/* 防止与其他样式冲突的前缀 */
        .head_menu_container {
            width: 100%;
        }

        /* 第1行 - 顶部信息栏 */
        .head_menu_topbar {
            background-color: #f6f6f6;
            color: #666;
			
            padding: 10px 50px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 14px;
            transition: transform 0.3s ease;
            z-index: 1002;
        }

        /* 页面滚动时隐藏顶部栏 */
        .head_menu_topbar.hidden {
            transform: translateY(-100%);
        }

        /* 移动端隐藏顶部栏 */
        @media (max-width: 992px) {
            .head_menu_topbar {
                display: none;
            }
        }

        .head_menu_lang {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .head_menu_lang a {
            color: #666;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 5px;
            transition: color 0.2s;
        }

        .head_menu_lang a:hover {
            color: #eb6622;
        }

        /* 第2行 - 主导航栏 */
        .head_menu_navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
            background-color: white;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
            position: relative;
            z-index: 1001;
            transition: all 0.3s ease;
        }

        /* 固定导航栏样式 */
        .head_menu_navbar.fixed {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            animation: slideDown 0.3s ease;
        }

        @keyframes slideDown {
            0% { transform: translateY(-100%); }
            100% { transform: translateY(0); }
        }

        /* Logo样式 */
        .head_menu_logo {
            height: 40px;
            display: flex;
            align-items: center;
            flex-shrink: 0;
        }

        .head_menu_logo img {
            height: 100%;
            width: auto;
        }

        /* 桌面端导航菜单容器 */
        .head_menu_nav_wrapper {
            display: flex;
            align-items: center;
            flex: 1;
            justify-content: flex-end;
            margin-right: 20px; /* 增加与搜索图标的间距 */
        }

        @media (max-width: 992px) {
            .head_menu_nav_wrapper {
                display: none;
            }
        }

        /* 桌面端导航菜单 */
        .head_menu_nav {
            display: flex;
            align-items: center;
            gap: 35px; /* 增加一级菜单之间的间距 */
            margin-right: 30px; /* 菜单整体向右移动，靠近搜索图标 */
        }

        /* 一级菜单项 */
        .head_menu_item {
            position: relative;
            padding: 10px 0;
        }

        .head_menu_item > a {
            color: #333;
            text-decoration: none;
            font-weight: 500;
            font-size: 16px;
            padding: 5px 0;
            position: relative;
            transition: color 0.3s;
            white-space: nowrap;
        }

        .head_menu_item > a:hover {
            color: #eb6622;
        }

        /* 一级菜单底部红线动画 */
        .head_menu_item > a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background-color: #eb6622;
            transition: width 0.3s ease;
        }

        .head_menu_item > a:hover::after {
            width: 100%;
        }

        /* 二级菜单 */
        .head_menu_dropdown {
            position: absolute;
            top: 150%;
            left: 50%;
            transform: translateX(-50%);
            background-color: white;
            min-width: 150px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
            border-radius: 5px;
            padding: 15px 0;
			text-align:center;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            z-index: 1000;
        }

        .head_menu_item:hover .head_menu_dropdown {
            opacity: 1;
            visibility: visible;
            top: calc(100% + 5px);
        }

        .head_menu_dropdown::before {
            content: '';
            position: absolute;
            top----: -10px;
            left: 50%;
            transform: translateX(-50%);
            border-left: 10px solid transparent;
            border-right: 10px solid transparent;
            border-bottom: 10px solid white;
        }

        .head_menu_subitem {
            list-style: none;
        }

        .head_menu_subitem:not(:last-child) {
            border-bottom: 1px solid #f0f0f0;
        }

        .head_menu_subitem a {
            display: block;
            padding: 12px 20px;
            color: #555;
            text-decoration: none;
            transition: all 0.2s;
            line-height: 1.4;
        }

        .head_menu_subitem a:hover {
            background-color: #f9f9f9;
            color: #eb6622;
            padding-left: 25px;
        }

        /* 搜索区域 */
        .head_menu_search {
            position: relative;
            display: flex;
            align-items: center;
            flex-shrink: 0;
        }

        @media (max-width: 992px) {
            .head_menu_search {
                display: none;
            }
        }

        .head_menu_search_btn {
            background: none;
            border: none;
            color: #333;
            font-size: 18px;
            cursor: pointer;
            padding: 5px;
            transition: color 0.2s;
        }

        .head_menu_search_btn:hover {
            color: #eb6622;
        }

        .head_menu_search_box {
            position: absolute;
            top: 100%;
            right: 0;
            background-color: white;
            padding: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            border-radius: 5px;
            width: 300px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.3s ease;
        }

        .head_menu_search:hover .head_menu_search_box {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .head_menu_search_form {
            display: flex;
            align-items: center;
            background-color: #f5f5f5;
            border-radius: 30px;
            overflow: hidden;
        }

        .head_menu_search_input {
            flex: 1;
            border: none;
            background: transparent;
            padding: 12px 15px;
            font-size: 14px;
            outline: none;
        }

        .head_menu_search_submit {
            background: none;
            border: none;
            color: #666;
            padding: 12px 15px;
            cursor: pointer;
            transition: color 0.2s;
        }

        .head_menu_search_submit:hover {
            color: #eb6622;
        }

        /* 移动端控制区域 */
        .head_menu_mobile_controls {
            display: none;
            align-items: center;
            gap: 15px;
        }

        @media (max-width: 992px) {
            .head_menu_mobile_controls {
                display: flex;
            }
            
            /* 调整导航栏的flex布局 */
            .head_menu_navbar {
                padding: 12px 15px;
            }
        }

