/*文本框tutorial-customer-sort-button控件样式*/
.tutorial-customer-sort-button {
    background-color: transparent;
    position: absolute;
    width: 12px;
    height: 12px;
    border: 0px;
    padding: 0px;
    margin: 0px;
    font-size: 12px;
}

/*文本框tutorial-customer-play-button控件样式*/
.tutorial-customer-play-button {
    background-color: transparent;
    width: 50px;
    height: 50px;
    border: 0px;
    padding: 0px;
    margin: 0px;
    font-size: 12px;
}

/* 移动端菜单切换按钮 */
.tutorial-mobile-menu-toggle {
    display: none;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-left: 10px;
}

.tutorial-mobile-menu-text {
    color: #181818;
    font-size: 10px;
    line-height: 12px;
}

.tutorial-mobile-menu-icon {
    width: 12px;
    height: 12px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.tutorial-hamburger-line {
    width: 12px;
    height: 1px;
    background-color: #181818;
    border-radius: 1px;
    transition: all 0.3s ease;
    transform-origin: center;
}

.tutorial-mobile-menu-toggle:hover .tutorial-hamburger-line {
    background-color: #126495;
}

/* 点击激活状态的动画效果 */
.tutorial-mobile-menu-toggle.active .tutorial-hamburger-line:nth-child(1) {
    transform: translateY(6.5px) rotate(45deg);
}

.tutorial-mobile-menu-toggle.active .tutorial-hamburger-line:nth-child(2) {
    opacity: 0;
    transform: scale(0);
}

.tutorial-mobile-menu-toggle.active .tutorial-hamburger-line:nth-child(3) {
    transform: translateY(-4.5px) rotate(-45deg);
}

.tutorial-mobile-menu-toggle:hover .tutorial-mobile-menu-text {
    color: #126495;
}

/* 移动端遮罩层 */
.tutorial-mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 998;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.tutorial-mobile-overlay.active {
    opacity: 1;
}

/* 页面容器 */
.tutorial-customer-page-container {
    width: 100%;
    max-width: 1920px;
    min-height: 100vh;
    padding: 0px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    border-top: 1px solid #126495;
    box-sizing: border-box;
}

.tutorial-customer-content-wrapper {
    width: 100%;
    max-width: 1200px;
    min-height: 100vh;
    padding: 0px 20px;
    display: flex;
    box-sizing: border-box;
}

/* 左侧边栏 */
.tutorial-customer-sidebar {
    width: 226px;
    min-width: 200px;
    flex-shrink: 0;
    padding: 0px;
    background-color: white;
    transition: transform 0.3s ease;
}

.tutorial-customer-sidebar-header {
    width: 100%;
    height: 39px;
    padding: 0px;
    line-height: 39px;
    border-bottom: 1px solid #126495;
}

.tutorial-customer-sidebar-section {
    width: 100%;
}

.tutorial-customer-sidebar-category {
    width: 100%;
    height: 58px;
    display: flex;
    align-items: center;
    line-height: 47px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.tutorial-customer-sidebar-category:hover {
    background-color: #f8f9fa;
}

.tutorial-customer-sidebar-category-header {
    flex: 1;
    height: 58px;
    display: flex;
    align-items: center;
    line-height: 58px;
    border-top: 1px solid #126495;
}

.tutorial-customer-sidebar-section:nth-child(2) .tutorial-customer-sidebar-category-header {
    border-top: 0px;
}

.tutorial-customer-sidebar-category-title {
    flex: 1;
    padding: 12px 0;
    margin-left: 57px;
    color: #126495;
    font-size: 18px;
    line-height: 29px;
    user-select: none;
    text-align: left;
}

.tutorial-customer-sidebar-category-icon {
    width: 37px;
    height: 58px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.tutorial-customer-sidebar-arrow {
    width: 9px;
    height: 9px;
    font-size: 1px;
    transition: transform 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 箭头旋转动画 */
.tutorial-customer-sidebar-category.expanded .tutorial-customer-sidebar-arrow {
    transform: rotate(90deg);
}

.tutorial-customer-sidebar-items {
    width: 100%;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease, opacity 0.3s ease;
    opacity: 0;
    padding: 0;
}

/* 展开状态 */
.tutorial-customer-sidebar-category.expanded + .tutorial-customer-sidebar-items {
    max-height: 200px; /* 足够容纳所有子项目的高度 */
    opacity: 1;
    padding: 10px 0;
    padding-top: 0;
}

