:root{--bg:#f3f5f8;--card:#fff;--text:#1f2937;--muted:#6b7280;--line:#e5e7eb;--accent:#0f766e}*{box-sizing:border-box}body{background:radial-gradient(circle at top right, #dff7f4, var(--bg));color:var(--text);margin:0;font-family:Segoe UI,sans-serif}.container{max-width:1100px;margin:32px auto;padding:0 16px}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:0 8px 20px #0f172a0d}h1,h2,h3{margin-top:0}table{border-collapse:collapse;width:100%}th,td{text-align:left;border-bottom:1px solid var(--line);padding:10px 6px}th{color:var(--muted);font-size:13px}.meta{color:var(--muted)}.grid{grid-template-columns:1fr;gap:16px;display:grid}@media (min-width:900px){.grid{grid-template-columns:1.1fr .9fr}}