/* css/contentTabulation.css */
.sidebar {
    width: 200px;
    background: var(--bg-card);
    min-height: 600px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--border-color);
}

.sidebar-header {
    background-color: var(--primary-color);
    color: #fff;
    padding: 16px 20px;
    font-size: 16px;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar-header::before {
    content: "🏫";
    font-size: 18px;
}

.sidebar-menu li {
    border-bottom: 1px solid var(--border-light);
}

.sidebar-menu li:last-child {
    border-bottom: none;
}

.sidebar-menu li a,
.sidebar-menu li span {
    display: block;
    padding: 14px 20px;
    color: var(--text-main);
    transition: var(--transition-base);
    font-size: 14px;
}

.sidebar-menu li.active a,
.sidebar-menu li a:hover,
.sidebar-menu li.active span,
.sidebar-menu li span:hover {
    background-color: var(--primary-light);
    color: var(--primary-color);
    font-weight: 600;
}

.right-content {
    width: calc(100% - 224px);
    padding: 0;
    box-sizing: border-box;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    min-height: 600px;
    padding: 24px 32px;
    box-shadow: var(--shadow-soft);
}

.content-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 24px;
}

.content-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-color);
}

.content-title::before {
    content: "📚";
    font-size: 18px;
}

.crumb-nav {
    color: var(--text-light);
    font-size: 13px;
}

.crumb-nav span {
    color: var(--text-light);
    cursor: default;
}

.main-content {
    min-height: calc(100vh - 300px);
}

.article-area {
    min-height: 400px;
}

/* Rich Text Content Styles */
.rich-text-content {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-main);
}

.rich-text-content h1,
.rich-text-content h2,
.rich-text-content h3,
.rich-text-content h4,
.rich-text-content h5,
.rich-text-content h6 {
    color: var(--text-main);
    margin: 24px 0 16px 0;
    font-weight: 600;
    line-height: 1.4;
}

.rich-text-content h1 { font-size: 28px; }
.rich-text-content h2 { font-size: 24px; }
.rich-text-content h3 { font-size: 20px; }
.rich-text-content h4 { font-size: 18px; }
.rich-text-content h5 { font-size: 16px; }
.rich-text-content h6 { font-size: 14px; }

.rich-text-content p {
    margin-bottom: 16px;
    text-indent: 2em;
    text-align: justify;
}

.rich-text-content img {
    max-width: 100%;
    height: auto;
    margin: 16px auto;
    display: block;
    border-radius: var(--radius-base);
}

.rich-text-content a {
    color: var(--primary-color);
    text-decoration: underline;
}

.rich-text-content a:hover {
    color: var(--primary-dark);
}

.rich-text-content ul,
.rich-text-content ol {
    margin: 16px 0;
    padding-left: 2em;
}

.rich-text-content ul {
    list-style-type: disc;
}

.rich-text-content ol {
    list-style-type: decimal;
}

.rich-text-content li {
    margin-bottom: 8px;
    line-height: 1.6;
}

.rich-text-content blockquote {
    margin: 16px 0;
    padding: 12px 20px;
    border-left: 4px solid var(--primary-color);
    background-color: var(--bg-body);
    color: var(--text-secondary);
    font-style: italic;
}

.rich-text-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
}

.rich-text-content table th,
.rich-text-content table td {
    border: 1px solid var(--border-color);
    padding: 10px 12px;
    text-align: left;
}

.rich-text-content table th {
    background-color: var(--bg-body);
    font-weight: 600;
}

.rich-text-content pre,
.rich-text-content code {
    background-color: var(--bg-body);
    border-radius: var(--radius-sm);
    font-family: "Consolas", "Monaco", monospace;
}

.rich-text-content code {
    padding: 2px 6px;
    font-size: 14px;
}

.rich-text-content pre {
    padding: 16px;
    overflow-x: auto;
    margin: 16px 0;
}

.rich-text-content pre code {
    padding: 0;
    background: none;
}

.rich-text-content hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 24px 0;
}

/* Legacy article styles */
.article-title {
    font-size: 26px;
    color: var(--text-main);
    margin-bottom: 30px;
    line-height: 1.4;
    font-weight: normal;
    font-family: "SimSun", serif;
}

.article-body {
    font-size: 16px;
    line-height: 2;
    color: var(--text-main);
    text-align: justify;
}

.article-body p {
    margin-bottom: 20px;
    text-indent: 2em;
}

.article-body img {
    max-width: 100%;
    margin: 10px auto;
    display: block;
}

/* Dark Mode Styles */
html.dark .sidebar {
    background: var(--bg-card);
    border-color: var(--border-color);
}

html.dark .sidebar-menu li {
    border-bottom-color: var(--border-color);
}

html.dark .sidebar-menu li.active a,
html.dark .sidebar-menu li a:hover,
html.dark .sidebar-menu li.active span,
html.dark .sidebar-menu li span:hover {
    background-color: rgba(0, 86, 179, 0.2);
}

html.dark .right-content {
    background-color: var(--bg-card);
    border-color: var(--border-color);
}

html.dark .content-header {
    border-bottom-color: var(--border-color);
}

/* Rich text dark mode */
html.dark .rich-text-content blockquote {
    background-color: #374151;
}

html.dark .rich-text-content table th {
    background-color: #374151;
}

html.dark .rich-text-content pre,
html.dark .rich-text-content code {
    background-color: #374151;
}