.welcome_video {
    min-width: 1200px;
    width: 100%;
    position: relative;
}

.welcome_video .video {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.welcome_video .video-box,
.welcome_video .focus-box {
    height: 100vh;
    z-index: 9;
    overflow: hidden;
    width: 100%;
    min-width: 1200px
}

.intro-container {
    box-sizing: border-box;
    position: absolute;
    padding: 50px 100px;
    z-index: 99;
    bottom: 30%
}

.welcome_video .intro-h1 {
    font-weight: 700;
    font-size: 60px;
    color: #FFFFFF;
    margin: 0 auto;
}

.welcome_video .intro-h4 {
    font-size: 30px;
    color: #FFFFFF;
    margin-top: 15px;
}

.welcome_video .description-text {
    text-align: center;
    margin-bottom: 150px
}

.welcome_video .description-text .title {
    font-size: 60px;
    font-weight: 700;
}

.welcome_video .description-text .des {
    font-size: 28px;
    margin-top: 15px
}

.main-search-inner {
    position: relative;
    display: block;
    top: 0;
    height: 100vh;
    transform: none;
    padding-bottom: 310px;
    padding-top: 150px;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: 50%;
}

/* Video */

.video-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -10;
    overflow: hidden;
}

.video-container video {
    top: 0;
    transform: translateY(-23%);
    left: 0;
    min-width: 100%;
    min-height: 100%;
    width: 100%;
    height: auto;
    z-index: -10;
    background-size: cover;
    transition: 1s opacity;
    position: absolute;
}

.evente-commerce-wrap-box1 {
    padding: 80px 0;
    overflow: hidden;
    background-color: #fff
}

.evente-commerce-wrap-box1-tit {
    font-size: 36px;
    color: #383838;
    font-family: 'TencentSansw7';
    letter-spacing: 0;
    text-align: center;
    margin-left: 5px;
    position: relative;
    font-weight: 500;
}

.evente-commerce-wrap-box1-txt {
    font-size: 18px;
    color: #666;
    letter-spacing: 0;
    text-align: center;
    line-height: 22px;
    margin: 15px 0 60px 5px
}

.product-item {
    padding: 0 60px;
    margin: 0 auto;
    position: relative;
    align-items: center;
    display: flex;
    justify-content: space-between
}

.flex-direction {
    flex-direction: row-reverse;
}

.product-item .product_description {
    box-sizing: border-box;
    width: 55%;
    height: 100%
}

.product-item .product_description .description-title {
    line-height: 45px;
    font-size: 32px;
    color: #333;
    font-weight: 500
}

.product-item .description-detail {
    line-height: 25px;
    font-size: 18px;
    color: #FFFFFF;
    font-weight: 400;
    margin-top: 16px
}

.product-item .description-img {
    height: 480px;
    width: auto
}

.product-images {
    width: 58%;
    opacity: 1;
    transform: translate(0px, 0px);
}

.product-images img {
    width: 100%
}

.product-item .m-35 {
    width: 38%
}

.product-item-tit {
    margin-bottom: 10px;
    color: #FFFFFF;
    font-weight: 600;
    margin-left: 20px;
    font-size: 20px;
    line-height: 28px
}

.product-item-li-t {
    color: #1f2329;
    font-weight: 500;
    font-family: 'TencentSansw7';
    margin-left: 20px;
    font-size: 36px;
    line-height: 48px
}

.product-item-li {
    margin-bottom: 30px;
    display: flex;
    width: 46%;
    float: left;
}

.product-item-li:nth-of-type(2),
.product-item-li:nth-of-type(4),
.product-item-li:nth-of-type(6),
.product-item-li:nth-of-type(8) {
    margin-left: 30px
}

.product-item-li .item-l {
    margin-left: 10px
}

.product-item-li .item-icon {
    color: #1aad19;
    font-size: 14px;
    margin-top: 10px;
    font-weight: bold
}

.product-item-li:nth-last-of-type(1) {
    margin-bottom: 32px
}

.product-item-li-title {
    color: #FFFFFF;
    font-weight: 500;
    font-size: 16px;
    line-height: 28px;
    margin-bottom: 5px
}

.product-item-li-mian {
    color: #FFFFFF;
    font-size: 14px;
    line-height: 24px
}

@media (max-width: 1200px) {
    .main-search-container video {
        width: 100%;
        height: 100%;
        object-fit: cover;
        top: 0;
        transform: none;
    }
}

.content-wrapper {
    position: absolute;
    height: auto
}

.content-wrapper h3 {
    font-size: 3.125rem;
    font-weight: 600
}

.content-wrapper p {
    font-size: 2.25rem;
    font-weight: 600
}

.no-visual {
    visibility: hidden
}

.wrapper {
    margin: 0 auto;
    padding: 0 100px
}

.m-top60 {
    margin-top: 4.75rem
}

.website-recommend_title {
    font-size: 2.375rem;
    color: rgba(54, 54, 54, 1);
    font-weight: 600
}

.website-recommend_desc {
    font-size: 1.2rem;
    color: rgba(54, 54, 54, .65);
    margin-bottom: 40px
}

