feat(theme): apply CYBER STAR design system (purple palette + Megrim/Audiowide/Cinzel/Inter fonts + ambient bg)

src/app/globals.css

@@ -1,26 +1,266 @@
 @import "tailwindcss";
 
-:root {
+/* ════════════════════════════════════════════════════════════
-  --background: #ffffff;
+   CYBER STAR · 设计令牌（Tailwind v4 @theme）
-  --foreground: #171717;
+   将所有 token 暴露为 Tailwind 工具类
+   ════════════════════════════════════════════════════════════ */
+@theme {
+  /* ── 背景层级（偏紫调深色） ── */
+  --color-deepest: #08051a;
+  --color-deep: #0d0a24;
+  --color-base: #13102e;
+  --color-surface: #1a1638;
+  --color-elevated: #221d4a;
+  --color-card: #1e1840;
+
+  /* ── 主调紫 · Royal Violet ── */
+  --color-purple-100: #ede9fe;
+  --color-purple-200: #ddd6fe;
+  --color-purple-300: #c4b5fd;
+  --color-purple-400: #a78bfa;
+  --color-purple-500: #8b5cf6;
+  --color-purple-600: #7c3aed;
+  --color-purple-700: #6d28d9;
+  --color-purple-800: #5b21b6;
+
+  /* ── 辅助蓝青（仅用于点缀光效） ── */
+  --color-blue-300: #93b8ff;
+  --color-blue-500: #2d7fff;
+  --color-cyan-400: #38d9f5;
+
+  /* ── 强调色 ── */
+  --color-magenta: #d946ef;
+  --color-pink-400: #f472b6;
+  --color-pink-500: #ec4899;
+  --color-gold-400: #fcd34d;
+  --color-silver: #c4ccd8;
+  --color-bronze: #cd7f32;
+
+  /* ── 字体（变量注入自 next/font） ── */
+  --font-logo: var(--font-megrim), "Cinzel", serif;
+  --font-display: var(--font-audiowide), "Audiowide", sans-serif;
+  --font-label: var(--font-cinzel), "Cinzel", serif;
+  --font-body: var(--font-inter), -apple-system, "Source Han Sans SC",
+    "PingFang SC", "Microsoft YaHei", sans-serif;
+
+  /* ── 自定义动画 ── */
+  --animate-pulse-glow: pulse-glow 2.4s ease-in-out infinite;
+  --animate-float: float 3s ease-in-out infinite;
+  --animate-spin-slow: spin-slow 20s linear infinite;
 }
 
-@theme inline {
+/* ════════════════════════════════════════════════════════════
-  --color-background: var(--background);
+   非 Tailwind 化的 CSS 变量（复杂值 / 渐变 / 阴影）
-  --color-foreground: var(--foreground);
+   ════════════════════════════════════════════════════════════ */
-  --font-sans: var(--font-geist-sans);
+:root {
-  --font-mono: var(--font-geist-mono);
+  --grad-hero: radial-gradient(
+    ellipse at 70% 40%,
+    #2a1f5c 0%,
+    #13102e 45%,
+    #08051a 100%
+  );
+  --grad-purple: linear-gradient(
+    135deg,
+    #6d28d9 0%,
+    #8b5cf6 55%,
+    #a78bfa 100%
+  );
+  --grad-purple-deep: linear-gradient(160deg, #5b21b6 0%, #7c3aed 100%);
+  --grad-violet-glow: radial-gradient(
+    circle,
+    rgba(139, 92, 246, 0.4) 0%,
+    transparent 65%
+  );
+  --grad-card: linear-gradient(155deg, #221d4a 0%, #1a1638 100%);
+  --grad-shine: linear-gradient(
+    105deg,
+    transparent 40%,
+    rgba(255, 255, 255, 0.06) 50%,
+    transparent 60%
+  );
+
+  --shadow-purple: 0 0 24px rgba(139, 92, 246, 0.5),
+    0 0 60px rgba(139, 92, 246, 0.18);
+  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.65),
+    inset 0 1px 0 rgba(255, 255, 255, 0.06);
+  --shadow-glow: 0 0 40px rgba(196, 181, 253, 0.25);
+
+  --border-subtle: rgba(255, 255, 255, 0.08);
+  --border-default: rgba(255, 255, 255, 0.14);
+  --border-purple: rgba(139, 92, 246, 0.55);
+  --border-glow: rgba(196, 181, 253, 0.65);
 }
 