.tutorial-customer-sidebar-item {
    width: 100%;
    height: 22px;
    display: flex;
    align-items: center;
    line-height: 22px;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.2s ease;
    border-radius: 4px;
    margin: 2px 0;
}

.tutorial-customer-sidebar-item:hover {
    background-color: #f0f8ff;
    transform: translateX(5px);
}

.tutorial-customer-sidebar-item.selected {
    background-color: #e3f2fd;
}

.tutorial-customer-sidebar-item.selected .tutorial-customer-sidebar-item-text {
    color: #126495;
    font-weight: 500;
}

.tutorial-customer-sidebar-item-text {
    flex: 1;
    margin-left: 57px;
    color: #5F5F5F;
    font-size: 14px;
    line-height: 22px;
    user-select: none;
    text-align: left;
}

/* 右侧主内容区 */
.tutorial-customer-main-content {
    flex: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.tutorial-customer-header {
    width: 100%;
    height: 39px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    line-height: 39px;
    border-bottom: 1px solid #126495;
    flex-shrink: 0;
}

.tutorial-customer-title {
    flex: 1;
    text-align: center;
    color: #126495;
    font-size: 18px;
    line-height: 23px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tutorial-customer-toolbar {
    width: 256px;
    min-width: 200px;
    height: 39px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-left: 1px solid #126495;
    flex-shrink: 0;
    gap: 20px;
}

.tutorial-customer-sort-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.tutorial-customer-sort-label {
    color: #181818;
    font-size: 10px;
    line-height: 12px;
}

.tutorial-customer-sort-dropdown {
    position: relative;
    display: inline-block;
    display: flex;
    align-items: center;
}

.tutorial-customer-sort-select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-color: white;
    border: 1px solid #126495;
    border-radius: 4px;
    color: #181818;
    font-size: 10px;
    line-height: 12px;
    padding: 4px 20px 4px 8px;
    min-width: 80px;
    cursor: pointer;
    transition: all 0.2s ease;
    outline: none;
}

.tutorial-customer-sort-select:hover {
    border-color: #0d4f7a;
    box-shadow: 0 1px 3px rgba(18, 100, 149, 0.2);
}

.tutorial-customer-sort-select:focus {
    border-color: #126495;
    box-shadow: 0 0 0 2px rgba(18, 100, 149, 0.1);
}

.tutorial-customer-sort-arrow {
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: #126495;
    font-size: 8px;
    transition: transform 0.2s ease;
}

.tutorial-customer-sort-dropdown:hover .tutorial-customer-sort-arrow {
    transform: translateY(-50%) scale(1.1);
}

/* 搜索容器样式 */
.tutorial-search-container {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
}

.tutorial-search-input {
    flex: 1;
    min-width: 120px;
    height: 28px;
    padding: 4px 8px;
    border: 1px solid #126495;
    border-radius: 4px;
    font-size: 12px;
    line-height: 1.2;
    color: #181818;
    background-color: white;
    outline: none;
    transition: all 0.2s ease;
}

.tutorial-search-input:focus {
    border-color: #126495;
    box-shadow: 0 0 0 2px rgba(18, 100, 149, 0.1);
}

.tutorial-search-input::placeholder {
    color: #999;
    font-size: 11px;
}

.tutorial-search-button {
    width: 28px;
    height: 28px;
    border: 1px solid #126495;
    border-radius: 4px;
    background-color: #126495;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.tutorial-search-button:hover {
    background-color: #0d4f7a;
    border-color: #0d4f7a;
    transform: scale(1.05);
}

.tutorial-search-button:active {
    transform: scale(0.95);
}

.tutorial-search-button i {
    font-size: 12px;
}

.tutorial-customer-sort-button-container {
    width: 12px;
    height: 12px;
    position: relative;
}

/* 内容容器 */
.tutorial-customer-content-area {
    flex: 1;
    padding: 20px 0;
    display: flex;
    justify-content: center;
}

/* 视频网格容器 */
.tutorial-customer-video-grid {
    width: 100%;
    max-width: 800px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(235px, 1fr));
    gap: 20px;
    padding: 20px;
}

/* 视频卡片 */
.tutorial-customer-video-card {
    width: 100%;
    max-width: 235px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s ease;
}

