* {
    margin: 0;
    padding: 0;
    border: 0;
    font-family: "Microsoft YaHei", arial, sans-serif, tahoma;
}

html, body {
    font-size: 14px;
    color: #333
}

p{
    font-weight: normal;
    margin: 15px 0;
    line-height: 180%;
}

a{
    color: #07B062;
}

.row_a{
    background: #f2f2f2;
    padding: 20px;
    border-radius: 10px;
}

.row_b{
    background: #fff;
    padding: 20px;
}

.row_a h4 span, .row_b h4 span {
    position: relative;
    padding-bottom: 3px;
}

.row_a h4 span::after, .row_b h4 span::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 3px;
    right: 5px;
    width: 87%; /* 根据需要调整宽度 */
    height: 5px;
    background-color: #20D97C;
}


.row_text {
    padding-top: 5px;
    padding-bottom: 5px;
}

.sub-title-text {
    font-size: 1.1em;
    color: #000;
    font-weight: bold;
}

.col_imgs img{
    width: 80%;
    float:right;
}

footer{
    text-align: center;
    padding: 40px 0;
}

@media only screen and (max-width: 768px){
    header img{
        width: 100%;
        margin-top: 2.5em;
    }
    .col_imgs{
        text-align: center;
    }
    .col_imgs img{
        width: 60%;
        float: none;
    }
    .row_a{
        border-radius: 0px;
    }
    p{
        font-weight: normal;
        margin: 10px 0;
    }
}