.product_center .r ul li {
    margin: 0 0 .75rem 0;
    width: 30%;
}

.product_center .r ul {
    flex-wrap: wrap;
}

.product_center .r ul li a .p_box {
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #B5B5B5;
    height: 240px;
}

.product_center .r ul li a img {
    display: block;
    max-width: 100%;
    max-height: 100%;
}

.product_center .r ul li a h4 {
    margin: .1875rem 0;
    text-align: center;
    line-height: .45rem;
    height: 70px;
}

.product_center .r ul li a .line {
    display: flex;
    justify-content: space-between;
    padding: 5px 20px;
    box-sizing: border-box;
    width: 50%;
    margin: 0 auto;
    color: #fff;
    background-color: #B5B5B5;
    border-radius: 10px;
    white-space: nowrap;
}

.product_center .r ul li a:hover .line {
    background-color: #0059BA;
    transition: all 0.6s;
}

.product_center .r ul li a:hover .p_box {
    border: 1px solid #0059BA;
    transition: all 0.6s;
}

.dlchange_box dd a {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 5px;
    width: 40px;
    height: 40px;
    color: #B5B5B5 !important;
    border: 1px solid #B5B5B5;
}

.dlchange_box dd a:hover {
    color: #fff !important;
    background-color: #0059BA;
    transition: all 0.6s;
}

.dlchange_box dd .dlchange_act {
    color: #fff !important;
    background-color: #0059BA;
}

@media screen and (max-width: 1680px) {}

@media screen and (max-width: 1600px) {}

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

@media screen and (max-width: 1366px) {}

@media screen and (max-width: 1280px) {}

@media screen and (max-width: 1024px) {
    .product_center .r ul li a .line {
        width: auto;
    }
}

@media screen and (max-width: 980px) {
    .product_center .r ul li {
        width: 49%;
    }
    .product_center .r ul li a h4 {
        line-height: 1.5;
    }
    .product_center .r ul li a .line {
        width: 100%;
    }
}

@media screen and (max-width: 768px) {}

@media screen and (max-width: 640px) {}

@media screen and (max-width: 375px) {}