/* ============================================
   QIANMIAO PEPTIDES - Blog & Article Styles
   ============================================ */

/* Page Header */
.page-header {
    position: relative;
    padding: calc(var(--topbar-height) + var(--header-height) + 60px) 0 60px;
    background: url('https://images.unsplash.com/photo-1457369804613-52c61a468e7d?w=1920&q=80') center center / cover no-repeat;
}
.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 77, 128, 0.92) 0%, rgba(0, 149, 222, 0.88) 100%);
}
.page-header .container {
    position: relative;
    z-index: 1;
}
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 16px;
}
.breadcrumb a { color: rgba(255,255,255,0.8); transition: color var(--transition); }
.breadcrumb a:hover { color: white; }
.breadcrumb-sep { color: rgba(255,255,255,0.4); }
.breadcrumb-current { color: white; }
.page-title {
    font-size: 42px;
    font-weight: 700;
    color: white;
    margin-bottom: 12px;
}
.page-subtitle {
    font-size: 18px;
    color: rgba(255,255,255,0.85);
    max-width: 700px;
}

@media (max-width: 768px) {
    .page-header { padding: calc(var(--header-height) + 40px) 0 40px; }
    .page-title { font-size: 28px; }
    .page-subtitle { font-size: 15px; }
}

/* Featured Section */
.featured-section {
    padding: 60px 0;
    background: white;
}
.featured-article {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 48px;
    align-items: center;
    background: var(--color-bg-light);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition);
}
.featured-article:hover {
    box-shadow: var(--shadow-lg);
}
.featured-image {
    position: relative;
    height: 100%;
    min-height: 400px;
}
.featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.featured-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    padding: 8px 16px;
    background: var(--gradient-card);
    color: white;
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
}
.featured-content {
    padding: 40px 40px 40px 0;
}
.featured-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}
.featured-meta .article-category {
    padding: 6px 14px;
    background: var(--color-primary);
    color: white;
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
}
.featured-meta .article-date {
    font-size: 13px;
    color: var(--color-text-muted);
}
.article-category {
    padding: 6px 14px;
    background: var(--color-bg-card);
    color: var(--color-primary);
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
}
.article-date {
    font-size: 13px;
    color: var(--color-text-muted);
}
.featured-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.3;
    margin-bottom: 16px;
}
.featured-excerpt {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
}
.featured-author {
    display: flex;
    align-items: center;
    gap: 16px;
}
.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    overflow: hidden;
}
.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.author-info {
    display: flex;
    flex-direction: column;
}
.author-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text);
}
.author-role {
    font-size: 13px;
    color: var(--color-text-muted);
}
.read-time {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--color-text-muted);
}
.read-time .icon { width: 16px; height: 16px; }
/* Featured article read-time alignment */
.featured-author .read-time {
    margin-left: auto;
}

@media (max-width: 992px) {
    .featured-article { grid-template-columns: 1fr; }
    .featured-image { min-height: 300px; }
    .featured-content { padding: 32px; }
}

/* Filter Section */
.filter-section {
    padding: 0 0 40px;
    background: white;
}
.filter-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    padding: 16px 24px;
    background: var(--color-bg-light);
    border-radius: var(--radius-lg);
}
.filter-categories {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.filter-btn {
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
    border-radius: var(--radius-full);
    transition: all var(--transition);
}
.filter-btn:hover {
    color: var(--color-primary);
    background: white;
}
.filter-btn.active {
    background: var(--gradient-card);
    color: white;
}
.filter-search {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    min-width: 280px;
}
.filter-search .icon {
    width: 18px;
    height: 18px;
    color: var(--color-text-muted);
}
.filter-search input {
    flex: 1;
    border: none;
    background: none;
    font-size: 14px;
    color: var(--color-text);
    outline: none;
}
.filter-search input::placeholder { color: var(--color-text-muted); }

@media (max-width: 992px) {
    .filter-bar { flex-direction: column; align-items: stretch; }
    .filter-search { min-width: auto; }
}

