/* 导航菜单容器 - 固定定位 */
        .head_menu {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background-color: #fff;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            z-index: 1000;
        }
        
        /* 为body添加padding-top以避免内容被导航栏遮挡 */
        body {
            padding-top: 80px;
        }
        
        /* 导航栏主体 */
        .head_menu-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1360px;
            margin: 0 auto;
            padding: 0 20px;
            height: 80px;
        }
        
        /* 左侧LOGO */
        .head_menu-logo {
            flex: 0 0 auto;
        }
        
        .head_menu-logo img {
            height: 60px;
            width: auto;
            display: block;
        }
        
        /* 中间导航菜单 */
        .head_menu-nav {
            flex: 1 1 auto;
            display: flex;
            justify-content: center;
        }
        
        .head_menu-nav-list {
            display: flex;
            list-style: none;
        }
        
        .head_menu-nav-item {
            position: relative;
            margin: 0 25px;
        }
        
        .head_menu-nav-link {
            display: flex;
            align-items: center;
            text-decoration: none;
            color: #333;
            font-weight: 500;
            font-size: 16px;
            padding: 30px 0;
            transition: color 0.3s;
            cursor: pointer;
        }
        
        .head_menu-nav-link:hover {
            color: #cc0000;
        }
        
        /* 下拉菜单触发器 - 红色三角形 */
        .head_menu-nav-item:hover::after {
            content: '';
            position: absolute;
            bottom: 0px;
            left: 50%;
            transform: translateX(-50%);
            border-left: 12px solid transparent;
            border-right: 12px solid transparent;
            border-bottom: 12px solid #cc0000;
            z-index: 1002;
        }
        
        /* 通用全屏下拉菜单容器 */
        .head_menu-megamenu-container {
            position: absolute;
            top: 100%;
            left: 20%;
            width: 65%;
            margin: 0 auto;
            background-color: rgba(255, 255, 255, 0.99);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            z-index: 1001;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-0px);
            transition: opacity 0.3s ease, transform 0.3s ease, visibility 0s linear 0.3s;
            padding: 30px 0;
        }
        
        .head_menu-megamenu-container.active {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
            transition: opacity 0.3s ease, transform 0.3s ease, visibility 0s linear 0s;
        }
        
        /* 下拉菜单顶部的红色横线 */
        .head_menu-megamenu-container::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background-color: #cc0000;
        }
        
        /* 下拉菜单内容区域 */
        .head_menu-megamenu-content {
            display: flex;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 左侧分类区域 */
        .head_menu-category-sidebar {
            flex: 0 0 250px;
            background-color: #f5f5f5;
            padding:15px;
			height:50px;
            border-radius: 0px;
        }
        
        .head_menu-category-item {
            display: flex;
            align-items: center;
            margin-bottom: 10px;
            transition: transform 0.2s ease;
        }
        
        .head_menu-category-item:hover {
            transform: translateX(1px);
        }
        
        /* 红色竖线 */
        .head_menu-category-item::before {
            content: '';
            width: 3px;
            height: 20px;
            background-color: #cc0000;
            margin-right: 10px;
            transition: height 0.2s ease;
        }
        
        .head_menu-category-item:hover::before {
            height: 25px;
        }
        
        .head_menu-category-link {
            text-decoration: none;
            color: #333;
            font-weight: 600;
            flex: 1;
            transition: color 0.3s;
        }
        
        .head_menu-category-link:hover {
            color: #cc0000;
        }
        
        /* 右侧箭头 */
        .head_menu-category-arrow {
            color: #999;
            font-size: 14px;
            transition: transform 0.3s, color 0.3s;
        }
        
        .head_menu-category-item:hover .head_menu-category-arrow {
            transform: translateX(3px);
            color: #cc0000;
        }
        
        /* 右侧子分类区域 */
        .head_menu-subcategories {
            flex: 1;
            padding-left: 40px;
        }
        
        .head_menu-subcategory-grid {
            display: grid;
            grid-template-columns: repeat(1, 1fr);
            gap: 0px;
        }
        
        .head_menu-subcategory-col h4 {
            margin-bottom: 15px;
            color: #333;
            font-size: 16px;
            font-weight: 500;
            position: relative;
            padding-top: 8px;
        }
         .head_menu-subcategory-col h4:hover {
            margin-bottom: 15px;
            color: #cc0000;
            font-size: 16px;
            font-weight: 500;
            position: relative;
            padding-top: 8px;
			padding-left: 5px;
			transition: padding-left 0.2s ease;
        } 
        .head_menu-subcategory-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 20px;
            height: 1px;
            background-color0: #cc0000;
        }
        
