/* 响应式设计 */

/* 平板设备 */
@media screen and (max-width: 1024px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 40px;
    }
    
    .cooperation-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

/* 手机设备 */
@media screen and (max-width: 768px) {
    /* 导航栏移动端样式 */
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 20px 0;
        gap: 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-item {
        margin: 15px 0;
    }
    
    .nav-link {
        font-size: 18px;
        padding: 10px;
        display: block;
    }
    
    .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);
    }
    
    /* 首页横幅移动端 */
    .hero {
        padding: 60px 0;
        min-height: 500px;
    }
    
    .hero-container {
        padding: 0 15px;
    }
    
    .hero-content h1 {
        font-size: 32px;
        margin-bottom: 15px;
    }
    
    .hero-content p {
        font-size: 16px;
        margin-bottom: 30px;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
        align-items: center;
    }
    
    .btn {
        padding: 12px 25px;
        font-size: 14px;
        width: 200px;
        text-align: center;
    }
    
    /* 章节标题移动端 */
    .section-title {
        font-size: 28px;
        margin-bottom: 40px;
    }
    
    /* 产品展示移动端 */
    .products-preview {
        padding: 60px 0;
    }
    
    .products-grid {
        gap: 30px;
    }
    
    .product-card {
        padding: 30px 20px;
        margin: 0 10px;
    }
    
    .product-card h3 {
        font-size: 20px;
    }
    
    .product-img {
        height: 150px;
    }
    
    /* 合作伙伴移动端 */
    .cooperation-preview {
        padding: 60px 0;
    }
    
    .cooperation-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .cooperation-text h3 {
        font-size: 24px;
        margin-bottom: 20px;
    }
    
    .cooperation-benefits li {
        font-size: 16px;
    }
    
    /* 工厂图片轮播移动端 */
    .factory-gallery {
        max-width: 100%;
    }
    
    .factory-images {
        height: 200px;
    }
    
    /* 合作伙伴招募海报移动端 */
    .partner-recruitment {
        padding: 60px 0;
    }
    
    .recruitment-banner {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .recruitment-title {
        font-size: 28px;
        margin-bottom: 30px;
    }
    
    .recruitment-benefits {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .benefit-item {
        padding: 15px;
        justify-content: center;
    }
    
    .problem-solution h3 {
        font-size: 24px;
        margin-bottom: 25px;
    }
    
    .problems-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
        margin-bottom: 30px;
    }
    
    .problem-item {
        padding: 12px 16px;
        font-size: 14px;
    }
    
    .solution-text {
        font-size: 16px;
        margin-bottom: 20px;
    }
    
    .btn-cta {
        padding: 12px 25px;
        font-size: 14px;
    }

    /* 优势展示移动端 */
    .advantages-preview {
        padding: 60px 0;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .advantage-item {
        padding: 30px 15px;
    }
    
    .advantage-item h4 {
        font-size: 18px;
    }
    
    /* 页脚移动端 */
    .footer {
        padding: 40px 0 15px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
    
    /* 联系方式移动端 */
    .contact-info {
        align-items: center;
    }
    
    .contact-item {
        justify-content: center;
        gap: 10px;
    }
    
    .contact-item:hover {
        transform: none;
    }
    
    .contact-item span {
        font-size: 13px;
    }
    
    /* WhatsApp链接移动端优化 */
    .whatsapp-link {
        padding: 4px 8px;
        font-size: 12px;
        border-radius: 15px;
    }
    
    .whatsapp-link:hover {
        transform: none;
        box-shadow: 0 2px 8px rgba(37, 211, 102, 0.3);
    }
    
    /* 产品页面移动端 */
    .product-hero {
        padding: 80px 0 60px;
    }
    
    .product-hero-content h1 {
        font-size: 32px;
    }
    
    .product-hero-content p {
        font-size: 16px;
    }
    
    .product-features,
    .product-series,
    .product-applications,
    .product-specs {
        padding: 60px 0;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .product-showcase {
        padding: 60px 0;
    }
    
    .showcase-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        margin-top: 40px;
    }
    
    .showcase-images {
        position: static;
        order: 2;
    }
    
    .showcase-content {
        order: 1;
        padding: 0;
    }
    
    .showcase-content h3 {
        font-size: 28px;
    }
    
    .thumbnail-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }
    
    .thumbnail {
        height: 60px;
    }
    
    .compatibility-tags {
        gap: 8px;
    }
    
    .tag {
        font-size: 12px;
        padding: 6px 12px;
    }
    
    .series-item {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 30px 20px;
    }
    
    .series-item:nth-child(even) {
        grid-template-columns: 1fr;
    }
    
    .series-item:nth-child(even) .series-image,
    .series-item:nth-child(even) .series-content {
        order: unset;
    }
    
    .series-img {
        height: 200px;
    }
    
    .series-content h3 {
        font-size: 24px;
    }
    
    .applications-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .application-item {
        padding: 25px 20px;
    }
    
    .specs-table th,
    .specs-table td {
        padding: 15px 10px;
        font-size: 14px;
    }
    
