fix: journal detail contrast and unify AI review journal format across four exchanges

Co-authored-by: Cursor <cursoragent@cursor.com>

static/instance_theme.css

@@ -324,6 +324,19 @@ html[data-theme="light"] .detail-modal .panel-title {
   color: #142232 !important;
 }
 
+/* 交易复盘详情：上方元数据（非 Markdown 区）浅色主题对比度 */
+html[data-theme="light"] .detail-modal .panel-body:not(.md-review) {
+  color: #1a2838 !important;
+}
+
+html[data-theme="light"] .detail-modal .panel {
+  border-color: #b8c8d8 !important;
+}
+
+html[data-theme="light"] .detail-modal .panel-image {
+  border-color: #b8c8d8 !important;
+}
+
 html[data-theme="light"] .journal-card .form-grid label,
 html[data-theme="light"] .journal-card .sub {
   color: #4a6078 !important;