.seo-main {
    background:
        radial-gradient(circle at 8% 8%, rgba(96, 165, 250, 0.16) 0, transparent 28rem),
        radial-gradient(circle at 92% 12%, rgba(251, 191, 36, 0.16) 0, transparent 26rem),
        linear-gradient(180deg, #f9fbff 0%, #f4f7fc 100%);
}

.seo-hero {
    padding: 58px 0 54px;
    border-bottom: 1px solid rgba(220, 227, 238, 0.9);
}

.seo-hero__inner {
    max-width: 980px;
}

.seo-breadcrumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 28px;
    color: var(--text-muted);
    font-size: 14px;
}

.seo-breadcrumbs a {
    color: #1d4ed8;
    text-decoration: none;
}

.seo-breadcrumbs a:hover {
    text-decoration: underline;
}

.seo-hero h1 {
    max-width: 900px;
    font-size: clamp(38px, 5vw, 62px);
}

.seo-lead {
    max-width: 900px;
    margin: 24px 0 0;
    color: #475569;
    font-size: 20px;
    line-height: 1.7;
}

.seo-updated {
    margin: 22px 0 0;
    color: var(--text-muted);
    font-size: 13px;
}

.seo-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 330px;
    gap: 54px;
    align-items: start;
    padding-top: 58px;
    padding-bottom: 76px;
}

.seo-content {
    min-width: 0;
}

.seo-section {
    margin-bottom: 46px;
    padding: 34px;
    border: 1px solid rgba(220, 227, 238, 0.95);
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 18px 48px rgba(15, 23, 42, 0.06);
}

.seo-section h2 {
    margin: 0 0 18px;
    color: #172554;
    font-size: clamp(27px, 3vw, 36px);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.seo-section p,
.seo-section li {
    color: #475569;
    font-size: 17px;
    line-height: 1.75;
}

.seo-section p {
    margin: 0 0 18px;
}

.seo-section p:last-child {
    margin-bottom: 0;
}

.seo-section ul {
    margin: 20px 0 0;
    padding-left: 24px;
}

.seo-section li + li {
    margin-top: 10px;
}

.seo-sidebar {
    position: sticky;
    top: 28px;
}

.seo-cta {
    padding: 28px;
    border: 1px solid rgba(245, 158, 11, 0.28);
    border-radius: 22px;
    background: linear-gradient(180deg, rgba(255, 251, 235, 0.98), rgba(255, 255, 255, 0.98));
    box-shadow: 0 22px 56px rgba(15, 23, 42, 0.09);
}

.seo-cta h2 {
    margin: 10px 0 14px;
    color: #172554;
    font-size: 28px;
    line-height: 1.2;
}

.seo-cta p {
    margin: 0 0 20px;
    color: #64748b;
    line-height: 1.65;
}

.seo-cta__note {
    margin: 16px 0 0 !important;
    font-size: 13px;
}

.seo-faq .section-kicker {
    display: block;
    margin-bottom: 10px;
}

.seo-faq__list {
    display: grid;
    gap: 12px;
}

.seo-faq__item {
    border: 1px solid #dce3ee;
    border-radius: 14px;
    background: #fff;
}

.seo-faq__item summary {
    padding: 18px 20px;
    cursor: pointer;
    color: #1e293b;
    font-weight: 700;
}

.seo-faq__item p {
    margin: 0;
    padding: 0 20px 20px;
    font-size: 16px;
}

@media (max-width: 980px) {
    .seo-layout {
        grid-template-columns: 1fr;
    }

    .seo-sidebar {
        position: static;
    }
}

.seo-related {
    margin-top: 32px;
}

.seo-related__list {
    display: grid;
    gap: 14px;
    margin-top: 20px;
}

.seo-related__item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 20px 22px;
    border: 1px solid rgba(245, 158, 11, 0.24);
    border-radius: 18px;
    background:
        linear-gradient(
            135deg,
            rgba(255, 251, 235, 0.96) 0%,
            rgba(255, 255, 255, 0.98) 100%
        );
    color: inherit;
    text-decoration: none;
    box-shadow: 0 14px 32px rgba(15, 23, 42, 0.06);
    transition:
        transform 0.2s ease,
        border-color 0.2s ease,
        box-shadow 0.2s ease;
}

.seo-related__content {
    display: grid;
    gap: 7px;
    min-width: 0;
}

.seo-related__content strong {
    color: var(--text);
    font-size: 17px;
    line-height: 1.35;
}

.seo-related__content span {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.55;
}

.seo-related__item > svg {
    width: 21px;
    height: 21px;
    flex-shrink: 0;
    color: #b45309;
    stroke-width: 2;
    transition: transform 0.2s ease;
}

.seo-related__item:hover {
    transform: translateY(-2px);
    border-color: #f59e0b;
    box-shadow: 0 18px 38px rgba(245, 158, 11, 0.13);
}

.seo-related__item:hover > svg {
    transform: translateX(4px);
}

.seo-related__item:focus-visible {
    outline: 3px solid rgba(245, 158, 11, 0.24);
    outline-offset: 3px;
}

@media (max-width: 640px) {
    .seo-hero {
        padding: 38px 0 40px;
    }

    .seo-layout {
        gap: 28px;
        padding-top: 32px;
        padding-bottom: 48px;
    }

    .seo-section {
        margin-bottom: 24px;
        padding: 24px 20px;
        border-radius: 18px;
    }

    .seo-lead {
        font-size: 17px;
    }
    
    .seo-related__item {
        align-items: flex-start;
        padding: 18px;
    }

    .seo-related__item > svg {
        margin-top: 2px;
    }
}

.seo-article-image {
    margin: 32px 0 0;
    overflow: hidden;
    border: 1px solid rgba(148, 163, 184, 0.22);
    border-radius: 24px;
    background: #ffffff;
    box-shadow: 0 20px 50px rgba(15, 23, 42, 0.12);
}

.seo-article-image img {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}