build: 📦 移除color依赖，自定义工具类

src/utils/theme.ts

@@ -0,0 +1,52 @@
+// 辅助函数：将十六进制颜色转换为 RGB
+function hexToRgb(hex: string): [number, number, number] {
+  const bigint = parseInt(hex.slice(1), 16);
+  return [(bigint >> 16) & 255, (bigint >> 8) & 255, bigint & 255];
+}
+
+// 辅助函数：将 RGB 转换为十六进制颜色
+function rgbToHex(r: number, g: number, b: number): string {
+  return `#${((1 << 24) + (r << 16) + (g << 8) + b).toString(16).slice(1)}`;
+}
+
+// 辅助函数：调整颜色亮度
+function adjustBrightness(hex: string, factor: number): string {
+  const rgb = hexToRgb(hex);
+  const newRgb = rgb.map((val) =>
+    Math.max(0, Math.min(255, Math.round(val + (255 - val) * factor)))
+  ) as [number, number, number];
+  return rgbToHex(...newRgb);
+}
+
+export function generateThemeColors(primary: string) {
+  const colors: Record<string, string> = {
+    primary,
+  };
+
+  // 生成浅色变体
+  for (let i = 1; i <= 9; i++) {
+    const factor = i * 0.1;
+    colors[`primary-light-${i}`] = adjustBrightness(primary, factor);
+  }
+
+  // 生成深色变体
+  colors["primary-dark-2"] = adjustBrightness(primary, -0.2);
+
+  return colors;
+}
+
+export function applyTheme(colors: Record<string, string>) {
+  const el = document.documentElement;
+
+  Object.entries(colors).forEach(([key, value]) => {
+    el.style.setProperty(`--el-color-${key}`, value);
+  });
+}
+
+export function toggleDarkMode(isDark: boolean) {
+  if (isDark) {
+    document.documentElement.classList.add("dark");
+  } else {
+    document.documentElement.classList.remove("dark");
+  }
+}