.tutorial-customer-video-card:hover {
    transform: translateY(-5px);
}

.tutorial-customer-video-preview {
    width: 100%;
    height: 300px;
    /* background-color: #f2f6f2; */
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background-size: cover;
    background-position: center;
}

.tutorial-customer-play-button-container {
    width: 50px;
    height: 50px;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 20px;
    color: #635c5c;
    border-radius: 100%;
    border: 6px solid #635c5c;
    padding-left: 5px;
}

.tutorial-customer-video-info {
    width: 100%;
    padding: 15px;
    background: white;
}

.tutorial-customer-video-badge-container {
    width: 100%;
    display: flex;
    justify-content: center;
    margin-bottom: 10px;
}

.tutorial-customer-video-badge {
    width: 100%;
    height: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tutorial-customer-video-badge img{
    height: 14px;
    width: auto;
}

.tutorial-customer-video-title {
    width: 100%;
    text-align: center;
    color: #101010;
    font-size: 18px;
    line-height: 28px;
    margin-bottom: 5px;
    font-weight: bold;
    /* 限制为1行文本，超出省略 */
    height: 28px; /* 1 * line-height (28px) */
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    word-wrap: break-word;
    word-break: break-word;
}

.tutorial-customer-video-subtitle {
    width: 100%;
    text-align: center;
    color: #2B2B2B;
    font-size: 16px;
    line-height: 25px;
    /* 限制为1行文本，超出省略 */
    height: 25px; /* 1 * line-height (25px) */
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    word-wrap: break-word;
    word-break: break-word;
}

/* 响应式媒体查询 */
@media screen and (max-width: 1200px) {
    .tutorial-customer-content-wrapper {
        padding: 0px 15px;
    }
    
    .tutorial-customer-sidebar {
        width: 200px;
        min-width: 180px;
    }
}

@media screen and (max-width: 992px) {
    /* 显示移动端菜单按钮 */
    .tutorial-mobile-menu-toggle {
        display: flex;
    }
    
    /* 显示遮罩层 */
    .tutorial-mobile-overlay {
        display: block;
    }
    
    .tutorial-customer-content-wrapper {
        padding: 0px 10px;
        position: relative;
    }
    
    /* 移动端侧边栏样式 */
    .tutorial-customer-sidebar {
        position: fixed;
        top: 0;
        left: 0;
        width: 226px;
        height: 100vh;
        z-index: 999;
        background-color: white;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        overflow-y: auto;
        padding: 1px 0;
    }
    
    /* 侧边栏展开状态 */
    .tutorial-customer-sidebar.sidebar-open {
        transform: translateX(0);
    }
    
    /* 主内容区域调整 */
    .tutorial-customer-main-content {
        width: 100%;
        margin-left: 0;
    }
    
    .tutorial-customer-toolbar {
    }
}

@media screen and (max-width: 768px) {
    .tutorial-customer-content-wrapper {
        padding: 0px 10px;
    }
    
    .tutorial-customer-header {
        flex-direction: column;
        height: auto;
        padding: 10px 0;
    }
    
    .tutorial-customer-title {
        margin-bottom: 10px;
    }
    
    .tutorial-customer-toolbar {
        width: 100%;
        border-left: none;
        border-top: 1px solid #126495;
        padding-top: 10px;
        justify-content: space-between;
        gap: 10px;
    }
    
    .tutorial-mobile-menu-icon {
        width: 16px;
        height: 16px;
    }
    
    .tutorial-hamburger-line {
        width: 16px;
        height: 2px;
    }
    
    .tutorial-mobile-menu-toggle.active .tutorial-hamburger-line:nth-child(1) {
        transform: translateY(5px) rotate(45deg);
    }
    
    .tutorial-mobile-menu-toggle.active .tutorial-hamburger-line:nth-child(3) {
        transform: translateY(-5px) rotate(-45deg);
    }
    
    .tutorial-customer-sort-group {
        align-items: flex-start;
        gap: 5px;
    }
    
    .tutorial-customer-sort-label {
        font-size: 12px;
    }
    
    .tutorial-customer-sort-select {
        font-size: 12px;
        padding: 6px 24px 6px 10px;
        min-width: 120px;
    }
    
    .tutorial-customer-sort-arrow {
        font-size: 10px;
        right: 8px;
    }
    
    /* 768px以下搜索样式调整 */
    .tutorial-search-container {
        gap: 6px;
    }
    
    .tutorial-search-input {
        min-width: 100px;
        height: 32px;
        padding: 6px 10px;
        font-size: 12px;
    }
    
