/* 下载专区容器 */
.download-center {
    max-width: 1600px;
    margin: 0 auto;
    padding: 20px;
}
.dowloadwrap{
    background: #000;
}
#wrap{
    background: #000;
}
/* 筛选区域 */
.filter-section {
    margin-bottom: 30px;
}

.filter-group {
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #1a1a1a;
}

.filter-group:last-child {
    border-bottom: none;
}

.filter-title {
    float: left;
    width: 100px;
    color: #4d4d4d;
    line-height: 32px;
}

.filter-options {
    margin-left: 100px;
}

.filter-item {
    display: inline-block;
    padding: 6px 12px;
    margin: 0 10px 10px 0;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.filter-item:hover {
    background-color: #331c00;
     border-radius: 15px;
      border: 1px solid #FE8B00;
}

.filter-item.active {
    color: #fff;
    background-color: #331c00;
    border: 1px solid #FE8B00;
    border-radius: 15px;
}

/* 已选条件 */
.selected-filters {
    margin-top: 20px;
    padding-top: 20px;
    /* border-top: 1px solid #1a1a1a; */
}

.selected-items {
    display: inline-block;
    /* margin-left: 100px; */
}

.selected-item {
    display: inline-block;
    padding: 4px 12px;
    margin-right: 10px;
    background-color: #331c00;
    border-radius: 15px;
    font-size: 14px;
    box-sizing: border-box;
    border: 1px solid #FE8B00;
    color: #fff;
}

.remove-icon {
    margin-left: 6px;
    color: #FE8B00;
    cursor: pointer;
    font-style: normal;
}

.remove-icon:hover {
    color: #FE8B00;
}

.clear-all {
    color: #fff;
    text-decoration: none;
    margin-left: 20px;
}

.clear-all:hover {
    color: #FE8B00;
}

/* 搜索和操作区域 */
.search-section {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    padding: 20px;
    /* background-color: #F9F9F9; */
    border-radius: 4px;
    justify-content: center;
}

.search-box {
    position: relative;
    margin-right: 20px;
}

.search-box input {
    width: 700px;
    padding: 8px 40px 8px 12px;
    box-sizing: border-box;
    border: 1px solid #1a1a1a;
    border-radius: 4px;
    font-size: 14px;
    background: #1a1a1a;
    color: #fff;
}

.search-btn {
    position: absolute;
    right: 0;
    top: 0;
    width: 40px;
    height: 100%;
    border: none;
    background: transparent;
    cursor: pointer;
}

.search-icon {
    display: inline-block;
    width: 38px;
    height: 100%;
    /* border: 2px solid #666; */
    border-radius: 0 4px 4px 0;
    position: relative;
    background-color: #FE8B00;
}

.search-icon img {
    width: 60%;
    display: block;
    margin: 15% auto;
}

/* .search-icon::after {
    content: '';
    position: absolute;
    width: 2px;
    height: 8px;
    background: #666;
    bottom: -6px;
    right: -6px;
    transform: rotate(-45deg);
} */

.reset-btn,
.batch-download-btn {
    padding: 8px 16px;
    margin-right: 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
}

.reset-btn {
    background-color: #1a1a1a;
    color: #fff;
}

.batch-download-btn {
    background-color: #FE8B00;
    color: #fff;
}

.selected-count,
.result-count {
    font-size: 14px;
    color: #666;
    margin-right: 20px;
}

.selected-count-wrapper {
    display: inline-flex;
    align-items: center;
    margin-right: 20px;
}

.selected-count-close {
    margin-left: 8px;
    cursor: pointer;
    font-style: normal;
    color: #999;
    transition: color 0.3s ease;
}

.selected-count-close:hover {
    color: #FE8B00;
}

/* 文件列表 */
.file-list {
    margin-bottom: 30px;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #1a1a1a;
    color: #fff;
}

th {
    background-color: #1a1a1a;
    font-weight: normal;
    color: #fff;
}

/* 表格行悬停效果 */
.file-list tbody tr {
    transition: all 0.3s ease;
}

.file-list tbody tr:hover {
    background-color: #262626;
    cursor: pointer;

