.page-content .inner .tab{
    background-color: #F0F9FE;
    width: 283px;
    padding: 50px 55px 30px 30px;
    margin-right: 15px;
    position: sticky;
    top: 100px;
}
.page-content .inner .tab .title{
    color: #1497BC;
    font-size: 24px;
    margin-bottom: 30px;
    font-weight: 700;
    line-height: 1;
}
.page-content .inner .tab .list {
    display:flex;
    flex-direction: column;
}
.page-content .inner .tab .list .item .h{
    display:flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    height: 30px;
    padding:5px 0 ;
}
.page-content .inner .tab .list .item .b:after{
    content: '';
    width: 100%;
    height: 1px;
    display: block;
    background-color: #1497BC;
    position: absolute;
    top: 0;
    transform-origin: left;
    transform: scaleX(0);
    transition: all .5s;
}
.page-content .inner .tab .list .item .h.on~.b:after {
    transform: scaleX(1);
}

.page-content .inner .tab .list .item{
    padding-left:20px;
    position: relative;

}

.page-content .inner .tab .list .item.active .h:before,
.page-content .inner .tab .list .item:hover .h:before{
    background-color: #1497BC;
}
.page-content .inner .tab .list .item.active .h>a,
.page-content .inner .tab .list .item:hover .h>a{
    color: #1497BC;
}
.page-content .inner .tab .list .item .h a{
    font-size: 18px;
    transition: all 1s;
}
.page-content .inner .tab .list .item .h:before{
    width: 8px;
    height: 8px;
    transition: all 1s;
    border-radius: 50%;
    content: '';
    display:block;
    background-color: #1A1A1A;
    position: absolute;
    transform: translateY(-3px);
    left: 0;
}
.page-content .inner .tab .list .item .body{
    display: none;
}
.page-content .inner .tab .list .item .b{
    padding-top: 10px;
    padding-bottom: 10px;
    position: relative;
}
.page-content .inner .tab .list .item .b a{
    font-size: 15px;
    color: #1A1A1A;
    display: block;
    transition: all 1s;
}
.page-content .inner .tab .list .item .b a:hover{
    color: #1497BC;
}
.page-content .inner .tab .list .item .h.on .icon{
    transform: rotate(90deg);
}
.page-content .inner .tab .list .item .icon{
    transition: all .5s;
}
@media screen and (max-width: 1680px) {
    .page-content .inner .tab .list .item .b a,
    .page-content .inner .tab .list .item .h a {
        font-size: 16px;
    }
    .page-content .inner .tab .title {
        font-size: 20px;
        margin-bottom: 20px;
    }
    .page-content .inner .tab{
        width: 260px;
        padding: 30px;
    }
    .page-content .inner .tab .list .item .h:before {
        width: 6px;
        height: 6px;
        transform: translateY(-1px);
    }

    .page-content .inner .tab .list .item {
        padding-left: 15px;
    }

}
@media screen and (max-width: 1300px) {
    .page-content .inner .tab {
        width: 240px;
        padding: 30px 20px;
    }
}
@media screen and (max-width: 1024px) {
    .page-content .inner .tab{
        width: 100%;
        margin-right: 0;
        margin-bottom: 10px;
        padding: 20px;
    }
    .page-content .inner .tab .list .item .b a, .page-content .inner .tab .list .item .h a {
        font-size: 14px;
    }

}