/* 导航菜单容器 */
        .head_menu_container {
            width: 100%;
             background-image: linear-gradient(#eeeeee, #ffffff, #eeeeee);
            box-shadow-: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: relative;
            z-index: 1000;
        }
        
        /* 导航菜单 */
        .head_menu_nav {
            height: 65px;
            display: flex;
            justify-content: center;
            align-items: center;
            margin: 0 auto;
            position: relative;
        }
        
        /* 一级菜单列表 */
        .head_menu_list {
            display: flex;
            list-style: none;
            height: 100%;
            width: 100%;
            justify-content: space-between;
            align-items: center;
        }
        
        /* 一级菜单项 */
        .head_menu_item {
            position: relative;
            flex: 1;
            text-align: center;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        /* 分隔竖线 */
        .head_menu_item:not(:last-child)::after {
            content: "";
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            height: 20px;
            width: 1px;
            background-color: #ccc;
        }
        
        /* 一级菜单链接 */
        .head_menu_link {
            text-decoration: none;
            color: #333333;
            font-weight: 500;
            font-size: 16px;
            padding: 0 15px;
            display: flex;
            align-items: center;
            height: 100%;
            width: 100%;
            justify-content: center;
            transition: all 0.3s ease;
        }
        
        .head_menu_link:hover {
            background-color: rgba(0, 0, 0, 0.02);color: #ff6600;
        }
        
        /* 二级菜单 */
        .head_menu_submenu {
            position: absolute;
            top: 65px;
            left: 50%;
            transform: translateX(-50%);
             background: rgba(255, 255, 255, 0.85);
            min-width: 140px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            border-radius: 0 0 4px 4px;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            z-index: 1000;
            padding: 0px 0;
        }
        
        .head_menu_item:hover .head_menu_submenu {
            opacity: 1;
            visibility: visible;
        }
        
        /* 二级菜单项 */
        .head_menu_subitem {
            list-style: none;
        }
        
        /* 二级菜单链接 */
        .head_menu_sublink {
            display: block;
            padding: 10px 20px;
            color: #333;
            text-decoration: none;
            font-size: 14px;
            transition: all 0.2s ease;
            text-align: left;
        }
        
        .head_menu_sublink:hover {
            background-color: #f0f0f0;
            color: #000;
        }
        
        /* PC端 - 橙色悬停下划线 */
        @media (min-width: 993px) {
            .head_menu_link {
                position: relative;
            }
            
            .head_menu_link::after {
                content: "";
                position: absolute;
                bottom: 0;
                left: 50%;
                width: 0;
                height: 3px;
                background-color: #ff7700;
                transition: all 0.3s ease;
                transform: translateX(-50%);
            }
            
            .head_menu_link:hover::after {
                width: 80%;
            }
        }
        
        /* 响应式设计 - 平板和移动端 */
        @media (max-width: 992px) {
            .head_menu_nav {
                height: auto;
                padding: 15px;
            }
            
            .head_menu_list {
                display: grid;
                grid-template-columns: repeat(3, 1fr);
                gap: 10px;
            }
            
            .head_menu_item {
                border: 1px solid #ddd;
                border-radius: 4px;
                background: #fff;
                height: 40px;
                box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
            }
            
            .head_menu_item:not(:last-child)::after {
                display: none;
            }
            
            .head_menu_link {
                padding: 10px;
                font-size: 14px;
            }
            
            /* 移除PC端的下划线效果 */
            .head_menu_link::after {
                display: none;
            }
            
            /* 调整二级菜单位置 */
            .head_menu_submenu {
                top: 60px;
                left: 0;
                transform: translateX(0);
                width: 100%;
            }
            
            /* 平板端二级菜单网格布局 */
            @media (max-width: 768px) {
                .head_menu_submenu {
                    position: static;
                    opacity: 1;
                    visibility: visible;
                    display: none;
                    box-shadow: none;
                    border-top: 1px solid #eee;
                    border-radius: 0;
                    padding: 0;
                    background: #f9f9f9;
                }
                
                .head_menu_item.active .head_menu_submenu {
                    display: block;
                }
                
                .head_menu_sublink {
                    padding: 3px 10px 3px 20px;
                    font-size: 13px;
                }
            }
        }