* {
    margin: 0;
    padding: 0;
}

html,
body {
    width: 100%;
    height: auto;
    min-width: 1250px;

}

video {
    width: 100%;
    height: 100%;
    background-color: #000;
}

input[type="radio"] {
    border: 0px;
    /* 如果要去掉边框，可以设置为0 */
    border-radius: 50%;
    /* 使得radio呈现圆形 */
    width: 16px;
    /* 设置radio的宽度 */
    height: 16px;
    /* 设置radio的高度 */
    outline: none;
    /* 去掉聚焦时的边框 */
    box-shadow: none;
    /* 去掉阴影效果 */
    background-color: #fff;
    /* 设置背景颜色 */
    margin: 0;
    /* 可以根据需要调整margin */
    padding: 0;
    /* 可以根据需要调整padding */
}

li {
    list-style: none;
    padding: 0;
    margin: 0;
}

.swiper-button-prev,
.swiper-button-next {
    width: 40px;
    height: 40px;
    background: #FFA94A;
    color: #fff;
}

.swiper-button-next:after,
.swiper-button-prev:after {
    font-size: 26px;
    font-weight: bold;
}


.swiper-pagination-bullet-active {
    background: #FF7723;
}

.pageModel {
    width: 100%;
    height: auto;
    position: relative;
    overflow: hidden;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    transform: translate(0);
}

.pageModel_content {
    margin: auto;
    font-size: 12px;
    width: 1200px;
    min-width: 1100px;
    position: relative;
    overflow: hidden;
}


.title_box {
    width: auto;
    margin: auto;
    text-align: center;
    color: #3C4467;
    font-family: AlibabaPuHuiTi;
    font-size: 38px;
    font-weight: bold;
    line-height: normal;
    letter-spacing: 0em;
}

.title_img {
    width: 109px;
    height: 16px;
    margin: auto;
    background-image: url("../images/researchCourse/icon.png");
    background-repeat: no-repeat;
    background-size: 100%;
    margin-top: 5px;
}

.title_describe {
    width: 100%;
    line-height: 28px;
    color: #3C4467;
    font-size: 18px;
    margin-top: 20px;
    text-align: left;
    color: #3C4467;
    font-family: AlibabaPuHuiTi;
    font-weight: normal;
}

.model1 {
    width: 100%;
    height: 756px;
    position: relative;
}

.model1_content {
    width: 100%;
    height: 340px;
    padding-top: 30px;
    padding-bottom: 40px;
    background: rgba(26, 26, 26, 0.85);
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
}

.model1_content_info {
    width: 1200px;
    height: 100%;
    margin: auto;
}

.model1_content_info img {
    width: 160px;
    margin-left: 18px;
}

.model1_text {
    width: 460px;
    height: 66px;
    color: #FFFFFF;
    font-feature-settings: "kern"on;
    font-size: 46px;
    font-weight: bold;
    margin-top: 10px;
    text-align: center;
    border-bottom: 31px solid #3B5813;
}

.model1_info {
    width: 300px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    background: #FFFFFF;
    border-radius: 30px;
    color: #064F2E;
    font-size: 32px;
    margin-top: 70px;
    margin-left: 18px;
}

.model2 {
    width: 100%;
    max-width: 1500px;
    height: auto;
}

.model2 img {
    width: 100%;
    height: auto;
    margin-top: -6px;
}

.model3 {
    width: 100%;
    max-width: 1500px;
    height: auto;
    padding-top: 70px;
}

.model3_sel {
    width: 96%;
    height: auto;
    display: flex;
    margin: auto;
    justify-content: space-between;
    margin-bottom: 56px;
}

.model3_sel_box {
    width: 10.5%;
    height: auto;
}

.model3_sel_box input[type="radio"]{
    display: none;
}

.model3_sel_item {
    width: 100%;
    background: #FFFFFF;
    box-shadow: 0px 4px 10px 0px rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    padding-top: 10%;
    padding-bottom: 15%;
    cursor: pointer;
    transition: all 0.5s;
}

.model3_sel_item:hover{
    background-color: aliceblue;
}

.model3_sel_box input[type="radio"]:checked + .model3_sel_item {
    background: #88B751 !important;
}

.model3_sel_item img {
    width: 50%;
    height: 50px;
    display: block;
    margin: auto;
    object-fit: contain;
}

.model3_sel_item span {
    width: 100%;
    display: block;
    text-align: center;
    color: #000000;
    font-size: 24px;
    margin-top: 10px;
}

.model3_img {
    width: 96%;
    height: auto;
    margin: auto;
    margin-bottom: 80px;
}

.model3_img img {
    width: 100%;
    height: auto;
}
.model4{
    width: 100%;
    max-width: 1600px;
    height: auto;
}
.model4_img{
    width: 100%;
    height: auto;
    margin-bottom: 80px;
}
.model5{
    width: 100%;
    max-width: 1600px;
    height: auto;
}
.model5_img{
    width: 100%;
    height: auto;
    margin-bottom: 60px;
}