body {
    background-color: #ffffff !important;
}

/* banner */
.banner-wrap {
    position: relative;
}

.banner, .banner-wrap {
    height: calc(100vw / 2.2);
}

.banner-wrap {
    width: 100%;
    background-repeat: no-repeat;
    background-size: 100% 100%;
    transition: all .5s;
    position: absolute;
    top: 0;
    left: 0;
}
.banner-wrap-left{
    width:30%;
}
.banner-wrap-right {
    width: 70%;
    background-image: url("../image/2307/banner-right.png");
    background-size: 100% 100%;
    position: absolute;
    right: 0;
    height: 100%;
}
.banner-title {
    font-size: 36px;
    font-weight: bold;
    position: absolute;
    top: 35%;
    left: 9%;
}
.banner-text {
    position: absolute;
    top: 60%;
    left: 9%;
    font-size: 36px;
}
.banner-download-btn {
    position: absolute;
    top: 70%;
    left: 9%;
    font-size: 20px;
    width: 230px;
    background-color: #ff6c6c;
    color: white;
    border-radius: 30px;
    line-height: 60px;
    text-align: center;
}
.download1 .section-top-title {
    background-image: url(../image/2307/download-title1.png);
    background-repeat: no-repeat;
    background-position: center;
    font-size: 30px;
    text-align: center;
    margin-bottom: 20px;
}

.section {
    /*padding: 40px;
    box-shadow: 0px 0px 15px 0px #fdc7c6;*/
}
.section-content-download1 {
    display: grid;
    position: relative;
    grid-gap: 20px;
    grid-template-columns: repeat(4, 1fr);
    padding: 30px 0 0px;
}
.section-content .section-content-item {
    position: relative;
    overflow: hidden;
    border-radius: 5px;
    height: 100%;
}
.teacher{
    padding:20px;
}
.teacher-img{
    text-align:center;
}
.teacher img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
}
.teacher-name {
    font-size: 24px;
    text-align: center;
}
.tips {
    width: 100%;
    height: 30px;
    color: #ff6c6c;
    text-align: center;
    margin-bottom: 15px;
}
.tips-item {
    float: left;
    background-color: white;
    width: 30%;
    margin: 0 10%;
}
.line {
    border: 1px solid #ffdcdc;
}
.teacher-intro {
    font-size: 20px;
    text-align: center;
    margin-top: 15px;
}
.teacher-bottom {
    text-align: center;
    padding-top: 30px;
}
.download1 .section-content-item,
.download2 .section-content-item
{
    padding: 20px;
    background-color: #fff8f8;
}
.download1{
    margin-bottom:20px;
}
.download3 .section-top-title {
    background-image: url(../image/2307/download-title2.png);
    background-repeat: no-repeat;
    background-position: center;
    font-size: 30px;
    text-align: center;
    margin-bottom: 20px;
}
.section-content-download3 {
    display: grid;
    position: relative;
    grid-gap: 20px;
    grid-template-columns: repeat(3, 1fr);
    padding: 30px 0 0px;
}
.download3 .section-content-item {
    box-shadow: 0px 0px 5px 0px lightgrey;
}
.windows-img-left {
    float: left;
    padding-right: 10px;
    padding-top: 25px;
    padding-left: 10px;
}
.windows-name {
    float: left;
    font-size: 20px;
    padding-right: 10px;
    padding-top: 30px;
}
.windows-name span{
    color:lightgray;
    font-size:18px;
}
.download3 {
    margin-top: 80px;
}
.windows {
    height: 100px;
}
.windows-img-right {
    padding-top: 30px;
    cursor: pointer;
}
.download4 .section-top-title {
    background-image: url(../image/2307/course-bottom.png);
    background-repeat: no-repeat;
    background-position: center;
    font-size: 30px;
    text-align: center;
    margin-bottom: 20px;
}
.download4 {
    background-image: url(../image/2307/course-bg.png);
    background-repeat: no-repeat;
    background-position: center;
    background-size: 100% 100%;
    margin-top: 10px;
    padding-top: 100px;
    padding-bottom:100px;
}
.download4 .section-content-item{
    background-color:white;
}
.course-download {
    font-size: 20px;
}
.course-download a {
    background-color: #fff1ef;
    color: #ff6c6c;
    width: 150px;
    padding: 10px 20px;
    border-radius: 20px; cursor:pointer;
}
.course-download2 {
    font-size: 16px;
}
.course-download2 a {
    cursor:pointer; background-color: #fff1ef;
    color: #ff6c6c;
    width: 120px;
    padding: 10px 20px;
    border-radius: 20px;
}
.courser-left {
    float:left;
    width:50%;
}
.course-right {
    text-align: center;
    width: 50%;
    float: left;
}
.courser-left img{
    width:100%;
}
.course-title {
    font-size: 24px;
    text-align: center;
    padding: 23px;
}
.course-title2 {
    font-size: 20px;
    text-align: center;
    padding: 13px;
}
.section-content-download4 {
    display: grid;
    position: relative;
    grid-gap: 20px;
    grid-template-columns: repeat(3, 1fr);
    padding: 30px 0 0px;
}
.section-content-download5 {
    display: grid;
    position: relative;
    grid-gap: 20px;
    grid-template-columns: repeat(4, 1fr);
    padding: 30px 0 0px;
}
.section-content-download6 {
    display: grid;
    position: relative;
    grid-gap: 20px;
    grid-template-columns: repeat(3, 1fr);
    padding: 30px 0 0px;
}
.section-line {
    height: 30px;
    padding-top: 30px;
}
.section-line-img{
    float:left;
}
.section-line-title{
    height:30px;
    float:left;
    font-size:24px;
}
.section-line-img1 {
    float: left;
}
@media screen and (max-width: 1200px) {
    .banner-wrap li {
        height: calc(1200px / 2.4);
    }
}