/* 响应式设计 */

/* 大屏幕设备 (1200px 及以上) */
@media (min-width: 1200px) {
    .hero-title {
        font-size: 4rem;
    }
    
    .hero-subtitle {
        font-size: 1.3rem;
    }
}

/* 中等屏幕设备 (768px - 1199px) */
@media (max-width: 1199px) {
    .hero-container {
        gap: 3rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-graphic {
        font-size: 3rem;
    }
    
    .services-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
    
    .projects-grid {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    }
}

/* 平板设备 (768px - 1023px) */
@media (max-width: 1023px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        justify-content: center;
        align-items: center;
        width: 100%;
    }
    
    .contact-info {
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }
    
    .services-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
    
    .projects-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
    
    .about-stats {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* 手机设备 (767px 及以下) */
@media (max-width: 767px) {
    /* 导航栏响应式 */
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        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: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 1rem 0;
    }
    
    /* 主页横幅响应式 */
    .hero {
        min-height: 80vh;
        padding: 100px 0 50px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .btn {
        width: 200px;
    }
    
    .hero-graphic {
        font-size: 2.5rem;
        gap: 1rem;
    }
    
    /* 服务部分响应式 */
    .services {
        padding: 60px 0;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .section-header p {
        font-size: 1rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .service-card {
        padding: 2rem;
    }
    
    /* 项目案例响应式 */
    .projects {
        padding: 60px 0;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .project-image {
        height: 200px;
    }
    
    .project-content {
        padding: 1.5rem;
    }
    
    /* 关于我们响应式 */
    .about {
        padding: 60px 0;
    }
    
    .about-text h2 {
        font-size: 2rem;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .stat h3 {
        font-size: 2rem;
    }
    
    /* 联系我们响应式 */
    .contact {
        padding: 60px 0;
    }
    
    .contact-item {
        flex-direction: column;
        text-align: center;
        align-items: center;
        width: 100%;
    }
    
    .contact-icon {
        margin-right: 0;
        margin-bottom: 1rem;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        justify-items: center;
        max-width: 100%;
    }
    

    
    /* 页脚响应式 */
    .footer {
        padding: 40px 0 20px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
}

/* 小屏手机设备 (480px 及以下) */
@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .nav-container {
        padding: 0 15px;
    }
    
    .hero-container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 0.9rem;
    }
    
    .btn {
        width: 180px;
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .service-card {
        padding: 1.5rem;
    }
    
    .service-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .project-content {
        padding: 1rem;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
        gap: 1rem;
        justify-items: center;
        max-width: 100%;
    }
    

}

/* 超小屏设备 (320px 及以下) */
@media (max-width: 320px) {
    .hero-title {
        font-size: 1.5rem;
    }
    
    .hero-subtitle {
        font-size: 0.8rem;
    }
    
    .btn {
        width: 160px;
        padding: 8px 16px;
        font-size: 0.8rem;
    }
    
    .section-header h2 {
        font-size: 1.5rem;
    }
    
    .service-card {
        padding: 1rem;
    }
    
    .project-content {
        padding: 0.8rem;
    }
}

/* 横屏模式优化 */
@media (orientation: landscape) and (max-height: 500px) {
    .hero {
        min-height: 100vh;
        padding: 80px 0 40px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 0.9rem;
    }
}

/* 高分辨率屏幕优化 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .hero::before {
        background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 200"><defs><pattern id="grain" width="200" height="200" patternUnits="userSpaceOnUse"><circle cx="100" cy="100" r="2" fill="white" opacity="0.1"/></pattern></defs><rect width="200" height="200" fill="url(%23grain)"/></svg>');
    }
}

/* 打印样式 */
@media print {
    .navbar,
    .hero-buttons,
    .contact-form,
    .footer {
        display: none;
    }
    
    .hero {
        background: white !important;
        color: black !important;
        min-height: auto;
        padding: 20px 0;
    }
    
    .section-header h2 {
        color: black !important;
    }
    
    .service-card,
    .project-card {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}

/* 无障碍优化 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .hero-graphic i {
        animation: none;
    }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    body {
        background-color: #1a1a1a;
        color: #ffffff;
    }
    
    .navbar {
        background: rgba(26, 26, 26, 0.95);
    }
    
    .nav-logo h2,
    .nav-link {
        color: #ffffff;
    }
    
    .services,
    .about {
        background: #2a2a2a;
    }
    
    .service-card,
    .project-card {
        background: #333333;
        color: #ffffff;
    }
    
    .service-card h3,
    .project-content h3 {
        color: #ffffff;
    }
    
    .service-card p,
    .project-content p {
        color: #cccccc;
    }
    

}