.swiper-containers {
    width: 100%;
    height: 100%
}

.swiper-containers .swiper-slide {
    text-align: center;
    font-size: 1.125rem;
    background: #fff;
    height: 66vh;
    display: -webkit-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    -webkit-justify-content: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    -webkit-align-items: center;
    align-items: center;
}

.swiper-containers .slide-bg {
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    border-radius: 20px
}

.out-flex {
    display: flex;
    flex-direction: row;
    height: 66vh;
    -webkit-transition: opacity .5s linear;
    -moz-transition: opacity .5s linear;
    transition: opacity .5s linear;
    min-width: 60rem
}

.first-first {
    width: 36%;
    height: 66vh;
    border-radius: 20px;
    overflow: hidden;
    -webkit-transition: opacity 1.0s linear;
    -moz-transition: opacity 1.0s linear;
    transition: opacity 1.0s linear;
    background-image: url(../img/tishineng.jpg);
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    position: relative
}

.first-second {
    width: 30%;
    height: 66vh;
    border-radius: 20px;
    margin-left: 1.5rem;
    overflow: hidden;
    -webkit-transition: opacity .8s linear;
    -moz-transition: opacity .8s linear;
    transition: opacity .8s linear;
    background-image: url(../img/fangche.jpg);
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    position: relative
}

.first-sub {
    width: 34%;
    border-radius: 20px;
    margin-left: 1.5rem;
    overflow: hidden;
    display: -moz-box;
    display: -ms-flexbox;
    display: flex;
    -moz-box-orient: vertical;
    -moz-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column
}

.first-third {
    background-image: url(../img/yingdi.jpg);
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    height: 32vh;
    overflow: hidden;
    -webkit-transition: opacity .1s linear;
    -moz-transition: opacity .1s linear;
    transition: opacity .1s linear;
    position: relative
}

.first-fourth {
    background-image: url(../img/gongyuan.jpg);
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    margin-top: 1.5rem;
    height: 32vh;
    overflow: hidden;
    -webkit-transition: opacity .1s linear;
    -moz-transition: opacity .1s linear;
    transition: opacity .1s linear;
    position: relative
}

.first-font {
    color: #fff;
    font-weight: 600;
    font-size: 2.125rem;
    bottom: 15%;
    text-align: center;
    position: absolute;
    width: 100%
}

.first-sweper {
    color: #fff;
    font-weight: 600;
    font-size: 1.6rem;
    bottom: 12%;
    text-align: center;
    position: absolute;
    width: 100%
}

.font-16 {
    font-size: 18px
}

.f-26 {
    font-size: 1.625rem;
}

.font-14 {
    font-size: 14px;
    color: #666666;
    margin-top: 5px;
}

.lesson-category {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    -ms-flex-pack: justify;
    justify-content: space-between;
    margin: 0.9375rem auto 1rem
}

.lesson-category .cg-name {
    display: inline-block;
    width: 15%;
    height: 10.9375rem;
    margin-bottom: 1.875rem;
    border: 0.0625rem solid #f1f1f1;
    border-radius: 15px;
    background-color: #fff;
    transition: border-color .2s linear
}

.lesson-category .cg-name .cg-ch {
    margin-top: 3.125rem;
    padding: 0 1.25rem;
    text-align: center;
    font-size: 1.85rem;
    font-weight: 600;
    color: #333
}

.lesson-category .cg-name .cg-en {
    padding: 0.375rem 0px;
    text-align: center;
    font-size: 1.2rem;
    font-weight: 200;
    color: #484848
}

.family-flex {
    display: flex;
    align-items: center;
    position: absolute;
    top: 0px;
    right: 0px;
    left: 0px;
    bottom: 0px;
    z-index: 999;
    padding: 0 100px;
    justify-content: space-between;
    height: 100vh;
    width: 100%;
    -webkit-transition: opacity .5s linear;
    -moz-transition: opacity .5s linear;
    transition: opacity .5s linear;
    flex-flow: wrap;
}

.family-first {
    width: 360px;
    height: 100vh;
    -webkit-transition: opacity 1.0s linear;
    -moz-transition: opacity 1.0s linear;
    transition: opacity 1.0s linear;
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    position: absolute;
    right: 100px;
    bottom: -100px
}

.family-story {
    width: 65%;
}

.family-story h1 {
    font-size: 50px;
    color: #FFFFFF;
    font-weight: 600
}

.family-story .family-p {
    line-height: 32px;
    color: #FFFFFF;
    font-size: 20px;
    margin-top: 20px
}

.family-story .family-btn {
    background: #2f4842;
    display: inline-block;
    padding: 15px 20px;
    color: #ffffff;
    font-size: 18px;
    font-weight: 600;
    margin-top: 20px;
}

.family-font {
    color: #FFFFFF;
    font-weight: 600;
    font-size: 2.25rem;
    bottom: 13%;
    text-align: center;
    position: absolute;
    width: 60%;
    left: 0;
    right: 0;
    margin: auto
}

.family-right-bg {
    background-image: url(../img/iphone.png);
    background-position: center;
    background-size: 100%;
    background-repeat: no-repeat;
    position: absolute;
    right: 0px;
    top: 0px;
    width: 365px;
    height: 825px;
    z-index: 99;
}

