:root{
  --rg-green:#057a3d;
  --rg-dark:#063d25;
  --rg-soft:#f4fbf7;
  --rg-line:#d9eadf;
  --rg-brown:#8a572a;
  --rg-text:#14271d;
  --rg-muted:#66786f;
}
.rg-ll-body{margin:0;background:#f7fbf8;color:var(--rg-text);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
.rg-ll-page{max-width:1480px;margin:0 auto;padding:18px}
.rg-ll-topbar{display:flex;justify-content:space-between;align-items:center;gap:18px;background:white;border:1px solid var(--rg-line);border-radius:18px;padding:18px 22px;margin-bottom:18px;box-shadow:0 5px 18px rgba(6,61,37,.06)}
.rg-ll-brand{font-size:24px;font-weight:900;color:var(--rg-dark)}
.rg-ll-subtitle{font-size:14px;color:var(--rg-muted);margin-top:4px}
.rg-ll-actions{display:flex;gap:10px;flex-wrap:wrap}
.rg-ll-btn{border:1px solid var(--rg-line);border-radius:12px;padding:10px 15px;font-weight:800;text-decoration:none;cursor:pointer;background:white;color:var(--rg-dark);display:inline-flex;align-items:center;justify-content:center}
.rg-ll-btn.primary{background:var(--rg-green);border-color:var(--rg-green);color:white}
.rg-ll-layout{display:grid;grid-template-columns:minmax(0,1fr)390px;gap:18px;align-items:start}
.rg-ll-card{background:white;border:1px solid var(--rg-line);border-radius:18px;padding:22px;box-shadow:0 5px 18px rgba(6,61,37,.06)}
.rg-ll-card h1{margin:0 0 10px;color:var(--rg-dark);font-size:30px}
.rg-ll-meta{background:var(--rg-soft);border:1px solid var(--rg-line);border-radius:14px;padding:12px;color:var(--rg-muted);margin:12px 0 18px;font-size:14px}
.rg-ll-input{width:100%;box-sizing:border-box;border:1px solid var(--rg-line);border-radius:12px;padding:13px 14px;font-size:15px;margin:12px 0 18px}
.rg-article{border:1px solid var(--rg-line);border-radius:14px;padding:16px;margin-bottom:14px;background:white}
.rg-article h2{font-size:19px;color:var(--rg-dark);margin:0 0 10px}
.rg-article-text{white-space:pre-wrap;line-height:1.56}
.rg-citation{margin-top:12px;background:var(--rg-soft);border:1px solid var(--rg-line);border-radius:10px;padding:8px;font-size:12px;color:var(--rg-muted)}
.rg-ai-panel{background:white;border:2px solid var(--rg-brown);border-radius:18px;padding:18px;box-shadow:0 5px 18px rgba(89,51,20,.10);position:sticky;top:14px}
.rg-ai-panel.rg-closed{display:none!important}
.rg-ai-header{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;border-bottom:1px solid #ead8c7;padding-bottom:12px;margin-bottom:14px}
.rg-ai-header h2{margin:0;color:#5a3218;font-size:21px}
.rg-close-panel{width:38px;height:38px;border:1px solid #ead8c7;background:white;color:#5a3218;border-radius:10px;font-size:26px;line-height:1;cursor:pointer}
.rg-ai-note{background:#fff8eb;border-left:5px solid #bf7a00;border-radius:12px;padding:12px;color:#4b2a12;margin-bottom:14px}
.rg-textarea{width:100%;box-sizing:border-box;min-height:110px;border:1px solid #ead8c7;border-radius:12px;padding:12px;resize:vertical;margin:10px 0}
.rg-small{font-size:12px;color:var(--rg-muted)}
.rg-table{width:100%;border-collapse:collapse;margin-top:14px}
.rg-table th,.rg-table td{border-bottom:1px solid var(--rg-line);padding:10px;text-align:left;vertical-align:top;font-size:13px}
.rg-table th{background:var(--rg-soft);color:var(--rg-dark)}
.rg-graph-svg{width:100%;min-height:520px;border:1px solid var(--rg-line);border-radius:16px;background:#fbfdfb}
.rg-node{cursor:pointer}
.rg-node circle{fill:#e8f5ee;stroke:var(--rg-green);stroke-width:2}
.rg-node text{font-size:11px;fill:var(--rg-dark);pointer-events:none}
.rg-edge{stroke:#9ab7a6;stroke-width:1.4;opacity:.7}
@media(max-width:1100px){
  .rg-ll-layout{grid-template-columns:1fr}
  .rg-ai-panel{position:static}
  .rg-ll-topbar{flex-direction:column;align-items:flex-start}
}