fix(css): 调整页面内边距和底部间距以优化布局

public/themes/dist_static/static/css/common.css

@@ -1443,7 +1443,7 @@ body {
   display: flex;
   flex-direction: column;
   gap: 0.5rem;
-  padding: 5rem;
+  padding: 3rem 5rem;
   border-right: 1px solid rgba(46, 53, 58, 0.1);
 }.nav-mega__cat {
   display: flex;
@@ -1484,7 +1484,7 @@ body {
   display: grid;
   grid-template-columns: minmax(0, 1fr) 20rem;
   gap: 3.5625rem;
-  padding: 5rem;
+  padding: 3rem 5rem;
   padding-right: 3.5625rem;
   min-width: 0;
 }.nav-mega__panels {
@@ -1496,7 +1496,7 @@ body {
   display: inline-flex;
   align-items: center;
   gap: 1rem;
-  margin-bottom: 5rem;
+  margin-bottom: 3rem;
   color: var(--color-text);
   font-family: "MiSans VF", "PingFang SC", sans-serif;
   font-size: var(--font-24);