}

.file-list tbody tr:hover td {
    border-bottom-color: #1a1a1a;
}

/* 弹窗表格行悬停效果 */
#selectedFilesList tr {
    transition: all 0.3s ease;
}

#selectedFilesList tr:hover {
    background-color: #F5F5F5;
    cursor: pointer;
}

#selectedFilesList tr:hover td {
    border-bottom-color: #1a1a1a;
}

.checkbox-col {
    width: 50px;
}

.type-col {
    width: 150px;
}

.size-col {
    width: 100px;
}

.action-col {
    width: 100px;
}

.download-btn {
    display: inline-block;
    padding: 6px 12px;
    /* color: #FE8B00; */
    text-decoration: none;
    /* border: 1px solid #FE8B00; */
    border-radius: 4px;
    transition: all 0.3s ease;
    box-sizing: border-box;
}
.download-btn img{
    width: 17px;
}

.download-btn:hover {
    color: #fff;
    background-color: #FE8B00;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 30px;
    gap: 8px;
}

.page-item {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 22px;
    height: 32px;
    padding: 0 6px;
    color: #fff;
    text-decoration: none;
    border: 1px solid #1a1a1a;
    /* border-radius: 4px; */
    font-size: 14px;
    transition: all 0.3s ease;
    background-color: #1a1a1a;
}

.page-item:hover {
    color: #FE8B00;
    border-color: #1a1a1a;
    background-color: #1a1a1a;
}

.page-item.current {
    background-color: #FE8B00;
    border-color: #FE8B00;
    color: #fff;
}

/* 上一页和下一页按钮样式 */
.page-item:first-child,
.page-item:last-child {
    background-color: #1a1a1a;
    color: #b0b0b0;
}

.page-item:first-child:hover,
.page-item:last-child:hover {
    color: #FE8B00 !important;
}

/* 响应式设计 */
@media screen and (max-width: 1200px) {
    .download-center {
        padding: 15px;
        margin: 0 10px;
    }
}

@media screen and (max-width: 992px) {
    .filter-title {
        float: none;
        width: auto;
        margin-bottom: 12px;
        font-size: 15px;
    }

    .filter-options,
    .selected-items {
        margin-left: 0;
    }

    .search-section {
        padding: 15px;
    }

    .search-box {
        width: 100%;
        max-width: 400px;
    }

    .search-box input {
        width: 100%;
    }

    table {
        font-size: 14px;
    }

    th, td {
        padding: 12px 8px;
    }
}

@media screen and (max-width: 768px) {
    .download-center {
        padding: 12px;
    }

    .filter-group {
        margin-bottom: 15px;
        padding-bottom: 15px;
    }

    .filter-item {
        padding: 4px 10px;
        margin: 0 6px 6px 0;
        font-size: 13px;
    }

    .search-section {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
        padding: 15px;
    }

    .search-box {
        margin-right: 0;
        margin-bottom: 0;
    }

    .button-group {
        display: flex;
        gap: 10px;
    }

    .reset-btn,
    .batch-download-btn {
        flex: 1;
        margin-right: 0;
        white-space: nowrap;
    }

    .selected-count-wrapper {
        margin: 10px 0;
    }

    /* 移动端表格优化 */
    .file-list {
        margin-bottom: 20px;
        overflow-x: visible;
    }

    .file-list table,
    .file-list tbody,
    .file-list tr,
    .file-list td {
        display: block;
    }

    .file-list thead {
        display: none;
    }

    .file-list table {
        min-width: auto;
        border: none;
    }

    .file-list tr {
        position: relative;
        padding: 15px;
        margin-bottom: 15px;
        background: #fff;
        border: 1px solid #1a1a1a;
        border-radius: 8px;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    }

    .file-list td {
        padding: 5px 0;
        border: none;
        text-align: left;
    }

    .file-list td:not(:first-child) {
        padding-left: 25px;
    }

    /* 复选框列样式 */
    .file-list td:first-child {
        position: absolute;
        top: 15px;
        right: 15px;
        width: auto;
        padding: 0;
    }

    /* 文件名样式 */
    .file-list td:nth-child(2) {
        font-size: 15px;
        font-weight: 500;
        padding-right: 40px;
        margin-bottom: 8px;
    }

    /* 文件类型样式 */
    .file-list td:nth-child(3) {
        font-size: 13px;
        color: #666;
    }

