更新前端静态网页获取方式，放弃使用后端获取api

frontend/public/60sapi/娱乐消遣/随机运势/css/background.css

@@ -0,0 +1,26 @@
+body {
+    background: linear-gradient(-45deg, #0a021a, #2a0d3f, #4a1a6c, #7b2f8f);
+    background-size: 400% 400%;
+    animation: gradientBG 20s ease infinite;
+    color: #ffffff;
+    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+    margin: 0;
+    padding: 0;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    min-height: 100vh;
+    overflow-x: hidden;
+}
+
+@keyframes gradientBG {
+    0% {
+        background-position: 0% 50%;
+    }
+    50% {
+        background-position: 100% 50%;
+    }
+    100% {
+        background-position: 0% 50%;
+    }
+}