html {
            
}

body {
    background-color: #ffffff;
    width: 100%;
    height: 100%;
    margin: 0;
    display: flex;
    justify-content: center;
    overflow-x: hidden;
    font-family: Arial,sans-serif,微软雅黑
}
.body-div {
    min-width: 1920px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.banner-div {
    height: 560px;
    position: relative;
}
.download-div {
    height: 320px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.video1-div {
    height: 970px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: url(/image/2video1/bg.png) no-repeat;
    background-position: left 50%;
}
.banner2-div {
    height: 970px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: url(/image/question_bg.png) no-repeat center center;
}

.video3-div {
    height: 720px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.video3-div .title {
    font-size: 36px;
    padding: 40px 0;
    font-weight: bold;
    color: #000;
    line-height: 36px;
}

.ldys-div {
    height: 720px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.ldys-div .title {
    font-size: 36px;
    padding: 40px 0;
    font-weight: bold;
    color: #000;
    line-height: 36px;
}
.ldys-div .per-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.ldys-div .per-content .per-row {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
}
.ldys-div .per-content .per-row .per {
    width: 400px;
    height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.ldys-div .per-content .per-row .per .text {
    line-height: 36px;
}

.intro-div {
    height: 970px;
    background: url(/image/4groove/cover.png) center center no-repeat;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.intro2-div {
    height: 970px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: url(/image/4groove/cover.png) center center no-repeat;
}
.skill-div {
    height: 970px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.dongtai-div {
    height: 600px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.coop-div {
    height: 580px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.banner-div .buy {
    background: url(/image/1banner/buy.png) center center no-repeat;
    position: absolute;
    left: 155px;
    bottom: 75px;
    width: 296px;
    height: 60px;
}
.banner-div .buy:hover {
    background: url(/image/1banner/buy-push.png) center center no-repeat;
}

.download-div .download-title {
    color: #000000;
    font-size: 24px;
    font-weight: bold;
    line-height: 24px;
}
.download-div .download-icon {
    margin-top: 30px;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
}
.download-div .download-icon .download-android {
    width: 284px;
    height: 166px;
    position: relative;
}
.download-div .download-icon .download-iphone {
    width: 284px;
    height: 166px;
    margin-left: 20px;
    position: relative;
}
.download-div .download-icon .download-ipad {
    width: 284px;
    height: 166px;
    margin-left: 20px;
    position: relative;
}
.download-div .download-icon .download-android a {
    width: 284px;
    height: 166px;
    background: url(/image/1banner/android.png) center center no-repeat;
    display: block;
}
.download-div .download-icon .download-iphone a {
    width: 284px;
    height: 166px;
    background: url(/image/1banner/iphone.png) center center no-repeat;
    display: block;
}
.download-div .download-icon .download-ipad a {
    width: 284px;
    height: 166px;
    background: url(/image/1banner/ipad.png) center center no-repeat;
    display: block;
}

.video1-div .video1-title {
    font-size: 36px;
    font-weight: bold;
    color: #000;
    line-height: 36px;
    margin-top: 30px;
}
.video1-div .video1-intro {
    padding: 80px 0px 70px 0px;
    font-size: 24px;
    color: #000;
    line-height: 36px;
}
.video1-div .video1-video {
    margin-top: 40px;
    height: 610px;
    width: 920px;
}
.video1-div .video1-video video {
    background: transparent url(/image/2video1/cover.png) 50% 50% / cover no-repeat;
}
.video1-div .video1-btn button {
    width: 282px;
    height: 80px;
    background: url(/image/3video2/btn.png) center center no-repeat;
    border: none;
    cursor: pointer;
}
.video1-div .video1-btn button:hover {
    background: url(/image/3video2/btn-push.png) center center no-repeat;
}
.video3-div .video3-video video {
    background: transparent url(/image/3video2/cover.png) 50% 50% / cover no-repeat;
}

