.ex {
    width: 1000px;
    margin: 0 auto;
}

/* .td {
     padding: 6px;
} */

.pic {
    border: none;
    padding: 0;
    margin: 0;
    width: 270px;
    height: 147px;
}

p {
    font-size: 13px;
    line-height: 19px;
    margin: 4px;
}

a {
    font-size: 14px;
    text-decoration: none;
    /*font-weight: bold*/
}

.resource a {
    font-weight: bold;
}

.dtfl li {
    float: left;
    width: 10%;
    margin-right: 25px;
    line-height: 50px;
    text-align: center;
}

.dtfl1 li {
    line-height: 40px;
}

.lstrow {
    height: 100%;
    background: #ecf5ff;
    padding: 35px 30px;
    overflow: hidden;
    position: relative;
    min-height: 200px;
}

.lstimg {
    height: 160px;
    float: left;
    width: 160px;
    margin: auto 0;
    position: absolute;
    margin: auto 0;
    left: 1.5vw;
    bottom: 0;
    top: 0;
    right: 0;
}

.cz_main_nav_box {
    height: 50px;
    width: 71%;
    margin-left: -15px;
    /*background: #0052b4;*/
    background: #337ab7;
    position: fixed;
    z-index: 99;
    top: 200px;
}

.cz_main_nav {
    width: 100%;
    height: 50px;
    margin: 0 auto;
    position: relative;
    /* background: url(hz_nav1.png); */
    /* padding: 0 70px; */
    color: #fff;
}

.cz_main_nav ul li {
    list-style: none;
    display: inline-block;
    line-height: 50px;
    vertical-align: middle;
    width: 130px;
    font-size: 17px;
    text-align: center;
    color: #fff;
}

.cz_main_nav ul li a {
    color: #fff;
}

.cz_main_nav ul li a:hover {
    /*color: #fff;*/
    font-weight: bold;
}
.wh1{
    height: 72px;
    width:71%;
    margin-left: -15px;
    background: #f2f2f2;
    /*background: #fffff;*/
    position: fixed;
    z-index: 99;
    top: 165px;
}
.wh2{
    height: 55px;
    width: 71%;
    margin-left: -15px;
    background: white;
    /*background: #fffff;*/
    position: fixed;
    z-index: 99;
    top: 165px;
}