.banner {
    position: relative;
}

.banner .banner_content {
    position: relative;

}

.banner .banner_1 {
    position: absolute;
    width: 80%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 99;
}

.banner .banner_1 h2 {
    font-size: 65px;
    font-family: Alibaba PuHuiTi;
    font-weight: bold;
    color: #FFFFFF;
    text-shadow: 0px 3px 15px rgba(47, 80, 159, 0.17);
    line-height: 104px;
    letter-spacing: 6px;
}

.banner .banner_1 p {
    font-size: 24px;
    font-family: Arial;
    font-weight: 400;
    color: #FFFFFF;
    line-height: 40px;
    text-shadow: 0px 3px 15px rgba(47, 80, 159, 0.17);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 20px;
}


.banner .banner_2 .banner_1 {
    top: 70%;
}

.banner .banner_3 .banner_1 {
    top: 45%;
}

.banner .banner_4 .banner_1 {
    top: 49%;
    left: 49%;
}

.banner .banner_content img,
.banner .banner_2_img {
    height: 100vh;
}


.banner .banner_2 {
    position: relative;
    height: 100vh;
    width: 100%;
}

.banner .banner_2 .banner2_po1 {
    position: absolute;
    top: 42%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 9;
    width: 100%;
    text-align: center;
}

.banner .banner_2 .banner2_po1.po2 {
    opacity: 0;
    z-index: 10;
    animation: hideShow 2s linear infinite;
}





@keyframes hideShow {

    0% {
        opacity: 1;
    }

    50% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }

}

.banner .banner_2 .banner2_po1 img {
    width: auto;
}



.banner .swiper-slide .banner_3 {
    position: relative;
    height: 100vh;
    width: 100%;
}

.banner .swiper-slide .banner_3 .banner_3_po {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9;

}

.banner .swiper-slide-active .banner_3 .banner_3_po {
    /* 1、设置动画名称 */
    animation-name: banner_3_hide;
    /* 2、动画持续时间 */
    animation-duration: 5s;
    /* 3、动画执行速度 */
    animation-timing-function: linear;
    /* 4、等待时长 */
    animation-delay: 1s;
    /* 5、设置动画播放次数 */
    animation-iteration-count: 1;
    /* 6、设置动画是否反向播放
    animation-direction: alternate; */
    /* 7、动画结束时应用最后一帧 */
    animation-fill-mode: forwards;
}


@keyframes banner_3_hide {

    0% {
        opacity: 1;
        left: 0;
        transform: scale(1);
    }

    /* 50% {
        opacity: 0;
        left: -1000%;
        transform: scale(30);
    } */

    100% {
        opacity: 0;
        left: -1000%;
        transform: scale(30);
    }

}


.banner .swiper-button-next,
.banner .swiper-button-prev {
    width: 64px;
    height: 64px;
    margin-top: -32px;
    background-size: 64px 64px !important;

}

.banner .swiper-button-next::after,
.banner .swiper-button-prev::after {
    display: none;
}

.banner .swiper-button-prev {
    left: 23px;
    background: url(../images/welcome/arrow-1.png) no-repeat;
}

.banner .swiper-button-prev:hover {
    background: url(../images/welcome/arrow-1-1.png) no-repeat;
}

.banner .swiper-button-next {
    right: 23px;
    background: url(../images/welcome/arrow-2.png) no-repeat;
}

.banner .swiper-button-next:hover {
    background: url(../images/welcome/arrow-2-1.png) no-repeat;
}

.banner .swiper-pagination {
    width: auto !important;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: flex-end;
    left: auto !important;
    right: 100px;
    bottom: 30px !important;
}

.banner .swiper-pagination-bullet {
    margin: 8px 0 !important;
    background: #FFFFFF;
    opacity: 0.8;
}

.banner .swiper-pagination-bullet-active {
    width: 41px;
    height: 16px;
    background: url(../images/welcome/banner-icon.png) no-repeat;
    background-size: 41px 16px;
    opacity: 1;
}


.welcome_news {
    position: relative;
    width: 100%;
    background: url(../images/welcome/news/news-bg.jpg) no-repeat;
    background-size: cover;
}

.welcome_news .news_content {
    padding: 80px 0 65px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.welcome_news .news_content .news_top {
    width: 100%;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    position: relative;
    overflow: hidden;
}