-@media (prefers-color-scheme: dark) {
+/* ════════════════════════════════════════════════════════════
-  :root {
+   全局基础样式
-    --background: #0a0a0a;
+   ════════════════════════════════════════════════════════════ */
-    --foreground: #ededed;
+html {
-  }
+  background: var(--color-deepest);
+  color: #fff;
+  font-family: var(--font-body);
+  line-height: 1.6;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
 }
 
 body {
-  background: var(--background);
+  background: var(--color-deepest);
-  color: var(--foreground);
+  min-height: 100vh;
-  font-family: Arial, Helvetica, sans-serif;
+  position: relative;
+  overflow-x: hidden;
+}
+
+/* ── 氛围装饰层 1 · 紫雾环境光 ── */
+body::before {
+  content: "";
+  position: fixed;
+  inset: 0;
+  background:
+    radial-gradient(
+      ellipse at 20% 10%,
+      rgba(139, 92, 246, 0.12) 0%,
+      transparent 40%
+    ),
+    radial-gradient(
+      ellipse at 80% 70%,
+      rgba(217, 70, 239, 0.08) 0%,
+      transparent 45%
+    );
+  pointer-events: none;
+  z-index: 0;
+}
+
+/* ── 氛围装饰层 2 · 星点粒子背景 ── */
+body::after {
+  content: "";
+  position: fixed;
+  inset: 0;
+  background-image:
+    radial-gradient(1px 1px at 23% 17%, rgba(255, 255, 255, 0.6), transparent),
+    radial-gradient(1px 1px at 67% 41%, rgba(196, 181, 253, 0.5), transparent),
+    radial-gradient(1.5px 1.5px at 89% 23%, rgba(255, 255, 255, 0.4), transparent),
+    radial-gradient(1px 1px at 12% 78%, rgba(196, 181, 253, 0.4), transparent),
+    radial-gradient(1px 1px at 45% 89%, rgba(255, 255, 255, 0.5), transparent),
+    radial-gradient(1.5px 1.5px at 78% 11%, rgba(255, 255, 255, 0.3), transparent),
+    radial-gradient(1px 1px at 33% 53%, rgba(196, 181, 253, 0.35), transparent),
+    radial-gradient(1px 1px at 91% 88%, rgba(255, 255, 255, 0.4), transparent);
+  pointer-events: none;
+  z-index: 0;
+}
+
+/* 页面内容须高于装饰层 */
+body > * {
+  position: relative;
+  z-index: 1;
+}
+
+/* ── 选中文字 ── */
+::selection {
+  background: rgba(139, 92, 246, 0.4);
+  color: #fff;
+}
+
+/* ── 自定义滚动条 ── */
+::-webkit-scrollbar {
+  width: 10px;
+  height: 10px;
+}
+::-webkit-scrollbar-track {
+  background: var(--color-deep);
+}
+::-webkit-scrollbar-thumb {
+  background: var(--color-elevated);
+  border-radius: 5px;
+  border: 2px solid var(--color-deep);
+}
+::-webkit-scrollbar-thumb:hover {
+  background: var(--color-purple-700);
+}
+
+/* ════════════════════════════════════════════════════════════
+   动画 keyframes
+   ════════════════════════════════════════════════════════════ */
+@keyframes pulse-glow {
+  0%,
+  100% {
+    box-shadow: 0 0 12px rgba(139, 92, 246, 0.45);
+  }
+  50% {
+    box-shadow:
+      0 0 32px rgba(139, 92, 246, 0.85),
+      0 0 64px rgba(139, 92, 246, 0.35);
+  }
+}
+
+@keyframes float {
+  0%,
+  100% {
+    transform: translateY(0);
+  }
+  50% {
+    transform: translateY(-6px);
+  }
+}
+
+@keyframes spin-slow {
+  from {
+    transform: rotate(0deg);
+  }
+  to {
+    transform: rotate(360deg);
+  }
+}
+
+@keyframes fade-in-up {
+  from {
+    opacity: 0;
+    transform: translateY(20px);
+  }
+  to {
+    opacity: 1;
+    transform: translateY(0);
+  }
+}
+
+@keyframes shine-sweep {
+  0% {
+    transform: translateX(-100%);
+  }
+  100% {
+    transform: translateX(100%);
+  }
+}
+
+/* ════════════════════════════════════════════════════════════
+   工具类（在 Tailwind 之外的、需要特殊渲染的）
+   ════════════════════════════════════════════════════════════ */
+.glow-text-purple {
+  text-shadow:
+    0 0 16px rgba(196, 181, 253, 0.55),
+    0 0 32px rgba(139, 92, 246, 0.35);
+}
+.glow-text-cyan {
+  text-shadow:
+    0 0 12px rgba(56, 217, 245, 0.5);
+}
+
+.bg-grad-hero {
+  background: var(--grad-hero);
+}
+.bg-grad-purple {
+  background: var(--grad-purple);
+}
+.bg-grad-card {
+  background: var(--grad-card);
+}
+
+.shadow-purple-glow {
+  box-shadow: var(--shadow-purple);
+}
+.shadow-card {
+  box-shadow: var(--shadow-card);
+}
+
+.border-purple-glow {
+  border-color: var(--border-purple);
 }

