/* 响应式样式 */
@media (max-width: 1200px) {
    .container {
        max-width: 960px;
    }
}

@media (max-width: 992px) {
    .container {
        max-width: 720px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .header .actions .phone {
        display: none;
    }
    
    .hero-content, .product-grid, .tech-grid, .advantages-grid {
        max-width: 90%;
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-image img {
        max-width: 85%;
        margin: 0 auto;
        transform: translateY(0);
        animation: float 6s ease-in-out infinite;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-image {
        height: 300px;
    }
    
    .contact-info {
        order: -1;
    }
    
    .tab-pane.active {
        flex-direction: column;
    }
    
    .tab-image {
        max-width: 100%;
        margin-bottom: 20px;
    }
    
    .advantages-list {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .container {
        max-width: 100%;
        padding: 0 15px;
    }

    html, body {
        width: 100%;
        overflow-x: hidden;
    }
    
    body {
        font-size: 15px;
    }
    
    .header {
        width: 100%;
        padding: 15px 0;
    }

    .nav {
        display: none;
    }

    .actions {
        display: none;
    }
    
    .menu-toggle {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        width: 44px;
        height: 44px;
        background: transparent;
        border: none;
        cursor: pointer;
        padding: 12px 10px;
        border-radius: 10px;
        touch-action: manipulation;
        z-index: 1100;
    }
    
    .menu-toggle span {
        display: block;
        width: 24px;
        height: 2px;
        background-color: var(--text-color);
        transition: transform 0.3s ease, opacity 0.3s ease;
        border-radius: 2px;
        margin: 0 auto;
    }
    
    .menu-toggle.active span:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
        background-color: var(--primary-color);
    }
    
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active span:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
        background-color: var(--primary-color);
    }
    
    .mobile-nav {
        display: block;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        height: 100dvh;
        background: rgba(255, 255, 255, 0.98);
        padding-top: 80px;
        padding-top: calc(80px + env(safe-area-inset-top));
        z-index: 1000;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }
    
    .mobile-nav.active {
        display: block;
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    
    .mobile-nav-list {
        padding: 20px;
        overflow-y: auto;
        max-height: calc(100vh - 120px);
        max-height: calc(100dvh - 120px - env(safe-area-inset-top));
        padding-bottom: calc(20px + env(safe-area-inset-bottom));
    }
    
    .mobile-nav-list li {
        margin-bottom: 15px;
        transform: translateY(20px);
        opacity: 0;
        transition: transform 0.4s ease, opacity 0.4s ease;
    }
    
    .mobile-nav.active .mobile-nav-list li {
        transform: translateY(0);
        opacity: 1;
    }
    
    .mobile-nav.active .mobile-nav-list li:nth-child(1) { transition-delay: 0.1s; }
    .mobile-nav.active .mobile-nav-list li:nth-child(2) { transition-delay: 0.15s; }
    .mobile-nav.active .mobile-nav-list li:nth-child(3) { transition-delay: 0.2s; }
    .mobile-nav.active .mobile-nav-list li:nth-child(4) { transition-delay: 0.25s; }
    .mobile-nav.active .mobile-nav-list li:nth-child(5) { transition-delay: 0.3s; }
    .mobile-nav.active .mobile-nav-list li:nth-child(6) { transition-delay: 0.35s; }
    .mobile-nav.active .mobile-nav-list li:nth-child(7) { transition-delay: 0.4s; }
    
    .mobile-nav-list a {
        display: block;
        padding: 15px 20px;
        font-size: 1.1rem;
        color: var(--text-color);
        border-radius: 12px;
        transition: var(--transition);
        font-weight: 500;
    }
    
    .mobile-nav-list a:hover,
    .mobile-nav-list a:active {
        background: var(--gray-light);
        color: var(--primary-color);
        transform: translateX(5px);
    }
    
    .mobile-cta {
        display: inline-block;
        width: 100%;
        background: var(--gradient);
        color: var(--white) !important;
        text-align: center;
        padding: 15px !important;
        margin-top: 20px;
        border-radius: 50px !important;
        box-shadow: 0 4px 15px rgba(67, 97, 238, 0.2);
    }
    
    .mobile-cta:hover {
        transform: translateY(-2px) !important;
        box-shadow: 0 8px 20px rgba(67, 97, 238, 0.3);
    }
    
    .hero {
        padding: 120px 0 50px;
        width: 100%;
        margin: 0;
        overflow-x: hidden;
    }
    
    .hero-shapes {
        overflow: hidden;
        width: 100%;
        height: 100%;
    }
    
