/* ===== Article Banner ===== */
.article-banner {
    position: relative;
    padding: 180px 0 100px;
    overflow: hidden;
}

.article-banner-bg {
    position: absolute;
    inset: 0;
}

.article-banner-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(10, 15, 26, 0.3) 0%, var(--bg-primary) 100%);
}

.article-banner-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 40px;
}

.article-category-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--gradient-1);
    color: #000;
    font-size: 0.8rem;
    font-weight: 700;
    border-radius: 20px;
    margin-bottom: 20px;
}

.article-title {
    font-size: 2.4rem;
    font-weight: 900;
    line-height: 1.3;
    margin-bottom: 20px;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ===== Article Main Section ===== */
.article-main-section {
    padding: 80px 0;
    background: var(--bg-primary);
}

.article-layout {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 50px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

.article-body {
    max-width: 800px;
}

.article-lead {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.8;
    padding: 24px;
    background: rgba(0, 212, 255, 0.05);
    border-left: 4px solid var(--primary);
    border-radius: 0 12px 12px 0;
    margin-bottom: 40px;
}

.article-body h2 {
    font-size: 1.6rem;
    font-weight: 800;
    margin: 50px 0 20px;
}

.article-body p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
}

.article-body strong {
    color: var(--primary);
    font-weight: 700;
}

.article-blockquote {
    margin: 40px 0;
    padding: 24px 30px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    font-size: 1.1rem;
    font-style: italic;
    color: var(--text-secondary);
    line-height: 1.7;
}

.article-blockquote cite {
    display: block;
    margin-top: 16px;
    font-size: 0.9rem;
    font-style: normal;
    color: var(--primary);
}

.article-list {
    margin: 30px 0;
    padding-left: 0;
}

.article-list li {
    position: relative;
    padding: 12px 0 12px 30px;
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    border-bottom: 1px solid var(--border);
}

.article-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 18px;
    width: 8px;
    height: 8px;
    background: var(--gradient-1);
    border-radius: 50%;
}

.article-list strong {
    color: var(--text-primary);
}

/* ===== Article Chart ===== */
.article-chart {
    margin: 40px 0;
}

.chart-placeholder {
    padding: 30px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
}

.chart-bars {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 30px;
    height: 200px;
    padding: 20px 0;
}

.chart-bar {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    width: 60px;
    height: 100%;
    justify-content: flex-end;
}

.chart-bar::before {
    content: '';
    width: 100%;
    background: linear-gradient(180deg, rgba(0, 212, 255, 0.6), rgba(0, 212, 255, 0.2));
    border-radius: 8px 8px 0 0;
    transition: var(--transition);
}

.chart-bar.active::before {
    background: var(--gradient-1);
}

.chart-bar span:first-child {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.chart-bar span:last-child {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-secondary);
}

.chart-bar.active span:last-child {
    color: var(--primary);
}

.chart-caption {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 20px;
}

/* ===== Article Tags ===== */
.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid var(--border);
}

.article-tag {
    padding: 6px 14px;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 20px;
    font-size: 0.82rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

.article-tag:hover {
    background: rgba(0, 212, 255, 0.15);
    color: var(--primary);
}

/* ===== Article Share ===== */
.article-share {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 30px;
}

.share-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.share-btn {
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}

.share-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* ===== Article Navigation ===== */
.article-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid var(--border);
}

.article-nav-item {
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    transition: var(--transition);
}

.article-nav-item:hover {
    border-color: var(--border-hover);
}

.article-nav-item.next {
    text-align: right;
}

.nav-dir {
    display: block;
    font-size: 0.8rem;
    color: var(--primary);
    margin-bottom: 8px;
}

.nav-title {
    display: block;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
}

/* ===== Sidebar ===== */
.article-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.sidebar-block {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 24px;
}

.sidebar-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

/* Related Articles */
.related-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.related-item a {
    display: flex;
    gap: 12px;
    transition: var(--transition);
}

.related-item a:hover .related-title {
    color: var(--primary);
}

.related-thumb {
    width: 80px;
    height: 60px;
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
}

.related-body {
    flex: 1;
}

.related-title {
    font-size: 0.88rem;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 4px;
    transition: var(--transition);
}

.related-date {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* Sidebar Products */
.sidebar-product {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px;
    background: rgba(0, 212, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: 10px;
    margin-bottom: 12px;
    transition: var(--transition);
}

.sidebar-product:hover {
    border-color: var(--border-hover);
    background: rgba(0, 212, 255, 0.08);
}

.sp-icon {
    font-size: 1.5rem;
    opacity: 0.8;
}

.sp-name {
    font-size: 0.88rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.sp-spec {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* Sidebar CTA */
.sidebar-cta {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(0, 255, 136, 0.05));
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 16px;
    padding: 24px;
    text-align: center;
}

.sidebar-cta h4 {
    font-size: 1rem;
    margin-bottom: 8px;
}

.sidebar-cta p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .article-layout {
        grid-template-columns: 1fr;
    }
    
    .article-sidebar {
        position: static;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
    
    .sidebar-block {
        margin-bottom: 0;
    }
}

@media (max-width: 768px) {
    .article-banner-content {
        padding: 0 20px;
    }
    
    .article-title {
        font-size: 1.8rem;
    }
    
    .article-layout {
        padding: 0 20px;
    }
    
    .article-sidebar {
        grid-template-columns: 1fr;
    }
    
    .article-nav {
        grid-template-columns: 1fr;
    }
    
    .chart-bars {
        gap: 15px;
    }
    
    .chart-bar {
        width: 40px;
    }
}