/* 父元素定位 */
.video_dropdown {
    position: relative;
    display: inline-block;
}

.video_dropdown:hover .zuua_triangle::after {
    border-color: #ff6a00 transparent transparent;
}

.zuua_triangle {
    display: flex;
    /* 使子元素在主轴上居中对齐 */
    justify-content: center;
    /* 使子元素在交叉轴上居中对齐 */
    align-items: center;
}

.zuua_triangle::after {
    content: ' ';
    border-width: 8px 8px 0;
    border-style: solid;
    border-color: #000000 transparent transparent;
    margin-left: 5px;
    -webkit-transition: all 0.2s ease;
    transition: all 0.2s ease;
}

/* 下拉菜单容器 */
.dropdown-content.yspzb {
    position: absolute;
    top: 100%;
    /* 定位到父元素底部 */
    left: -80%;
    width: 300px;
    /* 根据内容调整宽度 */
    background-color: #ffffff;
    box-shadow: 0px 8px 16px rgba(0, 0, 0, 0.1);
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    /* 初始向上偏移，实现滑入效果 */
    pointer-events: none;
    /* 隐藏时禁用点击 */
    transition:
        opacity 0.3s ease,
        visibility 0.3s ease,
        transform 0.3s ease;
    /* 统一过渡时间 */
    text-align: left;
}

/* 子菜单样式 */
.zuua_menu {
    margin-bottom: 15px;
    /* 子菜单间距 */
}

.zuua_menu_label {
    font-size: 16px;
    font-weight: 500;
    color: #333;
    margin-bottom: 8px;
    padding-bottom: 10px;
    display: block;
    border-bottom: 1px solid rgba(0, 0, 0, 0.2);
}

.zuua_menu_li {
    color: #68747f;
    font-size: 14px;
    text-decoration: none;
    display: block;
}

/* 悬浮时激活下拉菜单 */
.video_dropdown:hover .dropdown-content.yspzb {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    /* 回到原位 */
    pointer-events: auto;
    /* 恢复可点击 */
}

/* 子元素逐个显示（通过延迟实现层级效果） */
.video_dropdown:hover .zuua_menu:nth-child(1) .zuua_menu_li {
    transition-delay: 0.1s;
}

.video_dropdown:hover .zuua_menu:nth-child(2) .zuua_menu_li {
    transition-delay: 0.2s;
}

.video_dropdown:hover .zuua_menu:nth-child(3) .zuua_menu_li {
    transition-delay: 0.3s;
}

/* 子元素悬停效果（可选） */
.zuua_menu_li:hover {
    color: #2c8dfc;
    /* 鼠标悬停时文字变蓝色 */
}

@media (max-width: 768px) {
    .dropdown-content.yspzb {
        position: static;
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
}

/* 手机端（768px 以下）样式 */
@media (max-width: 768px) {

    .video_dropdown .zuua_triangle {
        display: flex;
        justify-content: start;
        font-size: 16px;
    }

    .video_dropdown .dropdown-content.yspzb {
        display: none;
    }

    /* 简化主菜单项样式（可选） */
    .video_dropdown .video_list {
        padding: 8px 16px;
        /* 调整内边距 */
        font-size: 14px;
        /* 缩小字体 */
    }

    .zuua_triangle::after {
        display: none;
    }

    .mobile-menu-b li {
        margin: 0 10px;
    }
}