diff --git a/src/App.js b/src/App.js
index 56f3f25..87e1f70 100644
--- a/src/App.js
+++ b/src/App.js
@@ -1,7 +1,7 @@
 import React, { Component } from "react";
 import "styles/iconfont/iconfont.css";
-import "styles/common.scss";
-import "styles/reset.css";
+import "styles/normalize.scss";
+import "styles/default.scss"
 import "./utils/prototype"
 export default class App extends Component {
   componentDidMount() {}
diff --git a/src/pages/home/index.scss b/src/pages/home/index.scss
index c05ce14..16993c1 100644
--- a/src/pages/home/index.scss
+++ b/src/pages/home/index.scss
@@ -266,32 +266,66 @@
     .bihuan-process {
       margin: 100px 30px;
       .process {
-        width: 100%;
-        height: 5px;
-        background: linear-gradient(to right, #ffc003, #ff4753);
-        border-radius: 5px;
-        position: relative;
         display: flex;
-        align-items: center;
         justify-content: space-between;
-        li{
-          flex:auto;
+        position: relative;
+        width: 106%;
+        left: 50%;
+        transform: translateX(-50%);
+        &::after{
+          content: "";
+          position: absolute;
+          top: 12px;
+          left: 50%;
+          transform: translateX(-50%);
+          width: 90%;
+          height: 6px;
+          background: linear-gradient(to right,#ffc003,#ff4753);
+        }
+        li {
           position: relative;
           text-align: center;
-          padding-top: 50px;
+          padding-top: 44px;
+          flex:1;
+          &:nth-child(1):after {
+            background-color: #ffa811;
+          }
+          &:nth-child(2):after {
+            background-color: #ffb707;
+          }
+          &:nth-child(3):after {
+            background-color: #ffa811;
+          }
+          &:nth-child(4):after {
+            background-color: #ff961d;
+          }
+          &:nth-child(5):after {
+            background-color: #ff862c;
+          }
+          &:nth-child(6):after {
+            background-color: #ff7434;
+          }
+          &:nth-child(7):after {
+            background-color: #ff6849;
+          }
+          &:nth-child(8):after {
+            background-color: #ff514c;
+          }
+          &:nth-child(9):after {
+            background-color: #ff4753;
+          }
           &::after {
-            display: block;
+            content: "";
             width: 16px;
             height: 16px;
-            background-color: #ffc003;
-            border: 6px solid #fff;
-            border-radius: 50%;
-            box-shadow: 5px 5px 10px rgba(255, 105, 120, 0.36);
             position: absolute;
-            top: 15px;
+            top: 0;
             left: 50%;
             transform: translateX(-50%);
-            content: '',
+            border-radius: 50%;
+            border: 6px solid #fff;
+            box-shadow: 0 4px 20px 0 rgba(255, 105, 120, 0.36);
+            z-index: 1;
           }
         }
       }
@@ -317,7 +351,6 @@
           text-align: center;
         }
       }
-      
     }
   }
 }
diff --git a/src/styles/common.scss b/src/styles/common.scss
deleted file mode 100644
index 2df63c6..0000000
--- a/src/styles/common.scss
+++ /dev/null
@@ -1,132 +0,0 @@
-@import "styles/default.scss";
-
-body {
-  font: 14px/1.5 Hiragino Sans GB, Microsoft YaHei, \\5fae\8f6f\96c5\9ed1, arial,
-    \5b8b\4f53, sans-serif;
-}
-
-.w {
-  width: 1080px;
-  height: 100%;
-  margin: 0 auto;
-}
-
-.fl {
-  float: left;
-}
-
-.fr {
-  float: right;
-}
-
-.clearfix:before,
-.clearfix:after {
-  content: ".";
-  display: table;
-}
-
-.clearfix:after {
-  clear: both;
-}
-
-.clearfix {
-  *zoom: 1;
-}
-
-.show {
-  display: block;
-}
-
-.hide {
-  display: none;
-}
-
-.mline {
