.container{
    background-color: #f3f4f8;
}
.yjy-icon{
    background: url('../images/yjy-icon.png');
}
.yjy-icon-1{
    width: 35px;
    height: 35px;
    background-position: 0 0;
    background-repeat: no-repeat;
}
.yjy-icon-2{
    width: 35px;
    height: 35px;
    background-position: -50px 0;
    background-repeat: no-repeat;
}
.yjy-icon-3{
    width: 35px;
    height: 35px;
    background-position: -100px 0;
    background-repeat: no-repeat;
}
.yjy-icon-4{
    width: 50px;
    height: 45px;
    background-position: 7.5px -50px;
    background-repeat: no-repeat;
}
.yjy-icon-5{
    width: 50px;
    height: 45px;
    background-position: -50px  -50px;
    background-repeat: no-repeat;
}
.yjy-icon-6{
    width: 50px;
    height: 45px;
    background-position: -97.5px -50px;
    background-repeat: no-repeat;
}
.white{
    color: #ffffff !important;
}
.color153{
    color: rgb(153, 153, 153) !important;
}
.line-bar{
    height: 2px;
    width: 20px;
    background-color: #ffffff;
}
.text-overflow-ellipsis-single{
    white-space: nowrap;  
    /* 超出容器时裁剪文本 */  
    overflow: hidden;  
    /* 在裁剪的文本末尾添加省略号 */  
    text-overflow: ellipsis;  
}
.text-overflow-ellipsis{
    overflow: hidden;  
    /* 在裁剪的文本末尾添加省略号 */  
    text-overflow: ellipsis;  
   
}

.letter-spacing-5 {  
    letter-spacing: 5px; /* 增加2像素的间距 */  
}
.letter-spacing-1 {  
    letter-spacing: 1px; /* 增加2像素的间距 */  
}
.title{
    margin: 0 auto 70px auto;
    padding-top: 80px;
    display: flex;
    justify-content: center;
    font-size: 34px;
    font-family: "SourceHanSansCN";
    color: rgb(51, 51, 51);
    font-weight: bold;
    letter-spacing: 2px;
}
.content-desc{
    display: flex;
    justify-content: center;
    font-size: 16px;
    margin-top: -50px;
    font-size: 16px;
    font-family: "SourceHanSansCN";
}
  
  
.section-210{
    width: 100%;
    height: 500px;
    background: url('../images/210-bj.jpg');
    background-repeat: no-repeat;
    background-size: 100% 100%;;
}
.section-210 .section-210-content{
    display: flex;
    justify-content: space-between;
}
.center{
    display: flex;
    justify-content: center;
    align-items: center;
}
.column-center{
    display: flex;
    align-items: center;
}
.row-center{
    display: flex;
    justify-content: center;
}
.dis-space-between-row{
    display: flex;
    justify-content: space-between;
}

.section-210 .content-left .promise{
    font-size: 18px;
    font-family: "SourceHanSansCN";
    color: rgb(255, 255, 255);
    width: 385px;
    height: 52px;
    background: url('../images/yjy-banner-promise.jpg');
    background-repeat: no-repeat;
    background-size: 100% 100%;;
    padding-top: 10px;
    padding-left: 15px;
    box-sizing: border-box;
    letter-spacing: 2px;
}
.section-210 .content-left .teacher{
    font-size: 48px;
    font-family: "Microsoft YaHei UI";
    color: rgb(255, 255, 255);
}
.section-210 .content-left .desc{
    display: flex;
    gap: 25px;
}
.section-210 .content-left {
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 500px;
    gap: 30px;
}
.section-210 .content-left .desc-item{
    font-size: 18px;
    font-family: "SourceHanSansCN";
    color: rgb(255, 255, 255);
    letter-spacing: 2px;
}
.section-210 .content-left .desc-item::before{
    content: '';
    display: inline-block;
    width: 20px;  /* 根据你的图像大小调整 */  
    height: 20px;  /* 根据你的图像大小调整 */  
    margin-right: 8px;  /* 在图标和文本之间添加间距 */  
    background-image: url('../images/yes.png');  /* 替换为你的图像路径 */  
    background-size: contain;  /* 使背景图像适应容器大小，或者使用 cover 以填充容器 */  
    background-repeat: no-repeat;  /* 防止背景图像重复 */  
    vertical-align: middle;  /* 垂直对齐，使图标与文本垂直居中 */ 
}
.section-210 .content-left .btn-teacher{
    width: 165px;
    height: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 30px;
    font-size: 16px;
    font-family: "SourceHanSansCN";
    color: rgb(255, 255, 255);
    background: linear-gradient(to right,#36b0c7,#1b48f1);
    -webkit-border-radius: 30px;
    -moz-border-radius: 30px;
    -ms-border-radius: 30px;
    -o-border-radius: 30px;
}
.section-210 .content-right{
    display: flex;
    flex-direction: column;
    justify-content: end;
} 

