.case-div {
    display: flex;
    flex-wrap: wrap;
}

.case-div > a {
    width: calc((100% - 30px) / 2);
    margin-bottom: 45px;
    background: #f9f9f9 !important;
    padding: 58px 49px;
    display: block;
    position: relative;
}

.case-div > a:nth-child(2n-1) {
    margin-right: 30px;
}

.case-div > a > div {
    position: relative;
    width: 100%;
    margin-bottom: 35px;
}

.case-div > a > div div {
    width: 100%;
    overflow: hidden;
    position: relative;
}

.case-div > a > div div img {
    width: 100%;
    transition: .4s;
}

.case-div > a > div i {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 55px;
    height: 55px;
    text-align: center;
    line-height: 55px;
    color: #fff;
    background: #666666;
    font-size: 24px;
    transform: translateY(50%);
    transition: .4s;
}

.case-div > a > p:nth-child(2) {
    font-size: 20px;
    line-height: 1;
    color: #111111;
    margin-bottom: 25px;
}

.case-div > a > p:nth-child(3) {
    font-size: 14px;
    line-height: 23px;
    color: #666666;
    margin-bottom: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.case-div > a:hover img {
    transform: scale(1.1, 1.1);
}

.case-div > a:hover div i {
    background: #e40001;
}

.case-div > a:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    display: block;
    transition: .4s;
    background: #e40001;
}

.case-div > a:hover:after {
    width: 100%;
}

@media (max-width: 1440px) {
}

@media (max-width: 1260px) {
}

@media (max-width: 991px) {
    .case-div > a{
        padding: 25px;
    }
}

@media (max-width: 767px) {
    .case-div > a{
        padding: 15px;
        width: calc((100% - 15px) / 2);
        margin-bottom: 15px;
    }
    .case-div > a:nth-child(2n-1){
        margin-right: 15px;
    }
    .case-div > a > div{
        margin-bottom: 15px;
    }
    .case-div > a > div i{
        width: 35px;
        height: 35px;
        line-height: 35px;
        font-size: 18px;
    }
    .case-div > a > p:nth-child(2){
        font-size: 18px;
        margin-bottom: 15px;
    }
}

@media (max-width: 414px) {
    .case-div > a:nth-child(2n-1){
        margin-right: 0;
    }
    .case-div > a{
        width: 100%;
        padding: 20px;
    }
}