/*
@Author:  ggd  
@Date:    2020-10-10
 */
body{
	background: #f8f8f8;
}
.ihead{
	height: 45px;
	background: #2676e3;
	width: 100%;
}
.ihead_box{
	width: 1200px;
	margin: 0 auto;
}

.ihead_box>a{
	display: inline-block;
	color: #c8dfff;
	font-size: 16px;
	line-height: 45px;
	margin-right: 36px;
	font-weight: bold;
}
.ihead_box>a:hover{
	color: #fff;
}
.ihead_box .active{
	color: #fff;
	position: relative;
}

.ihead_box .active:after{
	content: "";
	display: inline-block;
	width: 50px;
	height: 3px;
	border-radius: 2px;
	background: #c6ddfc;
	position: absolute;
	top: 42px;
	left: 81px;
}
.ihead_box ul{
	float: right;
}
.ihead_box ul li{
	float: right;
	min-width: 66px;
	padding: 0 15px;
	height: 26px;
	border-radius: 13px;
	background: #fff;
    line-height: 26px;
    padding: 0;
    margin-top: 9.5px;
    text-align: center;
}
.ihead_box ul li>a{
	margin: 0!important;
	font-size: 14px;
	color: #2676e3;
}

.iban{
	width: 100%;
	height: 222px;
	background: url(../images/index/bg.jpg) no-repeat center center;
}
/**********************/
.footer{
	width: 100%;
	/*height: 230px!important;*/
	background: #202f43;
}
.footer_link{
	width: 1200px;
	margin: 0 auto;
	height: 136px;
	border-bottom: 1px solid #2e435e;
}
.link_icon{
	
}

.link_icon img{
	margin: 30px 0 0 10px;
	float: left;
}
.link_icon span{
	float: left;
	display: inline-block;
	color: #fff;
	font-size: 20px;
	line-height: 31px;
	margin: 30px 0 0 20px;
}

.footer_link ul li{
	float: left;
	width: 225px;
	box-sizing: border-box;
	height: 15px;
	padding-left: 30px;
	border-right: 2px solid #a4acb7;
	margin-top: 10px;

}
.footer_link ul li a{
	color: #a4acb7;
	line-height: 15px;
}
.footer_link ul li:nth-child(5n-1){
	width: 275px;
}
.footer_link ul li:nth-child(5n-4){
	padding-left: 56px;
}

.footer_link ul li:nth-child(5n){
	border-right: 0;
}
.footer_link ul li  a{
	color: #fff;
}.footer_link ul li:hover a{
	color: #2576e2;
}
.footer_box{
	width: 1200px;
	margin: 0 auto;
}
.footer_box_l{
	float: left;
	height: 93px;
}
.footer_box_l img{
	margin-top: 27px;
	float: left;
}
.footer_box_l span{
	display: inline-block;
	float: left;
	line-height: 93px;
	font-size: 14px;
	color: #fff;
	margin-left: 20px;
}
.footer_box_l span a{
	color:#fff; 
}
.footer_box_l span a:hover{
	color:#2576e2; 
}
.footer_box_r{
	float: right;
}
.footer_box_r span{
	display: inline-block;
	font-size: 12px;
	color: #fff;
	float: left;
}
.footer_box_r span:nth-child(1){
	box-sizing: border-box;
	padding-top: 32px;
	height: 93px;
	width: 240px;
}
.footer_box_r span:nth-child(2){
	box-sizing: border-box;
	padding-top: 32px;
	height: 93px;
	width: 185px;
	background: url(../images/index/qq.png) no-repeat 98px center;
}
.footer_box_r span:nth-child(3){
	line-height: 93px;
	width: 185px;
	background: url(../images/index/wechat.png) no-repeat 78px center;
}
.footer_box_r span.weixin{
	position: relative;
}
.footer_box_r ins.hidewx {
    position: absolute;
    top: -70px;
    right: 55px;
    display: none;
}
.footer_box_r span.weixin:hover ins.hidewx{
	display: block;
}
/*******************************************************************************/


.sub{
	width: 1200px;
	margin: 0 auto;
}

.sub_l{
	border-width: 1px;
  	border-color: rgb(229, 229, 229);
  	border-style: solid;
  	border-radius: 4px;
  	background-color: rgb(255, 255, 255);
  	box-shadow: 1px 1.732px 10px 0px rgba(19, 18, 20, 0.15);
  	width: 910px;
  	height: 174px;
  	box-sizing: border-box;
}

.tit{
	margin: 0 20px;
	line-height: 44px;
	font-size: 18px;
	font-weight: bold;
	border-bottom: 1px solid #6ea2e7;
	padding-top: 2px;
	color: #444;
}
.tit>a{
	float: right;
	font-size: 12px;
	color: #202d3f;
	font-weight: normal;
}
.tit>a:hover{
	color: #2576e2;
}
.sub_li{
	height: 36px;
	margin: 2px 20px;
	display: flex;
}

