:root{color-scheme:light dark;--bg: #f0f2f5;--card: #fff;--text: #111;--muted: #666;--primary: #1677ff;--border: #e5e5e5;--danger: #cf1322;--ok: #389e0d;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}@media(prefers-color-scheme:dark){:root{--bg: #0f0f10;--card: #1c1c1e;--text: #f2f2f7;--muted: #8e8e93;--border: #2c2c2e}}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text)}.app{max-width:720px;margin:0 auto;min-height:100%;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;gap:8px;padding:12px 14px;background:var(--card);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:5}.topbar h1{font-size:17px;margin:0;flex:1}.btn{border:none;background:var(--primary);color:#fff;border-radius:10px;padding:10px 14px;font-size:14px;cursor:pointer}.btn:disabled{opacity:.5}.btn.ghost{background:transparent;color:var(--primary);border:1px solid var(--border)}.btn.danger{background:var(--danger)}.btn.block{width:100%}.stats{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;padding:12px 14px}.stat{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:10px;text-align:center}.stat .n{font-size:22px;font-weight:700;color:var(--primary)}.stat .l{font-size:12px;color:var(--muted);margin-top:2px}.filters{display:flex;flex-wrap:wrap;gap:8px;padding:0 14px 10px}.filters select,.filters input,.login input,.composer textarea,.meta input,.meta select{border:1px solid var(--border);border-radius:10px;padding:10px;background:var(--card);color:var(--text);font:inherit}.filters select,.filters input{flex:1;min-width:120px}.list{flex:1;padding:0 14px 24px;overflow:auto}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:12px;margin-bottom:10px;cursor:pointer}.card:active{opacity:.9}.row{display:flex;justify-content:space-between;gap:8px;align-items:center}.badge{font-size:11px;padding:2px 8px;border-radius:999px;background:#e6f4ff;color:#0958d9}.badge.warn{background:#fff7e6;color:#d46b08}.badge.muted{background:#f0f0f0;color:#666}.preview{color:var(--muted);font-size:13px;margin-top:6px}.vip{color:#d48806;font-size:12px;font-weight:600}.login{max-width:400px;margin:48px auto;padding:24px;background:var(--card);border-radius:16px;border:1px solid var(--border)}.login h1{margin:0 0 8px;font-size:22px}.login p{color:var(--muted);font-size:14px;margin:0 0 16px}.login label{display:block;font-size:13px;margin:12px 0 6px;color:var(--muted)}.login input{width:100%}.login .error{color:var(--danger);font-size:13px;margin:10px 0}.chat{flex:1;display:flex;flex-direction:column;min-height:0}.messages{flex:1;overflow:auto;padding:12px 14px;display:flex;flex-direction:column;gap:10px}.bubble{max-width:88%;padding:10px 12px;border-radius:14px;font-size:15px;line-height:1.4;white-space:pre-wrap;word-break:break-word}.bubble.user{align-self:flex-start;background:#e6f4ff;border:1px solid #91caff}.bubble.agent{align-self:flex-end;background:var(--primary);color:#fff}.bubble.internal{align-self:stretch;background:#fff7e6;border:1px solid #ffd591;font-size:13px}.bubble.system{align-self:center;color:var(--muted);font-size:12px;background:transparent}.time{font-size:11px;opacity:.75;margin-top:4px}.composer{border-top:1px solid var(--border);background:var(--card);padding:10px 12px calc(10px + env(safe-area-inset-bottom))}.composer .tabs{display:flex;gap:8px;margin-bottom:8px}.composer .tabs button{border:1px solid var(--border);background:var(--bg);color:var(--text);border-radius:999px;padding:6px 12px;cursor:pointer}.composer .tabs button.active{background:var(--primary);color:#fff;border-color:var(--primary)}.composer textarea{width:100%;min-height:72px;resize:vertical;margin-bottom:8px}.actions{display:flex;gap:8px;flex-wrap:wrap}.meta{padding:10px 14px;background:var(--card);border-bottom:1px solid var(--border);font-size:13px}.meta .grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:8px}.empty,.error-banner{padding:24px 14px;text-align:center;color:var(--muted)}.error-banner{color:var(--danger)}