:root {
    --primary-color: #007AFF;
    --text-color: #333;
    --bg-color: #f5f5f7;
    --card-bg: #ffffff;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    margin: 0;
    padding: 0;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    padding: 40px 0;
}

.logo {
    width: 120px;
    height: 120px;
    border-radius: 24px;
    margin-bottom: 20px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.content-card {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    margin-bottom: 40px;
}

h2 {
    border-bottom: 1px solid #eee;
    padding-bottom: 10px;
    margin-top: 30px;
}

footer {
    text-align: center;
    padding: 20px;
    color: #888;
    font-size: 0.9rem;
}

a {
    color: var(--primary-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.nav-links {
    margin-top: 20px;
}

.nav-links a {
    margin: 0 10px;
    font-weight: 500;
}