.about-box {
    width: 1200px;
    margin: 0 auto;
}
.about-box .item-content {
    position: relative;
    display: flex;
    flex-flow: row nowrap;
    max-width: 1200px;
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    box-sizing: border-box;
    align-items: center;
    margin-top: 100px;
}
.about-box .item-content .item-img {
    position: relative;
    width: 50%;
    padding-top: 50%;
    flex-shrink: 0;
}
.about-box .item-content .item-img img {
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    width: 100%;
}
.about-box .item-content .item-text {
    padding-top: 0;
    margin-left: 40px;
    font-size: 18px;
}
.about-box .item-content .item-text h2 {
    display: inline-block;
    padding-bottom: 27px;
    border-bottom: 1px solid #000;
    font-size: 28px;
    margin-bottom: 20px;
    font-weight: 400;
}
.about-box .item-content .item-text h4 {
    font-size: 14px;
    padding-bottom: 0;
    margin-bottom: 25px;
    line-height: 2;
    font-weight: bold;
}
.about-box .item-content .item-text p {
    font-size: 18px;
    padding-bottom: 0;
    margin-bottom: 25px;
    line-height: 2;
}
.about-box .item-content .item-text span {
    margin-bottom: 25px;
    line-height: 2;
    font-size: 17px;
    font-weight: bold;
}
.details {
    margin-bottom: 150px;
}
.details .item-text {
    width: 50%;
}
.details .item-text li {
    line-height: 40px;
}
.details .item-text li i {
    padding-right: 16px;
    color: #e4e4e4;
}
.details .item-img {
    padding-top: 37.5% !important;
}
@media(max-width: 768px){
    .about-box {
        width: 100%;
    }
    .about-box .item-content {
        margin-top: 60px;
        display: block;
    }
    .about-box .item-content .item-img {
        width: 100%;
        height: 300px;
    }
    .about-box .item-content .item-text {
        margin-top: 20px;
    }
    .details .item-text {
        margin-left: 0;
    }
    .details .item-img {
        display: none;
    }
}