全胜时盈亏比显示∞

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

ft-app/app/templates/summary.html

@@ -54,8 +54,8 @@
   </div>
   <div class="stat-card">
     <div class="label">盈亏比</div>
-    <div class="value" style="{% if profit_ratio >= 1 %}color:var(--danger-fg);{% else %}color:var(--success-fg);{% endif %}">
+    <div class="value" style="{% if profit_ratio <= 0 %}color:var(--sub);{% elif profit_ratio >= 1 %}color:var(--danger-fg);{% else %}color:var(--success-fg);{% endif %}">
-      {{ "%.2f"|format(profit_ratio) }}
+      {% if total_loss == 0 and total_profit > 0 %}∞{% else %}{{ "%.2f"|format(profit_ratio) }}{% endif %}
     </div>
   </div>
   <div class="stat-card">