/* 湖水青 —— 偏靛青以避開成功綠，ΔE 36.7／37.2 */
:root[data-theme="teal"]{
  --c-brand-050:#DFF0F3; --c-brand-600:#12707E; --c-brand-700:#0D5C68; --c-on-brand:#FFFFFF;
}
:root[data-theme="teal"][data-mode="dark"]{
  --c-brand-050:#0F2B31; --c-brand-600:#45B2C4; --c-brand-700:#68C6D5; --c-on-brand:#08191D;
}