/* 蜂鸟航空科技网站响应式样式 */

/* 大型设备 (大型桌面, 1200px 及以上) */
@media (min-width: 1200px) {
    .container {
        max-width: 1280px;
    }
}

/* 中型设备 (桌面, 992px 及以上) */
@media (min-width: 992px) and (max-width: 1199px) {
    .container {
        max-width: 960px;
    }
    
    .slide-content h1 {
        font-size: 42px;
    }
    
    .slide-content p {
        font-size: 18px;
    }
    
    .section-header h2 {
        font-size: 32px;
    }
    
    .service-nav-item span {
        font-size: 14px;
    }
}

/* 小型设备 (平板, 768px 及以上) */
@media (min-width: 768px) and (max-width: 991px) {
    .container {
        max-width: 720px;
    }
    
    .header .container {
        height: 70px;
    }
    
    .logo img {
        height: 40px;
    }
    
    .main-nav li {
        margin-left: 20px;
    }
    
    .main-nav a {
        font-size: 14px;
    }
    
    .hero {
        height: 80vh;
        min-height: 500px;
        margin-top: 70px;
    }
    
    .slide-content h1 {
        font-size: 36px;
    }
    
    .slide-content p {
        font-size: 16px;
    }
    
    .btn {
        padding: 10px 25px;
        font-size: 14px;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .section-header p {
        font-size: 16px;
    }
    
    .product-cards,
    .application-infographic,
    .service-features,
    .capabilities-grid,
    .cert-gallery,
    .core-values,
    .contact-info-cards,
    .offices-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .service-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .service-content.reverse {
        flex-direction: column;
    }
    
    .service-image,
    .service-details,
    .about-image,
    .about-text {
        flex: 0 0 100%;
    }
    
    .service-nav-items {
        overflow-x: auto;
        padding-bottom: 10px;
    }
    
    .service-nav-item {
        min-width: 150px;
    }
    
    .flow-steps {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .flow-steps::before {
        display: none;
    }
    
    .flow-step {
        margin: 0 15px 20px;
        flex: 0 0 calc(50% - 30px);
    }
    
    .about-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .footer-content {
        flex-direction: column;
    }
    
    .footer-logo {
        margin-bottom: 30px;
        text-align: center;
    }
    
    .footer-links {
        justify-content: space-around;
    }
    
    .footer-column {
        min-width: 150px;
    }
}

/* 超小型设备 (手机, 767px 以下) */
@media (max-width: 767px) {
    .container {
        max-width: 100%;
        padding: 0 20px;
    }
    
    .header .container {
        height: 60px;
    }
    
    .logo img {
        height: 35px;
    }
    
    .main-nav {
        position: fixed;
        top: 60px;
        left: -100%;
        width: 80%;
        height: calc(100vh - 60px);
        background-color: #fff;
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
        transition: all 0.3s ease;
        z-index: 1000;
        overflow-y: auto;
    }
    
    .main-nav.active {
        left: 0;
    }
    
    .main-nav ul {
        flex-direction: column;
        align-items: flex-start;
        padding: 20px;
    }
    
    .main-nav li {
        margin: 0;
        width: 100%;
        border-bottom: 1px solid #eee;
    }
    
    .main-nav a {
        padding: 15px 0;
    }
    
    .dropdown-content {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        padding: 0 0 0 20px;
        display: none;
    }
    
    .dropdown.active .dropdown-content {
        display: block;
    }
    
    .dropdown-content a {
        padding: 10px 0;
    }
    
    .language-switch {
        margin-top: 20px;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero {
        height: 70vh;
        min-height: 400px;
        margin-top: 60px;
    }
    
    .slide-content h1 {
        font-size: 28px;
    }
    
    .slide-content p {
        font-size: 16px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .section-header h2 {
        font-size: 24px;
    }
    
    .section-header p {
        font-size: 16px;
    }
    
    .products-showcase,
    .industry-applications,
    .partners,
    .contact-cta,
    .service-section,
    .about-section,
    .commitment-section,
    .contact-info-section,
    .contact-form-section,
    .global-offices,
    .careers-section,
    .faq-section {
        padding: 50px 0;
    }
    
    .product-cards,
    .application-infographic,
    .service-features,
    .capabilities-grid,
    .cert-gallery,
    .core-values,
    .contact-info-cards,
    .offices-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-items {
        flex-direction: column;
    }
    
    .stat-item {
        width: 100%;
        margin-bottom: 30px;
    }
    
    .partner-logos {
        gap: 20px;
    }
    
    .partner-logo {
        width: 120px;
        height: 60px;
    }
    
    .service-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .service-content.reverse {
        flex-direction: column;
    }
    
    .service-image,
    .service-details,
    .about-image,
    .about-text {
        flex: 0 0 100%;
    }
    
    .service-nav-items {
        overflow-x: auto;
        padding-bottom: 10px;
        justify-content: flex-start;
    }
    
    .service-nav-item {
        min-width: 120px;
        font-size: 14px;
    }
    
    .flow-steps {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .flow-steps::before {
        display: none;
    }
    
    .flow-step {
        margin: 0 15px 20px;
        flex: 0 0 calc(50% - 30px);
    }
    
    .about-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .footer-content {
        flex-direction: column;
    }
    
    .footer-logo {
        margin-bottom: 30px;
        text-align: center;
    }
    
    .footer-links {
        flex-direction: column;
    }
    
    .footer-column {
        width: 100%;
        margin-bottom: 30px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .social-links,
    .certifications {
        justify-content: center;
    }
    
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .contact-form-container {
        padding: 30px 20px;
    }
    
    .careers-content {
        flex-direction: column;
    }
    
    .job-item {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .aog-sidebar {
        display: none;
    }
    
    #back-to-top {
        right: 20px;
        bottom: 20px;
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
}

/* 超小型设备 (小型手机, 575px 以下) */
@media (max-width: 575px) {
    .slide-content h1 {
        font-size: 24px;
    }
    
    .slide-content p {
        font-size: 14px;
    }
    
    .btn {
        padding: 8px 15px;
        font-size: 12px;
    }
    
    .section-header h2 {
        font-size: 22px;
    }
    
    .section-header p {
        font-size: 14px;
    }
    
    .page-title {
        height: 200px;
    }
    
    .page-title h1 {
        font-size: 28px;
    }
    
    .service-details h2,
    .about-section h2,
    .commitment-section h2 {
        font-size: 24px;
    }
    
    .service-features,
    .data-dashboard {
        grid-template-columns: 1fr;
    }
    
    .comparison-table {
        overflow-x: auto;
    }
    
    .comparison-table table {
        min-width: 500px;
    }
    
    .emergency-response {
        flex-direction: column;
    }
    
    .response-timer,
    .global-service-network {
        min-width: 100%;
    }
    
    .timer-circle {
        width: 150px;
        height: 150px;
    }
    
    .timer-number {
        font-size: 36px;
    }
    
    .response-steps {
        flex-wrap: wrap;
    }
    
    .step {
        flex: 0 0 50%;
        margin-bottom: 20px;
    }
    
    .response-steps::before {
        display: none;
    }
    
    .inquiry-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .term-item {
        flex-direction: column;
    }
    
    .term {
        margin-bottom: 10px;
    }
}