.container{
  width:100%;
}
/* 头部 */
#header_box {
  width: 100%;
  position: fixed;
  /* margin-top: -64px; */
  top: 0px;
  height: 80px;
  background-color: #ffffff;
  z-index: 100;
}
#header {
  width: 1192px;
  display: flex;
  height: 80px;
  margin: 0 auto;
  justify-content: space-between;
}

.header_left {
  display: flex;
  align-items: center;
  cursor: pointer;
}
.header_left_title {
  margin-left: 10px;
  color: #000;
  font-family: DingTalk JinBuTi;
  font-weight: 400;
  font-style: Regular;
  font-size: 34px;
  line-height: 47.6px;
  letter-spacing: 0%;
}
.header_left_title a, .header_right_item a {
  color: #000;
}

.header_right {
  font-weight: bold;
  font-size: 14px;
  color: #ffffff;
  display: flex;
  align-items: center;
}

.header_right_item {
  position: relative;
  font-weight: 400;
  font-size: 14px;
  color: #000;
  margin-left: 40px;
  line-height: 64px;
}
.submenu{
  position: absolute;
    display: none;
    top: 43px;
    left: 0;
    padding: 10px 0;
    min-width: 100px;
    background: #FFFFFF;
    box-shadow: 0px 0px 9px 0px rgba(0, 0, 0, 0.11);
    border-radius: 2px;
    overflow: hidden;
    z-index: 7;
}
.submenu-item{
  display: block;
  line-height: 32px;
  margin: 0 10px;
  padding: 0 6px;
  color: #333;
  white-space: nowrap;
  box-sizing: content-box;
  text-align: center;
  font-weight: 300;
}
.header_right_item:hover .submenu{
  display: block;
}
.header_right_item a:hover,.submenu-item:hover {
  cursor: pointer;
  font-weight: bold;
  color: #674FFF;
}
.sticky_top {
  background-color: #ffffff !important;
}
.sticky_top .header_left_title {
  color: #39426e;
}

.sticky_top .header_right_item {
  color: #39426e;
}
.sticky_top .header_right_item:hover {
  color: #674FFF;
}

.bck-F {
  background-color: #FFFFFF !important;
  border-bottom: 1px solid #efefef;
}

.bck-F #menu>li:hover {
  background: #D4EFFF;
}

.header-download {
  height: 56px !important;
}