.xx-about > .head {
    background-image: url(../images/about-head.jpg);
    background-repeat: no-repeat;
    background-position: center top;
}
.xx-about > .head .container {
    height: 47.5rem;
    position: relative;
}
.xx-about > .head .title {
    position: absolute;
    left: 4.0625rem;
    top: 10rem;
    background-image: url(../images/logo-xl.png);
    background-repeat: no-repeat;
    background-size: auto 5rem;
    background-position: -1.25rem -.625rem;
}
.xx-about > .head .title h1 {
    font-weight: 900;
    font-size: 3.75rem;
    padding: 5rem 0 1.875rem;
    position: relative
}
.xx-about > .head .title h1::after {
    content: '';
    width: 6.25rem;
    height: 2px;
    background-color: #333;
    position: absolute;
    left: 0;
    bottom: 0;
}
.xx-about > .head .title h4 {
    margin-top: 1.25rem;
}
.xx-about > .head .title .btn {
    margin-top: 3.125rem;
}


/** 公司简介 **/
.xx-about > .company .container {
    padding-top: 3.75rem;
    padding-bottom: 1.875rem;
}
.xx-about > .company .container h1 {
    text-align:  center;
}
.xx-about > .company .content-wrap {
    display: flex;
    display: -webkit-flex;
    flex-direction: row;
    margin-top: 3.125rem;
}
.xx-about > .company .content {
    width: 50rem;
}
.xx-about > .company .content h4 {
    font-size: 1.5rem;
    font-weight: 700;
    padding-bottom: 1.5625rem;
    border-bottom: 1px solid #999;
    position: relative;
    margin-bottom: 1.25rem;
}
.xx-about > .company .content h4::after {
    content: '';
    width: 6.25rem;
    height: .25rem;
    background-color: #d7000f;
    position: absolute;
    left: 0;
    bottom: 0;
}
.xx-about > .company .content p {
    font-size: 1.125rem;
    padding: 0;
    margin: 0;
    line-height: 1.8;
    color: #333;
    text-indent: 2em;
}

.xx-about > .intro {
    background-color: #fef7f7;
}
.xx-about > .intro .container {
    padding-top: 1.875rem;
    padding-bottom: 4.0625rem;
    display: flex;
    display: -webkit-flex;
    flex-direction: row;
    position: relative;
}
.xx-about > .intro .content {
    width: 50rem;
}
.xx-about > .intro .content p {
    font-size: 1rem;
    line-height: 1.8;
    border-bottom: 1px solid #999;
    margin: 0 0 0 3.75rem;
    padding: .75rem 0;
    position: relative;
}
.xx-about > .intro .content p::after {
    content: '';
    width: 3.125rem;
    height: 3.125rem;
    background-image: url(../images/about-icon.png);
    background-repeat: no-repeat;
    position: absolute;
    left: -3.75rem;
    top: calc((100% - 3.125rem) / 2);
    background-size: auto 3.125rem;
}
.xx-about > .intro .content p.item-2::after {
    background-position: -3.125rem 0;
}
.xx-about > .intro .content p.item-3::after {
    background-position: -6.25rem 0;
}
.xx-about > .intro .content p.item-4::after {
    background-position: -9.375rem 0;
}
.xx-about > .intro .building {
    width: 37.5rem;
    height: 50rem;
    background-image: url(../images/about-building.jpg);
    background-repeat: no-repeat;
    background-position: left bottom;
    background-size: auto 48.75rem;
    position: absolute;
    bottom: 0;
    left: 52.5rem;
    z-index: 10;
}




