/*root styles*/
:root{
    font:normal normal normal 16px/1 '微软雅黑','Microsoft YaHei Bold',sans-serif;
}
html,body{
    width:100%;
    height:100%;
    color:#323232;
}
*,*::before,*::after{box-sizing: border-box;margin:0;padding:0;}
a{text-decoration: none;color:#323232;}
a[role=button]{
    background: linear-gradient(to right,#FFA900,#FFA700);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width:700px;
    height:60px;
    border-radius: 30px;
    font-size:30px;
    line-height: 60px;
    font-weight: 700;
    text-align: center;
    padding:0 140px;
    color:#FFFFFF;
    transition: all .25s ease-in;
}
a[role=button]:hover{
    box-shadow: 0 5px 10px rgba(215, 140, 10, 0.35);
    transform:translateY(-5px);
    cursor: pointer;
}
dl,ul,ol{list-style:none;margin:0;padding:0;}
/*header style*/
body > header {
    background:#FFFFFF;
    position: fixed;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    top:0;
    left:0;
    width:100%;
    height: 80px;
    z-index:999999;
    padding:0 calc((100% - 1200px)/2);
    box-shadow: 0 5px 10px rgba(200,200,200,.35);
}
body > header img{
    height:40px;
    cursor: pointer;
}
body > header > nav{
    display: flex;
    justify-content: space-between;
    width: 500px;
    padding:0 50px;
}
nav[role=navigation] > a{
    position:relative;
    font-size:20px;
    letter-spacing: 1px;
}
nav[role=navigation] > a:hover{
    color:#0780FE;
}
nav[role=navigation] > a::after{
    content: "";
    background-color: #0780FE;
    position: absolute;
    left:50%;
    transform:translateX(-50%);
    bottom:-10px;
    width:0;
    height:3px;
    border-radius:2px;
    transition: all .2s ease-in;
}
nav[role=navigation] > a:hover::after,nav[role=navigation] > a:active::after{
    width:100%;
}
body > header > code{
    display: flex;
    align-items: center;
    height:30px;
    color:#0780FE;
    font: normal bold 26px/35px Alibaba-PuHuiTi-B, Alibaba-PuHuiTi,Arial, serif;
}
body > header > code > img{
    height:36px;
}
/* data-module styles*/
section[data-module]{
    display: flex;
    width:100%;
    min-width: 1200px;
    padding:50px calc(50% - 600px);
    flex-direction: column;
    align-items: center;
}
h2[role=heading]{
    background:url(../images/heading-left.png) no-repeat left center/82px 54px,
    url(../images/heading-right.png) no-repeat right center/82px 54px;
    display:inline-flex;
    align-items: center;
    font-size:42px;
    color:#383838;
    height: 85px;
    padding:0 100px;
    margin-bottom:40px;
    text-align: center;
}
/*banner style*/
body > section[data-module=banner]{
    background:url(../images/banner.png) no-repeat center,
    linear-gradient(45deg,#002ff8,#0834c5);
    justify-content: center;
    margin-top:80px;
    padding:0;
    height:520px;
    overflow:hidden;
}
section[data-module=banner] > img{
    height: 100%;
    object-position: center;
}
/* module note style*/
section[data-module=note]{
    background: rgba(255,255,255,.25);
    position: relative;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    padding:0 calc(50% - 510px);
    font-size:24px;
    margin-top:-80px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}
section[data-module=note] > time::before{
    background: linear-gradient(to right,#38FDB6,#CCFF8D);
    display: inline-block;
    content:"开课时间";
    width: 148px;
    height: 45px;
    line-height:45px;
    border-radius: 5px;
    padding-left:32px;
    margin-right:20px;
    color:#333333;
}
section[data-module=note] > button{
    background: #FF980B;
    width: 200px;
    height: 50px;
    line-height: 45px;
    border-radius: 5px;
    border:0;
    font-size:24px;
    color:#FFFFFF;
    outline:none;
    cursor: pointer;
}

/* module summary styles */
section[data-module=summary] > p{
    background:#EDF4FF url(../images/summary-item-bg.png) no-repeat top center/260px 16px;
    width: 1140px;
    padding:40px 60px;
    font-size:20px;
    line-height: 35px;
    border-radius: 30px;
}

/* module advantage styles */
section[data-module=advantage] > ul{
    display: flex;
    justify-content: space-between;
    width: 1170px;
}
section[data-module=advantage] > ul > li{
    background: url(../images/advantage-1.png) no-repeat top center/130px 100px,linear-gradient(#EBF0FF 50px,#FFFFFF 100px);
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 370px;
    height: 360px;
    padding:80px 30px 0 30px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.1);
    border-radius: 20px;
}
section[data-module=advantage] > ul > li:nth-of-type(2){
    background: url(../images/advantage-2.png) no-repeat top center/130px 100px,linear-gradient(#EBF0FF 50px,#FFFFFF 100px);
}
section[data-module=advantage] > ul > li:nth-of-type(3){
    background: url(../images/advantage-3.png) no-repeat top center/130px 100px,linear-gradient(#EBF0FF 50px,#FFFFFF 100px);
}
section[data-module=advantage] > ul > li > h4{
    background: #EBF0FF;
    padding:5px 20px;
    font-size:25px;
    border-radius: 20px;
    border: 1px solid #608AFF;
}
section[data-module=advantage] > ul > li > p{
    padding-top:25px;
    font-size:18px;
    line-height: 30px;
}

