style: 顶部导航条统一为56px，与商户折扣页顶部高度对齐

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

pages/index/login.vue

@@ -275,7 +275,7 @@ export default {
 .nav-bar {
 	display: flex;
 	align-items: center;
-	height: 44px;
+	height: 56px;
 	background-color: #ffffff;
 	border-bottom: 1px solid #f0f0f0;
 	position: relative;

pages/rights/rights.vue

@@ -968,7 +968,7 @@
 	.nav-bar {
 		display: flex;
 		align-items: center;
-		height: 44px;
+		height: 56px;
 		background-color: #ffffff;
 		border-bottom: 1px solid #f0f0f0;
 		position: relative;

pages/venue/detail.vue

@@ -146,7 +146,7 @@ export default {
 
 <style>
 .page {
-	/* xuchao: 顶部导航条占用 44px，改为 min-height 让长内容正常滚动，避免底部被裁切 */
+	/* xuchao: 顶部导航条占用 56px，改为 min-height 让长内容正常滚动，避免底部被裁切 */
 	min-height: 100vh;
 	background-color: #f2f2f7;
 }
@@ -280,7 +280,7 @@ export default {
 .nav-bar {
 	display: flex;
 	align-items: center;
-	height: 44px;
+	height: 56px;
 	background-color: #ffffff;
 	border-bottom: 1px solid #f0f0f0;
 	position: relative;