/* 交易產品 start */
a{color: #333}
.solution_box {
    margin-bottom: 100px;
}
.solution_img img {
    /*width: 50%;
    height: 50%;*/
    margin: auto;
}
/* 交易產品 end */

/* 交易平台 start */
.extend_box {
    width: 100%;
    /*min-height: 500px;*/
    background: url(../image/extend_bg.png) no-repeat;
    background-size: 100% 100%;
    background-color: #13202d;
}
.extend_content {
    display: flex;
    justify-content: space-between;
    padding:80px 0;
}
.extend_content_item {
    /*width: 50%;*/
    color: #FFFFFF;
    box-sizing: border-box;
    text-align: center;
    /*border: 2px solid #fcb03b;*/
    padding: 25px 0;
    border-radius: 5%;
}

.extend_content_item a {
    color: #FFFFFF;
}

.extend_content_item a:hover {
    color:#ffd164;
    }

.icon_box {
    width: 85px;
    height: 85px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 35px;
}
.extend_content_title {
    width: 360px;
    height: 40px;
    margin:  auto;
    font-size: 22px;
    font-weight: bold;
    line-height: 32px;
    white-space: nowrap;
}
.extend_content_desc {
    width: 360px;
    margin:  auto;
    font-size: 16px;
    line-height: 30px;
    overflow: hidden; /* 确保内容超出容器时会被隐藏 */
    display: -webkit-box; /* 使用弹性盒子布局模型 */
    -webkit-line-clamp: 2; /* 限制在两行 */
    -webkit-box-orient: vertical; /* 垂直排列盒子 */
    text-overflow: ellipsis; /* 多余的文本用省略号表示 */
    white-space: normal; /* 允许文本换行 */
}
/* 交易平台 end */

/* 教学专区 start */
.extend_box1 {
    width: 100%;
    min-height:500px;
    background: url(../image/teaching.png) no-repeat;
    background-size: 100% 100%;
    background-color: #13202d;
}
.extend_content1 {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}
.extend_content_item1 {
    /*flex: 0 0 50%; */
    box-sizing: border-box;
    padding: 10px;
    display: flex;
    justify-content: center;
    margin: 30px 0;
}

.extend_content_item1 a {
    color: #FFF;
}

.extend_content_item1 a:hover {
    color:#fcb03b;
    }

.icon_box1 {
    width: 105px;
    height: 105px;
}
.extend_content_title1 {
    width: 300px;
    font-size: 20px;
    font-weight: bold;
}
.extend_content_desc1 {
    width: 300px;
    height: 70px;
    margin:  auto;
    font-size: 14px;
    line-height: 24px;
}
/* 教学专区 end */

/* 优势 start */
.extend_box2 {
    width: 100%;
    min-height:500px;
    /*background: url(../image/teaching.png) no-repeat;
    background-size: 100% 100%;
    background-color: #13202d;*/
}
.extend_content2 {
    display: flex;
    flex: 0 0 0 0;
    justify-content: center;
}
.extend_content_item2 {
    /*flex: 0 0 50%; */
    box-sizing: border-box;
    padding: 10px;
    display: flex;
    justify-content: center;
    margin: 30px 0;
}

.extend_content_item2 a {
    color: #FFF;
}

.extend_content_item2 a:hover {
    color:#fcb03b;
    }

.icon_box2 {
    width: 100%;
    border-radius: 10px;
    position: relative;
    text-align: center;
}
.icon_box2 img{
    width: 100%;
    border-radius: 10px;
}
.icon_box2 .text{
   position: absolute;
   bottom: 20px;
   left: 50%;
   transform: translate(-50%, -50%);
   padding:10px 30px;
   width:80%;

}
.extend_content_title2 {
    width: 100%;
    font-size: 20px;
    font-weight: bold;
}
.extend_content_desc2 {
    width: 100%;
    height: 50px;
    margin:  auto;
    font-size: 14px;
    line-height: 24px;
}
/* 教学专区 end */

/* 市場消息 start */
.precise_operation_box {
    margin-bottom: 50px;
}
.operation_content {
 display: flex;
 justify-content: space-between;
 /* align-items: center; */
}
.operation_content_left{
    width:600px;
}

.num_box {
    display: flex;
    align-items: center;
    margin-bottom: 56px;
    cursor: pointer;
}
.num_box .num {
    width: 56px;
    height: 56px;
    background: #DCDCDC;
    text-align: center;
    line-height: 56px;
    color: #FFFFFF;
    font-size: 30px;
}
.num_box:hover .num {
    background: #583015;
}
.num_box .text_box {
    margin-left: 15px;
    flex: 1;
}
.num_box .text_box div:nth-child(1) {
    color: #212121;
    font-size: 18px;
    line-height: 32px;
}
.num_box .text_box div:nth-child(2) {
    color: #999999;
    font-size: 14px;
                overflow: hidden;
                text-overflow: ellipsis;
                display: -webkit-box;
                -webkit-line-clamp: 2;
                -webkit-box-orient: vertical;
}
.operation_content_right {
    width: 650px;
    height: 420px;
    /*margin-left: 90px;*/
    margin-left: 20px;
    position: relative;
    overflow: hidden;
}
.operation_content_img {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    display: none;
    /* left: 30px; */
    /* opacity: .7; */
    /* transform: translateX(30px); */
    /* transition: all 1s; */
}
.operation_content_img img {
    width: 100%;
    height: 100%;
}
.img_text {
    width: 570px;
    height: 70px;
    background: #004AA8;
    position: absolute;
    bottom: 0;
    color: #FFFFFF;
    font-size: 18px;
    line-height: 70px;
    padding-left: 40px;
}
.selected {
    display: block;
    /* left: 0; */
    /* opacity: 1; */
    /* transform: translateX(0px); */
}
.topsubtitle{
    text-align: center; 
    min-height:60px; 
    line-height:60px;
    display: flex;
    justify-content: center;
}
.topsubtitle a{
   padding: 0px 20px; color: #5a5a5a;
}
.topsubtitle a:hover{
   color: #583015;
}
/* 市場消息 end */


