/* Mobile Responsive Styles - Enhanced */

/* Base Mobile Styles */
@media (max-width: 768px) {
    /* Global adjustments */
    body {
        font-size: 14px;
        line-height: 1.6;
        overflow-x: hidden; /* 防止水平滚动 */
    }
    
    .container {
        width: 95%;
        padding: 0 15px;
        max-width: 100%; /* 确保不超出屏幕 */
        box-sizing: border-box;
    }
    
    /* Typography adjustments */
    h1 { font-size: 2rem !important; line-height: 1.3 !important; }
    h2 { font-size: 1.6rem !important; line-height: 1.3 !important; }
    h3 { font-size: 1.3rem !important; line-height: 1.4 !important; }
    
    /* Language switcher mobile optimization */
    .language-nav {
        padding: 6px 12px;
        border-radius: 0 0 0 10px;
    }
    
    .language-switcher {
        gap: 4px;
    }
    
    .lang-btn {
        padding: 5px 10px;
        font-size: 12px;
        border-radius: 6px;
    }
    
    /* Header mobile optimization */
    header {
        padding: 0.8rem 0;
    }
    
    header .container {
        flex-direction: column;
        gap: 15px;
    }
    
    .logo {
        font-size: 1.5rem;
        text-align: center;
    }
    
    header nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }
    
    header nav ul li {
        margin-left: 0;
    }
    
    header nav ul li a {
        font-size: 14px;
        padding: 6px 12px;
        border-radius: 4px;
        background-color: rgba(255, 255, 255, 0.1);
    }
    
    /* Hero section mobile optimization - Enhanced */
    .hero-section {
        padding: 40px 0 50px 0 !important;
        text-align: center;
        background-attachment: scroll !important; /* 移动端禁用fixed避免闪动 */
        background-size: cover !important;
        background-position: center center !important;
    }
    
    /* 移动端禁用复杂动画避免闪动 */
    .hero-section::before {
        animation: none !important;
        opacity: 0.1 !important;
    }
    
    /* Hero container优化 */
    .hero-section .container {
        padding: 15px !important;
        border-radius: 8px !important;
    }
    
    /* Hero标题优化 */
    .hero-section h1 {
        font-size: 1.8rem !important;
        margin-bottom: 0.8rem !important;
        line-height: 1.3 !important;
        padding: 0 5px !important;
    }
    
    .hero-section h2 {
        font-size: 1.4rem !important;
        margin-bottom: 15px !important;
        margin-top: 15px !important;
        line-height: 1.4 !important;
        padding: 0 5px !important;
    }
    
    /* Hero场景卡片容器优化 */
    .hero-section div[style*="display: flex"] {
        flex-direction: column !important;
        gap: 15px !important;
        margin: 20px 0 !important;
    }
    
    /* Hero场景卡片优化 */
    .hero-section div[style*="min-width: 280px"] {
        min-width: auto !important;
        max-width: 100% !important;
        padding: 15px !important;
        margin: 0 !important;
    }
    
    /* Hero场景卡片内文字优化 */
    .hero-section div[style*="min-width: 280px"] p:first-child {
        font-size: 1.1rem !important;
    }
    
    .hero-section div[style*="min-width: 280px"] p:last-child {
        font-size: 0.95rem !important;
    }
    
    /* Hero底部总结框优化 */
    .hero-section div[style*="border-top: 2px"] {
        padding: 15px 10px !important;
        margin-top: 20px !important;
    }
    
    .hero-section div[style*="border-top: 2px"] p {
        font-size: 1.05rem !important;
        line-height: 1.6 !important;
    }
    
    .hero-section .subtitle {
        font-size: 1.1rem;
        margin-bottom: 2rem;
        padding: 0 10px;
    }
    
    .hero-section .subtitle .mobile-break {
        display: block;
    }
    
    /* Button mobile optimization */
    .btn {
        padding: 12px 25px;
        font-size: 1rem;
        width: 100%;
        max-width: 280px;
        margin: 0 auto;
        display: block;
        text-align: center;
    }
    
    .btn + .btn {
        margin-top: 15px;
    }
    
    /* Section spacing */
    .about-section, .products-section, .cases-section, .process-section, .contact-section {
        padding: 50px 0;
    }
    
    section h2 {
        font-size: 2rem;
        margin-bottom: 40px;
    }
    
    /* About section mobile */
    .about-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .about-text, .core-advantages {
        min-width: auto;
    }
    