    /* 文件大小样式 */
    .file-list td:nth-child(4) {
        font-size: 13px;
        color: #666;
    }

    /* 下载按钮样式 */
    .file-list td:last-child {
        margin-top: 10px;
        padding-left: 25px;
    }

    .file-list .download-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 100%;
        margin-top: 5px;
    }

    /* 添加移动端的数据标签 */
    .file-list td:nth-child(3)::before {
        content: "类型：";
        color: #999;
    }

    .file-list td:nth-child(4)::before {
        content: "大小：";
        color: #999;
    }

    /* 优化表格行悬停效果 */
    .file-list tr:hover {
        background-color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        transition: all 0.3s ease;
    }

    /* 弹窗优化 */
    .modal-content {
        margin: 10px;
        width: calc(100% - 20px);
        max-height: calc(100vh - 20px);
        display: flex;
        flex-direction: column;
    }

    .modal-body {
        flex: 1;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .modal-header {
        padding: 12px 15px;
    }

    .modal-header h3 {
        font-size: 16px;
    }

    .modal-body {
        padding: 12px 15px;
    }

    .modal-footer {
        padding: 12px 15px;
    }

    #selectedFilesList {
        font-size: 13px;
    }

    #selectedFilesList th,
    #selectedFilesList td {
        padding: 10px 8px;
    }
}

@media screen and (max-width: 480px) {
    .download-center {
        padding: 10px;
    }

    .filter-section {
        margin-bottom: 20px;
    }

    .filter-title {
        font-size: 14px;
        margin-bottom: 10px;
    }

    .filter-item {
        padding: 3px 8px;
        margin: 0 5px 5px 0;
        font-size: 12px;
    }

    .selected-item {
        font-size: 12px;
        padding: 3px 6px;
        margin-right: 6px;
    }

    .search-section {
        padding: 12px;
        gap: 10px;
    }

    .search-box input {
        padding: 6px 32px 6px 10px;
        font-size: 13px;
        box-sizing: border-box;
    }

    .reset-btn,
    .batch-download-btn {
        padding: 6px 12px;
        font-size: 13px;
        box-sizing: border-box;
    }

    .selected-count,
    .result-count {
        font-size: 12px;
        margin-bottom: 0;
    }

    .file-list tr {
        padding: 12px;
        margin-bottom: 12px;
    }

    .file-list td:first-child {
        top: 12px;
        right: 12px;
    }

    .file-list td:nth-child(2) {
        font-size: 14px;
        padding-right: 35px;
        margin-bottom: 6px;
    }

    .file-list td:nth-child(3),
    .file-list td:nth-child(4) {
        font-size: 12px;
    }

    .file-list td:not(:first-child) {
        padding-left: 20px;
    }

    .file-list .download-btn {
        padding: 5px 10px;
        font-size: 12px;
        box-sizing: border-box;
    }

    .checkbox-col {
        width: 40px;
    }

    .action-col {
        width: 80px;
    }

    .pagination {
        gap: 3px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .page-item {
        min-width: 26px;
        height: 26px;
        padding: 0 6px;
        font-size: 12px;
    }

    /* 弹窗进一步优化 */
    .modal-content {
        margin: 5px;
        width: calc(100% - 10px);
        border-radius: 6px;
    }

    .modal-header {
        padding: 10px 12px;
    }

    .modal-header h3 {
        font-size: 15px;
    }

    .modal-close {
        font-size: 20px;
    }

    .modal-body {
        padding: 10px 12px;
    }

    .modal-footer {
        padding: 10px 12px;
    }

    .modal-close-btn {
        font-size: 13px;
        padding: 6px 12px;
    }

    #selectedFilesList th,
    #selectedFilesList td {
        padding: 8px 6px;
        font-size: 12px;
    }
}

/* 增加横向滚动条样式 */
.file-list::-webkit-scrollbar {
    height: 6px;
}

.file-list::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

.file-list::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 3px;
}

.file-list::-webkit-scrollbar-thumb:hover {
    background: #999;
}

/* 增加弹窗滚动条样式 */
.modal-body::-webkit-scrollbar {
    width: 6px;
}

.modal-body::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

.modal-body::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 3px;
}

.modal-body::-webkit-scrollbar-thumb:hover {
    background: #999;
}

/* 删除图标 */
.delete-col {
    width: 50px;
}

.delete-icon {
    cursor: pointer;
    color: #999;
    font-style: normal;
    transition: color 0.3s ease;
}

