.active_member_sw_button {
    display: flex;
    justify-content: center;
    gap: 20px;
    max-width: 900px;
    margin: 20px 5px 10px;
}

.active_member_sw_button_item {
    position: relative;
    overflow: hidden;
    flex: 1;
    height: 60px;
    max-width: 300px;
    text-align: center;
    line-height: 60px;
    font-size: 18px;
    border: none;
    border-radius: 12px;
    background-color: #e0f7e9;
    color: #333;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: background-color 0.3s ease, color 0.3s ease, box-shadow 0.2s ease;
    user-select: none;
}

.active_member_sw_button_item:hover {
    box-shadow: 0 6px 10px rgba(0, 0, 0, 0.15);
}

.active_member_sw_button_item.active {
    background-color: #4CAF50;
    color: white;
    font-weight: bold;
}

.active_member_sw_button_item::after {
    content: "";
    position: absolute;
    width: 80px; /* 小さめに */
    height: 80px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    background: rgba(255, 255, 255, 0.3); /* 色を薄く */
    border-radius: 50%;
    opacity: 0;
    pointer-events: none;
    transition: transform 0.4s ease-out, opacity 0.6s ease-out;
}

.active_member_sw_button_item:active::after {
    transform: translate(-50%, -50%) scale(2);
    opacity: 1;
    transition: 0s;
}