.loop-card{
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    list-style: none;
}
.loop-card .post-card-item{
    width: 22%;
    margin: 20px 1.5%;
    border-radius: 10px 10px 0 0;
    overflow: hidden;
}
.post-case-thumb{
    position: relative;
    /*padding-bottom: 56.25%;*/
    padding-bottom: 66.66%;
}
.post-case-thumb img{
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.post-item-sitename{
    margin-top: 10px;
    text-align: center;
}
.post-item-sitename a{
    font-size: 18px;
    color: #000;
}
.post-item-showbtn{
    margin: 15px 0;
    text-align: center;
}
.post-item-showbtn a{
    display: inline-block;
    padding: 5px 12px;
    background-image: linear-gradient(90deg,#006eff,#13adff);
    -webkit-box-shadow: 0 5px 10px 0 rgba(16,110,253,.3);
    box-shadow: 0 5px 10px 0 rgba(16,110,253,.3);
    color: #fff!important;
    letter-spacing: 1px;
    font-size: 14px;
    transition: all .3s;
}
.post-item-showbtn a:hover{
    border-radius: 15px;
    transform: scale(1.1);
}

@media (max-width: 1024px){
    .loop-card .post-card-item{
        width: 30.33%;
    }
}
@media (max-width: 768px){
    .loop-card .post-card-item{
        width: 47%;
    }
}
@media (max-width: 468px){
    .loop-card .post-card-item{
        width: 100%;
        margin: 20px;
    }
}