diff --git a/scripts/audit/darkmode-selector-verify.mjs b/scripts/audit/darkmode-selector-verify.mjs
new file mode 100644
index 0000000..16b96da
--- /dev/null
+++ b/scripts/audit/darkmode-selector-verify.mjs
@@ -0,0 +1,42 @@
+// 验证 darkMode selector 配置生效
+import { chromium } from 'playwright';
+const browser = await chromium.launch();
+
+async function probe(theme) {
+  const ctx = await browser.newContext({ viewport: { width: 1280, height: 800 } });
+  const page = await ctx.newPage();
+  // 先建立 origin
+  await page.goto('http://127.0.0.1:3000/', { waitUntil: 'domcontentloaded' });
+  await page.evaluate((t) => {
+    if (t === 'dark') localStorage.setItem('novalon-theme', 'dark');
+    else localStorage.removeItem('novalon-theme');
+  }, theme);
+  // 重新加载让内联脚本读 localStorage 设置 data-theme
+  await page.goto('http://127.0.0.1:3000/', { waitUntil: 'networkidle' });
+  await page.waitForTimeout(1500);
+  const out = await page.evaluate(() => {
+    const probe = document.createElement('div');
+    probe.className = 'bg-white dark:bg-blue-500';
+    probe.style.cssText = 'position:fixed;top:-9999px;width:50px;height:50px;';
+    document.body.appendChild(probe);
+    const bg = getComputedStyle(probe).backgroundColor;
+    const htmlTheme = document.documentElement.getAttribute('data-theme');
+    probe.remove();
+    return { bg, htmlTheme };
+  });
+  await ctx.close();
+  return out;
+}
+
+const light = await probe('light');
+const dark = await probe('dark');
+await browser.close();
+
+console.log('light:', JSON.stringify(light));
+console.log('dark :', JSON.stringify(dark));
+
+const lightOk = light.bg === 'rgb(255, 255, 255)' && light.htmlTheme !== 'dark';
+const darkOk = dark.bg === 'rgb(59, 130, 246)' && dark.htmlTheme === 'dark';
+console.log(`\n[assert] light bg=white, no data-theme: ${lightOk}`);
+console.log(`[assert] dark  bg=blue, data-theme=dark: ${darkOk}`);
+console.log(`[result] ${lightOk && darkOk ? 'PASS' : 'FAIL'}`);
\ No newline at end of file
diff --git a/scripts/audit/home-cta-verify.mjs b/scripts/audit/home-cta-verify.mjs
new file mode 100644
index 0000000..c355841
--- /dev/null
+++ b/scripts/audit/home-cta-verify.mjs
@@ -0,0 +1,25 @@
+// 验证 home 本地 CTASection 实际渲染（含 BrandStamp 的是 src/components/sections/cta-section.tsx）
+import { chromium } from 'playwright';
+const browser = await chromium.launch();
+const page = await browser.newPage({ viewport: { width: 1280, height: 800 } });
+await page.goto('http://127.0.0.1:3000/', { waitUntil: 'networkidle' });
+await page.waitForTimeout(2000);
+await page.evaluate(() => window.scrollTo(0, document.body.scrollHeight));
+await page.waitForTimeout(2000);
+
+const dump = await page.evaluate(() => {
+  // home 本地简化版的特征 className
+  const homeCta = document.querySelector('section.relative.py-24.sm\\:py-32');
+  // 公开 cta-section 的特征 id
+  const srcCta = document.querySelector('section#cta');
+  // BrandStamp 容器特征（inline-block px-3 py-1.5 border-2 border-[var(--color-brand)] rounded-sm）
+  const stamp = document.querySelector('.inline-block.px-3.py-1\\.5.border-2');
+  return {
+    homeCtaPresent: !!homeCta,
+    homeCtaText: homeCta ? (homeCta.textContent || '').slice(0, 60) : null,
+    srcCtaPresent: !!srcCta,
+    brandStampPresent: !!stamp,
+  };
+});
+await browser.close();
+console.log(JSON.stringify(dump, null, 2));
\ No newline at end of file
diff --git a/tailwind.config.js b/tailwind.config.js
index db4f3ff..799ba70 100644
--- a/tailwind.config.js
+++ b/tailwind.config.js
@@ -5,7 +5,7 @@ module.exports = {
     './src/components/**/*.{js,ts,jsx,tsx,mdx}',
     './src/app/**/*.{js,ts,jsx,tsx,mdx}',
   ],
-  darkMode: 'class',
+  darkMode: ['variant', '[data-theme="dark"] &'],
   theme: {
     extend: {
       colors: {