/* 横幅样式 */
    #free-banner {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 60;
        animation: slideDown 0.5s ease-out;
    }
    
    @keyframes slideDown {
        from {
            transform: translateY(-100%);
        }
        to {
            transform: translateY(0);
        }
    }
    
    /* 调整导航栏位置 */
    nav {
        top: 40px !important; /* 为横幅留出空间 */
    }
    
    /* 语言菜单在导航栏中的样式调整 */
    .language-menu .language-toggle {
        background: none;
        border: none;
        color: #6b7280;
        cursor: pointer;
        display: flex;
        align-items: center;
        transition: color 0.3s;
        padding: 0.5rem 0;
    }
    
    .language-menu .language-toggle:hover {
        color: #3498db;
    }
    
    .language-dropdown {
        position: absolute;
        top: 100%;
        right: 0;
        background: white;
        border-radius: 0.5rem;
        box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        padding: 0.5rem 0;
        min-width: 12rem;
        display: none;
        z-index: 50;
        border: 1px solid #e2e8f0;
        margin-top: 0.5rem;
    }
    
    .language-menu:hover .language-dropdown {
        display: block;
    }
    
    .language-dropdown .menu-item {
        display: block;
        padding: 0.5rem 1rem;
        color: #374151;
        text-decoration: none;
    }
    
    .language-dropdown .menu-item:hover {
        background-color: #f3f4f6;
        color: #3498db;
    }
    
    /* 手机端横幅样式调整 */
    @media (max-width: 640px) {
        #free-banner {
            font-size: 0.75rem;
            padding: 0.5rem;
        }
        
        #free-banner .container {
            flex-direction: column;
            gap: 0.25rem;
        }
    }