refactor: 拆分小程序 vue 结构

src/app.scss

@@ -0,0 +1,108 @@
+@import '@nutui/nutui-taro/dist/style.css';
+@import './styles/variables';
+
+page {
+  min-height: 100%;
+  background: $bg;
+  color: $text-1;
+  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
+  -webkit-font-smoothing: antialiased;
+}
+
+view,
+text,
+scroll-view,
+image {
+  box-sizing: border-box;
+}
+
+.page-shell {
+  min-height: 100vh;
+  padding: 14px 16px 24px;
+  display: flex;
+  flex-direction: column;
+  gap: 14px;
+}
+
+// Utility classes
+.row-between {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+}
+
+.inline-tags {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+}
+
+.caption-text {
+  font-size: 12px;
+  line-height: 1.6;
+  color: $text-4;
+}
+
+.value-text {
+  font-size: 14px;
+  line-height: 1.7;
+  color: $text-2;
+}
+
+.status-success {
+  color: $primary;
+}
+
+.status-danger {
+  color: $red;
+}
+
+.empty-wrap {
+  padding: 28px 0 10px;
+}
+
+.safe-bottom {
+  padding-bottom: calc(120px + env(safe-area-inset-bottom));
+}
+
+// Field input (used in checkout etc.)
+.field-input {
+  width: 100%;
+  height: 44px;
+  border: 1.5px solid $border;
+  border-radius: $r-md;
+  padding: 0 14px;
+  font-size: 13px;
+  color: $text-1;
+  background: $bg;
+  outline: none;
+  font-family: inherit;
+  transition: border-color 0.2s;
+
+  &::placeholder {
+    color: $text-5;
+  }
+
+  &:focus {
+    border-color: $primary;
+  }
+}
+
+// Animations
+@keyframes pulse-dot {
+  0%, 100% { opacity: 1; }
+  50% { opacity: 0.4; }
+}
+
+@keyframes fadeUp {
+  from { opacity: 0; transform: translateY(12px); }
+  to { opacity: 1; transform: translateY(0); }
+}
+
+// Overlay
+.overlay {
+  position: fixed;
+  inset: 0;
+  background: rgba(0, 0, 0, 0.45);
+  z-index: 200;
+}