h1 {
    font-size: 28px;
    font-weight: bold;
    color: #8FC43E;
    margin: 10px 0;
}
p {
    font-size: 16px;
}
.image-background{
    background: #fff;
    padding: 20px 0px 20px 0px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 26px;
}

/* 白いパネル背景 */
.button-panel {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) translateY(12px);
    width: 100%;
    background: #fff;
    padding: 15px;
    box-sizing: border-box;
    box-shadow: 0 -4px 16px rgba(0,0,0,.12);
    z-index: 999;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;                 /* ← 既定は非表示 */
    pointer-events: none;
    transition: opacity .4s ease, transform .4s ease;
}
.button-panel.is-visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
}
.follow_btn {
    display: inline-block;
    text-decoration: none;
    width: 280px;
    background-color: #8FC43E;
    color: white;
    border: 2px solid transparent;
    border-radius: 80px;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
    padding: 15px;
    text-align: center;
    pointer-events: auto;
}
.follow_btn:hover {
    background-color: #fff;
    color: #7ab635;
    border-color: #7ab635;
 }