/* 移动端导航栏修复样式 */
@media (max-width: 768px) {
    /* 移动端body padding-top调整 */
    body {
        padding-top: 140px !important;
    }
    
    /* 导航栏样式 - 使用漸變科技藍色 */
    .navbar {
        background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%) !important;
        box-shadow: 0 4px 12px rgba(0,0,0,0.3) !important;
        height: auto !important;
        min-height: 140px !important;
        padding: 10px 0 !important;
    }
    
    /* 导航栏容器布局 */
    .navbar .container {
        flex-direction: column !important;
        align-items: stretch !important;
        height: auto !important;
    }
    
    /* 品牌居中 */
    .navbar-brand {
        align-self: center !important;
        margin: 0 0 15px 0 !important;
        padding: 10px 0 !important;
    }
    
    .navbar-brand img {
        max-height: 40px !important;
        margin-right: 10px !important;
    }
    
    .company-name {
        color: #ffffff !important;
        font-weight: 700 !important;
        text-shadow: 2px 2px 4px rgba(0,0,0,0.8) !important;
        font-size: 1.1rem !important;
    }
    
    .company-name-en {
        color: #ffffff !important;
        font-weight: 500 !important;
        text-shadow: 2px 2px 4px rgba(0,0,0,0.8) !important;
        font-size: 0.8rem !important;
    }
    
    /* 隐藏切换按钮 */
    .navbar-toggler {
        display: none !important;
    }
    
    /* 导航菜单显示 */
    .navbar-collapse {
        display: block !important;
        background: none !important;
        margin: 0 !important;
        padding: 0 !important;
        border: none !important;
    }
    
    /* 导航菜单项横向排列 */
    .navbar-nav {
        flex-direction: row !important;
        justify-content: center !important;
        flex-wrap: wrap !important;
        margin: 0 !important;
        gap: 5px !important;
    }
    
    .nav-item {
        flex: 0 0 auto !important;
    }
    
    .navbar .nav-link {
        color: #ffffff !important;
        font-weight: 600 !important;
        text-shadow: 2px 2px 4px rgba(0,0,0,0.8) !important;
        font-size: 14px !important;
        padding: 8px 12px !important;
        background-color: rgba(255,255,255,0.1) !important;
        margin: 2px !important;
        border-radius: 20px !important;
        text-align: center !important;
        white-space: nowrap !important;
        border: 1px solid rgba(255,255,255,0.2) !important;
        transition: all 0.3s ease !important;
    }
    
    .navbar .nav-link:hover,
    .navbar .nav-link:focus {
        color: #1e3c72 !important;
        background-color: #ffffff !important;
        text-shadow: none !important;
        transform: translateY(-2px) !important;
        box-shadow: 0 4px 8px rgba(0,0,0,0.2) !important;
    }
}

/* 小屏幕设备 */
@media (max-width: 480px) {
    body {
        padding-top: 160px !important;
    }
    
    .navbar {
        min-height: 160px !important;
    }
    
    .navbar .nav-link {
        font-size: 13px !important;
        padding: 6px 10px !important;
    }
    
    .navbar-nav {
        gap: 3px !important;
    }
}

/* 中等屏幕设备 */
@media (min-width: 769px) and (max-width: 1024px) {
    .navbar .nav-link {
        color: #ffffff !important;
        font-weight: 500 !important;
        text-shadow: 1px 1px 2px rgba(0,0,0,0.5) !important;
    }
    
    .navbar .nav-link:hover {
        color: #ffd700 !important;
        text-shadow: 1px 1px 3px rgba(0,0,0,0.6) !important;
    }
}