/* ==========================================================================
   Blog Styles - 博客首页 & 文章列表
   参考 Laifen US 站设计还原
   ========================================================================== */

/* ========== 博客头部区域 ========== */
.blog-header {
    text-align: center;
    padding: 60px 20px 40px;
    max-width: var(--laifen-container-xl);
    margin: 0 auto;
}

.blog-header__title {
    font-size: var(--laifen-font-5xl);
    font-weight: var(--laifen-font-bold);
    color: var(--laifen-text-primary);
    margin: 0 0 16px;
    line-height: var(--laifen-line-height-tight);
}

.blog-header__description {
    font-size: var(--laifen-font-sm);
    color: var(--laifen-text-secondary);
    max-width: 640px;
    margin: 0 auto;
    line-height: var(--laifen-line-height-relaxed);
}

/* ========== 分类标签栏 ========== */
.blog-categories {
    max-width: var(--laifen-container-xl);
    margin: 0 auto 40px;
    padding: 0 20px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.blog-categories::-webkit-scrollbar {
    display: none;
}

.blog-categories__list {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    list-style: none;
    margin: 0;
    padding: 0;
    white-space: nowrap;
}

.blog-categories__item {
    margin: 0;
}

.blog-categories__link {
    display: inline-block;
    padding: 8px 20px;
    font-size: var(--laifen-font-xs);
    font-weight: var(--laifen-font-medium);
    color: var(--laifen-text-primary);
    background: var(--laifen-bg-light);
    border-radius: var(--laifen-radius-full);
    text-decoration: none;
    transition: all var(--laifen-transition-fast);
    border: 1px solid transparent;
}

.blog-categories__link:hover {
    background: var(--laifen-bg-gray);
    color: var(--laifen-text-primary);
}

.blog-categories__link--active {
    background: var(--laifen-secondary);
    color: var(--laifen-text-white);
}

.blog-categories__link--active:hover {
    background: var(--laifen-secondary-hover);
    color: var(--laifen-text-white);
}

/* ========== 博客容器 ========== */
.blog-container {
    max-width: var(--laifen-container-xl);
    margin: 0 auto;
    padding: 0 20px 60px;
}

/* ========== Hero 置顶文章 ========== */
.blog-hero {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    align-items: center;
    margin-bottom: 60px;
}

.blog-hero__image {
    border-radius: var(--laifen-radius-lg);
    overflow: hidden;
    aspect-ratio: 16 / 10;
}

.blog-hero__image a {
    display: block;
    width: 100%;
    height: 100%;
}

.blog-hero__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--laifen-transition-slow);
}

.blog-hero__image:hover img {
    transform: scale(1.03);
}

.blog-hero__content {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.blog-hero__meta {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.blog-hero__category {
    display: inline-block;
    padding: 4px 12px;
    font-size: var(--laifen-font-xs);
    font-weight: var(--laifen-font-medium);
    color: var(--laifen-text-secondary);
    background: var(--laifen-bg-light);
    border-radius: var(--laifen-radius-full);
    text-decoration: none;
    transition: background var(--laifen-transition-fast);
}

.blog-hero__category:hover {
    background: var(--laifen-bg-gray);
    color: var(--laifen-text-primary);
}

.blog-hero__date {
    font-size: var(--laifen-font-xs);
    color: var(--laifen-text-secondary);
}

.blog-hero__title {
    font-size: var(--laifen-font-3xl);
    font-weight: var(--laifen-font-bold);
    color: var(--laifen-text-primary);
    margin: 0;
    line-height: var(--laifen-line-height-tight);
}

.blog-hero__title a {
    color: inherit;
    text-decoration: none;
    transition: color var(--laifen-transition-fast);
}

.blog-hero__title a:hover {
    color: var(--laifen-text-secondary);
}

.blog-hero__excerpt {
    font-size: var(--laifen-font-sm);
    color: var(--laifen-text-secondary);
    line-height: var(--laifen-line-height-relaxed);
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-hero__read-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: var(--laifen-font-sm);
    font-weight: var(--laifen-font-medium);
    color: var(--laifen-text-primary);
    text-decoration: underline;
    text-underline-offset: 4px;
    transition: color var(--laifen-transition-fast);
}

.blog-hero__read-more:hover {
    color: var(--laifen-primary);
}

/* ========== 3列文章卡片网格 ========== */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 60px;
}

