/*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,#FF9700,#FFCB09);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width:600px;
    height:60px;
    border-radius: 30px;
    font-size:24px;
    line-height: 60px;
    font-weight: 700;
    text-align: center;
    color:#FFFFFF;
    box-shadow:0 0 8px rgba(83,6,6,.14);
    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,menu{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(50% - 600px);
    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;
}

/* heading styles */
h2[role=heading]{
    background: linear-gradient(to right,transparent,#B5C4FF) no-repeat left center/38px 24px,
    linear-gradient(to right,#B5C4FF,transparent) no-repeat right center/38px 24px;
    display:flex;
    align-items: center;
    width:fit-content;
    height: 55px;
    padding:0 50px;
    font-size:36px;
    color:#181448;
    margin-bottom:40px;
    text-align: center;
}
/* banner style */
body > figure[role=banner]{
    background:linear-gradient(45deg,#D4EAFF,#D4EAFF);
    position: relative;
    width:100%;
    min-width:1200px;
    margin-top:80px;
    padding-top:400px;
    overflow:hidden;
}
body > figure[role=banner] > img{
    position: absolute;
    top:0;
    left:50%;
    transform:translateX(-50%);
    width:1920px;
    object-position: center;
}
body > figure[role=banner] > figcaption{
    background: rgba(255,255,255,1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
    padding:0 calc(50% - 510px);
    font-size:22px;
}
body > figure[role=banner] > figcaption> time::before{
    background: #0839DC;
    display: inline-block;
    content:"开课时间";
    width: 126px;
    height: 34px;
    line-height:34px;
    text-align: center;
    border-radius: 5px;
    margin-right:20px;
    color:#FFFFFF;
}
body > figure[role=banner] > figcaption> time::after{
    content:attr(datetime);
    margin-left:20px;
}
body > figure[role=banner] > figcaption > button{
    background: linear-gradient(to right,#FF8B5E,#FF4224);
    width: 172px;
    height: 34px;
    line-height: 34px;
    border-radius: 20px;
    font-size:22px;
    border:0;
    color:#FFFFFF;
    outline:none;
    cursor: pointer;
}

/*footer styles*/
body > footer{
    background: #323232;
    display: flex;
    justify-content: center;
    align-items: center;
    gap:5px;
    width:100%;
    min-width:1200px;
    color:#FFFFFF;
    font-size:14px;
    height:60px;
}

/* module styles */
section[data-module]{
    display: flex;
    width:100%;
    min-width: 1200px;
    padding:50px calc(50% - 600px);
    flex-direction: column;
    align-items: center;
}

/* module trend styles */
section[data-module=trend]{
    background:#EBF1F9;
}
section[data-module=trend] > article{
    position: relative;
    width: 1180px;
    padding-top:60px;
}
section[data-module=trend] menu{
    position: absolute;
    display: flex;
    justify-content: space-between;
    top:0;
    left:50%;
    transform:translateX(-50%);
    width: 1060px;
    height: 120px;
    z-index:999;
}
section[data-module=trend] menu > li{
    background:#B8D5FF;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 320px;
    height: 120px;
    font-size:24px;
    line-height: 34px;
    text-align: center;
    border-radius:20px;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(0,0,0,.15);
}
section[data-module=trend] menu > li[aria-current]{
    background:#183DC4;
    color:#FFFFFF;
}
section[data-module=trend] figure{
    background: #FFFFFF;
    position: absolute;
    display: flex;
    align-items: center;
    width: 100%;
    padding:100px 40px 40px 40px;
    border-radius: 15px;
    opacity: 0;
    z-index:-1;
}
section[data-module=trend] figure[aria-current]{
    position: relative;
    opacity: 1;
    z-index:1;
}
section[data-module=trend] figcaption{
    font-size:20px;
    line-height: 40px;
    min-width: 400px;
    margin-right:40px;
}
section[data-module=trend] figure:first-of-type > figcaption{
    min-width:320px;
}
section[data-module=trend] figure p{
    text-align: center;
}
section[data-module=trend] figure img{
    margin:15px auto;
}
section[data-module=trend] figure b{
    font-size:20px;
}
section[data-module=trend] figure small{
    font-size:16px;
    color:#939393;
}