.section-211{
    width: 100%;
    height: 550px;
    background-repeat: no-repeat;
    background-size: 100% 100%;;
    
}
.section-211 .section-211-content{
    height: 355px;
    display: flex;
    padding-top: 90px;
    align-items: center;
    justify-content: space-between;
}
.section-211 .section-211-content .content-left{
    width: 580px;
}
.section-211 .section-211-content .content-left .bdqn-title{
    font-size: 30px;
    font-family: "SourceHanSansCN";
    color: rgb(51, 51, 51);
}
.section-211 .section-211-content .content-left .english-dec{
    font-size: 36px;
    font-family: "AaHouDiHei";
    color: rgb(51, 51, 51);
}
.section-211 .section-211-content .content-left .desc-content{
    font-size: 14px;
    font-family: "SourceHanSansCN";
    color: rgb(66, 66, 66);
    line-height: 2;
}

.section-211 .section-211-content .content-right{
    width: 520px;
    height: 330px;
}
.section-211 .section-211-content .content-right .content-right-container{
    width: 100%;
    height: 100%;
}

.section-212{
    width: 100%;
    height: 936px;
    background-repeat: no-repeat;
    background-size: 100% 100%;;
}
.section-212 .section-212-content-result{
    width: 100%;
    height: 647px;
    background-color: #ffffff;
}
.section-212 .section-212-content-result .result-top{
    width: 100%;
    height: 445px;
    
    display: flex;

}
.section-212 .section-212-content-result .result-top .result-top-left{
    width: 478px;
}
.section-212 .section-212-content-result .result-top .result-top-left .result-top-left-item{
    width: 100%;
    height: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    background-color: #fafafa;
}
.section-212 .section-212-content-result .result-top .result-top-left .result-top-left-item.active {  
    background-color:#37b3c6;
    color: #ffffff;
} 
/* .section-212 .section-212-content-result .result-top .result-top-left .result-top-left-item:hover{
    background-color:#37b3c6;
    color: #ffffff;
    
} */
.section-212 .section-212-content-result .result-top .result-top-right{
    width: 50%;

}
.section-212 .section-212-content-result .result-top .result-top-right .books-img{
    object-fit: contain;
}

.section-212 .section-212-content-result .result-bottom{
    width: 100%;
    height: 200px;
    display: flex;
}
.f48{
    font-size: 48px;
}
.f22{
    font-size: 22px;
}
.f20{
    font-size: 20px;
}
.color37b3c6{
    color: #37b3c6;
    height: 40px;
}
.section-212 .section-212-content-result .result-bottom .result-bottom-item{
    width: 25%;
    height: 200px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    border-right: solid 1px #e5e5e5;
}
.section-212 .section-212-content-result .result-bottom .result-bottom-item.active-color{
    background-color:#37b3c6;
    color: #ffffff;
}
.section-212 .section-212-content-result .result-bottom .result-bottom-item.active-color .color37b3c6{
    color: #ffffff;
}

.section-213{
    width: 100%;
    height: 635px;
    background-repeat: no-repeat;
    background-size: 100% 100%;;
    display: flex;
}