    .tutorial-search-button {
        width: 32px;
        height: 32px;
    }
    
    .tutorial-search-button i {
        font-size: 14px;
    }
    
    .tutorial-customer-video-grid {
        padding: 10px;
        grid-template-columns: repeat(2, minmax(5px, 1fr));
    }
    
    /* 移动端侧边栏宽度调整 */
    .tutorial-customer-sidebar {
        width: 280px;
    }
    
    .tutorial-customer-sidebar-section {
        width: 100%;
        margin-bottom: 15px;
    }
}

@media screen and (max-width: 480px) {
    .tutorial-mobile-menu-icon {
        width: 18px;
        height: 18px;
    }
    
    .tutorial-hamburger-line {
        width: 18px;
        height: 2.5px;
    }
    
    .tutorial-mobile-menu-toggle.active .tutorial-hamburger-line:nth-child(1) {
        transform: translateY(6px) rotate(45deg);
    }
    
    .tutorial-mobile-menu-toggle.active .tutorial-hamburger-line:nth-child(3) {
        transform: translateY(-6px) rotate(-45deg);
    }
    
    .tutorial-customer-sort-group {
        width: 100%;
        justify-content: space-between;
    }
    
    .tutorial-customer-sort-dropdown {
        flex: 1;
    }
    
    .tutorial-customer-sort-select {
        width: 100%;
        font-size: 11px;
        padding: 5px 22px 5px 8px;
    }
    
    .tutorial-customer-video-grid {
        padding: 5px;
        gap: 15px;
    }
    
    /* 小屏幕侧边栏宽度调整 */
    .tutorial-customer-sidebar {
        width: 250px;
    }
    
    .tutorial-customer-sidebar-category-title {
        margin-left: 20px;
        font-size: 16px;
    }
    
    .tutorial-customer-sidebar-item-text {
        margin-left: 20px;
        font-size: 12px;
    }
}

/* 小于538px的特殊缩放样式 */
@media screen and (max-width: 538px) {
    /* 为缩放做准备的基础样式 */
    .tutorial-customer-content-area {
        overflow: visible;
        position: relative;
    }
    
    /* 确保网格容器在缩放时保持正确的布局 */
    .tutorial-customer-video-grid {
        width: 100%;
        max-width: none;
        gap: 0;
        padding: 0;
        box-sizing: border-box;
    }
    
    /* 视频卡片在小屏幕缩放时的调整 */
    .tutorial-customer-video-card {
        width: 100%;
        max-width: none;
        margin: 0;
        border-radius: 6px;
    }
    
    /* 移除缩放相关元素的动画过渡效果 */
    .pd-product-card-wrapper {
        transition: none !important;
    }
    
    .pd-product-card {
        transition: none !important;
    }
    
    /* 确保视频卡片内容在缩放时仍可读 */
    .tutorial-customer-video-info {
        padding: 12px;
    }
    
    .tutorial-customer-video-title {
        font-size: 16px;
        line-height: 24px;
        margin-bottom: 8px;
        /* 更新小屏幕下的1行高度限制 */
        height: 24px; /* 1 * line-height (24px) */
    }
    
    .tutorial-customer-video-subtitle {
        font-size: 14px;
        line-height: 20px;
        /* 更新小屏幕下的1行高度限制 */
        height: 20px; /* 1 * line-height (20px) */
    }
}

/* 优化缩放性能的全局样式 */
@media screen and (max-width: 530px) {
    /* 禁用小屏幕下缩放相关元素的过渡动画 */
    .pd-product-card-wrapper,
    .pd-product-card {
        transition: none !important;
        animation: none !important;
    }
    
    /* 确保布局稳定性 */
    .tutorial-customer-main-content {
        transition: min-height 0s !important;
    }
}

/* 特殊情况：在小屏幕下禁用主内容区的高度过渡 */
@media screen and (max-width: 530px) {
    .tutorial-customer-main-content {
        transition: all 0.3s ease, min-height 0s !important;
    }
}

/* 添加平滑过渡效果 */
* {
    box-sizing: border-box;
}

.tutorial-customer-page-container, 
.tutorial-customer-content-wrapper, 
.tutorial-customer-main-content, 
.tutorial-customer-sidebar {
    transition: all 0.3s ease;
}