.delete-icon:hover {
    color: #FE8B00;
}

/* 弹窗样式 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
}

.modal-content {
    position: relative;
    background-color: #fff;
    margin: 50px auto;
    padding: 0;
    width: 90%;
    max-width: 800px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.modal-header {
    padding: 20px;
    border-bottom: 1px solid #1a1a1a;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    margin: 0;
    font-size: 18px;
    color: #333;
}

.modal-close {
    font-size: 24px;
    color: #999;
    cursor: pointer;
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: #FE8B00;
}

.modal-body {
    padding: 20px;
    max-height: calc(100vh - 250px);
    overflow-y: auto;
}

.modal-footer {
    padding: 20px;
    border-top: 1px solid #1a1a1a;
    text-align: right;
}

.modal-close-btn,
.modal-download-btn {
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    margin-left: 10px;
    border: none;
}

.modal-close-btn {
    background-color: #fff;
    border: 1px solid #1a1a1a;
}

.modal-xiazai-btn {
    background-color: #fff;
    border: 1px solid #1a1a1a;
}

.modal-download-btn {
    background-color: #FE8B00;
    color: #fff;
}

.selected-count-wrapper {
    cursor: pointer;
}

/* 响应式弹窗 */
@media screen and (max-width: 768px) {
    .modal-content {
        width: 95%;
        margin: 20px auto;
    }

    .modal-body {
        max-height: calc(100vh - 200px);
    }
}

@media screen and (max-width: 480px) {
    .modal-header {
        padding: 15px;
    }

    .modal-body {
        padding: 15px;
    }

    .modal-footer {
        padding: 15px;
    }

    .modal-close-btn,
    .modal-download-btn {
        width: calc(50% - 5px);
        margin: 0;
    }

    .modal-download-btn {
        margin-left: 10px;
    }
}

/* 添加过渡动画 */
.file-list tr {
    transition: all 0.3s ease;
} 


.isShowTr{
    display: none; 
}

.nocont{
    width: 100px;
    display: block;
    margin: 200px auto;
}

/* 技术课堂容器 */
.technical-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 20px;
}

/* 标题样式 */
.section-title {
    text-align: center;
    margin-bottom: 40px;
}

.section-title h2 {
    font-size: 32px;
    color: #333;
    margin-bottom: 10px;
}

.section-title p {
    font-size: 16px;
    color: #666;
}

/* 视频网格布局 */
.video-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 50px;
}

/* 视频项样式 */
.video-item {
    background: #1a1a1a;
    border-radius: 0;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: transform 0.3s ease;
}

.video-item:hover {
    transform: translateY(-5px);
}

/* 视频封面样式 */
.video-cover {
    position: relative;
    padding-top: 75.25%; /* 16:9 比例 */
    background: #f5f5f5;
    overflow: hidden;
}

.video-thumbnail {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.video-item:hover .video-thumbnail img {
    transform: scale(1.05);
}

/* 播放图标 */
.play-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    /* background: rgba(244, 164, 96, 0.9); */
    border-radius: 50%;
    z-index: 1;
}

.play-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 55%;
    transform: translate(-50%, -50%);
    border-style: solid;
    border-width: 12px 0 12px 20px;
    border-color: transparent transparent transparent #fff;
}

/* 悬停效果 */
.video-hover {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2;
}

.hover-content {
    text-align: center;
    color: #fff;
    padding: 20px;
}

.hover-title {
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 10px;
}

.hover-desc {
    font-size: 14px;
    opacity: 0.8;
}

/* 视频信息 */
.video-info {
    padding: 15px;
}

.video-info h3 {
    font-size: 16px;
    color: #fff;
    margin-bottom: 8px;
    font-weight: 500;
    text-align: center;
}

.video-info p {
    font-size: 14px;
    color: #666;
}

/* 视频弹窗 */
.video-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 1000;
}

.modal-content {
    position: relative;
    max-width: 1000px;
    width: 90%;
    margin: 100px auto;
    
