.guide-hero {
    padding: 10rem 0 5rem;
    background:
        linear-gradient(120deg, rgba(33, 33, 33, 0.78), rgba(94, 107, 86, 0.5)),
        var(--guide-image) center / cover no-repeat;
    color: var(--color-white);
}

.guide-hero h1,
.guide-hero p {
    color: inherit;
}

.guide-hero h1 {
    max-width: 920px;
    margin-bottom: var(--space-lg);
}

.guide-hero__intro {
    max-width: 740px;
    font-size: var(--text-lg);
    color: rgba(255, 255, 255, 0.9);
}

.guide-kicker,
.guide-card__category {
    display: inline-block;
    margin-bottom: var(--space-sm);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.guide-kicker {
    color: #e4d8c7;
}

.guide-breadcrumb {
    margin: 0;
    padding: 1rem 0;
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.guide-breadcrumb ol {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    list-style: none;
}

.guide-breadcrumb li:not(:last-child)::after {
    content: "/";
    margin-left: 0.45rem;
    color: #8a8a8a;
}

.guide-intro {
    max-width: 760px;
    margin-bottom: var(--space-2xl);
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-xl);
}

.guide-card {
    display: flex;
    min-height: 340px;
    overflow: hidden;
    border-radius: var(--border-radius-lg);
    background: var(--color-white);
    box-shadow: var(--shadow-md);
}

.guide-card__image {
    width: 42%;
    min-height: 100%;
    object-fit: cover;
    border-radius: 0;
}

.guide-card__body {
    display: flex;
    flex: 1;
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-xl);
}

.guide-card__category {
    color: var(--color-accent-hover);
}

.guide-card h2 {
    font-size: var(--text-2xl);
}

.guide-card p {
    color: var(--color-text-secondary);
}

.guide-card .btn,
.guide-card__status {
    margin-top: auto;
}

.guide-card__status {
    display: inline-flex;
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
    background: var(--color-alabaster);
    color: var(--color-text-secondary);
    font-size: var(--text-xs);
    font-weight: 600;
}

.guide-principles {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.guide-principle {
    padding: var(--space-xl);
    border-top: 3px solid var(--color-accent);
    background: rgba(255, 255, 255, 0.65);
}

.guide-principle h3 {
    font-size: var(--text-xl);
}

.article-shell {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: var(--space-3xl);
    align-items: start;
}

.article-content {
    max-width: 780px;
    font-size: 1.06rem;
}

.article-content h2 {
    margin-top: var(--space-3xl);
    padding-top: var(--space-sm);
}

.article-content h3 {
    margin-top: var(--space-xl);
    font-size: var(--text-2xl);
}

.article-content ul,
.article-content ol {
    margin: 0 0 var(--space-lg) var(--space-xl);
}

.article-content li {
    margin-bottom: var(--space-sm);
}

.article-lead {
    margin-bottom: var(--space-xl);
    font-family: var(--font-serif);
    font-size: var(--text-2xl);
    line-height: 1.45;
}

.article-byline {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem 1rem;
    align-items: center;
    margin: var(--space-lg) 0 0;
    color: rgba(255, 255, 255, 0.85);
    font-size: var(--text-sm);
}

.article-byline a {
    color: var(--color-white);
    text-decoration: underline;
    text-underline-offset: 0.2em;
}

.article-figure {
    margin: var(--space-2xl) 0;
}

.article-figure img {
    width: 100%;
    max-height: 570px;
    object-fit: cover;
}

.article-figure figcaption {
    margin-top: var(--space-sm);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
}

.field-note {
    margin: var(--space-2xl) 0;
    padding: var(--space-xl);
    border-left: 5px solid var(--color-accent);
    background: #e7e3d7;
}

.field-note__label {
    display: block;
    margin-bottom: var(--space-sm);
    color: var(--color-accent-hover);
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.comparison-table {
    width: 100%;
    margin: var(--space-xl) 0;
    border-collapse: collapse;
    background: var(--color-white);
    font-size: var(--text-sm);
}

.comparison-table th,
.comparison-table td {
    padding: 0.9rem 1rem;
    border: 1px solid #d7d2c7;
    text-align: left;
    vertical-align: top;
}

.comparison-table th {
    background: var(--color-olive-dark);
    color: var(--color-white);
}

.article-sidebar {
    position: sticky;
    top: 120px;
    padding: var(--space-lg);
    border-radius: var(--border-radius-lg);
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
}

.article-sidebar h2 {
    font-size: var(--text-xl);
}

.article-sidebar ul {
    list-style: none;
}

.article-sidebar li + li {
    margin-top: var(--space-sm);
}

.article-sidebar a {
    display: block;
    padding: 0.35rem 0;
    color: var(--color-text-secondary);
}

.product-pair {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-lg);
    margin: var(--space-2xl) 0;
}

.article-product {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: var(--space-md);
    align-items: center;
    padding: var(--space-lg);
    border: 1px solid #d7d2c7;
    border-radius: var(--border-radius-lg);
    background: var(--color-white);
}

.article-product img {
    width: 100%;
    height: 165px;
    object-fit: contain;
}

.article-product h3 {
    margin-top: 0;
    font-size: var(--text-xl);
}

.faq-list {
    margin-top: var(--space-xl);
}

.faq-list details {
    padding: var(--space-lg) 0;
    border-top: 1px solid #cfc9bc;
}

.faq-list details:last-child {
    border-bottom: 1px solid #cfc9bc;
}

.faq-list summary {
    cursor: pointer;
    font-family: var(--font-serif);
    font-size: var(--text-xl);
    font-weight: 600;
}

.faq-list details p {
    margin: var(--space-md) 0 0;
}

.source-note {
    margin-top: var(--space-3xl);
    padding-top: var(--space-lg);
    border-top: 1px solid #cfc9bc;
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
}

@media (max-width: 980px) {
    .guide-grid,
    .article-shell {
        grid-template-columns: 1fr;
    }

    .article-sidebar {
        position: static;
        grid-row: 1;
    }

    .guide-principles {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 720px) {
    .guide-hero {
        padding: 8rem 0 3.5rem;
    }

    .guide-card {
        display: block;
    }

    .guide-card__image {
        width: 100%;
        height: 220px;
    }

    .product-pair,
    .article-product {
        grid-template-columns: 1fr;
    }

    .article-product img {
        height: 220px;
    }

    .comparison-scroll {
        overflow-x: auto;
    }
}