.section-213 .section-213-content .row{
  display: flex;
  height: 50%;
  justify-content: space-between;  
}
.section-213 .section-213-content .row .item1{
    width: 400px;
}
.section-213 .section-213-content .row  .item11{
    display: flex;
    padding-left: 30px;
    width: 400px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border-top: 2px solid #63646c;
    padding-right: 20px;
    box-sizing: border-box;
    position: relative;
}
.section-213 .section-213-content .row  .item11::before{
    content: '';
    position: absolute;
    width: 361px;
    height: 315px;
    top: 0px;
    left: -361px;
    background-color:rgb(55, 179, 198,0.9);
}

.section-213 .section-213-content .row  .item11 .item11-title{
    font-size: 34px;
    font-family: "SourceHanSansCN";
    color: rgb(255, 255, 255);
    line-height: 0.882;
}

.section-213 .section-213-content .row  .item11 .item11-desc{
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    font-size: 16px;
    font-family: "SourceHanSansCN";
    color: rgb(255, 255, 255);
    line-height: 2.25;
}
  
.section-213 .section-213-content .left-content-item.active-color{
    background-color:rgb(55, 179, 198,0.9);
    color: #ffffff !important;
}
.section-213 .section-213-content .left-content-item.active-color .item-desc{
    color: #ffffff !important;
}
  .section-213 .section-213-content .row .item{
    width: 270px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 30px 30px 0 30px;
    color: #ffffff;
    /* border: 1px solid #63646c; */
    box-sizing: border-box;
    gap: 15px;
  }
  .section-213 .section-213-content .row .item-border1{
    border-left: 2px solid #63646c;
    border-bottom: 2px solid #63646c;
  }
  .section-213 .section-213-content .row .item-border2{
    border-left: 2px solid #63646c;
    border-right: 2px solid #63646c;
    border-bottom: 2px solid #63646c;

  }

  .section-213 .section-213-content .row .item .item-order{
    position: relative;
    font-size: 24px;
    font-family: "Anton";
    color: rgb(255, 255, 255);
  }
  

  .section-213 .section-213-content .row .item .item-order::after{
    content: '';
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: #37b3c6;
    -webkit-border-radius: 50%;
    position: absolute;
    -moz-border-radius: 50%;
    -ms-border-radius: 50%;
    -o-border-radius: 50%;
    top: -4px;
    left: 8px;
    opacity: 0.5;
    top: 0px;
    left: 20px;
}

.section-213 .section-213-content .row .item .item-title{
    font-size: 24px;
    font-family: "SourceHanSansCN";
    color: rgb(255, 255, 255);
}
.section-213 .section-213-content .row .item .item-desc{
    font-size: 14px;
    font-family: "SourceHanSansCN";
    color: rgb(194, 201, 209);
    line-height: 2;
}

.section-214{
    width: 100%;
    height: 865px;
    background-color: #ffffff;
    box-shadow: 4px 10px 28px rgba(0, 0, 0, 0.1)
}
.section-214 .main-content{
    display: flex;
    justify-content: space-between;
    gap: 0;
}
.section-214 .main-content .menus{
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    background-color: #f5f7fe;
    width: 195px;
    height: 570px;
    gap: 25px;
    padding: 20px 0;
    box-sizing: border-box;
}

.section-214 .main-content .menus-txt{
    font-size: 18px;
    font-family: "SourceHanSansCN";
    color: rgb(51, 51, 51);
}
.section-214 .main-content .menus-order{
    font-size: 16px;
    font-weight: bold;
    font-family: "Anton";
    color: rgb(153, 153, 153);
}
.section-214 .main-content .content-show{
    /* display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    background-color: #f5f7fe; */
    width: 1005px;
    height: 570px;
    box-shadow: 4px 10px 28px rgba(0, 0, 0, 0.1)
}
.section-214 .main-content .menus-item{
    width: 195px;
    height: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
    box-sizing: border-box;
}
.section-214 .main-content .menus-item.active-menu{
    background-color: #cfe9f3;
    border-left: solid 5px #37b3c6;
    cursor: pointer;
}
.section-214 .main-content .menus-item.active-menu .menus-order{
    color: #31aabd;
}
.section-214 .main-content .menus-item.active-menu .menus-txt{
    color: #5abacb;
}
.section-214 .main-content .content-show .content-show-container{
    width: 885px;
    height: 355px;
    margin: 75px 65px 0 55px;
    display: flex;
    justify-content: space-between;
}
.section-214 .main-content .content-show .content-show-container .content-show-desc{
    /* display: flex;
    flex-direction: column;
    justify-content: center; */
}
.section-214 .main-content .content-show .content-show-container .content-show-img{
    display: flex;
    justify-content: end;
    flex-direction: column;
}