src/app/layout.tsx

@@ -1,20 +1,44 @@
 import type { Metadata } from "next";
-import { Geist, Geist_Mono } from "next/font/google";
+import { Megrim, Audiowide, Cinzel, Inter } from "next/font/google";
 import "./globals.css";
 
-const geistSans = Geist({
+const megrim = Megrim({
-  variable: "--font-geist-sans",
+  weight: "400",
   subsets: ["latin"],
+  variable: "--font-megrim",
+  display: "swap",
 });
 
-const geistMono = Geist_Mono({
+const audiowide = Audiowide({
-  variable: "--font-geist-mono",
+  weight: "400",
   subsets: ["latin"],
+  variable: "--font-audiowide",
+  display: "swap",
+});
+
+const cinzel = Cinzel({
+  weight: ["400", "500", "600", "700"],
+  subsets: ["latin"],
+  variable: "--font-cinzel",
+  display: "swap",
+});
+
+const inter = Inter({
+  subsets: ["latin"],
+  variable: "--font-inter",
+  display: "swap",
 });
 
 export const metadata: Metadata = {
-  title: "Create Next App",
+  title: "CYBER ✦ STAR · 虚拟偶像 Top12 出道企划",
-  description: "Generated by create next app",
+  description:
+    "35 位虚拟偶像候选人，由你投票决出最终出道 Top12。Cyber Star · Virtual Idol Debut Project.",
+  keywords: ["虚拟偶像", "出道", "投票", "Top12", "Cyber Star", "Virtual Idol"],
+  openGraph: {
+    title: "CYBER ✦ STAR",
+    description: "虚拟偶像 Top12 出道企划",
+    type: "website",
+  },
 };
 
 export default function RootLayout({
@@ -24,10 +48,10 @@ export default function RootLayout({
 }>) {
   return (
     <html
-      lang="en"
+      lang="zh-CN"
-      className={`${geistSans.variable} ${geistMono.variable} h-full antialiased`}
+      className={`${megrim.variable} ${audiowide.variable} ${cinzel.variable} ${inter.variable} h-full antialiased`}
     >
-      <body className="min-h-full flex flex-col">{children}</body>
+      <body className="min-h-full">{children}</body>
     </html>
   );
 }

