.big-screen{height:100%}.big-screen .main{position:relative;left:0;top:0;z-index:10;margin:0 auto;color:#fff;background:url(../img/bg.d105333c.jpg);background-size:100% 100%}.introduction{width:65vw;height:85vh;background-color:#fff;padding:10px;margin:20px auto;display:-webkit-box;display:-ms-flexbox;display:flex}.introduction .leftMenu{width:25%}.introduction .leftMenu .menuTitle{width:100%;height:60px;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;border:2px solid #0186d1}.introduction .leftMenu .menuTitle .menuTitle-text{margin:0 auto;font-size:21px;font-family:SourceHanSansCN-Regular;color:#000;font-weight:700}.introduction .leftMenu .menu{width:100%}.introduction .leftMenu .menu .ant-menu-item,.introduction .leftMenu .menu .ant-menu-submenu-title{font-size:18px;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;margin:0;border:1px solid #ccc;height:60px;-webkit-box-align:center;-ms-flex-align:center;align-items:center}.introduction .leftMenu .menu .ant-menu-submenu-selected{background-color:#e6f7ff}.introduction .rightContent{width:75%;padding:0 20px 0 40px}.introduction .rightContent .contentTitle{width:100%;height:45px;text-align:right;position:relative;border-bottom:1px solid #d2d2d2;margin-bottom:33px;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:end;-ms-flex-pack:end;justify-content:flex-end}.introduction .rightContent .contentTitle h3{float:left;height:35px;color:#0186d1;font-size:15px;position:absolute;top:10px;left:0;font-size:16px;font-weight:400;padding:0 8px;border-bottom:2px solid #0186d1}