#download.list .thr-nav {
    width: 100%;
    background: rgb(242, 242, 242);
    padding-bottom: 45px;
    padding-top: 100px;
    box-sizing: border-box;
}
#download .m-item {
    display: none;
}

.inside-title {
    padding-bottom: 0;
}

.inside-title::before {
    height: 0px;
}

@keyframes slideUp {
    from {
        transform: translateY(10%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.my-slideUp {
    animation: slideUp 1s forwards;
}

.download-nav {
    background-color: #ffffff;
    display: flex;
    flex-direction: row;
    align-items: center;
    border-radius: 25px;
    padding: 0 20px;
    box-sizing: border-box;
    height: 85px;
    line-height: 85px;
    margin-bottom: 0px!important;
    margin-top: 50px!important;
}

.download-nav .download-nav-image {
    width: 50px;
    cursor: pointer;
    height: 50px;
}

.download-nav .download-nav-image img {
    width: 100%;
    height: 100%;
}
.download-nav .download-nav-image img:active, .download-nav .download-nav-image img:hover  {

}

.download-nav .download-nav-body {
    flex: 1;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
}


.download-nav .download-nav-item {
    font-size: 20px;
    border-radius: 15px;
    width: 170px;
    height: 55px;
    line-height: 55px;
    margin-right: 15px;
    text-align: center;
    font-weight: 300;
    cursor: pointer;

}


#download.list .content {
    display: none;
    width: 100%;
}

#download.list .content.active {
    display: flex;
    flex-direction: column;
    animation-duration: .5s;
    box-sizing: border-box;
}
.download-nav .download-nav-item:hover, .download-nav .download-nav-item:active {
    background-color: rgb(232, 232, 232);
    color: #333!important;
    transition: background-color 1s ease;
}

.download-nav .download-nav-item.active {
    background-color: rgb(232, 232, 232);
}

#download.list .content {
    background: rgb(249, 249, 249) !important;
    padding-top: 80px;
    padding-bottom: 120px;
}

#download .thr .item tr {
    cursor: pointer;
}
#download .thr .item tr.slide:hover td {
    background:none;
}

#download table .slide:hover {
    background-color: rgb(249, 249, 249);
}

#download table .slide:hover
tr:hover {background-color:#f5f5f5;}
#download.list .two-fixed {
    width: 100%;
    background: #fff;
    border-top: 1px solid #eee;
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    height: 60px;
    z-index: 4;
    margin: auto;
}
#download .download-two-fixed {
    display: flex;
    flex-direction: row;
    height: 100%;
    align-items: center;
    justify-content: center;
    font-size: 15px;
}
#download .download-two-fixed a {
    font-size: 14px;
    border-radius: 10px;
    width: 92px;
    height: 31px;
    line-height: 31px;
    text-align: center;
    font-weight: 300;
    cursor: pointer;
}
#download .download-two-fixed a:hover, #download .download-two-fixed a:active{
    background-color: rgb(232, 232, 232);
    color: #333!important;
    transition: background-color 1s ease;
}
#download .download-two-fixed a.active {
    background-color: rgb(232, 232, 232);
    color: #333!important;
}

#study .study-item {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    flex-flow: row wrap;
    justify-content: flex-start;
}
#study .study-item .study-item-child{
    margin-bottom: 42px;
    width: calc((100% - 78px) / 4);
    margin-right: 26px;
}
#study .study-item .study-item-child:nth-child(4n) {
    margin-right: 0;
}

#study .study-item .study-item-child .play {
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    pointer-events: none;
}
#study .study-item .study-item-child .play  .play-image {
    width: 53px;
    height: 53px;
}
#study .study-item .study-item-child .video {
    width: 100%;
    height: auto;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease-in-out;
}
#study .study-item .study-item-child .video-img:hover {
    transform: scale(1.05);
}


#study .study-item .study-item-child .video .video-img {
    width: 100%;
    height: 100%;
    cursor: pointer;
    transition: transform 0.3s ease-in-out;
}
#study .study-item .study-item-child .video-title {
    padding: 15px 20px;
    font-size: 15px;
    background-color: #fff;
    display: flex;
    align-items: center;
}

.pagination-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 4%;
}
.q-fadeInUp {
    animation-name: fadeInUp;
    -webkit-animation: fadeInUp 1s ease both;
}

.q-fadeInDown {
    animation-name: fadeInDown;
    -webkit-animation: fadeInDown 1s ease both;
}


.pagination-container .paginationjs-prev:hover, .pagination-container .paginationjs-next:hover {
    background-color: rgb(232, 232, 232);
    color: black!important;
    font-weight: 500!important;
}
.paginationjs .paginationjs-pages li>a {
    background: unset;
}
.paginationjs .paginationjs-pages li>a:hover {
    background: unset;
}