/* module worth styles */
section[data-module=worth] > ul{
    display: flex;
    width: 100%;
}
section[data-module=worth] > ul > li:first-child{
    background:#F9F5EB url(../images/worth-left.png) no-repeat top center/400px 289px;
    padding-top:120px;
    width: 400px;
}
section[data-module=worth] > ul > li:last-child{
    background:#D0F2FF url(../images/worth-right.png) no-repeat top center/800px 289px;
    padding-top:120px;
    width: 800px;
}
section[data-module=worth] > ul h4{
    color:#FFFFFF;
    padding:7px 40px;
    width: fit-content;
    font-size:24px;
}
section[data-module=worth] > ul p{
    font-size:20px;
    line-height: 40px;
    padding:40px;
}
section[data-module=worth] > ul > li:first-child h4{
    background:#FF9700;
}
section[data-module=worth] > ul > li:last-child h4{
    background:#0080FF;
}
section[data-module=worth] > ul > li:first-child b{
    background:linear-gradient(#FFC571,#FFC571) no-repeat left bottom 2px/100% 8px;
}
section[data-module=worth] > ul > li:last-child b{
    background:linear-gradient(#54AAFF,#54AAFF) no-repeat left bottom 2px/100% 8px;
}

/* module introduce styles */
section[data-module=introduce]{
    background:url(../images/introduce-bg.png) no-repeat center/cover;
}
section[data-module=introduce] > h2{
    color:#FFFFFF;
}
section[data-module=introduce] > p{
    background: rgba(255,255,255,0.3);
    width: 1060px;
    padding:30px 60px;
    margin-bottom:40px;
    font-size:20px;
    color:#FFFFFF;
    line-height: 40px;
    border-radius: 30px;
    border: 1px solid #FFFFFF;
    backdrop-filter: blur(4px);
}

/* module step styles */
section[data-module=step] > article{
    display: flex;
    flex-wrap:wrap;
    justify-content: space-between;
    width: 1180px;
}
section[data-module=step] menu{
    background: linear-gradient(to right, #7EE2FE 0%, #3690FA 100%) no-repeat center/720px 6px;
    display: flex;
    justify-content: space-between;
    margin:20px auto;
    width: 1040px;
}
section[data-module=step] menu > li{
    background: url(../images/step-item.png) no-repeat center/210px 60px;
    width: 210px;
    height: 60px;
    font-size:24px;
    text-align: center;
    line-height: 60px;
    color:#FFFFFF;
    border-radius: 30px;
}
section[data-module=step] section{
    background: linear-gradient( 180deg, #E2E9FF 0%, #C1CFFF 100%);
    width: 350px;
    padding:10px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    border-radius: 30px;
}
section[data-module=step] section > dl:last-child{
    margin-top:10px;
}
section[data-module=step] dl{
    width: 100%;
    background: rgba(255,255,255,0.6);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding-bottom:30px;
    border-radius:30px;
}
section[data-module=step] dl > dt{
    background: #FFFFFF;
    width: 100%;
    padding:5px 20px;
    font-size:20px;
    font-weight: 700;
    line-height: 40px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    border-radius: 30px 30px 0 0;
}
section[data-module=step] dl > dd::before{
    display: inline-block;
    content:"";
    width: 6px;
    height: 6px;
    margin-right:10px;
    transform:translateY(-4px);
    border-radius: 6px;
    background: #295CF3;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}
section[data-module=step] dl > dd{
    padding:30px 30px 0 30px;
    font-size:18px;
}

