:root {
  /* ==================== 品牌主色 (Primary) ==================== */
  --brand-primary: #00aa9a;
  --brand-primary-hover: #00665c;
  --brand-primary-50: #e6f7f5;
  --brand-primary-100: #b3ebe4;
  --brand-primary-200: #80dfd3;
  --brand-primary-300: #4dd3c2;
  --brand-primary-400: #1ac7b1;
  --brand-primary-500: #00aa9a;
  --brand-primary-600: #00887b;
  --brand-primary-700: #00665c;
  --brand-primary-800: #00443d;
  --brand-primary-900: #00332b;
  --brand-primary-950: #002620;

  /* ==================== 品牌藍色 (Blue) ==================== */
  --brand-blue: #4682b4;
  --brand-blue-hover: #2b5f8a;
  --brand-blue-50: #edf3f9;
  --brand-blue-100: #d4e3f0;
  --brand-blue-200: #a9c7e1;
  --brand-blue-300: #7eabd2;
  --brand-blue-400: #6296c3;
  --brand-blue-500: #4682b4;
  --brand-blue-600: #386a93;
  --brand-blue-700: #2b5f8a;
  --brand-blue-800: #1f4264;
  --brand-blue-900: #152e46;
  --brand-blue-950: #0d1e2e;

  /* ==================== 品牌青色 (Cyan) ==================== */
  --brand-cyan: #56b4c7;
  --brand-cyan-hover: #2d7b8b;
  --brand-cyan-50: #dff3f6;
  --brand-cyan-100: #c5ebf0;
  --brand-cyan-200: #a1dce6;
  --brand-cyan-300: #7bcedb;
  --brand-cyan-400: #62bfcf;
  --brand-cyan-500: #56b4c7;
  --brand-cyan-600: #3b9bb0;
  --brand-cyan-700: #2d7b8b;
  --brand-cyan-800: #205e69;
  --brand-cyan-900: #15444b;
  --brand-cyan-950: #10353a;

  /* ==================== 品牌萊姆色 (Lime) ==================== */
  --brand-lime: #a7c34e;
  --brand-lime-hover: #697c31;
  --brand-lime-50: #f4f8e8;
  --brand-lime-100: #e9f2d1;
  --brand-lime-200: #d5e6a4;
  --brand-lime-300: #c0d977;
  --brand-lime-400: #b4ce5f;
  --brand-lime-500: #a7c34e;
  --brand-lime-600: #859e3e;
  --brand-lime-700: #697c31;
  --brand-lime-800: #505e25;
  --brand-lime-900: #39431a;
  --brand-lime-950: #2d3515;
}