.nav{width:100%;min-width:1000px;height:43px;background:#1756ab;}
.nav .nav_mid{width:1200px;height:43px;margin:0 auto;}
.nav .nav_mid .navCategoryMenu{width:183px;float:left;position:relative;z-index:200;}
.nav .nav_mid .navCategoryMenu h2{width:183px;height:43px;background:#0090eb;}
.nav .nav_mid .navCategoryMenu h2 p{float:left;height:43px;line-height:43px;color:#fff;font-size:16px;color:#fff;font-weight:normal;    margin: 0 20px;display:inline;}
.nav .nav_mid .navCategoryMenu h2 i{width:17px;height:17px;background:url(../new_index_images/menu_arrow.png) no-repeat left 0px;float:right;margin-top:13px;margin-right:20px;}
.nav .nav_mid .navCategoryMenu ul.categoryBox{width:183px;height:0px;background:url(../new_index_images/black_tm.png) repeat left top;position:absolute;top:43px;left:0px;display:block;overflow:hidden;}
.nav .nav_mid .navCategoryMenu ul.categoryBox li{height:44px;width:183px;border-bottom:1px solid #4f4c41;float:left;}
.nav .nav_mid .navCategoryMenu ul.categoryBox li a{float:left;height:44px;line-height:44px;color:#fff;margin-left:20px;}
.nav .nav_mid .navCategoryMenu ul.categoryBox li i{float:right;width:5px;height:8px;background:url(../new_index_images/menu_arrow.png) no-repeat left -43px;margin-top:20px;margin-right:25px;}
.nav .nav_mid .navCategoryMenu ul.categoryBox li.on{background:#fff;}
.nav .nav_mid .navCategoryMenu ul.categoryBox li.on a{color:#161616;}
.nav .nav_mid .navCategoryMenu ul.categoryBox li.on i{background:url(../new_index_images/menu_arrow.png) no-repeat left -72px;}
.nav .nav_mid .navCategoryMenu .menuBox{width:391px;height:450px;background:url(../new_index_images/white_tm.png) repeat left top;overflow:hidden;position:absolute;left:183px;top:43px;padding:0 20px;}
.nav .nav_mid .navCategoryMenu .menuBox .depar_item{width:391px;border-bottom:1px solid #e3e3e3;overflow:hidden;}
.nav .nav_mid .navCategoryMenu .menuBox .depar_item .left{float:left;display:inline;margin-top:25px;padding-bottom:25px;}
.nav .nav_mid .navCategoryMenu .menuBox .depar_item .left p{float:left;width:98px;text-align:right;overflow:hidden;margin-top:4px;}
.nav .nav_mid .navCategoryMenu .menuBox .depar_item .left i{float:left;width:7px;height:9px;background:url(../new_index_images/menu_arrow.png) no-repeat left -104px;margin-top:10px;margin-left:10px;}
.nav .nav_mid .navCategoryMenu .menuBox .depar_item .right{float:left;width:276px;overflow:hidden;display:inline;margin-top:25px;padding-bottom:25px;}
.nav .nav_mid .navCategoryMenu .menuBox .depar_item .right .ydb_expert2 a{display:inline-block;float:left;color:#333;margin-top:5px;margin-left:21px;}
.nav .nav_mid .navCategoryMenu .menuBox .depar_item .right .ydb_expert2 i{float:left;display:inline-block;width:7px;height:9px;background:url(../new_index_images/menu_arrow.png) no-repeat left -104px;margin-top:10px;margin-left:10px;}
.nav .nav_mid .navCategoryMenu .menuBox .depar_item .right ul li{float:left;height:16px;border-left:1px solid #e4e4e4;padding-left:10px;margin-top:7px;margin-left:10px;display:inline;white-space:nowrap;}
.nav .nav_mid .navCategoryMenu .menuBox .depar_item .right ul li a{font-size:12px;height:16px;line-height:16px;float:left;color:#666;}
.nav .nav_mid .navCategoryMenu .menuBox .depar_item .right ul li a:hover{background:#f06600;color:#fff;}
.nav .nav_mid ul.navList li.m{float:left;height:43px;display:inline;line-height:43px;position:relative;z-index:40;}
.nav .nav_mid ul.navList li.m a.father{padding:0 18px;color:#fff;font-size:16px;}
.nav .nav_mid ul.navList li.m ul{width:100%;overflow:hidden;position:absolute;left:0px;top:43px;z-index:40;background:#fff;display:none;}
.nav .nav_mid ul.navList li.m ul li{width:100%;height:33px;line-height:33px;text-align:center;overflow:hidden;}
.nav .nav_mid ul.navList li.m ul li a{color:#535353;font-size:12px;}


.nav .nav_mid .navDepartmentMenu {float: left;height: 43px;display: inline;line-height: 43px;position: relative;z-index: 40;}
.nav .nav_mid .navDepartmentMenu a {padding: 0 18px;color: #fff;font-size: 16px;}
.nav .nav_mid .navDepartmentMenu ul.departmentBox{width:207px;height:0px;background:url(../new_index_images/black_tm.png) repeat left top;position:absolute;top:43px;left:0px;display:block;overflow:hidden;}
.nav .nav_mid .navDepartmentMenu ul.departmentBox li{height:44px;width:207px;border-bottom:1px solid #4f4c41;float:left;}
.nav .nav_mid .navDepartmentMenu ul.departmentBox li a{float:left;height:44px;line-height:44px;color:#fff;}
.nav .nav_mid .navDepartmentMenu ul.departmentBox li i{float:right;width:5px;height:8px;background:url(../new_index_images/menu_arrow.png) no-repeat left -43px;margin-top:20px;margin-right:25px;}
.nav .nav_mid .navDepartmentMenu ul.departmentBox li.on{background:#fff;}
.nav .nav_mid .navDepartmentMenu ul.departmentBox li.on a{color:#161616;}
.nav .nav_mid .navDepartmentMenu ul.departmentBox li.on i{background:url(../new_index_images/menu_arrow.png) no-repeat left -72px;}
.nav .nav_mid .navDepartmentMenu .deptBox{width:200px;height:540px;background:url(../new_index_images/white_tm.png) repeat left top;overflow:hidden;position:absolute;left:207px;top:43px;padding:0 20px;}
.nav .nav_mid .navDepartmentMenu .deptBox .depar_item {width: calc(100%);border-bottom:1px solid #e3e3e3;overflow:hidden;color: #333 !important;display: flex;}
.nav .nav_mid .navDepartmentMenu .deptBox .depar_item a {color: #333;font-size: 14px;line-height: 43px;}