/* module change styles */
section[data-module=change]{
    background:#F6F7FB;
}
section[data-module=change] > ul{
    width: 1080px;
}
section[data-module=change] > ul > li{
    background: url(../images/change-item-bg.png) no-repeat center/100% 100%;
    position:relative;
    width: 100%;
    min-height: 260px;
    padding:40px 30px;
    margin-top:120px;
    border-radius: 15px;
}
section[data-module=change] > ul > li:nth-of-type(2){
    padding-top:180px;
}
section[data-module=change] > ul > li > h4{
    background:#086BFF;
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    left:0;
    top:-25px;
    width: 130px;
    height: 50px;
    font-size:24px;
    color:#FFFFFF;
    border-radius:100px 100px 100px 0;
}
section[data-module=change] > ul > li > p{
    font-size:18px;
    line-height: 30px;
}
section[data-module=change] > ul > li > img{
    position: absolute;
    right:30px;
    top:-95px;
}

/* module trend styles */
section[data-module=trend] > ul{
    display: flex;
    flex-wrap:wrap;
    justify-content: space-between;
    align-content: space-between;
    width: 1170px;
    height: 640px;
    counter-reset: number;
    margin-bottom:80px;
}
section[data-module=trend] > ul > li::before{
    background:#265CF2;
    counter-increment: number;
    content:counter(number);
    display: block;
    position: absolute;
    left:0;
    top:35px;
    width:60px;
    height:35px;
    line-height: 35px;
    text-align: center;
    font-size:26px;
    color:#FFFFFF;
    border-radius:0 25px 25px 0;
}
section[data-module=trend] > ul > li{
    background:#F6F7FB;
    display: flex;
    flex-direction: column;
    position: relative;
    width: 570px;
    padding:40px 30px;
    margin-bottom:auto;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    border-radius: 20px;
}
section[data-module=trend] > ul > li:nth-of-type(3){
    transform:translate(600px,-195px);
}
section[data-module=trend] > ul > li:nth-of-type(4){
    width: 100%;
    transform:translateY(-170px);
}
section[data-module=trend] > ul > li > h4{
    font-size:26px;
    padding-left:35px;
    line-height: 35px;
}
section[data-module=trend] > ul > li > p{
    font-size:18px;
    padding:15px 0 0 30px;
    line-height: 32px;
}

/* module step styles */
section[data-module=step]{
    background:#F6F7FB url(../images/step-bg.png) no-repeat center/1200px 793px;
    height: 795px;
}
section[data-module=step] > ul{
    display: flex;
    flex-direction:column;
    justify-content: space-between;
    width: 100%;
    height: 520px;
    padding:40px 0 0 300px;
}
section[data-module=step] > ul > li{
    background:url(../images/step-item.png) no-repeat left center/140px 24px;
    display: flex;
    align-items: center;
    padding-left:140px;
}
section[data-module=step] > ul > li:nth-of-type(2){
    margin-left:100px;
}
section[data-module=step] > ul > li:nth-of-type(3){
    margin-left:75px;
}
section[data-module=step] > ul > li > h4{
    font-size:24px;
    padding:10px 25px;
    border-radius: 25px;
    border:solid #8EAAF7;
    border-width:2px 0 2px 2px;
}
section[data-module=step] > ul > li > p{
    font-size:18px;
    line-height: 35px;
    padding-left:30px;
}

/* module features styles */
section[data-module=features] > ul{
    display: flex;
    flex-wrap:wrap;
    justify-content: space-between;
    align-content: space-between;
    width: 100%;
    height: 520px;
    margin-bottom:40px;
    counter-reset: number;
}
section[data-module=features] > ul > li{
    width: 580px;
    height: 240px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.15);
    border-radius: 20px;
    overflow: hidden;
}
section[data-module=features] > ul > li > h4{
    background:#4476FF;
    width: 100%;
    height: 75px;
    line-height: 75px;
    text-align: center;
    font-size:26px;
    color:#FFFFFF;
}
section[data-module=features] > ul > li:nth-of-type(2) > h4{
    background:#FF7E26;
}
section[data-module=features] > ul > li:nth-of-type(3) > h4{
    background:#FF4F8C;
}
section[data-module=features] > ul > li:nth-of-type(4) > h4{
    background:#01AFD5;
}
section[data-module=features] > ul > li > p{
    font-size:18px;
    line-height: 35px;
    padding:15px 30px;
}
section[data-module=features] > ul > li:nth-of-type(3) > p{
    column-count: 2;
    column-gap:80px;
    padding:15px 0 0 30px;
    white-space: nowrap;
}


