/*布局*/
#header {
  width: 100%;
  color: red;
  background: #f5f5f5;
  font-size: 14px;
  position: relative;
  z-index: 7777;
}

#header .case {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: nowrap;
}

#header .case .logo {
  width: 30%;
  display: flex;
  align-items: center;
  justify-content: center;
}

#header img {
  width: 100%;
}

#header .case .tar {
  width: 70%;
  display: flex;
  flex-wrap: nowrap;
  justify-content: space-around;
}

#header .tar > div {
  height: 100px;
  line-height: 100px;
}

#header .tar > div>a {
  font-size: 1.7rem;
}

/* #header .tar > div.actived {
  position: relative;
}

#header .tar > div.actived:after {
  position: absolute;
  display: block;
  content: "";
  width: 100%;
  height: 4px;
  background: #a80017;
  top: 0;
  left: 0;
} */

.news-nav {
  width: 100%;
  background: #a80017;
  height: 0;
  transform: scaleY(0);
  transition: all 0.2s;
  opacity: 0;
}

.news-nav-case {
  max-width: 1200px;
  height: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
}

.news-nav .ignore {
  width: 30%;
  height: 100%;
}

.news-nav .btns-nav {
  width: 70%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.news-nav .btns-nav > div {
  height: 100%;
  width: 20%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.news-nav a {
  color: #fff;
  font-size: 1.4rem;
}

.news-nav .tar > div.actived:after {
  display: block;
  content: "";
  width: 0;
  height: 0;
  border-width: 0 10px 10px;
  border-style: solid;
  border-color: transparent transparent #a80017;
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translate(-50%, 0);
  z-index: 999999;
}

.s_b {
  transition: all .2s;
  position: absolute;
  top: 100%;
  left: 0;
  background: #a80017;
  height: 40px;
  transform: translate3d(0, -50%, 0);
  -webkit-transform: translate3d(0, -50%, 0);
  display: none;
  text-align: center;
  line-height: 40px !important;
}

.s_b ul {
  display: inline-block;
  height: 40px;
  line-height: 40px !important;
}

.s_b ul li {
  display: inline;
  margin-right: 15px;
}

.s_b ul a {
  color: #fff;
  font-size: 14px;
}

.tar_a {
  position: relative;
}

.second_btn i{
  display: none;
  position: absolute;
  top: -40px;
  left: 50%;
  width: 100%;
  height: 4px;
  background: #a80017;
  transform: translate(-50%,0);
}
.actived i{
  display: block !important;
}
.second_btn:hover i{
  display: block !important;
}
.second_btn em {
  display: none;
  position: absolute;
  bottom: -23px;
  left: 50%;
  width: 0;
  height: 0;
  border-bottom: 10px solid #a80017;
  border-left: 7px solid transparent;
  border-right: 7px solid transparent;
  transform: translate(-50%,0);
}

.second_btn .tar_a:hover:after{
  display: block;
}
.nav_active{
    color: #222 !important;
}