/* 响应式设计 */

/* 平板设备 (768px - 1024px) */
@media screen and (max-width: 1024px) {
    .container {
        padding: 0 20px;
    }
    
    .nav-container {
        padding: 0 20px;
    }
    
    .hero-container {
        padding: 0 20px;
    }
    
    .cooperation-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .process-steps {
        flex-direction: column;
        gap: 32px;
    }
    
    .process-arrow {
        transform: rotate(90deg);
    }
    
    .process-step {
        padding: 16px;
    }
}

/* 移动设备 (max-width: 768px) */
@media screen and (max-width: 768px) {
    /* 导航栏移动端适配 */
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        gap: 16px;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-toggle {
        display: block;
    }
    
    /* Hero区域移动端适配 */
    .hero {
        padding: 100px 0 60px;
        min-height: auto;
    }
    
    .hero-title {
        font-size: 20px;
        margin-bottom: 12px;
    }
    
    .hero-subtitle {
        font-size: 14px;
        margin-bottom: 24px;
    }
    
    .cta-button {
        width: 100%;
        max-width: 280px;
        height: 44px;
        font-size: 14px;
    }
    
    /* 合作模式移动端适配 */
    .cooperation {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 18px;
        margin-bottom: 32px;
    }
    
    .cooperation-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-top: 32px;
    }
    
    .cooperation-item {
        padding: 24px 20px;
    }
    
    .cooperation-icon {
        margin-bottom: 12px;
    }
    
    .cooperation-icon svg {
        width: 40px;
        height: 40px;
    }
    
    /* 价值流程移动端适配 */
    .process {
        padding: 60px 0;
    }
    
    .process-steps {
        gap: 24px;
    }
    
    .step-number {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }
    
    /* 合作优势移动端适配 */
    .advantages {
        padding: 60px 0;
    }
    
    .advantages-grid {
        gap: 24px;
    }
    
    .advantage-icon svg {
        width: 40px;
        height: 40px;
    }
    
    /* FAQ移动端适配 */
    .faq {
        padding: 60px 0;
    }
    
    .faq-question {
        padding: 16px 20px;
    }
    
    .faq-answer.active {
        padding: 16px 20px;
    }
    
    .faq-question h3 {
        font-size: 14px;
    }
    
    /* 联系我们移动端适配 */
    .contact {
        padding: 60px 0;
    }
    
    .contact-email {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }
    
    .email-link {
        font-size: 16px;
        padding: 10px 20px;
    }
    
    .copy-button {
        margin-left: 0;
        width: 100%;
        max-width: 200px;
    }
    
    /* 页脚移动端适配 */
    .footer {
        padding: 30px 0;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
    
    .footer-links {
        justify-content: center;
        gap: 16px;
    }
}

/* 小屏移动设备 (max-width: 480px) */
@media screen and (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .nav-container {
        padding: 0 16px;
    }
    
    .hero-container {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 18px;
    }
    
    .section-title {
        font-size: 16px;
    }
    
    .cooperation-item {
        padding: 20px 16px;
    }
    
    .process-step {
        padding: 12px;
    }
    
    .step-number {
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
    
    .faq-question {
        padding: 14px 16px;
    }
    
    .faq-answer.active {
        padding: 14px 16px;
    }
}

/* 高分辨率屏幕适配 */
@media screen and (min-width: 1920px) {
    .container {
        max-width: 1400px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .cooperation-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* 横向模式适配 */
@media screen and (max-height: 500px) and (orientation: landscape) {
    .hero {
        padding: 80px 0 40px;
        min-height: auto;
    }
    
    .cta-button {
        height: 40px;
        font-size: 14px;
    }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    .cta-button:active {
        background-color: #1D4ED8;
    }
    
    .copy-button:active {
        background-color: #1E40AF;
    }
    
    .nav-link:active {
        color: var(--accent-color);
    }
    
    .email-link:active {
        background-color: rgba(255, 255, 255, 0.2);
    }
}

/* 打印样式 */
@media print {
    .navbar {
        position: static;
        box-shadow: none;
    }
    
    .hero {
        padding: 40px 0;
        min-height: auto;
        background: none;
        color: black;
    }
    
    .cta-button,
    .copy-button {
        display: none;
    }
    
    .faq-answer {
        max-height: none !important;
        padding: 16px 24px !important;
    }
}