.paginationjs .paginationjs-pages li {
    border: 1px solid #e8e8e8!important;
    border-radius: 50%;
    font-size: 15px;
    margin: 0 10px;
    padding: 4px;
    background-color: white;
}
.pagination-container .paginationjs-prev, .pagination-container .paginationjs-next {
    margin: 0 20px;
    padding: 2px 30px!important;
    font-size: 15px;
    border-radius: 15px!important;
    border-right: 1px solid #e8e8e8!important;
    border: 1px solid #e8e8e8!important;
}
.paginationjs .paginationjs-pages li.active {
    background-color: #ff240c;
}
.paginationjs .paginationjs-pages li:hover {
    background-color: #ff240c;
}
.paginationjs .paginationjs-prev:hover,  .paginationjs .paginationjs-next:hover{
    background-color: unset!important;
}
.paginationjs .paginationjs-prev  >a:hover ,  .paginationjs .paginationjs-next  >a:hover{
    color: unset!important;
}
.paginationjs .paginationjs-prev.disabled:hover, .paginationjs .paginationjs-next.disabled:hover {
    background-color: unset;
}
.paginationjs .paginationjs-prev.disabled >a:hover, .paginationjs .paginationjs-next.disabled >a:hover {
    color: unset;
}

.paginationjs .paginationjs-pages li>a:hover {
    background: unset;
    color: white;
}
.paginationjs .paginationjs-pages li.active>a {
    background-color: unset!important;
}
.paginationjs .paginationjs-pages li.hover>a {
    background-color: unset!important;
}
.paginationjs .paginationjs-pages ul {
    display: flex;
    flex-direction: row;
    align-items: center;
}

#question-query {
    display: flex;
    flex-direction: row;
    background-color: white;
    align-items: center;
    box-sizing: border-box;
    padding: 0 20px;
    border-radius: 10px;
}
#question-query .search-icon {
    width: 20px;
    height: 20px;
    margin-right: 10px;
}

.question-q {
    background-color: rgb(237, 237, 237);
    padding: 15px 0px;
    margin: 0 0px;
}
#question-query input {
    flex: 1;
    height: 40px;
    line-height: 40px;
    font-weight: 300;
}

#question-item {
    display: flex;
    flex-direction: column;
    width: 100%;
    margin-top: 30px;

}
#question-item .question-child {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-sizing: border-box;
    cursor: pointer;
    margin-bottom: 20px;
    position: relative;
}
#question-item .question-body {
    width: 100%;
    background-color:#fff;
    padding: 20px;
    padding-bottom: 30px;
    font-size: 18px;
    box-sizing: border-box;
    white-space: pre-line;
    line-height: 35px;
}
#question-item  .question-title.active {
    background-color: rgb(219, 219, 219);
}
#question-item .question-title:hover {
    background-color: rgb(219, 219, 219);
}
#question-item .question-title {
    display: flex;
    flex-direction: row;
    padding: 18px 20px;
    background-color: rgb(237, 237, 237);
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
    border-radius: 10px;
}
#question-item .question-title .title {
    display: flex;
    flex-direction: row;
    align-items: center;
    font-size: 18px;
}
#question-item .question-title .desc {
    margin-right: 70px;
}
#question-item .question-title .title div {
    font-size: 16px;
}
#question-item .question-title .title .line {
    width: 2px;
    height: 18px;
    background-color: #ff240c;
    margin-right: 10px;
}
#question-item .question-child .arrow {
    width: 70px;
    height: 100%;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    background-color: rgb(219, 219, 219);
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    border-bottom-right-radius : 10px;
    border-top-right-radius : 10px;
}
#question-item .question-child .arrow img {
    width: 30px;
    height: 30px;
}

#download .m-item-download {
    display: flex;
    flex-direction: column;
    margin-bottom: 18px;
    border-radius: 10px;
}

#download .m-item-download .m-item-title {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgb(230, 230, 230);
    font-size: 16px;
    font-weight: bold;
    padding: 11.3px 0;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
}
#download .m-item-desc {
    padding: 25px;
    background-color: #ffffff;
    display: flex;
    flex-direction: column;
    border-bottom-left-radius: 10px;
    border-bottom-right-radius: 10px;
}
#download .m-item-desc .desc {
    margin-bottom: 20px;
}
#download .m-item-desc .desc span {
    font-size: 13px;
    line-height: 13px;
}
#download .m-item-desc .desc .title {
    color: black;
    font-size: 13px;
    font-weight: bold;
    line-height: 13px;

}
#download .add-download {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    padding: 10px;
    padding-bottom: 5px;
}
#download .add-download a {
    background-color: rgb(242, 242, 242);
    font-size: 14px;
    padding:6px 16px;
    border-radius: 5px;
}
#download .add-download a img {
    width: 16px;
    height: 16px;
    margin-right: 10px;
}
#download .add-download a span {
    color:  #ff240c;;
    margin-right: 10px;
}
@media screen and (max-width:1200px){

