diff --git a/assets/css/custom.css b/assets/css/custom.css
index 9366e48..9e2261e 100644
--- a/assets/css/custom.css
+++ b/assets/css/custom.css
@@ -50,90 +50,3 @@ code {
     justify-content: center;
   }
 }
-
-.option-lang {
-  background-color: black;
-}
-
-.markdown-alert {
-  padding: 0.5rem 1rem;
-  margin: 1rem 0;
-  border-left: 0.25em solid;
-  background-color: transparent;
-}
-
-.markdown-alert > :first-child {
-  margin-top: 0;
-}
-
-.markdown-alert > :last-child {
-  margin-bottom: 0;
-}
-
-.markdown-alert-title {
-  display: flex;
-  align-items: center;
-  gap: 0.35rem;
-  font-weight: 600;
-  margin-bottom: 0.5rem;
-}
-
-.markdown-alert-icon {
-  fill: currentColor;
-  flex-shrink: 0;
-}
-
-.markdown-alert-note {
-  border-left-color: #0969da;
-}
-
-.markdown-alert-note .markdown-alert-title {
-  color: #0969da;
-}
-
-.markdown-alert-tip {
-  border-left-color: #1a7f37;
-}
-
-.markdown-alert-tip .markdown-alert-title {
-  color: #1a7f37;
-}
-
-.markdown-alert-important {
-  border-left-color: #8250df;
-}
-
-.markdown-alert-important .markdown-alert-title {
-  color: #8250df;
-}
-
-.markdown-alert-warning {
-  border-left-color: #9a6700;
-}
-
-.markdown-alert-warning .markdown-alert-title {
-  color: #9a6700;
-}
-
-.markdown-alert-caution {
-  border-left-color: #cf222e;
-}
-
-.markdown-alert-caution .markdown-alert-title {
-  color: #cf222e;
-}
-
-.toc {
-  padding: 1rem;
-  margin: 1rem 0 2rem;
-  border-left: 0.25rem solid #30363d;
-  background: rgba(110, 118, 129, 0.1);
-}
-
-.toc ul {
-  margin-bottom: 0;
-}
-
-.toc a {
-  text-decoration: none;
-}
diff --git a/assets/css/style.css b/assets/css/style.css
new file mode 100644
index 0000000..4cff69e
--- /dev/null
+++ b/assets/css/style.css
@@ -0,0 +1,484 @@
+/*
+ * Use GitHub Dark Theme combined with Jekyll Theme Hacker
+ */
+
+body {
+  margin: 0;
+  padding: 0;
+  background-color: #0d1117;
+  color: #f0f6fc;
+  font-size: 16px;
+  line-height: 1.5;
+  font-family: Monaco, "Bitstream Vera Sans Mono", "Lucida Console", Terminal, monospace
+}
+
+.container {
+  width: 90%;
+  max-width: 1000px;
+  margin: 0 auto
+}
+
+section {
+  display: block;
+  margin: 0 0 20px 0
+}
+
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
+  margin: 0 0 20px
+}
+
+li {
+  line-height: 1.4
+}
+
+header {
+  background: rgba(0, 0, 0, 0.3);
+  width: 100%;
+  border-bottom: 1px dashed #b5e853;
+  padding: 20px 0;
+  margin: 0 0 40px 0
+}
+
+header h1 {
+  font-size: 30px;
+  line-height: 1.5;
+  margin: 0 0 0 -40px;
+  font-weight: bold;
+  font-family: Monaco, "Bitstream Vera Sans Mono", "Lucida Console", Terminal, monospace;
+  color: #b5e853;
+  text-shadow: 0 1px 1px rgba(0, 0, 0, 0.1), 0 0 5px rgba(181, 232, 83, 0.1), 0 0 10px rgba(181, 232, 83, 0.1);
+  letter-spacing: -1px;
+  -webkit-font-smoothing: antialiased
+}
+
+@media (max-width: 1000px) {
+  header h1 {
+    margin-left: 0
+  }
+}
+
+header h1:before {
+  content: "./ ";
+  font-size: 24px
+}
+
+header h2 {
+  font-size: 18px;
+  font-weight: 300;
+  color: #666
+}
+
+#downloads .btn {
+  display: inline-block;
+  text-align: center;
+  margin: 0
+}
+
+#main_content {
+  width: 100%;
+  -webkit-font-smoothing: antialiased
