.header-content {
  width: 100%;
  background: #000000;
  height: 50px;
  position: fixed;
  left: 0;
  top: 0;
  z-index: 5000;
}
.placeholder-header {
  height: 50px;
  width: 100%;
}
.menu-list-top {
  width: 1400px;
  height: 100%;
  margin: 0 auto;
}
.menu-list-top .logo-view {
  height: 100%;
  display: inline-block;
}
.menu-list-top .logo-view a {
  height: 100%;
  display: inline-block;
  position: relative;
}
.menu-list-top .logo-view img {
  height: 100%;
  vertical-align: middle;
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
}
.nav-menu-list {
  height: 100%;
  width: auto;
  float: right;
}
.nav-menu-list > ul {
  height: 100%;
}
.nav-menu-list li {
  height: 100%;
  padding: 0 30px;
  display: inline-block;
}
.nav-menu-list li > a {
  color: #fff;
  line-height: 50px;
  position: relative;
  cursor: pointer;
}
.nav-menu-list li > a:hover {
  color: #848484;
}
.drop-menu-contenet {
  position: absolute;
  left: 0;
  width: 100vw;
  height: 0px;
  z-index: 1000 !important;
  overflow: hidden;
  background: #fff;
}
.drop-menu-contenet-pitch {
  transition: 0.3s;
  height: 70px;
}
.drop-menu-contenet-remove {
  transition: 0.3s;
  height: 0px;
}
.drop-menu-list {
  width: 100%;
  height: 70px;
  overflow-x: auto;
  margin: 0 auto;
  text-align: center;
}
.drop-menu-list a {
  height: 100%;
  line-height: 70px !important;
  text-align: center;
  display: inline-block;
  color: #333 !important;
  font-size: 16px !important;
  cursor: pointer !important;
}
.drop-menu-list a:hover {
  color: #848484 !important;
}