/* Blog Grid */
.blog-section {
    padding: 40px 0 80px;
    background: var(--color-bg-light);
}
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 48px;
}
.article-card {
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
}
.article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
/* Article Card Image - Remove all gaps */
.article-card .article-image {
    display: block;
    height: 200px;
    overflow: hidden;
    margin: 0;
    padding: 0;
    line-height: 0;
    flex-shrink: 0;
}
.article-card .article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
    display: block;
    margin: 0;
    padding: 0;
    border-radius: 0;
}
.article-card:hover .article-image img {
    transform: scale(1.05);
}
.article-card .article-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.article-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}
.article-meta .article-category {
    padding: 6px 14px;
    background: var(--color-primary);
    color: white;
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
}
.article-title {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 10px;
}
.article-title a {
    color: var(--color-text);
    transition: color var(--transition);
}
.article-title a:hover { color: var(--color-primary); }
.article-card .article-excerpt {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}
.article-card .article-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid var(--color-border-light);
    margin-top: auto;
}
.read-more {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
}
.read-more .icon {
    width: 16px;
    height: 16px;
    transition: transform var(--transition);
}
.read-more:hover .icon {
    transform: translateX(4px);
}

@media (max-width: 992px) {
    .blog-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 576px) {
    .blog-grid { grid-template-columns: 1fr; }
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
}
.pagination-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    transition: all var(--transition);
}
.pagination-btn:hover:not(.disabled) {
    border-color: var(--color-primary);
    color: var(--color-primary);
}
.pagination-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}
.pagination-btn .icon { width: 16px; height: 16px; }
.pagination-numbers {
    display: flex;
    align-items: center;
    gap: 8px;
}
.pagination-num {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    transition: all var(--transition);
}
.pagination-num:hover { border-color: var(--color-primary); color: var(--color-primary); }
.pagination-num.active {
    background: var(--gradient-card);
    border-color: transparent;
    color: white;
}
.pagination-dots {
    color: var(--color-text-muted);
}

/* Newsletter */
.newsletter-section {
    padding: 80px 0;
    background: var(--gradient-card);
}
.newsletter-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
}
.newsletter-content { color: white; }
.newsletter-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}
.newsletter-text {
    font-size: 16px;
    color: rgba(255,255,255,0.85);
}
.newsletter-form {
    display: flex;
    gap: 12px;
    flex-shrink: 0;
}
.newsletter-form input {
    padding: 14px 20px;
    width: 320px;
    border: none;
    border-radius: var(--radius-full);
    font-size: 14px;
    outline: none;
}
.newsletter-form .btn {
    flex-shrink: 0;
}
.newsletter-cta {
    flex-shrink: 0;
}
.newsletter-cta .btn {
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}
.newsletter-cta .btn .icon {
    width: 18px;
    height: 18px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
}

@media (max-width: 992px) {
    .newsletter-inner { flex-direction: column; text-align: center; }
    .newsletter-form { width: 100%; flex-direction: column; }
    .newsletter-form input { width: 100%; }
    .newsletter-cta { width: 100%; }
    .newsletter-cta .btn { width: 100%; justify-content: center; }
}

/* ============================================
   ARTICLE SINGLE PAGE STYLES
   ============================================ */

/* Article Header */
.article-header {
    position: relative;
    padding: calc(var(--topbar-height) + var(--header-height) + 60px) 0 60px;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
}
.article-header .container {
    position: relative;
    z-index: 1;
}
.article-header .breadcrumb {
    color: rgba(255,255,255,0.7);
    margin-bottom: 16px;
}
.article-header .breadcrumb a {
    color: rgba(255,255,255,0.8);
}
.article-header .breadcrumb a:hover {
    color: white;
}
.article-header .breadcrumb-sep {
    color: rgba(255,255,255,0.4);
}
.article-header .breadcrumb-current {
    color: white;
}
/* Article category in header area should be white */
.article-header .article-category {
    background: rgba(255,255,255,0.2);
    color: white;
}
.article-header-content {
    max-width: 800px;
}
.article-category-badge {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(255,255,255,0.2);
    color: white;
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    margin-bottom: 20px;
}
.article-main-title {
    font-size: 38px;
    font-weight: 700;
    color: white;
    line-height: 1.25;
    margin-bottom: 16px;
}
.article-lead {
    font-size: 18px;
    color: rgba(255,255,255,0.9);
    line-height: 1.7;
    margin-bottom: 32px;
}
.article-header-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.2);
}
.article-author-full {
    display: flex;
    align-items: center;
    gap: 16px;
}
.article-author-full .author-avatar {
    width: 56px;
    height: 56px;
    border: 2px solid rgba(255,255,255,0.3);
}
.author-details {
    display: flex;
    flex-direction: column;
}
.author-details .author-name {
    color: white;
    font-size: 16px;
}
.author-details .author-role {
    color: rgba(255,255,255,0.7);
}
.article-stats {
    display: flex;
    align-items: center;
    gap: 24px;
}
.article-stats span {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.8);
    font-size: 14px;
}
.article-stats .icon { width: 18px; height: 18px; }

