style: update border-radius and padding values across components

- standardize border-radius from 8px to 6px for consistent styling
- adjust padding values from 1rem to 0.75rem for better visual hierarchy
- remove redundant overflow-y properties for cleaner code

docs/.vitepress/theme/components/appendix/prompt-engineering/ChainOfThoughtDemo.vue

@@ -304,7 +304,7 @@ async function runSimulation() {
 .output-container {
   min-height: 300px;
   max-height: 400px;
-  overflow-y: auto;
+  
   padding: 0 4px;
 }
 

docs/.vitepress/theme/components/appendix/prompt-engineering/PromptQuickStartDemo.vue

@@ -383,7 +383,7 @@ const run = () => {
   display: flex;
   gap: 10px;
   padding: 10px;
-  border-radius: 8px;
+  border-radius: 6px;
   background: var(--vp-c-bg);
   border: 1px solid var(--vp-c-divider);
   align-items: flex-start;
@@ -430,7 +430,7 @@ const run = () => {
   align-items: center;
   background: var(--vp-c-bg-alt);
   padding: 12px 16px;
-  border-radius: 8px;
+  border-radius: 6px;
   border: 1px solid var(--vp-c-divider);
 }
 
@@ -530,7 +530,7 @@ const run = () => {
   background: rgba(var(--vp-c-yellow-rgb), 0.1);
   border: 1px solid rgba(var(--vp-c-yellow-rgb), 0.3);
   padding: 12px;
-  border-radius: 8px;
+  border-radius: 6px;
   margin-top: auto;
 }
 

docs/.vitepress/theme/components/appendix/prompt-engineering/PromptRobustnessDemo.vue

@@ -233,7 +233,7 @@ const runVerify = () => {
   margin-bottom: 24px;
   background-color: var(--vp-c-bg-soft);
   padding: 16px;
-  border-radius: 8px;
+  border-radius: 6px;
 }
 
 .input-display {
@@ -282,7 +282,7 @@ const runVerify = () => {
   margin-top: 12px;
   background: var(--vp-c-bg-soft);
   padding: 12px;
-  border-radius: 8px;
+  border-radius: 6px;
 }
 
 .plan-result {
@@ -301,7 +301,7 @@ const runVerify = () => {
 
 .monitor-log {
   background: var(--vp-c-bg-alt);
-  border-radius: 8px;
+  border-radius: 6px;
   padding: 16px;
   border: 1px solid var(--vp-c-divider);
 }

docs/.vitepress/theme/components/appendix/prompt-engineering/PromptSecurityDemo.vue

@@ -260,7 +260,7 @@ const runSimulation = () => {
   background: #1e1e1e;
   color: #fff;
   padding: 16px;
-  border-radius: 8px;
+  border-radius: 6px;
   font-family: monospace;
   flex-grow: 1;
   min-height: 150px;

docs/.vitepress/theme/components/appendix/prompt-engineering/TrainingProcessDemo.vue

@@ -224,7 +224,7 @@ const selectPrediction = (item) => {
 /* Pre-training styles */
 .editor-window {
   background: #1e1e1e;
-  border-radius: 8px;
+  border-radius: 6px;
   color: #d4d4d4;
   font-family: monospace;
   overflow: hidden;
@@ -308,7 +308,7 @@ const selectPrediction = (item) => {
 /* Fine-tuning styles */
 .chat-window {
   background: var(--vp-c-bg-soft);
-  border-radius: 8px;
+  border-radius: 6px;
   padding: 20px;
   margin-bottom: 20px;
   min-height: 200px;