/* 响应式调整 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--secondary-color);
        padding: 20px;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.3);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links li {
        margin: 10px 0;
    }

    .mobile-menu-btn {
        display: block;
    }
    
    .hero-content h1 {
        font-size: 36px;
    }
    
    .hero-content p {
        font-size: 16px;
    }
    
    .hero-list {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
    
    .strategy-tabs {
        flex-direction: column;
    }
    
    .tab-btn {
        width: 100%;
        text-align: left;
    }
    
    .modal-content {
        margin: 20px auto;
    }
    
    .tips-container {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .tip-card {
        padding: 20px;
    }
    
    .tip-card h3 {
        font-size: 18px;
    }
    
    .tip-card p {
        font-size: 14px;
    }
}