body {
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.6;
    color: #333333;
    background-color: #f4f4f9;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 40px auto;
    background: #ffffff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

h1 {
    color: #2c3e50;
    font-size: 2rem;
    margin-top: 0;
    margin-bottom: 20px;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 10px;
}

h2 {
    color: #34495e;
    font-size: 1.25rem;
    margin-top: 30px;
    margin-bottom: 10px;
}

p, li {
    font-size: 0.95rem;
    color: #555555;
}

ul {
    padding-left: 20px;
    margin-bottom: 20px;
}

li {
    margin-bottom: 8px;
}

a {
    color: #0066cc;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.back-btn {
    display: inline-block;
    margin-top: 30px;
    padding: 10px 18px;
    background-color: #2c3e50;
    color: #ffffff;
    border-radius: 4px;
    font-size: 0.9rem;
}

.back-btn:hover {
    background-color: #1a252f;
    text-decoration: none;
}