:root{--bg: #f5f6f8;--panel: #ffffff;--border: #dfe3e8;--text: #1c2530;--muted: #6b7785;--accent: #2456d6;--ok: #1d8a4b;--warn: #b07a16;--bad: #c0392b;--info: #2873b3}*{box-sizing:border-box}body{margin:0;font:14px/1.45 -apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}h1{font-size:18px}h2{font-size:20px;margin:0 0 16px}h3{font-size:15px;margin:20px 0 8px}a{color:var(--accent);text-decoration:none}.layout{display:flex;min-height:100vh}.sidebar{width:200px;background:#14213a;color:#e8ecf4;padding:16px 12px;display:flex;flex-direction:column;gap:4px}.sidebar h1{color:#fff;margin:0 4px 16px}.sidebar a{color:#aeb9d1;padding:8px 10px;border-radius:6px}.sidebar a.active{background:#243a63;color:#fff}.sidebar .spacer{flex:1}.sidebar .me{display:flex;gap:8px;align-items:center;padding:8px 10px}.content{flex:1;padding:24px 28px;max-width:1200px}.card{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:16px}.cards{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:8px}.counter{min-width:110px;text-align:center}.counter .num{font-size:26px;font-weight:600}table{width:100%;border-collapse:collapse;background:var(--panel)}th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--border)}th{color:var(--muted);font-weight:500}.badge{display:inline-block;padding:2px 8px;border-radius:10px;font-size:12px;color:#fff;background:var(--muted)}.badge.ok{background:var(--ok)}.badge.warn{background:var(--warn)}.badge.bad{background:var(--bad)}.badge.info{background:var(--info)}.badge.muted{background:var(--muted);color:#fff}.banner{padding:10px 14px;border-radius:6px;margin-bottom:16px}.banner.ok{background:#e6f4ea;border:1px solid #b7dfc3;color:#1d5c33}.banner.warn{background:#fdf3dc;border:1px solid #ecd9a6;color:#7a5b10}.error{color:var(--bad);margin:8px 0}.muted{color:var(--muted)}button{font:inherit;padding:7px 14px;border:1px solid var(--border);border-radius:6px;background:var(--panel);cursor:pointer}button.primary{background:var(--accent);border-color:var(--accent);color:#fff}button:disabled{opacity:.5;cursor:default}input,select{font:inherit;padding:7px 10px;border:1px solid var(--border);border-radius:6px;background:#fff;width:100%}label{display:block;margin-bottom:10px;color:var(--muted)}label input,label select{margin-top:4px;color:var(--text)}form.inline{display:flex;gap:10px;align-items:end}form.inline label{margin:0}.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center}.login-card{width:320px}.login-card button{width:100%;margin-top:8px}.toolbar{display:flex;gap:10px;margin:0 0 14px;flex-wrap:wrap;align-items:end}.chat{display:flex;flex-direction:column;gap:8px;max-width:720px}.bubble{padding:8px 12px;border-radius:12px;max-width:75%}.bubble.left{background:#e9eef6;align-self:flex-start}.bubble.right{background:#d8e6d3;align-self:flex-end}.bubble .ts{display:block;font-size:11px;color:var(--muted)}.decision{align-self:center;font-size:12px;color:var(--muted);border-style:dashed;padding:6px 10px}.sysline{align-self:center;font-size:12px;color:var(--muted)}.qcard{margin-bottom:10px}.qcard .qnum{color:var(--muted);font-size:12px}.qcard .answer{font-weight:600;margin:4px 0}.qcard .code{color:var(--muted);font-weight:400}.qcard blockquote{margin:6px 0;color:var(--muted);font-style:italic}.qcard .meta{font-size:12px;color:var(--muted)}.chips{display:flex;gap:6px;flex-wrap:wrap;margin:4px 0}.chip{background:#eef1f6;border:1px solid var(--border);border-radius:10px;padding:2px 8px;font-size:12px}.pagination{display:flex;gap:8px;align-items:center;margin-top:12px}audio{width:100%;margin:10px 0}pre{background:#f0f2f5;padding:10px;border-radius:6px;overflow:auto}