:root {
  --th-base: #ffffff;
  --th-sur: #f9fafb;
  --th-sur2: #f3f4f6;
  --th-sur3: #e5e7eb;
  --th-txt: #111827;
  --th-mut: #4b5563;
  --th-bor: #e5e7eb;
}