:root {
  --accent: #2337ff;
  --accent-dark: #000d8a;
  --black: 15, 18, 25;
  --gray: 96, 115, 159;
  --gray-light: 229, 233, 240;
  --gray-dark: 34, 41, 57;
  --gray-gradient: rgba(var(--gray-light), 50%), #fff;
  --box-shadow: 0 2px 6px rgba(var(--gray), 25%), 0 8px 24px rgba(var(--gray), 33%), 0 16px 32px rgba(var(--gray), 33%);

  --font-default: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Lato, Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-text: var(--font-default);
  --font-family: var(--font-text);
  --code-font-family: Menlo, Monaco, Consolas, Courier New, monospace;

  --active-color: #3645d9;
  --border-color: #ccc;
  --title-color: #000;
  --content-color: #000;
  --secondary-color: #333;
  --gray-background-color: #f6f6f6;
  --body-background-color: #fff;
  --content-font-size: 14px;
}

html {
  font-size: 14px;
  text-size-adjust: 100%;
  text-rendering: optimizelegibility;
  -webkit-font-smoothing: antialiased;
}

* {
  box-sizing: border-box;
}

body,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
code,
form,
fieldset,
legend,
input,
textarea,
p,
blockquote,
th,
td,
hr,
button,
article,
aside,
details,
figcaption,
figure,
footer,
header,
menu,
nav,
section {
  margin: 0;
  padding: 0;
}

article,
aside,
details,
figcaption,
figure,
footer,
header,
menu,
nav,
section {
  display: block;
}

audio,
canvas,
video {
  display: inline-block;
}

button,
input,
select,
textarea {
  font: 400 1em/1.8 var(--font-family);
}

button::-moz-focus-inner,
input::-moz-focus-inner {
  padding: 0;
  border: 0;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
  width: 100%;
  display: table;
  overflow: auto;
}

body {
  font-family: var(--font-family);
  margin: 0;
  padding: 0;
  text-align: left;
  background: var(--body-background-color);
  background-size: 100% 600px;
  word-wrap: break-word;
  overflow-wrap: break-word;
  color: #000;
  line-height: 1.7;
  font-size: 14px;
  position: relative;
  min-height: 100vh;
}

main {
  width: 720px;
  margin: auto;
  padding: 3em 1em;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 1.5em 0 1em;
  color: rgb(var(--black));
  line-height: 1.2;
  font-weight: 400;
}

strong,
b {
  font-weight: 700;
  color: #000;
}

p {
  margin-bottom: 1em;
}

a {
  color: inherit;
  text-decoration: none;
  transition: 0.5s;
}

a:hover {
  color: var(--active-color);
}

.typo a {
  border-bottom: 1px solid;
}

textarea {
  width: 100%;
  font-size: 16px;
}

input {
  font-size: 16px;
}

img {
  max-width: 100%;
  height: auto;
}

code {
  padding: 2px 5px;
  border-radius: 2px;
  font-family: var(--font-text);
}

pre {
  padding: 1.5em;
  border-radius: 8px;
}

blockquote {
  position: relative;
  font-weight: 400;
  padding: 16px 20px;
  margin: 24px 0;
  background-color: var(--gray-background-color);
  border-left: 3px solid var(--border-color);
  font-style: italic;
}

.typo blockquote > p:last-of-type,
.typo blockquote > ul:last-of-type {
  margin-bottom: 0;
}

@media only screen and (max-width: 640px) {
  blockquote {
    margin: 1em 0;
  }
}

hr {
  border: none;
  border-bottom: 1px solid #cfcfcf;
  margin-bottom: 0.8em;
  height: 10px;
}

small,
figcaption {
  font-size: 0.9em;
  color: #888;
}

sup,
sub {
  font-size: 75%;
  line-height: 0;
  position: relative;
}

:root sup {
  top: -0.5em;
  vertical-align: baseline;
}

:root sub {
  bottom: -0.25em;
  vertical-align: baseline;
}

mark {
  background: #fffdd1;
  border-bottom: 1px solid #ffedce;
  padding: 2px;
  margin: 0 5px;
}

.wrap {
  width: 100%;
  margin-left: auto;
  box-sizing: border-box;
  margin-right: auto;
  padding-left: 16px;
  padding-right: 16px;
}

