.left-box{
    width: 300px;
    min-height: 500px;
    background-color: #fff;
}
.right-box{
    width: calc(100% - 316px);
    min-height: 500px;
    background-color: #f2f2f2;
}
.book-list .selected,.book-list .book-item:hover{
    border-left: 3px solid;
    border-left-color: #2b99ff;
    background: rgba(35,184,255,.1);
}
.book-list .selected a,.book-item:hover a{
    color: #2b99ff;
}
.type-link{
    color: #333;
    padding: 0.5rem!important;
}
.type-link:hover ,.right-box .focus{
    color: #fff;
    background-color: #2b99ff;
}
.right-box .border-bottom{
    border-bottom-color: #2b99ff!important ;
}
.choose-year{
    display: none;
    position: absolute;
    padding: 14px 14px 8px;
    width: 250px;
    margin-left: -123px;
    border: 1px solid #eee;
    border-radius: 4px;
    background-color: #fff;
}
.choose-year-outside-box:hover .choose-year{
    display: block;
}
.choose-year-outside-box .iconfont{
    transition: 0.5s;
    display: inline-block;
}
.choose-year-outside-box:hover .iconfont{
    transform: rotate(180deg);
    -ms-transform:rotate(180deg); 	/* IE 9 */
    -moz-transform:rotate(180deg); 	/* Firefox */
    -webkit-transform:rotate(180deg); /* Safari 和 Chrome */
    -o-transform:rotate(180deg); 	/* Opera */
}
.choose-place{
    display: none;
    position: absolute;
    padding: 14px 14px 8px;
    width: 346px;
    margin-left: -173px;
    border: 1px solid #eee;
    border-radius: 4px;
    background-color: #fff;
}
.choose-place-outside-box:hover .choose-place{
    display: block;
}
.choose-place-outside-box .iconfont{
    transition: 0.5s;
    display: inline-block;
}
.choose-place-outside-box:hover .iconfont{
    transform: rotate(180deg);
    -ms-transform:rotate(180deg); 	/* IE 9 */
    -moz-transform:rotate(180deg); 	/* Firefox */
    -webkit-transform:rotate(180deg); /* Safari 和 Chrome */
    -o-transform:rotate(180deg); 	/* Opera */
}
.place-item{
    width: 12.5%;
    padding-bottom: 6px;
    font-size: 12px;
    line-height: 18px;
    height: 24px;
    text-align: center;
}
.choose-edition{
    display: none;
    position: absolute;
    padding: 14px 14px 8px;
    width: 346px;
    margin-left: -173px;
    border: 1px solid #eee;
    border-radius: 4px;
    background-color: #fff;
}
.choose-edition-outside-box:hover .choose-edition{
    display: block;
}
.choose-edition-outside-box .iconfont{
    transition: 0.5s;
    display: inline-block;
}
.choose-edition-outside-box:hover .iconfont{
    transform: rotate(180deg);
    -ms-transform:rotate(180deg); 	/* IE 9 */
    -moz-transform:rotate(180deg); 	/* Firefox */
    -webkit-transform:rotate(180deg); /* Safari 和 Chrome */
    -o-transform:rotate(180deg); 	/* Opera */
}
.edition-item{
    float: left;
    width: auto;
    padding-bottom: 6px;
    font-size: 12px;
    line-height: 18px;
    height: 24px;
    text-align: center;
    margin-right: 12px;
}
.ppt-img{
    width: 20%;
    margin-right: 10px;
}
.tab-pane {
    background-color: #fff;
    padding: 0 1rem 0.5rem 1rem;
}
.nav-tabs .nav-item.show .nav-link, .nav-tabs .nav-link.active {
    
    border-bottom: 1px solid #2b99ff;
}
.nav-tabs .nav-link:focus {
    border-bottom: 1px solid #2b99ff;
}
.filters-list nav .active{
    border-bottom: 1px solid #2b99ff;
}
#choose-edition-text{
    
}
.all-choose-box>div:nth-child(n+3){
    width: 100px;
}


.bg-primary {
    background-color: #2b99ff!important;
}

/**/
.nav-item {
     margin-left: 0px;
}
.display-nav a{
    color: #333!important;
}
.display-nav a:hover{
    color:#2399ff!important ;
    background-color: #e9ecef;
}
footer .footer-nav a {
     color: #999; 
     padding:  0; 
     position: relative; 
}
.product-center{
    text-align: left;
}