.main .section-product-header h1{
    margin-left: 10%
}
.main .section-product-header h3{
    margin-left: 10%
}

.introduce{
    padding: 1em;
    overflow: hidden;
    border-bottom: 1px solid #CCC;
}

.introduce p{
    text-indent:35px;
}

.introduce li{
    margin-top: 10px;
}

.introduce img{
    display: block;
    max-width: 100%;
    height: auto;
}

.row-c3 img {
    display: block;
    max-width: 100%;
    height: auto;
}

@media (max-width: 768px) {
    .main .section-product-header{
        margin-top: 2em;
        margin-bottom: 2em;
        padding: 2em 0;
        background: #bbbbbb;
        border-top: solid 1px #eaf2ff;
        border-bottom: solid 1px #eaf2ff;
    }

    .content {
        margin-left: 10%;
        padding: 30px 0;
    }


    .row-c3 {
        padding: 1em;
        width: 50%;
        float: left;
        box-sizing: border-box;
        position: relative;
    }

    .row-c2 {
        padding: 1em;
        float: left;
        box-sizing: border-box;
        position: relative;
    }
}

@media(min-width:768px){
    .content {
        margin-left: 10%;
        padding: 30px 0;
    }
    .introduce{
        padding: 1em;
        overflow: hidden;
    }
    .row-c3 {
        padding: 1em;
        width: 33%;
        float: left;
        box-sizing: border-box;
        position: relative;
    }

    .row-c2 {
        width: 50%;
        padding: 1em;
        float: left;
        box-sizing: border-box;
    }

    .main .section-product-header{
        margin-bottom: 2em;
        padding: 2em 0;
        background: #bbbbbb;
        border-top: solid 1px #eaf2ff;
        border-bottom: solid 1px #eaf2ff;
    }

}