:root{--bg:#f5f7fa;--card-bg:#fff;--border:1px solid rgba(0,0,0,.08);--shadow:0 1px 3px rgba(0,0,0,.06);--radius:12px;--radius-sm:8px;--text:#1a1b1c;--text-secondary:#6b7280;--accent:#2563eb;--accent-soft:rgba(37,99,235,.08);--up:#ea6668;--down:#52c41a;--flat:#6b7280;--spacing:16px}