.blog-card {
    display: flex;
    flex-direction: column;
    background: var(--laifen-bg-white);
    border-radius: var(--laifen-radius-lg);
    overflow: hidden;
    transition: box-shadow var(--laifen-transition-base);
}

.blog-card:hover {
    box-shadow: var(--laifen-shadow-md);
}

.blog-card__image {
    overflow: hidden;
    aspect-ratio: 16 / 10;
    border-radius: var(--laifen-radius-lg);
}

.blog-card__image a {
    display: block;
    width: 100%;
    height: 100%;
}

.blog-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--laifen-transition-slow);
}

.blog-card:hover .blog-card__image img {
    transform: scale(1.05);
}

.blog-card__content {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 16px 4px;
    flex: 1;
}

.blog-card__meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.blog-card__category {
    display: inline-block;
    padding: 3px 10px;
    font-size: 11px;
    font-weight: var(--laifen-font-medium);
    color: var(--laifen-text-secondary);
    background: var(--laifen-bg-light);
    border-radius: var(--laifen-radius-full);
    text-decoration: none;
    transition: background var(--laifen-transition-fast);
}

.blog-card__category:hover {
    background: var(--laifen-bg-gray);
    color: var(--laifen-text-primary);
}

.blog-card__date {
    font-size: 11px;
    color: var(--laifen-text-muted);
}

.blog-card__title {
    font-size: var(--laifen-font-base);
    font-weight: var(--laifen-font-semibold);
    color: var(--laifen-text-primary);
    margin: 0;
    line-height: var(--laifen-line-height-tight);
}

.blog-card__title a {
    color: inherit;
    text-decoration: none;
    transition: color var(--laifen-transition-fast);
}

.blog-card__title a:hover {
    color: var(--laifen-text-secondary);
}

.blog-card__excerpt {
    font-size: var(--laifen-font-xs);
    color: var(--laifen-text-secondary);
    line-height: var(--laifen-line-height-relaxed);
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card__read-more {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: var(--laifen-font-xs);
    font-weight: var(--laifen-font-medium);
    color: var(--laifen-text-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
    margin-top: auto;
    transition: color var(--laifen-transition-fast);
}

.blog-card__read-more:hover {
    color: var(--laifen-primary);
}

/* ========== 全幅特色文章 ========== */
.blog-featured {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    margin-bottom: 60px;
    background: var(--laifen-bg-light);
    border-radius: var(--laifen-radius-lg);
    overflow: hidden;
}

.blog-featured__image {
    overflow: hidden;
    height: 100%;
    min-height: 360px;
}

.blog-featured__image a {
    display: block;
    width: 100%;
    height: 100%;
}

.blog-featured__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--laifen-transition-slow);
}

.blog-featured__image:hover img {
    transform: scale(1.03);
}

.blog-featured__content {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 40px 40px 40px 0;
}

.blog-featured__meta {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.blog-featured__category {
    display: inline-block;
    padding: 4px 12px;
    font-size: var(--laifen-font-xs);
    font-weight: var(--laifen-font-medium);
    color: var(--laifen-text-secondary);
    background: var(--laifen-bg-white);
    border-radius: var(--laifen-radius-full);
    text-decoration: none;
    transition: background var(--laifen-transition-fast);
}

.blog-featured__category:hover {
    background: var(--laifen-bg-gray);
    color: var(--laifen-text-primary);
}

.blog-featured__date {
    font-size: var(--laifen-font-xs);
    color: var(--laifen-text-secondary);
}

.blog-featured__title {
    font-size: var(--laifen-font-2xl);
    font-weight: var(--laifen-font-bold);
    color: var(--laifen-text-primary);
    margin: 0;
    line-height: var(--laifen-line-height-tight);
}

.blog-featured__title a {
    color: inherit;
    text-decoration: none;
    transition: color var(--laifen-transition-fast);
}

.blog-featured__title a:hover {
    color: var(--laifen-text-secondary);
}

.blog-featured__excerpt {
    font-size: var(--laifen-font-sm);
    color: var(--laifen-text-secondary);
    line-height: var(--laifen-line-height-relaxed);
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-featured__read-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: var(--laifen-font-sm);
    font-weight: var(--laifen-font-medium);
    color: var(--laifen-text-primary);
    text-decoration: underline;
    text-underline-offset: 4px;
    transition: color var(--laifen-transition-fast);
}

