메인페이지 스타일 1차 적용

src/main/resources/static/sass/layout/_header.scss

@@ -55,14 +55,14 @@
   top: 0;
   left: 0;
   right: 0;
-  background: rgba(255, 255, 255, 0.95);
+  //background-color: #C3DFEA;
+  background-color: #E5F8FF;
   backdrop-filter: blur(10px);
   -webkit-backdrop-filter: blur(10px);
-  box-shadow: var(--shadow-sm);
   z-index: 1000;
-  height: 65px;
+  height: 90px;
   transition: all 0.3s ease;
-  border-bottom: 1px solid #5F666C;
+  border-bottom: 1px solid #dddddd;
 }
 
 .header-content {
@@ -73,6 +73,7 @@
   max-width: 1920px;
   margin: 0 auto;
   padding: 0 20px;
+  margin-top: 20px;
 }
 
 // ===========================