.sub_li>span{
	display: inline-block;
	height: 16px;
	line-height: 16px;
	margin-top: 13px;
	padding: 0 18px;
	border-right: 1px solid #6ea2e7;
	font-size: 15px;
	box-sizing: border-box;
	font-weight: bold;
}
.sub_li>ul{
	width: 750px;
	height: 36px;
	margin: 0 20px;
	box-sizing: border-box;
	border-bottom: 1px dotted #ccc;
}

.sub_li>ul>li{
	float: left;
	line-height: 36px;
	font-size: 15px;
	margin-right: 32px;
}
.sub_li>ul>li:hover a{
	color: #2576e2;
}
.marT10{
	margin-top: 10px!important;
}

.sub_r{
	width: 280px;
}
.sub_r>a{
	display: inline-block;
	height: 55px;
	line-height: 55px;
	width: 280px;
	box-sizing: border-box;
	border-width: 1px;
  	border-color: rgb(229, 229, 229);
  	border-style: solid;
  	border-radius: 4px;
  	background-color: rgb(255, 255, 255);
  	box-shadow: 0px 0px 8px 0px rgba(19, 18, 20, 0.1);
  	margin-bottom: 5px;
  	padding-left: 35px;
  	font-size: 16px;
  	color: #2c3746;
  	position: relative;
}
.sub_r>a:last-child{
	margin-bottom: 0;
	background: url(../images/index/i2.png) no-repeat right bottom;
}
.sub_r>a:nth-child(2){
	background: url(../images/index/i1.png) no-repeat right bottom;
}
.sub_r>a:nth-child(1){
	background: url(../images/index/i3.png) no-repeat right bottom;
}
.sub_r>a:before{
	width: 6px;
	height: 6px;
	display: inline-block;
	content: "";
	background: #9dc0ee;
	border-radius: 3px;
	position: absolute;
	left: 19px;
	top: 27px;
}
.sub_r>a:hover{
	color: #2576e2;
}
/*******************检索样式****************************/

.sea{
	width: 850px;
	padding-top: 0px;
	margin: 0 auto;
	position: relative;

}
.sea .mod-search-dbs-s1 {
	border: 0;
	width: 750px;
	background: #f8f8f8;
}

.sea .mod-search-dbs-s1 .secnav a{
	padding: 4px 8px;
	margin-right: 4px;
}


.sea .mod-search-dbs-s1 .current {
	background: #2576e2;
	color: #fff;
	border: 0;
}
.sea .mod-search-dbs-s1 .secx .pholder{
	height: 40px;
	line-height: 40px;
}

.sea .mod-search-dbs-s1 .secx{
	height: 40px;
	border-radius: 4px;
	border: 1px solid #2576e2;
	padding-right: 65px;
	background: #fff;
}
.sea .mod-search-dbs-s1 .secx .inputtext{
	height: 40px;
}
.sea .mod-search-dbs-s1 .secbtn{
	right: 8px;
	background: #fff url(../images/bg-btn-search.png) center center no-repeat;
	height: 40px;
}
.sea .search_g{
	position: absolute;
    right: 5px;
    top: 40px;

}

.sea .search_g a{
	display: block;
	color: #666;
	font-size: 13px;
	margin-bottom: 2px;
}



/**********************/
.teaching{
	width: 1200px;
	margin: 10px auto;
	border-width: 1px;
  	border-color: rgb(229, 229, 229);
  	border-style: solid;
  	border-radius: 4px;
  	background-color: rgb(255, 255, 255);
  	box-shadow: 1px 1.732px 10px 0px rgba(19, 18, 20, 0.15);
  	height: 180px;
  	box-sizing: border-box;
}
.teaching_box{
	padding: 0 20px;
}
.teaching_box>a{
	display: inline-block;
	width: 215px;
	margin-right: 16px;
	margin-top: 10px;
}
.teaching_box>a:last-child{
	margin-right: 0;
}

.croom{
	width: 1200px;
	margin: 10px auto 20px auto;
	border-width: 1px;
  	border-color: rgb(229, 229, 229);
  	border-style: solid;
  	border-radius: 4px;
  	background-color: rgb(255, 255, 255);
  	box-shadow: 1px 1.732px 10px 0px rgba(19, 18, 20, 0.15);
  	height: 310px;
  	box-sizing: border-box;
}
.croom_box{
	padding: 0 20px;
}
.croom_box>a{
	display: inline-block;
	width: 215px;
	margin-right: 16px;
	margin-top: 20px;
}