.blog-featured__read-more:hover {
    color: var(--laifen-primary);
}

/* ========== 分页 ========== */
.blog-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 40px 0;
}

.blog-pagination .nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.blog-pagination .page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    font-size: var(--laifen-font-sm);
    font-weight: var(--laifen-font-medium);
    color: var(--laifen-text-primary);
    background: var(--laifen-bg-white);
    border: 1px solid var(--laifen-border-light);
    border-radius: var(--laifen-radius-md);
    text-decoration: none;
    transition: all var(--laifen-transition-fast);
}

.blog-pagination .page-numbers:hover {
    background: var(--laifen-bg-light);
    border-color: var(--laifen-border-gray);
}

.blog-pagination .page-numbers.current {
    background: var(--laifen-secondary);
    color: var(--laifen-text-white);
    border-color: var(--laifen-secondary);
}

.blog-pagination .page-numbers.dots {
    border: none;
    background: none;
}

.blog-pagination .prev.page-numbers,
.blog-pagination .next.page-numbers {
    font-weight: var(--laifen-font-semibold);
}

/* ========== 空状态 ========== */
.blog-empty {
    text-align: center;
    padding: 80px 20px;
}

.blog-empty__title {
    font-size: var(--laifen-font-2xl);
    font-weight: var(--laifen-font-bold);
    color: var(--laifen-text-primary);
    margin: 0 0 12px;
}

.blog-empty__text {
    font-size: var(--laifen-font-base);
    color: var(--laifen-text-secondary);
}

/* ========== 响应式 - 平板 ========== */
@media (max-width: 1024px) {
    .blog-header {
        padding: 40px 20px 30px;
    }

    .blog-header__title {
        font-size: var(--laifen-font-4xl);
    }

    .blog-hero {
        grid-template-columns: 1fr;
        gap: 24px;
        margin-bottom: 40px;
    }

    .blog-hero__title {
        font-size: var(--laifen-font-2xl);
    }

    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
        margin-bottom: 40px;
    }

    .blog-featured {
        grid-template-columns: 1fr;
        margin-bottom: 40px;
    }

    .blog-featured__image {
        min-height: 280px;
    }

    .blog-featured__content {
        padding: 24px;
    }

    .blog-categories__list {
        justify-content: flex-start;
    }
}

/* ========== 响应式 - 移动端 ========== */
@media (max-width: 767px) {
    .blog-header {
        padding: 30px 16px 20px;
    }

    .blog-header__title {
        font-size: var(--laifen-font-3xl);
    }

    .blog-header__description {
        font-size: var(--laifen-font-xs);
    }

    .blog-categories {
        padding: 0 16px;
        margin-bottom: 24px;
    }

    .blog-container {
        padding: 0 16px 40px;
    }

    .blog-hero {
        margin-bottom: 32px;
    }

    .blog-hero__title {
        font-size: var(--laifen-font-xl);
    }

    .blog-hero__excerpt {
        -webkit-line-clamp: 3;
        line-clamp: 3;
    }

    .blog-grid {
        grid-template-columns: 1fr;
        gap: 24px;
        margin-bottom: 32px;
    }

    .blog-featured {
        margin-bottom: 32px;
    }

    .blog-featured__image {
        min-height: 220px;
    }

    .blog-featured__content {
        padding: 20px 16px;
    }

    .blog-featured__title {
        font-size: var(--laifen-font-xl);
    }

    .blog-pagination .page-numbers {
        min-width: 36px;
        height: 36px;
        font-size: var(--laifen-font-xs);
    }
}

/* ==========================================================================
   单篇博客文章页 - 两栏布局
   ========================================================================== */

/* ========== 文章顶部区（全宽） ========== */
.blog-single {
    padding: 0 0 0;
}

.blog-single__top {
    max-width: var(--laifen-container-xl);
    margin: 0 auto;
    padding: 40px 20px 0;
}

.blog-single__top .entry-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

.blog-single__top .entry-categories a {
    display: inline-block;
    padding: 4px 12px;
    font-size: var(--laifen-font-xs);
    font-weight: var(--laifen-font-medium);
    color: var(--laifen-text-secondary);
    background: var(--laifen-bg-light);
    border-radius: var(--laifen-radius-full);
    text-decoration: none;
    transition: background var(--laifen-transition-fast);
}

