.box-2019 {
    position: relative;
    max-height: 400px;
    overflow: hidden;
}

.box-2019 .pro-2019 {
    position: absolute;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    top: 0;
    left: 0;
    font-size: 0;
}

.box-2019 .playbox {
    display: flex;
}


.product-cont {
    padding: 40px 0 80px;
}

.product-cont h2 {
    font-size: 26px;
    font-weight: bold;
    line-height: 42px;

}

.product-item img {
    max-width: 650px;
    margin: 30px auto;
    display: inline-block;
}

.product-cont .platform-item {
    box-shadow: 2px 0 10px rgba(0, 0, 0, .2);
    border: 1px solid #dddddd;
    padding: 0 30px 30px 20px;
    background-color: #FFFFFF;
    position: relative;
}

.product-cont .platform-item:before {
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: #7f809d;
    content: '';
    top: 0;
    left: 0;
}

.product-cont .platform-item h3 {
    font-weight: bold;
    color: #343434;
    font-size: 20px;
    line-height: 30px;
}

.product-cont .platform-item h3 span {
    color: #7f809d;
    font-size: 16px;
    display: block;
}

.product-cont .platform-item .platform-desc {
    font-size: 14px;
    color: #6b6b6b;
}

@media (max-width: 767px) {
    .product-cont{
        padding: 20px 0 40px;
    }
    .product-item img{
        max-width: 100%;
    }
    .product-cont h2{
        font-size: 20px;
        line-height: 40px;
    }
    .product-cont p{
        font-size: 14px;
    }
    .product-cont .platform-item h3{
        font-size: 18px;
    }
    .product-cont .platform-item{
        margin-bottom: 20px;
    }
}