@charset "utf-8";
nav ul {
  list-style: none;
  padding-left: 0;
  margin-top: 0;
  margin-bottom: 0;
}

.nav {
  margin: 0 auto;
    font-size: 16px;
    font-family: "微软雅黑";
    color: #333333;

}
.nav a {
  display: block;
  padding: 0 0px;
  line-height: inherit;
  cursor: pointer;
}  
.nav_menu {
  line-height: 45px;
  text-transform: uppercase;
  z-index:9999;
  float:right;
  margin-top: 48px;
}
.nav_menu-item {
  display: inline-block;
  position: relative;
  	z-index:9999;
}
.nav_menu-item:hover {
  background-color: #dddddd;
}
.nav_menu-item:hover .nav_submenu {
  display: block;
}
.nav_submenu {
  text-transform: none;
  display: none;
  position: absolute;
  width: 160px;
  background-color: #e9e9e9;
}
.nav_submenu-item:hover {
  background: rgba(0, 0, 0, 0.1);
}