/* 教學專區 start */
.fission_box {
    width: 100%;
    height: 710px;
    background: url(../image/fission_bg.jpg) no-repeat;
}
.fission_content {
    width: 1200px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}
.fission_content_item {
    display: flex;
    align-items: center;
    margin-bottom: 90px;
}
.fission_icon_box {
    width: 82px;
    height: 82px;
    background: #FFFFFF;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
}
.fission_icon_text {
    color: #FFFFFF;
    margin-left: 15px;
}
.fission_icon_text a {
    color: #FFFFFF;
}
.fission_icon_text a:hover {
    color:#fff292;
}
.fission_icon_text div:nth-child(1) {
    font-size: 20px;
    margin-bottom: 6px;
}
.fission_icon_text div:nth-child(2) {
    font-size: 14px;
    width: 440px;
    line-height: 24px;
}
/* 教學專區 end */


/* 我们的优势 start */
.advantage_content {
    display: flex;
    margin-bottom: 150px;
}
.advantage_content_item {
    width: 25%;
    height: 460px;
    position: relative;
    overflow: hidden;
}
.advantage_content_item img {
    width: 320px;
    height: 480px;
}
.advantage_mask {
    width: 100%;
    height: 75px;
    background-color: rgba(0, 0, 0, .6);
    position: absolute;
    bottom: 0;
    font-size: 24px;
    color: #FFFFFF;
    text-align: center;
    line-height: 75px;
}
.advantage_text_box {
    width: 100%;
    /* height: 460px; */
    height: 0;
    background-color: #29120ad6;
    position: absolute;
    bottom: 0;
    z-index: 10;
    color: #FFFFFF;
    text-align: center;
    padding: 0 26px;
    box-sizing: border-box;
    display:none;
    display:block; 
}
.advantage_text_content {
    width: 100%;
    height: 100%;
    display: none;
    margin-top: 180px;
}
.advantage_text {
    font-size: 30px;
    margin-bottom: 15px;
} 
.advantage_desc {
    font-size: 16px;
    line-height: 28px;
}
/* 我们的优势 end */
.open_kbtn{
    display: none;
    padding: 10px 20px;
    background: #144fdb;
    width: 120px;
    margin: 10px auto;
    text-align: center;
    color: #ffffff;
    border-radius: 20px;
}
@media screen and (max-width: 750px) {
    .open_kbtn{
        display: block;
    }
    .fission_content{
        width: unset;
        display: block;
    }
    
    .fission_icon_text div:nth-child(2){
        width: unset;
    }
    
    .extend_content_desc{
        width: unset;
    }
    .extend_content_title{
        width: 100px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    #iframe{
        height: 400px;
    }
    .top_title div,.top_title_white div{
        font-size: 16px;
        margin: 0 10px;
    }
    .extend_box{
        width: unset;
        height: 340px;
    }
    .icon_box{
        width: 60px;
    }
    .icon_box img{
        width:100%;
    }
    .extend_content_item {
     width: 50%; 
    color: #FFFFFF;
    box-sizing: border-box;
    text-align: center;
    border: none;
    padding: 25px 0;
    border-radius: 5%;
    }
    .extend_content{
        padding:10px;
        min-height: 200px
    }
    .operation_content{
        display: block;
    }
    .operation_content_left{
        width: unset;
    }
    .top_title_box{
        padding: 40px 0 20px;
    }
    .operation_content_right{
        width: 100%;
        margin-left: unset;
    }
    .advantage_content{
        display: flex;
        flex-wrap: wrap;
        margin-bottom: 40px;
    }
    .advantage_mask{
        font-size: 16px;
    }
    .advantage_content_item{
        width: 50%;
        margin-bottom: 10px;
        height: 60vw;
        flex-wrap: wrap;
    }
    .advantage_text_content{
        margin-top: 10px;
    }
    .advantage_text_box{
        padding: 0 6px;
    }
    .advantage_text{
        font-size: 16px;
    }
    .advantage_desc{
        font-size: 12px;
        line-height: 20px;
    }
    .fission_box{
            width: 100%;
            padding-bottom: 20px;
        height:unset;
    background: url(../image/fission_bg.jpg) no-repeat;
    background-size: cover;
    }
    .top_title_box_white{
        padding: 50px 0 30px;
    }
    .top_title_box .topsubtitle div img{
        width:100%;
    }
    
    .advantage_content_item img{
        width: 100%;
        height: 100%;
    }
    #iframe,#iframe_k,.operation_content_right{
        display: none;
    }
    .num_box .text_box div:nth-child(1){
        font-size: 16px;
        line-height: 22px;
    }
    .num_box .text_box div:nth-child(2){
        font-size: 12px;
    }
    .num_box{
        margin-bottom: 24px;
    }
    .fission_content_item{
        margin-bottom: 30px;
    }
    .fission_icon_box{
        width: 62px;
        height: 62px;
    }
    .fission_icon_text div:nth-child(1){
        font-size: 18px;
    }
    .extend_content2 {
        display: block;
        flex: 0 0 0 0;
        justify-content: center;
    }
    
    .extend_content1 {
        width: 320px;
        display: flex;
        justify-content: start;
    }
    .extend_box1{
        background-size:auto 100%;
    }

    .downloaditem{
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }

}