#cad .cad-top{height:50px;width:100%;background-color:#efefef;line-height:50px;font-size:14px}#cad .cad-top .title{float:left}#cad .cad-top .nav{float:right}#cad .cad-top .nav>a{display:inline-block;color:#352d2b;padding:0 20px}#cad .cad-top .nav>a.active{color:#7e8c8d}#cad .cad-top .nav>a:hover{color:#7e8c8d}#cad .video{width:100%;min-height:700px}#cad .video .container{min-height:700px}#cad .video .container .list{width:200px;margin-top:50px;float:left}#cad .video .container .list .title{font-size:20px;margin-bottom:20px}#cad .video .container .list .list-item .sub-title{height:40px;line-height:40px;font-size:15px;cursor:pointer;color:#000;padding-left:10px;font-weight:bold}#cad .video .container .list .list-item .sub-title.up{background:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAGCAYAAAD68A/GAAAABGdBTUEAALGPC/xhBQAAACBjSFJNAAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAABmJLR0QAAAAAAAD5Q7t/AAAACXBIWXMAAAsSAAALEgHS3X78AAAAlUlEQVQI103NoW4CQRCA4W9pQ4Ks42EOWUzFOpIqkjXN9gmQ4PoC5JKKC5Jw6kRNsbxFU4HD1ZOQYvYI42b+L5ngbuqmC/go6yKn+N+3cIcesMZbOX3iPad4ucG66YbY4BV/BT5hi3lO8RzqphuhxQtOmBb4jTG+MHvErqAjnnOKP+VLhX1p7QBLHDDpEeQUf1GVtroCW9MmzNl+N+8AAAAASUVORK5CYII=) no-repeat right center;background-size:10px 6px}#cad .video .container .list .list-item .sub-title.down{background:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAGCAMAAADNLv/0AAAABGdBTUEAALGPC/xhBQAAACBjSFJNAAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAASFBMVEUAAACXnrGXnrGXnrGXnrGXnrGXnrGXnrGXnrGXnrGXnrGXnrGXnrGXnrGXnrGXnrGXnrGXnrGXnrGXnrGXnrGXnrGXnrEAAABPYbubAAAAFnRSTlMANcMbHDS03yQK5y0JBqfupgOZmAGJeGg2ggAAAAFiS0dEAIgFHUgAAAAJcEhZcwAACxIAAAsSAdLdfvwAAAA8SURBVAjXHcpRAoAQFAXRSfWIhOLuf6mp8zM/w+JWps3tmHyA4GUcpphSlJ2QL5Wimr+t3dLT+PUx+swLPcgCJn6lWswAAAAASUVORK5CYII=) no-repeat right center;background-size:10px 6px}#cad .video .container .list .list-item .content>a{padding-left:20px;display:block;font-size:14px;min-height:35px;line-height:35px;color:#352d2b}#cad .video .container .list .list-item .content>a:hover{background-color:#f8e8e9}#cad .video .container .video-list{width:940px;float:right;margin-top:50px;font-size:0}#cad .video .container .video-list .video-title{font-size:20px;margin-bottom:20px;font-weight:600}#cad .video .container .video-list .video-item{width:33.33%;float:left}#cad .video .container .video-list .video-item .text{height:50px;line-height:50px;text-align:center;font-size:15px}