Make risk policy cards responsive with auto-fit grid layout.

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

lib/common/static/instance_theme.css

@@ -2512,6 +2512,14 @@ html[data-theme="light"] .journal-detail-img-thumb {
 /* ── 风控说明页 ── */
 .risk-policy-page {
   margin-top: 12px;
+  width: 100%;
+  min-width: 0;
+}
+
+.risk-policy-page .settings-card--risk {
+  width: 100%;
+  min-width: 0;
+  box-sizing: border-box;
 }
 
 .settings-page--grid {
@@ -2758,16 +2766,20 @@ html[data-theme="light"] .journal-detail-img-thumb {
 
 .settings-risk-sections {
   display: grid;
-  grid-template-columns: repeat(2, minmax(0, 1fr));
+  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
   gap: 10px;
   margin-top: 10px;
   flex: 1;
+  align-items: start;
+  container-type: inline-size;
 }
 
 .settings-subcard {
   padding: 10px 12px;
   min-width: 0;
   margin: 0;
+  width: 100%;
+  box-sizing: border-box;
 }
 
 .settings-subcard-title {
@@ -2778,15 +2790,37 @@ html[data-theme="light"] .journal-detail-img-thumb {
 }
 
 .settings-kv--compact .settings-kv-row {
-  grid-template-columns: 8em 1fr;
+  grid-template-columns: minmax(7em, auto) minmax(0, 1fr);
+  gap: 6px 12px;
   padding: 4px 0;
   font-size: 0.75rem;
+  align-items: start;
+}
+
+@container (max-width: 420px) {
+  .settings-risk-sections .settings-kv--compact .settings-kv-row {
+    grid-template-columns: minmax(0, 1fr);
+    gap: 2px;
+  }
+
+  .settings-risk-sections .settings-kv--compact .settings-kv-row dd {
+    margin-bottom: 6px;
+  }
 }
 
 @media (max-width: 720px) {
   .settings-risk-sections {
     grid-template-columns: minmax(0, 1fr);
   }
+
+  .settings-kv--compact .settings-kv-row {
+    grid-template-columns: minmax(0, 1fr);
+    gap: 2px;
+  }
+
+  .settings-kv--compact .settings-kv-row dd {
+    margin-bottom: 6px;
+  }
 }
 
 .settings-section {