diff --git a/src/css/custom.css b/src/css/custom.css
index 73e0926..84d7d17 100644
--- a/src/css/custom.css
+++ b/src/css/custom.css
@@ -268,26 +268,26 @@ body {
   position: relative;
 }
 
-.card:after {
-  content: '';
-  position: absolute;
-  bottom: 0;
-  left: 0;
-  right: 0;
-  height: 2px;
-  background: linear-gradient(90deg, var(--primary), var(--balance-2));
-  border-radius: 0 0 8px 8px;
-  opacity: 0.7;
+/* 卡片标题位置调整 */
+.card__header {
+  padding: 0;
+  margin: 0;
 }
 
-.card:hover {
-  transform: translateY(-2px);
-  box-shadow: var(--shadow-sm);
-  border-color: rgba(230, 92, 79, 0.2);
+.card__header h2,
+.card__header h3 {
+  margin-top: 0;
+  margin-bottom: 0.5rem;
+}
+
+.card__body {
+  padding: 0;
+  padding-top: 0.5rem;
 }
 
 .card h2 {
   font-size: 1.25rem;
+  margin-top: 0;
   margin-bottom: 0.75rem;
   color: var(--balance-1);
   display: flex;
@@ -298,6 +298,25 @@ body {
   color: var(--text-secondary);
   font-size: 0.9rem;
   line-height: 1.6;
+  margin-bottom: 0;
+}
+
+.card:after {
+  content: '';
+  position: absolute;
+  bottom: 0;
+  left: 0;
+  right: 0;
+  height: 2px;
+  background: linear-gradient(90deg, var(--primary), var(--balance-2));
+  border-radius: 0 0 8px 8px;
+  opacity: 0.7;
+}
+
+.card:hover {
+  transform: translateY(-2px);
+  box-shadow: var(--shadow-sm);
+  border-color: rgba(230, 92, 79, 0.2);
 }
 
 /* ===== 7. 按钮 ===== */
diff --git a/src/pages/index.js b/src/pages/index.js
index b8bb6d6..4c29006 100644
--- a/src/pages/index.js
+++ b/src/pages/index.js
@@ -23,6 +23,8 @@ const defaultImages = [
   '/img/hero/bg1.jpg',
   '/img/hero/bg2.jpg',
   '/img/hero/bg3.jpg',
+  '/img/hero/bg4.png',
+  '/img/hero/bg5.png',
 ];
 
 /*
diff --git a/static/img/hero/bg4.png b/static/img/hero/bg4.png
new file mode 100644
index 0000000..c0bcac5
Binary files /dev/null and b/static/img/hero/bg4.png differ
diff --git a/static/img/hero/bg5.png b/static/img/hero/bg5.png
new file mode 100644
index 0000000..52ab087
Binary files /dev/null and b/static/img/hero/bg5.png differ