:root{--bg:#f5f6f8;--card:#fff;--line:#e4e7ec;--text:#1f2329;--muted:#8a919e;--brand:#2b7de9}*{box-sizing:border-box}body{color:var(--text);background:var(--bg);margin:0;font-family:-apple-system,PingFang SC,Microsoft YaHei,sans-serif;font-size:14px}button{cursor:pointer;font-family:inherit}textarea{font-family:inherit;font-size:13px}.empty{text-align:center;color:var(--muted);padding:40px 16px}.side{background:var(--bg);min-height:100vh}.devbar{color:#a15c00;background:#fff7e6;border-bottom:1px solid #ffe1a8;padding:6px 12px;font-size:12px}.searchbar{background:var(--card);border-bottom:1px solid var(--line);align-items:center;gap:6px;padding:8px 10px;display:flex}.search{border:1px solid var(--line);background:#f6f7f9;border-radius:8px;flex:1;padding:7px 10px;font-size:13px}.clr{color:var(--muted);background:0 0;border:none;padding:4px 8px;font-size:13px}.qt{align-items:center;gap:8px;min-width:0;display:flex}.qgroup{color:var(--muted);background:#f1f2f4;border-radius:9px;flex:none;padding:1px 7px;font-size:11px}.tabs{background:var(--card);border-bottom:1px solid var(--line);gap:4px;padding:8px 10px;display:flex;position:sticky;top:0;overflow-x:auto}.tab{color:var(--muted);white-space:nowrap;background:0 0;border:none;border-radius:14px;flex:none;padding:6px 12px;font-size:13px}.tab.active{color:var(--brand);background:#eaf3fe}.qalist{flex-direction:column;gap:8px;padding:8px 10px;display:flex}.qa{background:var(--card);border:.5px solid var(--line);border-radius:10px;overflow:hidden}.qa.open{border-color:var(--brand)}.qa-title{width:100%;color:var(--text);text-align:left;background:0 0;border:none;justify-content:space-between;align-items:center;padding:12px 14px;font-size:14px;display:flex}.chev{color:var(--muted)}.qa-body{flex-direction:column;gap:10px;padding:4px 12px 12px;display:flex}.item{border-top:1px solid #f0f1f3;flex-direction:column;gap:6px;padding-top:8px;display:flex}.item:first-child{border-top:none}.item-text{border:1px solid var(--line);resize:vertical;border-radius:6px;width:100%;padding:8px}.item-card{border:.5px solid var(--line);background:#fafbfc;border-radius:8px;gap:8px;padding:8px 10px;display:flex}.ic-text{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.ic-text strong{font-size:13px}.ic-text em{color:var(--muted);font-size:12px;font-style:normal}.ic-thumb{border:.5px solid var(--line);width:40px;height:40px;color:var(--muted);background:#fff;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;font-size:12px;display:flex;overflow:hidden}.ic-thumb img{object-fit:cover;width:100%;height:100%}.item-file{color:var(--text);border:.5px solid var(--line);background:#f5f7fa;border-radius:6px;padding:8px 10px;font-size:13px}.send{background:var(--brand);color:#fff;border:none;border-radius:6px;align-self:flex-end;padding:5px 16px;font-size:13px}.send:active{opacity:.85}.sendall{border:1px solid var(--brand);color:var(--brand);background:0 0;border-radius:6px;padding:6px;font-size:13px}.toast{color:#fff;background:#000c;border-radius:8px;padding:8px 16px;font-size:13px;position:fixed;bottom:24px;left:50%;transform:translate(-50%)}