:root{--color-bg: #f5f7fb;--color-surface: #ffffff;--color-border: #e4e8f0;--color-text: #1a2033;--color-text-muted: #6b7486;--color-primary: #3a5ce5;--color-primary-dark: #2d47c2;--color-primary-soft: #eaefff;--color-success: #17865f;--color-success-soft: #e4f7ee;--color-danger: #d1393f;--color-danger-soft: #fbe9ea;--color-warning: #b9792a;--color-warning-soft: #fdf1e0;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 18px;--shadow-sm: 0 1px 2px rgba(20, 24, 40, .06);--shadow-md: 0 4px 16px rgba(20, 24, 40, .08);--sidebar-width: 228px}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--color-bg);color:var(--color-text);font-family:-apple-system,BlinkMacSystemFont,Segoe 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