+}
+
+section img {
+  max-width: 100%
+}
+
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
+  font-weight: normal;
+  font-family: Monaco, "Bitstream Vera Sans Mono", "Lucida Console", Terminal, monospace;
+  color: #b5e853;
+  letter-spacing: -0.03em;
+  text-shadow: 0 1px 1px rgba(0, 0, 0, 0.1), 0 0 5px rgba(181, 232, 83, 0.1), 0 0 10px rgba(181, 232, 83, 0.1)
+}
+
+#main_content h1, h2, h3, h4, h5, h6 {
+  font-weight:  bold;
+}
+
+#main_content h1 {
+  font-size: 30px;
+  border-bottom: 1px solid #3d444db3;
+  padding-bottom: .3em;
+}
+
+#main_content h2 {
+  font-size: 24px;
+  border-bottom: 1px solid #3d444db3;
+  padding-bottom: .3em;
+}
+
+#main_content h3 {
+  font-size: 18px
+}
+
+#main_content h4 {
+  font-size: 14px
+}
+
+#main_content h5 {
+  font-size: 12px;
+  text-transform: uppercase;
+  margin: 0 0 5px 0
+}
+
+#main_content h6 {
+  font-size: 12px;
+  text-transform: uppercase;
+  color: #999;
+  margin: 0 0 5px 0
+}
+
+dt {
+  font-style: italic;
+  font-weight: bold
+}
+
+ul li {
+  list-style-image: url("../images/bullet.png")
+}
+
+blockquote {
+  color: #9198a1;
+  padding: 0 1em;
+  border-left: .25em solid #3d444d;
+}
+
+/* code block */
+pre {
+  background: #151b23;
+  padding: 10px;
+  font-size: 16px;
+  color: #b5e853;
+  border-radius: 3px;
+  word-wrap: normal;
+  overflow: auto;
+  overflow-y: hidden;
+}
+
+/* inline code */
+code.highlighter-rouge {
+  font-size: 95%;
+  white-space: break-spaces;
+  background: #656c7633;
+  border: 1px solid rgba(255, 255, 255, 0.15);
+  padding: 0px 3px;
+  margin: 0;
+  border-radius: 6px;
+}
+
+table {
+  width: 100%;
+  margin: 0 0 20px 0
+}
+
+th {
+  text-align: left;
+  border-bottom: 1px dashed #b5e853;
+  padding: 5px 10px
+}
+
+td {
+  padding: 5px 10px
+}
+
+hr {
+  height: 0;
+  border: 0;
+  border-bottom: 1px dashed #b5e853;
+  color: #b5e853
+}
+
+.btn {
+  display: inline-block;
+  background: -webkit-linear-gradient(top, rgba(40, 40, 40, 0.3), rgba(35, 35, 35, 0.3) 50%, rgba(10, 10, 10, 0.3) 50%, rgba(0, 0, 0, 0.3));
+  padding: 8px 18px;
+  border-radius: 50px;
+  border: 2px solid rgba(0, 0, 0, 0.7);
+  border-bottom: 2px solid rgba(0, 0, 0, 0.7);
+  border-top: 2px solid #000;
+  color: rgba(255, 255, 255, 0.8);
+  font-family: Helvetica, Arial, sans-serif;
+  font-weight: bold;
+  font-size: 13px;
+  text-decoration: none;
+  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.75);
+  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05)
+}
+
+.btn:hover {
+  background: -webkit-linear-gradient(top, rgba(40, 40, 40, 0.6), rgba(35, 35, 35, 0.6) 50%, rgba(10, 10, 10, 0.8) 50%, rgba(0, 0, 0, 0.8))
+}
+
+.btn .icon {
+  display: inline-block;
+  width: 16px;
+  height: 16px;
+  margin: 1px 8px 0 0;
+  float: left
+}
+
+.btn-github .icon {
+  opacity: 0.6;
+  background: url("../images/blacktocat.png") 0 0 no-repeat
+}
+
+/* href */
+a {
+  color: #4493f8;
+  text-shadow: 0 0 5px rgba(80, 155, 255, 0.5);
+}
+
+.cf:before,
+.cf:after {
+  content: "";
+  display: table
+}
+
+.cf:after {
+  clear: both
+}
+
+.cf {
+  zoom: 1
+}
+
+#a-title {
+  text-decoration: none
+}
+
+/*
+ * Code highlighting in code block
