 2px 2px 0px #f3f3f3;
  position: absolute;
  top: 2.39rem;
} */

.nav ul {
  height: 2.66rem;
  line-height: 2.66rem;
  display: flex;
  justify-content: space-around;
  font-size: 1rem;
  font-weight: bold;
  color: #333333;
  padding: 0px 3.33%;

}

.nav ul li {
  display: flex;
  justify-content: center;
  flex-direction: column;
  align-items: center;
  position: relative;
}
.nav ul li a{
  color: #fff;
}

.nav_selected>a {
  color: #015293 !important;
}

.nav_selected:after {
  content: "";
  width: 33.7%;
  height: 2px;
  background: #015293;
  position: absolute;
  top: 2rem;
}

/* Í·²¿½áÊø */

@media only screen and (min-width: 320px) {
  html {
    font-size: 75% !important;
  }
}

@media only screen and (min-width: 360px) and (max-width: 374px) {
  html {
    font-size: 84% !important;
  }
}

@media only screen and (min-width: 375px) {
  html {
    font-size: 87.89% !important;
  }
}

@media only screen and (min-width: 414px) {
  html {
    font-size: 97.03% !important;
  }
}

@media only screen and (min-width: 641px) {
  html {
    font-size: 125% !important;
  }
}
@media only screen and (min-width: 767px) {
  html {
    font-size: 150% !important;
  }
}
@media only screen and (min-width: 1023px) {
  html {
    font-size: 200% !important;
  }
}