/* common类样式 */
        body.common .head_menu-nav {
            background-color: #fff;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

        body.common .head_menu-logo img {
            filter: brightness(1) !important;
        }

        body.common .head_menu-link,
        body.common .head_menu-phone a {
            color: #333 !important;
        }

        body.common .head_menu-toggle span {
            background-color: #1e64bc !important;
        }

        /* 主容器 */
        .head_menu-container {
            width: 100%;
        }

        /* 导航菜单样式 */
        .head_menu-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            transition: all 0.3s ease;
            background-color: transparent;
        }

        /* 滚动时的样式 */
        .head_menu-nav.scrolled {
            background-color: #fff;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

        .head_menu-nav.scrolled .head_menu-logo img {
            filter: brightness(1);
        }

        .head_menu-nav.scrolled .head_menu-link,
        .head_menu-nav.scrolled .head_menu-phone a {
            color: #333;
        }

        .head_menu-nav.scrolled .head_menu-toggle span {
            background-color: #1e64bc;
        }

        /* 导航内容容器 */
        .head_menu-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 1%;
            max-width: 1400px;
            margin: 0 auto;
        }

        /* Logo样式 */
        .head_menu-logo {
            flex: 0 0 auto;
        }

        .head_menu-logo img {
            height: 30px;
            width: auto;
            transition: filter 0.3s ease;
            filter: brightness(0) invert(1);
        }

        /* 导航链接区域 */
        .head_menu-links {
            flex: 1;
            display: flex;
            justify-content: flex-end;
            align-items: center;
            gap: 30px;
        }

        /* 一级分类列表 */
        .head_menu-list {
            display: flex;
            list-style: none;
            gap: 20px;
        }

        /* 一级分类项 - 修改为相对定位，用于二级菜单定位 */
        .head_menu-item {
            position: relative;
            display: flex;
            justify-content: center;
        }

        .head_menu-link {
            text-decoration: none;
            color: white;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 4px;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 5px;
            white-space: nowrap;
        }

        /* 一级分类鼠标悬停效果 */
        .head_menu-item:hover .head_menu-link {
            background-color: #1e64bc;
            color: white !important;
        }

        /* 二级分类下拉菜单 - 居中显示 */
        .head_menu-dropdown {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(15px);
            background-color: white;
            min-width: 200px;
            border-radius: 4px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            z-index: 100;
            padding: 10px 0;
            /* 添加上方的不可见区域，确保鼠标移动时不会丢失悬停 */
            margin-top: 5px;
        }

        /* 添加一个不可见的桥梁区域，连接一级菜单和二级菜单 */
        .head_menu-item::after {
            content: '';
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            height: 20px;
            background: transparent;
            pointer-events: none;
        }

        .head_menu-item:hover::after {
            pointer-events: auto;
        }

        .head_menu-item:hover .head_menu-dropdown {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(5px);
        }

        /* 二级分类项 */
        .head_menu-dropdown-item {
            border-bottom: 1px solid #eee;
        }

        .head_menu-dropdown-item:last-child {
            border-bottom: none;
        }

        .head_menu-dropdown-link {
            display: block;
            padding: 10px 20px;
            text-decoration: none;
            color: #333;
            transition: all 0.3s ease;
            white-space: nowrap;
            text-align: left;
        }

        .head_menu-dropdown-link:hover {
            background-color: #1e64bc;
            color: white;
        }

        /* 电话区域 */
        .head_menu-phone {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .head_menu-phone a {
            text-decoration: none;
            color: white;
            font-weight: 600;
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .head_menu-phone i {
            color: #FF9800;
            font-size: 18px;
        }

        /* 移动端切换按钮 */
        .head_menu-toggle {
            display: none;
            flex-direction: column;
            justify-content: space-between;
            width: 30px;
            height: 21px;
            cursor: pointer;
        }

        .head_menu-toggle span {
            height: 3px;
            width: 100%;
            background-color: white;
            border-radius: 3px;
            transition: all 0.3s ease;
        }

        /* 移动端菜单 */
        .head_menu-mobile {
            display: none;
            background-color: white;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s ease;
        }

        .head_menu-mobile.active {
            max-height: 1000px;
            padding: 20px 5%;
        }

        /* 移动端一级分类 */
        .head_menu-mobile-item {
            border-bottom: 1px solid #eee;
        }

        .head_menu-mobile-link {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
            text-decoration: none;
            color: #333;
            font-weight: 500;
            cursor: pointer;
        }

        .head_menu-mobile-link i {
            transition: transform 0.3s ease;
        }

        .head_menu-mobile-link.active i {
            transform: rotate(180deg);
        }

        /* 移动端二级分类 */
        .head_menu-mobile-sublist {
            list-style: none;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            padding-left: 15px;
        }

        .head_menu-mobile-sublist.active {
            max-height: 500px;
            padding-bottom: 10px;
        }

        .head_menu-mobile-subitem {
            padding: 8px 0;
            border-bottom: 1px solid #f0f0f0;
        }

        .head_menu-mobile-subitem:last-child {
            border-bottom: none;
        }

        .head_menu-mobile-sublink {
            display: block;
            padding: 5px 0;
            text-decoration: none;
            color: #666;
            transition: all 0.3s ease;
        }

        .head_menu-mobile-sublink:hover {
            color: #1e64bc;
        }

        /* 响应式设计 */
        @media (max-width: 1024px) {
            .head_menu-list {
                gap: 15px;
            }
            
            .head_menu-links {
                gap: 20px;
            }
        }

        @media (max-width: 768px) {
            .head_menu-toggle {
                display: flex;
            }
        .head_menu-logo img {
            height: 30px;
        }
            .head_menu-list,
            .head_menu-links .head_menu-phone {
                display: none;
            }

            .head_menu-mobile {
                display: block;
            }
            
            .head_menu-content {
                padding: 15px 20px;
            }
            
            /* 移动端电话样式 */
            .head_menu-mobile .head_menu-phone {
                display: flex;
                padding: 15px 0;
                border-top: 1px solid #eee;
                margin-top: 10px;
            }
            
            .head_menu-mobile .head_menu-phone a {
                color: #333;
            }
        }

        /* 针对特别长的菜单项，调整下拉菜单位置 */
        .head_menu-item:first-child .head_menu-dropdown,
        .head_menu-item:last-child .head_menu-dropdown {
            /* 如果需要，可以特殊处理首尾项，但使用left:50% translateX(-50%)已经可以居中 */
        }

        /* 确保下拉菜单不会超出屏幕 */
        @media (max-width: 1200px) {
            .head_menu-dropdown {
                min-width: 180px;
            }
        }