/* 响应式设计 */

/* 平板设备 */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5em;
    }
    
    .hero p {
        font-size: 1em;
    }
    
    .section-title {
        font-size: 2em;
    }
    
    .nav-links {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: rgba(0, 0, 0, 0.95);
        flex-direction: column;
        padding: 20px;
        gap: 10px;
        transform: translateY(-100%);
        opacity: 0;
        transition: all 0.3s ease;
        display: none;
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        display: flex;
    }
    
    .menu-toggle {
        display: block;
        width: 30px;
        height: 20px;
        position: relative;
        cursor: pointer;
    }
    
    .menu-toggle span {
        display: block;
        position: absolute;
        height: 3px;
        width: 100%;
        background: #fff;
        border-radius: 3px;
        transition: all 0.3s ease;
    }
    
    .menu-toggle span:nth-child(1) { top: 0; }
    .menu-toggle span:nth-child(2) { top: 8px; }
    .menu-toggle span:nth-child(3) { top: 16px; }
    
    .hero {
        height: 400px;
    }
    
    .features,
    .server-list,
    .download-options {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        padding: 20px;
    }
}

/* 手机设备 */
@media (max-width: 480px) {
    .hero h1 {
        font-size: 2em;
    }
    
    .hero {
        height: 350px;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .screenshots {
        grid-template-columns: 1fr;
    }
}

/* 大屏幕设备 */
@media (min-width: 1200px) {
    .container {
        max-width: 1400px;
    }
}

/* 打印样式 */
@media print {
    .header,
    .footer,
    .btn {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .container {
        max-width: 100%;
        padding: 0;
    }
    
    a {
        color: black;
        text-decoration: underline;
    }
}