.section-214 .main-content .content-show .content-show-container .target-order{
    font-size: 16px;
    font-family: "Anton";
    font-weight: bold;
    color: rgb(153, 153, 153);
}
.section-214 .main-content .content-show .content-show-container .target-content{
    font-size: 24px;
    font-family: "SourceHanSansCN";
    color: rgb(51, 51, 51);
    line-height: 1.25;
}
.section-214 .main-content .content-show .content-show-container .target-line{
    width: 25px;
    height: 2px;
    background-color: #37b3c6;
}
.section-214 .main-content .content-show .content-show-container .target-desc{
    font-size: 14px;
    font-family: "SourceHanSansCN";
    color: rgb(51, 51, 51);
    line-height: 2.143;
}
.section-214 .main-content .content-show .content-show-container .target-link{
    display: flex;
    gap: 20px;
    justify-content: space-between;
}
.section-214 .main-content .content-show .content-show-container .target-link .btn{
    width: 130px;
    height: 45px;
    background-color: #3fbbce;
    color: #ffffff;
    display: flex;
    font-size: 14px;
    border-radius: 5px;
    justify-content: center;
    align-items: center;
    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    -ms-border-radius: 5px;
    -o-border-radius: 5px;
}
.section-214 .main-content .content-show .content-show-container .target-link .btn-more{
    width: 130px;
    height: 45px;
    display: flex;
    border: 1px solid #f1f1f1;
    font-size: 14px;
    border-radius: 5px;
    justify-content: center;
    align-items: center;
    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    -ms-border-radius: 5px;
    -o-border-radius: 5px;
}
  

.section-215{
    height: 795px;
    background-repeat: no-repeat;
    background-size: 100% 100%;;
    display: flex;
}

.section-215 .content-card{
    display: flex;
    justify-content: space-between;
}
.section-215 .content-card .content-card-item{
    width: 380px;
    height: 485px;
    padding: 30px 35px ;
    box-sizing: border-box;
    border-radius: 10px;
    background-color: #ffffff;
    -webkit-border-radius: 10px;
    -moz-border-radius: 10px;
    -ms-border-radius: 10px;
    -o-border-radius: 10px;
}
.section-215 .content-card .content-card-item .card{
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 30px
}
.section-215 .content-card .content-card-item .card img{ 
    width: 100%;
}
.section-215 .content-card .content-card-item .card .card-desc-target{
    font-size: 22px;
    font-family: "SourceHanSansCN";
    color: rgb(13, 18, 24); 
}
.section-215 .content-card .content-card-item .card .card-desc{
    font-size: 14px;
    font-family: "SourceHanSansCN";
    color: rgb(102, 102, 102);
    line-height: 2;
    height: 170px;
    overflow: auto;
}
.section-215 .content-card .content-card-item  .card-desc-target{
    display: flex;
    align-items: center;
    gap: 15px;
}

.section-216{
    width: 100%;
    height: 720px;
    background-repeat: no-repeat;
    background-size: 100% 100%;;
    display: flex;
}
.section-216 .content-main{
    display: flex;
    justify-content: space-between;
    gap: 10px;
    margin-top: 56px;
}
.section-216 .content-left{
    padding-top: 80px;
    padding-bottom: 70px;
    width: 490px;
    height: 350px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.section-216 .content-left .content-left-top{
    font-size: 14px;
    font-family: "SourceHanSansCN";
    color: rgb(51, 51, 51);
    line-height: 2;
}

.section-216 .content-left .content-left-bottom{
    height: 140px;
    display: flex;
    /* flex-direction: column; */
    justify-content: space-between;
}

