.banner {
    position: relative;
    width: 100%
}

.banner .banner-swiper {
    width: 100%
}

.banner .banner-swiper .swiper-wrapper {
    width: 100%
}

.banner .banner-swiper .swiper-wrapper .swiper-slide {
    width: 100%
}

.banner .banner-swiper .swiper-wrapper .swiper-slide .banner-bg {
    width: 100%
}

.banner .banner-content {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    height: 100%;
    padding: 21% 20px 0;
    z-index: 3
}

.banner .banner-content .banner-cn {
    font-size: 36px;
    font-weight: 300;
    color: #2f5c51;
    line-height: 38px
}

.banner .banner-content .banner-en {
    margin-top: 50px;
    font-size: 48px;
    font-weight: bold;
    color: #285e54;
    line-height: 60px;
    text-transform: uppercase
}

.banner .banner-content .banner-text {
    margin-top: 16px;
    font-size: 18px;
    font-weight: 400;
    color: #f19684;
    line-height: 20px
}

.banner .banner-shadow {
    position: absolute;
    bottom: -295px;
    left: 0;
    width: 35.9375%;
    z-index: 2
}

.intro {
    position: relative;
    width: 100%;
    padding-top: 64px
}

.intro .intro-top {
    display: flex;
    justify-content: space-between;
    width: 1030px;
    margin: 0 auto
}

.intro .intro-top .intro-top-item {
    display: flex;
    align-items: flex-end
}

.intro .intro-top .intro-top-item .intro-top-text {
    font-size: 16px;
    font-weight: 400;
    color: #666;
    line-height: 18px;
    margin-bottom: 10px
}

.intro .intro-top .intro-top-item .intro-top-number {
    font-size: 110px;
    font-weight: bold;
    color: #2a6d6b;
    line-height: 84px;
    margin: 0 5px
}

.intro .intro-bottom {
    display: flex;
    align-items: center;
    width: 1364px;
    margin: 128px auto 0
}

.intro .intro-bottom .intro-img {
    width: 695px;
    height: 559px;
    background-repeat: no-repeat;
    background-size: cover
}

.intro .intro-bottom .intro-content {
    margin-left: -11px
}

.intro .intro-bottom .intro-content .intro-title {
    font-size: 24px;
    font-weight: bold;
    color: #2a6d6b;
    line-height: 26px
}

.intro .intro-bottom .intro-content .intro-text {
    width: 546px;
    margin-top: 62px;
    font-size: 14px;
    font-weight: 400;
    color: #86898b;
    line-height: 30px
}

.intro .intro-bottom .intro-content .intro-more {
    display: flex;
    align-items: center;
    margin-top: 60px
}

.intro .intro-bottom .intro-content .intro-more .intro-more-text {
    font-size: 14px;
    font-weight: bold;
    color: #2a6d6b;
    line-height: 16px
}

.intro .intro-bottom .intro-content .intro-more .intro-more-arrow {
    width: 20px;
    height: 13px;
    margin-left: 6px
}

.course {
    position: relative;
    width: 100%;
    margin-top: 140px
}

.course .course-shadow {
    position: absolute;
    top: -230px;
    left: 0;
    width: 493px;
    z-index: -1
}

.course .course-container .course-box {
    position: relative;
    width: 926px;
    margin-top: -5px;
    margin-left: 100px
}

.course .course-container .course-box .course-img {
    width: 100%
}

.course .course-container .course-box .course-item {
    position: absolute;
    top: 295px;
    left: -88px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 372px;
    height: 300px;
    background-color: #e6d1e7;
    border-radius: 20px;
    padding: 0 39px
}

.course .course-container .course-box .course-item .course-item-border {
    position: absolute;
    top: 11px;
    left: -9px;
    width: 370px;
    height: 300px;
    border: 1px solid #f3b8f3;
    border-radius: 20px;
    z-index: -1
}

.course .course-container .course-box .course-item .course-item-title {
    font-size: 30px;
    font-weight: bold;
    color: #2a6d6b;
    line-height: 32px
}