        .head_menu-subcategory-col ul {
            list-style: none;
        }
        
        .head_menu-subcategory-col li {
            margin-bottom: 10px;
            position: relative;
            padding-left: 10px;
            transition: padding-left 0.2s ease;
        }
        
        .head_menu-subcategory-col li:hover {
            padding-left: 10px;
        }
        
        .head_menu-subcategory-col li::before {
            content: '›';
            position: absolute;
            left: 0;
            color: #cc0000;
            font-weight: bold;
        }
        
        .head_menu-subcategory-link {
            text-decoration: none;
            color: #666;
            font-size: 14px;
            transition: color 0.3s, padding-left 0.3s;
        }
        
        .head_menu-subcategory-link:hover {
            color: #cc0000;
            padding-left: 2px;
        }
        
        /* 不同分类的特色样式 */
        /* 产品中心 */
        .megamenu-1.head_menu-category-item:nth-child(1)::before { background-color: #4CAF50; }
        .megamenu-1.head_menu-category-item:nth-child(2)::before { background-color: #2196F3; }
        .megamenu-1.head_menu-category-item:nth-child(3)::before { background-color: #FF9800; }
        .megamenu-1.head_menu-category-item:nth-child(4)::before { background-color: #9C27B0; }
        .megamenu-1.head_menu-category-item:nth-child(5)::before { background-color: #F44336; }
        
        /* 解决方案 */
        .megamenu-2.head_menu-category-item::before { background-color: #2196F3; }
        .megamenu-2.head_menu-subcategory-col h4::after { background-color: #2196F3; }
        
        /* 技术支持 */
        .megamenu-3.head_menu-category-item::before { background-color: #4CAF50; }
        .megamenu-3.head_menu-subcategory-col h4::after { background-color: #4CAF50; }
        
        /* 客户案例 */
        .megamenu-4.head_menu-category-item::before { background-color: #FF9800; }
        .megamenu-4.head_menu-subcategory-col h4::after { background-color: #FF9800; }
        
        /* 关于我们 */
        .megamenu-5.head_menu-category-item::before { background-color: #9C27B0; }
        .megamenu-5.head_menu-subcategory-col h4::after { background-color: #9C27B0; }
        
        /* 右侧功能区域 */
        .head_menu-actions {
            flex: 0 0 auto;
            display: flex;
            align-items: center;
        }
        
        /* 电话按钮 */
        .head_menu-phone {
            background-color: #cc0000;
            color: white;
            border: none;
            padding: 12px 18px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 16px;
            margin-right: 20px;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .head_menu-phone:hover {
            background-color: #b71c1c;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(211, 47, 47, 0.2);
        }
        
        /* 语言选择器 */
        .head_menu-language {
            position: relative;
            margin-right: 10px;
        }
        
        .head_menu-language-trigger {
            display: flex;
            align-items: center;
            color: #666;
            cursor: pointer;
            padding: 8px 0;
            transition: color 0.3s;
        }
        
        .head_menu-language-trigger:hover {
            color: #cc0000;
        }
        
        .head_menu-language-trigger:hover .head_menu-language-icon,
        .head_menu-language-trigger:hover .head_menu-language-text {
            color: #cc0000;
        }
        
        .head_menu-language-icon {
            margin-right: 8px;
            font-size: 18px;
            transition: color 0.3s;
        }
        
        .head_menu-language-text {
            margin-right: 5px;
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s;
        }
        
        .head_menu-language-arrow {
            font-size: 12px;
            transition: color 0.3s, transform 0.3s;
        }
        
        /* 语言下拉菜单 */
        .head_menu-language-dropdown {
            position: absolute;
            top: 150%;
            right: 1;
            background-color: white;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            min-width: 150px;
            z-index: 1002;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-10px);
            transition: opacity 0.3s ease, transform 0.3s ease, visibility 0s linear 0.3s;
            border-radius: 4px;
            overflow: hidden;
        }
        
        .head_menu-language-dropdown.active {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
            transition: opacity 0.3s ease, transform 0.3s ease, visibility 0s linear 0s;
        }
        
        .head_menu-language-dropdown::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background-color: #cc0000;
        }
        
        .head_menu-language-option {
            display: flex;
            align-items: center;
            padding: 10px 15px;
            text-decoration: none;
            color: #333;
            transition: all 0.2s ease;
            position: relative;
            overflow: hidden;
        }
        
        .head_menu-language-option::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            height: 100%;
            width: 0;
            background-color: rgba(211, 47, 47, 0.1);
            transition: width 0.3s ease;
        }
        
