.about-us {
    background: url("/images/about_bg.png") no-repeat;
    background-size: 100% 100%;
    padding-bottom: 100px;
}

.about-text {
    padding-top: 100px;
    width: 40%;
}

.about-box {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.english-title {
    color: #46B5B8;
    font-size: 16px;
}

.china-title {
    color: #000000;
    font-size: 40px;
}
.color-white {
    color: #ffffff !important;
}

.about-content {
    color: #ffffff;
    margin-top: 48px;
    font-size: 16px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #FFFFFF;
    line-height: 26px;
}

.about-icon {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 600px;
    height: 600px;
    flex-wrap: wrap;
    padding-top: 100px;
    padding-left: 40px;
    flex: 1;
}

.youdian-box-1 {
    width: 50%;
    height: 50%;
}

.youdian-box-2 {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border: 1px solid #ffffff;
    width: 50%;
    height: 50%;
}

.youdian-box-3 {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border: 1px solid #ffffff;
    width: 50%;
    height: 50%;
}

.youdian-box-4 {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: rgba(255, 255, 255, 0.5);
    border: 1px solid transparent;
    width: 50%;
    height: 50%;
}

.youdian-text {
    width: 96px;
    height: 24px;
    font-size: 24px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #FFFFFF;
    line-height: 75px;
    text-align: center;
}

.youdian-english {
    width: 193px;
    height: 13px;
    font-size: 16px;
    font-family: DIN;
    font-weight: bold;
    color: #FFFFFF;
    line-height: 75px;
    opacity: 0.5;
    text-align: center;
    margin-top: 18px;
}

.content-box {
    padding: 100px 0;
}

.title-box {
    line-height: 18px;
}

.zizhi-img {
    width: 100%;
    height: 100%;
    object-fit: fill;
    -webkit-box-reflect: below 0px -webkit-linear-gradient(transparent, transparent 85%, rgba(0, 0, 0, 0.2));
}

.check-imgs {
    margin-top: 45px;
}

.check-bg {
    width: 100%;
    height: auto;
    background: url("/images/certificate.png") no-repeat;
    background-size: 100% 100%;
    padding: 15px;
    margin: 0 5px;
}

.check-img {
    width: 100%;
    height: 100%;
    object-fit: fill;
}