    .hero-badge {
        background-color: rgba(67, 97, 238, 0.15);
        margin-top: 10px;
        padding: 7px 15px;
        font-size: 14px;
        border-radius: 30px;
        display: inline-block;
        margin-bottom: 20px;
    }
    
    .hero .container {
        flex-direction: column;
        padding: 0 10px;
        margin: 0;
        width: 100%;
        max-width: 100%;
    }
    
    .hero-content {
        margin-bottom: 30px;
        text-align: center;
        padding: 0 5px;
        width: 100%;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-features {
        justify-content: center;
    }
    
    .feature-item {
        margin: 0 10px;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
        margin-bottom: 30px;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .product-card {
        padding: 30px 25px;
    }
    
    .icon-wrapper {
        width: 70px;
        height: 70px;
        font-size: 28px;
        margin-bottom: 20px;
        box-shadow: 0 10px 20px rgba(67, 97, 238, 0.1);
    }
    
    .cta-button, .apply-btn, .tab-button, .faq-question {
        padding: 14px 28px;
    }

    .legal-page {
        padding: 110px 0 45px;
    }

    .legal-title {
        font-size: 1.95rem;
    }

    .legal-content {
        padding: 22px;
    }
    
    .about-hero {
        padding: 120px 0 70px;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-dot {
        left: 20px;
    }
    
    .timeline-content {
        width: calc(100% - 50px);
        left: 50px !important;
    }
    
    .footer {
        padding: 50px 0 30px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer h3 {
        margin-bottom: 15px;
    }
    
    .copyright {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .products {
        padding: 70px 0 50px;
    }
    
    .contact {
        padding: 70px 0;
    }
    
    .contact-info-card {
        padding: 30px;
    }
    
    .contact-header h3 {
        font-size: 1.5rem;
    }
    
    .qrcode-wrapper {
        width: 100px;
        height: 100px;
    }
    
    .contact-image {
        height: 250px;
    }
    
    .image-overlay {
        padding: 20px 15px 15px;
    }
    
    .image-overlay h3 {
        font-size: 1.3rem;
    }
    
    .contact-card {
        padding: 30px;
    }
    
    .card-icon {
        width: 70px;
        height: 70px;
        font-size: 28px;
    }
    
    .contact-card h3 {
        font-size: 1.5rem;
    }
    
    .service-features {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    
    .tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 5px;
        justify-content: flex-start;
    }
    
    .tab-button {
        flex: 0 0 auto;
        min-width: 120px;
        padding: 15px 10px;
        font-size: 14px;
    }
    
    .tab-button i {
        font-size: 20px;
        margin-bottom: 5px;
    }
    
    .tab-content {
        padding: 25px 15px;
    }
    
    .advantages-list {
        grid-template-columns: 1fr;
    }
    
    .advantage-item {
        font-size: 14px;
        padding: 8px 12px;
    }
    
    .feature-card {
        padding: 25px 20px;
    }
    
    .feature-icon {
        width: 60px;
        height: 60px;
        font-size: 24px;
    }
    
    .features-grid {
        gap: 20px;
    }
}

@media (max-width: 576px) {
    body {
        width: 100%;
        overflow-x: hidden;
    }
    
    .container {
        width: 100%;
        padding: 0 10px;
        max-width: 100%;
    }
    
    .hero {
        padding: 120px 0 50px;
        width: 100%;
        max-width: 100%;
        margin: 0;
    }
    
    .hero-badge {
        display: block;
        margin-top: 20px;
        margin-bottom: 15px;
        padding: 8px 16px;
        font-size: 14px;
        position: relative;
        z-index: 10;
        width: fit-content;
        margin-left: auto;
        margin-right: auto;
        text-align: center;
    }
    
    .hero-title {
        font-size: 1.8rem;
        line-height: 1.4;
        margin-bottom: 15px;
    }
    
    .hero-title br {
        display: none;
    }
    
    .hero-title span {
        font-size: 1.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 25px;
    }
    
    .hero-cta {
        flex-direction: row;
        justify-content: center;
        gap: 12px;
        margin-bottom: 25px;
        width: 100%;
    }
    
    .cta-button, .cta-outline {
        padding: 12px;
        font-size: 15px;
        min-width: 140px;
        height: 44px;
    }
    
    .hero-image {
        width: 100%;
        padding: 0;
    }
    
    .hero-features {
        display: inline-flex;
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        flex-wrap: nowrap;
        gap: 12px;
        width: auto;
    }
    
    .feature-item {
        margin: 0;
        font-size: 13px;
    }

    .feature-icon {
        width: 18px;
        display: inline-flex;
        justify-content: center;
        flex: 0 0 18px;
    }

    .feature-text {
        text-align: left;
    }
    
    .breadcrumb {
        display: none;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .product-card {
        padding: 20px;
    }
    
