body {
    background: #f7f7f7;
    font-family: 'Segoe UI', Arial, sans-serif;
    margin: 0;
    padding: 0;
}
.container {
    max-width: 700px;
    margin: 40px auto;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    padding: 32px 24px;
}
h1 {
    color: #2c3e50;
    font-size: 2.2em;
    margin-bottom: 16px;
}
h2 {
    color: #34495e;
    font-size: 1.3em;
    margin-top: 32px;
    margin-bottom: 10px;
}
p, ul {
    color: #555;
    font-size: 1em;
    line-height: 1.7;
}
ul {
    margin-left: 20px;
}
@media (max-width: 800px) {
    .container {
        max-width: 98vw;
        padding: 16px 8px;
    }
    h1 {
        font-size: 1.5em;
    }
    h2 {
        font-size: 1.1em;
    }
}