:root {
    --bg: #f5f7fb;
    --card: #ffffff;
    --text: #1f2937;
    --muted: #6b7280;
    --border: #e5e7eb;
    --primary: #2563eb;
}

body {
    font-family: "Segoe UI", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    margin: 0;
    padding: 0;
}

.article-container {
    max-width: 900px;
    margin: 32px auto;
    padding: 28px 36px;
    background: var(--card);
    border-radius: 12px;
    box-shadow: 0 6px 22px rgba(15, 23, 42, 0.08);
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    margin: 20px 0 10px;
    color: #111;
}

p {
    margin: 10px 0;
}

ul, ol {
    margin: 10px 0 10px 24px;
}

li {
    margin: 6px 0;
}

code {
    background: #f1f3f5;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: Consolas, "Courier New", monospace;
}

.code-block {
    margin: 14px 0;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    background: #f9fafb;
    padding: 6px 10px;
}

.code-block summary {
    cursor: pointer;
    font-weight: 600;
}

.code-block pre {
    margin: 10px 0 4px;
    background: #0f172a;
    color: #e2e8f0;
    padding: 12px;
    border-radius: 6px;
    overflow: auto;
    font-size: 13px;
    line-height: 1.5;
}

.code-block code {
    background: transparent;
    padding: 0;
    color: inherit;
    font-family: Consolas, "Courier New", monospace;
}

a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.article-error,
.article-empty {
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: #f8fafc;
}

.article-error {
    border-color: #fecaca;
    background: #fef2f2;
    color: #b91c1c;
}

.md-table {
    width: 100%;
    border-collapse: collapse;
    margin: 14px 0;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(15, 23, 42, 0.05);
}

.md-table th,
.md-table td {
    border-bottom: 1px solid var(--border);
    padding: 10px 12px;
    text-align: left;
    vertical-align: top;
}

.md-table th {
    background: #f3f4f6;
    color: #111827;
    font-weight: 600;
}

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

.article-top-image {
    margin: 0 0 24px 0;
    max-width: 100%;
    box-sizing: border-box;
}

.article-top-image img {
    max-width: 100%;
    height: auto;
    display: block;
    box-sizing: border-box;
    object-fit: contain;
}