/***
 * about styles
 **/
.main-content .about-top{
    margin-top: 40px;
    display: flex;
}
.main-content .about-top .about-top-content{
    width: 50%;
    padding: 0 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    box-shadow: 0px 0px 6px 1px rgba(0,0,0,0.16);
}
.main-content .about-top .about-top-content .about-top-content-title{
    font-weight: bold;
    font-size: 30px;
    color: #000000;
    line-height: 45px;
}
.main-content .about-top .about-top-content .about-top-content-desc{
    font-size: 16px;
    color: #6A6A6A;
    line-height: 33px;
    margin-top: 50px;
}
.main-content .about-top .about-top-img{
    width: 50%;
}
.main-content .about-top .about-top-img img{
    width: 100%;
    height: 100%;
}
.main-content .about-description{
    font-size: 16px;
    color: #6A6A6A;
    line-height: 33px;
    margin-top: 60px;
}

@media only screen and (min-width: 1000px) and (max-width: 1440px) {
    .main-content .about-top .about-top-content .about-top-content-desc{
        margin-top: 20px;
        line-height: 28px;
    }
    .main-content .about-description{
        margin-top: 30px;
        line-height: 28px;
    }
}
@media only screen and (max-width: 1000px) {
    .main-content .about-top .about-top-content .about-top-content-title{
        font-size: 24px;
    }
    .main-content .about-top .about-top-content .about-top-content-desc{
        margin-top: 10px;
        font-size: 14px;
        line-height: 24px;
    }
    .main-content .about-description{
        margin-top: 30px;
        font-size: 14px;
        line-height: 28px;
    }
}


/**
 * CHOOSE STYLES
 **/
.choose{
    width: 100%;
    display: flex;
    align-items: center;
}
.choose .choose-left{
    width: 50%;
    aspect-ratio: 960 / 806;
    padding-left: calc( (100% - 1200px) / 2 );
    padding-right: 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background-repeat: no-repeat;
    background-size: 100% 100%;
}
.choose .choose-left .choose-left-title{
    font-weight: bold;
    font-size: 20px;
    color: #E53F29;
    line-height: 22px;
}
@font-face {
    font-family: 'AaHouDiHei';
    src: url('../fonts/AaHouDiHei-2.ttf') format('ttf');
}
.choose .choose-left .choose-left-subtitle{
    font-family: 'AaHouDiHei';
    font-size: 30px;
    color: #FFFFFF;
    line-height: 45px;
    margin: 25px 0;
}
.choose .choose-left .choose-left-desc{
    font-size: 16px;
    color: #FFFFFF;
    line-height: 30px;
}
.choose .choose-left .choose-left-content{
    margin-top: 40px;
}
.choose .choose-left .choose-left-content .choose-content-item{
    width: 100%;
}
.choose .choose-left .choose-left-content .choose-content-item .choose-content-item-circle-warp{
    width: 60px;
    height: 60px;
    background: rgba(229, 63, 41, 0.3);
    border-radius: 50%;
    float: left;
}
.choose .choose-left .choose-left-content .choose-content-item .choose-content-item-circle-warp .choose-content-item-circle{
    width: 42px;
    height: 42px;
    background: #E53F29;
    border-radius: 50%;
    margin: 9px;
    font-family: DIN, DIN;
    font-weight: bold;
    font-size: 24px;
    color: #FFFFFF;
    line-height: 42px;
    text-align: center;
}
.choose .choose-left .choose-left-content .choose-content-item .choose-content-item-text{
    margin-left: 20px;
    max-width: calc(100% - 80px);
    float: left;
}
.choose .choose-left .choose-left-content .choose-content-item .choose-content-item-text .choose-content-item-title{
    font-weight: bold;
    font-size: 20px;
    color: #FFFFFF;
    line-height: 22px;
}
.choose .choose-left .choose-left-content .choose-content-item .choose-content-item-text .choose-content-item-desc{
    font-size: 16px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 30px;
    margin-top: 10px;
}
.choose .choose-left .choose-left-content .choose-content-item .choose_content-item-line{
    width: 2px;
    height: 26px;
    background: #E53F29;
    margin: 16px 29px;
}
.choose .choose-right{
    width: 50%;
}
.choose .choose-right img{
    width: 100%;
}

