Improve article page readability and appearance on desktop

Adjust article page layout on desktop, reducing image size, title font size, and text size while narrowing content width for better readability and visual balance.

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replit.md

@@ -151,6 +151,14 @@ When adding new articles:
 9. Facebook embeds: copy the iframe code as-is from user
 10. After deploy, go to Facebook Sharing Debugger and click "Scrape Again" to refresh cache
 
+## Article Page Layout
+- Outer wrapper: `max-w-7xl` (for PageSideAds), inner content: `max-w-4xl mx-auto`
+- Cover image: `max-h-[420px]` with object-cover
+- Title: `text-2xl md:text-3xl` font-bold
+- Meta (author/date/views): `text-xs` with `w-3.5 h-3.5` icons
+- Body text: `prose-base` with `prose-p:text-[15px]` and `prose-headings:text-lg`
+- In-article ad splits content at midpoint
+
 ## Important Notes
 - Tailwind `object-[center_25%]` does NOT work — must use inline `style={{ objectPosition: "center 25%" }}`
 - Horoscope widget navigates to /horoskop on click (no modal)