.welcome_news .news_content .news_top .news_aircraft {
    width: 80%;
    position: relative;
    height: 195px;
}

.welcome_news .news_content .news_top .news_aircraft img {
    position: absolute;
    left: 0;
    top: 0;
    width: 195px;
}

.welcome_name {
    font-size: 50px;
    font-family: Microsoft YaHei;
    font-weight: bold;
    color: #000000;
    line-height: 1;
    padding-bottom: 30px;
    position: relative;
}

.welcome_name::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 52px;
    height: 7px;
    background-size: 52px 7px !important;
    background: url(../images/welcome/news/news-7.jpg) no-repeat;
}

.welcome_news .news_content .news_row {
    display: flex;
    flex-direction: row;
    width: 100%;
    justify-content: space-between;
    margin-top: 50px;
}

.welcome_news .news_content .news_row .news_swiper {
    width: 54%;
    position: relative;
}

.welcome_news .news_content .news_row .news_swiper .swiper-container {
    height: 100%;
}

.welcome_news .news_content .news_row .news_swiper .swiper_content {
    position: relative;
    width: 100%;
    height: 100%;
    display: inline-block;
}

.welcome_news .news_content .news_row .news_swiper .swiper_content img {
    width: 100%;
    height: 100%;
}

.welcome_news .news_content .news_row .news_swiper .swiper_content .swiper_po1 {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    background: url(../images/welcome/news-1.png) no-repeat bottom;
    background-size: cover;
}

.welcome_news .news_content .news_row .news_swiper .swiper_content .po_content {
    position: absolute;
    bottom: 10px;
    left: 0;
    width: 100%;
    z-index: 9;
    padding: 44px 50px;
    display: flex;
    flex-direction: column;
}

.welcome_news .news_content .news_row .news_swiper .swiper_content .po_content p {
    font-size: 18px;
    font-family: Arial;
    font-weight: 400;
    color: #FFFFFF;
    margin-bottom: 20px;
}

.welcome_news .news_content .news_row .news_swiper .swiper_content .po_content h2 {
    font-size: 30px;
    font-family: Microsoft YaHei;
    font-weight: bold;
    color: #FFFFFF;
    line-height: 36px;
}

.welcome_news .news_content .news_row .news_swiper .swiper-pagination {
    width: auto !important;
    bottom: 20px !important;
    right: 30px !important;
    left: auto !important;
}

.welcome_news .news_content .news_row .news_swiper .swiper-pagination .swiper-pagination-bullet {
    width: 49px;
    height: 3px;
    background: #FFFFFF;
    border-radius: 0;
}


.welcome_news .news_content .news_row .news_column {
    width: 45%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.welcome_news .news_content .news_row .news_column .column_content {
    margin-bottom: 20px;
    display: flex;
    flex-direction: row;
    width: 100%;
    justify-content: space-between;
    align-items: center;
}

.welcome_news .news_content .news_row .news_column .column_content:last-child {
    margin-bottom: 0;
}

.welcome_news .news_content .news_row .news_column .column_content .pic {
    width: 28%;
    overflow: hidden;
}

.welcome_news .news_content .news_row .news_column .column_content .pic img {
    transition: .5s;
    width: 100%;
}

.welcome_news .news_content .news_row .news_column .column_content:hover .pic img {
    transform: scale(1.05);
    -moz-transform: scale(1.05);
    -webkit-transform: scale(1.05);
}


.welcome_news .news_content .news_row .news_column .column_content .column_min {
    width: 68%;
    display: flex;
    flex-direction: column;
}

.welcome_news .news_content .news_row .news_column .column_content .column_min p {
    font-size: 18px;
    font-family: Arial;
    font-weight: 400;
    color: #666666;
    margin-bottom: 10px;
}

.welcome_news .news_content .news_row .news_column .column_content .column_min h2 {
    font-size: 22px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #333333;
    width: 100%;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.welcome_news .news_content .news_but {
    margin-top: 60px;
    border-radius: 35px;
    display: flex;
    flex-direction: row;
    height: 70px;
    justify-content: center;
    align-items: center;
    background: #2F509F;
}


.welcome_news .news_content .news_but p {
    font-size: 16px;
    font-family: Microsoft YaHei;
    font-weight: bold;
    color: #FFFFFF;
    margin: 0 20px 0 25px;
}

.welcome_news .news_content .news_but .pic {
    width: 55px;
    height: 55px;
    background: #FFFFFF;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 8px;
    overflow: hidden;
}

