:root{--primary:#b1976b;--primary-dark:#8f7551;--primary-light:#c9b08a;--text-dark:#1e293b;--text-muted:#64748b;--text-light:#94a3b8;--border:#e2e8f0;--surface:#fff;--background:#f8fafc;--radius:12px;--shadow-sm:0 2px 8px #0000000a;--shadow-md:0 4px 16px #00000014;--shadow-lg:0 8px 24px #0000001f;--gradient-start:#fdfbf7;--gradient-end:#f5efe6;--transition:all .3s ease}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;font-size:16px}body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;background:var(--background);color:var(--text-dark);line-height:1.6;overflow-x:hidden}.page-wrap{max-width:1200px;margin:0 auto;padding:2.5rem 1.5rem 4rem}.page-header{padding-bottom: 0rem!important;background:linear-gradient(135deg,var(--gradient-start) 0%,var(--gradient-end) 100%);border:1px solid var(--border);border-radius:var(--radius);padding:2rem 1.75rem;margin-bottom:2rem;box-shadow:var(--shadow-sm)}.page-header h1{font-size:clamp(1.75rem,4vw,2.25rem);font-weight:700;color:var(--text-dark);margin-bottom:.75rem;letter-spacing:-.02em}.lead{font-size:1.05rem;color:var(--text-muted);margin-bottom:1rem;line-height:1.7}.meta-line{display:flex;flex-wrap:wrap;align-items:center;gap:1rem;font-size:.9rem;color:var(--text-light)}.meta-line span{display:flex;align-items:center;gap:.35rem}.meta-dot{width:4px;height:4px;background:var(--text-light);border-radius:50%;display:inline-block}.content{display:grid;grid-template-columns:1fr;gap:2rem;align-items:start}@media (min-width: 992px){.content{grid-template-columns:280px 1fr}}.toc{position:sticky;top:1.5rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;box-shadow:var(--shadow-md);max-height:calc(100vh - 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