.course .course-container .course-box .course-item .course-item-text {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-top: 20px;
    font-size: 14px;
    font-weight: 400;
    color: #666;
    line-height: 26px
}

.course .course-container .course-box .course-item .course-item-text .course-item-texts {
    margin-top: 18px
}

.course .course-container .course-box .course-item .course-more {
    display: flex;
    align-items: center;
    margin-top: 35px
}

.course .course-container .course-box .course-item .course-more .more-text {
    font-size: 14px;
    font-weight: bold;
    color: #2a6d6b;
    line-height: 16px
}

.course .course-container .course-box .course-item .course-more .more-arrow {
    width: 20px;
    height: 13px;
    margin-left: 6px
}

.course .course-container .course-box .course-item .course-item-video {
    display: flex;
    align-items: center;
    margin-top: 35px;
    cursor: pointer
}

.course .course-container .course-box .course-item .course-item-video .course-item-icon {
    width: 23px;
    height: 23px
}

.course .course-container .course-box .course-item .course-item-video .course-item-videos {
    margin-left: 8px;
    font-size: 14px;
    font-weight: bold;
    color: #2a6d6b;
    line-height: 16px
}

.course .course-container .course-box .course-item .course-item-video.three {
    margin-top: 48px
}

.course .course-container .course-box .course-item.two {
    top: 153px;
    left: auto;
    right: -111px;
    background-color: #defdfa
}

.course .course-container .course-box .course-item.two .course-item-border {
    left: auto;
    right: -9px;
    border: 1px solid #97e8e0
}

.course .course-container .course-box .course-item.three {
    top: auto;
    left: auto;
    bottom: -42px;
    right: -145px;
    background-color: #fcf4cd
}

.course .course-container .course-box .course-item.three .course-item-border {
    left: auto;
    right: -9px;
    border: 1px solid #f3e094
}

.teacher {
    position: relative;
    width: 100%;
    margin-top: 127px
}

.teacher .teacher-shadow1 {
    position: absolute;
    top: -461px;
    right: 0;
    width: 315px;
    z-index: -1
}

.teacher .teacher-shadow2 {
    position: absolute;
    top: 197px;
    left: 0;
    width: 555px;
    z-index: -1
}

.teacher .teacher-container .teacher-box {
    display: flex;
    width: 1337px;
    margin: 88px auto 0
}

.teacher .teacher-container .teacher-box .teacher-left {
    position: relative;
    width: 523px;
    height: 716px
}

.teacher .teacher-container .teacher-box .teacher-left .teacher-left-img {
    width: 100%;
    height: 100%
}

.teacher .teacher-container .teacher-box .teacher-left .teacher-left-bg {
    position: absolute;
    bottom: 0;
    left: -83px;
    width: 756px;
    height: 497px;
    background-repeat: no-repeat;
    background-size: cover;
    z-index: -1
}

.teacher .teacher-container .teacher-box .teacher-left .teacher-left-bg .teacher-left-count {
    position: absolute;
    bottom: 163px;
    left: -15px;
    width: 76px;
    height: 76px;
    background: #f19684;
    box-shadow: 0 18px 32px 0 rgba(188, 85, 64, 0.18);
    border-radius: 50%
}

.teacher .teacher-container .teacher-box .teacher-left .teacher-left-bg .teacher-left-counts {
    position: absolute;
    bottom: 95px;
    left: 28px;
    width: 25px;
    height: 25px;
    background: #2a6d6b;
    border-radius: 50%
}

.teacher .teacher-container .teacher-box .teacher-right {
    width: 607px;
    padding-top: 122px;
    margin-left: 124px
}

.teacher .teacher-container .teacher-box .teacher-right .teacher-name {
    font-size: 24px;
    font-weight: bold;
    color: #2a6d6b;
    line-height: 26px
}

.teacher .teacher-container .teacher-box .teacher-right .teacher-video {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    margin-top: 10px;
    cursor: pointer
}