-  display: -webkit-box;
-  -webkit-box-orient: vertical;
-  -webkit-line-clamp: 3;
-  overflow: hidden;
-}
-
-.sline {
-  overflow: hidden;
-  text-overflow: ellipsis;
-  white-space: nowrap;
-}
-
-/*  center-vertical-row加到bootstrap的Row上 
-    center-vertical-col加到bootstrap的Col上
-    使列垂直居中
-*/
-.center-vertical-row {
-  font-size: 0;
-}
-
-.center-vertical-col {
-  display: inline-block;
-  float: none;
-  vertical-align: middle;
-  font-size: 14px;
-}
-
-/* flex */
-.flex-row {
-  display: flex;
-  flex-direction: row;
-}
-
-.flex-fill {
-  flex: auto;
-}
-
-@for $i from 1 through 12 {
-  .flex-#{$i} {
-    flex: 0 0 ($i * 8.33333%);
-    max-width: ($i * 8.33333%);
-  }
-}
-
-.justify-content-around {
-  justify-content: space-around;
-}
-
-.justify-content-between {
-  justify-content: space-between;
-}
-
-.flex-wrap {
-  flex-wrap: wrap;
-}
-
-.flex-nowrap {
-  flex-wrap: nowrap;
-}
-
-.flex-column {
-  display: flex;
-  flex-direction: column;
-}
-
-.justify-content-start {
-  justify-content: flex-start;
-}
-
-.justify-content-end {
-  justify-content: flex-end;
-}
-
-.justify-content-center {
-  justify-content: center;
-}
-
-.align-items-center {
-  align-items: center;
-}
-
-.align-items-start {
-  align-items: flex-start;
-}
-
-.align-items-end {
-  align-items: flex-end;
-}
diff --git a/src/styles/normalize.scss b/src/styles/normalize.scss
new file mode 100644
index 0000000..93d09bf
--- /dev/null
+++ b/src/styles/normalize.scss
@@ -0,0 +1,584 @@
+/*! normalize.css v8.0.1 | MIT License | github.com/necolas/normalize.css */
+
+/* Document
+   ========================================================================== */
+
+/**
+ * 1. Correct the line height in all browsers.
+ * 2. Prevent adjustments of font size after orientation changes in iOS.
+ */
+
+html {
+  line-height: 1.15; /* 1 */
+  -webkit-text-size-adjust: 100%; /* 2 */
+}
+
+/* Sections
+   ========================================================================== */
+
+/**
+ * Remove the margin in all browsers.
+ */
+
+body {
+  margin: 0;
+}
+
+/**
+ * Render the `main` element consistently in IE.
+ */
+
+main {
+  display: block;
+}
+
+/**
+ * Correct the font size and margin on `h1` elements within `section` and
+ * `article` contexts in Chrome, Firefox, and Safari.
+ */
+
+h1 {
+  font-size: 2em;
+  margin: 0.67em 0;
+}
+
+/* Grouping content
+   ========================================================================== */
+
+/**
+ * 1. Add the correct box sizing in Firefox.
+ * 2. Show the overflow in Edge and IE.
+ */
+
+hr {
+  box-sizing: content-box; /* 1 */
+  height: 0; /* 1 */
+  overflow: visible; /* 2 */
+}
+
+/**
+ * 1. Correct the inheritance and scaling of font size in all browsers.
+ * 2. Correct the odd `em` font sizing in all browsers.
+ */
+
+pre {
+  font-family: monospace, monospace; /* 1 */
+  font-size: 1em; /* 2 */
+}
+
+/* Text-level semantics
+   ========================================================================== */
+
+/**
+ * Remove the gray background on active links in IE 10.
+ */
+
+a {
+  background-color: transparent;
+}
+
+/**
+ * 1. Remove the bottom border in Chrome 57-
+ * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
+ */
+
+abbr[title] {
+  border-bottom: none; /* 1 */
+  text-decoration: underline; /* 2 */
+  text-decoration: underline dotted; /* 2 */
+}
+
+/**
+ * Add the correct font weight in Chrome, Edge, and Safari.
+ */
+
+b,
+strong {
+  font-weight: bolder;
+}
+
+/**
+ * 1. Correct the inheritance and scaling of font size in all browsers.
+ * 2. Correct the odd `em` font sizing in all browsers.
+ */
+
+code,
+kbd,
+samp {
+  font-family: monospace, monospace; /* 1 */
+  font-size: 1em; /* 2 */
+}
+
+/**
+ * Add the correct font size in all browsers.