@media (max-width: 768px) {
    .article-main-title { font-size: 26px; }
    .article-lead { font-size: 16px; }
    .article-header-meta { flex-direction: column; align-items: flex-start; gap: 20px; }
}

/* Article Content */
.article-content-section {
    padding: 60px 0;
    background: var(--color-bg-light);
}
.article-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 48px;
    align-items: start;
}
.article-main {
    background: white;
    border-radius: var(--radius-xl);
    padding: 0;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}
.article-featured-image {
    margin: 0;
    padding: 0;
    line-height: 0;
}
.article-featured-image img {
    width: 100%;
    height: auto;
    display: block;
    margin: 0;
    padding: 0;
}
.article-featured-image figcaption {
    padding: 12px 40px;
    font-size: 13px;
    color: var(--color-text-muted);
    background: var(--color-bg-light);
    line-height: 1.5;
}
/* Article Body Typography */
.article-body {
    padding: 40px;
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-text);
}
.article-body .intro-paragraph {
    font-size: 18px;
    color: var(--color-text-secondary);
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--color-border-light);
}
.article-body h2 {
    font-size: 26px;
    font-weight: 700;
    color: var(--color-text);
    margin: 40px 0 16px;
}
.article-body h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text);
    margin: 32px 0 12px;
}
.article-body p {
    margin-bottom: 20px;
}
.article-body a {
    color: var(--color-primary);
    text-decoration: underline;
}

/* Article Lists */
.article-list {
    margin: 20px 0;
    padding-left: 0;
}
.article-list li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 12px;
}
.article-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    background: var(--color-primary);
    border-radius: 50%;
}
.article-list.numbered {
    counter-reset: item;
}
.article-list.numbered li {
    padding-left: 36px;
}
.article-list.numbered li::before {
    content: counter(item);
    counter-increment: item;
    width: 24px;
    height: 24px;
    background: var(--color-bg-card);
    color: var(--color-primary);
    font-size: 12px;
    font-weight: 600;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    top: 4px;
}

/* Blockquote */
.article-quote {
    margin: 32px 0;
    padding: 32px;
    background: var(--color-bg-card);
    border-left: 4px solid var(--color-primary);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}
.article-quote p {
    font-size: 18px;
    font-style: italic;
    color: var(--color-text);
    margin-bottom: 12px;
}
.article-quote cite {
    font-size: 14px;
    color: var(--color-text-muted);
    font-style: normal;
}

/* Callout */
.article-callout {
    display: flex;
    gap: 16px;
    margin: 32px 0;
    padding: 24px;
    background: linear-gradient(135deg, rgba(0, 149, 222, 0.1) 0%, rgba(160, 223, 254, 0.1) 100%);
    border: 1px solid var(--color-primary-light);
    border-radius: var(--radius-lg);
}
.callout-icon {
    width: 40px;
    height: 40px;
    background: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.callout-icon .icon { width: 20px; height: 20px; color: white; }
.callout-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 6px;
}
.callout-content p {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin: 0;
}

/* Article Image (inside article body) */
.article-body .article-image,
figure.article-image {
    margin: 32px 0;
}
.article-body .article-image img,
figure.article-image img {
    width: 100%;
    border-radius: var(--radius-lg);
}
.article-body .article-image figcaption,
figure.article-image figcaption {
    margin-top: 12px;
    font-size: 13px;
    color: var(--color-text-muted);
    text-align: center;
    line-height: 1.5;
    padding: 0;
    background: transparent;
}

