.japanese-header {
    background-color: #f5f3e7;
    /* 和紙風の柔らかいベージュ */
    color: #2e2e2e;
    padding: 20px;
    border-bottom: 3px solid #b44c00;
    /* 焦げ茶っぽい朱色ライン */
    font-family: "Hiragino Mincho ProN", "serif";
    text-align: center;
}

.japanese-header h1 {
    font-size: 28px;
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.japanese-header nav a {
    margin: 0 10px;
    color: #004b6b;
    /* 濃い青緑 */
    text-decoration: none;
    font-weight: bold;
}

.japanese-header nav a:hover {
    text-decoration: underline;
}