/* 响应式设计补充 */

/* 平板设备 */
@media (max-width: 1024px) {
    .container {
        padding: 0 15px;
    }
    
    .nav-container {
        padding: 0 15px;
    }
    
    .hero-container {
        padding: 0 15px;
        gap: 40px;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 20px;
    }
    
    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
        gap: 30px;
    }
}

/* 手机设备 */
@media (max-width: 768px) {
    .navbar {
        padding: 0;
    }
    
    .nav-container {
        height: 60px;
        padding: 0 15px;
    }
    
    .logo-text {
        font-size: 20px;
    }
    
    .hero {
        padding-top: 60px;
        min-height: auto;
        padding-bottom: 60px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.2rem;
        margin-bottom: 15px;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
        margin-bottom: 25px;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
        gap: 15px;
    }
    
    .btn {
        padding: 10px 25px;
        font-size: 14px;
    }
    
    .floating-card {
        width: 180px;
        height: 180px;
        margin: 0 auto;
    }
    
    .floating-card i {
        font-size: 70px;
    }
    
    .hero-wave {
        height: 80px;
    }
    
    .hero-wave svg {
        height: 80px;
    }
    
    .products {
        padding: 60px 0;
    }
    
    .section-header {
        margin-bottom: 40px;
    }
    
    .section-title {
        font-size: 1.8rem;
        margin-bottom: 10px;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .product-card {
        padding: 30px 20px;
    }
    
    .product-card.featured {
        transform: none;
    }
    
    .product-card.featured:hover {
        transform: translateY(-5px);
    }
    
    .product-icon {
        width: 60px;
        height: 60px;
        margin-bottom: 15px;
    }
    
    .product-icon i {
        font-size: 24px;
    }
    
    .product-title {
        font-size: 1.3rem;
        margin-bottom: 10px;
    }
    
    .product-description {
        font-size: 0.9rem;
        margin-bottom: 20px;
    }
    
    .price {
        font-size: 1.8rem;
    }
    
    .features {
        padding: 60px 0;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
    
    .feature-item {
        padding: 20px;
    }
    
    .feature-icon {
        width: 50px;
        height: 50px;
        margin-bottom: 15px;
    }
    
    .feature-icon i {
        font-size: 20px;
    }
    
    .feature-title {
        font-size: 1.1rem;
        margin-bottom: 8px;
    }
    
    .feature-description {
        font-size: 0.9rem;
    }
    
    .about {
        padding: 60px 0;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .about-description {
        font-size: 1rem;
        margin-bottom: 15px;
    }
    
    .about-stats {
        justify-content: center;
        gap: 20px;
        margin-top: 20px;
    }
    
    .stat-number {
        font-size: 1.8rem;
    }
    
    .about-card {
        padding: 30px;
        margin: 0 auto;
        max-width: 300px;
    }
    
    .contact {
        padding: 60px 0;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-item {
        margin-bottom: 20px;
    }
    
    .contact-icon {
        width: 40px;
        height: 40px;
    }
    
    .contact-icon i {
        font-size: 16px;
    }
    
    .contact-text h4 {
        font-size: 1rem;
        margin-bottom: 3px;
    }
    
    .contact-text p {
        font-size: 0.9rem;
    }
    
    .contact-form {
        padding: 25px;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 12px;
        font-size: 14px;
    }
    
    .footer {
        padding: 40px 0 15px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
        margin-bottom: 30px;
    }
    
    .footer-logo {
        justify-content: center;
    }
    
    .footer-title {
        margin-bottom: 15px;
    }
    
    .footer-links li {
        margin-bottom: 8px;
    }
}

/* 小屏手机 */
@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }
    
    .btn {
        width: 200px;
        padding: 12px 20px;
    }
    
    .floating-card {
        width: 150px;
        height: 150px;
    }
    
    .floating-card i {
        font-size: 50px;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .about-stats {
        flex-direction: column;
        gap: 15px;
    }
    
    .stat-item {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
    }
    
    .stat-number {
        font-size: 1.6rem;
    }
    
    .contact-form {
        padding: 20px;
    }
}

/* 超大屏 */
@media (min-width: 1400px) {
    .container {
        max-width: 1400px;
    }
    
    .hero-container {
        max-width: 1400px;
    }
    
    .hero-title {
        font-size: 4rem;
    }
    
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 40px;
    }
    
    .features-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 50px;
    }
}

/* 导航菜单动画 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 60px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 20px 0;
        z-index: 999;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-item {
        margin: 15px 0;
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
}