/* 
 * 一城软件网站响应式样式表
 */

/* 大型屏幕 (大于1200px) */
@media (min-width: 1201px) {
    .container {
        max-width: 1170px;
    }
}

/* 中等屏幕 (小于1200px) */
@media (max-width: 1200px) {
    .container {
        max-width: 970px;
    }
    
    .hero-content {
        padding-right: 30px;
    }
    
    .company-name {
        font-size: 2.5rem;
    }
    
    .slogan {
        font-size: 1.6rem;
    }
}

/* 平板电脑 (小于992px) */
@media (max-width: 991px) {
    .container {
        max-width: 750px;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .hero-section {
        padding: 140px 0 60px;
    }
    
    .hero-section .container {
        flex-direction: column;
    }
    
    .hero-content {
        margin-bottom: 40px;
        padding-right: 0;
        text-align: center;
    }
    
    .cta-buttons {
        justify-content: center;
    }
    
    .hero-image {
        text-align: center;
    }
    
    .advantages-container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .calculator-container {
        grid-template-columns: 1fr;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        order: 2;
    }
    
    .contact-form-container {
        order: 1;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 移动设备 (小于768px) */
@media (max-width: 767px) {
    .section {
        padding: 50px 0;
    }
    
    #header .container {
        height: 70px;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    nav .main-menu {
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    
    nav.open .main-menu {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    nav .main-menu li {
        margin: 10px 0;
    }
    
    .language-switch {
        margin-right: 15px;
    }
    
    .hero-section {
        padding: 120px 0 50px;
    }
    
    .company-name {
        font-size: 2.2rem;
    }
    
    .slogan {
        font-size: 1.4rem;
    }
    
    .advantages-container {
        grid-template-columns: 1fr;
    }
    
    .team-container {
        grid-template-columns: 1fr;
    }
    
    .checkbox-group {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
    }
    
    .copyright {
        margin-bottom: 15px;
    }
}

/* 小型移动设备 (小于576px) */
@media (max-width: 575px) {
    .section-header h2 {
        font-size: 2rem;
    }
    
    .company-name {
        font-size: 1.8rem;
    }
    
    .slogan {
        font-size: 1.2rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 10px;
    }
    
    .cta-buttons .btn {
        width: 100%;
    }
    
    .process-step {
        margin-left: 20px;
    }
    
    .step-content {
        margin-left: 20px;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .newsletter-form input {
        border-radius: 4px;
        margin-bottom: 10px;
    }
    
    .newsletter-form button {
        width: 100%;
        border-radius: 4px;
        padding: 10px;
    }
    
    #back-to-top {
        width: 40px;
        height: 40px;
        bottom: 20px;
        right: 20px;
    }
}