}
.modal-content-video{
    background: #000;
}
.modal-close {
    position: absolute;
    top: -40px;
    right: 0;
    color: #000;
    font-size: 32px;
    cursor: pointer;
    width: 40px;
    height: 40px;
    line-height: 36px;
    text-align: center;
    z-index: 1001;
    border-radius: 50%;
    background: #fff;
}

.video-container {
    position: relative;
    padding-top: 56.25%;
    width: 100%;
}

.video-container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* 响应式布局 */
@media screen and (max-width: 1024px) {
    .video-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media screen and (max-width: 768px) {
    .section-title h2 {
        font-size: 28px;
    }

    .section-title p {
        font-size: 14px;
    }

    .hover-title {
        font-size: 16px;
    }

    .hover-desc {
        font-size: 12px;
    }
    .tab-item {
        padding: 10px 15px;
        font-size: 14px;
    }
    .nav-item {
        padding: 12px 20px;
        font-size: 15px;
    }
}

@media screen and (max-width: 480px) {
    .video-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .section-title h2 {
        font-size: 24px;
    }

    .video-info h3 {
        font-size: 14px;
    }

    .video-info p {
        font-size: 12px;
    }

    .modal-content {
        margin: 60px auto;
    }

    .modal-close {
        top: -30px;
        font-size: 24px;
        width: 30px;
        height: 30px;
        line-height: 30px;
    }
    .tab-item {
        flex: 1;
        text-align: center;
    }
   
    .nav-item {
        padding: 10px 15px;
        font-size: 14px;
    }
     .customer-service2-title, .customer-service2-cont{
        font-size: 14px !important;
    }
} 
.customer-service2{
    position: relative;
}
.customer-service2-title{
    font-size: 30px;
    font-weight: bold;
    color: #fff;
    text-align: center;
    display: block;
    width: 100%;
    position: absolute;
    left: 0;
    bottom: 100px;
    z-index: 99;
}
.customer-service2-cont{
    font-size: 18px;
    font-weight: bold;
    text-align: center;
    display: block;
    color: #949a98;
    width: 100%;
    position: absolute;
    left: 0;
    bottom: 50px;
    z-index: 99;
}

.tab-item {
    padding: 12px 24px;
    font-size: 16px;
    color: #666;
    cursor: pointer;
    position: relative;
    transition: all 0.3s ease;
}

.tab-item.active {
    color: #FE8B00;
}

.tab-item.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #FE8B00;
}



/* 导航样式 */
.nav-tabs {
    display: flex;
    border-bottom: 1px solid #1a1a1a;
    /* margin-bottom: 30px; */
    background-color: #000;
    max-width: 1600px;
    margin: 0 auto;
}

.nav-item {
    position: relative;
    padding: 15px 30px;
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    transition: all 0.3s ease;
}

.nav-item:hover {
    color: #FE8B00;
}

.nav-item.active {
    /* color: #FE8B00; */
}

.nav-item.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #FE8B00;
}









.faq-container {
    max-width: 1200px;
    margin: 20px auto;
    padding: 0 20px;
}

/* 搜索区域样式 */
.fasearch-section {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    align-items: center;
}

.fasearch-box {
    flex: 1;
    max-width: 600px;
}

.fasearch-box input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.fasearch-box input:focus {
    outline: none;
    border-color: #FE8B00;
}

.fasearch-btn {
    padding: 12px 24px;
    background-color: #FE8B00;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
    white-space: nowrap;
}

.fasearch-btn:hover {
    background-color: #d89562;
}

.fareset-btn {
    padding: 12px 24px;
    background-color: #FE8B00;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
}

.fareset-btn:hover {
    background-color: #d89562;
}

/* FAQ内容区域 */
.faq-content {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 30px;
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* 分类区域样式 */
.category-section {
    background: #f9f9f9;
    border-radius: 4px;
    padding: 20px;
}

/* 分类样式 */
.faq-category {
    margin-bottom: 30px;
}

.faq-category:last-child {
    margin-bottom: 0;
}

.faq-category h2 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #333;
    padding-bottom: 10px;
    border-bottom: 2px solid #FE8B00;
}

.category-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.category-item {
    display: block;
    padding: 10px 15px;
    color: #666;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s;
    background-color: #fff;
}

