/* 過去の総情散歩リンク */
#past-versions {
    position: fixed;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1000;
}

#past-versions h3 {
    margin: 0 0 10px 0;
    font-size: 14px;
    color: #333;
    font-weight: bold;
}

#past-versions ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

#past-versions li {
    margin: 5px 0;
}

#past-versions a {
    text-decoration: none;
    color: #667eea;
    font-size: 13px;
    transition: color 0.3s ease;
}

#past-versions a:hover {
    color: #764ba2;
    text-decoration: underline;
}

@media screen and (max-width: 1000px) {
    #past-versions {
        display: none;
    }
}