.blog-single__top .entry-categories a:hover {
    background: var(--laifen-bg-gray);
    color: var(--laifen-text-primary);
}

.blog-single__top .entry-date {
    font-size: var(--laifen-font-xs);
    color: var(--laifen-text-secondary);
}

.blog-single__top .entry-title {
    font-size: clamp(1.75rem, 3vw, 2.75rem);
    font-weight: var(--laifen-font-bold);
    color: var(--laifen-text-primary);
    margin: 0 0 24px;
    line-height: var(--laifen-line-height-tight);
    max-width: 900px;
}

/* Hero 特色图片（全宽） */
.blog-single__hero {
    width: 100%;
    max-width: var(--laifen-container-xl);
    margin: 0 auto 40px;
    padding: 0 20px;
}

.blog-single__hero-inner {
    border-radius: var(--laifen-radius-lg);
    overflow: hidden;
    aspect-ratio: 21 / 9;
}

.blog-single__hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ========== 两栏布局容器 ========== */
.blog-single__body {
    max-width: var(--laifen-container-xl);
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 48px;
    align-items: start;
}

/* ========== 左侧：文章主内容 ========== */
.blog-single__content {
    min-width: 0;
}

.blog-single__content .entry-content {
    font-size: var(--laifen-font-base);
    color: var(--laifen-text-primary);
    line-height: 1.85;
}

.blog-single__content .entry-content p {
    margin-bottom: 1.5em;
}

.blog-single__content .entry-content h2 {
    font-size: var(--laifen-font-2xl);
    font-weight: var(--laifen-font-bold);
    margin: 2em 0 0.75em;
    line-height: var(--laifen-line-height-tight);
}

.blog-single__content .entry-content h3 {
    font-size: var(--laifen-font-xl);
    font-weight: var(--laifen-font-semibold);
    margin: 1.5em 0 0.6em;
}

.blog-single__content .entry-content h4 {
    font-size: var(--laifen-font-lg);
    font-weight: var(--laifen-font-semibold);
    margin: 1.2em 0 0.5em;
}

.blog-single__content .entry-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--laifen-radius-md);
    margin: 0.5em 0;
}

.blog-single__content .entry-content blockquote {
    border-left: 4px solid var(--laifen-primary);
    margin: 1.5em 0;
    padding: 1em 1.5em;
    background: var(--laifen-bg-light);
    border-radius: 0 var(--laifen-radius-md) var(--laifen-radius-md) 0;
    font-style: italic;
}

.blog-single__content .entry-content ul,
.blog-single__content .entry-content ol {
    padding-left: 1.5em;
    margin-bottom: 1.5em;
}

.blog-single__content .entry-content li {
    margin-bottom: 0.5em;
}

.blog-single__content .entry-content a {
    color: var(--laifen-primary-dark);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color var(--laifen-transition-fast);
}

.blog-single__content .entry-content a:hover {
    color: var(--laifen-primary);
}

.blog-single__content .entry-content .wp-block-image,
.blog-single__content .entry-content .wp-block-embed {
    margin: 1.5em 0;
}

.blog-single__content .entry-content .wp-block-embed iframe {
    max-width: 100%;
    border-radius: var(--laifen-radius-md);
}

/* 文章底部标签 */
.blog-single__content .entry-footer {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--laifen-border-light);
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    font-size: var(--laifen-font-sm);
    color: var(--laifen-text-secondary);
}

.blog-single__content .entry-footer .tags-links a {
    display: inline-block;
    padding: 3px 10px;
    font-size: var(--laifen-font-xs);
    background: var(--laifen-bg-light);
    border-radius: var(--laifen-radius-full);
    color: var(--laifen-text-secondary);
    text-decoration: none;
    transition: all var(--laifen-transition-fast);
}

.blog-single__content .entry-footer .tags-links a:hover {
    background: var(--laifen-bg-gray);
    color: var(--laifen-text-primary);
}

/* ========== 右侧：粘性侧边栏 ========== */
.blog-single__sidebar {
    position: sticky;
    top: 100px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* 社交分享按钮 */
.blog-sidebar__share {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.blog-sidebar__share-title {
    font-size: var(--laifen-font-xs);
    font-weight: var(--laifen-font-semibold);
    color: var(--laifen-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0 0 4px;
}

