.fontstyle1152131{ font-size: 12px; font-family: 微软雅黑; vertical-align: 5px; color: #ffffff ;}

.inner-s4 ul{
    display: flex;
    flex-wrap: wrap;}
.inner-s4 li{
    width: 49%;
    margin-left: 2%;
    margin-top: 35px;}
 
.inner-s4 li:nth-child(2n+1){
    margin-left: 0;}
.inner-s4 li a{
    display: block;}
.inner-s4 li .pic{
    padding-top: 290px;
    position: relative;
    overflow: hidden;}
.inner-s4 li h3{
    font-size: 16px;
    line-height: 28px;
    color: #1B1B1B;
    font-weight: 700;
    text-align: center;
    transition: .5s;}
.inner-s4 li .txt{
    padding: 12px 2px 12px;
    border-bottom: 2px solid #2f5db4;
    transition: .5s;}
.inner-s4 li:hover .txt{
    background: #2f5db4;
    border-color: #2f5db4;}
.inner-s4 li:hover h3{
    color: #fff;}

.pic .a {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-position: 50%;
    background-repeat: no-repeat;
    background-size: cover;
    transition: all 0.3s ease-in;}