.teacher .teacher-container .teacher-box .teacher-right .teacher-video .teacher-video-icon {
    width: 23px;
    height: 23px
}

.teacher .teacher-container .teacher-box .teacher-right .teacher-video .teacher-video-text {
    margin-left: 7px;
    font-size: 14px;
    font-weight: bold;
    color: #2a6d6b;
    line-height: 16px
}

.teacher .teacher-container .teacher-box .teacher-right .teacher-text {
    margin-top: 40px;
    font-size: 14px;
    font-weight: 400;
    color: #86898b;
    line-height: 36px
}

.teacher .teacher-container .teacher-box .teacher-right .teacher-swiper {
    width: 100%;
    margin-top: 76px
}

.teacher .teacher-container .teacher-box .teacher-right .teacher-swiper .swiper-wrapper {
    width: 100%
}

.teacher .teacher-container .teacher-box .teacher-right .teacher-swiper .swiper-wrapper .swiper-slide {
    width: 246px;
    height: 155px;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center
}

.teacher .teacher-container .teacher-box .teacher-right .teacher-swiper-button {
    display: flex;
    width: 100%;
    margin-top: 84px
}

.teacher .teacher-container .teacher-box .teacher-right .teacher-swiper-button .swiper-button-prev {
    position: relative;
    right: auto;
    left: auto;
    top: auto;
    bottom: auto;
    width: 40px;
    height: 19px;
    background-image: url(../image/arrow-left1.png);
    background-repeat: no-repeat;
    background-size: cover;
    margin-top: 0
}

.teacher .teacher-container .teacher-box .teacher-right .teacher-swiper-button .swiper-button-prev:hover {
    background-image: url(../image/arrow-lefts.png)
}

.teacher .teacher-container .teacher-box .teacher-right .teacher-swiper-button .swiper-button-prev::after {
    display: none
}

.teacher .teacher-container .teacher-box .teacher-right .teacher-swiper-button .swiper-button-next {
    position: relative;
    right: auto;
    left: auto;
    top: auto;
    bottom: auto;
    width: 40px;
    height: 19px;
    background-image: url(../image/arrow-right1.png);
    background-repeat: no-repeat;
    background-size: cover;
    margin-top: 0;
    margin-left: 40px
}

.teacher .teacher-container .teacher-box .teacher-right .teacher-swiper-button .swiper-button-next:hover {
    background-image: url(../image/arrow-rights.png)
}

.teacher .teacher-container .teacher-box .teacher-right .teacher-swiper-button .swiper-button-next::after {
    display: none
}

.news {
    position: relative;
    width: 100%;
    margin-top: 370px
}

.news .news-shadow {
    position: absolute;
    top: -260px;
    right: 0;
    width: 648px;
    z-index: -1
}

.news .news-container {
    display: flex
}

.news .news-container .news-left .news-text {
    width: 395px;
    margin-top: 67px;
    font-size: 14px;
    font-weight: 400;
    color: #86898b;
    line-height: 24px
}

.news .news-container .news-left .news-more {
    display: flex;
    align-items: center;
    margin-top: 50px
}

.news .news-container .news-left .news-more .news-more-text {
    font-size: 14px;
    font-weight: bold;
    color: #2a6d6b;
    line-height: 16px
}

.news .news-container .news-left .news-more .news-more-icon {
    width: 20px;
    height: 13px;
    margin-left: 7px
}

.news .news-container .news-right {
    margin-left: 158px;
    margin-top: -83px
}

.news .news-container .news-right .news-item {
    position: relative;
    display: flex;
    align-items: center;
    width: 520px;
    height: 179px;
    background-color: #fff;
    padding: 0 40px 0 16px
}

.news .news-container .news-right .news-item .news-item-left {
    width: 0;
    height: 159px;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center;
    transition: all .3s
}

.news .news-container .news-right .news-item .news-item-right {
    flex: 1;
    margin-left: 34px
}

.news .news-container .news-right .news-item .news-item-right .news-item-title {
    font-size: 18px;
    font-weight: bold;
    color: #2a6d6b;
    line-height: 20px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
    overflow: hidden
}