    #study .study-item .study-item-child{
        width: calc((100% - 52px) / 3);
    }
    #study .study-item .study-item-child:nth-child(4n) {
        margin-right: 26px;
    }
    #study .study-item .study-item-child:nth-child(3n) {
        margin-right: 0;
    }

    .download-nav .download-nav-image {
        width: 40px;
        cursor: pointer;
        height: 40px;
    }
    .download-nav {
        height: 70px;
    }
    .download-nav .download-nav-item {
        width: 150px;
        height: 40px;
        line-height: 40px;
        margin-right: 20px;
        font-size: 18px;
        border-radius: 15px;
    }
}
@media screen and (max-width:900px){
    #study .study-item .study-item-child{
        width: calc((100% - 26px) / 2);
    }

    #study .study-item .study-item-child:nth-child(4n) {
        margin-right: 26px;
    }
    #study .study-item .study-item-child:nth-child(3n) {
        margin-right: 26px;
    }
    #study .study-item .study-item-child:nth-child(2n) {
        margin-right: 0px;
    }
    #download.list .thr .item {
        margin-top: 0;
    }
}

@media screen and (max-width:650px){

     #download.list .thr-nav {
         padding: 40px 15px 25px;
     }
    .inside-title .text-one {
        font-size: 20px;
    }
    #download.list .content.active {
        padding: 0px 0px 30px;
        background: rgb(242, 242, 242)!important;
    }
    #study .study-item .study-item-child .video-title {
        border-bottom-left-radius: 0px;
        border-bottom-right-radius: 0px;
        font-size: 12px;
        padding: 10px;
    }

    #study .study-item .study-item-child .play .play-image {
        width: 33px;
        height: 33px;
    }

    #study .study-item .study-item-child .video {
        height: 98px;
    }
    #download .m-item {
        display: unset;
        width: 100%;
        padding: 0 15px;
        box-sizing: border-box;
    }
    #download .pc-item {
        display: none;
    }
    .download-nav .download-nav-image {
        width: 20px;
        cursor: pointer;
        height: 20px;
    }
    .download-nav {
        height: 40px;
        padding: 0 10px;
        border-radius: 10px;
        margin-top: 25px!important;
    }
    .download-nav .download-nav-item {
        height: 26px;
        line-height: 26px;
        font-size: 12px;
        margin-right: 0px;
        width: unset;
        padding: 0px 15px;
        border-radius: 8px;
    }
    #download .content-line {
        display: none;
    }
    #download.list .two-fixed {
        height: 50px;
    }
    .support-page {
        margin-top: 20px;
        margin-bottom: 10px;
    }
    .paginationjs .paginationjs-pages li >a, .paginationjs .paginationjs-pages li.active >a {
        width: 22px;
        line-height: 22px;
        min-width: 22px;
        font-size: 14px;
        height: 22px;
    }

    #study .study-item .study-item-child{
        width: calc((100% - 10px) / 2);
        border-radius: 0px;
        margin-bottom: 18px;
    }
    #study .study-item .study-item-child {
        margin-right: 10px;
    }
    #study .study-item .study-item-child:nth-child(4n) {
        margin-right: 10px;
    }
    #study .study-item .study-item-child:nth-child(3n) {
        margin-right: 10px;
    }

    #study .study-item .study-item-child:nth-child(2n) {
        margin-right: 0px;
    }
    .pagination-container .paginationjs-prev, .pagination-container .paginationjs-next {
        padding: 4px 6px!important;
    }
    .paginationjs .paginationjs-pages li {
        margin: 0 5px;
    }
    .paginationjs .paginationjs-prev a , .paginationjs  .paginationjs-next a{
       min-width: 64px!important;
        font-size: 12px!important;
    }
    .question-q {
        padding: 10px 16px;
    }
    #question-query input {
        height: 35px;
    }
    #question-item .question-title {
        padding: 14px 16px;
    }
    #question-item .question-title .title div {
        font-size: 14px;
    }
    #question-item .question-title .desc {
        margin-right: 60px;
    }
    #question-item .question-child .arrow {
        width: 50px;
    }
    #question-item .question-child .arrow img {
        width: 20px;
        height: 20px;
    }
    #question-item .question-body {
        padding: 15px;
        font-size: 14px;
    }
    .download-nav {
        width: 100%;
    }
    #question-query {
        width: 100%;
    }
    #question-item .question-title {
        background-color: white;
    }
    .download-two-fixed  {
        font-size: 13px!important;
    }
}

@keyframes slideDown {
    from {
        max-height: 0;
        overflow: hidden;
    }
    to {
        max-height: 200px;
        overflow: hidden;
    }
}

.myElement {
    animation: slideDown 1s forwards;
}