.weld-box{
    padding:0 0 90px;
}

.weld-item{
    padding-top: 40px;
}

.weld-itmul{
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-top: 30px;
}
.weld-itmul li{
    width: 23%;
    border: 1px solid #dcdcdc;
}

.weld-itmul li a{
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 8px 10px;
    overflow: hidden;
}
.weld-itmul li a img{
    width: 230px;
    height: 210px;
}
.weld-itmul li a p{
    font-size: 16px;
    margin-top: 30px;
}


@media only screen and (max-width:1440px) {
    .weld-box {
        padding: 0 0 80px;
    }

    .weld-item {
        padding-top: 30px;
    }
    .weld-itmul {
        margin-top: 20px;
    }

    .weld-itmul li a img {
        width: 200px;
        height: 180px;
    }
    .weld-itmul li a p {
        font-size: 14px;
        margin-top: 20px;
    }

}

@media only screen and (max-width:769px) {
    .weld-box {
        padding: 0 .1rem .8rem;
    }

    .weld-item {
        padding-top: .3rem;
    }
    .weld-itmul {
        margin-top: .2rem;
    }
    .weld-itmul li a {
        padding: .2rem .1rem;
    }
    .weld-itmul li a p {
        font-size: 12px;
        margin-top: .2rem;
    }

    .weld-itmul li {
        width: 49%;
        margin-bottom: .2rem;
    }
    .weld-itmul li a img {
        width: 2.3rem;
        height: 2.1rem;
    }

}