diff --git a/frontend/src/views/mobile/MobileLoginView.vue b/frontend/src/views/mobile/MobileLoginView.vue
index c3b967b..df3c35c 100644
--- a/frontend/src/views/mobile/MobileLoginView.vue
+++ b/frontend/src/views/mobile/MobileLoginView.vue
@@ -203,9 +203,8 @@ async function handleLogin() {
 <style scoped>
 /* ========== Vant 主题变量覆盖 ========== */
 :root {
-  --van-primary-color: #1777ff;
-  --van-primary-color-light: #5fd4ff;
-  --van-button-primary-background: linear-gradient(135deg, #1777ff, #5fd4ff);
+  --van-primary-color: #1477ff;
+  --van-button-primary-background: #1477ff;
   --van-button-primary-border-color: transparent;
 }
 
@@ -214,12 +213,7 @@ async function handleLogin() {
   min-height: 100dvh;
   box-sizing: border-box;
   overflow: hidden;
-  background: radial-gradient(
-    circle at 50% 0,
-    #eafff9 0,
-    #f7fbff 38%,
-    #ffffff 86%
-  );
+  background: #f5f7fa;
   color: #151c28;
   padding: 40px 24px;
 }
@@ -246,11 +240,11 @@ async function handleLogin() {
   flex: 0 0 auto;
   place-items: center;
   border-radius: 16px;
-  background: linear-gradient(145deg, #1777ff, #5fd4ff);
+  background: #1477ff;
   color: #ffffff;
   font-size: 21px;
   font-weight: 900;
-  box-shadow: 0 10px 22px rgba(23, 119, 255, 0.2);
+  box-shadow: 0 4px 12px rgba(20, 119, 255, 0.18);
 }
 
 .login-top p {
@@ -384,9 +378,9 @@ async function handleLogin() {
   height: 46px;
   font-size: 15px;
   font-weight: 800;
-  background: linear-gradient(135deg, #1777ff, #5fd4ff) !important;
+  background: #1477ff !important;
   border: none !important;
-  box-shadow: 0 8px 20px rgba(23, 119, 255, 0.25);
+  box-shadow: 0 4px 12px rgba(20, 119, 255, 0.18);
 }
 
 /* ========== 注册入口按钮 ========== */
diff --git a/frontend/src/views/mobile/MobileRegisterView.vue b/frontend/src/views/mobile/MobileRegisterView.vue
index 97bba93..ce39452 100644
--- a/frontend/src/views/mobile/MobileRegisterView.vue
+++ b/frontend/src/views/mobile/MobileRegisterView.vue
@@ -210,9 +210,8 @@ async function handleRegister() {
 <style scoped>
 /* ========== Vant 主题变量覆盖 ========== */
 :root {
-  --van-primary-color: #1777ff;
-  --van-primary-color-light: #5fd4ff;
-  --van-button-primary-background: linear-gradient(135deg, #1777ff, #5fd4ff);
+  --van-primary-color: #5b6ee1;
+  --van-button-primary-background: #5b6ee1;
   --van-button-primary-border-color: transparent;
 }
 
@@ -221,12 +220,7 @@ async function handleRegister() {
   min-height: 100dvh;
   box-sizing: border-box;
   overflow: hidden;
-  background: radial-gradient(
-    circle at 50% 0,
-    #eafff9 0,
-    #f7fbff 38%,
-    #ffffff 86%
-  );
+  background: #f5f6f8;
   color: #151c28;
   padding: 40px 24px;
 }
@@ -253,11 +247,11 @@ async function handleRegister() {
   flex: 0 0 auto;
   place-items: center;
   border-radius: 16px;
-  background: linear-gradient(145deg, #1777ff, #5fd4ff);
+  background: #5b6ee1;
   color: #ffffff;
   font-size: 21px;
   font-weight: 900;
-  box-shadow: 0 10px 22px rgba(23, 119, 255, 0.2);
+  box-shadow: 0 4px 12px rgba(91, 110, 225, 0.18);
 }
 
 .register-top p {
@@ -382,9 +376,9 @@ async function handleRegister() {
   height: 46px;
   font-size: 15px;
   font-weight: 800;
-  background: linear-gradient(135deg, #1777ff, #5fd4ff) !important;
+  background: #5b6ee1 !important;
   border: none !important;
-  box-shadow: 0 8px 20px rgba(23, 119, 255, 0.25);
+  box-shadow: 0 4px 12px rgba(91, 110, 225, 0.18);
 }
 
 /* ========== 登录入口按钮 ========== */