/* main */

.main h2 {
    margin: 30px 30px 50px;
}

.main h2 span {
    color: #2aadeb;
}

.main p {
    text-indent: 2em;
    margin: 10px 0px;
    font-size: 16px;
    line-height: 28px;
}

.introduct_pic1 img {
    border-radius: 10px;
}

.main .st_title {
    font-weight: 700; 
    text-indent: 0; 
    margin-top: 30px;
    font-size: 20px;
}




/* 移动端 */
@media screen and (max-width: 768px) {
    .context img {
        margin-left: 0px;
    }

    .main h2 {
        margin: 30px 2.5% 50px;
    }

    .main p {
        font-size: 14px;
    }
}