.header {
  position: fixed;
  width: 100%;
  left: 0;
  top: 0;
  z-index: 2;
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
  background: rgba(0, 0, 0, 0.1);
  -webkit-box-shadow: 0 0 5px 0 rgba(0, 0, 0, 0.1);
          box-shadow: 0 0 5px 0 rgba(0, 0, 0, 0.1);
}
.header .header_flx {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  width: 1440px;
  margin: auto;
}
.header .logo_c {
  display: none;
}
.header .navge {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}
.header .navge > div {
  margin-right: 50px;
  position: relative;
}
.header .navge > div:last-child {
  margin-right: 0;
}
.header .nav1 {
  height: 80px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  position: relative;
}
.header .nav1 a {
  color: white;
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
}
.header .nav1 a:hover {
  color: red;
}
.header .nav2 {
  display: none;
  position: absolute;
  left: 50%;
  -webkit-transform: translateX(-50%);
      -ms-transform: translateX(-50%);
          transform: translateX(-50%);
  width: 160px;
  background: white;
  -webkit-box-shadow: 0 0 10px 0 rgba(0, 0, 0, 0.1);
          box-shadow: 0 0 10px 0 rgba(0, 0, 0, 0.1);
}
.header .nav2 a {
  color: #333;
  display: block;
  line-height: 40px;
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
  text-align: center;
}
.header .nav2 a:hover {
  background: rgba(0, 0, 0, 0.06);
  color: red;
}
.header .header_other {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  margin-left: 60px;
}
.header .header_r {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}
.header .header_search {
  padding: 5px;
  border-radius: 50%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  cursor: pointer;
  position: relative;
}
.header .header_search svg {
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
      -ms-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
}
.header .header_search svg path {
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
}
.header .header_search svg:last-child {
  opacity: 0;
}
.header .header_search:hover svg path {
  fill: red;
}
.header .header_search.header_search_act svg:first-child {
  opacity: 0;
}
.header .header_search.header_search_act svg:last-child {
  opacity: 1;
}
.header .header_search_drop {
  display: none;
  position: absolute;
  width: 100%;
  left: 0;
  padding: 100px 0;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(5px);
}
.header .header_search_drop svg {
  cursor: pointer;
}
.header .drop_flx {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  width: 600px;
  margin: auto;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  padding-bottom: 10px;
}
.header .drop_flx input {
  width: calc(100% - 40px);
  border: none;
  margin-right: 20px;
  background: none;
}

.header.header_active {
  background: white;
}
.header.header_active .logo_w {
  display: none;
}
.header.header_active .logo_c {
  display: block;
}
.header.header_active a {
  color: #333;
}
.header.header_active .header_search svg path {
  fill: #333;
}
.header.header_active .header_search:hover svg path {
  fill: red;
}

.phone_menu {
  display: none;
  width: 30px;
  height: 20px;
  position: relative;
  margin-left: 30px;
}
.phone_menu span {
  background: #333;
  height: 2px;
  display: block;
  -webkit-transition: 0.5s;
  transition: 0.5s;
  width: 100%;
}
.phone_menu span:first-child {
  -webkit-transition: 0.5s;
  transition: 0.5s;
  position: absolute;
  -webkit-transform: translateY(0px);
      -ms-transform: translateY(0px);
          transform: translateY(0px);
  top: 0;
}
.phone_menu span:last-child {
  -webkit-transition: 0.5s;
  transition: 0.5s;
  position: absolute;
  -webkit-transform: translateY(18px);
      -ms-transform: translateY(18px);
          transform: translateY(18px);
  top: 0;
}

.menu_act span:first-child {
  -webkit-transition: 0.5s;
  transition: 0.5s;
  -webkit-transform: translateY(10px) rotate(45deg);
      -ms-transform: translateY(10px) rotate(45deg);
          transform: translateY(10px) rotate(45deg);
}
.menu_act span:last-child {
  -webkit-transition: 0.5s;
  transition: 0.5s;
  -webkit-transform: translateY(10px) rotate(135deg);
      -ms-transform: translateY(10px) rotate(135deg);
          transform: translateY(10px) rotate(135deg);
}
.menu_act span:nth-child(2) {
  opacity: 0;
  -webkit-transition: 0.5s;
  transition: 0.5s;
}

.header_act {
  top: -80px;
}

@media screen and (max-width: 1600px) {
  .header .header_flx {
    width: 80%;
  }
  .header .header_search_drop {
    padding: 60px 0;
  }
}
@media screen and (max-width: 1200px) {
  .header .nav1 {
    height: 60px;
  }
  .header .header_flx {
    width: 90%;
  }
  .header .header_search_drop {
    padding: 40px 0;
  }
}
@media screen and (max-width: 768px) {
  .logo img {
    width: 100px;
  }
  .header .logo_w {
    display: none;
  }
  .header .logo_c {
    display: block;
  }
  .header .navge > div {
    margin-right: 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  }
  .header .navge {
    position: fixed;
    top: 61px;
    width: 100%;
    left: 0;
    height: calc(100% - 60px);
    background: white;
    display: none;
    padding: 10px 20px 0;
  }
  .phone_menu {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
  }
  .header .nav1 {
    height: 50px;
  }
  .xuan:after {
    content: "";
    position: absolute;
    right: 0px;
    top: 0px;
    bottom: 0px;
    margin: auto 0;
    display: block;
    width: 8px;
    height: 8px;
    background-color: transparent;
    border-right: 2px solid rgba(0, 0, 0, 0.2);
    border-top: 2px solid rgba(0, 0, 0, 0.2);
    -ms-transform: rotate(45deg);
    -webkit-transform: rotate(45deg);
    transform: rotate(45deg);
    -webkit-transition: all 0.5s;
    transition: all 0.5s;
  }
  .xuan_act:after {
    -ms-transform: rotate(135deg);
    -webkit-transform: rotate(135deg);
    transform: rotate(135deg);
  }
  .header .header_flx {
    height: 60px;
  }
  .header .nav1 a {
    color: #333;
  }
  .header {
    background: white;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  }
  .header_search svg path {
    fill: #333333;
  }
  .header .nav2 {
    position: relative;
    -webkit-box-shadow: none;
            box-shadow: none;
  }
  .header .drop_flx {
    width: 90%;
  }
  .header .header_search_drop {
    padding: 30px 0;
  }
}