:root{color-scheme:light;font-family:Inter,Microsoft YaHei,PingFang SC,Arial,sans-serif;--bg: #f6f7f9;--surface: #ffffff;--surface-2: #eef3f6;--ink: #1c2730;--muted: #62707c;--line: #d9e0e6;--brand: #0f766e;--brand-2: #2563eb;--warn: #b45309;--danger: #b91c1c;--ok: #15803d;--radius: 8px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink)}button,input,select,textarea{font:inherit}button{border:0}.login-shell{min-height:100vh;display:grid;place-items:center;padding:24px;background:#eef3f6}.login-card{width:min(420px,100%);display:grid;gap:14px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:24px;box-shadow:0 18px 60px #0f172a1f}.login-brand{display:flex;align-items:center;gap:12px;margin-bottom:4px}.login-brand h1{margin:0;font-size:19px}.login-brand p{margin:4px 0 0;color:var(--muted);font-size:13px}.login-button{width:100%}.login-error{border:1px solid 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