        .head_menu_mobile_lang {
            position: relative;
        }

        .head_menu_mobile_lang_btn {
            background: none;
            border: none;
            font-size: 20px;
            color: #333;
            cursor: pointer;
            padding: 5px;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            transition: all 0.2s;
        }

        .head_menu_mobile_lang_btn:hover {
            background-color: #f5f5f5;
            color: #eb6622;
        }

        .head_menu_mobile_lang_dropdown {
            position: absolute;
            top: 100%;
            right: 0;
            background-color: white;
            min-width: 150px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            border-radius: 5px;
            padding: 10px 0;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.3s ease;
            z-index: 1000;
        }

        .head_menu_mobile_lang_dropdown.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .head_menu_mobile_lang_item {
            list-style: none;
        }

        .head_menu_mobile_lang_item a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 15px;
            color: #555;
            text-decoration: none;
            transition: all 0.2s;
        }

        .head_menu_mobile_lang_item a:hover {
            background-color: #f5f5f5;
            color: #eb6622;
        }

        /* 移动端菜单开关按钮 */
        .head_menu_mobile_toggle {
            font-size: 24px;
            color: #333;
            background: none;
            border: none;
            cursor: pointer;
            padding: 5px;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            transition: all 0.2s;
        }

        .head_menu_mobile_toggle:hover {
            background-color: #f5f5f5;
            color: #eb6622;
        }

        /* 移动端菜单 */
        .head_menu_mobile_nav {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: 300px;
            background-color: white;
            box-shadow: 5px 0 15px rgba(0, 0, 0, 0.1);
            padding: 20px;
            overflow-y: auto;
            transform: translateX(-100%);
            transition: transform 0.4s ease;
            z-index: 1003;
        }

        .head_menu_mobile_nav.show {
            transform: translateX(0);
        }

        .head_menu_mobile_close {
            background: none;
            border: none;
            font-size: 24px;
            color: #333;
            position: absolute;
            top: 15px;
            right: 15px;
            cursor: pointer;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            transition: all 0.2s;
        }

        .head_menu_mobile_close:hover {
            background-color: #f5f5f5;
        }

        .head_menu_mobile_logo {
            height: 40px;
            margin-bottom: 30px;
        }

        .head_menu_mobile_logo img {
            height: 100%;
            width: auto;
        }

        /* 移动端菜单项 - 修复布局 */
        .head_menu_mobile_item {
            border-bottom: 1px solid #f0f0f0;
            padding: 0;
        }

        /* 一级菜单项容器 - 修复布局 */
        .head_menu_mobile_item_header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
            padding: 15px 0;
        }

        .head_menu_mobile_item > a {
            color: #333;
            text-decoration: none;
            font-weight: 600;
            font-size: 16px;
            flex: 1;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            display: block;
        }

        .head_menu_mobile_subtoggle {
            background: none;
            border: none;
            color: #777;
            font-size: 14px;
            cursor: pointer;
            width: 30px;
            height: 30px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            transition: all 0.3s;
            flex-shrink: 0;
            margin-left: 10px;
        }

        .head_menu_mobile_subtoggle:hover {
            background-color: #f5f5f5;
        }

        .head_menu_mobile_subtoggle.rotate {
            transform: rotate(90deg);
        }

        /* 二级菜单容器 */
        .head_menu_mobile_submenu {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            width: 100%;
            margin-left: 0;
        }

        .head_menu_mobile_submenu.show {
            max-height: 500px;
        }

        .head_menu_mobile_subitem a {
            display: block;
            padding: 12px 15px;
            color: #666;
            text-decoration: none;
            border-left: 3px solid #f0f0f0;
            margin-left: 10px;
            transition: all 0.2s;
        }

        .head_menu_mobile_subitem a:hover {
            border-left-color: #eb6622;
            color: #eb6622;
        }

        .head_menu_overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: rgba(0, 0, 0, 0.5);
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            z-index: 1002;
        }

        .head_menu_overlay.show {
            opacity: 1;
            visibility: visible;
        }

        /* 平板端优化 */
        @media (max-width: 768px) {
            .head_menu_navbar {
                padding: 10px 12px;
            }
            
            .head_menu_logo {
                height: 35px;
            }
            
            .head_menu_mobile_controls {
                gap: 10px;
            }
            
            .head_menu_mobile_lang_btn,
            .head_menu_mobile_toggle {
                width: 36px;
                height: 36px;
                font-size: 18px;
            }
            
            .head_menu_mobile_nav {
                width: 280px;
            }
        }

        @media (max-width: 480px) {
            .head_menu_navbar {
                padding: 8px 10px;
            }
            
            .head_menu_logo {
                height: 30px;
            }
            
            .head_menu_mobile_controls {
                gap: 8px;
            }
            
            .head_menu_mobile_lang_btn,
            .head_menu_mobile_toggle {
                width: 32px;
                height: 32px;
                font-size: 16px;
            }
            
            .head_menu_mobile_nav {
                width: 260px;
                padding: 15px;
            }
        }

        /* 主内容区域，用于演示 */
        .head_menu_content {
            padding: 30px 20px;
            max-width: 1200px;
            margin: 0 auto;
        }

        .head_menu_content h1 {
            margin-bottom: 20px;
            color: #333;
        }

        .head_menu_content p {
            margin-bottom: 15px;
            line-height: 1.6;
            color: #555;
        }

        .head_menu_content .placeholder {
            height: 800px;
            background: linear-gradient(to bottom, #f9f9f9, #e9e9e9);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #999;
            font-size: 20px;
            margin-top: 30px;
            border-radius: 5px;
        }