.intro-div .logo {
    height: 220px;
    width: 245px;
}
.intro-div .logo img {
    margin-top: 70px;
}
.intro-div .intro {
    height: 750px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.intro-div .intro .info-img {
    height: 350px;
}
.intro-div .intro .turn-btn {
    height: 100px;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
}
.intro-div .intro .turn-btn button {
    border: none;
    background: url(/image/4groove/btn.png) center center no-repeat;
    width: 50px;
    height: 13px;
    margin-left: 15px;
    cursor: pointer;
}
.intro-div .intro .turn-btn button.selection {
    background: url(/image/4groove/btn-active.png) center center no-repeat;
}
.intro-div .intro .info-text {
    height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.intro-div .intro .info-text div {
    height: 70px;
    font-size: 24px;
    line-height: 24px;
    color: #000000;
    cursor: pointer;
}
.intro-div .intro .info-text div.selection {
    color: #038aff;
}
.intro-div .intro .info-text span {
    display: none;
}
.intro-div .intro .info-text span.selection {
    display: inline-block;
}

.intro2-div .intro2-title {
    height: 180px;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
}
.intro2-div .intro2-title div {
    color: #000;
    font-size: 24px;
    width: 170px;
    cursor: pointer;
    text-align: center;
    height: 60px;
    background: url(/image/5intro2/line.png) left bottom repeat-x;
}
.intro2-div .intro2-title div.selection {
    background: url(/image/5intro2/line-active.png) left bottom repeat-x;
}
.intro2-div .intro2-img {
    height: 630px;
}
.intro2-div .intro2-img img {
    
}
.intro2-div .intro2-text {
    height: 160px;
    font-size: 24px;
    color: #000;
    font-weight: lighter;
}
.intro2-div .intro2-text div {
    display: none;
}
.intro2-div .intro2-text div.selection {
    display: block;
}

.skill-div .skill-title {
    font-size: 32px;
    font-weight: bold;
    height: 100px;
    display: flex;
    justify-content: center;
    align-items: center;
}
.skill-div .skill-content {
    height: 870px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.skill-div .skill-content .description {
    text-align: center;
    line-height: 60px;
    height: 60px;
    font-size: 24px;
    font-weight: lighter;
    cursor: pointer;
}
.skill-div .skill-content .skill12, .skill-div .skill-content .skill34 {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
}
.skill-div .skill-content .skill12 img, .skill-div .skill-content .skill34 img  {
    width: 575px;
    height: 348px;
    cursor: pointer;
}

.dongtai-div .dongtai-title {
    font-size: 32px;
    font-weight: bold;
    height: 90px;
    display: flex;
    justify-content: center;
    align-items: center;
}
.dongtai-div .dongtai-content {
    height: 491px;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
}
.dongtai-div .dongtai-content div img {
    width: 380px;
    height: 230px;
}
.dongtai-div .dongtai-content div.dongtai-text {
    width: 380px;
    height: 261px;
    background: url(/image/7dongtai/text-bg.png) center center no-repeat;
}
.dongtai-div .dongtai-content div.dongtai-text p.title {
    font-size: 22px; 
    padding: 30px 30px 0 30px; 
    margin:0;
}
.dongtai-div .dongtai-content div.dongtai-text p.content {
    text-indent: 27px;
    padding: 0 29px 0 29px; 
    line-height: 28px;
}

.coop-div .coop-title {
    font-size: 32px;
    font-weight: bold;
    height: 100px;
    display: flex;
    justify-content: center;
    align-items: center;
}
.coop-div .coop-img {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.coop-div .coop-img .coop-row {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    margin-top: 40px;
}
.coop-div .coop-img img {
    width: 189px;
    height: 68px;
}

.video-js {
    background: #ffffff !important;
}
video {
    -webkit-mask-image: -webkit-radial-gradient(white, black);
    -webkit-backface-visibility: hidden;
    -moz-backface-visibility: hidden;
    -webkit-appearance: none;
    border: none;
    outline: none !important;
    box-shadow: none;
}
.downloadErWeiMa {
    position: absolute;
    background: url(/image/erweimakuang.png) center center no-repeat;
    width: 250px;
    height: 270px;
    display: none;
    top: -270px;
    left: 20px;
}

.price {
    position: absolute;
    font-size: 28px;
    color: #ffffff;
    left: 220px;
    bottom: 160px;
}
.price span {
    font-size: 54px;
}