/* ------------------------------------
 * Paperline — Duox-inspired compact blog theme
 * --------------------------------- */

:root {
  --theme-background: #fff;
  --theme-text: #333;
  --theme-link: #3354aa;
  --theme-muted: #999;
  --theme-border: #eee;
  --theme-border-strong: #ddd;
  --theme-hover: #f6f6f6;
  --theme-container: 1140px;
  --theme-gutter: 12px;
}
/* ------------------------------------
 * AI deepseek
 * --------------------------------- */
/* 日间模式（默认） */

/* ------------------------------------
 * AI deepseek 结束
 * --------------------------------- */
/* ------------------
 * Global style
 * --------------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  background: var(--theme-background);
  scroll-behavior: smooth;
}

body {
  min-width: 280px;
  margin: 0;
  background: var(--theme-background);
  color: var(--theme-text);
  font-family: "LXGW Bright", "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.15;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--theme-link);
  text-decoration: none;
  transition: color 160ms ease, background-color 160ms ease;
}

a:hover,
a:focus-visible,
a:active {
  color: var(--theme-text);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid rgba(51, 84, 170, .35);
  outline-offset: 2px;
}

img,
svg,
video,
iframe,
embed,
object {
  max-width: 100%;
}

img,
video {
  height: auto;
}

button,
input,
select,
textarea {
  font: inherit;
}

pre,
code {
  background: #f3f3f3;
  font-family: Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: .92857em;
}

code {
  padding: 2px 4px;
  color: #b94a48;
  overflow-wrap: anywhere;
}

pre {
  max-width: 100%;
  margin: 1.5em 0;
  padding: 0;
  overflow: auto;
  border: 1px solid #30363d;
  border-left: 3px solid var(--theme-link);
  border-radius: 6px;
  background: #1f242b;
  color: #c9d1d9;
  white-space: normal;
  -webkit-overflow-scrolling: touch;
}

pre::before {
  display: block;
  padding: 9px 14px;
  border-bottom: 1px solid #30363d;
  background: #171b21;
  color: #8b949e;
  content: attr(data-language);
  font-family: Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: .75rem;
  letter-spacing: .04em;
  line-height: 1;
  text-transform: lowercase;
}

pre:not([data-language])::before {
  content: "code";
}

pre code {
  display: block;
  min-width: 0;
  padding: 9px 0 11px;
  background: transparent;
  color: #c9d1d9;
  counter-reset: code-line;
  font-size: .875rem;
  line-height: 1.3;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
  tab-size: 2;
}

pre code .code-line {
  position: relative;
  display: block;
  min-height: 1.3em;
  padding: 0 14px 0 3.25em;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
}

pre code .code-line::before {
  position: absolute;
  left: 0;
  width: 2.4em;
  padding-right: .6em;
  color: #6e7681;
  content: counter(code-line);
  counter-increment: code-line;
  font-variant-numeric: tabular-nums;
  text-align: right;
  user-select: none;
}

/* Lightweight local syntax colors emitted by the theme's CodeHighlight component. */
pre code .tok-comment {
  color: #8b949e;
  font-style: italic;
}

pre code .tok-string {
  color: #a5d6ff;
}

pre code .tok-keyword {
  color: #ff7b72;
  font-weight: 600;
}

pre code .tok-number {
  color: #79c0ff;
}

pre code .tok-function {
  color: #79c0ff;
}

pre code .tok-property {
  color: #ffa657;
}

pre code .tok-literal {
  color: #79c0ff;
  font-weight: 600;
}

pre code .tok-operator {
  color: #c9d1d9;
}

pre code .tok-tag {
  color: #7ee787;
}

blockquote {
  margin: 1em 0;
  padding-left: 1.5em;
  border-left: 4px solid var(--theme-border);
  color: #666;
}

table {
  width: 100%;
  border: 1px solid var(--theme-border-strong);
  border-collapse: collapse;
}

table th,
table td {
  padding: 5px 10px;
  border: 1px solid var(--theme-border);
  text-align: left;
}

table th {
  background: #f3f3f3;
}

input[type="text"],
input[type="email"],
input[type="url"],
input[type="password"],
textarea {
  width: 100%;
  padding: 5px 8px;
  border: 1px solid #e9e9e9;
  border-radius: 2px;
  background: #fff;
  color: var(--theme-text);
}

textarea {
  min-height: 9rem;
  resize: vertical;
}

.submit,
button.submit {
  min-height: 32px;
  padding: 5px 14px;
  border: 1px solid var(--theme-link);
  border-radius: 2px;
  background: var(--theme-link);
  color: #fff;
  cursor: pointer;
}

.submit:hover,
.submit:focus-visible,
button.submit:hover,
button.submit:focus-visible {
  background: var(--theme-text);
  color: #fff;
}

/* ------------------
 * Header
 * --------------- */

#header {
  padding-top: 32px;
  border-bottom: 1px solid var(--theme-border);
}

#header > .container,
#body > .container {
  width: min(calc(100% - 2 * var(--theme-gutter)), var(--theme-container));
  max-width: none;
  padding-right: 0;
  padding-left: 0;
}

#header .row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 0 24px;
  margin: 0;
}

/* The legacy grid adds clearfix pseudo-elements; Grid must not lay them out. */
#header .row::before,
#header .row::after,
#body .row::before,
#body .row::after {
  display: none;
}

#header .row > [class*="col-"],
#body .row > [class*="col-"] {
  float: none;
  padding-right: 0;
  padding-left: 0;
}