.blog-sidebar__share-links {
    display: flex;
    gap: 8px;
}

.blog-sidebar__share-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--laifen-radius-md);
    background: var(--laifen-bg-light);
    color: var(--laifen-text-secondary);
    text-decoration: none;
    transition: all var(--laifen-transition-fast);
}

.blog-sidebar__share-link:hover {
    background: var(--laifen-secondary);
    color: var(--laifen-text-white);
}

.blog-sidebar__share-link svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

/* 目录导航 */
.blog-sidebar__toc {
    background: var(--laifen-bg-light);
    border-radius: var(--laifen-radius-lg);
    padding: 20px;
}

.blog-sidebar__toc-title {
    font-size: var(--laifen-font-sm);
    font-weight: var(--laifen-font-bold);
    color: var(--laifen-text-primary);
    margin: 0 0 12px;
}

.blog-sidebar__toc-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.blog-sidebar__toc-list li {
    margin-bottom: 8px;
}

.blog-sidebar__toc-list a {
    font-size: var(--laifen-font-xs);
    color: var(--laifen-text-secondary);
    text-decoration: none;
    line-height: var(--laifen-line-height-normal);
    transition: color var(--laifen-transition-fast);
    display: block;
}

.blog-sidebar__toc-list a:hover,
.blog-sidebar__toc-list a.active {
    color: var(--laifen-text-primary);
}

/* 侧边栏推荐产品卡片 */
.blog-sidebar__products {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.blog-sidebar__products-title {
    font-size: var(--laifen-font-sm);
    font-weight: var(--laifen-font-bold);
    color: var(--laifen-text-primary);
    margin: 0;
}

.blog-sidebar__product-card {
    display: block;
    border-radius: var(--laifen-radius-md);
    overflow: hidden;
    transition: box-shadow var(--laifen-transition-fast);
}

.blog-sidebar__product-card:hover {
    box-shadow: var(--laifen-shadow-md);
}

.blog-sidebar__product-card img {
    width: 100%;
    height: auto;
    display: block;
    aspect-ratio: 4 / 3;
    object-fit: cover;
}

/* 侧边栏相关文章缩略图 */
.blog-sidebar__related {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.blog-sidebar__related-title {
    font-size: var(--laifen-font-sm);
    font-weight: var(--laifen-font-bold);
    color: var(--laifen-text-primary);
    margin: 0;
}

.blog-sidebar__related-item {
    display: flex;
    gap: 12px;
    align-items: center;
    text-decoration: none;
    transition: opacity var(--laifen-transition-fast);
}

.blog-sidebar__related-item:hover {
    opacity: 0.8;
}

.blog-sidebar__related-thumb {
    flex-shrink: 0;
    width: 80px;
    height: 60px;
    border-radius: var(--laifen-radius-sm);
    overflow: hidden;
}

.blog-sidebar__related-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-sidebar__related-text {
    font-size: var(--laifen-font-xs);
    font-weight: var(--laifen-font-medium);
    color: var(--laifen-text-primary);
    line-height: var(--laifen-line-height-tight);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ========== 作者信息卡 ========== */
.blog-author {
    max-width: var(--laifen-container-xl);
    margin: 48px auto 0;
    padding: 0 20px;
}

.blog-author__card {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    padding: 24px;
    background: var(--laifen-bg-light);
    border-radius: var(--laifen-radius-lg);
}

.blog-author__avatar {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    border-radius: var(--laifen-radius-full);
    overflow: hidden;
}

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

.blog-author__info {
    flex: 1;
    min-width: 0;
}

.blog-author__name {
    font-size: var(--laifen-font-base);
    font-weight: var(--laifen-font-bold);
    color: var(--laifen-text-primary);
    margin: 0 0 4px;
}

.blog-author__name a {
    color: inherit;
    text-decoration: none;
}

.blog-author__name a:hover {
    color: var(--laifen-primary);
}

.blog-author__bio {
    font-size: var(--laifen-font-xs);
    color: var(--laifen-text-secondary);
    line-height: var(--laifen-line-height-relaxed);
    margin: 0;
}

/* ========== 上下篇导航 ========== */
.blog-single__nav {
    max-width: var(--laifen-container-xl);
    margin: 40px auto 0;
    padding: 0 20px;
}

.blog-single__nav .post-navigation {
    border-top: 1px solid var(--laifen-border-light);
    padding: 24px 0;
}

.blog-single__nav .post-navigation .nav-links {
    display: flex;
    justify-content: space-between;
    gap: 24px;
}

