文件结构、命名优化；

IFLOW描述文件更新；

common/styles/common.css

@@ -1,85 +1,3 @@
-view,
-text {
-  color: #333;
-  font-size: 24rpx;
-  box-sizing: border-box;
-}
-
-/* 2. 主背景色 */
-.main-bg-color {
-  background-color: #fff;
-}
-
-/* 3. 主文字色 */
-.main-color {
-  color: #005097;
-}
-
-.main-border-color {
-  border-color: #646464;
-}
-
-.w100 {
-  width: 100%;
-}
-
-.h100 {
-  height: 100vw;
-}
-
-button {
-  padding: 0;
-  margin: 0;
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  background-color: transparent;
-}
-
-button::after {
-  border: none;
-}
-.flex-sp {
-  display: flex;
-  align-items: center;
-  justify-content: space-between;
-}
-
-.tag {
-  padding: 6rpx 20rpx;
-  font-feature-settings: 'liga' off, 'clig' off;
-  font-family: 'Source Han Sans CN';
-  font-size: 26rpx;
-}
-
-.tag1 {
-  background: #d9ebff;
-  color: #005097;
-}
-
-.tag2 {
-  background: #ffefd9;
-  color: #972300;
-}
-
-.tag3 {
-  background: #ffe4d9;
-  color: #970000;
-}
-
-.tag4 {
-  background: #d9ffea;
-  color: #00972d;
-}
-/************************************************************
-** 请将全局样式拷贝到项目的全局 CSS 文件或者当前页面的顶部 **
-** 否则页面将无法正常显示                                  **
-************************************************************/
-
-html {
-  font-size: 16px;
-}
-
 body {
   margin: 0;
   font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', 'Microsoft Yahei', sans-serif;
@@ -92,6 +10,7 @@ image,
 text {
   box-sizing: border-box;
   flex-shrink: 0;
+  color: #333;
 }
 
 #app {
@@ -600,18 +519,3 @@ text {
 .code-fun-mt-100 {
   margin-top: 200rpx;
 }
-.head {
-  width: 750rpx;
-  height: 372rpx;
-  flex-shrink: 0;
-  position: absolute;
-  top: 0;
-  left: 0;
-  background: linear-gradient(180deg, #d4eaff 0%, #fff 65.32%);
-}
-.container {
-  width: 100vw;
-  height: 100vh;
-  background-image: linear-gradient(to bottom, #dff0ff 8%, white 15%);
-  overflow: hidden;
-}