.about-top-wrap {
    margin: 0.7rem auto;
}

.about-top-box {
    margin-top: .4rem;
    display: flex;
    align-items: center;
}

.about-top-img {
    width: 8rem;
    height: 5rem;
    flex-shrink: 0;
}

.about-top-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-top-des {
    flex: 1;
    margin-right: .7rem;
}

.about-top-title {
    font-size: 0.32rem;
    font-family: SegoeUI-Bold-, SegoeUI-Bold;
    font-weight: normal;
    color: #333333;
    padding-bottom: .25rem;
    position: relative;
}

.about-top-title::after {
    content: '';
    width: 0.61rem;
    height: 0.04rem;
    background: #333;
    position: absolute;
    left: 0;
    bottom: 0;
}

.about-top-p {
    font-size: 0.18rem;
    font-family: Microsoft YaHei-Regular, Microsoft YaHei;
    font-weight: 400;
    color: #666666;
    line-height: 0.26rem;
    margin-top: .24rem;
}

/* 发展历程 */
.history-wrap {
    width: 100%;

    position: relative;
}

.history-box {
    margin-top: .5rem;
    height: 7rem;
    position: relative;
    background: url(../img/about/lc-bg.png) no-repeat;
    background-size: cover;
    padding: 0 1.5rem;
}

.history-box::after {
    content: '';
    width: 100%;
    height: 0.02rem;
    background: #fff;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    left: 0;
}

.historySwiper {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.history-ball-wrap {
    width: 100%;
    height: 50%;
    position: relative;
}

.history-ball {
    width: 0.4rem;
    height: 0.4rem;
    background: #F18F29;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    bottom: -.2rem;
    left: 50%;
    transform: translateX(-50%);
}

.history-ball p {
    width: 0.2rem;
    height: 0.2rem;
    background: #FFFFFF;
    border-radius: 50%;
}

.history-des {
    height: 50%;
    text-align: center;
    overflow: hidden;

    padding: .2rem 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.history-year {
    font-size: 0.24rem;
    font-family: Microsoft YaHei-Bold, Microsoft YaHei;
    font-weight: bold;
    color: #FFFFFF;
    margin-top: .2rem;
    margin-bottom: .1rem;
}

.history-text {
    font-size: 0.2rem;
    font-family: Microsoft YaHei-Bold, Microsoft YaHei;
    font-weight: bold;
    color: #FFFFFF;
    line-height: 0.35rem;
}

.history-p {
    font-size: 0.16rem;
    font-family: Microsoft YaHei-Regular, Microsoft YaHei;
    font-weight: 400;
    color: #FFFFFF;
    line-height: 0.3rem;
    margin-bottom: .2rem;
}

.historySwiper .swiper-slide {
    display: flex;
    flex-direction: column;
}

.historySwiper .swiper-slide:nth-child(even) .history-des {
    order: -1;
    justify-content: flex-end;
}

.historySwiper .swiper-slide:nth-child(even) .history-ball {
    top: -.2rem;
    bottom: auto;
}

/*  */
.class-wrap {
    width: 100%;
    position: relative;
    margin: .7rem auto;
}

.class-box {
    margin-top: .5rem;
    position: relative;
    background: url(../img/about/class-bg.png) no-repeat;
    background-size: cover;
    padding: 1.7rem 0;
}

.classSwiper {
    margin: 0 auto;
}

.class-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.class-item img {
    width: 2.51rem;
    height: 2.51rem;
    object-fit: cover;
}

.class-item p {
    font-size: 0.32rem;
    font-family: Microsoft YaHei-Bold, Microsoft YaHei;
    font-weight: bold;
    color: #333333;
    margin-top: .7em;
}