/** 行业案例 **/
.xx-about > .case {
    background-color: #fef7f7;
}
.xx-about >.case .container {
    height: 46.875rem;
    padding-top: 3.75rem;
    position: relative;
}
.xx-about > .case .case-swiper-pagination-mb,
.xx-about > .case .container .slider .swiper-pagination {
    position: absolute;
    text-align: center;
    width: 100%;
    bottom: .625rem;
}
.xx-about > .case .container .slider {
    position: relative;
    padding: 1.875rem 0 3.125rem;
}
.xx-about > .case .container .slider .swiper-pagination-bullet {
    border-radius: 0;
    transform: skewX(-15deg);
    width: .625rem;
    height: .625rem;
    margin: 0 .3125rem;
}
.xx-about > .case .container .slider .swiper-pagination-bullet-active {
    background-color: #d7000f;
}
.xx-about > .case .container .slider .swiper-button-next,
.xx-about > .case .container .slider .swiper-button-prev {
    width: 6.25rem;
    height: 6.25rem;
    background-image: url(../images/slider.png);
    background-repeat: no-repeat;
    background-position: -6.25rem 0;
    background-size: auto;
    right: -3.125rem;
    top: calc(50% - 2.5rem)
}
.xx-about > .case .container .slider .swiper-button-prev {
    background-position: 0 0;
    left: -3.125rem;
}
.xx-about > .case .swiper-slide {
    border-radius: 4.375rem 1.25rem;
    overflow: hidden;
}
/** 合作伙伴 **/
.xx-about > .partners {
    background-color: #f5f7f9;
}
.xx-about > .partners .container {
    height: 17.5rem;
    padding-top: 2.5rem;
}
.xx-about > .partners .container .logos {
    height: 5.625rem;
    margin-top: 1.875rem;
    overflow: hidden;
    position: relative;
}
.xx-about > .partners .container .logos .partners-slide {
    display: flex;
    display: -webkit-flex;
    flex-direction: row;
    flex-wrap: nowrap;
    position: absolute;
    left: 0;
    top: 0;
}
.xx-about > .partners .container .logos .partners-slide .logo-slider {
    animation: partners-logo-animation 15s linear infinite;
}
@keyframes partners-logo-animation {
    from {
        margin-left: 0;
    }
    to {
        margin-left: -50%;
    }
}
.xx-about > .case .container h1, .xx-about > .case .container h6,
.xx-about > .partners .container h1 {
    text-align: center;
    padding-bottom: .625rem;
}





@media (max-width: 1200px) {
    .xx-about > .head {
        background-position: center center;
        background-size: auto 100%;
    }
    .xx-about > .head h4 {
        font-size: 2rem;
    }

    .xx-about > .company h1 {
        font-size: 3rem;
    }
    .xx-about > .company .content h4 {
        font-size: 2rem;
    }
    .xx-about > .company .content p {
        font-size: 1.5rem;
    }

    .xx-about > .intro .content p {
        font-size: 1.5rem;
        margin-left: 7.5rem;
    }
    .xx-about > .intro .content p::after {
        width: 6.25rem;
        height: 6.25rem;
        left: -7.25rem;
        top: calc((100% - 6.25rem) / 2);
        background-size: auto 6.25rem;
    }
    .xx-about > .intro .content p.item-2::after {
        background-position-x: -6.25rem;
    }
    .xx-about > .intro .content p.item-3::after {
        background-position-x: -12.5rem;
    }
    .xx-about > .intro .content p.item-4::after {
        background-position-x: -18.75rem;
    }
    .xx-about > .intro .building {
        display: none;
    }

    .xx-about > .case .container {
        height: 52rem;
    }
    .xx-about > .case .container h1 {
        font-size: 3rem;
    }
    .xx-about > .case .container h6 {
        font-size: 1.5rem;
    }
    .xx-about > .case .slider.pc {
        display: none;
    }

    .xx-about > .partners h1 {
        font-size: 3rem;
    }
    .xx-about > .partners .container {
        height: 20rem;
    }
    .xx-about > .partners .logos,
    .xx-about > .partners img {
        height: 8rem !important;
    }

    .xx-about > .partition .intro .channel,
    .xx-about > .partition .holder,
    .xx-about > .partition .contact,
    .xx-about > .partition .intro .title .line {
        display: none !important;
    }
    .xx-about .partition .container {
        justify-content: space-between;
    }
    .xx-about .partition .intro .title h3,
    .xx-about .partition .intro .title h4 {
        font-size: 1.5rem;
        width: 27rem;
        line-height: 1.5;
    }
    .xx-about .partition .container .intro .title {
        display: flex;
        display: -webkit-flex;
        flex-direction: column;
        align-items: start;
    }
    .xx-about .partition .container .intro .title .logo {
        margin-bottom: .5rem;
    }


}