// 移动端菜单功能
document.addEventListener('DOMContentLoaded', function() {
    const mobileMenuToggle = document.querySelector('.mobile-menu-toggle');
    const navMenu = document.querySelector('.nav-menu');
    
    if (mobileMenuToggle && navMenu) {
        // 切换菜单显示
        mobileMenuToggle.addEventListener('click', function() {
            navMenu.classList.toggle('active');
            mobileMenuToggle.classList.toggle('active');
            document.body.classList.toggle('menu-open');
        });
        
        // 点击菜单外区域关闭菜单
        document.addEventListener('click', function(event) {
            if (!navMenu.contains(event.target) && !mobileMenuToggle.contains(event.target)) {
                navMenu.classList.remove('active');
                mobileMenuToggle.classList.remove('active');
                document.body.classList.remove('menu-open');
            }
        });
        
        // 防止菜单内点击事件冒泡
        navMenu.addEventListener('click', function(event) {
            event.stopPropagation();
        });
        
        // 菜单项点击后关闭菜单
        const menuItems = navMenu.querySelectorAll('a');
        menuItems.forEach(item => {
            item.addEventListener('click', function() {
                navMenu.classList.remove('active');
                mobileMenuToggle.classList.remove('active');
                document.body.classList.remove('menu-open');
            });
        });
    }
    
    // 窗口大小变化时重置菜单状态
    window.addEventListener('resize', function() {
        if (window.innerWidth > 768) {
            navMenu.classList.remove('active');
            mobileMenuToggle.classList.remove('active');
            document.body.classList.remove('menu-open');
        }
    });
});

// 语言切换功能
function changeLanguage(langCode) {
    if (langCode) {
        window.location.href = '/set_language/' + langCode;
    }
}