:root{--bg: #030712;--surface: rgba(15, 23, 42, .85);--border: rgba(148, 163, 184, .25);--muted: #94a3b8;--text: #e2e8f0;--accent-a: #22d3ee;--accent-b: #fb7185;--radius: 16px;--maxw: 1100px}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%}body{background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.55}.site-header{padding:2rem 1.5rem 1.5rem;border-bottom:1px solid var(--border);background:linear-gradient(180deg,rgba(15,23,42,.6),transparent)}.site-header-inner{max-width:var(--maxw);margin:0 auto}.site-title{font-size:clamp(1.5rem,4vw,2rem);font-weight:700;letter-spacing:-.02em;margin:0 0 .5rem}.site-lead{margin:0;color:var(--muted);font-size:1.05rem;max-width:42em}.site-disclaimer{margin:1rem 0 0;padding:.65rem .9rem;max-width:48em;font-size:.9rem;line-height:1.45;color:#cbd5e1;background:#fb718514;border:1px solid rgba(251,113,133,.25);border-radius:10px}main{max-width:var(--maxw);margin:0 auto;padding:2rem 1.5rem 4rem}.section{margin-bottom:3.5rem}.section-legend{padding-bottom:.5rem;border-bottom:1px solid var(--border)}.demo-legend-list{margin:0;padding-left:1.15rem;max-width:52em;color:var(--muted);font-size:.95rem}.demo-legend-list li{margin-bottom:.65rem}.demo-legend-list li:last-child{margin-bottom:0}.demo-legend-list strong{color:var(--text);font-weight:600}.section-label{font-size:.75rem;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);margin:0 0 .5rem}.section-title{font-size:1.35rem;font-weight:600;margin:0 0 1rem}.section-desc{margin:0 0 1rem;color:var(--muted);max-width:52em}.section-comment{margin:1rem 0 0;padding:.75rem 1rem;border-left:3px solid var(--accent-a);background:#22d3ee0f;border-radius:0 8px 8px 0;font-size:.95rem;color:#cbd5e1}.demo-frame{border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);overflow:hidden;box-shadow:0 24px 48px #00000059}.demo-frame canvas{display:block;width:100%;height:auto;vertical-align:middle}.demo-hint{margin-top:.75rem;font-size:.875rem;color:var(--muted)}.site-footer{padding:2rem 1.5rem;border-top:1px solid var(--border);text-align:center;color:var(--muted);font-size:.875rem}.site-footer-line{margin:0 0 .5rem;max-width:40rem;margin-left:auto;margin-right:auto}.site-footer-line:last-child{margin-bottom:0}.site-footer-muted{font-size:.8125rem;opacity:.9}