@media only screen and (min-width: 1000px) and (max-width: 1440px) {
    .choose .choose-left{
        padding-left: calc( (100% - 900px) / 2 );
    }
    .choose .choose-left .choose-left-title{
        font-size: 18px;
    }
    .choose .choose-left .choose-left-subtitle{
        font-size: 24px;
        line-height: 36px;
        margin: 10px 0;
    }
    .choose .choose-left .choose-left-desc{
        font-size: 14px;
        line-height: 24px;
    }
    .choose .choose-left .choose-left-content{
        margin-top: 20px;
    }
    .choose .choose-left .choose-left-content .choose-content-item .choose-content-item-circle-warp{
        width: 48px;
        height: 48px;
    }
    .choose .choose-left .choose-left-content .choose-content-item .choose-content-item-circle-warp .choose-content-item-circle{
        width: 32px;
        height: 32px;
        margin: 8px;
        font-size: 18px;
        line-height: 32px;
    }
    .choose .choose-left .choose-left-content .choose-content-item .choose-content-item-text{
        margin-left: 10px;
        max-width: calc(100% - 60px);
    }
    .choose .choose-left .choose-left-content .choose-content-item .choose-content-item-text .choose-content-item-title{
        font-size: 16px;
        line-height: 18px;
    }
    .choose .choose-left .choose-left-content .choose-content-item .choose-content-item-text .choose-content-item-desc{
        font-size: 12px;
        line-height: 20px;
    }
    .choose .choose-left .choose-left-content .choose-content-item .choose_content-item-line{
        height: 20px;
        margin: 10px 24px;
    }
}

@media only screen and (max-width: 1000px) {
    .choose{
        flex-direction: column;
    }
    .choose .choose-left{
        width: 100%;
        padding: 0 calc((100% - 700px) / 2);
    }
    .choose .choose-right{
        width: 100%;
    }
}




/**
 * certificate styles
 ***/
.certificate{
    width: 1200px;
    margin: 80px auto 60px;
}
.certificate .certificate-list{
    margin-top: 40px;
    display: flex;
    flex-wrap: wrap;
}
.certificate .certificate-item{
    width: 24%;
    margin-right: 1.33%;
    margin-bottom: 20px;
}
.certificate .certificate-item:nth-child(4n){
    margin-right: 0;
}
.certificate img{
    width: 100%;
}


@media only screen and (min-width: 1000px) and (max-width: 1440px) {
    .certificate{
        width: 900px;
    }
}
@media only screen and (max-width: 1000px) {
    .certificate{
        width: 700px;
    }
}


/**
 * brands styles
 **/
.brands{
    width: 100%;
    padding: 60px 0;
    background: #E53F29;
}
.brands .brands-content{
    width: 1200px;
    margin: 0 auto;

}
.brands .brands-content .brands-title{
    font-weight: bold;
    font-size: 22px;
    color: #FFFFFF;
    line-height: 25px;
    text-align: center;
}
.brands .brands-content .brands-list{
    margin-top: 60px;
    position: relative;
}
.brands .swiper-slide img{
    width: 100%;
}

.brands .swiper-button-prev,
.brands .swiper-button-next{
    width: 20px;
    height: 20px;
    border: 1px solid #FFFFFF;
    top: 50%;
    transform: translateY(50%);
}
.brands .swiper-button-prev{
    left: -62px;
}
.brands .swiper-button-next{
    right: -62px;
}
.brands .swiper-button-prev::after,
.brands .swiper-button-next::after{
    font-size: 12px;
    color: #FFFFFF;
}


@media only screen and (min-width: 1000px) and (max-width: 1440px) {
    .brands .brands-content{
        width: 900px;
    }
}
@media only screen and (max-width: 1000px) {
    .brands .brands-content{
        width: 700px;
    }
}