/* module feature styles */
section[data-module=feature]{
    background:#EBF1F9;
}
section[data-module=feature] > ol{
    display: flex;
    flex-wrap:wrap;
    justify-content: space-between;
    width:1160px;
}
section[data-module=feature] > ol > li{
    background:url(../images/feature-01.png) no-repeat center top 32px/68px 46px,
    linear-gradient(#CEF1FF,#FFFFFF);
    width: 560px;
    padding:30px;
    margin-bottom:40px;
    border-radius: 20px;
    border: 1px solid #C9D5FF;
}
section[data-module=feature] > ol > li:nth-of-type(2){
    background-image:url(../images/feature-02.png),linear-gradient(#CEF1FF,#FFFFFF);
}
section[data-module=feature] > ol > li:nth-of-type(3){
    background-image:url(../images/feature-03.png),linear-gradient(#CEF1FF,#FFFFFF);
}
section[data-module=feature] > ol > li:nth-of-type(4){
    background-image:url(../images/feature-04.png),linear-gradient(#CEF1FF,#FFFFFF);
}
section[data-module=feature] > ol h4{
    color:#1B40CC;
    font-size:26px;
    font-weight: 700;
    text-align: center;
    margin:20px auto;
}
section[data-module=feature] > ol p{
    font-size:20px;
    line-height: 40px;
}

/* module crowd styles */
section[data-module=crowd]{
    background:url(../images/crowd-bg.png) no-repeat center/cover;
}
section[data-module=crowd] > h2{
    color:#FFFFFF;
}
section[data-module=crowd] > ul{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    width: 1130px;
}
section[data-module=crowd] > ul > li{
    background:rgba(255,255,255,0.95);
    width: 260px;
    border-radius: 20px;
    margin-bottom:30px;
}
section[data-module=crowd] h4{
    background:#D6D9FA linear-gradient(currentColor,currentColor) no-repeat left 13px center/7px 60px;
    display: flex;
    align-items: center;
    width:100%;
    height: 130px;
    padding:30px;
    color:#4158FF;
    font-size:23px;
    line-height: 30px;
    border-radius:20px;
}
section[data-module=crowd] ul > li:nth-of-type(2) h4{
    background-color:#E7D6FA;
    color:#AE41FF;
}
section[data-module=crowd] ul > li:nth-of-type(3) h4{
    background-color:#CEE2EF;
    background-size:7px 30px;
    color:#107BA6;
}
section[data-module=crowd] ul > li:nth-of-type(4) h4{
    background-color:#EBDCD3;
    background-size:7px 90px;
    color:#CA6C00;
}
section[data-module=crowd] ul > li:nth-of-type(5) h4{
    background-color:#CEE0D3;
    background-size:7px 30px;
    color:#0E8502;
}
section[data-module=crowd] ul > li:nth-of-type(6) h4{
    background-color:#EBDCD3;
    background-size:7px 60px;
    color:#CA6C00;
}
section[data-module=crowd] ul > li:nth-of-type(7) h4{
    background-size:7px 30px;
}
section[data-module=crowd] ul > li:nth-of-type(8) h4{
    background-color:#E7D6FA;
    background-size:7px 30px;
    color:#AE41FF;
}
section[data-module=crowd] p{
    padding:10px 30px 30px 30px;
    font-size:20px;
    line-height:40px;
}

/* module course styles */
section[data-module=course] > article{
    display: flex;
    justify-content: space-between;
    width: 1160px;
}
section[data-module=course] menu{
    width:440px;
}
section[data-module=course] menu > li{
    width: 100%;
    padding:15px 20px;
    font-size:22px;
    line-height: 32px;
    cursor: pointer;
}
section[data-module=course] menu > li[aria-current]{
    background:#1B40CC;
    color:#FFFFFF;
    border-radius: 15px;
}
section[data-module=course] section{
    background: #F4F8FF;
    position: absolute;
    z-index:-1;
    opacity: 0;
    width: 710px;
    transform:scale(0);
    padding:20px 20px 20px 0;
    border-radius: 15px;
}
section[data-module=course] section[aria-current]{
    position: relative;
    opacity: 1;
    z-index: 1;
    transform:scale(1);
}
section[data-module=course] section > h4{
    width: fit-content;
    padding:10px 40px;
    font-size:22px;
    background: #C5D1FF;
    border-radius: 0 100px 100px 0;
}
section[data-module=course] section > p{
    padding:20px 20px 20px 60px;
    font-size:20px;
    line-height: 36px;
}