/* バナー本体（最初は透明＆少し下に置く） */
#follow-banner {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 300px;
    background: #ffffff;
    border: 1px solid #ccc;
    border-radius: 8px;
    padding: 10px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    z-index: 99999;

    opacity: 0;
    transform: translateY(30px);
    transition: transform 0.4s ease, opacity 0.4s ease;
}

/* スクロールで表示された時 */
#follow-banner.show {
    opacity: 1;
    transform: translateY(0px);
}

/* ▼ 閉じるボタンで ↓ に消える */
#follow-banner.closing {
    opacity: 0;
    transform: translateY(60px);
}

/* ▼ タブ状態 */
#follow-banner.closed {
    opacity: 1;
    transform: translateY(0);
    width: 300px;    /* ← タブ化しても同じ幅に */
    padding: 8px 10px;
    cursor: pointer;
}

/* ---- 子要素制御 ---- */
.fb-content {
    position: relative;
    display: block;
    
}

#follow-banner.closed .fb-content {
    display: none;
}
.fb-content img {
    display: block;
    margin: 0 auto;
    padding: 0;
}

.fb-close {
    position: absolute;
    top: 18px;
    right: 35px;

    background: rgba(0,0,0,0.6);
    color: white;
    width: 22px;
    height: 22px;

    display: flex;
    align-items: center;
    justify-content: center;

    border-radius: 50%;
    font-size: 14px;
    cursor: pointer;
    z-index: 10; /* 画像より上に */
}

#follow-banner.closed .fb-close {
    display: none; /* タブ時非表示 */
}

.fb-tab-text {
    display: none;
    padding: 10px;
    border-radius: 6px;
    font-weight: bold;
    text-align: center;
}

#follow-banner.closed .fb-tab-text {
    display: block;
}