feat: improve qwen zerogpu ux

Co-authored-by: Codex <noreply@openai.com>

app.py

@@ -26,13 +26,12 @@ PRIVACY_WARNING = (
     "This app analyzes only visible agent narrative messages by default and does not need raw tool outputs."
 )
 
-HERO_MD = f"""
-<div class="hero">
-  <div class="hero-kicker">ZeroGPU field report</div>
-  <h1>Trace Field Notes</h1>
-  <p>Map where a coding agent got stuck, changed route, recovered, and claimed success.</p>
-</div>
-<div class="privacy-callout">{PRIVACY_WARNING}</div>
+HERO_MD = """
+**ZeroGPU field report**
+
+# Trace Field Notes
+
+Map where a coding agent got stuck, changed route, recovered, and claimed success.
 """
 
 SESSION_PATHS_MD = """
@@ -88,7 +87,7 @@ CUSTOM_CSS = """
   color: var(--field-muted);
   font-size: 15px;
 }
-.hero-kicker {
+.hero strong {
   margin-bottom: 8px;
   color: #7dd3fc;
   font: 700 12px/1.2 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
@@ -243,7 +242,8 @@ with gr.Blocks(
         font_mono=[gr.themes.GoogleFont("IBM Plex Mono"), "ui-monospace", "monospace"],
     ),
 ) as demo:
-    gr.Markdown(HERO_MD)
+    gr.Markdown(HERO_MD, elem_classes=["hero"])
+    gr.Markdown(PRIVACY_WARNING, elem_classes=["privacy-callout"])
 
     with gr.Row(equal_height=False):
         with gr.Column(scale=3, elem_classes=["trace-panel"]):