/* ==========================================================================
   Codex 文章详情页专用样式
   ========================================================================== */

/* ==========================================================================
   文章 Hero 头部
   ========================================================================== */
.article-hero {
    padding: 9rem 2rem 4rem 2rem;
    background: radial-gradient(circle at 50% 0%, #172554 0%, transparent 65%);
    border-bottom: 1px solid var(--border-color);
}

.article-hero-container {
    max-width: 900px;
    margin: 0 auto;
}

.article-breadcrumb {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.article-breadcrumb a {
    color: var(--text-secondary);
    transition: color 0.2s;
}

.article-breadcrumb a:hover {
    color: var(--accent-blue);
}

.bc-sep {
    color: var(--text-muted);
    opacity: 0.5;
}

.article-tags {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.tag {
    display: inline-block;
    padding: 0.3rem 0.85rem;
    font-size: 0.72rem;
    font-weight: 600;
    border-radius: 9999px;
    border: 1px solid;
    letter-spacing: 0.02em;
}

.tag-blue {
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.3);
    color: #60a5fa;
}

.tag-purple {
    background: rgba(139, 92, 246, 0.1);
    border-color: rgba(139, 92, 246, 0.3);
    color: #a78bfa;
}

.tag-green {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.3);
    color: #34d399;
}

.tag-orange {
    background: rgba(249, 115, 22, 0.1);
    border-color: rgba(249, 115, 22, 0.3);
    color: #fb923c;
}

.article-title {
    font-size: 2.75rem;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
}

.article-excerpt {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 2.5rem;
}

.article-meta-bar {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    flex-wrap: wrap;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.author-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.avatar {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #fff;
    font-size: 1rem;
}

.avatar-lg {
    width: 4rem;
    height: 4rem;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.author-name {
    font-size: 0.95rem;
    font-weight: 600;
}

.author-role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.meta-divider {
    width: 1px;
    height: 1.5rem;
    background: var(--border-color);
}

.meta-stat {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.meta-stat svg {
    width: 1rem;
    height: 1rem;
}

/* ==========================================================================
   文章主体布局
   ========================================================================== */
.article-main {
    background: var(--primary-bg);
    padding: 9rem 2rem 6rem 2rem;
}

.article-layout {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 4rem;
    align-items: start;
}

.article-content {
    min-width: 0;
}

/* 摘要卡片 */
.article-summary {
    display: flex;
    gap: 1.25rem;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(139, 92, 246, 0.08));
    border: 1px solid rgba(59, 130, 246, 0.25);
    border-radius: 16px;
    padding: 1.75rem 2rem;
    margin-bottom: 3rem;
}

.summary-icon {
    flex-shrink: 0;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background: rgba(59, 130, 246, 0.2);
    color: #60a5fa;
    display: flex;
    align-items: center;
    justify-content: center;
}

.summary-icon svg {
    width: 1.25rem;
    height: 1.25rem;
}

.summary-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

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

.summary-list li {
    position: relative;
    padding-left: 1.25rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.summary-list li::before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--accent-blue);
    font-weight: 700;
}

/* 段落与文字 */
.article-lead {
    font-size: 1.1rem;
    line-height: 1.85;
    color: var(--text-primary);
    margin-bottom: 2.5rem;
    font-weight: 400;
}

.article-content p {
    font-size: 1rem;
    line-height: 1.85;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.article-content p strong {
    color: var(--text-primary);
    font-weight: 600;
}

.article-content p em {
    color: #c4b5fd;
    font-style: italic;
}

.article-content p code {
    background: rgba(255, 255, 255, 0.06);
    padding: 0.15rem 0.45rem;
    border-radius: 4px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.88em;
    color: #f43f5e;
}

/* 标题 */
.article-content h2 {
    font-size: 1.65rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 3.5rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
    letter-spacing: -0.01em;
    scroll-margin-top: 7rem;
}

.article-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 2.5rem;
    margin-bottom: 1rem;
}

/* 列表 */
.article-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0 2rem 0;
}

.article-list li {
    position: relative;
    padding-left: 1.75rem;
    font-size: 1rem;
    line-height: 1.85;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.article-list li::before {
    content: "";
    position: absolute;
    left: 0.25rem;
    top: 0.75rem;
    width: 6px;
    height: 6px;
    background: var(--accent-blue);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-blue);
}

.article-list li strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* 代码块 */
.code-block {
    background: #0a0e15;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    margin: 2rem 0;
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1.25rem;
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--border-color);
}

.code-lang {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 600;
    letter-spacing: 0.03em;
}

.code-copy {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: #60a5fa;
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-size: 0.75rem;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
    font-family: inherit;
}

.code-copy:hover {
    background: rgba(59, 130, 246, 0.2);
    transform: translateY(-1px);
}

.code-block pre {
    margin: 0;
    padding: 1.25rem 1.5rem;
    overflow-x: auto;
    line-height: 1.6;
}

.code-block pre code {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.88rem;
    color: #e2e8f0;
    background: transparent;
    padding: 0;
}

/* 表格 */
.table-wrapper {
    overflow-x: auto;
    margin: 2rem 0 2.5rem 0;
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.article-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.92rem;
    min-width: 600px;
}

.article-table thead {
    background: rgba(59, 130, 246, 0.08);
}

.article-table th {
    padding: 1rem 1.25rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    font-size: 0.85rem;
    letter-spacing: 0.02em;
}

.article-table td {
    padding: 0.9rem 1.25rem;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.article-table tbody tr:last-child td {
    border-bottom: none;
}

