Add Helvetica-Light-05 font files in TTF, WOFF, and WOFF2 formats

src/components/PinPuYi/Helvetica.css

@@ -0,0 +1,12 @@
+@font-face {
+    font-family: 'Helvetica Custom';
+    src: url('fonts/Helvetica-Light-05.eot');
+    src: url('fonts/Helvetica-Light-05.eot?#iefix') format('embedded-opentype'),
+         url('fonts/Helvetica-Light-05.woff2') format('woff2'),
+         url('fonts/Helvetica-Light-05.woff') format('woff'),
+         url('fonts/Helvetica-Light-05.ttf')  format('truetype'),
+         url('fonts/Helvetica-Light-05.svg#Helvetica') format('svg');
+    font-weight: 400; /* 400 通常代表 'normal' 或 'regular' */
+    font-style: normal;
+    font-display: swap; /* 推荐 */
+}

src/components/PinPuYi/PinPuYi.vue

@@ -26,6 +26,7 @@ import DeviceImage from './pin-pu-yi-bg.png';
 </template>
 
 <style scoped>
+@import url('./Helvetica.css');
 img {
   width: calc(2554px * 0.5);
   height: calc(1626px * 0.5);
@@ -36,6 +37,8 @@ img {
   box-shadow: 0 0 0 1px rgba(255, 0, 0, 0.5);
 }
 .ppy-btn {
+  font-family: 'Helvetica Custom';
+
   height: 30px;
   width: 36px;
   border: 1px solid green;