/* X投稿ボタン */
.x-share-button {
    position: relative;
    margin-bottom: 20px;
    text-align: right;
}

.x-share-btn {
    display: inline-block;
    background-color: #000000;
    color: #ffffff;
    font-size: 14px;
    font-weight: bold;
    padding: 8px 16px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.3s ease;
    font-family: 'Hiragino Kaku Gothic Pro', 'メイリオ', sans-serif;
}

.x-share-btn:hover {
    background-color: #333333;
    color: #ffffff;
}

.x-share-btn:active {
    background-color: #555555;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .x-share-button {
        text-align: center;
        margin-bottom: 15px;
    }
    
    .x-share-btn {
        font-size: 12px;
        padding: 6px 12px;
    }
}