.product {
    position: relative;
    display: flex;
}

.prolf {
    flex: 0 0 240px;
    padding: 0 30px;
    /*border-right: 1px solid */
    box-shadow: inset -1px 0 0 0 rgba(15, 25, 70, 0.10);
    padding-top: 2.08vw;
}

.allpro {
    opacity: 0.6;
    font-size: 14px;
    color: #1F2943;
    letter-spacing: 0;
    line-height: 22px;
    font-weight: 400;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(15, 25, 70, 0.10);
    margin-bottom: 1.3vw;
}

.product .pronav {
    position: relative;
}

.product .pronav:before {
    content: '';
    left: 0;
    top: 0;
    width: 1px;
    height: 100%;
    position: absolute;
    background: #E7E8EC;
}

.product .pronav-item {
    padding-left: 12px;
    font-size: 14px;
    letter-spacing: 0;
    line-height: 20px;
    font-size: 14px;
    color: #1F2943;
    letter-spacing: 0;
    font-weight: 200;
    position: relative;
    margin-bottom: 20px;
}
.product .pronav-item b{
    font-weight: 200;
}
.product .pronav-item.active {
    color: #1368B7;
    font-weight: 600;
}
.product .pronav-item.active b{
    font-weight: 600;
}

.product .pronav-item:before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 1px;
    height: 100%;
    background: #E7E8EC;
}

.product .pronav-item.active:after {
    background-color: #1368B7;
    
}

.product .pronav-item.active:before {
    background-color: #1368B7;
    ;
}

.product .pronav-item:after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: #D8D8D8;
    border-radius: 50%;
}

.prolf .leftnav {
    top: 2.08vw;
    top: 70px;
    position: sticky;
}

.product .prorg {
    padding: 2.08vw 30px 2.24vw;
    flex: 1;
}

.product .pro {
    padding-bottom: 20px;

}

.product .classify-name {
    color: #001A33;
    letter-spacing: 0;
    line-height: 32px;
    font-weight: 600;
    margin-bottom: 20px;
}

.product .prolist {
    display: flex;
    flex-wrap: wrap;
}

.product .pro-item {

    background: #FFFFFF;
    border: 1px solid #E7E8EC;
    box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.06);
    flex: 0 0 24.074%;
    margin-right: calc(3.704% / 3);
    margin-bottom: 20px;
    transition: all .5s;
}

.product .pro-item a {
    display: block;
    padding: 20px;
    width: 100%;
}

.product .pro-item:hover {
    border: 1px solid #1368B7;
    box-shadow: 0 2px 4px 0 rgba(0, 57, 110, 0.30), 0 4px 16px 0 rgba(19, 104, 183, 0.27);
}

.product .pro-item:nth-child(4n) {
    margin-right: 0;
}


.product .pro-tit {
    font-size: 16px;
    color: #001A33;
    letter-spacing: 0;
    font-weight: 500;
    line-height: 22px;
    margin-right: 20px;
}


.product .pro-top {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
}

.product .label-list {
    display: flex;
    flex-wrap: wrap;
}

.product .label-item {
    font-size: 12px;
    color: #1368B7;
    letter-spacing: 0;
    font-weight: 600;
    padding: 0 10px;
    line-height: 18px;
    border: 1px solid #146AB8;
    margin-right: 10px;
}

.product .pro-des {
    opacity: 0.6;
    font-size: 12px;
    color: #001A33;
    letter-spacing: 0;
    line-height: 20px;
    font-weight: 400;
    margin-top: 10px;
}

@media screen and (max-width:1440px) {
    .product .pro-item a {
        padding: 15px;
    }

    .product .label-item {
        margin-right: 5px;
        padding: 0 5px;
    }

    .product .pro-tit {
        margin-right: 10px;
    }
}

@media screen and (max-width:1200px) {
    .product .pro-item {
        flex: 0 0 32%;
    }

    .product .pro-item:nth-child(4n) {
        margin-right: 2%;
    }

    .product .pro-item:nth-child(3n) {
        margin-right: 0%;
    }
}

@media screen and (max-width:1024px) {
    .prolf {
        flex: 0 0 200px;
        padding: 0 20px;
    }

    .product .prorg {
        padding-left: 20px;
        padding-right: 20px;
    }
}

@media screen and (max-width:768px) {
    .prolf {
        display: none;
    }

    .product .prorg {
        padding-left: 20px;
        padding-right: 20px;
    }

    .product .pro-item {
        flex: 0 0 100%;
        margin-right: 0;
    }

    .product .pro-item {
        margin-bottom: 10px;
    }

    .product .classify-name {
        margin-bottom: 12px;
    }
}