.com_serve_swiper_par .com_tit_size {
    color: #fff
}

.com_header {
    background: rgba(0, 0, 0, .2);
}

.common_header .header_top_box {
    border-bottom: none;
}

.home_swiper {
    position: relative;
    overflow: hidden
}

.home_swiper .img {
    padding-bottom: 46.875%
}

.home_swiper .img img {
    object-fit: contain
}

.home_swiper .swiper-button-prev,
.home_swiper .swiper-button-next {
    width: 46px;
    height: 105px;
    background-repeat: no-repeat;
    background-size: 25%;
    background-color: rgba(0, 0, 0, 0.5);
    background-position: center;
    z-index: 9;
    background-image: url(../images/color/home_swiper_default.png)
}

.home_swiper .swiper-button-prev:hover,
.home_swiper .swiper-button-next:hover {
    background-color: var(--color-main);
    background-image: url(../images/color/home_swiper_hover.png)
}

.home_swiper .swiper-button-prev {
    left: 0;
    transform: rotate(180deg)
}

.home_swiper .swiper-button-prev:hover {
    transform: rotate(0)
}

.home_swiper .swiper-button-next {
    right: 0
}

.home_swiper .swiper-button-next:hover {
    transform: rotate(180deg)
}

.home_swiper .swiper-pagination-bullet {
    width: 7px;
    height: 7px;
    background: #ffffff;
    opacity: 1;
    border-radius: 0;
    margin: 0 23px !important
}

.home_swiper .swiper-pagination-bullet-active {
    opacity: 1;
    width: 14.5px;
    height: 14.5px;
    border-radius: 0;
    border: 1px solid var(--color-main);
    background: transparent
}

.home_swiper .swiper-pagination-bullet-active::after {
    content: "";
    display: block;
    width: 4.3px;
    height: 4.3px;
    background: var(--color-main);
    margin-left: 4.3px;
    margin-top: 4.3px
}

.home_swiper_h5 {
    padding-bottom: 118.5%
}

.who_we_are {
    --pd: 55px;
    --ll-img-pos: 54px;
    margin-top: 6.25%;
    padding-bottom: var(--ll-img-pos)
}

.who_we_are .ll,
.who_we_are .rr {
    width: calc(50% - var(--pd) / 2)
}

.who_we_are .ll .img {
    width: calc(50% - 9px);
    padding-bottom: 73.7%
}

.who_we_are .ll .img:nth-child(2) {
    transform: translateY(var(--ll-img-pos))
}

.who_we_are .rr a {
    display: block
}

.who_we_are .rr .desc {
    font-family: Avenir;
    font-weight: 400;
    font-size: 16px;
    color: #666666;
    margin-top: 30px;
    line-height: 1.8em;
    max-height: 5.4em;
    overflow: hidden
}

.who_we_are .rr ul {
    margin-top: 55px
}

.who_we_are .rr ul li {
    max-width: 30%
}

.who_we_are .rr ul li div {
    font-family: Avenir;
    font-weight: 400;
    font-size: 78px;
    color: var(--color-main);
    line-height: 1
}

.who_we_are .rr ul li span {
    font-family: Avenir;
    font-weight: 400;
    font-size: 18px;
    color: #666666;
    margin-top: 20px
}

.who_we_are .rr .a_link_more {
    margin-top: 60px
}

.tit_par {
    align-items: center
}

.tit_par .com_tit_size {
    max-width: calc(100% - 222px)
}

.what_we_do {
    margin-top: 6.25%
}

.what_we_do .list {
    --len: 4;
    --pd: 25px;
    --mt: 40px;
    margin-top: 30px
}

.what_we_do .list .item {
    width: calc(100% / var(--len) - var(--pd) * (var(--len) - 1) / var(--len));
    margin-left: var(--pd);
    margin-top: var(--mt)
}

.what_we_do .list .item:nth-child(4n + 1) {
    margin-left: 0
}

.what_we_do .list .item:nth-child(-n + 4) {
    margin-top: 0
}

.what_we_do .list .item:hover .img {
    border-color: var(--color-main)
}

.what_we_do .list .item:hover .title {
    color: var(--color-main)
}

.what_we_do .list .item .img {
    padding-bottom: 100%;
    border: 1px solid transparent
}

.what_we_do .list .item .title {
    margin-top: 20px;
    font-family: Avenir;
    font-weight: 400;
    font-size: 22px;
    color: #000000;
    line-height: 1.3em;
}

.what_we_do .list .item .desc {
    font-family: Avenir;
    font-weight: 400;
    font-size: 16px;
    color: #666666;
    line-height: 1.3em;
    margin-top: 10px;
    /* max-height: 3.9em;
    overflow: hidden */
}

.related_news {
    margin-top: 6.25%
}

@media screen and (max-width:1660px) {
    .who_we_are .rr ul li div {
        font-size: 60px
    }
}

@media screen and (max-width:1366px) {
    .who_we_are {
        padding-bottom: 0
    }

    .who_we_are .rr ul li {
        align-items: flex-start
    }

    .who_we_are .rr ul li div {
        font-size: 50px
    }

    .who_we_are .rr .a_link_more {
        margin-top: 30px
    }

    .our_say .list {
        margin-top: 25px
    }
}

@media screen and (max-width:950px) {
    .tit_par .com_tit_size {
        max-width: unset
    }

    .who_we_are_layout {
        padding: 0
    }

    .com_tit {
        font-size: 18px
    }

    .who_we_are .ll,
    .who_we_are .rr {
        width: 100%
    }

    .who_we_are {
        padding-bottom: 80px
    }

    .who_we_are .rr {
        margin-top: calc(var(--ll-img-pos) + 30px)
    }

    .related_news {
        margin-top: 40px
    }

    .who_we_are .rr {
        padding: 0 30px
    }

    .who_we_are .rr ul {
        margin-top: 0
    }

    .who_we_are .rr ul li {
        margin-top: 30px;
        max-width: 50%;
        width: 50%;
        align-items: flex-start
    }

    .who_we_are .rr ul li span {
        /* text-align: center */
    }

    .who_we_are .rr .desc {
        margin-top: 20px;
        max-height: unset
    }

    .who_we_are .rr .a_link_more {
        margin-top: 30px
    }

    .what_we_do {
        margin-top: 0;
        padding-bottom: 50px
    }

    .what_we_do .list {
        margin-top: 0;
        margin-bottom: 50px
    }

    .what_we_do .list .item {
        width: 100% !important;
        margin: 0 !important;
        margin-top: 38px !important
    }

    .what_we_do .list .item .title {
        height: unset
    }

    .what_we_do .list .item .desc {
        max-height: unset;
        text-align: center
    }
}