@charset "utf-8";
body,
dd,
div,
dl,
footer,
form,
h1,
h2,
h3,
h4,
h5,
h6,
header,
iframe,
input,
label,
menu,
nav,
ol,
p,
section,
select,
textarea,
ul,
li{
    margin: 0;
    padding: 0;
}
ul,li{
    list-style: none;
}
footer,
header,
nav,
section{
    display: block;
}
a{
    text-decoration: none;
    color: inherit;
}
body {
    font-size: 24px;
    font-family: Microsoft YaHei-Light, Microsoft YaHei;
    color: #000;
    font-weight: 400;
    min-width: 1200px;
}
header{
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 999;
}
header.topbgs{
    background: #FFFFFF;
    box-shadow: 0px 4px 20px 0px rgba(0,0,0,0.05);
}
.header-cont{
    display: flex;
    align-items: center;
    width: 1200px;
    height: 80px;
    margin: 0 auto;
}
.logo {
    display: flex;
    flex-direction: column;
    justify-content: center;
    font-size: 16px;
    background: url('../images/logo.png') 0 center no-repeat;
    padding-left: 60px;
    min-height: 50px;
}
.logo p{
    font-size: 14px;
    font-weight: 300;
    color: #555555;
}
nav{
    font-size: 0;
}
nav a{
    position: relative;
    display: inline-block;
    font-size: 16px;
    font-weight: 300;
    padding: 11px 10px;
}
nav a:hover{
    color: #283FFB;
}
nav a.on{
    font-weight: 400;
}
nav a + a{
    margin-left: 30px;
}
nav a.on::after{
    content: '';
    position: absolute;
    bottom: 0;
    left: 16px;
    right: 16px;
    height: 2px;
    background: #001CFF;
    z-index: 9;
}

.header-btns{
    margin-left: 40px;
}

.dow-btn{
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    width: 130px;
    height: 40px;
    background: #1A73E8;
    border-radius: 5px;
    font-size: 16px;
    font-weight: 300;
    color: #FFFFFF;
    cursor: pointer;
}
.dow-btn:hover{
    background: #7BB4FF;
}
.dow-btn img{
    width: 20px;
    margin-right: 5px;
}
.dow-btn .curr-ico{
    display: none;
    position: absolute;
    width: 28px;
    top: -6px;
    left: 37px;
}

.home-top{
    padding-top: 80px;
    position: relative;
    height: 670px;
    min-width: 1200px;
    overflow: hidden;
    background: linear-gradient(352deg, #F3F4FF 0%, rgba(255,255,255,0) 100%)
}
.home-top > img{
    position: absolute;
}
.home-top .bg1{
    top: 99px;
    left: 50%;
    margin-left: -197px;
}
.home-top .bg2{
    top: 277px;
    left: 50%;
    margin-left: 196px;
}
.home-top .bg3{
    top: 482px;
    left: 50%;
    margin-left: -134px;
}
.home-top .bg4{
    top: 0px;
    right: 0;
}
.home-top .bg5{
    bottom: 0;
    left: 0;
}
.home-top .qtxt{
    position: absolute;
    white-space: nowrap;
    text-align: left;
}
.qtxt.t1{
    top: 156px;
    left: 3.5%;
}
.qtxt.t2{
    top: 169px;
    /* left: 54.5%; */
    left: 65%;
}
.qtxt.t3{
    top: 260px;
    /* left: 25.5%; */
    left: 40%;
}
.qtxt.t4{
    top: 364px;
    /* left: 14.7%; */
    left: -7%;
}
.qtxt.t5{
    top: 487px;
    /* left: 65.7%; */
    left: 55%;
}
.qtxt.t6{
    top: 537px;
    left: 19.9%;
}
.qtxt.t7{
    top: 672px;
    /* left: 33.1%; */
    left: 12%;
}
.qtxt.t8{
    top: 634px;
    /* left: 73.8%; */
    left: 71%;
}
.qtxt.t9{
    top: 684px;
    left: 82.5%;
}
.qtxt.c1{
    color: #FADBD9;
}
.qtxt.c2{
    color: #C8D0FF;
}
.qtxt.c3{
    color: #B8C2FC;
}
.qtxt.c4{
    color: #CAD2FF;
}
.qtxt.c5{
    color: #FFC6C0;
}
.qtxt.c6{
    color: #B9C4FF;
}
.qtxt.s1{
    font-size: 32px;
}
.qtxt.s2{
    font-size: 28px;
}
.qtxt.s3{
    font-size: 16px;
}
.qtxt.s4{
    font-size: 12px;
}
.qtxt.s5{
    font-size: 10px;
}

.home-top-cont{
    position: relative;
    text-align: center;
    z-index: 9;
}
.home-top-cont h1{
    padding: 140px 0 20px;
    font-size: 58px;
    line-height: 78px;
    font-weight: 400;
}
.home-top-cont h1 p{
    margin-top: 20px;
}
.home-top-cont > p{
    font-size: 24px;
    font-weight: 300;
    line-height: 32px;
    margin-bottom: 60px;
}
.dow-btn2{
    display: inline-block;
    width: 220px;
    height: 60px;
    line-height: 60px;
    background: #001CFF;
    border-radius: 5px;
    text-align: center;
    font-size: 28px;
    color: #FFFFFF;
    letter-spacing: 1px;
    cursor: pointer;
}
.dow-btn2:hover{
    background: #5B6DFF;
}
.home-top-browser{
    position: relative;
    margin-top: 15px;
}
.home-top-browser em{
    font-style: normal;
}
.home-top-browser img:not(.curr-ico){
    width: 40px;
    margin-right: 10px;
    vertical-align: -0.68rem;
}
.home-top-browser .curr-ico{
    display: none;
    position: absolute;
    top: -9px;
}