        .head_menu-language-option:hover::before {
            width: 100%;
        }
        
        .head_menu-language-option:hover {
            padding-left: 20px;
        }
        
        .head_menu-language-flag {
            width: 24px;
            height: 16px;
            margin-right: 10px;
            background-size: cover;
            border-radius: 2px;
            transition: transform 0.3s ease;
        }
        
        .head_menu-language-option:hover .head_menu-language-flag {
            transform: scale(1.1);
        }
        
        /* 搜索区域 */
        .head_menu-search {
            position: relative;
        }
        
        .head_menu-search-toggle {
            background: none;
            border: none;
            color: #666;
            font-size: 18px;
            cursor: pointer;
            padding: 5px;
            transition: all 0.3s ease;
        }
        
        .head_menu-search-toggle:hover {
            color: #cc0000;
            transform: scale(1.1);
        }
        
        /* 搜索框 */
        .head_menu-search-box {
            position: absolute;
            top: 160%;
            right: 0;
            background-color: white;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            padding: 15px;
            width: 300px;
            z-index: 1002;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-10px);
            transition: opacity 0.3s ease, transform 0.3s ease, visibility 0s linear 0.3s;
            border-radius: 4px;
        }
        
        .head_menu-search-box.active {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
            transition: opacity 0.3s ease, transform 0.3s ease, visibility 0s linear 0s;
        }
        
        .head_menu-search-form {
            display: flex;
        }
        
        .head_menu-search-input {
            flex: 1;
            padding: 10px 15px;
            border: 1px solid #ddd;
            border-radius: 4px 0 0 4px;
            font-size: 14px;
            outline: none;
            transition: border-color 0.3s;
        }
        
        .head_menu-search-input:focus {
            border-color: #cc0000;
        }
        
        .head_menu-search-submit {
            background-color: #cc0000;
            color: white;
            border: none;
            padding: 10px 15px;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        
        .head_menu-search-submit:hover {
            background-color: #b71c1c;
        }
        
        /* 移动端菜单按钮 - 三条短横线样式 */
        .head_menu-mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: #333;
            cursor: pointer;
            padding: 5px;
            position: relative;
            width: 30px;
            height: 30px;
        }
        
        /* 三条短横线 */
        .head_menu-mobile-toggle .hamburger {
            display: block;
            width: 100%;
            height: 100%;
            position: relative;
        }
        
        .head_menu-mobile-toggle .hamburger-line {
            position: absolute;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: #333;
            transition: all 0.3s ease;
        }
        
        .head_menu-mobile-toggle .hamburger-line:nth-child(1) {
            top: 6px;
        }
        
        .head_menu-mobile-toggle .hamburger-line:nth-child(2) {
            top: 14px;
        }
        
        .head_menu-mobile-toggle .hamburger-line:nth-child(3) {
            top: 22px;
        }
        
        /* 三条短横线转X动画 */
        .head_menu-mobile-toggle.active .hamburger-line:nth-child(1) {
            top: 14px;
            transform: rotate(45deg);
        }
        
        .head_menu-mobile-toggle.active .hamburger-line:nth-child(2) {
            opacity: 0;
        }
        
        .head_menu-mobile-toggle.active .hamburger-line:nth-child(3) {
            top: 14px;
            transform: rotate(-45deg);
        }
        
        /* 移动端菜单 */
        .head_menu-mobile-nav {
            display: none;
            background-color: white;
            padding: 20px;

            border-top: 1px solid #eee;
            opacity: 0;
            transform: translateY(-10px);
            transition: opacity 0.3s ease, transform 0.3s ease;
        }
        
        .head_menu-mobile-nav.active {
            display: block;
            opacity: 1;
            transform: translateY(0);
        }
        
        .head_menu-mobile-list {
            list-style: none;
        }
        
        .head_menu-mobile-item {
            border-bottom: 1px solid #eee;
            overflow: hidden;
        }
        
        .head_menu-mobile-link {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
            text-decoration: none;
            color: #333;
            font-weight: 600;
            transition: color 0.3s;
            position: relative;
        }
        
        .head_menu-mobile-link:hover {
            color: #cc0000;
        }
        
        /* 移动端二级菜单箭头 */
        .head_menu-mobile-arrow {
            font-size: 12px;
            transition: transform 0.3s ease;
        }
        
        .head_menu-mobile-item.has-submenu.active .head_menu-mobile-arrow {
            transform: rotate(180deg);
        }
        
        .head_menu-mobile-submenu {
            display: none;
            padding-left: 20px;
            list-style: none;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }
        
        .head_menu-mobile-submenu.active {
            display: block;
            max-height: 500px;
        }
        
