:root{--bg:#f6f7f9;--card:#fff;--text:#1f2328;--muted:#5f6b7a;--line:#d8dde3;--accent:#1f5fbf;--ok:#1d7a3a;--warn:#8a5a00;--error:#b42318;color:var(--text);background:var(--bg);font-family:system-ui,-apple-system,Segoe UI,Hiragino Sans,Noto Sans JP,sans-serif}body{margin:0}button{font:inherit;border:1px solid var(--accent);background:var(--accent);color:#fff;cursor:pointer;border-radius:6px;margin:4px 8px 4px 0;padding:6px 14px}button:disabled{opacity:.5;cursor:default}button.link{color:var(--accent);background:0 0;border:none;padding:4px 6px}button.danger,button.link.danger{color:var(--error)}button.danger{border-color:var(--error);background:#fff}input,select,textarea{font:inherit;border:1px solid var(--line);box-sizing:border-box;background:#fff;border-radius:6px;width:100%;max-width:640px;margin-top:4px;padding:6px 8px;display:block}label{margin:12px 0;display:block}label.check{align-items:center;gap:8px;display:flex}label.check input{width:auto;margin:0}.layout{grid-template-rows:auto 1fr;grid-template-columns:220px 1fr;min-height:100vh;display:grid}header{border-bottom:1px solid var(--line);background:#fff;grid-column:1/3;justify-content:space-between;align-items:center;padding:10px 20px;display:flex}.who{color:var(--muted)}nav{border-right:1px solid var(--line);background:#fff;padding:12px 8px}nav button{text-align:left;width:100%;color:var(--text);background:0 0;border:none;margin:2px 0;display:block}nav button.active{color:var(--accent);background:#e8f0fb;font-weight:600}main{max-width:1200px;padding:20px}main.center{flex-direction:column;justify-content:center;align-items:center;min-height:80vh;display:flex}.card{background:var(--card);border:1px solid var(--line);border-radius:8px;margin-bottom:16px;padding:16px 20px}.card h2{margin:0 0 8px;font-size:1.1rem}.note,.muted{color:var(--muted);font-size:.92rem}.warn{color:var(--warn)}.info{color:var(--accent)}.notice{white-space:pre-wrap;border-radius:6px;padding:8px 12px}.notice.ok{color:var(--ok);background:#e7f5ec}.notice.error{color:var(--error);background:#fdecea}.notice.info{color:var(--accent);background:#e8f0fb}table{border-collapse:collapse;width:100%;margin:8px 0}th,td{text-align:left;border-bottom:1px solid var(--line);vertical-align:top;padding:6px 8px}td select{width:auto;margin:0}.kv{grid-template-columns:160px 1fr;gap:6px 12px;display:grid}.kv dt{color:var(--muted)}.kv dd{margin:0}.row{align-items:center;gap:8px;display:flex}.row input{margin:4px 0}.actions{flex-wrap:wrap;align-items:center;gap:4px;display:flex}.code,.error-text{white-space:pre-wrap;word-break:break-all;background:#f3f4f6;border-radius:6px;padding:10px}.error-text{color:var(--error)}.status-box{border:1px dashed var(--line);border-radius:6px;margin-top:12px;padding:10px}ul.plain{padding:0;list-style:none}.split{grid-template-columns:minmax(0,1fr) minmax(0,420px);align-items:start;gap:16px;display:grid}.chat{flex-direction:column;gap:8px;min-height:200px;max-height:60vh;display:flex;overflow-y:auto}.bubble{white-space:pre-wrap;border-radius:10px;max-width:90%;padding:8px 12px}.bubble.user{background:#e8f0fb;align-self:flex-end}.bubble.assistant{background:#f3f4f6;align-self:flex-start}@media (width<=900px){.layout{grid-template-columns:1fr}header{grid-column:1}nav{border-right:none;border-bottom:1px solid var(--line);flex-wrap:wrap;display:flex}nav button{width:auto}.split{grid-template-columns:1fr}}.card.narrow{box-sizing:border-box;width:min(460px,100vw - 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