.ytht-module-title {
    font-size: var(--bobo-about-title-size, 32px);
    line-height: 1;
    font-weight: 700;
    margin-bottom: 1em;
    text-align: center; 
}

.pd-t-b {
    padding-top: 70px;
}

.ytht-mb-30 {
    margin-bottom: 30px;
}

.cert-list {
    text-align: center;
}

/* .cert-list ul {
    margin: 0 0 0 -2%;
} */

.cert-list ul li a {
    display: block;
    width: 100%;
    overflow: hidden;
}

.cert-list ul li img {
    width: 100%;
    border: 3px solid #e0e0e0;
    box-sizing: border-box;
    display: block;
}

.cert-list ul li p {
    font-size: 16px;
    margin: 10px 0 0 0;
    color: #252525;
}

@media screen and (max-width: 768px) {
    .main {
        padding-top: 25px;
        padding-bottom: 30px;
    }
}