    /* Advantage grid mobile */
    .advantage-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .advantage-item {
        padding: 20px;
        text-align: center;
    }
    
    .advantage-item i {
        font-size: 2.2rem;
        margin-bottom: 12px;
    }
    
    .advantage-item h4 {
        font-size: 1.1rem;
        margin-bottom: 8px;
    }
    
    .advantage-item p {
        font-size: 0.9rem;
    }
    
    /* Products section mobile - Enhanced */
    .product-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .product-item {
        padding: 20px !important;
        margin-bottom: 15px;
    }
    
    .product-item .product-icon {
        font-size: 2.2rem !important;
        margin-bottom: 12px;
    }
    
    .product-item h3 {
        font-size: 1.25rem !important;
        margin-bottom: 12px !important;
        line-height: 1.4 !important;
    }
    
    .product-item h4 {
        font-size: 1.05rem !important;
        margin-top: 15px !important;
        margin-bottom: 10px !important;
        color: #00AFFF;
    }
    
    .product-item ul {
        margin: 10px 0;
        padding-left: 20px;
    }
    
    .product-item ul li {
        font-size: 0.9rem !important;
        margin-bottom: 8px !important;
        line-height: 1.5 !important;
    }
    
    .product-item ul li i {
        margin-right: 6px;
        font-size: 0.85rem;
    }
    
    .product-item p {
        font-size: 0.9rem !important;
        line-height: 1.6 !important;
        margin: 8px 0 !important;
    }
    
    /* Cases section mobile - Enhanced */
    .case-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-top: 25px;
    }
    
    .case-item, .sales-case, .enterprise-case {
        padding: 25px 20px !important;
        height: auto !important; /* 自动高度更适合移动端 */
        min-height: 320px;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        margin-bottom: 20px !important;
    }
    
    .case-icon {
        font-size: 2.2rem !important;
        margin-bottom: 12px;
    }
    
    .case-icon i {
        display: block;
    }
    
    .case-content {
        padding: 10px 15px !important;
        line-height: 1.6 !important;
    }
    
    .case-content h3 {
        font-size: 1.25rem !important;
        margin-bottom: 12px !important;
        line-height: 1.4 !important;
    }
    
    .case-content p {
        font-size: 0.9rem !important;
        margin: 8px 0 !important;
        line-height: 1.6 !important;
    }
    
    .case-content p strong {
        display: block;
        margin-bottom: 4px;
        color: #00AFFF;
    }
    
    /* Contact section mobile - Enhanced */
    .contact-section {
        padding: 45px 0 !important;
    }
    
    .contact-grid {
        flex-direction: column;
        gap: 25px;
    }
    
    .contact-form-container {
        min-width: auto;
        width: 100%;
        padding: 20px !important;
        box-sizing: border-box;
    }
    
    .contact-details {
        min-width: auto;
        width: 100%;
        padding: 20px 15px !important;
        padding-left: 0 !important;
        margin-top: 0;
        text-align: center;
        box-sizing: border-box;
    }
    
    .contact-details p {
        justify-content: center;
        font-size: 0.95rem !important;
        margin-bottom: 10px !important;
        line-height: 1.6;
    }
    
    .contact-details p i {
        margin-right: 8px;
        font-size: 1rem;
    }
    
    .contact-details hr {
        margin: 15px 0;
        opacity: 0.3;
    }
    
    #contact-form .form-group {
        margin-bottom: 16px;
    }
    
    #contact-form label {
        font-size: 0.95rem !important;
        margin-bottom: 6px;
        display: block;
    }
    
    #contact-form input[type="text"],
    #contact-form textarea {
        padding: 10px 12px !important;
        font-size: 0.95rem !important;
        width: 100%;
        box-sizing: border-box;
        border-radius: 6px;
    }
    
    #contact-form textarea {
        min-height: 100px;
        resize: vertical;
    }
    
    #contact-form button {
        width: 100%;
        padding: 12px !important;
        font-size: 1rem !important;
        margin-top: 10px;
    }
}

/* Extra small devices (phones, 480px and down) - Enhanced */
@media (max-width: 480px) {
    .container {
        width: 98%;
        padding: 0 10px;
    }
    
