R67 A1-A6：官网风格前端 UI 刷新

client/tailwind.config.js

@@ -6,19 +6,20 @@ export default {
     extend: {
       colors: {
         primary: {
-          DEFAULT: "#18181b", // zinc-900
-          light: "#27272a", // zinc-800
-          accent: "#197fe6" // 蓝色用于少量强调
+          DEFAULT: "#00398a",
+          light: "#002e6e",
+          accent: "#13a8b8"
         },
-        secondary: "#71717a", // zinc-500
+        secondary: "#5e718d",
         background: {
-          light: "#fafafa", // zinc-50
-          dark: "#111921"
+          light: "#f5f7f8",
+          dark: "#0f1723"
         },
-        border: "#e4e4e7" // zinc-200
+        border: "#e2e8f0"
       },
       fontFamily: {
         sans: [
+          "Public Sans",
           "system-ui",
           "-apple-system",
           "BlinkMacSystemFont",
@@ -31,6 +32,7 @@ export default {
           "sans-serif"
         ],
         display: [
+          "Public Sans",
           "system-ui",
           "-apple-system",
           "BlinkMacSystemFont",