+ */
+
+.highlight {
+  color: #f0f6fc
+}
+
+.highlight table td {
+  padding: 5px
+}
+
+.highlight table pre {
+  margin: 0
+}
+
+.highlight .w {
+  color: #f0f6fc
+}
+
+.highlight .err {
+  color: #151515;
+  background-color: #ed1b1d
+}
+
+/* comment */
+.highlight .c,
+.highlight .cd,
+.highlight .cm,
+.highlight .c1,
+.highlight .cs {
+  color: #9198a1
+}
+
+/* preprocessor */
+.highlight .cp {
+  color: #ffa930
+}
+
+/* operator */
+.highlight .o,
+.highlight .ow {
+  color: #ff7b72
+}
+
+/* plaintext */
+.highlight .p,
+.highlight .pi {
+  color: #f0f6fc
+}
+
+/* generic inserted */
+.highlight .gi {
+  color: #60d673
+}
+
+/* generic deleted */
+.highlight .gd {
+  color: #ff5a59
+}
+
+/* generic header */
+.highlight .gh {
+  color: #d2a8ff;
+  font-weight: bold
+}
+
+/* keyword */
+.highlight .k,
+.highlight .kn,
+.highlight .kp,
+.highlight .kr,
+.highlight .kv {
+  color: #ff7b72
+}
+
+/* keyword type */
+.highlight .kc,
+.highlight .kt,
+.highlight .kd {
+  color: #ff7b72
+}
+
+/* string */
+.highlight .s,
+.highlight .sb,
+.highlight .sc,
+.highlight .sd,
+.highlight .s2,
+.highlight .sh,
+.highlight .sx,
+.highlight .s1 {
+  color: #a5d6ff
+}
+
+/* regex */
+.highlight .sr {
+  color: #99F2e3
+}
+
+/* string escape */
+.highlight .si,
+.highlight .se {
+  color: #ff7b72
+}
+
+/* namespace / class name / ... */
+.highlight .highlight .nn,
+.highlight .nc,
+.highlight .no {
+  color: #d2a8ff
+}
+
+/* label tag */
+.highlight .nt {
+  color: #7ee787
+}
+
+/* label attribute */
+.highlight .na {
+  color: #79c0ff
+}
+
+/* literal */
+.highlight .m,
+.highlight .mf,
+.highlight .mh,
+.highlight .mi,
+.highlight .il,
+.highlight .mo,
+.highlight .mb,
+.highlight .mx {
+  color: #79c0ff
+}
+
+/* symbol / atom */
+.highlight .ss {
+  color: #a5d6ff
+}
+
+.option-lang {
+  background-color: black;
+}
+
+.markdown-alert {
+  padding: 0.5rem 1rem;
+  margin: 1rem 0;
+  border-left: 0.25em solid;
+  background-color: transparent;
+}
+
+.markdown-alert > :first-child {
+  margin-top: 0;
+}
+
+.markdown-alert > :last-child {
+  margin-bottom: 0;
+}
+
+.markdown-alert-title {
+  display: flex;
+  align-items: center;
+  gap: 0.35rem;
+  font-weight: 600;
+  margin-bottom: 0.5rem;
+}
+
+.markdown-alert-icon {
+  fill: currentColor;
+  flex-shrink: 0;
+}
+
+.markdown-alert-note {
+  border-left-color: #0969da;
+}
+
+.markdown-alert-note .markdown-alert-title {
+  color: #0969da;
+}
+
+.markdown-alert-tip {
+  border-left-color: #1a7f37;
+}
+
+.markdown-alert-tip .markdown-alert-title {
+  color: #1a7f37;
+}
+
+.markdown-alert-important {
+  border-left-color: #8250df;
+}
+
+.markdown-alert-important .markdown-alert-title {
+  color: #8250df;
+}
+
+.markdown-alert-warning {
+  border-left-color: #9a6700;
+}
+
+.markdown-alert-warning .markdown-alert-title {
+  color: #9a6700;
+}
+
+.markdown-alert-caution {
+  border-left-color: #cf222e;
+}
+
+.markdown-alert-caution .markdown-alert-title {
+  color: #cf222e;
+}
+
+.toc {
+  padding: 1rem;
+  margin: 1rem 0 2rem;
+  border-left: 0.25rem solid #30363d;
+  background: rgba(110, 118, 129, 0.1);
+}
+
+.toc ul {
+  margin-bottom: 0;
+}
+
+.toc a {
+  text-decoration: none;
+}