.readmore-wrapper {
    position: relative;
    overflow: hidden;
}

.readmore-preview {
    position: relative;
    overflow: hidden;
    max-height: 150px; /* Điều chỉnh chiều cao ban đầu */
    transition: max-height 0.5s ease;
}

.readmore-wrapper.expanded .readmore-preview .gradient-overlay {
    opacity: 0; /* Ẩn gradient khi mở rộng */
}

.readmore-content {
    margin-top: 20px;
    display: none; /* Ẩn nội dung ban đầu */
}

.toggle-btn {
    display: block;
    margin: 20px auto 10px;
    padding: 10px 20px;
    font-size: 14px;
    text-align: center;
    transition: background-color 0.3s ease;
}