.header .header-nav-item:nth-child(6)::after{
    width: 60%;
}


.about{
    width: 100%;
    padding-top: 60px;
}
.about .about-content{
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.about .about-content .about-image{
    width: 50%;
    aspect-ratio: 960 / 560;
}
.about .about-content .about-image img{
    width: 100%;
    height: 100%;
}
.about .about-content .about-text{
    width: calc(50% - 30px);
    padding-left: calc((50% - 600px));
}
.about .about-content .about-text .about-text-title{
    font-size: 40px;
    font-weight: bold;
    color: #1A1A1A;
    line-height: 44px;
    margin-bottom: 30px;
}
.about .about-content .about-text .about-text-desc{
    font-size: 14px;
    color: #1A1A1A;
    line-height: 21px;
    margin-bottom: 30px;
}
.about .more{
    width: 181px;
    height: 46px;
    background: #DA251C;
    font-size: 14px;
    color: #FFFFFF;
    text-align: center;
    line-height: 46px;
}
.about .more a{
    width: 100%;
    height: 100%;
    display: block;
    color: #FFFFFF;
}

@media screen and (min-width: 1000px) and (max-width: 1440px){
    .about .about-content .about-text{
        padding-left: calc( 50% - 450px );
    }
    .about .about-content .about-text .about-text-title{
        font-size: 30px;
        line-height: 30px;
        margin-bottom: 10px;
    }
    .about .about-content .about-text .about-text-desc{
        font-size: 12px;
        line-height: 16px;
        margin-bottom: 10px;
    }
}
@media screen and (max-width: 1000px){
    .about .about-content .about-text{
        padding-left: calc( 50% - 350px );
    }
    .about .about-content .about-text .about-text-title{
        font-size: 20px;
        line-height: 24px;
        margin-bottom: 10px;
    }
    .about .about-content .about-text .about-text-desc{
        font-size: 12px;
        line-height: 16px;
        margin-bottom: 10px;
    }
    .about .more{
        width: 120px;
        height: 30px;
        line-height: 30px;
        font-size: 10px;
    }
}


.certificate{
    width: 1200px;
    margin: 80px auto;
    position: relative;
}
.certificate .certificate-item{
    width: 24%;
    margin-right: 1.33%;
    cursor: pointer;
    margin-top: 30px;
    float: left;
}
.certificate .certificate-item:nth-child(4n){
    margin-right: 0;
}
.certificate .certificate-item:nth-child(-n+4){
    margin-top: 0;
}
.certificate .certificate-item img{
    width: 100%;
    cursor: pointer;
}


@media only screen and (min-width: 1000px) and (max-width: 1440px) {
    .certificate{
        width: 900px;
    }
    .about_bg{
        height: 160px;
    }
    .certificate .swiper-button-prev,
    .certificate .swiper-button-next{
        width: 36px;
        height: 36px;
    }
    .certificate .swiper-button-prev{
        left: -50px;
    }
    .certificate .swiper-button-next{
        right: -50px;
    }
}
@media only screen and (max-width: 1000px) {
    .certificate{
        width: 700px;
    }
    .about_bg{
        height: 130px;
    }
    .certificate .swiper-button-prev,
    .certificate .swiper-button-next{
        width: 36px;
        height: 36px;
    }
    .certificate .swiper-button-prev{
        left: -50px;
    }
    .certificate .swiper-button-next{
        right: -50px;
    }
}

.partner-wrap{
    width: 100%;
    padding: 80px 0;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}
.partner{
    width: 1200px;
    margin: 0 auto;
}
.partner .title{
    color: #FFFFFF;
}
.partner .partner-list{
    display: flex;
    margin-top: 30px;
    flex-wrap: wrap;
}
.partner .partner-list .partner-item{
    width: 16.666%;
    aspect-ratio: 2 / 1;
    margin-top: 26px;
    margin-right: 4.16667%;
    cursor: pointer;
    overflow: hidden;
}
.partner .partner-list .partner-item:nth-child(-n+5){
    margin-top: 0;
}
.partner .partner-list .partner-item:nth-child(5n){
    margin-right: 0;
}
.partner .partner-list .partner-item img{
    width: 100%;
    height: 100%;
    transition: all 0.5s ease;
}
.partner .partner-list .partner-item:hover img{
    transform: scale(1.1);
}



@media only screen and (min-width: 1000px) and (max-width: 1440px) {
    .partner{
        width: 900px;
    }
}
@media only screen and (max-width: 1000px) {
    .partner{
        width: 700px;
    }
}