feat: refine footer

src/theme/index.tsx

@@ -0,0 +1,53 @@
+import styled, { createGlobalStyle } from 'styled-components';
+import { mobile } from '../util/css';
+
+export const GlobalStyle = createGlobalStyle`
+* {
+  box-sizing: border-box;
+  margin: 0;
+  padding: 0;
+}
+
+html {
+  font-size: 100%;
+}
+
+body {
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
+    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
+    sans-serif;
+  line-height: 1.625em;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+  background: #ffffff;
+
+  ${mobile} {
+    background: #f5f5f5;
+  }
+}
+`;
+
+export const Content = styled.div`
+  padding-top: 100px;
+
+  ${mobile} {
+    padding-top: 60px;
+  }
+`;
+
+export const Header = styled.header`
+  padding: 0 40px;
+  background-image: linear-gradient(180deg, #bda2ff 0%, #1b24cc 99%);
+
+  ${mobile} {
+    padding: 0 20px;
+  }
+`;
+
+export const Section = styled.div`
+  padding: 100px 20vw;
+
+  ${mobile} {
+    padding: 60px 40px;
+  }
+`;