.download-wrap{
    text-align: center;
    margin-top: 50px;
}
.section-title{
    display: inline-block;
    position: relative;
    height: 42px;
    line-height: 42px;
    font-size: 32px;
    /* padding: 0 43px 0 26px; */
}
.section-title .l,
.section-title .l b,
.section-title .l em,
.section-title .r,
.section-title .r b,
.section-title .r em{
    content: '';
    position: absolute;
    border-radius: 50%;
}
.section-title .l{
    left: -26px;
    top: 0;
    width: 21px;
    height: 21px;
    background: linear-gradient(226deg, #D5DBFD 0%, rgba(213,219,253,0) 100%);
    opacity: 0.34;
}
.section-title .l b{
    left: 2px;
    top: 2px;
    width: 17px;
    height: 17px;
    background: linear-gradient(238deg, rgba(182, 192, 250, 1), rgba(182, 192, 250, 0));
}
.section-title .l em{
    left: 2px;
    top: 2px;
    width: 13px;
    height: 13px;
    background: #fff;
}
.section-title .r{
    right: -43px;
    bottom: 2px;
    width: 33px;
    height: 33px;
    background: linear-gradient(226deg, #FADDDB 0%, rgba(255,255,255,0) 100%);
    opacity: 0.34;
}
.section-title .r b{
    left: 3px;
    top: 3px;
    width: 27px;
    height: 27px;
    background: linear-gradient(238deg, rgba(255, 199, 195, 1), rgba(255, 255, 255, 0));
}
.section-title .r em{
    left: 2px;
    top: 2px;
    width: 23px;
    height: 23px;
    background: #fff;
}

.download-list{
    max-width: 1200px;
    margin: 10px auto 25px;
    display: flex;
    justify-content: space-between;
}
.download-item{
    display: block;
    width: 260px;
    height: 177px;
    padding-top: 35px;
    box-sizing: border-box;
    font-weight: 300;
    cursor: pointer;
}
.download-item:hover{
    background: #FFFFFF;
    box-shadow: 0px 10px 10px 0px rgba(0,0,0,0.06);
}
.download-item img{
    display: block;
    margin: 0 auto;
}
.browser-title{
    margin: 10px auto;
    font-size: 22px;
}
.download-item:not(:hover) .download-ico{
    display: none;
}
.tips{
    display: inline-block;
    padding-left: 25px;
    background: url(../images/ico3.png) 0 center no-repeat;
    height: 21px;
    line-height: 21px;
    font-size: 16px;
    font-weight: 300;
    color: #555555;
}
.tips a:hover{
    text-decoration: underline;
}

.course-wrap{
    width: 1040px;
    margin: 100px auto;
    text-align: center;
}
.course-nav{
    display: flex;
    justify-content: space-between;
    margin: 25px 0 45px;
}
.course-nav_item{
    position: relative;
    height: 38px;
    line-height: 38px;
    font-size: 20px;
    font-weight: 300;
    cursor: pointer;
}
.course-nav_item:hover,
.course-nav_item.on{
    color: #001CFF;
}
.course-nav_item.on::after{
    content: '';
    position: absolute;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 1px;
    background: #001CFF;
}
.course-cont_item{
    text-align: left;
    display: none;
}
.course-cont_item.on{
    display: block;
}
.course-cont_item li + li{
    margin-top: 30px;
}
.course-cont_item b{
    display: block;
    font-size: 20px;
    font-weight: 400;
    line-height: 26px;
    letter-spacing: 1px;
}
.course-cont_item p{
    font-size: 18px;
    font-weight: 300;
    line-height: 24px;
    margin-top: 10px;
}
#course-tips{
    margin-top: 30px;
}

.fun-wrap{
    position: relative;
    width: 1120px;
    margin: 0 auto;
}
.fun-item{
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.fun-item + .fun-item{
    margin-top: 100px;
}
.fun-txt b{
    position: relative;
    display: inline-block;
    height: 48px;
    line-height: 48px;
    font-size: 36px;
    letter-spacing: 1px;
    background-image: linear-gradient(rgba(210, 217, 252, 1) 0%, rgba(210, 217, 252, 1) 100%);
    background-size: 100% 20px;
    background-repeat: no-repeat;
    background-position: 0 bottom;
}
.fun-txt p{
    height: 32px;
    line-height: 32px;
    font-size: 24px;
    font-weight: 300;
    letter-spacing: 1px;
    margin-top: 30px;
}
.fun-item:nth-child(even) .fun-txt{
    order: 1;
}


footer{
    background: rgba(224, 229, 255, 0.3);
    padding: 10px;
    margin-top: 60px;
}
footer p{
    height: 16px;
    line-height: 16px;
    font-size: 12px;
    font-weight: 300;
    color: #555555;
    text-align: center;
}
footer p + p{
    margin-top: 5px;
}
footer a:hover{
    text-decoration: underline;
}