.page_about{
    background-color: #fff;
}

/* 中心概况 */
.page_about_top{
    background-color: #f4f4f4;
    padding: 30px 0;
}
.page_about_top > div{
    position: relative;
}
.page_about_top > div > .images{
    position: relative;
    width: 770px;
    height: 450px;
    border-radius: 3px;
    overflow: hidden;
}
.page_about_top > div > .images a{
    display: block;
    width: 100%;
    height: 100%;
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;
}
.page_about_top > div > .content{
    -ms-flex: 1; /* IE10 */
    flex: 1;
    margin-left: 30px;
    height: 450px;
    overflow: hidden;
}

.about_tab{}
.about_tab .tab_head{
    display: table;
    border-bottom: 1px solid #004caa;
    margin: auto;
    padding-top: 23px;
}
.about_tab .tab_head > div{
    display: table-cell;
}
.about_tab .tab_head > div > .item{
    display: block;
    letter-spacing: -1px;
    font-size: 20px;
    line-height: 24px;
    font-weight: bold;
    color: #004caa;
    cursor: pointer;
    height: 36px;
    border-bottom: 2px solid transparent;
}
.about_tab .tab_head > div:not(:first-child){
    padding-left: 20px;
}
.about_tab .tab_head > div > .item.active{
    border-color: #004caa;
}
.about_tab .tab_body > .item{
    display: none;
    width: 100%;
    height: 390px;
    overflow: hidden;
}
.about_tab .tab_body > .item.active{
    display: block;
}
.about_tab .tab_body > .item > .content{
    margin-top: 30px;
    width: 100%;
    height: 330px;
    overflow: hidden;
    font-size: 16px;
    line-height: 30px;
}
.about_tab .tab_body > .item > .more{
    text-align: right;
    font-size: 12px;
    height: 20px;
    line-height: 20px;
    margin-top: 10px;
}

/* 中心领导 */
.page_about_middle{
    padding: 30px 0 50px 0;
}
.page_about_middle .main{
    padding-top: 20px;
    position: relative;
}
.page_about_middle .main > .boss{
    width: 380px;
}
.page_about_middle .main > .doing{
    -ms-flex: 1; /* IE10 */
    flex: 1;
}
.page_about_middle .main > .doing > .head{
    border-bottom: 1px solid #004caa;
    position: relative;
    padding-bottom: 5px;
}
.page_about_middle .main > .doing > .head > .title{
    -ms-flex: 1; /* IE10 */
    flex: 1;
    font-size: 18px;
    font-weight: bold;
    color: #004caa;
    line-height: 20px;
}
.page_about_middle .main > .doing > .head > .title a{
    color: #004caa;
}
.page_about_middle .main > .doing > .head > .more{
    font-size: 12px;
    line-height: 1;
}
.page_about_middle .main > .doing > .list{
    position: relative;
    width: 790px;
    list-style: none;
    margin: 0;
    padding: 5px 0 0 0;
}
.page_about_middle .main > .doing > .list > li{
    width: 100%;
    overflow:hidden; text-overflow:ellipsis; white-space:nowrap;
    padding: 7px 0;
}


.page_about_middle .other{
    position: relative;
    padding-top: 50px;
}
.page_about_middle .other > div{
    -ms-flex: 1; /* IE10 */
    flex: 1;
}
.page_about_middle .other > div:not(:first-child){
    margin-left: 30px;
}
.page_about_middle .bi{
    display: block;
    width: 240px;
    margin: auto;
    text-align: center;
    transition: all 250ms ease;
}
.page_about_middle .bi:hover{
    transform: translateY(-6px);
}
.page_about_middle .bi > .photo{
    width: 168px;
    height: 214px;
    margin: auto;
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    border-radius: 3px;
}
.page_about_middle .bi > .name{
    height: 60px;
    line-height: 60px;
    font-size: 24px;
    font-weight: bold;
    color: #004caa;
}
.page_about_middle .bi > .desc{
    font-size: 12px;
    line-height: 2;
}

.page_about_middle .main > .boss{
    width: 310px;
}
.page_about_middle .main > .boss > .bi{
    width: 168px;
    margin-left: 109px;
}

    /* 主任信箱 */
.page_about_bottom > a{
    display: block;
    width: 100%;
    height: 132px;
    background: url(zxgk_xinxiang_bg.png) repeat-x center center;
}