.welcome_news .news_content .news_but .pic img {
    width: 40px;

}

.welcome_news .news_content .news_but:hover .pic img {
    animation: fly 3s ease-in-out;
    animation-iteration-count: infinite;
}

@keyframes fly {

    0% {

        transform: translate(0, 0);

    }

    100% {

        transform: translate(40px, -40px);

    }

}

.corporate_culture {
    background: #184299 url(../images/welcome/culture/bg-1.jpg) no-repeat bottom;
    background-size: cover;
    width: 100%;
    position: relative;
    overflow: hidden;
}

.corporate_culture .culture_content {
    padding-top: 90px;
    width: 100%;
    display: flex;
    flex-direction: column;
}

.corporate_culture .culture_content .welcome_name {
    color: #FFFFFF;
}

.corporate_culture .culture_content .content_name {
    display: flex;
    flex-direction: column;
    width: 100%;
    margin: 60px 0 40px;
    align-items: flex-start;
}

.corporate_culture .culture_content .content_name h4 {
    padding-left: 58px;
    font-size: 30px;
    font-family: Microsoft YaHei;
    font-weight: bold;
    color: #FFFFFF;
    line-height: 45px;
    background: url(../images/welcome/culture/culture-1.png) no-repeat left center;
    background-size: 39px 45px;
}

.corporate_culture .culture_content .content_name h2 {
    font-size: 72px;
    font-family: Alibaba PuHuiTi;
    font-weight: bold;
    color: #FFFFFF;
    text-shadow: 0px 3px 68px rgba(91, 139, 164, 0.51);
}

.corporate_culture .culture_content .content_aircraft {
    position: relative;
    width: 100%;
    height: 300px;

}

.corporate_culture .culture_content .content_aircraft img {
    position: absolute;
    top: 0;
    left: 0;
    width: 1308px;
}

.corporate_culture .culture_wrap {
    margin-top: 100px;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    width: 100%;
    justify-content: flex-start;
}

.corporate_culture .culture_wrap .culture_min {
    width: calc(100%/3);
    padding: 40px 70px;
    display: flex;
    flex-direction: column;
}

.corporate_culture .culture_wrap .culture_min:nth-of-type(1) {
    background: rgb(64, 185, 177, 0.7);
}

.corporate_culture .culture_wrap .culture_min:nth-of-type(2) {
    background: rgb(46, 80, 158, 0.5)
}

.corporate_culture .culture_wrap .culture_min:nth-of-type(3) {
    background: rgb(47, 80, 159, 0.35);
}

.corporate_culture .culture_wrap .culture_min .min_name {
    padding-left: 68px;
    font-size: 30px;
    font-family: Microsoft YaHei;
    font-weight: bold;
    color: #FFFFFF;
    line-height: 50px;
    margin-bottom: 15px;
}

.corporate_culture .culture_wrap .culture_min .culture_1 {
    background: url(../images/welcome/culture/culture-2.png) no-repeat left center;
    background-size: 42px 36px;
}

.corporate_culture .culture_wrap .culture_min .culture_2 {
    background: url(../images/welcome/culture/culture-3.png) no-repeat left center;
    background-size: 47px 49px;
}

.corporate_culture .culture_wrap .culture_min .culture_3 {
    background: url(../images/welcome/culture/culture-4.png) no-repeat left center;
    background-size: 49px 39px;
}

.corporate_culture .culture_wrap .culture_min p {
    font-size: 22px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #FFFFFF;
    line-height: 40px;
}

@media (max-width: 1700px) {

    .continer1 {
        width: 90%;
    }

    .welcome_news .news_content {
        width: 100%;
    }

    .welcome_news .news_content {
        top: 190px;
    }

    .welcome_news .news_content .news_but {
        margin-top: 50px;
    }




    .banner .banner_2 .banner2_po1 img {
        width: 60%;
    }
}


@media (max-width: 1600px) {

    .banner .banner_1 h2 {
        font-size: 54px;
        line-height: 80px;
        letter-spacing: 4px;
    }

    .banner .banner_1 p {
        font-size: 20px;
        line-height: 36px;
        margin-top: 15px;
    }

    .welcome_news .news_content .news_row .news_swiper .swiper_content .po_content p {
        font-size: 16px;
        margin-bottom: 15px;
    }