.blog-single__nav .post-navigation .nav-subtitle {
    display: block;
    font-size: var(--laifen-font-xs);
    color: var(--laifen-text-secondary);
    margin-bottom: 4px;
}

.blog-single__nav .post-navigation .nav-title {
    font-size: var(--laifen-font-sm);
    font-weight: var(--laifen-font-medium);
    color: var(--laifen-text-primary);
}

.blog-single__nav .post-navigation a {
    text-decoration: none;
}

.blog-single__nav .post-navigation a:hover .nav-title {
    color: var(--laifen-primary);
}

/* ========== 相关文章区 ========== */
.blog-related {
    max-width: var(--laifen-container-xl);
    margin: 60px auto 0;
    padding: 0 20px;
}

.blog-related__title {
    font-size: var(--laifen-font-2xl);
    font-weight: var(--laifen-font-bold);
    color: var(--laifen-text-primary);
    margin: 0 0 24px;
}

.blog-related__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

/* 复用 blog-card 样式 */

/* ========== 全宽 CTA 横幅 ========== */
.blog-cta {
    margin-top: 60px;
    padding: 48px 20px;
    background: var(--laifen-bg-dark);
    text-align: center;
}

.blog-cta__inner {
    max-width: var(--laifen-container-lg);
    margin: 0 auto;
}

.blog-cta__title {
    font-size: var(--laifen-font-2xl);
    font-weight: var(--laifen-font-bold);
    color: var(--laifen-text-white);
    margin: 0 0 16px;
}

.blog-cta__text {
    font-size: var(--laifen-font-sm);
    color: var(--laifen-text-muted);
    margin: 0 0 24px;
    line-height: var(--laifen-line-height-relaxed);
}

.blog-cta__button {
    display: inline-block;
    padding: 12px 32px;
    font-size: var(--laifen-font-sm);
    font-weight: var(--laifen-font-semibold);
    color: var(--laifen-text-black);
    background: var(--laifen-primary);
    border-radius: var(--laifen-radius-full);
    text-decoration: none;
    transition: background var(--laifen-transition-fast);
}

.blog-cta__button:hover {
    background: var(--laifen-primary-hover);
    color: var(--laifen-text-black);
}

/* ========== 响应式 - 平板 ========== */
@media (max-width: 1024px) {
    .blog-single__body {
        grid-template-columns: 1fr 260px;
        gap: 32px;
    }

    .blog-single__hero-inner {
        aspect-ratio: 16 / 8;
    }

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

/* ========== 响应式 - 移动端 ========== */
@media (max-width: 767px) {
    .blog-single__top {
        padding: 24px 16px 0;
    }

    .blog-single__top .entry-title {
        font-size: var(--laifen-font-2xl);
    }

    .blog-single__hero {
        padding: 0 16px;
        margin-bottom: 24px;
    }

    .blog-single__hero-inner {
        aspect-ratio: 16 / 9;
        border-radius: var(--laifen-radius-md);
    }

    .blog-single__body {
        grid-template-columns: 1fr;
        gap: 0;
        padding: 0 16px;
    }

    .blog-single__sidebar {
        position: static;
        order: -1;
        flex-direction: row;
        overflow-x: auto;
        gap: 12px;
        padding-bottom: 16px;
        margin-bottom: 16px;
        border-bottom: 1px solid var(--laifen-border-light);
    }

    .blog-sidebar__toc,
    .blog-sidebar__products,
    .blog-sidebar__related {
        display: none;
    }

    .blog-sidebar__share {
        flex-direction: row;
        align-items: center;
    }

    .blog-sidebar__share-title {
        margin: 0;
        white-space: nowrap;
    }

    .blog-single__content .entry-content {
        font-size: var(--laifen-font-sm);
    }

    .blog-author {
        padding: 0 16px;
        margin-top: 32px;
    }

    .blog-author__card {
        padding: 16px;
        gap: 16px;
    }

    .blog-author__avatar {
        width: 48px;
        height: 48px;
    }

    .blog-single__nav {
        padding: 0 16px;
    }

    .blog-single__nav .post-navigation .nav-links {
        flex-direction: column;
    }

    .blog-related {
        padding: 0 16px;
        margin-top: 40px;
    }

    .blog-related__grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .blog-cta {
        margin-top: 40px;
        padding: 32px 16px;
    }
}