@media (min-width: 600px) {
  .wrap {
    padding-left: 24px;
    padding-right: 24px;
  }
}

@media (min-width: 900px) {
  .wrap {
    max-width: 900px;
  }
}

.container {
  padding-bottom: 180px;
  padding-top: 20px;
  min-height: 400px;
}

.header {
  position: relative;
  width: 100%;
  margin-bottom: 100px;
  background-color: #eee;
}

.site-name {
  font-size: 22px;
  line-height: 22px;
  margin: 0 0 20px;
  font-weight: 400;
  padding-top: 30px;
  font-family: var(--code-font-family);
  font-style: italic;
}

.site-slogan {
  margin: 0;
  font-size: 15px;
  line-height: 25.5px;
  padding-bottom: 40px;
  font-style: italic;
}

.site-nav ul {
  padding: 0;
  list-style: none;
  display: flex;
  margin: 0 0 0 -20px;
}

.site-nav ul li {
  display: inline;
}

.header a {
  color: inherit;
  display: inline-block;
  text-decoration: none;
  padding: 20px;
}

.header a:hover {
  color: var(--active-color);
  box-shadow: inset 0 -2px 0 var(--accent);
}

.header a.active {
  color: var(--active-color);
  box-shadow: none;
}

.header .nav-icon {
  width: 1em;
  height: 1em;
  fill: currentColor;
  display: inline-block;
  flex: 0 0 auto;
  font-size: 1.25rem;
  padding-right: 0.5em;
  margin-right: 0;
  box-sizing: content-box;
  vertical-align: middle;
  margin-top: -2px;
}

@media screen and (max-width: 420px) {
  .header .nav-icon {
    display: none;
  }
}

.typo p,
.typo ul,
.typo ol,
.typo dl,
.typo form,
.typo table,
.typo blockquote {
  color: var(--content-color);
  margin-bottom: 1.2em;
  line-height: 2em;
  overflow-wrap: break-word;
}

.typo h1,
.typo h2,
.typo h3,
.typo h4,
.typo h5,
.typo h6 {
  margin: 1.5em 0 1em;
  line-height: 1.7;
  color: var(--title-color);
}

.typo > h1:first-of-type {
  margin-top: 0;
}

.typo > .title {
  margin-bottom: 0;
}

.typo > .info {
  font-size: 12px;
  color: var(--secondary-color);
  padding: 10px 0;
  list-style: none;
  margin-bottom: 20px;
}

.typo > .info > span {
  margin-right: 10px;
  margin-bottom: 5px;
  display: inline-block;
}

.typo > .info .tags a:not(:last-of-type) {
  margin-right: 0.6em;
}

.typo h1 {
  font-size: 22px;
  border-bottom: 1px solid #d1d1d1;
}

.typo h2 {
  font-size: 20px;
  border-bottom: 1px dotted #d1d1d1;
}

.typo h3 {
  font-size: 18px;
  border-bottom: 1px dotted #d1d1d1;
}

.typo h4 {
  font-size: 16px;
  font-weight: 600;
}

.typo h5 {
  font-size: 1em;
  font-weight: 600;
}

.typo h6 {
  font-size: 0.9em;
  font-weight: 600;
}

.typo ul {
  margin-left: 1.2em;
  list-style: disc;
  list-style-position: outside;
}

.typo ol {
  list-style: decimal;
  margin-left: 1.2em;
  list-style-position: outside;
}

.typo li ul,
.typo li ol {
  margin-bottom: 0.8em;
  margin-left: 2em;
}

.typo li ul {
  list-style: circle;
}

.typo table th,
.typo table td {
  border: 1px solid #ddd;
  padding: 0.25em 0.5em;
  font-size: 0.9em;
}

.typo table th {
  background: #fbfbfb;
}

.typo table td {
  vertical-align: baseline;
}

.typo table thead th {
  background: #f1f1f1;
}

.typo em,
.typo i {
  font-style: italic;
}

.typo img {
  max-width: 100%;
  display: block;
  margin: 0 auto;
}

.typo pre > code {
  font-family: var(--code-font-family);
  font-size: 14px;
  display: block;
  padding: 0;
  background: transparent !important;
}

