:root{--bg:#f4f6f8;--panel:#ffffff;--panel-soft:#f9fafb;--line:#d8dee8;--line-strong:#b8c1d1;--text:#172033;--muted:#667085;--brand:#1f6feb;--brand-dark:#174ea6;--teal:#0e7c66;--amber:#b54708;--red:#b42318;--green:#067647;--violet:#6840c6}*{box-sizing:border-box}body,html{min-height:100%;margin:0;background:var(--bg);color:var(--text);font-family:Arial,PingFang SC,Microsoft YaHei,sans-serif}button,input,select{font:inherit}button{min-height:36px;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--text);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:7px;white-space:nowrap}button:disabled{cursor:not-allowed;opacity:.62}.shell{display:grid;grid-template-columns:252px 1fr;min-height:100vh}.sidebar{border-right:1px solid var(--line);background:#fff;padding:18px 14px}.brand{display:flex;align-items:center;gap:10px;min-height:60px;padding:9px;border:1px solid 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input{border:0;padding:0;background:transparent}.iconButton{width:30px;min-height:30px;height:30px;border-radius:6px;color:var(--muted)}.iconButton:hover{background:#eef1f6;color:var(--brand-dark)}.loginOptions{display:flex;justify-content:flex-start;gap:12px;align-items:center;color:var(--muted);font-size:13px}.loginOptions label{min-width:0;display:inline-flex;align-items:center;gap:7px}.loginOptions input{width:16px;height:16px}.loginSubmit{width:100%;min-height:42px}.loginStatus{min-width:0;display:grid;grid-template-columns:10px minmax(0,1fr);grid-column-gap:8px;column-gap:8px;align-items:center;min-height:38px;padding:8px 10px;border:1px solid var(--line);border-radius:6px;background:var(--panel-soft)}.loginStatus strong{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px}.loginStatus.success{border-color:#abefc6;background:#ecfdf3}.loginStatus.error{border-color:#f3b8b5;background:#fff0ee}@media 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