fix: style

src/index.css

@@ -262,6 +262,8 @@ canvas {
   border-radius: 28px;
   box-shadow: 0 24px 90px rgba(0, 0, 0, 0.45);
   overflow-y: auto;
+  display: flex;
+  flex-direction: column;
   backdrop-filter: blur(22px);
   scrollbar-width: thin;
   scrollbar-color: #3a3a3a transparent;
@@ -541,6 +543,81 @@ canvas {
   text-align: right;
 }
 
+.editor-json-section {
+  display: flex;
+  flex-direction: column;
+  min-height: 240px;
+  padding: 14px 12px 12px;
+  border-top: 1px solid rgba(255, 255, 255, 0.09);
+}
+
+.editor-json-view {
+  flex: 1;
+  max-height: 320px;
+  margin: 0;
+  padding: 8px 0;
+  overflow: auto;
+  background: #050505;
+  border: 1px solid #1f1f1f;
+  border-radius: 16px;
+  color: #d7d7d7;
+  font-family: "SFMono-Regular", "Courier New", monospace;
+  font-size: 0.72rem;
+  line-height: 1.55;
+  scrollbar-width: thin;
+  scrollbar-color: #3a3a3a transparent;
+}
+
+.editor-json-view::-webkit-scrollbar {
+  width: 6px;
+  height: 6px;
+}
+
+.editor-json-view::-webkit-scrollbar-thumb {
+  background: #3a3a3a;
+  border-radius: 999px;
+}
+
+.editor-json-view code {
+  display: grid;
+  grid-template-columns: 34px max-content;
+  gap: 10px;
+  min-width: 100%;
+  padding: 0 12px;
+  background: transparent;
+  color: inherit;
+  font-family: inherit;
+  white-space: pre;
+}
+
+.editor-json-view code span {
+  color: #5f5f5f;
+  text-align: right;
+  user-select: none;
+}
+
+.editor-json-view code.is-selected {
+  background: #111111;
+  color: #f2f2f2;
+}
+
+.editor-json-view code.is-selected * {
+  color: #f2f2f2;
+}
+
+.editor-json-view code.is-selected span {
+  color: #8a8a8a;
+}
+
+.editor-json-hint {
+  display: flex;
+  align-items: center;
+  gap: 7px;
+  margin-top: 8px;
+  color: #8d8d8d;
+  font-size: 0.74rem;
+}
+
 @media (max-width: 768px) {
   .editor-error h2 {
     font-size: 1.5rem;
@@ -567,4 +644,8 @@ canvas {
     max-height: 46vh;
     border-radius: 22px;
   }
+
+  .editor-json-section {
+    min-height: 180px;
+  }
 }