        .head_menu-mobile-submenu li {
            padding: 10px 0;
            position: relative;
            padding-left: 15px;
        }
        
        .head_menu-mobile-submenu li::before {
            content: '›';
            position: absolute;
            left: 0;
            color: #cc0000;
            font-weight: bold;
        }
        
        .head_menu-mobile-submenu a {
            text-decoration: none;
            color: #666;
            font-size: 14px;
            transition: color 0.3s, padding-left 0.3s;
        }
        
        .head_menu-mobile-submenu a:hover {
            color: #cc0000;
            padding-left: 5px;
        }
        
        /* 移动端语言选择器 */
        .head_menu-mobile-language {
            display: none;
            margin-right: 15px;
        }
        
        /* 响应式设计 */
        @media (max-width: 1024px) {
            /* 平板端调整 */
            .head_menu-nav-item {
                margin: 0 10px;
            }
            
            .head_menu-subcategory-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 768px) {
            /* 移动端调整 */
            .head_menu-nav,
            .head_menu-phone,
            .head_menu-language:not(.head_menu-mobile-language) {
                display: none;
            }
            
            /* 修复手机端三个图标的对齐问题 */
            .head_menu-actions {
                display: flex;
                align-items: center;
                justify-content: flex-end;
                gap: 15px;
            }
            
            /* 统一所有图标按钮的容器样式 */
            .head_menu-mobile-language,
            .head_menu-search,
            .head_menu-mobile-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
                height: 40px;
            }
            
            /* 修复语言图标容器 */
            .head_menu-mobile-language .head_menu-language-trigger {
                padding: 0;
                display: flex;
                align-items: center;
                justify-content: center;
                width: 40px;
                height: 40px;
            }
            
            /* 修复搜索图标按钮 */
            .head_menu-search-toggle {
                padding: 0;
                width: 40px;
                height: 40px;
                display: flex;
                align-items: center;
                justify-content: center;
                background: none;
                border: none;
                font-size: 18px;
                cursor: pointer;
                color: #666;
                transition: all 0.3s ease;
            }
            
            /* 修复汉堡菜单按钮 */
            .head_menu-mobile-toggle {
                padding: 0;
                width: 40px;
                height: 40px;
                display: flex;
                align-items: center;
                justify-content: center;
                background: none;
                border: none;
                cursor: pointer;
            }
            
            /* 调整汉堡菜单三条线的位置 */
            .head_menu-mobile-toggle .hamburger {
                position: relative;
                width: 24px;
                height: 18px;
            }
            
            .head_menu-mobile-toggle .hamburger-line {
                position: absolute;
                left: 0;
                width: 100%;
                height: 2px;
                background-color: #333;
                transition: all 0.3s ease;
            }
            
            .head_menu-mobile-toggle .hamburger-line:nth-child(1) {
                top: 0;
            }
            
            .head_menu-mobile-toggle .hamburger-line:nth-child(2) {
                top: 8px;
            }
            
            .head_menu-mobile-toggle .hamburger-line:nth-child(3) {
                top: 16px;
            }
            
            /* 汉堡菜单转X动画调整 */
            .head_menu-mobile-toggle.active .hamburger-line:nth-child(1) {
                top: 8px;
                transform: rotate(45deg);
            }
            
            .head_menu-mobile-toggle.active .hamburger-line:nth-child(2) {
                opacity: 0;
            }
            
            .head_menu-mobile-toggle.active .hamburger-line:nth-child(3) {
                top: 8px;
                transform: rotate(-45deg);
            }
            
            .head_menu-container {
                padding: 0 15px;
            }
            
            .head_menu-search-box {
                width: 250px;
            }
            
            /* 移动端语言选择器隐藏文字 */
            .head_menu-mobile-language .head_menu-language-text {
                display: none;
            }
            
            /* 移动端隐藏通用下拉菜单 */
            .head_menu-megamenu-container {
                display: none !important;
            }
        }
        
        /* 添加额外的响应式调整 */
        @media (max-width: 480px) {
            .head_menu-actions {
                gap: 0px;
            }
            
            .head_menu-mobile-language,
            .head_menu-search,
            .head_menu-mobile-toggle {
                height: 36px;
            }
            
            .head_menu-mobile-language .head_menu-language-trigger,
            .head_menu-search-toggle,
            .head_menu-mobile-toggle {
                width: 36px;
                height: 36px;
            }
            
            .head_menu-mobile-toggle .hamburger {
                width: 22px;
                height: 16px;
            }
            
            .head_menu-search-toggle {
                font-size: 16px;
            }
            
            .head_menu-mobile-language .head_menu-language-icon {
                font-size: 16px;
            }
        }