.c1 {
    margin-top: 30px;
    margin-bottom: 2px;
}

.c1 .list2 li {
    float: left;
    position: relative;
    margin-right: 31px;
    width: 379px;
    margin-bottom: 30px;
    width: 379px;
    height: 159px;
    overflow: hidden;
}

.c1 .list2 li:nth-child(3n) {
    margin-right: 0;
}

.c1 .list2 li .img {
    position: absolute;
    text-align: center;
    top: 60px;
    width: 100%;
    z-index: 2;
    transition-duration: .3s;
}

.c1 .list2 li .img img{
    opacity: 0;
}


.c1 .list2 li:hover .img img{
       opacity:1;
}

.c1 .list2 li .img1 img {
    width: 379px;
    height: 159px;
}

.c1 .list2 li .zi {
    background: rgba(52, 52, 75, 0.7);
    color: #fff;
    font-size: 16px;
    line-height: 24px;
    padding-top: 84px;
    width: 100%;
    height: 100%;
    position: absolute;
    left: -100%;
    transition-duration: .3s;
    top: 0;
    text-align: center;
}

.c1 .list2 li .zi h3 {
    font-size: 16px;
    font-weight: 500;
}

.c1 .list2 li:hover .img {
    top: 33px;
}

.c1 .list2 li:hover .zi {
    left: 0;
}

.tong1 {
    width: 1920px;
    left: 50%;
    margin-left: -960px;
    position: relative;
}

.c2 {
    background: url(../images/c2.png) no-repeat 50% 0;
    height: 284px;
    padding-top: 46px;
}

.c2 .list2 li {
    text-align: center;
    float: left;
    margin-right: 153px;
    color: #fff;
    border: 1px solid #fff;
    width: 185px;
    height: 185px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    align-items: center;
    font-weight: 600;
}

.c2 .list2 li h3 {
    font-size: 48px;
}

.c2 .list2 li img {
    display: block;
    margin: 3px auto 0;
}

.c2 .list2 li dd {
    font-size: 24px;
    margin-top: 16px;
}

.c2 .list2 li:last-child {
    margin-right: 0;
}