+ */
+
+small {
+  font-size: 80%;
+}
+
+/**
+ * Prevent `sub` and `sup` elements from affecting the line height in
+ * all browsers.
+ */
+
+sub,
+sup {
+  font-size: 75%;
+  line-height: 0;
+  position: relative;
+  vertical-align: baseline;
+}
+
+sub {
+  bottom: -0.25em;
+}
+
+sup {
+  top: -0.5em;
+}
+
+/* Embedded content
+   ========================================================================== */
+
+/**
+ * Remove the border on images inside links in IE 10.
+ */
+
+img {
+  border-style: none;
+}
+
+/* Forms
+   ========================================================================== */
+
+/**
+ * 1. Change the font styles in all browsers.
+ * 2. Remove the margin in Firefox and Safari.
+ */
+
+button,
+input,
+optgroup,
+select,
+textarea {
+  font-family: inherit; /* 1 */
+  font-size: 100%; /* 1 */
+  line-height: 1.15; /* 1 */
+  margin: 0; /* 2 */
+}
+
+/**
+ * Show the overflow in IE.
+ * 1. Show the overflow in Edge.
+ */
+
+button,
+input {
+  /* 1 */
+  overflow: visible;
+}
+
+/**
+ * Remove the inheritance of text transform in Edge, Firefox, and IE.
+ * 1. Remove the inheritance of text transform in Firefox.
+ */
+
+button,
+select {
+  /* 1 */
+  text-transform: none;
+}
+
+/**
+ * Correct the inability to style clickable types in iOS and Safari.
+ */
+
+button,
+[type="button"],
+[type="reset"],
+[type="submit"] {
+  -webkit-appearance: button;
+}
+
+/**
+ * Remove the inner border and padding in Firefox.
+ */
+
+button::-moz-focus-inner,
+[type="button"]::-moz-focus-inner,
+[type="reset"]::-moz-focus-inner,
+[type="submit"]::-moz-focus-inner {
+  border-style: none;
+  padding: 0;
+}
+
+/**
+ * Restore the focus styles unset by the previous rule.
+ */
+
+button:-moz-focusring,
+[type="button"]:-moz-focusring,
+[type="reset"]:-moz-focusring,
+[type="submit"]:-moz-focusring {
+  outline: 1px dotted ButtonText;
+}
+
+/**
+ * Correct the padding in Firefox.
+ */
+
+fieldset {
+  padding: 0.35em 0.75em 0.625em;
+}
+
+/**
+ * 1. Correct the text wrapping in Edge and IE.
+ * 2. Correct the color inheritance from `fieldset` elements in IE.
+ * 3. Remove the padding so developers are not caught out when they zero out
+ *    `fieldset` elements in all browsers.
+ */
+
+legend {
+  box-sizing: border-box; /* 1 */
+  color: inherit; /* 2 */
+  display: table; /* 1 */
+  max-width: 100%; /* 1 */
+  padding: 0; /* 3 */
+  white-space: normal; /* 1 */
+}
+
+/**
+ * Add the correct vertical alignment in Chrome, Firefox, and Opera.
+ */
+
+progress {
+  vertical-align: baseline;
+}
+
+/**
+ * Remove the default vertical scrollbar in IE 10+.
+ */
+
+textarea {
+  overflow: auto;
+}
+
+/**
+ * 1. Add the correct box sizing in IE 10.
+ * 2. Remove the padding in IE 10.
+ */
+
+[type="checkbox"],
+[type="radio"] {
+  box-sizing: border-box; /* 1 */
+  padding: 0; /* 2 */
+}
+
+/**
+ * Correct the cursor style of increment and decrement buttons in Chrome.
+ */
+
+[type="number"]::-webkit-inner-spin-button,
+[type="number"]::-webkit-outer-spin-button {
+  height: auto;
+}
+
+/**
+ * 1. Correct the odd appearance in Chrome and Safari.
+ * 2. Correct the outline style in Safari.
+ */
+
+[type="search"] {
+  -webkit-appearance: textfield; /* 1 */
+  outline-offset: -2px; /* 2 */
+}
+
+/**
+ * Remove the inner padding in Chrome and Safari on macOS.
