/* 
* 响应式样式文件
* 专业教程与资源平台
*/

/* 大屏幕设备 (大于等于1200px) */
@media (min-width: 1200px) {
    .container {
        max-width: 1140px;
    }
}

/* 中等屏幕设备 (992px-1199px) */
@media (max-width: 1199px) {
    .container {
        max-width: 960px;
    }
    
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tutorial-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
}

/* 平板设备 (768px-991px) */
@media (max-width: 991px) {
    .container {
        max-width: 720px;
    }
    
    .site-header .container {
        flex-wrap: wrap;
    }
    
    
    
    .search-box {
        order: 3;
        width: 100%;
        margin-top: 15px;
    }
    
    .search-box input {
        width: 100%;
    }
    
    .tutorial-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .material-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tools-showcase {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .hero-slider {
        height: 400px;
    }
    
    .slide-content {
        max-width: 500px;
    }
    
    .slide-content h2 {
        font-size: 2rem;
    }
}

/* 手机设备 (小于768px) */
@media (max-width: 767px) {
    .container {
        max-width: 540px;
    }
    
    .site-header .container {
        justify-content: space-between;
    }
    
    .mobile-menu-toggle {
        display: block;
        order: 2;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .tutorial-grid {
        grid-template-columns: 1fr;
    }
    
    .material-grid {
        grid-template-columns: 1fr;
    }
    
    .material-card {
        flex-direction: column;
    }
    
    .material-image {
        width: 100%;
        height: 200px;
    }
    
  
    .hero-slider {
        height: 350px;
    }
    
    .slide-content {
        margin-left: 5%;
        max-width: 90%;
    }
    
    .slide-content h2 {
        font-size: 1.8rem;
    }
    
    .slide-content p {
        font-size: 1rem;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .newsletter-form input {
        border-radius: var(--border-radius);
        margin-bottom: 10px;
    }
    
    .newsletter-form button {
        border-radius: var(--border-radius);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

/* 小型手机设备 (小于576px) */
@media (max-width: 575px) {
    .hero-slider {
        height: 300px;
    }
    
    .slide-content h2 {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .prev-slide, .next-slide {
        width: 30px;
        height: 30px;
        font-size: 0.8rem;
    }
    
    .testimonial-content p {
        font-size: 1rem;
    }
}