.whitening-hero {
    position: relative;
    min-height: 450px;
    margin-bottom: 70px;
    background: #eaf9fd;
}

.hero-image-slot {
    position: absolute;
    inset: 0;
    background-position: center center;
    background-size: cover;
    background-repeat: no-repeat;
}

.hero-copy {
    position: relative;
    width: 520px;
    margin-left: auto;
    padding: 120px 80px 80px 0;
    box-sizing: border-box;
}

.hero-copy h2 {
    margin: 0 0 28px;
    color: #4b4b4b;
    font-size: 34px;
    font-weight: 400;
}

.hero-copy h2 strong,
.process-heading h2 strong {
    color: #25a8c8;
    font-weight: 400;
}

.hero-copy p {
    margin: 0;
    color: #555;
    font-size: 19px;
    line-height: 1.85;
}

.whitening-process {
    padding-top: 54px;
    border-top: 1px solid #e1e1e1;
}

.process-heading {
    display: flex;
    align-items: baseline;
    gap: 28px;
    margin-bottom: 42px;
}

.process-heading h2 {
    margin: 0;
    color: #4b4b4b;
    font-size: 34px;
    font-weight: 400;
}

.process-heading p {
    margin: 0;
    color: #777;
    font-size: 18px;
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

.process-card {
    display: grid;
    grid-template-columns: 140px 1fr;
    min-height: 134px;
}

.process-label {
    padding: 14px 14px;
    background: #27a8d1;
    color: #fff;
    box-sizing: border-box;
}

.process-label strong {
    display: block;
    margin-bottom: 14px;
    font-size: 25px;
    font-weight: 500;
}

.process-label span {
    display: block;
    font-size: 15px;
    line-height: 1.35;
}

.process-image {
    width: 139px;
    height: 134px;
    align-self: center;
    justify-self: center;
    background-position: center center;
    background-size: contain;
    background-repeat: no-repeat;
    background-color: #eef2f3;
}

@media (max-width: 768px) {

    .process-heading {
        display: block;
    }

    .hero-copy {
        width: auto;
        padding: 260px 24px 40px;
    }

    .process-grid {
        grid-template-columns: 1fr;
    }
}