/* ── Article Template ─────────────────────────────────────────── */
    .art-hero {
        position: relative;
        border-radius: var(--radius-lg);
        overflow: hidden;
        margin-bottom: 2rem;
        min-height: 380px;
        display: flex;
        align-items: flex-end;
        background: #020617;
    }
    .art-hero-bg {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    .art-hero-overlay {
        position: relative;
        z-index: 1;
        width: 100%;
        padding: 2rem 1.5rem 1.5rem;
    }
    .art-hero-overlay h1 {
        color: #fff;
        font-size: clamp(1.8rem, 4vw, 2.5rem);
        line-height: 1.15;
        margin: 0 0 0.5rem;
        text-shadow: 0 2px 10px rgba(0,0,0,.65), 0 1px 3px rgba(0,0,0,.45);
    }
    .art-hero-sub {
        color: rgba(255,255,255,0.92);
        font-size: 1rem;
        margin: 0;
        max-width: 38rem;
        text-shadow: 0 1px 6px rgba(0,0,0,.6);
    }
    /* Lead paragraph */
    .art-lead {
        font-size: 1.08rem;
        line-height: 1.8;
        color: var(--text-main);
        max-width: 720px;
        margin: 0 auto 2rem;
    }
    /* Table of contents */
    .art-toc {
        background: var(--bg-card);
        border-radius: var(--radius-lg);
        border-top: 3px solid var(--primary-color);
        padding: 1.25rem 1.5rem;
        margin: 0 auto 2.5rem;
        box-shadow: var(--shadow-sm);
        max-width: 720px;
    }
    .art-toc ol {
        margin: 0;
        padding-left: 1.25rem;
        display: flex;
        flex-direction: column;
        gap: 0.35rem;
    }
    .art-toc ol li a {
        color: var(--primary-color);
        text-decoration: none;
        font-size: 0.92rem;
    }
    .art-toc ol li a:hover { text-decoration: underline; }
    /* Constrain section headings to prose column */
    .art-content-section .section-title {
        max-width: 720px;
        margin-left: auto;
        margin-right: auto;
    }
    /* Body prose */
    .art-body-prose {
        max-width: 720px;
        margin: 0 auto;
        line-height: 1.75;
        font-size: 0.97rem;
        color: var(--text-main);
    }
    .art-body-prose p { margin-bottom: 1.1rem; }
    .art-body-prose p:last-child { margin-bottom: 0; }
    .art-body-prose strong { color: var(--text-main); }
    .art-body-prose a { color: var(--primary-color); text-decoration: underline; }
    .art-body-prose a:hover { text-decoration: none; }
    .art-body-prose h3 {
        font-size: 1.05rem;
        font-weight: 700;
        color: var(--text-main);
        margin: 1.5rem 0 0.5rem;
    }
    .art-body-prose ul, .art-body-prose ol {
        padding-left: 1.4rem;
        margin-bottom: 1.1rem;
    }
    .art-body-prose li { margin-bottom: 0.45rem; line-height: 1.7; }
    /* Section links — plain inline link row below prose */
    .art-section-links {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 0.5rem 1rem;
        max-width: 720px;
        margin: 1.25rem auto 0;
    }
    .art-section-links-label {
        font-size: 0.75rem;
        color: var(--text-muted);
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0.05em;
        margin-right: 0.1rem;
    }
    .art-section-links a {
        font-size: 0.85rem;
        color: var(--primary-color);
        text-decoration: underline;
        text-underline-offset: 3px;
        font-weight: 500;
    }
    .art-section-links a:hover { opacity: 0.75; }
    /* Related articles */
    .art-related-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
        gap: 1rem;
    }
    .art-related-card {
        background: var(--bg-card);
        border-radius: var(--radius-lg);
        padding: 1.1rem 1.25rem;
        box-shadow: var(--shadow-sm);
        border-top: 3px solid var(--primary-color);
        text-decoration: none;
        display: flex;
        flex-direction: column;
        transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .art-related-card:hover {
        transform: translateY(-3px);
        box-shadow: var(--shadow-hover);
    }
    .art-related-card-title {
        font-size: 0.95rem;
        font-weight: 600;
        color: var(--text-main);
        margin-bottom: 0.3rem;
        line-height: 1.35;
    }
    .art-related-card-desc {
        font-size: 0.83rem;
        color: var(--text-muted);
        line-height: 1.6;
        flex: 1;
    }
    /* Responsive */
    @media (max-width: 600px) {
        .art-hero { min-height: var(--hero-h-mobile); }
.art-toc { max-width: 100%; }
    }