    .product-card h3 {
        font-size: 1.2rem;
    }
    
    a:active, button:active {
        opacity: 0.7;
    }
    
    input, textarea, select {
        font-size: 16px;
    }
    
    .footer {
        padding: 50px 0 30px;
    }
    
    .footer-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 35px;
    }
    
    .copyright {
        font-size: 0.9rem;
    }
    
    .contact {
        padding: 50px 0;
    }
    
    .contact-info-card {
        padding: 20px;
    }
    
    .contact-method {
        padding: 12px;
    }
    
    .contact-method i {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
    
    .method-details h4 {
        font-size: 1rem;
    }
    
    .qrcode-container {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .qrcode-wrapper {
        margin-right: 0;
        margin-bottom: 15px;
    }
    
    .contact-image {
        height: 200px;
    }
    
    .image-overlay h3 {
        font-size: 1.2rem;
    }
    
    .image-overlay p {
        font-size: 0.9rem;
    }
    
    .contact-card {
        padding: 20px;
    }
    
    .card-icon {
        width: 60px;
        height: 60px;
        font-size: 24px;
    }
    
    .contact-card h3 {
        font-size: 1.3rem;
    }
    
    .contact-card p {
        font-size: 0.95rem;
    }
    
    .feature {
        padding: 8px;
    }
    
    .feature span {
        font-size: 0.9rem;
    }
    
    .tabs-container {
        border-radius: 10px;
        margin-top: 30px;
    }
    
    .hero-cta {
        display: flex;
        flex-direction: row;
        flex-wrap: nowrap;
        justify-content: center;
        gap: 15px;
        width: 100%;
    }
    
    .cta-button, .cta-outline {
        padding: 12px 20px;
        min-width: auto;
        font-size: 15px;
        flex: 0 1 auto;
    }
}

/* 超小屏幕设备 */
@media (max-width: 375px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-cta {
        flex-direction: column;
        gap: 10px;
    }
    
    .cta-button, .cta-outline {
        width: 100%;
        min-width: 100%;
        padding: 10px 16px;
    }
    
    .cta-button i, .cta-outline i {
        font-size: 14px;
        margin-right: 6px;
    }
    
    .qrcode-wrapper {
        width: 140px;
        height: 140px;
    }
    
    .about-hero h1 {
        font-size: 1.8rem;
    }
}

/* 手势支持 */
@media (hover: none) {
    .product-card:hover, .tech-item:hover, .advantage-item:hover {
        transform: none;
    }
    
    .swipe-hint {
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 15px 0;
        color: var(--text-light);
        font-size: 0.9rem;
    }
    
    .swipe-hint i {
        margin-right: 5px;
        animation: swipeAnimation 1.5s infinite;
    }
    
    @keyframes swipeAnimation {
        0% {
            transform: translateX(0);
        }
        50% {
            transform: translateX(5px);
        }
        100% {
            transform: translateX(0);
        }
    }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    .header {
        background-color: rgba(33, 33, 33, 0.8);
    }
    
    .header.scrolled {
        background-color: rgba(33, 33, 33, 0.95);
    }
}

/* 减少动画 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

@media (max-width: 480px) {
    .hero {
        padding-top: 130px;
    }
    
    .hero-content {
        padding-top: 15px;
    }
    
    .hero-badge {
        margin-top: 0;
        background-color: rgba(67, 97, 238, 0.2);
        padding: 10px 20px;
        font-weight: bold;
        box-shadow: 0 5px 15px rgba(67, 97, 238, 0.15);
    }
    
    .hero-title {
        font-size: 1.9rem;
        padding: 0 5px;
    }
    
    .hero-subtitle {
        font-size: 0.95rem;
        margin-bottom: 20px;
        padding: 0 5px;
    }
    
    .hero-cta {
        flex-direction: column;
        width: 100%;
        gap: 12px;
        padding: 0 15px;
    }
    
    .cta-button, .cta-outline {
        width: 100%;
        padding: 12px 15px;
        min-width: 100%;
        font-size: 14px;
        height: 46px;
    }
    
    .menu-toggle {
        margin-right: 10px;
    }
    
    .contact-footer {
        padding: 20px 10px;
    }
    
    .company-logo {
        max-width: 90px;
    }
    
    .company-text {
        font-size: 13px;
    }
    
    .company-text p {
        margin: 3px 0;
    }
    
    .contact-links {
        flex-direction: column;
        gap: 10px;
    }
    
    .contact-link {
        width: 100%;
        justify-content: center;
    }
    
    .copyright-footer {
        margin-top: 15px;
        padding-top: 10px;
    }
}