src/app/page.tsx

@@ -1,65 +1,86 @@
-import Image from "next/image";
-
 export default function Home() {
   return (
-    <div className="flex flex-col flex-1 items-center justify-center bg-zinc-50 font-sans dark:bg-black">
+    <main className="min-h-screen flex flex-col items-center justify-center px-6 py-16">
-      <main className="flex flex-1 w-full max-w-3xl flex-col items-center justify-between py-32 px-16 bg-white dark:bg-black sm:items-start">
+      {/* Logo */}
-        <Image
+      <h1
-          className="dark:invert"
+        className="font-logo text-7xl sm:text-8xl tracking-[0.5em] uppercase glow-text-purple text-center mb-4"
-          src="/next.svg"
+        style={{ paddingLeft: "0.5em" }}
-          alt="Next.js logo"
+      >
-          width={100}
+        Cyber
-          height={20}
+        <span className="text-purple-300 mx-3 text-5xl sm:text-6xl align-middle">
-          priority
+          ✦
-        />
+        </span>
-        <div className="flex flex-col items-center gap-6 text-center sm:items-start sm:text-left">
+        Star
-          <h1 className="max-w-xs text-3xl font-semibold leading-10 tracking-tight text-black dark:text-zinc-50">
-            To get started, edit the page.tsx file.
       </h1>
-          <p className="max-w-md text-lg leading-8 text-zinc-600 dark:text-zinc-400">
+
-            Looking for a starting point or more instructions? Head over to{" "}
+      {/* Subtitle */}
-            <a
+      <p className="font-label text-sm tracking-[0.4em] uppercase text-purple-300 mb-2">
-              href="https://vercel.com/templates?framework=next.js&utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
+        Virtual Idol Debut Project
-              className="font-medium text-zinc-950 dark:text-zinc-50"
+      </p>
-            >
+      <p className="text-white/60 text-sm mb-12">
-              Templates
+        虚拟偶像 Top12 出道企划
-            </a>{" "}
+      </p>
-            or the{" "}
+
-            <a
+      {/* Status badge */}
-              href="https://nextjs.org/learn?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
+      <div className="inline-flex items-center gap-2 px-4 py-2 rounded-full bg-purple-500/10 border border-purple-500/30 mb-12">
-              className="font-medium text-zinc-950 dark:text-zinc-50"
+        <span className="w-2 h-2 rounded-full bg-purple-400 animate-pulse-glow"></span>
-            >
+        <span className="font-label text-xs tracking-widest text-purple-300 uppercase">
-              Learning
+          Phase 2 · Theme Ready
-            </a>{" "}
+        </span>
-            center.
+      </div>
+
+      {/* Theme verification swatches */}
+      <div className="grid grid-cols-3 sm:grid-cols-6 gap-3 max-w-2xl">
+        {[
+          { name: "purple-300", className: "bg-purple-300" },
+          { name: "purple-500", className: "bg-purple-500" },
+          { name: "purple-700", className: "bg-purple-700" },
+          { name: "magenta", className: "bg-magenta" },
+          { name: "pink-400", className: "bg-pink-400" },
+          { name: "cyan-400", className: "bg-cyan-400" },
+        ].map((c) => (
+          <div key={c.name} className="text-center">
+            <div
+              className={`${c.className} h-16 rounded-lg border border-white/10`}
+            />
+            <p className="text-[10px] text-white/40 mt-1 font-mono">{c.name}</p>
+          </div>
+        ))}
+      </div>
+
+      {/* Font verification */}
+      <div className="mt-12 grid grid-cols-1 sm:grid-cols-2 gap-4 max-w-2xl w-full">
+        <div className="bg-surface border border-white/10 rounded-xl p-5">
+          <p className="font-label text-[10px] tracking-widest text-purple-300 uppercase mb-2">
+            Logo Font · Megrim
+          </p>
+          <p className="font-logo text-3xl tracking-widest">Cyber Star</p>
+        </div>
+        <div className="bg-surface border border-white/10 rounded-xl p-5">
+          <p className="font-label text-[10px] tracking-widest text-purple-300 uppercase mb-2">
+            Display Font · Audiowide
+          </p>
+          <p className="font-display text-3xl tracking-wider">VOTE 2026</p>
+        </div>
+        <div className="bg-surface border border-white/10 rounded-xl p-5">
+          <p className="font-label text-[10px] tracking-widest text-purple-300 uppercase mb-2">
+            Label Font · Cinzel
+          </p>
+          <p className="font-label text-xl tracking-widest font-semibold">
+            DEBUT PROJECT
           </p>
         </div>
-        <div className="flex flex-col gap-4 text-base font-medium sm:flex-row">
+        <div className="bg-surface border border-white/10 rounded-xl p-5">
-          <a
+          <p className="font-label text-[10px] tracking-widest text-purple-300 uppercase mb-2">
-            className="flex h-12 w-full items-center justify-center gap-2 rounded-full bg-foreground px-5 text-background transition-colors hover:bg-[#383838] dark:hover:bg-[#ccc] md:w-[158px]"
+            Body Font · Inter
-            href="https://vercel.com/new?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
+          </p>
-            target="_blank"
+          <p className="font-body text-lg">虚拟偶像出道企划 · Aria</p>
-            rel="noopener noreferrer"
-          >
-            <Image
-              className="dark:invert"
-              src="/vercel.svg"
-              alt="Vercel logomark"
-              width={16}
-              height={16}
-            />
-            Deploy Now
-          </a>
-          <a
-            className="flex h-12 w-full items-center justify-center rounded-full border border-solid border-black/[.08] px-5 transition-colors hover:border-transparent hover:bg-black/[.04] dark:border-white/[.145] dark:hover:bg-[#1a1a1a] md:w-[158px]"
-            href="https://nextjs.org/docs?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-            target="_blank"
-            rel="noopener noreferrer"
-          >
-            Documentation
-          </a>
         </div>
+      </div>
+
+      <p className="mt-16 text-white/40 text-xs font-mono">
+        Phase 3 → Layout + Navigation 即将开始
+      </p>
     </main>
-    </div>
   );
 }