feat: fontawesome, admonition and faster

assets/css/_core/_base.scss

@@ -0,0 +1,83 @@
+/** Font **/
+/* Lato */
+@import url(https://fonts.googleapis.com/css?family=Lato:100,300,400,700,900);
+
+/* Montserrat */
+@import url(https://fonts.googleapis.com/css?family=Montserrat:400,500,600,700,800);
+
+/* Roboto */
+@import url(https://fonts.googleapis.com/css?family=Roboto:400,900);
+
+html {
+  font-family: "Roboto", -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", STHeiti, "Microsoft Yahei", "WenQuanYi Micro Hei", Arial, Verdana, sans-serif;
+
+  /* scrollbar, only support webkit */
+  &::-webkit-scrollbar {
+    width: 8px;
+    height: 8px;
+  }
+
+  &::-webkit-scrollbar-thumb {
+    height: 40px;
+    background-color: #eee;
+    border-radius: 16px;
+
+    &:hover {
+      background-color: #C2C2C2;
+    }
+  }
+}
+
+::selection {
+  background: rgba(0, 149, 255, 0.1);
+}
+
+body {
+  font-size: 16px;
+  font-weight: 400;
+  line-height: 26px;
+  background-color: $global-background-color;
+  color: $global-font-color;
+
+  &:before {
+    content: "";
+    background-repeat: no-repeat;
+    background-position: center;
+    opacity: 0.05;
+    position: fixed;
+    top: 0;
+    left: 0;
+    width: 100%;
+    height: 100%;
+    z-index: -1;
+    -webkit-filter: grayscale(100%);
+    -moz-filter: grayscale(100%);
+    -ms-filter: grayscale(100%);
+    -o-filter: grayscale(100%);
+    filter: grayscale(100%);
+    filter: gray;
+  }
+
+  &.dark-theme {
+    color: $global-font-color-dark;
+    background-color: $global-background-color-dark;
+  }
+}
+
+a {
+  color: $global-link-color;
+  text-decoration: none;
+  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease, opacity 0.2s ease;
+
+  &:hover {
+    color: $global-link-hover-color;
+  }
+
+  .dark-theme & {
+    color: $global-link-color-dark;
+
+    &:hover {
+      color: $global-link-hover-color-dark;
+    }
+  }
+}