/* 技术文章详情页样式 */
.article-content-wrapper {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    overflow: hidden;
}

.tech-detail-page,
.tech-detail-page *:not(.bi) {
    font-family: "PingFang SC", "PingFang TC", "苹方", "Microsoft YaHei", Arial, sans-serif;
}

.article-header {
    padding: 1.5rem 1.5rem 1rem;
    border-bottom: 1px solid #f0f0f0;
}

.article-category-badge {
    margin-bottom: 0.75rem;
}

.article-category-badge .badge {
    font-size: 0.8rem;
    padding: 0.4rem 0.8rem;
}

.article-title {
    font-size: clamp(1.55rem, 2vw, 2.05rem);
    font-weight: 760;
    color: #0f172a;
    margin: 0 0 0.55rem;
    line-height: 1.35;
}

.article-meta-bar {
    color: #999;
    font-size: 0.85rem;
}

.article-meta-bar span {
    margin-right: 1rem;
}

.article-body {
    padding: 0.5rem 1.5rem 1.5rem 1.5rem;
    line-height: 1.85;
    color: #444;
    font-size: 1rem;
}

/* Markdown 标题样式 - 从1级到4级，逐级缩小，均加粗凸显章节层次 */
.article-body h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1a1a2e;
    margin-top: 2.2rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #2563eb;
}

.article-body h2 {
    font-size: 1.35rem;
    font-weight: 700;
    color: #1e293b;
    margin-top: 1.8rem;
    margin-bottom: 0.85rem;
    padding-bottom: 0.35rem;
    border-bottom: 1px solid #e2e8f0;
}

.article-body h3 {
    font-size: 1.18rem;
    font-weight: 700;
    color: #334155;
    margin-top: 1.5rem;
    margin-bottom: 0.7rem;
}

.article-body h4 {
    font-size: 1.05rem;
    font-weight: 600;
    color: #475569;
    margin-top: 1.25rem;
    margin-bottom: 0.55rem;
}

.article-body p {
    margin-bottom: 1rem;
}

.article-body img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 1.25rem auto 0.65rem;
}

.article-body ul, .article-body ol {
    margin-bottom: 1rem;
    padding-left: 1.25rem;
}

.article-body li {
    margin-bottom: 0.5rem;
}

/* 嵌套列表：逐级增加缩进，区分不同层级 */
.article-body ul ul,
.article-body ul ol,
.article-body ol ul,
.article-body ol ol {
    margin-top: 0.35rem;
    margin-bottom: 0.35rem;
    padding-left: 1.25rem;
}

.article-body ul ul ul,
.article-body ul ul ol,
.article-body ul ol ul,
.article-body ul ol ol,
.article-body ol ul ul,
.article-body ol ul ol,
.article-body ol ol ul,
.article-body ol ol ol {
    padding-left: 1.25rem;
}

/* 不同层级的列表标记样式 */
.article-body > ul { list-style-type: disc; }
.article-body > ul > li > ul { list-style-type: circle; }
.article-body > ul > li > ul > li > ul { list-style-type: square; }
.article-body > ol { list-style-type: decimal; }
.article-body > ol > li > ol { list-style-type: lower-alpha; }
.article-body > ol > li > ol > li > ol { list-style-type: lower-roman; }

/* ===== 行内代码 ===== */
.article-body :not(pre) > code {
    background: #fef2f2;
    color: #dc2626;
    padding: 0.125rem 0.375rem;
    border-radius: 4px;
    font-size: 0.9em;
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
    white-space: nowrap;
}

/* ===== 代码块（暗色主题，参考飞书/CSDN） ===== */
.code-block-wrapper {
    margin: 1.25rem 0;
    border-radius: 10px;
    overflow: hidden;
    background: #1e293b;
}

.code-block-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 2.25rem;
    padding: 0 0.75rem 0 1.2rem;
    background: rgba(255,255,255,0.04);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    user-select: none;
}

.code-lang {
    font-size: 0.75rem;
    color: #94a3b8;
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    letter-spacing: 0.5px;
}

.code-copy-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.6rem;
    font-size: 0.72rem;
    color: #94a3b8;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 4px;
    cursor: pointer;
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    transition: all 0.15s ease;
    white-space: nowrap;
}

.code-copy-btn:hover {
    color: #e2e8f0;
    background: rgba(255,255,255,0.12);
    border-color: rgba(255,255,255,0.2);
}

.code-copy-btn:active {
    transform: scale(0.96);
}

.code-copy-btn.copied {
    color: #4ade80;
    border-color: rgba(74,222,128,0.3);
    background: rgba(74,222,128,0.1);
}

.code-copy-btn svg {
    width: 0.85rem;
    height: 0.85rem;
    flex-shrink: 0;
}

.code-block-wrapper pre {
    margin: 0;
    border-radius: 0;
    background: transparent;
    padding: 1rem 1.2rem;
    font-size: 0.88rem;
    line-height: 1.65;
    color: #e2e8f0;
    overflow-x: auto;
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

