body {
    font-family: "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
    background: #fdfdfd;
    margin: 0;
    padding: 20px;
    color: #333;
}
.container {
    max-width: 800px;
    margin: auto;
    padding: 20px;
    background: #ffffff;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
h1 {
    color: #2c3e50;
    border-bottom: 2px solid #ddd;
    padding-bottom: 5px;
}
h2 {
    color: #16a085;
    margin-top: 30px;
}
ul {
    list-style-type: disc;
    margin-left: 20px;
}
strong {
    color: #e67e22;
}