.double-section {
    display: flex;
    gap: 70px;
}

.double-section__content {
    flex: auto;
}

.double-section__aside {
    position: sticky;
    top: calc(140px + 40px);  /* header + padding */
}

.blog-aside {
    display: flex;
    flex-direction: column;
    gap: 24px;
    width: 280px;
    flex: 0 0 280px;
    height: fit-content;
    overflow: auto;
}

.blog-aside .post__avtor {
    justify-content: flex-start;
}

.blog-hero {
    max-width: 850px;
    justify-content: flex-start;
    text-align: start;
}

.blog-hero .posts-item__date {
    justify-content: start;
}

.blog-main {
    padding: 40px 0;

}

.blog img {
    aspect-ratio: 850 / 390;
}

.blog-nav {
    padding: 24px 18px;
    border-radius: 16px;
    padding: 24px;
    background-color: #F5F5F6;
}

.blog-nav__title {
    font-weight: 500;
    font-style: Medium;
    font-size: 18px;
    line-height: 20px;
    letter-spacing: 0px;
    margin-bottom: 24px;
}

.blog-nav__list {
    display: flex;
    flex-direction: column;
    gap: 18px;
    list-style: decimal;
    list-style-position: inside;
}

.blog-nav__list li {
    font-weight: 400;
    font-size: 15px;
    line-height: 20px;
    letter-spacing: 0px;
}

.blog-nav__list li.active {
    color: #3F57FF;
    text-decoration: underline;
}

.card-service {
    text-align: center;
    width: 280;
    height: 426;
    border-radius: 16px;
    padding: 24px;
    background-color: #F5F5F6;
}

.card-service__icon {
    width: 40px;
    height: 40px;
    min-width: 40px;
    margin: 0 auto;
    margin-bottom: 24px;
}

.card-service__title {
    font-weight: 500;
    font-style: Medium;
    font-size: 18px;
    line-height: 20px;
    letter-spacing: 0px;
    margin-bottom: 24px;
}

.card-service__description {
    font-weight: 400;
    font-size: 15px;
    color: #01030B;
    line-height: 22px;
    letter-spacing: 0px;
    text-align: center;
    margin-bottom: 24px;
}

.card-service__button-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.card-service__button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 48px;
    border-radius: 360px;
    border: 1px solid #B8B9BD;
    transition: 0.3s ease;
}

.card-service__button:hover {
    background-color: #B8B9BD;
}

@media (max-width: 992px) {
    .double-section {
        flex-direction: column;
    }
    .double-section__aside {
        flex: 1;
        width: 100%;
    }
}