+ */
+
+[type="search"]::-webkit-search-decoration {
+  -webkit-appearance: none;
+}
+
+/**
+ * 1. Correct the inability to style clickable types in iOS and Safari.
+ * 2. Change font properties to `inherit` in Safari.
+ */
+
+::-webkit-file-upload-button {
+  -webkit-appearance: button; /* 1 */
+  font: inherit; /* 2 */
+}
+
+/* Interactive
+   ========================================================================== */
+
+/*
+ * Add the correct display in Edge, IE 10+, and Firefox.
+ */
+
+details {
+  display: block;
+}
+
+/*
+ * Add the correct display in all browsers.
+ */
+
+summary {
+  display: list-item;
+}
+
+/* Misc
+   ========================================================================== */
+
+/**
+ * Add the correct display in IE 10+.
+ */
+
+template {
+  display: none;
+}
+
+/**
+ * Add the correct display in IE 10.
+ */
+
+[hidden] {
+  display: none;
+}
+
+html,
+body,
+div,
+h1,
+h2,
+h3,
+h4,
+h5,
+h6,
+ul,
+ol,
+dl,
+li,
+dt,
+dd,
+p,
+blockquote,
+pre,
+form,
+fieldset,
+table,
+th,
+td {
+  border: none;
+  margin: 0px;
+  padding: 0px;
+}
+html,
+body {
+  height: 100%;
+  width: 100%;
+  /* font-family:"微软雅黑","黑体","宋体"; */
+  // font-size: 14px;
+  font: 14px/1.5 Hiragino Sans GB, Microsoft YaHei, \\5fae\8f6f\96c5\9ed1, arial,
+  \5b8b\4f53, sans-serif;
+}
+address,
+caption,
+cite,
+code,
+dfn,
+em,
+strong,
+th,
+var {
+  font-style: normal;
+  font-weight: normal;
+}
+a {
+  text-decoration: none;
+}
+a:link {
+  color: #fff;
+}
+a:visited {
+  color: #fff;
+}
+a:hover {
+  color: #fff;
+}
+a:active {
+  color: #fff;
+}
+input::-ms-clear {
+  display: none;
+}
+input::-ms-reveal {
+  display: none;
+}
+input {
+  -webkit-appearance: none;
+  margin: 0;
+  outline: none;
+  padding: 0;
+}
+input::-webkit-input-placeholder {
+  color: #ccc;
+}
+input::-ms-input-placeholder {
+  color: #ccc;
+}
+input::-moz-placeholder {
+  color: #ccc;
+}
+input[type="submit"],
+input[type="button"] {
+  cursor: pointer;
+}
+button[disabled],
+input[disabled] {
+  cursor: default;
+}
+img {
+  border: none;
+}
+ul,
+ol,
+li {
+  list-style-type: none;
+}
+
+/* flex */
+.flex-row {
+  display: flex;
+  flex-direction: row;
+}
+
+.flex-fill {
+  flex: auto;
+}
+
+@for $i from 1 through 12 {
+  .flex-#{$i} {
+    flex: 0 0 ($i * 8.33333%);
+    max-width: ($i * 8.33333%);
+  }
+}
+
+.justify-content-around {
+  justify-content: space-around;
+}
+
+.justify-content-between {
+  justify-content: space-between;
+}
+
+.flex-wrap {
+  flex-wrap: wrap;
+}
+
+.flex-nowrap {
+  flex-wrap: nowrap;
+}
+
+.flex-column {
+  display: flex;
+  flex-direction: column;
+}
+
+.justify-content-start {
+  justify-content: flex-start;
+}
+
+.justify-content-end {
+  justify-content: flex-end;
+}
+
+.justify-content-center {
+  justify-content: center;
+}
+
+.align-items-center {
+  align-items: center;
+}
+
+.align-items-start {
+  align-items: flex-start;
+}
+
+.align-items-end {
+  align-items: flex-end;
+}
+/*  center-vertical-row加到bootstrap的Row上 
+    center-vertical-col加到bootstrap的Col上
+    使列垂直居中
+*/
+.center-vertical-row {
