.head_con {
  width: 80%;
  display: flex;
  justify-content: space-between;
}
.head_con .logo {
  position: static;
  background-position-y: 12px;
}
.sub-nav {
  width: 124px;
  background: #0f3cd1;
  height: auto;
  left: auto;
}
.sub-nav div {
  text-align: center;
}
.nav-btn {
  width: 64px;
  height: 208px;
  font-size: 16px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #999999;
  line-height: 48px;
}
.nav-btn:hover {
  color: #fff;
}
.menu_list .menu_item .txt,
.submenu_show .menu_list .menu_item .txt {
  padding: 0 30px;
}

@keyframes a_menu_item_show {
  0% {
    -webkit-transform: translate(0px, -30px);
    opacity: 0;
  }
  100% {
    -webkit-transform: translate(0px, 0px);
    opacity: 0.9;
  }
}
@media screen and (min-width: 930px) and (max-width: 1409px) {
  .menu_list .menu_item {
    margin-left: 0;
  }
  .submenu_show .menu_list .menu_item .txt {
    padding: 0 10px;
  }
  .menu_list .menu_item .txt {
    padding: 0 10px;
  }
  .sub-nav {
    width: auto;
  }
  .sub-nav .nav-btn {
    font-size: 13px;
  }
}
@media screen and (min-width: 769px) and (max-width: 930px) {
  .menu_list .menu_item {
    margin-left: 0;
  }
  .menu_list .menu_item .txt,
  .submenu_show .menu_list .menu_item .txt {
    padding: 0 1px;
  }
  .sub-nav {
    transform: translateX(-29px);
  }
  @keyframes a_menu_item_show {
    0% {
      -webkit-transform: translate(-29px, -30px);
      opacity: 0;
    }
    100% {
      -webkit-transform: translate(-29px, 0px);
      opacity: 1;
    }
  }
  @keyframes a_menu_item_hide {
    0% {
      -webkit-transform: translate(-29px, 0px);
      opacity: 1;
    }
    100% {
      -webkit-transform: translate(-29px, -30px);
      opacity: 0;
    }
  }
}
@media screen and (max-width: 769px) {
  .head_con .logo {
    display: none;
  }
  .wrap_head {
    background-color: #fff;
  }
}