.section-216 .content-left .content-left-bottom .card-item{
    height: 140px;
    width: 140px;
    
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 10px;
}
.section-216 .content-left .content-left-bottom .item1{
    border: 1px solid rgb(195, 204, 251);
    background-color: rgb(236, 239, 255);
}
.section-216 .content-left .content-left-bottom .item2{
    border: 1px solid rgb(166, 233, 225);
    background-color: rgb(230, 247, 245);
}
.section-216 .content-left .content-left-bottom .item3{
    border: 1px solid rgb(255, 210, 157);
    background-color: rgb(253, 242, 233);
}
.section-216 .content-left .content-left-bottom .item1 .item1-ai{
    font-size: 18px;
    font-family: "SourceHanSansCN";
    color: rgb(42, 127, 243);
}
.section-216 .content-left .content-left-bottom .item1 .item1-desc{
    font-size: 14px;
    font-family: "SourceHanSansCN";
    color: rgb(42, 127, 243);
}
.section-216 .content-left .content-left-bottom .item2 .item2-yun{
    font-size: 18px;
    font-family: "SourceHanSansCN";
    color: rgb(66, 169, 157);
}
.section-216 .content-left .content-left-bottom .item2 .item2-online{
    font-size: 14px;
    font-family: "SourceHanSansCN";
    color: rgb(66, 169, 157);
}
.section-216 .content-left .content-left-bottom .item3 .item3-yun{
    font-size: 18px;
    font-family: "SourceHanSansCN";
    color: rgb(221, 116, 24);
}
.section-216 .content-left .content-left-bottom .item3 .item3-sys{
    font-size: 14px;
    font-family: "SourceHanSansCN";
    color: rgb(221, 116, 24);
}
.section-216 .content-right{
    /* height: 100%; */
    /* width: 885px; */
    padding-bottom: 70px;
    display: flex;
    justify-content: end;
    flex-direction: column;
    align-items: center;
   
}
.w1300{
    width: 1300px;
    margin: 0 auto;
}
.section-216 .content-right .content-right-bottom{
    background: #ffffff;
    width: 540px;
    height: 120px;
    padding: 25px 45px 20px 25px;
    margin-left: 54px;
    display: flex;
    justify-content: space-between;
    box-sizing: border-box;
    border-radius: 10px;
    -webkit-border-radius: 10px;
    -moz-border-radius: 10px;
    -ms-border-radius: 10px;
    -o-border-radius: 10px;
}
.section-216 .content-right .content-right-bottom .item{
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.section-216 .content-right .content-right-bottom .item .item-title{
    font-size: 14px;
    font-family: "SourceHanSansCN";
    color: rgb(102, 102, 102);
}
.section-216 .content-right .content-right-bottom .item .item-title{
    font-size: 14px;
    font-family: "SourceHanSansCN";
    color: rgb(102, 102, 102);
}
.section-216 .content-right .content-right-bottom .item .item-num{
    font-size: 30px;
    font-family: "Anton";
}
.blue{
    color: rgb(49, 112, 255);
}

/* 视频弹出框样式 */  
.video-popup {  
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 998;
    display: none;
    /* width: 80%; */
    /* max-width: 800px; */
    /* height: auto; */
    width: 100vw;
    overflow: hidden;
    height: 100vh;
}  
  
.overlay {  
    position: absolute;  
    top: 0;  
    left: 0;  
    width: 100vw;  
    height: 100vh;  
    background-color: rgba(0, 0, 0, 0.67);  
    cursor: pointer;  
}  
  
.video-content {  
    width: 858px;
    height: 454px;
    top: 50%;
    left: 50%;
    position: relative;
    background-color: white;
    /* padding: 20px; */
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transform: translate(-50%, -50%);
}  
  
#video_player {  
    width: 100%;  
    height: auto; /* 高度自适应 */  
}  
  
.close-btn-large {  
    position: absolute;  
    top: 10px;  
    right: 10px;  
    font-size: 34px;  
    cursor: pointer;  
    color: #aaa;  
    transition: color 0.3s; 
    z-index: 2; 
}  
  
/* .close-btn-large:hover {  
    color: #000;  
} */