+  font-size: 0;
+}
+
+.center-vertical-col {
+  display: inline-block;
+  float: none;
+  vertical-align: middle;
+  font-size: 14px;
+}
+
+/* 文本 */
+.mline {
+  display: -webkit-box;
+  -webkit-box-orient: vertical;
+  -webkit-line-clamp: 3;
+  overflow: hidden;
+}
+
+.sline {
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.text-center {
+  text-align: center;
+}
+
+/* 显示/隐藏 */
+.show {
+  display: block;
+}
+.hide {
+  display: none;
+}
+
+/* 浮动 */
+.fl {
+  float: left;
+}
+
+.fr {
+  float: right;
+}
+
+.clearfix:before,
+.clearfix:after {
+  content: ".";
+  display: table;
+}
+
+.clearfix:after {
+  clear: both;
+}
+
+.clearfix {
+  *zoom: 1;
+}
+
+/* 版心 */
+.w {
+  width: 1080px;
+  height: 100%;
+  margin: 0 auto;
+}
\ No newline at end of file
diff --git a/src/styles/reset.css b/src/styles/reset.css
deleted file mode 100644
index 4f330b3..0000000
--- a/src/styles/reset.css
+++ /dev/null
@@ -1,188 +0,0 @@
-body,
-ul,
-ol,
-dl,
-dd,
-h1,
-h2,
-h3,
-h4,
-h5,
-h6,
-figure,
-form,
-fieldset,
-legend,
-input,
-textarea,
-button,
-p,
-blockquote,
-th,
-td,
-pre,
-xmp {
-  margin: 0;
-  padding: 0;
-}
-body,
-input,
-textarea,
-button,
-select,
-pre,
-xmp,
-tt,
-code,
-kbd,
-samp {
-  line-height: 1.5;
-  font-family: tahoma, arial, "Hiragino Sans GB", simsun, sans-serif;
-}
-h1,
-h2,
-h3,
-h4,
-h5,
-h6,
-small,
-big,
-input,
-textarea,
-button,
-select {
-  font-size: 100%;
-}
-h1,
-h2,
-h3,
-h4,
-h5,
-h6 {
-  font-family: tahoma, arial, "Hiragino Sans GB", "微软雅黑", simsun, sans-serif;
-}
-h1,
-h2,
-h3,
-h4,
-h5,
-h6,
-b,
-strong {
-  font-weight: normal;
-}
-address,
-cite,
-dfn,
-em,
-i,
-optgroup,
-var {
-  font-style: normal;
-}
-table {
-  border-collapse: collapse;
-  border-spacing: 0;
-  text-align: left;
-}
-caption,
-th {
-  text-align: inherit;
-}
-ul,
-ol,
-menu {
-  list-style: none;
-}
-fieldset,
-img {
-  border: 0;
-}
-img,
-object,
-input,
-textarea,
-button,
-select {
-  vertical-align: middle;
-}
-article,
-aside,
-footer,
-header,
-section,
-nav,
-figure,
-figcaption,
-hgroup,
-details,
-menu {
-  display: block;
-}
-audio,
-canvas,
-video {
-  display: inline-block;
-  *display: inline;
-  *zoom: 1;
-}
-blockquote:before,
-blockquote:after,
-q:before,
-q:after {
-  content: "\0020";
-}
-textarea {
-  overflow: auto;
-  resize: vertical;
-}
-input,
-textarea,
-button,
-select,
-a {
-  outline: 0 none;
-  border: none;
-}
-button::-moz-focus-inner,
-input::-moz-focus-inner {
-  padding: 0;
-  border: 0;
-}
-mark {
-  background-color: transparent;
-}
-a,
-ins,
-s,
-u,
-del {
-  text-decoration: none;
-}
-sup,
-sub {
-  vertical-align: baseline;
-}
-html {
-  overflow-x: hidden;
-  height: 100%;
-  font-size: 50px;
-  -webkit-tap-highlight-color: transparent;
-}
-body {
-  font-family: Arial, "Microsoft Yahei", "Helvetica Neue", Helvetica, sans-serif;
-  color: #333;
-  font-size:14px;
-  line-height: 1;
-  -webkit-text-size-adjust: none;
-}
-hr {
-  height: 0.02rem;
-  margin: 0.1rem 0;
-  border: medium none;
-  border-top: 0.02rem solid #cacaca;
-}
-a {
-  color: #25a4bb;
-  text-decoration: none;
-}