.header {
  width: 100%;
  /*height: 90px;*/
  position: relative;
  overflow: hidden;
  z-index:3;
}

.header:after {
  content: '';
  display: block;
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: rgba(255, 255, 255, 0.14);
}

.header_left {
  float: left;
  height: 90px;
  overflow: hidden;
}

.header_left .logo {
  width: 246px;
  height: 71px;
  border-right: 1px solid rgba(255, 255, 255, 0.14);
  text-align: center;
  padding-top: 18px;
}

.header_left .logo p {
  font-size: 12px;
  color: rgba(254, 254, 254, 0.5);
  font-weight: normal;
  margin-top: 2px;
  letter-spacing: 2px;
}

.header_left .nav {
  padding-left: 56px;
  height: 90px;
  overflow: hidden;
}

.header_left .nav a {
  display: block;
  float: left;
  font-size: 16px;
  color: rgba(254, 254, 254, 0.5);
  margin-left: 56px;
  line-height: 87px;
  transition: 0.2s;
}

.header_left .nav a.on {
  font-size: 16px;
  color: #3380ea;
  font-weight: bold;
  border-bottom: 2px solid #3e83e2;
}

.header_right {
  height: 90px;
}

.header_right .login {
  display: block;
  height: 90px;
  line-height: 90px;
  position: relative;
  font-size: 14px;
  color: #ffffff;
  margin-right: 31px;
  transition: 0.2s;
}

.header_right .login:hover {
  color: #3380ea;
}

.header_right .login i {
  display: block;
  width: 20px;
  height: 20px;
  background: url("../images/common/login.png") no-repeat center;
  position: absolute;
  top: 50%;
  left: -25px;
  margin-top: -10px;
  transition: 0.2s;
}

.header_right .login:hover i {
  display: block;
  width: 20px;
  height: 20px;
  background: url("../images/common/login_h.png") no-repeat center;
  position: absolute;
  top: 50%;
  left: -25px;
  margin-top: -10px;
}

.header_right .login:after {
  content: '';
  display: block;
  width: 1px;
  height: 14px;
  background: rgba(255, 255, 255, 0.26);
  position: absolute;
  top: 50%;
  right: -17px;
  margin-top: -7px;
}

.header_right .register {
  display: block;
  height: 90px;
  line-height: 90px;
  font-size: 14px;
  color: #ffffff;
  font-size: 14px;
  color: #ffffff;
  margin-right: 38px;
  transition: 0.2s;
}

.header_right .register:hover {
  color: #3380ea;
}

.crumbs {
  width: 1200px;
  height: 50px;
  margin: auto;
}

.crumbs .a1 {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.4);
  line-height: 50px;
  position: relative;
  margin-left: 18px;
}

.crumbs .a1:after {
  content: '';
  display: block;
  width: 12px;
  height: 7px;
  background: url("../images/common/point_1.png") no-repeat center;
  position: absolute;
  top: 50%;
  left: -18px;
  margin-top: -3.5px;
}

.crumbs .a2 {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.4);
  line-height: 50px;
  position: relative;
  margin: 0 17px 0 7px;
}

.crumbs .a2:after {
  content: '';
  display: block;
  position: absolute;
  top: 50%;
  right: -17px;
  width: 8px;
  height: 5px;
  margin-top: -2.5px;
  background: url("../images/common/point_2.png") no-repeat center;
}

.crumbs .a2:last-child:after {
  content: none;
}