.exp-content .exp-container{
    width:1200px;
    height:100%;
    overflow:hidden;
    margin:0 auto;
    position: relative;
}
/* 左选择栏 */
.exp-content .exp-container .content-l{
    width: 240px;
    padding-top:20px;
    overflow:hidden;
    float:left; 
    display:inline;
    background: #f6fafd;
    -moz-box-shadow: unset;
    box-shadow: unset;
    border-bottom: 0;
    position: relative;
    /*display: none;*/
}
.exp-container .content-l dt{
    margin:52px 0 20px 0;
    padding-left: 50px;
    overflow: hidden;
    text-overflow:ellipsis;
    white-space: nowrap;
}
.exp-container .content-l dd{
    border: 0;
    padding: 10px 15px;
    margin: 0 20px 10px;
    height: 20px;
    line-height: 20px;
    font-size: 16px;
    border-radius: 4px;
    border-color: #ebeef3;
    background-color: #ebeef3;
    background: #ebeef3;
}
.exp-container .content-l .on::after {
    border-color: #4365ed;
    background-color: #4365ed;
    background: #4365ed;
    color: #fff;
}
.content-r{
    width: calc(100% - 300px);
    padding:20px;
    float:right;
    margin-left: 20px;
    /*margin-left: auto;*/
    /*margin-right: auto;*/
}
.opt-btn{  
    padding:8px;  
    color: #d9eef7!important;
    border: solid 1px #0076a3;
    background: #0095cd;
    background: -webkit-gradient(linear, left top, left bottom, from(#00adee), to(#611e6d));
    background: -moz-linear-gradient(top, #00adee, #0078a5);
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#00adee', endColorstr='#0078a5');
    outline: none;
    cursor: pointer;
    text-decoration: none!important;
    text-shadow: 0 1px 1px rgba(0,0,0,.3);
    -webkit-border-radius: .5em;
    -moz-border-radius: .5em;
    border-radius: .5em;
    -webkit-box-shadow: 0 1px 2px rgba(0,0,0,.2);
    -moz-box-shadow: 0 1px 2px rgba(0,0,0,.2);
    box-shadow: 0 1px 2px rgba(0,0,0,.2);
}
.opt-btn:hover{
    background: #007ead;
    background: -webkit-gradient(linear, left top, left bottom, from(#0095cc), to(#1A2DDF));
    background: -moz-linear-gradient(top, #0095cc, #00678e);
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#0095cc', endColorstr='#00678e');
}