diff --git a/.vitepress/theme/style.css b/.vitepress/theme/style.css
index 9ebec97..53b5b27 100644
--- a/.vitepress/theme/style.css
+++ b/.vitepress/theme/style.css
@@ -9,12 +9,12 @@
  * -------------------------------------------------------------------------- */
 
 :root {
-  --vp-c-brand: #646cff;
-  --vp-c-brand-light: #747bff;
-  --vp-c-brand-lighter: #9499ff;
-  --vp-c-brand-lightest: #bcc0ff;
-  --vp-c-brand-dark: #535bf2;
-  --vp-c-brand-darker: #454ce1;
+  --vp-c-brand: #0dadc4;
+  --vp-c-brand-light: #1A9CED;
+  --vp-c-brand-lighter: #1CA8FF;
+  --vp-c-brand-lightest: #5EB2E6;
+  --vp-c-brand-dark: #0B52BF;
+  --vp-c-brand-darker: #015F8F;
   --vp-c-brand-dimm: rgba(100, 108, 255, 0.08);
 }
 
@@ -47,14 +47,16 @@
   --vp-home-hero-name-color: transparent;
   --vp-home-hero-name-background: -webkit-linear-gradient(
     120deg,
-    #bd34fe 30%,
-    #41d1ff
+    #08BAB6,
+    #1994E1,
+    #0B52BF
   );
 
   --vp-home-hero-image-background-image: linear-gradient(
     -45deg,
-    #bd34fe 50%,
-    #47caff 50%
+    #08BAB6 50%,
+    #1994E1 50%,
+    #0B52BF 50%
   );
   --vp-home-hero-image-filter: blur(40px);
 }
diff --git a/index.md b/index.md
index c4fb9fd..af62c18 100644
--- a/index.md
+++ b/index.md
@@ -7,8 +7,8 @@ hero:
   text: HDU计算机科学讲义
   # tagline: My great project tagline
   image:
-    src: https://picxyxsw.oss-cn-hangzhou.aliyuncs.com/kita.gif
-    alt: 暂时的占位图
+    src: hdu-cs-wiki.svg
+    alt: HDU-CS-WIKI
   actions:
     - theme: brand
       text: 开始