.category-item:hover {
    background-color: #f5f5f5;
    color: #FE8B00;
}

.category-item.active {
    background-color: #FE8B00;
    color: white;
}

/* FAQ列表样式 */
.faq-list {
    grid-column: 2;
}

.faq-item {
    margin-bottom: 15px;
    border: 1px solid #eee;
    border-radius: 4px;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    cursor: pointer;
    background-color: #f9f9f9;
    transition: background-color 0.3s;
}

.faq-question:hover {
    background-color: #f5f5f5;
}

.question-text {
    flex: 1;
    font-size: 16px;
    font-weight: 500;
}

.toggle-icon {
    font-size: 20px;
    color: #FE8B00;
    margin-left: 15px;
    transition: transform 0.3s;
}

.faq-answer {
    display: none;
    padding: 20px;
    background-color: #fff;
    border-top: 1px solid #eee;
    color: #666;
    line-height: 1.8;
}

/* 响应式设计 */
@media screen and (max-width: 992px) {
    .faq-content {
        grid-template-columns: 250px 1fr;
        gap: 20px;
    }
}

@media screen and (max-width: 768px) {
    .faq-container {
        padding: 0 15px;
        margin: 15px auto;
    }

    .fasearch-section {
        display: grid;
        grid-template-columns: 1fr auto;
        grid-template-rows: auto auto;
        gap: 10px;
    }

    .fasearch-box {
        grid-column: 1 / -1;
        max-width: 100%;
    }

    .fasearch-btn {
        min-width: 120px;
    }

    .faq-content {
        grid-template-columns: 1fr;
        padding: 15px;
    }

    .category-section {
        margin-bottom: 20px;
        padding: 15px;
    }

    .category-list {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 8px;
    }

    .category-item {
        padding: 10px;
        font-size: 14px;
        text-align: center;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .faq-category h2 {
        font-size: 16px;
        margin-bottom: 12px;
    }

    .faq-question {
        padding: 12px 15px;
    }

    .question-text {
        font-size: 14px;
        line-height: 1.4;
    }

    .toggle-icon {
        font-size: 18px;
        min-width: 20px;
        text-align: center;
    }

    .faq-answer {
        padding: 15px;
        font-size: 14px;
        line-height: 1.6;
    }
}

@media screen and (max-width: 480px) {
    .faq-container {
        padding: 0 10px;
        margin: 10px auto;
    }

    .fasearch-section {
        grid-template-columns: 1fr;
    }

    .fasearch-btn,
    .fareset-btn {
        width: 100%;
        padding: 10px;
    }

    .category-list {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }

    .category-item {
        padding: 8px 10px;
        font-size: 13px;
    }

    .faq-content {
        padding: 12px;
    }

    .category-section {
        padding: 12px;
    }

    .faq-category h2 {
        font-size: 15px;
        margin-bottom: 10px;
    }

    .faq-question {
        padding: 10px 12px;
    }

    .question-text {
        font-size: 13px;
    }

    .faq-answer {
        padding: 12px;
        font-size: 13px;
    }
} 



@media screen and (max-width: 768px) {
  .isShowTr {
    display: none; 
    background: #222 !important; 
    border-radius: 10px !important; 
    margin: 10px 0 10px 0 !important; 
    box-shadow: 0 2px 8px rgba(0,0,0,0.10) !important; 
    position: relative !important; 
    z-index: 2 !important; 
    min-height: 150px;
    /* 让其在表格流内，不会浮在其他div上 */
  }
  .isShowTr.show {
    display: block  ;
    animation: fadeInShowTr 0.3s !important;
  }
  .isShowTr td {
    display: block !important;
    padding: 16px 18px !important;
    background: transparent !important;
    color: #fff !important;
    border: none !important;
    border-radius: 10px !important;
    font-size: 15px !important;
    box-shadow: none !important;
    margin: 0 !important;
    word-break: break-all !important;
    line-height: 1.7 !important;
  }
  .isShowTr td div {
    word-break: break-all !important;
    line-height: 1.7 !important;
  }
  @keyframes fadeInShowTr {
    from { opacity: 0; transform: translateY(10px) !important; }
    to   { opacity: 1; transform: translateY(0) !important; }
  }
}
@media screen and (max-width: 480px) {
  .isShowTr td {
    padding: 10px 8px !important; 
    font-size: 13px !important; 
    border-radius: 6px !important; 
  }
}