.code-block-wrapper pre code {
    background: none;
    color: inherit;
    padding: 0;
    font-size: inherit;
    font-family: inherit;
    border-radius: 0;
    white-space: pre;
}

/* ===== 表格（斑马纹 + 圆角，参考飞书） ===== */
.article-body table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin: 1.25rem 0;
    font-size: 0.9rem;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    overflow: hidden;
}

.article-body thead th {
    background: #f1f5f9;
    color: #334155;
    font-weight: 600;
    font-size: 0.85rem;
    padding: 0.7rem 0.85rem;
    text-align: left;
    border-bottom: 2px solid #e2e8f0;
}

.article-body thead th:not(:last-child),
.article-body tbody td:not(:last-child) {
    border-right: 1px solid #f1f5f9;
}

.article-body tbody td {
    padding: 0.65rem 0.85rem;
    border-bottom: 1px solid #f1f5f9;
    color: #475569;
    vertical-align: top;
}

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

/* 斑马纹 */
.article-body tbody tr:nth-child(even) {
    background: #f8fafc;
}

.article-body tbody tr:hover {
    background: #eff6ff;
}

/* 表格内代码适配 */
.article-body td code {
    white-space: normal;
    word-break: break-all;
}

/* 表格中的图片 */
.article-body table img,
.article-body td img,
.article-body th img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

/* ===== 引用块（参考飞书/CSDN） ===== */
.article-body blockquote {
    margin: 1.25rem 0;
    padding: 0.85rem 1.15rem;
    border-left: 4px solid #2563eb;
    background: #f0f7ff;
    border-radius: 0 8px 8px 0;
    color: #475569;
}

.article-body blockquote p {
    margin-bottom: 0.35rem;
}

.article-body blockquote p:last-child {
    margin-bottom: 0;
}

/* ===== 分割线 ===== */
.article-body hr {
    border: none;
    border-top: 1px solid #cbd5e1;
    margin: 2rem 0;
}

/* ===== 链接 ===== */
.article-body a {
    color: #2563eb;
    text-decoration: none;
}

.article-body a:hover {
    text-decoration: underline;
}

/* 侧边栏样式 - 与产品详情页一致 */
.nav-card {
    position: sticky;
    top: var(--sticky-offset);
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
    padding: 1.5rem;
}

/* 导航头部样式 - 与产品详情页一致 */
.nav-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #333;
    padding-bottom: 0.75rem;
    margin-bottom: 0.75rem;
    border-bottom: 2px solid #0d6efd;
}

.nav-header i {
    color: #0d6efd;
}

/* 阅读导航样式 */
.toc-nav {
    max-height: calc(100vh - 200px);
    overflow-y: auto;
}

/* 隐藏滚动条 */
.toc-nav::-webkit-scrollbar {
    width: 0;
    background: transparent;
}

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

.toc-item {
    margin-bottom: 0.25rem;
    font-size: 0.85rem;
}

.toc-link {
    color: #666;
    text-decoration: none;
    display: block;
    padding: 0.3rem 0.5rem;
    border-radius: 4px;
    transition: all 0.15s ease;
    line-height: 1.4;
}

.toc-link:hover {
    color: #0d6efd;
    background: #f8f9fa;
}

/* 不同级别标题的缩进和样式 */
.toc-item.level-1 .toc-link {
    color: #333;
}

.toc-item.level-2 {
    padding-left: 0.75rem;
}

.toc-item.level-3 {
    padding-left: 1.5rem;
    font-size: 0.8rem;
}

.toc-item.level-4 {
    padding-left: 2rem;
    font-size: 0.75rem;
}

/* 当前章节高亮 */
.toc-link.active {
    color: #0d6efd;
    background: #e7f1ff;
}

/* 上一篇/下一篇导航 */
.article-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e0e0e0;
}

.article-nav-item {
    flex: 1;
    max-width: 45%;
}

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

.article-nav-label {
    font-size: 0.8rem;
    color: #999;
    margin-bottom: 0.35rem;
}

.article-nav-title {
    color: #667eea;
    text-decoration: none;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.9rem;
}

.article-nav-title:hover {
    text-decoration: underline;
}

/* 文章内容中的标题锚点 - 为固定导航栏留出空间 */
.article-body h1, .article-body h2, .article-body h3, .article-body h4 {
    scroll-margin-top: var(--sticky-offset);
}

/* 粘性侧边栏 */
.sticky-sidebar {
    position: sticky;
    top: var(--sticky-offset);
}

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

.related-item {
    border-bottom: 1px solid #f0f0f0;
}

.related-item:last-child {
    border-bottom: none;
}

.related-link {
    display: block;
    padding: 0.65rem 0;
    color: #475569;
    text-decoration: none;
    line-height: 1.5;
    font-size: 0.9rem;
}

.related-link:hover {
    color: #0d6efd;
}

.related-empty {
    color: #94a3b8;
    font-size: 0.88rem;
    padding: 0.25rem 0;
}