#gift_list.collapsed {
    position: relative;
}

#gift_list.collapsed::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 120px;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0) 0%, white 100%);
    pointer-events: none; /* クリックを邪魔しないように */
    border-bottom-left-radius: 16px;
    border-bottom-right-radius: 16px;
}

.collapsed {
    max-height: 960px; /* 最初に見せる高さ */
    overflow: hidden;
    transition: max-height 2s ease;
}

.expanded {
    max-height: auto;
    transition: max-height 3s ease;
}

.toggle-button {
    cursor: pointer;
    margin-top: 16px;
    background-color: #f4cc25;
    border: none;
    padding: 10px 20px;
    font-weight: bold;
    font-size: 16px;
    border-radius: 8px;
    border: 2px solid #222;
}