    .welcome_news .news_content .news_row .news_swiper .swiper_content .po_content h2 {
        font-size: 25px;
    }

    .welcome_news .news_content .news_row .news_column .column_content .column_min p {
        font-size: 16px;
        margin-bottom: 5px;
    }

    .welcome_news .news_content .news_row .news_column .column_content .column_min h2 {
        font-size: 20px;
    }



    .banner .swiper-button-next,
    .banner .swiper-button-prev {
        width: 58px;
        height: 58px;
        margin-top: -29px;
        background-size: 58px 58px !important;
    }



    .welcome_name {
        font-size: 40px;
    }

    .welcome_news .news_content .news_top .news_aircraft {
        height: 110px;
    }

    .welcome_news .news_content .news_top .news_aircraft img {
        width: 150px;
    }

    .corporate_culture .culture_content .content_name h4 {
        padding-left: 43px;
        font-size: 24px;
        line-height: 40px;
        background-size: 30px 34px;
    }

    .corporate_culture .culture_content .content_name h2 {
        font-size: 60px;
    }

    .corporate_culture .culture_content .content_aircraft {
        height: 260px;
    }

    .corporate_culture .culture_content .content_aircraft img {
        width: 1200px;
    }

    .corporate_culture .culture_wrap .culture_min .min_name {
        padding-left: 64px;
        font-size: 26px;
    }

    .corporate_culture .culture_wrap .culture_min p {
        font-size: 20px;
        line-height: 36px;
    }
}


@media (max-width: 1500px) {
    .banner .banner_1 h2 {
        font-size: 46px;
        line-height: 72px;
    }

    .banner .banner_1 p {
        font-size: 18px;
    }

    .welcome_news .news_content .news_row .news_column .column_content .column_min p {
        font-size: 14px;
    }

    .welcome_news .news_content .news_row .news_column .column_content .column_min h2 {
        font-size: 16px;
    }







    .welcome_name {
        font-size: 36px;
    }

    .welcome_name::after {
        width: 42px;
        height: 5px;
        background-size: 42px 5px !important;
    }

    .corporate_culture .culture_content .content_name h2 {
        font-size: 50px;
    }


    .banner .swiper-button-next,
    .banner .swiper-button-prev {
        width: 50px;
        height: 50px;
        margin-top: -10px;
        background-size: 50px 50px !important;
    }
}

@media (max-width: 1280px) {

    .banner .banner_content img,
    .banner .banner_2,
    .banner .banner_content img,
    .banner .banner_2_img,
    .banner .swiper-slide .banner_3 {
        height: auto;
    }

    .welcome_news .news_content {
        top: 140px;
    }
}


@media (max-width: 992px) {
    .banner .banner_1 h2 {
        font-size: 24px;
        line-height: 33px;
        letter-spacing: 3px;
    }

    .banner .banner_1 p {
        font-size: 14px;
        line-height: 25px;
        margin-top: 10px;
    }

    .banner {
        padding-top: 80px;
    }

    .banner .swiper-button-next,
    .banner .swiper-button-prev {
        width: 40px;
        height: 40px;
        margin-top: 2%;
        background-size: 40px 40px !important;
    }

    .banner .swiper-pagination {
        right: 50px;
        bottom: 10px !important;
    }

    .banner .swiper-pagination-bullet {
        margin: 5px 0 !important;
        width: 6px;
        height: 6px;
    }

    .banner .swiper-pagination-bullet-active {
        width: 41px !important;
        height: 16px !important;
    }

    .welcome_news .news_content {
        top: 110px;
    }

    .welcome_news .news_content .news_row .news_swiper .swiper-pagination .swiper-pagination-bullet {
        width: 25px;
        height: 2px;
    }

    .welcome_news .news_content .news_row .news_swiper .swiper-pagination {
        bottom: 7px !important;
        right: 10px !important;
    }


    .welcome_news .news_content .news_row .news_swiper .swiper_content .po_content {
        padding: 24px 30px;
        bottom: 0;
    }

    .welcome_news .news_content .news_row .news_swiper .swiper_content .po_content p {
        font-size: 16px;
        margin-bottom: 10px;
    }

    .welcome_news .news_content .news_row .news_swiper .swiper_content .po_content h2 {
        font-size: 20px;
        line-height: 30px;
    }


    .welcome_news .news_content .news_row .news_column .column_content .pic {
        width: 37%;
    }