    /* Typography for very small screens */
    h1 { font-size: 1.6rem !important; line-height: 1.3 !important; }
    h2 { font-size: 1.4rem !important; line-height: 1.3 !important; }
    h3 { font-size: 1.15rem !important; line-height: 1.4 !important; }
    
    /* Language switcher for very small screens */
    .language-nav {
        padding: 4px 8px;
    }
    
    .lang-btn {
        padding: 4px 8px;
        font-size: 11px;
    }
    
    /* Hero section for very small screens */
    .hero-section {
        padding: 30px 0 40px 0 !important;
    }
    
    .hero-section .container {
        padding: 12px !important;
    }
    
    .hero-section h1 {
        font-size: 1.5rem !important;
        line-height: 1.2 !important;
        margin-bottom: 0.6rem !important;
    }
    
    .hero-section h2 {
        font-size: 1.2rem !important;
        margin-bottom: 12px !important;
        margin-top: 12px !important;
    }
    
    .hero-section div[style*="min-width: 280px"] {
        padding: 12px !important;
    }
    
    .hero-section div[style*="min-width: 280px"] p:first-child {
        font-size: 1rem !important;
    }
    
    .hero-section div[style*="min-width: 280px"] p:last-child {
        font-size: 0.85rem !important;
    }
    
    .hero-section div[style*="border-top: 2px"] p {
        font-size: 0.95rem !important;
    }
    
    .hero-section .subtitle {
        font-size: 1rem;
        margin-bottom: 1.5rem;
        padding: 0 5px;
    }
    
    /* Button for very small screens */
    .btn {
        padding: 10px 18px;
        font-size: 0.9rem;
        max-width: 250px;
    }
    
    /* Section spacing for very small screens */
    .about-section, .products-section, .cases-section, .process-section, .contact-section {
        padding: 35px 0 !important;
    }
    
    section h2 {
        font-size: 1.5rem !important;
        margin-bottom: 25px !important;
    }
    
    /* Cards padding for very small screens */
    .advantage-item,
    .product-item {
        padding: 18px 15px !important;
        margin-bottom: 12px;
    }
    
    .case-item, .sales-case, .enterprise-case {
        padding: 20px 15px !important;
        min-height: 280px;
    }
    
    .contact-form-container {
        padding: 18px !important;
    }
    
    /* Icon sizes for very small screens */
    .advantage-item i,
    .case-icon {
        font-size: 1.8rem !important;
    }
    
    .product-item .product-icon {
        font-size: 2rem !important;
    }
    
    /* Text sizes for very small screens */
    .product-item ul li,
    .case-content p,
    .advantage-item p {
        font-size: 0.85rem !important;
    }
    
    .case-content h3 {
        font-size: 1.15rem !important;
    }
    
    .product-item h3 {
        font-size: 1.15rem !important;
    }
    
    .product-item h4 {
        font-size: 1rem !important;
    }
    
    .contact-details p {
        font-size: 0.85rem !important;
    }
    
    /* About content optimization */
    .about-text p,
    .core-advantages p {
        font-size: 0.9rem !important;
    }
}

/* AI Chat Mobile Optimization - Enhanced */
@media (max-width: 768px) {
    /* AI聊天图标优化 */
    .ai-chat-icon {
        width: 60px !important;
        height: 60px !important;
        bottom: 15px !important;
        right: 15px !important;
        font-size: 20px !important;
        transform: none !important;
        top: auto !important;
    }
    
    .ai-chat-icon img {
        width: 45px !important;
        height: 45px !important;
    }
    
    /* AI聊天窗口优化 */
    .ai-chat-window {
        width: 95% !important;
        height: 75% !important;
        max-height: 600px !important;
        bottom: 10px !important;
        right: 2.5% !important;
        left: 2.5% !important;
        top: auto !important;
        transform: none !important;
        border-radius: 12px !important;
    }
    
    /* 聊天头部优化 */
    .ai-chat-window > div:first-child > div:first-child {
        padding: 12px 15px !important;
        font-size: 14px !important;
    }
    
    .ai-chat-window button {
        font-size: 13px !important;
        padding: 5px 10px !important;
    }
    
    /* 聊天消息区优化 */
    .ai-chat-window > div:first-child > div:nth-child(2) {
        padding: 12px !important;
    }
    