/* Tags */
.article-tags {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 0;
    margin-bottom: 32px;
    padding: 24px 40px;
    border-top: 1px solid var(--color-border-light);
}
.tags-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
}
.tag {
    padding: 6px 14px;
    background: var(--color-bg-light);
    color: var(--color-text-secondary);
    font-size: 13px;
    border-radius: var(--radius-full);
    transition: all var(--transition);
}
.tag:hover {
    background: var(--color-bg-card);
    color: var(--color-primary);
}

/* Share */
.article-share {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 0;
    padding: 32px 40px;
    border-top: 1px solid var(--color-border-light);
}
.share-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
}
.share-buttons {
    display: flex;
    gap: 10px;
}
.share-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: all var(--transition);
}
.share-btn .icon { width: 18px; height: 18px; }
.share-btn.linkedin { background: #0077b5; color: white; }
.share-btn.twitter { background: #1da1f2; color: white; }
.share-btn.facebook { background: #1877f2; color: white; }
.share-btn.email { background: var(--color-text-secondary); color: white; }
.share-btn:hover { opacity: 0.85; transform: translateY(-2px); }

/* Author Bio */
.author-bio {
    display: flex;
    gap: 24px;
    margin-top: 40px;
    padding: 32px;
    background: var(--color-bg-light);
    border-radius: var(--radius-xl);
}
.author-bio-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}
.author-bio-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.author-bio-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 4px;
}
.author-bio-role {
    font-size: 14px;
    color: var(--color-primary);
    margin-bottom: 12px;
}
.author-bio-text {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 12px;
}
.author-bio-social {
    display: flex;
    gap: 10px;
}
.author-bio-social a {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    transition: all var(--transition);
}
.author-bio-social a:hover { color: var(--color-primary); }
.author-bio-social .icon { width: 16px; height: 16px; }

/* Sidebar - Sticky follow page scroll */
.article-sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
    position: sticky;
    top: calc(var(--header-height) + var(--topbar-height) + 24px);
    align-self: flex-start;
}
.sidebar-widget {
    background: white;
    border-radius: var(--radius-xl);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}
.widget-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--color-border-light);
}

/* TOC Widget */
.toc-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.toc-link {
    font-size: 14px;
    color: var(--color-text-secondary);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}
.toc-link:hover { background: var(--color-bg-light); color: var(--color-primary); }
.toc-link.active {
    background: var(--color-bg-card);
    color: var(--color-primary);
    font-weight: 500;
}

/* CTA Widget */
.cta-widget {
    background: var(--gradient-card);
    color: white;
}
.cta-widget .widget-title {
    color: white;
    border-bottom-color: rgba(255,255,255,0.2);
}
.cta-widget p {
    font-size: 14px;
    color: rgba(255,255,255,0.9);
    margin-bottom: 16px;
}
.cta-widget .btn {
    background: white !important;
    color: var(--color-primary) !important;
}
.cta-widget .btn:hover {
    background: rgba(255,255,255,0.9) !important;
}

/* Related Articles */
.related-articles {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.related-article {
    display: flex;
    gap: 12px;
}
.related-article img {
    width: 80px;
    height: 60px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}
.related-article-content {
    flex: 1;
}
.related-category {
    font-size: 10px;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
}
.related-article h4 {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text);
    line-height: 1.4;
    margin-top: 4px;
    transition: color var(--transition);
}
.related-article:hover h4 { color: var(--color-primary); }

/* More Articles Section */
.more-articles-section {
    padding: 60px 0 80px;
    background: white;
}
.more-articles-section .section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}
.view-all-link {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
}
.view-all-link .icon { width: 16px; height: 16px; }
.more-articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

@media (max-width: 992px) {
    .article-layout { grid-template-columns: 1fr; }
    .article-sidebar { 
        position: static;
    }
    .more-articles-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 576px) {
    .article-body { padding: 24px; }
    .article-tags { padding: 20px 24px; }
    .article-share { padding: 24px; }
    .article-featured-image figcaption { padding: 12px 24px; }
    .author-bio { flex-direction: column; text-align: center; }
    .author-bio-social { justify-content: center; }
    .more-articles-grid { grid-template-columns: 1fr; }
}