.croom_box>a:last-child{
	margin-right: 0;
}
.croom_box>a img{
	width: 215px;
	height: 138px;
}
.croom_p1{
	overflow: hidden;
    text-overflow:ellipsis;
    white-space: nowrap;
    line-height: 52px;
    font-size: 15px;
    color: #202d3f;
}
.croom_p2{
	color: #788fa4;
	font-size: 13px;
	overflow: hidden;
    text-overflow:ellipsis;
    white-space: nowrap;
}
.croom_p2>span{
	display: inline-block;
	margin-right: 5px;
}

.croom_box>a:hover .croom_p1{
	color: #2576e2;
}


.journal{
	width: 100%;
	height: 390px;
	background: url(../images/index/qk_bg.jpg) no-repeat center center;
}
.journal_box{
	width: 1200px;
	margin: 0 auto;
	padding-top: 10px;
}

.journal_tab{
	height: 36px;
	background: rgba(171,206,253,0.2);
	margin: 20px;
	padding: 0 7px;
}
.journal_tab>li{
	float: left;
	font-size: 15px;
	font-weight: bold;
	color: #202d3f;
	cursor: pointer;
	padding: 0 3px;
	margin-right: 35px;
	line-height: 34px;
}
.journal_tab>li:hover{
	color: #2676e3;
}
.journal_tab .active{
	border-bottom: 2px solid #2676e3;
	color: #2676e3;
}

.journal_con{
	display: none;
	height: 210px;
	width: 1160px;
	margin: 0 20px;
}
.show{
	display: block!important;
}

.journal_con .mod-imglist-wrap{
	width: 1160px!important;
}

.journal_con .mod-imglist-inner .item{
	margin-right: 17px;
}

.journal_con .mod-imglist-inner .item:last-child{
	margin-right: 0px;
}

.journal_con .mod-imglist-inner .imglist-tit{
	display: none;
}


/******************************* 高中数学 ******************************************/

.itop{
	background-color: rgb(255, 255, 255);
  	box-shadow: 0px 0px 8px 0px rgba(0, 0, 0, 0.2);
  	height: 90px;
  	width: 100%;
}
.itop_box{
	width: 1200px;
	margin: 0 auto;
}

.itop_box>p{
	line-height: 90px;
	font-size: 30px;
}
.itop_box>p>span{
	color: #2676e3;
}
.itop_box>p>a{
	float: right;
	font-size: 14px;
	color: #666;
	display: inline-block;
	padding-left: 15px;
	background: url(../images/index/icon_back.png) no-repeat left center;
}
.itop_box>p>a:hover{
	color: #2676e3;
	background: url(../images/index/icon_back_h.png) no-repeat left center;
}

.er_sea{
	width: 850px;
	padding-top: 15px;
	margin: 0 auto;
	position: relative;

}
.er_sea .mod-search-dbs-s1 {
	border: 0;
	width: 750px;
	background: #f8f8f8;
	min-height: 54px;
}
.er_sea .secnav{
	display: none;
}
.er_sea .mod-search-dbs-s1 .secx .pholder{
	height: 40px;
	line-height: 40px;
}

.er_sea .mod-search-dbs-s1 .secx{
	height: 40px;
	border-radius: 4px;
	border: 1px solid #2576e2;
	padding-right: 65px;
	background: #fff;
}
.er_sea .mod-search-dbs-s1 .secx .inputtext{
	height: 40px;
}
.er_sea .mod-search-dbs-s1 .secbtn{
	right: 8px;
	background: #fff url(../images/bg-btn-search.png) center center no-repeat;
	height: 40px;
}
.er_sea .search_g{
	position: absolute;
    right: 5px;
    top: 38px;
}

.er_sea .search_g a{
	display: block;
	color: #666;
	font-size: 13px;
	margin-bottom: 2px;
}

.er_con{
	width: 1200px;
	margin: 0 auto;
}
.er_con_l{
	border-width: 1px;
  	border-color: rgb(229, 229, 229);
  	border-style: solid;
  	border-radius: 4px;
  	background-color: rgb(255, 255, 255);
  	width: 180px;
  	height: 500px;
  	box-sizing: border-box;
  	margin-bottom: 32px;
}
.er_con_l>ul{
	padding: 15px;
}

.er_con_l>ul>li{
	border-radius: 4px;
	width: 150px;
  	height: 36px;
  	line-height: 36px;
  	box-sizing: border-box;
  	padding-left: 18px;
  	font-size: 16px;
  	margin-bottom: 12px;
  	cursor: pointer;
}

.er_con_l>ul .active{
	background: #2576e2;
	color: #fff!important;
}
.er_con_l>ul>li:hover{
	color: #2576e2;
}
.er_con_r{
	border-width: 1px;
	border-color: rgb(229, 229, 229);
	border-style: solid;
	border-radius: 4px;
	background-color: rgb(255, 255, 255);
	width: 1000px;
	box-sizing: border-box;
	padding: 10px 30px;
}
.er_con_r .li{
	display: none;
}