.cards {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    perspective: 90px;
    margin-top: 80px
}

.cards .card {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;
    cursor: pointer
}

.cards .card .block {
    position: relative;
    width: 200px;
    height: 200px;
    transition: transform .6s;
    transform-style: preserve-3d
}

.cards .card .block .back,
.cards .card .block .front {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: center;
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 20px;
    pointer-events: none
}

.cards .card .block .back>span:first-of-type,
.cards .card .block .front>span:first-of-type {
    font-size: 14px;
    color: #fff9;
    margin-top: 15px;
    letter-spacing: 0;
    line-height: 20px;
    font-family: Arial;
    font-feature-settings: "kern" on
}

.cards .card .block .back>span:last-of-type,
.cards .card .block .front>span:last-of-type {
    color: #fff;
    font-size: 18px;
    line-height: 26px;
    font-weight: 700;
    margin-bottom: auto;
    font-family: Roboto-Medium;
    font-feature-settings: "kern" on
}

.cards .card .block .front {
    background-color: #000
}

.cards .card .block .front .icon {
    flex-shrink: 0;
    width: 47px;
    height: 47px;
    margin-top: 45px;
    color: #FFFFFF;
    text-align: center;
    font-size: 40px
}

.cards .card .block .front span:nth-child(2) {
    margin-top: 10px;
}

.cards .card .block .back {
    width: 100%;
    height: 242px;
    transform: rotateY(180deg)
}

.cards .card .block .back:after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 200px;
    background-color: #000;
    border-radius: 20px;
    z-index: -1
}

.cards .card .block .back>.qrcode {
    width: 135px;
    height: 135px;
    background-color: #fff;
    background-repeat: no-repeat;
    background-position: center center;
    background-size: 90% 90%;
    border-radius: 15px
}

.cards .card:nth-of-type(3) .back span:last-child,
.cards .card:nth-of-type(3)>.front span:last-child,
.cards .card:nth-of-type(4) .back span:last-child,
.cards .card:nth-of-type(4)>.front span:last-child {
    font-size: 22px
}

.cards .card:hover .block {
    transform: rotateY(-180deg)
}

.website-introduce_wrapper {
    position: relative;
    background: #2f4842;
    height: 25rem
}

.logo-div {
    background-image: url(../img/bottom-logo.png);
    background-position: center;
    background-repeat: no-repeat;
    background-size: 100%;
    width: 15.625rem;
    height: 9.375rem;
    margin: auto
}

.swiper-container {
    width: 335px;
    height: 738px;
    overflow: hidden;
    border-radius: 40px;
    margin-top: 65px;
    z-index: 2
}

.swiper-slide {
    background-repeat: no-repeat;
    background-size: 100%;
    border-radius: 40px;
    background-position: center
}

.swiper-item {
    height: 100%;
    position: relative
}

.swiper-container .swiper-slide .ground-info .ground-info-title {
    margin-bottom: 15px;
    color: #fff;
    font-weight: 500;
    font-size: 40px;
    line-height: 72px;
}

.swiper-container .swiper-slide .ground-info .ground-info-detail {
    color: #fff;
    font-weight: 400;
    font-size: 18px;
    line-height: 36px
}

.swiper-container .swiper-slide .ground-info .ground-info-option-style {
    padding-top: 10px;
    color: rgba(255, 255, 255, .8);
    font-weight: 400;
    font-size: 14px;
    line-height: 30px
}

.swiper-container .swiper-slide .ground-info .ground-info-option {
    margin-top: 64px;
    padding: 12px 45px;
    font-size: 18px;
    line-height: 28px;
    border: solid 1px #ffff !important;
    border: none;
    border-radius: 4px;
    position: relative;
    display: inline-block;
    font-weight: 400;
    white-space: nowrap;
    text-align: center;
    cursor: pointer
}

.swiper-container .swiper-slide .ground-info .ground-info-option a {
    color: #fff
}

.swiper-pagination-bullet {
    background: #eee;
    opacity: 1;
    width: 1rem;
    height: .25rem;
    border-radius: .25rem;
    bottom: 3rem
}

.swiper-pagination-bullet-active {
    background: #0057ff
}

.camp-flex {
    display: flex;
    justify-content: flex-start;
    flex-flow: wrap;
}

.camp-first {
    width: 23.5%;
    box-shadow: 0 2px 5px #0000001f;
    border-radius: 15px;
    margin-right: 2%;
    height: 45vh;
    overflow: hidden;
}

.camp-first:nth-child(4n) {
    margin-right: 0px;
}

.camp-title {
    padding: 15px;
    width: 100%
}

.camp-p {
    font-size: 18px;
    font-weight: 600;
}

.camp-pitecer {
    width: 100%;
    height: 35vh;
    border-radius: 15px 15px 0 0;
    -webkit-transition: opacity 1.0s linear;
    -moz-transition: opacity 1.0s linear;
    transition: opacity 1.0s linear;
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    position: relative
}

.m-bt-20 {
    margin-bottom: 25px
}