/* module hot styles */
section[data-module=hot]{
    background:#FAFAFA;
}
section[data-module=hot] > ul{
    display: flex;
    justify-content: space-between;
    width: 1100px;
}
section[data-module=hot] > ul > li{
    background: linear-gradient(#FFFFFF,#DDFFF1);
    width: 530px;
    height: 370px;
    padding:40px 25px;
    border-radius: 30px;
    text-align: center;
    border: 2px solid #EBEBEB;
}
section[data-module=hot] > ul > li > h4{
    background: linear-gradient( 300deg,#CCFF8D,#38FDB6);
    width: 320px;
    height: 55px;
    font-size:26px;
    line-height: 55px;
    margin:0 auto;
    border-radius: 25px;
}
section[data-module=hot] > ul > li > p{
    font-size:18px;
    padding-top:15px;
    line-height: 35px;
    white-space: nowrap;
}

/* module crowd styles */
section[data-module=crowd]{
    background:#F6F7FD;
}
section[data-module=crowd] > ul{
    display: flex;
    justify-content: space-between;
    width: 1180px;
    margin-bottom:40px;
}
section[data-module=crowd] > ul > li{
    background: linear-gradient( 75deg,#FFD5B7,#FEEBDF);
    width: 370px;
    height: 295px;
    padding:30px 0;
    border-radius: 20px;
}
section[data-module=crowd] > ul > li:nth-of-type(2){
    background-image:linear-gradient( 75deg,#A5EDD8,#D7FEEF);
}
section[data-module=crowd] > ul > li:nth-of-type(3){
    background-image:linear-gradient( 75deg,#FFE1BD,#FDF5E7);
}
section[data-module=crowd] > ul > li > h4{
    background:rgba(255,255,255,.5);
    width: 100%;
    height: 55px;
    line-height: 55px;
    text-align: center;
    font-size:24px;
}
section[data-module=crowd] > ul > li > p{
    padding:25px 40px;
    font-size:18px;
    line-height: 30px;
}

/* module course styles */
section[data-module=course] > dl{
    display: flex;
    flex-direction: column;
    width:1180px;
}
section[data-module=course] > dl > dt{
    background:linear-gradient(#F0F0F0,#F0F0F0) no-repeat bottom center/100% 2px;
    display: flex;
    justify-content: space-between;
    width: 100%;
    padding:0 280px;
    margin-bottom:20px;
}
section[data-module=course] > dl > dt > a{
    font-size:24px;
    color:#7A7A7A;
    padding-bottom:10px;
    cursor:pointer;
}
section[data-module=course] > dl > dt > a[aria-current]{
    border-bottom:3px solid #265CF2;
    color:#323232;
    font-weight: 700;
}
section[data-module=course] > dl > dd{
    position: relative;
    width: 100%;
}
section[data-module=course] > dl > dd > ul{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-content: center;
    width: 100%;
    position: absolute;
    transform-origin: left top;
    transform:scaleY(0);
    opacity: 0;
    z-index: -1;
    transition: all .25s ease-out;
}
section[data-module=course] > dl > dd > ul[aria-current=true]{
    position: relative;
    opacity: 1;
    z-index: 1;
    transform:scaleY(1);
}
section[data-module=course] > dl > dd > ul > li{
    background:#F8F8F8;
    width: 580px;
    margin-bottom:20px;
}
section[data-module=course] > dl > dd > ul > li > h4{
    background:#265CF2;
    color:#FFFFFF;
    font-size:18px;
    padding:10px 20px;
}
section[data-module=course] > dl > dd > ul > li > p{
    padding:20px;
    font-size:16px;
    line-height: 25px;
}

/* module case styles */
section[data-module=case]{
    background:#F6F7FB;
}
section[data-module=case] > div{
    position: relative;
    width: calc(100% - 20px);
    height: 220px;
    overflow: hidden;
}
section[data-module=case] > div > figure{
    display: flex;
    position:absolute;
    width: 100%;
    height: 100%;
}
section[data-module=case] > div > figure > img{
    margin-right:20px;
}
section[data-module=case] > div > figure > img:last-of-type{
    margin-right:0;
}
section[data-module=case] > div > button{
    background:url(../images/arrow-left.png) no-repeat;
    position: absolute;
    top:50%;
    width: 40px;
    height: 40px;
    border:0;
    transform:translateY(-50%);
    color:transparent;
    cursor: pointer;
    opacity: .5;
    transition:opacity .25s ease-out;
}
section[data-module=case] > div > button:last-of-type{
    background-image:url(../images/arrow-right.png);
    right: 0;
}
section[data-module=case] > div > button:hover{
    opacity: 1;
}


/*footer styles*/
body > footer{
    background: #323232;
    display: flex;
    justify-content: center;
    align-items: center;
    width:100%;
    color:#FFFFFF;
    font-size:14px;
    height:60px;
}
body > footer > a{
    color:#FFFFFF;
    margin:0 10px;
}

/*IE10~11 hack*/
@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
    section[data-module=banner] > img{
        display: none;
        opacity: 0;
    }
}