.article-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.article-table .up {
    color: #10b981;
    font-weight: 700;
}

.table-total {
    background: rgba(59, 130, 246, 0.05);
    font-weight: 600;
}

.table-total td {
    color: var(--text-primary) !important;
    border-top: 1px solid var(--border-color);
}

/* 引用块 */
.article-quote {
    position: relative;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.08), rgba(59, 130, 246, 0.05));
    border-left: 4px solid var(--accent-purple);
    border-radius: 0 12px 12px 0;
    padding: 2rem 2.5rem 1.5rem 2.5rem;
    margin: 2.5rem 0;
}

.quote-mark {
    position: absolute;
    top: -10px;
    left: 15px;
    font-size: 4rem;
    color: var(--accent-purple);
    opacity: 0.3;
    line-height: 1;
    font-family: Georgia, serif;
}

.article-quote p {
    font-size: 1.05rem;
    line-height: 1.75;
    color: var(--text-primary);
    font-style: italic;
    margin-bottom: 1rem;
    font-weight: 500;
}

.quote-author {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: normal;
}

/* 内联链接 */
.inline-link {
    color: var(--accent-blue);
    font-weight: 600;
    border-bottom: 1px dashed var(--accent-blue);
    padding-bottom: 1px;
}

.inline-link:hover {
    color: var(--accent-purple);
    border-bottom-color: var(--accent-purple);
}

/* 特性小卡（用于第三/四节） */
.feature-block {
    display: flex;
    gap: 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.75rem 2rem;
    margin: 1.25rem 0;
    transition: all 0.3s ease;
}

.feature-block:hover {
    border-color: var(--accent-blue);
    transform: translateX(4px);
}

.fb-num {
    flex-shrink: 0;
    width: 3rem;
    height: 3rem;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: #fff;
    font-size: 1rem;
    letter-spacing: 0.02em;
}

.fb-content h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0 0 0.5rem 0;
    color: var(--text-primary);
}

.fb-content p {
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0;
}

/* 文章底部 Tag & 分享 */
.article-footer-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    padding: 2rem 0;
    margin-top: 3rem;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.footer-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.share-buttons {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.share-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-right: 0.25rem;
}

.share-btn {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 8px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: all 0.2s;
}

.share-btn:hover {
    border-color: var(--accent-blue);
    transform: translateY(-2px);
}

/* 作者卡 */
.author-card {
    display: flex;
    gap: 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    margin-top: 2rem;
    align-items: center;
}

.author-card-info {
    flex: 1;
}

.author-card-name {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
}

.author-card-bio {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.author-card-links a {
    color: var(--accent-blue);
    font-size: 0.85rem;
    font-weight: 600;
}

.author-card-links a:hover {
    color: var(--accent-purple);
}

/* ==========================================================================
   侧边栏
   ========================================================================== */
.article-sidebar {
    position: sticky;
    top: 6rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.sidebar-block {
    padding: 1.75rem;
    border-radius: 16px;
}

.sidebar-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

/* 目录 */
.toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.toc-list li {
    margin-bottom: 0.25rem;
}

.toc-list a {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    border-left: 2px solid transparent;
    transition: all 0.2s;
    line-height: 1.5;
}

.toc-list a:hover {
    background: rgba(59, 130, 246, 0.06);
    color: var(--accent-blue);
    border-left-color: var(--accent-blue);
    transform: translateX(2px);
}

/* 相关推荐 */
.related-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.related-list li a {
    display: block;
    padding: 0.5rem;
    border-radius: 8px;
    transition: background 0.2s;
}

.related-list li a:hover {
    background: rgba(255, 255, 255, 0.03);
}

.rl-meta {
    display: block;
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-bottom: 0.3rem;
}

.rl-title {
    display: block;
    font-size: 0.88rem;
    color: var(--text-primary);
    line-height: 1.5;
    font-weight: 500;
}

.related-list li a:hover .rl-title {
    color: var(--accent-blue);
}

/* 侧边 CTA */
.sidebar-cta {
    padding: 2rem 1.75rem;
    border-radius: 16px;
    text-align: center;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.12), rgba(139, 92, 246, 0.12));
    border-color: rgba(59, 130, 246, 0.3);
}

.cta-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.sidebar-cta h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.sidebar-cta p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.25rem;
}

.sidebar-cta .btn-primary {
    padding: 0.7rem 1.5rem;
    font-size: 0.9rem;
}

/* ==========================================================================
   相关文章
   ========================================================================== */
.related-articles {
    background: #080a0f;
    border-top: 1px solid var(--border-color);
}

.related-articles .section-container {
    padding: 5rem 2rem;
}

.related-articles .section-header {
    margin-bottom: 3rem;
}

/* ==========================================================================
   响应式适配
   ========================================================================== */
@media (max-width: 1024px) {
    .article-layout {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .article-sidebar {
        position: static;
        order: 2;
    }

    .article-title {
        font-size: 2.2rem;
    }
}

@media (max-width: 768px) {
    .article-main {
        padding: 7rem 1.5rem 4rem 1.5rem;
    }

    .article-title {
        font-size: 1.85rem;
    }

    .article-content h2 {
        font-size: 1.4rem;
        margin-top: 2.5rem;
    }

    .article-summary,
    .article-quote,
    .feature-block,
    .author-card {
        padding: 1.25rem 1.5rem;
    }

    .article-footer-actions {
        flex-direction: column;
        align-items: flex-start;
    }

    .related-articles .section-container {
        padding: 3rem 1.5rem;
    }
}