:root{--ink:#141414;--muted:#7a746a;--line:#e3ddd0;--bg:#faf8f3;--card:#fff;--blue:#1f3a93;--ok:#2e7d32;--warn:#b26a00;--bad:#b3261e}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,Apple SD Gothic Neo,Malgun Gothic,sans-serif;color:var(--ink);background:var(--bg);font-size:14px;line-height:1.55}header{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;border-bottom:1px solid var(--line);background:var(--card)}header b{letter-spacing:.02em}main{max-width:1080px;margin:0 auto;padding:24px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));grid-gap:16px;gap:16px}.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px 18px}.card h3{margin:0 0 8px;font-size:13px;color:var(--muted);font-weight:600}.big{font-size:28px;font-weight:700}.pill{display:inline-block;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:600}.ok{background:#e8f5e9;color:var(--ok)}.warn{background:#fff4e0;color:var(--warn)}.bad{background:#fdecea;color:var(--bad)}a.btn,button.btn{display:inline-block;background:var(--ink);color:#fff;border:0;border-radius:8px;padding:9px 14px;font-size:14px;text-decoration:none;cursor:pointer}a.link{color:var(--blue);text-decoration:none}input{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:14px}.muted{color:var(--muted)}.small{font-size:12px}ul.plain{list-style:none;padding:0;margin:0}ul.plain li{padding:6px 0;border-bottom:1px solid var(--line)}.layout{display:grid;grid-template-columns:minmax(0,1fr) 420px;min-height:calc(100vh - 53px)}.layout>main{max-width:none}@media (max-width:1000px){.layout{grid-template-columns:1fr}.chat{position:static;height:auto}}.chat{border-left:1px solid var(--line);background:var(--card);display:flex;flex-direction:column;height:calc(100vh - 53px);position:-webkit-sticky;position:sticky;top:0}.chat-head{padding:12px 16px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}.chat-body{flex:1 1;overflow:auto;padding:12px 16px}.chat-input{border-top:1px solid var(--line);padding:10px;display:flex;gap:8px;align-items:flex-end}.chat-input textarea{flex:1 1;padding:8px 10px;border:1px solid var(--line);border-radius:8px;font:inherit;resize:none}.bubble{margin:8px 0;padding:10px 12px;border-radius:10px;font-size:13px}.bubble.user{background:#efe9dc;margin-left:40px}.bubble.assistant{background:#f7f5f0;margin-right:10px}.chip{display:inline-block;margin:4px 6px 0 0;padding:5px 10px;border:1px solid var(--line);border-radius:999px;background:#fff;font-size:12px;cursor:pointer}button.btn:disabled{opacity:.5}table.mini{width:100%;border-collapse:collapse;font-size:12px}table.mini td,table.mini th{border-bottom:1px solid var(--line);padding:4px 6px;text-align:left}