* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

header {
    background-color: #333;
    color: #fff;
    padding: 1rem 0;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.logo h1 {
    font-size: 1.8rem;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
}

.hero {
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://trae-api-cn.mchost.guru/api/ide/v1/text_to_image?prompt=modern%20vehicle%20management%20app%20interface%20with%20dashboard%20and%20charts&image_size=landscape_16_9');
    background-size: cover;
    background-position: center;
    color: #fff;
    padding: 6rem 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.btn {
    display: inline-block;
    background-color: #4CAF50;
    color: #fff;
    padding: 0.8rem 1.5rem;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.btn:hover {
    background-color: #45a049;
}

.features-preview {
    padding: 4rem 0;
    background-color: #f4f4f4;
}

.features-preview h3 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2rem;
}

.feature-cards {
    display: flex;
    justify-content: space-around;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.feature-card {
    background-color: #fff;
    padding: 2rem;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    flex: 1;
    margin: 0 1rem;
}

.feature-card h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.section {
    margin: 4rem 0;
}

.section h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: #333;
}

.section h3 {
    font-size: 1.5rem;
    margin: 1.5rem 0 1rem;
    color: #555;
}

.section p {
    margin-bottom: 1rem;
}

ul, ol {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
}

li {
    margin-bottom: 0.5rem;
}

.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.support-item {
    background-color: #f9f9f9;
    padding: 1.5rem;
    border-radius: 5px;
    border-left: 4px solid #4CAF50;
}

.support-item h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.contact-form {
    max-width: 600px;
    margin: 2rem 0;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

footer {
    background-color: #333;
    color: #fff;
    padding: 2rem 0;
    margin-top: 4rem;
}

.footer-content {
    display: flex;
    justify-content: space-around;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-section {
    flex: 1;
}

.footer-section h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
    margin-left: 0;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #ddd;
    text-decoration: none;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #555;
    margin-top: 2rem;
}

@media (max-width: 768px) {
    nav {
        flex-direction: column;
        padding: 1rem;
    }
    
    .nav-links {
        margin-top: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav-links li {
        margin: 0.5rem;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .feature-cards {
        flex-direction: column;
        padding: 0 1rem;
    }
    
    .feature-card {
        margin: 1rem 0;
    }
    
    .footer-content {
        flex-direction: column;
        padding: 0 1rem;
    }
    
    .footer-section {
        margin-bottom: 2rem;
    }
}