.product-intro-4 {
    background: transparent;   /* removes grey */
    padding: 0px 40px;        /* reduced top & bottom space */
    text-align: center;
}

.product-intro-content-4 {
    max-width: 750px;
    margin: 0 auto;
}

.product-intro-4 h2 {
    font-size: 32px;
    letter-spacing: 4px;
    margin-bottom: 20px;   /* reduced spacing */
}

.product-intro-4 p {
    font-size: 16px;
    line-height: 1.8;
    margin: 0 auto 30px auto;
}

.discover-link-4 {
    display: inline-block;
    position: relative;
    padding: 8px 20px;
    text-decoration: none;
    color: black;
}

.discover-link-4::after {
    content: "";
    position: absolute;
    width: 60px;
    height: 1px;
    background: black;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
}
.discover-link-4:hover {
    background: black;
    color: white;
    margin: auto;
}

@media (max-width: 768px) {
    .product-intro-4 {
        padding: 50px 20px;
    }

    .product-intro-4 h2 {
        font-size: 22px;
        margin-bottom: 20px;
    }

    .product-intro-4 p {
        font-size: 14px;
        margin-bottom: 25px;
    }
}