feat(ui): 紫色主题完善、抢单端去自动刷新、我的页下拉刷新

Co-authored-by: Cursor <cursoragent@cursor.com>

pages/index/index.wxml

@@ -18,7 +18,7 @@
       class="lunbo-swiper" 
       indicator-dots="{{lunboList.length > 1}}" 
       indicator-color="rgba(255,255,255,0.6)" 
-      indicator-active-color="#ffcc00"
+      indicator-active-color="#a855f7"
       autoplay="{{lunboList.length > 1}}"
       interval="3000"
       circular

pages/index/index.wxss

@@ -12,7 +12,7 @@
   border-radius: 40rpx;
   background: linear-gradient(135deg,
     rgba(220, 255, 220, 0.85) 0%,
-    rgba(255, 255, 200, 0.85) 100%);
+    rgba(237, 233, 254, 0.85) 100%);
   backdrop-filter: blur(10px);
   display: flex;
   align-items: center;
@@ -120,7 +120,7 @@
   position: absolute;
   width: 12rpx;
   height: 12rpx;
-  background: #ffcc00;
+  background: #a855f7;
   border-radius: 50%;
   top: 15rpx;
   right: 15rpx;
@@ -195,8 +195,8 @@
 }
 
 .leixing-active .leixing-glow {
-  border-color: #ffcc00;
-  box-shadow: 0 0 20rpx rgba(255, 204, 0, 0.5);
+  border-color: #a855f7;
+  box-shadow: 0 0 20rpx rgba(168, 85, 247, 0.5);
 }
 
 .leixing-active .leixing-image-box {
@@ -239,7 +239,7 @@
 .zhuanqu-icon-image {
   width: 100%;
   height: 100%;
-  filter: drop-shadow(0 2rpx 4rpx rgba(255, 204, 0, 0.3));
+  filter: drop-shadow(0 2rpx 4rpx rgba(168, 85, 247, 0.3));
 }
 
 .zhuanqu-sparkle {
@@ -249,11 +249,11 @@
 @keyframes sparkle {
   0%, 100% {
     transform: scale(1) rotate(0deg);
-    filter: drop-shadow(0 2rpx 4rpx rgba(255, 204, 0, 0.3));
+    filter: drop-shadow(0 2rpx 4rpx rgba(168, 85, 247, 0.3));
   }
   50% {
     transform: scale(1.1) rotate(10deg);
-    filter: drop-shadow(0 4rpx 8rpx rgba(255, 204, 0, 0.6));
+    filter: drop-shadow(0 4rpx 8rpx rgba(168, 85, 247, 0.6));
   }
 }
 
@@ -271,7 +271,7 @@
   bottom: -8rpx;
   width: 60rpx;
   height: 4rpx;
-  background: linear-gradient(90deg, #ffcc00, transparent);
+  background: linear-gradient(90deg, #a855f7, transparent);
   border-radius: 2rpx;
 }