Margin reduction in user guide.

steps/User_Manual.html

@@ -323,7 +323,7 @@
 
         <!-- 2. How to Use (30-Second Guide) -->
         <section>
-            <h2 class="text-center mb-4">How to Use (The 30-Second Guide)</h2>
+            <h2 class="text-center mb-4" style="margin-bottom: 2px;">How to Use (The 30-Second Guide)</h2>
             <div class="flow-diagram flex flex-col md:flex-row items-stretch justify-center gap-2 md:gap-4">
                 <div class="flow-step flex-1">
                     <span class="text-3xl">1️⃣</span>
@@ -350,7 +350,7 @@
 
         <!-- 3. The Main Interface (VISUAL) -->
         <section>
-            <h2 class="text-center mb-8">The Main Interface</h2>
+            <h2 class="text-center mb-8" style="margin-bottom: 2px;">The Main Interface</h2>
 
             <div class="relative p-8 bg-white rounded-lg shadow-lg border border-slate-200">
                 <!-- Main Layout Wireframe -->