/* 共通: シェアブロック (Xポスト + リンクコピー) */
.share-block {
    margin: 36px auto;
    padding: 22px 20px;
    background: #1f1f1f;
    border-left: 3px solid #9ACD32;
    border-radius: 4px;
    text-align: center;
    max-width: 640px;
    color: #ddd;
    font-family: "Helvetica Neue", Arial, sans-serif;
}
.share-block .share-title {
    font-size: 12px;
    color: #aaa;
    margin: 0 0 14px;
    letter-spacing: 3px;
}
.share-buttons {
    display: inline-flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}
.share-btn-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #000;
    color: #fff !important;
    text-decoration: none !important;
    padding: 10px 18px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: bold;
    transition: 0.15s;
    border: 1px solid #333;
    cursor: pointer;
    font-family: inherit;
    line-height: 1;
}
.share-btn-link:hover { background: #222; border-color: #555; transform: translateY(-1px); }
.share-btn-link:active { transform: translateY(0); }
.share-btn-link.copy { background: #2a2a2a; }
.share-btn-link.copy.copied { background: #2a7d2a; border-color: #4caf50; }
.share-btn-link svg { width: 14px; height: 14px; fill: currentColor; }

/* 共通: 公式Xフォローリンク (ヘッダー用とフッター用) */
.follow-x {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: #000;
    color: #fff !important;
    text-decoration: none !important;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: bold;
    border: 1px solid #555;
    transition: 0.15s;
    font-family: "Helvetica Neue", Arial, sans-serif;
    line-height: 1;
}
.follow-x:hover { background: #111; border-color: #888; }
.follow-x svg { width: 11px; height: 11px; fill: currentColor; }

/* フッター内に置く時は色とサイズを馴染ませる */
.footer-links .follow-x { padding: 3px 8px; font-size: 10px; }