    .welcome_news .news_content .news_row .news_column .column_content .column_min {
        width: 57%;
    }


    .welcome_news .news_content {
        padding: 60px 0 45px;
    }






    .welcome_name {
        font-size: 28px;
        padding-bottom: 25px;
    }

    .welcome_name::after {
        width: 30px;
        height: 4px;
        background-size: 30px 4px !important;
    }

    .welcome_news .news_content .news_top .news_aircraft img {
        width: 100px;
    }

    .welcome_news .news_content .news_top .news_aircraft {
        height: 75px;
    }


    .welcome_news .news_content .news_row {
        flex-direction: column;
        margin-top: 30px;
    }

    .welcome_news .news_content .news_row .news_swiper {
        width: 100%;
    }

    .welcome_news .news_content .news_row .news_column {
        width: 100%;
        margin-top: 30px;
    }


    .welcome_news .news_content .news_but {
        height: 50px;
    }

    .welcome_news .news_content .news_but p {
        font-size: 14px;
        margin: 0 15px 0 20px;
    }

    .welcome_news .news_content .news_but .pic {
        width: 42px;
        height: 42px;
        margin-right: 5px;
    }

    .welcome_news .news_content .news_but .pic img {
        width: 27px;
    }

    .corporate_culture .culture_content {
        padding-top: 60px;
    }

    .corporate_culture .culture_content .content_name {
        margin: 40px 0 20px;
    }

    .corporate_culture .culture_content .content_name h4 {
        padding-left: 36px;
        font-size: 20px;
        line-height: 30px;
        background-size: 25px 28px;
        margin-bottom: 10px;
    }

    .corporate_culture .culture_content .content_name h2 {
        font-size: 33px;
    }

    .corporate_culture .culture_content .content_aircraft {
        height: 170px;
    }

    .corporate_culture .culture_wrap {
        margin-top: 30px;
    }

    .corporate_culture .culture_wrap .culture_min {
        padding: 20px 20px;
    }

    .corporate_culture .culture_wrap .culture_min .min_name {
        padding-left: 50px;
        font-size: 20px;
        line-height: 40px;
    }

    .corporate_culture .culture_wrap .culture_min .culture_1 {
        background-size: 32px 26px;
    }

    .corporate_culture .culture_wrap .culture_min .culture_2 {
        background-size: 37px 38px;
    }

    .corporate_culture .culture_wrap .culture_min .culture_3 {
        background-size: 39px 31px;
    }

    .corporate_culture .culture_wrap .culture_min p {
        font-size: 16px;
        line-height: 28px;
    }
}


@media (max-width: 600px) {
    .banner .banner_1 h2 {
        font-size: 12px;
        line-height: 17px;
        letter-spacing: 2px;
    }

    .banner .banner_1 p {
        font-size: 12px;
        line-height: 15px;
        margin-top: 8px;
    }

    .g-container {
        width: 100%;
        overflow: hidden;
    }

    .banner {
        padding-top: 64px;
    }

    .banner .swiper-button-next,
    .banner .swiper-button-prev {
        width: 30px;
        height: 30px;
        background-size: 30px 30px !important;
    }

    .banner .swiper-button-prev {
        left: 1%;
    }

    .banner .swiper-button-next {
        right: 1%;
    }

    .banner .swiper-pagination {
        right: 25px;
    }






    .welcome_news .news_content {
        padding: 40px 0 35px;
    }

    .welcome_news .news_content .news_top .news_aircraft {
        width: 65%;
    }

    .welcome_name {
        font-size: 21px;
        padding-bottom: 20px;
    }

    .welcome_news .news_content .news_row .news_swiper .swiper_content .po_content p {
        font-size: 14px;
        margin-bottom: 5px;
    }

    .welcome_news .news_content .news_row .news_swiper .swiper_content .po_content h2 {
        font-size: 16px;
        line-height: 22px;
    }

    .corporate_culture .culture_content {
        padding-top: 40px;
    }

    .corporate_culture .culture_content .content_name h2 {
        font-size: 22px;
    }

    .corporate_culture .culture_content .content_aircraft {
        height: 90px;
    }

    .corporate_culture .culture_wrap .culture_min {
        width: 100%;
    }

    .corporate_culture .culture_wrap .culture_min .min_name {
        padding-left: 48px;
        font-size: 18px;
        margin-bottom: 10px;
    }

}