feat(ui): Leseerlebnis fuer Wissen und rechtliche Seiten

- Artikel: Lesefortschritt als feine Honiglinie am oberen Rand, Initiale
  in Serifenschrift und Honig, groesserer Titel, angenehme Zeilenlaenge
- Wissen-Uebersicht und "Weitere Artikel" als ruhige Liste mit grossen
  Serifen-Titeln, Unterstrich und gezeichnetem Pfeil statt "→"
- Rechtliche Seiten mit klarerer Ueberschriften-Hierarchie

Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>

src/app/wissen/[slug]/page.tsx

@@ -1,6 +1,7 @@
 import type { Metadata } from "next";
 import { notFound } from "next/navigation";
 import Link from "next/link";
+import { ReadingProgress } from "@/components/reading-progress";
 import { Container } from "@/components/ui";
 import { BackLink } from "@/components/back-link";
 import { wissenSlugs } from "@/lib/site-config";
@@ -67,6 +68,7 @@ export default async function WissenArticlePage(
 
   return (
     <div className="py-20">
+      <ReadingProgress />
       <script
         type="application/ld+json"
         dangerouslySetInnerHTML={{ __html: JSON.stringify(jsonLd).replace(/</g, "\\u003c") }}
@@ -78,23 +80,38 @@ export default async function WissenArticlePage(
       <Container className="max-w-2xl">
         <BackLink href="/wissen" label={t.wissenArticlePage.backLabel} />
         <p className="tracking-wide-caps text-xs text-honey-dark mb-3">{t.wissenArticlePage.eyebrow}</p>
-        <h1 className="text-3xl text-forest">{article.title}</h1>
-        <div className="mt-8 space-y-5 text-ink/75 leading-relaxed">
+        <h1 className="text-4xl md:text-5xl leading-[1.05] tracking-[-0.01em] text-forest">{article.title}</h1>
+        <div className="mt-10 max-w-[65ch] space-y-6 text-lg text-ink/80 leading-[1.75]">
           {article.body.map((paragraph, i) => (
-            <p key={i}>{paragraph}</p>
+            // Initiale wie im Buch: der erste Buchstabe des Artikels gross in Honig.
+            <p key={i} className={i === 0 ? "first-letter:float-left first-letter:mr-3 first-letter:mt-1.5 first-letter:font-serif first-letter:text-7xl first-letter:leading-[0.8] first-letter:text-honey-dark" : undefined}>
+              {paragraph}
+            </p>
           ))}
         </div>
 
         {otherArticles.length > 0 ? (
           <div className="mt-16 border-t border-ink/10 pt-10">
             <p className="text-sm tracking-wide-caps text-ink/70 mb-6">{t.wissenArticlePage.otherArticlesHeading}</p>
-            <div className="space-y-6">
+            <div className="divide-y divide-ink/10 border-y border-ink/10">
               {otherArticles.map((otherSlug) => {
                 const other = t.wissenArticles[otherSlug];
                 return (
-                  <Link key={otherSlug} href={`/wissen/${otherSlug}`} className="group block">
-                    <h2 className="text-lg text-forest group-hover:underline">{other.title}</h2>
-                    <p className="mt-1 text-sm text-ink/65 leading-relaxed">{other.excerpt}</p>
+                  <Link key={otherSlug} href={`/wissen/${otherSlug}`} className="group flex items-start justify-between gap-6 py-6">
+                    <span>
+                      <span className="link-draw pb-0.5 font-serif text-2xl text-forest">{other.title}</span>
+                      <span className="mt-2 block text-sm text-ink/65 leading-relaxed">{other.excerpt}</span>
+                    </span>
+                    <svg
+                      aria-hidden="true"
+                      viewBox="0 0 24 24"
+                      className="mt-2 h-4 w-4 flex-shrink-0 text-forest transition-transform duration-300 ease-[var(--ease-arrive)] group-hover:translate-x-1"
+                      fill="none"
+                      stroke="currentColor"
+                      strokeWidth="1.6"
+                    >
+                      <path d="M4 12h15M13 6l6 6-6 6" strokeLinecap="round" strokeLinejoin="round" />
+                    </svg>
                   </Link>
                 );
               })}

src/app/wissen/page.tsx

@@ -23,19 +23,26 @@ export default async function WissenPage() {
         <ScrollReveal>
           <SectionHeading level="h1" eyebrow={t.wissenListPage.eyebrow} title={t.wissenListPage.title} />
         </ScrollReveal>
-        <div className="mt-14 space-y-10">
+        <div className="mt-14 divide-y divide-ink/10 border-y border-ink/10">
           {wissenSlugs.map((slug, i) => {
             const article = t.wissenArticles[slug];
             return (
               <ScrollReveal key={slug} delay={(i % 5) * 0.06}>
-                <Link href={`/wissen/${slug}`} className="block group">
-                  <h2 className="text-xl text-forest group-hover:underline">{article.title}</h2>
-                  <p className="mt-2 text-sm text-ink/65 leading-relaxed">{article.excerpt}</p>
-                  <span className="mt-3 inline-flex items-center gap-1 text-sm text-honey-dark tracking-wide-caps">
+                <Link href={`/wissen/${slug}`} className="group block py-9">
+                  <h2 className="link-draw inline pb-0.5 text-3xl leading-tight text-forest">{article.title}</h2>
+                  <p className="mt-3 max-w-[60ch] text-ink/70 leading-relaxed">{article.excerpt}</p>
+                  <span className="mt-4 inline-flex items-center gap-2 text-sm text-honey-dark tracking-wide-caps">
                     {t.wissenListPage.readMore}
-                    <span className="transition-transform group-hover:translate-x-1" aria-hidden="true">
-                      →
-                    </span>
+                    <svg
+                      aria-hidden="true"
+                      viewBox="0 0 24 24"
+                      className="h-3.5 w-3.5 transition-transform duration-300 ease-[var(--ease-arrive)] group-hover:translate-x-1"
+                      fill="none"
+                      stroke="currentColor"
+                      strokeWidth="1.6"
+                    >
+                      <path d="M4 12h15M13 6l6 6-6 6" strokeLinecap="round" strokeLinejoin="round" />
+                    </svg>
                   </span>
                 </Link>
               </ScrollReveal>