.news .news-container .news-right .news-item .news-item-right .news-item-text {
    margin-top: 15px;
    font-size: 14px;
    font-weight: 400;
    color: #86898b;
    line-height: 24px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden
}

.news .news-container .news-right .news-item .news-item-right .news-item-bottom {
    display: flex;
    justify-content: flex-end;
    padding-right: 28px
}

.news .news-container .news-right .news-item .news-item-right .news-item-bottom .news-item-arrow {
    width: 20px;
    height: 13px;
    opacity: 0;
    transition: all .3s
}

.news .news-container .news-right .news-item .news-item-shadow {
    position: absolute;
    z-index: -1
}

.news .news-container .news-right .news-item:hover .news-item-left {
    width: 119px
}

.news .news-container .news-right .news-item:hover .news-item-right .news-item-bottom .news-item-arrow {
    opacity: 1
}

.news .news-container .news-right .news-item.one {
    margin-left: 105px
}

.news .news-container .news-right .news-item.one .news-item-shadow {
    top: 65px;
    left: -65px;
    width: 565px;
    height: 162px
}

.news .news-container .news-right .news-item.two {
    margin-top: 61px
}

.news .news-container .news-right .news-item.two .news-item-shadow {
    top: 51px;
    left: -27px;
    width: 593px;
    height: 190px
}

.idea {
    width: 100%;
    margin-top: 251px;
    margin-bottom: 57px
}

.idea .idea-container .idea-box {
    /* display: flex;
    justify-content: flex-end;
    align-items: center; */
    width: 100%;
    margin-top: 105px
}

.idea .idea-container .idea-box .idea-left {
    width: 666px
}

.idea .idea-container .idea-box .idea-right {
    margin-top: 84px;
    margin-left: 53px;
    width: 1049px
}

.intro-fix {
    position: fixed;
    top: 100px;
    right: 0;
    z-index: 10
}

.intro-fix .intro-fix-icon {
    width: 68px
}

.intro-fix .intro-fix-img {
    position: absolute;
    top: 67px;
    right: 8px;
    display: none;
    width: 195px
}

.intro-fix:hover .intro-fix-img {
    display: block
}

.video-mask {
    position: fixed;
    left: 0;
    top: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 100
}

.video-mask .item-video {
    width: 70%
}

.video-mask.hide {
    display: none
}

@media screen and (max-width:1440px) {
    .banner .banner-shadow {
        bottom: -220px
    }

    .intro {
        padding-top: 50px
    }

    .intro .intro-top {
        transform: scale(.8);
        transform-origin: top center
    }

    .intro .intro-bottom {
        transform: scale(.8);
        transform-origin: top center;
        margin: 70px auto 0
    }

    .course {
        margin-top: 0
    }

    .course .course-shadow {
        top: -150px;
        width: 338px
    }

    .course .course-container {
        transform: scale(.8);
        transform-origin: top center
    }

    .teacher {
        margin-top: 0
    }

    .teacher .teacher-shadow1 {
        top: -300px;
        width: 200px
    }

    .teacher .teacher-shadow2 {
        top: 170px;
        width: 388px
    }

    .teacher .teacher-container {
        transform: scale(.8);
        transform-origin: top center
    }

    .news {
        margin-top: 80px
    }

    .news .news-shadow {
        top: -170px;
        width: 400px
    }

    .news .news-container {
        transform: scale(.8);
        transform-origin: top center
    }

    .idea {
        margin-top: 100px
    }

    .idea .idea-container .page-content {
        transform: scale(.8);
        transform-origin: top center
    }

    .idea .idea-container .idea-box {
        margin-top: 50px
    }

    .idea .idea-container .idea-box .idea-left {
        width: 485px
    }

    .idea .idea-container .idea-box .idea-right {
        width: 800px;
        margin-left: 40px
    }

    .intro-fix .intro-fix-icon {
        width: 50px
    }

    .intro-fix .intro-fix-img {
        top: 52px;
        width: 140px
    }
}