.bg {
  display: block;
  width: 100%;
  position: absolute;
  left: 0;
  top: 0;
  z-index: -1;
}
.header {
  width: 1230px;
  margin: 0 auto;
  margin-top: 80px;
}
.header .logo {
  display: inline-block;
  width: 255px;
  margin-left: 14px;
}
.header .jump-pc {
  display: block;
  width: 145px;
  height: 41px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 0.28rem;
  float: right;
  box-sizing: border-box;
  line-height: 41px;
  text-decoration: none;
  margin-top: 22px;
  margin-right: 24px;
  border: 1px solid rgba(0, 0, 0, 0.3);
  text-align: center;
}
.header .jump-pc .pc-logo {
  width: 18px;
  height: 18px;
  display: inline-block;
  margin-right: 14px;
  vertical-align: sub;
}
.header .jump-pc span {
  font-family: PingFang SC;
  font-weight: 500;
  font-size: 18px;
  color: #DE3231;
}
.header .search {
  width: 480px;
  height: 46px;
  float: right;
  margin-right: 15px;
  margin-top: 17px;
  background-color: #fff;
  border-radius: 6px;
  position: relative;
  border: 1px solid rgba(0, 0, 0, 0.3);
}
.header .search .search-input {
  padding-left: 42px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  font-size: 16px;
  color: #999999;
  width: 323px;
  height: 100%;
  border-radius: 6px;
  vertical-align: bottom;
}
.header .search .search-icon {
  position: absolute;
  left: 14px;
  top: 14px;
  width: 17px;
}
.header .search .search-btn {
  display: inline-block;
  width: 110px;
  height: 100%;
  background-color: #c30000;
  border-radius: 0 6px 6px 0;
  line-height: 46px;
  text-align: center;
  font-family: Microsoft YaHei;
  font-weight: 400;
  font-size: 18px;
  color: #FFFFFF;
  letter-spacing: 6px;
  cursor: pointer;
  float: right;
}
.header .nav {
  width: 100%;
  height: 62px;
  background-color: #d61f25;
  border-radius: 12px 12px 0 0;
  margin-top: 100px;
  display: flex;
  justify-content: space-evenly;
}
.header .nav .nav-item {
  width: 205px;
  height: 100%;
  font-family: Microsoft YaHei;
  font-weight: normal;
  font-size: 20px;
  line-height: 62px;
  text-align: center;
}
.header .nav .nav-item a {
  color: #FFFFFF;
  text-decoration: none;
}
.header .nav .nav-item:first-child {
  border-radius: 12px 0 0 0;
}
.header .nav .nav-item:last-child {
  border-radius: 0 12px 0 0;
}
.header .nav .nav-item:hover {
  font-size: 22px;
  font-weight: bold;
  background-color: #c30000;
}
.header .nav .active {
  font-size: 22px;
  font-weight: bold;
  background-color: #c30000;
}
.close-btn {
  width: 56px;
  height: 26px;
  background: #DCDCDC;
  line-height: 26px;
  opacity: 0.33;
  border-radius: 13px;
  font-size: 16px;
  position: absolute;
  right: 200px;
  top: 30px;
  z-index: 100;
  text-align: center;
  cursor: pointer;
}