* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

body {
    background: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

header {
    background: #fff;
    padding: 20px 40px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

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

.logo {
    font-size: 24px;
    font-weight: bold;
    color: #2c3e50;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    text-decoration: none;
    color: #666;
    transition: color 0.3s ease;
}

nav ul li a:hover,
nav ul li a.active {
    color: #2c3e50;
}

main {
    margin-top: 80px;
    min-height: calc(100vh - 140px);
}

.hero {
    text-align: center;
    padding: 100px 20px;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 48px;
    color: #2c3e50;
    margin-bottom: 20px;
}

.hero p {
    font-size: 20px;
    color: #666;
}

.content {
    max-width: 800px;
    margin: 40px auto;
    padding: 20px;
}

.content h1 {
    font-size: 36px;
    color: #2c3e50;
    margin-bottom: 20px;
}

.content h2 {
    font-size: 24px;
    color: #2c3e50;
    margin: 20px 0 10px;
}

.content p {
    margin-bottom: 15px;
}

.content a {
    color: #2c3e50;
    text-decoration: none;
}

.content a:hover {
    text-decoration: underline;
}

footer {
    text-align: center;
    padding: 20px;
    background: #fff;
    color: #666;
    border-top: 1px solid #eee;
}