    .specs-table th {
        font-size: 16px;
    }
}

/* 小屏手机设备 */
@media screen and (max-width: 480px) {
    .nav-container {
        padding: 0 15px;
    }
    
    .nav-logo .logo-img {
        height: 30px;
        max-width: 100px;
    }
    
    .hero-content h1 {
        font-size: 28px;
    }
    
    .hero-content p {
        font-size: 14px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .product-card {
        margin: 0 5px;
        padding: 25px 15px;
    }
    
    .cooperation-text h3 {
        font-size: 20px;
    }
    
    .advantage-item h4 {
        font-size: 16px;
    }
    
    .btn {
        width: 180px;
        padding: 10px 20px;
        font-size: 13px;
    }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    .product-card:hover,
    .advantage-item:hover {
        transform: none;
    }
    
    .btn:hover {
        transform: none;
    }
    
    .nav-link:hover {
        color: #333;
    }
    
    .nav-link:hover::after {
        width: 0;
    }
}

/* 高分辨率屏幕优化 */
@media screen and (min-width: 1400px) {
    .container {
        max-width: 1400px;
    }
    
    .nav-container {
        max-width: 1400px;
    }
    
    .hero-container {
        max-width: 1400px;
    }
    
    .hero-content h1 {
        font-size: 52px;
    }
    
    .section-title {
        font-size: 40px;
    }
}

/* 关于我们页面响应式 */
@media (max-width: 768px) {
    .about-hero {
        padding: 100px 0 60px;
    }

    .about-hero-content h1 {
        font-size: 2rem;
    }

    .about-hero-content p {
        font-size: 1rem;
    }

    .company-intro {
        padding: 60px 0;
    }

    .intro-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .intro-text h2 {
        font-size: 2rem;
    }

    .company-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
        margin-top: 2rem;
    }

    .stat-item h3 {
        font-size: 2rem;
    }

    .company-img {
        height: 250px;
    }

    .factory-showcase {
        padding: 60px 0;
    }

    .factory-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .factory-img {
        height: 200px;
    }

    .factory-info {
        padding: 1.5rem;
    }

    .company-culture {
        padding: 60px 0;
    }

    .culture-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .culture-item {
        padding: 1.5rem;
    }

    .certifications {
        padding: 60px 0;
    }

    .cert-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .cert-item {
        padding: 1.5rem;
    }

    .company-timeline {
        padding: 60px 0;
    }

    .timeline::before {
        left: 30px;
    }

    .timeline-item {
        flex-direction: row !important;
        margin-bottom: 2rem;
    }

    .timeline-year {
        width: 60px;
        height: 60px;
        font-size: 1rem;
        margin: 0 1rem 0 0;
        flex-shrink: 0;
    }

    .timeline-content {
        max-width: none;
        padding: 1.5rem;
    }

    .timeline-content h3 {
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    .about-hero-content h1 {
        font-size: 1.8rem;
    }

    .intro-text h2 {
        font-size: 1.8rem;
    }

    .company-stats {
        grid-template-columns: 1fr;
    }

    .culture-grid {
        gap: 1.5rem;
    }

    .cert-grid {
        grid-template-columns: 1fr;
    }

    .timeline-year {
        width: 50px;
        height: 50px;
        font-size: 0.9rem;
    }

    .timeline-content {
        padding: 1rem;
    }
}

/* 联系我们页面响应式 */
@media (max-width: 768px) {
    .contact-hero {
        padding: 100px 0 60px;
    }

    .contact-hero-content h1 {
        font-size: 2rem;
    }

    .contact-hero-content p {
        font-size: 1rem;
    }

    .contact-info-section {
        padding: 60px 0;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .contact-details h2,
    .contact-form-container h2 {
        font-size: 2rem;
    }

    .contact-item-detail {
        padding: 1.5rem;
        gap: 1rem;
    }

    .contact-form-container {
        padding: 2rem;
    }

    .company-showcase {
        padding: 60px 0;
    }

    .showcase-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
    }

    .showcase-content {
        padding: 20px;
    }

    .faq-section {
        padding: 60px 0;
    }

    .faq-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .faq-item {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .contact-hero-content h1 {
        font-size: 1.8rem;
    }

    .contact-details h2,
    .contact-form-container h2 {
        font-size: 1.8rem;
    }

    .contact-item-detail {
        flex-direction: column;
        text-align: center;
        padding: 1rem;
    }

    .contact-form-container {
        padding: 1.5rem;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 0.8rem;
    }

    .submit-btn {
        padding: 0.8rem 1.5rem;
    }

    .showcase-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .showcase-content {
        padding: 15px;
    }

    .showcase-content h3 {
        font-size: 1.1rem;
    }

    .faq-item {
        padding: 1rem;
    }
}

/* 打印样式 */
@media print {
    .navbar,
    .hamburger,
    .hero-buttons,
    .btn {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .hero {
        margin-top: 0;
        padding: 20px 0;
    }
    
    .section-title {
        font-size: 18pt;
        margin-bottom: 20px;
    }
    
    .products-preview,
    .cooperation-preview,
    .advantages-preview {
        padding: 30px 0;
    }
}