.typo pre code.hljs,
.typo pre .hljs {
  background: transparent !important;
}

.typo li code,
.typo p code {
  white-space: pre-wrap;
  padding: 0.2em 0.4em;
  background-color: #1b1f230d;
  border-radius: 2px;
}

.typo pre {
  white-space: pre;
  overflow: auto;
  margin-bottom: 1.2em;
  border-radius: 6px;
  line-height: 22px;
  padding: 14px 16px;
  background-color: #f6f8fa;
  border: 1px solid #d0d7de;
}

.typo .tip {
  border: 1px solid #aaa;
  border-left: 2px solid #aaa;
  padding: 0.5em 1em;
  margin-bottom: 1em;
}

.typo .tip :last-child {
  margin-bottom: 0;
}

.overflow-x-scroll {
  overflow-x: auto;
}

.post-list {
  margin-top: 45px;
}

.post-list-header {
  padding-top: 20px;
  margin-bottom: 10px;
  line-height: 1.5em;
  font-size: 16px;
  display: flex;
  align-items: center;
}

.m-list {
  margin: 10px 0;
}

.list-item {
  list-style: none;
  text-indent: 0;
  border-bottom: 1px dashed var(--border-color);
}

.list-item:hover {
  background-color: #f8f8f8;
}

.post-title {
  color: inherit;
  display: inline;
  line-height: 40px;
}

.post-date {
  float: left;
  line-height: 40px;
  font-size: 12px;
  padding-right: 20px;
  color: var(--secondary-color);
  font-family: Courier;
}

.m-list a {
  line-height: 40px;
  display: block;
  text-decoration: none;
  overflow: hidden;
  border: none;
}

.list-header-icon {
  width: 1em;
  height: 1em;
  fill: currentColor;
  flex: 0 0 auto;
  font-size: 1.5rem;
  margin-right: 0.5em;
  vertical-align: middle;
}

@media screen and (max-width: 500px) {
  .list-item .post-title {
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin: 0;
  }

  .list-item .post-date {
    display: none;
  }
}

.tag-list {
  margin-bottom: 20px;
}

.tag-list > a {
  border: 1px solid #ddd;
  box-sizing: border-box;
  font-size: 12px;
  font-weight: 400;
  padding: 2px 10px;
  display: inline-block;
  margin-right: 5px;
  margin-bottom: 5px;
}

.tag-list > a:hover,
.tag-list > a.active {
  color: #fff;
  background-color: #000;
}

.more {
  margin-top: 2em;
}

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #000000e6;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
  z-index: 100;
}

.overlay img {
  max-width: 90%;
  max-height: 90%;
}

.message-global {
  position: fixed;
  bottom: 20px;
  left: 20px;
  z-index: 1000;
  padding: 12px 20px;
  border-radius: 4px;
  font-size: 13px;
  background-color: #fff;
  border: 1px solid var(--border-color);
  box-shadow: 0 2px 12px #0000001a;
  font-family: var(--code-font-family);
}

.message-global.primary {
  color: var(--content-color);
  border-color: var(--accent);
}

.message-global.success {
  color: #2e7d32;
  border-color: #2e7d32;
}

.message-global.error {
  color: #d32f2f;
  border-color: #d32f2f;
}

.top-btn {
  position: fixed;
  bottom: 60px;
  right: 30px;
  cursor: pointer;
  background: #eee;
  border: none;
  border-radius: 3px;
  width: 40px;
  height: 40px;
  line-height: 40px;
  text-align: center;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
}

.top-btn:hover {
  background: #999;
}

.top-btn svg {
  width: 21px;
  height: 21px;
  fill: currentColor;
}

@media screen and (max-width: 768px) {
  .top-btn {
    bottom: 20px;
    right: 20px;
    width: 36px;
    height: 36px;
  }
}

.footer {
  color: #333;
  background-color: #eee;
  font-size: 0.8em;
  bottom: 0;
  left: 0;
  right: 0;
  position: absolute;
}

.copyright {
  color: inherit;
  padding: 15px 0;
}

.copyright p {
  height: 15px;
  line-height: 15px;
  font-family: var(--code-font-family);
}

@media print {
  .top-btn {
    display: none;
  }
}