.article-page {
    padding: 34px 0 76px;
    background: linear-gradient(180deg, #f7f8fb 0%, #ffffff 100%);
}

.article-hero {
    max-width: 920px;
    margin-bottom: 42px;
}

.article-hero h1 {
    color: var(--color-primary);
    font-size: clamp(38px, 4.6vw, 62px);
    line-height: 1.02;
    font-weight: 850;
    letter-spacing: -0.01em;
}

.article-hero p {
    max-width: 760px;
    margin-top: 20px;
    color: var(--color-muted);
    font-size: 18px;
    line-height: 1.7;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 24px;
    color: var(--color-muted);
    font-size: 14px;
    font-weight: 700;
}

.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 820px) 320px;
    gap: 42px;
    align-items: start;
}

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

.article-cover {
    margin-bottom: 34px;
    aspect-ratio: 16 / 8;
    overflow: hidden;
}

.article-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.article-content p {
    margin-top: 18px;
    color: var(--color-muted);
    font-size: 17px;
    line-height: 1.75;
}

.article-content h2 {
    margin-top: 42px;
    color: var(--color-primary);
    font-size: clamp(26px, 3vw, 36px);
    line-height: 1.16;
    font-weight: 850;
    letter-spacing: -0.01em;
}

.article-content h3 {
    margin-top: 30px;
    color: var(--color-primary);
    font-size: 24px;
    line-height: 1.25;
    font-weight: 800;
}

.article-content ul,
.article-content ol {
    display: grid;
    gap: 10px;
    margin-top: 18px;
    padding-left: 22px;
    color: var(--color-muted);
    font-size: 16px;
    line-height: 1.7;
}

.article-content ul {
    list-style: disc;
}

.article-content ol {
    list-style: decimal;
}

.article-content table {
    width: 100%;
    margin-top: 24px;
    border-collapse: collapse;
    background: var(--color-white);
    border: 1px solid var(--color-border);
}

.article-content th,
.article-content td {
    padding: 16px;
    border: 1px solid var(--color-border);
    text-align: left;
    vertical-align: top;
    font-size: 15px;
    line-height: 1.5;
}

.article-content th {
    color: var(--color-primary);
    background: var(--color-bg);
    font-weight: 800;
}

.article-content td {
    color: var(--color-muted);
}

.article-content blockquote {
    margin: 34px 0 0;
    padding: 24px;
    border-left: 5px solid var(--color-accent);
    background: var(--color-bg);
    color: var(--color-primary);
    font-size: 18px;
    line-height: 1.6;
    font-weight: 700;
}

.article-service-banner {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 24px;
    align-items: center;
    margin-top: 38px;
    padding: 28px;
    background: var(--color-primary);
    color: var(--color-white);
}

.article-service-banner span {
    display: inline-flex;
    margin-bottom: 10px;
    color: var(--color-accent);
    font-size: 12px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.article-service-banner h3 {
    margin: 0;
    color: var(--color-white);
    font-size: 24px;
    line-height: 1.2;
}

.article-service-banner p {
    margin-top: 10px;
    color: rgba(255, 255, 255, 0.72);
    font-size: 15px;
}

.article-sidebar {
    position: sticky;
    top: 120px;
    display: grid;
    gap: 18px;
}

.article-toc,
.article-services,
.article-side-cta {
    padding: 22px;
    border: 1px solid var(--color-border);
    background: var(--color-white);
}

.article-toc strong,
.article-services strong,
.article-side-cta span.label {
    display: block;
    margin-bottom: 14px;
    color: var(--color-primary);
    font-size: 15px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.article-toc nav,
.article-services {
    display: grid;
    gap: 10px;
}

.article-toc a,
.article-services a {
    color: var(--color-muted);
    text-decoration: none;
    font-size: 14px;
    line-height: 1.45;
    font-weight: 700;
}

.article-toc a:hover,
.article-services a:hover {
    color: var(--color-primary);
}

.article-side-cta {
    background: var(--color-primary);
    color: var(--color-white);
}

.article-side-cta span.label {
    color: var(--color-accent);
}

.article-side-cta p {
    color: rgba(255, 255, 255, 0.72);
    font-size: 14px;
    line-height: 1.6;
}

.article-side-cta form {
    display: grid;
    gap: 8px;
    margin-top: 16px;
}

.article-side-cta input {
    width: 100%;
    height: 42px;
    padding: 0 12px;
    border: 1px solid rgba(255,255,255,0.16);
    background: rgba(255,255,255,0.08);
    color: var(--color-white);
}

.article-side-cta input::placeholder {
    color: rgba(255,255,255,0.5);
}

.article-side-cta .btn {
    height: 42px;
}

.article-toc--mobile {
    display: none;
    margin-bottom: 28px;
}

.related-articles {
    padding: 76px 0;
    background: var(--color-bg);
}

.related-articles__head {
    margin-bottom: 32px;
}

.related-articles__head h2 {
    color: var(--color-primary);
    font-size: clamp(30px, 3.2vw, 42px);
    line-height: 1.12;
    font-weight: 800;
}

.related-articles__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

@media (max-width: 1180px) {
    .article-layout {
        grid-template-columns: 1fr;
    }

    .article-sidebar {
        position: static;
    }

    .article-toc:not(.article-toc--mobile) {
        display: none;
    }

    .article-toc--mobile {
        display: block;
    }

    .related-articles__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .article-page {
        padding: 24px 0 52px;
    }

    .article-cover {
        aspect-ratio: 16 / 11;
    }

    .article-content table {
        display: block;
        overflow-x: auto;
    }

    .article-service-banner {
        grid-template-columns: 1fr;
    }

    .related-articles {
        padding: 52px 0;
    }

    .related-articles__grid {
        grid-template-columns: 1fr;
    }
}