update ui color

src/index.css

@@ -23,7 +23,7 @@
     -webkit-font-smoothing: antialiased;
     -moz-osx-font-smoothing: grayscale;
     background:
-      radial-gradient(circle at 20% -10%, #eef2ff 0%, transparent 35%),
+      radial-gradient(circle at 20% -10%, #fff1f2 0%, transparent 35%),
       radial-gradient(circle at 90% 0%, #f5f5f5 0%, transparent 28%),
       #fff;
     color: #1a1a1a;

src/pages/Home.tsx

@@ -6,7 +6,7 @@ export default function Home() {
     <div className="p-[60px] w-full min-h-[calc(100vh-3.5rem)] flex flex-col">
 
       {/* 欢迎横幅 */}
-      <div className="mb-8 flex items-center justify-between overflow-hidden relative rounded-2xl border border-magenta/15 bg-gradient-to-br from-magenta/[0.06] via-white to-white shadow-[0_4px_16px_rgba(99,102,241,0.06)] p-6">
+      <div className="mb-8 flex items-center justify-between overflow-hidden relative rounded-2xl border border-magenta/15 bg-gradient-to-br from-magenta/[0.06] via-white to-white shadow-[0_4px_16px_rgba(244,63,94,0.06)] p-6">
         <div className="absolute top-0 left-0 right-0 h-0.5 bg-gradient-to-r from-magenta via-magenta/60 to-transparent"></div>
         <div className="pt-1">
           <h2 className="text-2xl font-extrabold text-txt mb-1.5">欢迎回来，SAFe OS 团队 👋</h2>
@@ -163,7 +163,7 @@ export default function Home() {
 
       {/* 悬浮 AI 问答按钮 */}
       <button
-        className="fixed bottom-8 right-8 w-14 h-14 bg-magenta text-white rounded-2xl shadow-[0_8px_24px_rgba(99,102,241,0.35)] hover:shadow-[0_12px_32px_rgba(99,102,241,0.45)] hover:-translate-y-1 active:translate-y-0 transition-all duration-200 flex items-center justify-center text-xl z-50"
+        className="fixed bottom-8 right-8 w-14 h-14 bg-magenta text-white rounded-2xl shadow-[0_8px_24px_rgba(244,63,94,0.35)] hover:shadow-[0_12px_32px_rgba(244,63,94,0.45)] hover:-translate-y-1 active:translate-y-0 transition-all duration-200 flex items-center justify-center text-xl z-50"
         title="AI 助手"
       >
         <i className="fa-solid fa-robot"></i>

tailwind.config.js

@@ -5,11 +5,11 @@ export default {
     extend: {
       colors: {
         magenta: {
-          DEFAULT: "#6366F1",
-          50: "#EEF2FF",
-          100: "#E0E7FF",
-          600: "#6366F1",
-          700: "#4F46E5",
+          DEFAULT: "#F43F5E",
+          50: "#FFF1F2",
+          100: "#FFE4E6",
+          600: "#F43F5E",
+          700: "#BE123C",
         },
         surface: {
           DEFAULT: "#FFFFFF",