    /* 消息样式优化 */
    .ai-chat-window .message,
    .ai-chat-window div[style*="background: #2c2c2c"],
    .ai-chat-window div[style*="background: #00afff"] {
        margin-bottom: 10px !important;
        padding: 10px 12px !important;
        font-size: 0.9rem !important;
        line-height: 1.5 !important;
        border-radius: 10px !important;
        max-width: 85% !important;
    }
    
    /* 输入区优化 */
    .ai-chat-window > div:first-child > div:last-child {
        padding: 12px !important;
        gap: 8px !important;
    }
    
    .ai-chat-window input[type="text"] {
        font-size: 14px !important;
        padding: 10px 12px !important;
        border-radius: 8px !important;
    }
    
    .ai-chat-window button[onclick*="sendMessage"] {
        padding: 10px 16px !important;
        font-size: 14px !important;
        border-radius: 8px !important;
        white-space: nowrap !important;
    }
    
    /* 打字指示器优化 */
    .ai-chat-window div[id="typing-indicator"] {
        padding: 8px 12px !important;
        font-size: 0.85rem !important;
    }
}

@media (max-width: 480px) {
    .ai-chat-icon {
        width: 45px !important;
        height: 45px !important;
        bottom: 15px !important;
        right: 15px !important;
        font-size: 18px !important;
    }
    
    .ai-chat-window {
        width: 95% !important;
        height: 75% !important;
        bottom: 15px !important;
        right: 2.5% !important;
        border-radius: 10px !important;
    }
    
    .ai-chat-header {
        padding: 10px 12px !important;
        font-size: 13px !important;
    }
    
    .ai-chat-messages {
        padding: 8px !important;
        font-size: 12px !important;
    }
    
    .ai-chat-input-area {
        padding: 8px !important;
    }
    
    .ai-chat-input {
        font-size: 13px !important;
        padding: 6px 10px !important;
    }
    
    .ai-chat-send {
        padding: 6px 10px !important;
        font-size: 12px !important;
    }
    
    .message {
        margin-bottom: 6px !important;
        padding: 6px 8px !important;
        font-size: 12px !important;
        border-radius: 6px !important;
    }
}

/* Feature List Mobile Optimization */
@media (max-width: 768px) {
    .feature-list {
        margin-top: 15px;
    }
    
    .feature-list p {
        font-size: 1rem;
        margin: 12px 0;
        padding: 0 10px;
    }
}

@media (max-width: 480px) {
    .feature-list p {
        font-size: 0.9rem;
        margin: 10px 0;
        padding: 0 5px;
    }
}

/* Form Mobile Optimization */
@media (max-width: 768px) {
    .honeypot {
        display: none !important;
    }
    
    #contact-form button {
        width: 100%;
        padding: 12px;
        font-size: 1rem;
        margin-top: 10px;
    }
}

@media (max-width: 480px) {
    #contact-form button {
        padding: 10px;
        font-size: 0.95rem;
    }
}

/* Landscape orientation optimization for mobile */
@media (max-width: 768px) and (orientation: landscape) {
    .hero-section {
        padding: 60px 0;
    }
    
    .hero-section h1 {
        font-size: 2.2rem;
    }
    
    .hero-section .subtitle {
        font-size: 1.1rem;
        margin-bottom: 2rem;
    }
    
    .ai-chat-window {
        height: 80% !important;
    }
    
    .about-section, .products-section, .cases-section, .process-section, .contact-section {
        padding: 40px 0;
    }
}

/* Touch-friendly improvements */
@media (max-width: 768px) {
    /* Increase touch targets */
    a, button, .btn, .lang-btn {
        min-height: 44px;
        min-width: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }
    
    /* Improve spacing for touch */
    header nav ul li {
        margin: 5px;
    }
    
    /* Better hover states for touch devices */
    .advantage-item:hover,
    .product-item:hover,
    .case-item:hover {
        transform: none;
    }
    
    /* Disable complex animations on mobile for better performance */
    .advantage-item::after,
    .product-item::before,
    .case-item::before {
        display: none;
    }
    
    /* Simplify animations */
    * {
        animation-duration: 0.2s !important;
        transition-duration: 0.2s !important;
    }
}

/* Print styles */
@media print {
    .language-nav,
    .ai-chat-icon,
    .ai-chat-window {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .hero-section {
        background: none !important;
        color: black !important;
    }
}