#header .site-name,
#header .site-search {
  width: auto;
}

#header .site-search {
  display: block;
  grid-column: 2;
  grid-row: 1;
}

#header .row > .col-mb-12:not(.site-name):not(.site-search) {
  grid-column: 1 / -1;
}

#logo {
  display: inline-block;
  max-width: 100%;
  color: var(--theme-text);
  font-size: 40px;
  font-weight: 400;
  line-height: 1.15;
  overflow-wrap: anywhere;
}

#logo:hover,
#logo:focus-visible {
  color: var(--theme-text);
}

#logo img {
  max-height: 64px;
}

.description {
  margin: .8em 0 0;
  color: var(--theme-muted);
  font-style: italic;
}

/* Search */

#search {
  position: relative;
  width: min(100%, 240px);
  margin: 0;
}

#search input {
  min-height: 30px;
  padding-right: 32px;
  border-color: var(--theme-border);
  border-radius: 0;
}

#search button {
  position: absolute;
  top: 50%;
  right: 4px;
  width: 24px;
  height: 24px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  direction: ltr;
  font-size: 0;
  color: transparent;
  transform: translateY(-50%);
}

#search button::before {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 10px;
  height: 10px;
  border: 1.5px solid var(--theme-muted);
  border-radius: 50%;
  content: "";
}

#search button::after {
  position: absolute;
  top: 14px;
  left: 15px;
  width: 6px;
  height: 1.5px;
  background: var(--theme-muted);
  content: "";
  transform: rotate(45deg);
  transform-origin: left center;
}

/* Navigation menu */

#header #nav-menu {
  display: flex;
  flex-wrap: nowrap;
  align-items: flex-end;
  width: 100%;
  margin: 32px 0 0;
  padding: 0 2px;
  overflow-x: auto;
  scrollbar-width: thin;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
}

#header #nav-menu a {
  display: block;
  flex: 0 0 auto;
  height: 34px;
  margin: 0 -1px 0 0;
  padding: 0 20px;
  border: 1px solid var(--theme-border);
  border-bottom: none;
  color: var(--theme-text);
  line-height: 33px;
}

#header #nav-menu a:hover,
#header #nav-menu a:focus-visible,
#header #nav-menu .current {
  background: var(--theme-hover);
  color: var(--theme-text);
}

/* ------------------
 * Main layout
 * --------------- */

#body {
  padding: 0;
}

#body .row {
  display: grid;
  grid-template-columns: minmax(0, 2.15fr) minmax(0, 1fr);
  align-items: start;
  gap: 40px;
  margin: 0;
}

#body .row:has(.error-page) {
  grid-template-columns: minmax(0, 1fr);
  max-width: 900px;
  margin-right: auto;
  margin-left: auto;
}

#body .row:has(.error-page) > [class*="col-"] {
  width: auto;
  margin-left: 0;
}

#body #main,
#body #secondary {
  width: auto;
  min-width: 0;
  margin-left: 0;
}

#body #main {
  grid-column: 1;
}

#body #secondary {
  display: block;
  grid-column: 2;
  grid-row: 1;
  padding-top: 15px;
  word-wrap: break-word;
}

/* The legacy grid hides these below 992px; this theme stacks them instead. */
#header .site-search.kit-hidden-tb,
#body #secondary.kit-hidden-tb {
  display: block;
}

.post {
  padding: 24px 0 32px;
  border-bottom: 1px solid var(--theme-border);
}

#main > .post + .post {
  padding-top: 32px;
}

.post-title {
  margin: 18.592px 0;
  color: var(--theme-text);
  font-size: 1.4em;
  font-weight: 400;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.post-title a {
  color: var(--theme-link);
}

.post-title a:hover,
.post-title a:focus-visible {
  color: var(--theme-text);
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  margin: 14.857px 0;
  padding: 0;
  color: var(--theme-muted);
  font-size: .92857em;
  line-height: 1.5;
  list-style: none;
}

.post-meta li {
  display: inline;
  margin: 0;
  padding: 0;
}

.post-meta li + li::before {
  margin: 0 .6em;
  color: var(--theme-muted);
  content: "/";
}

.post-meta a,
.post-content a,
.widget a,
.comment-content a,
.post-near a {
  color: var(--theme-link);
}

.post-meta a:hover,
.post-meta a:focus-visible,
.post-content a:hover,
.post-content a:focus-visible,
.widget a:hover,
.widget a:focus-visible,
.comment-content a:hover,
.comment-content a:focus-visible,
.post-near a:hover,
.post-near a:focus-visible {
  color: var(--theme-text);
}

.post-content,
.comment-content {
  line-height: 1.8;
  overflow-wrap: break-word;
  word-wrap: break-word;
}

/* Archive/home excerpts in the reference theme stay compact. Detail pages use h1. */
.post:has(h2.post-title) .post-content {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.post-content > :first-child,
.comment-content > :first-child {
  margin-top: 0;
}

.post-content > :last-child,
.comment-content > :last-child {
  margin-bottom: 0;
}

.post-content h2,
.comment-content h2 {
  font-size: 1.28571em;
}

.post-content p,
.comment-content p {
  margin: 1em 0;
}

.post-content ul,
.post-content ol,
.comment-content ul,
.comment-content ol {
  padding-left: 1.5em;
}

.post-content img,
.comment-content img,
.post-content video,
.comment-content video {
  display: block;
  max-width: 100%;
}

.post-content table {
  display: block;
  max-width: 100%;
  overflow-x: auto;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
}

.post-content hr,
.comment-content hr {
  width: 100px;
  margin: 2em auto;
  border: 1px solid #e9e9e9;
  border-width: 2px 0 0;
}

.post .tags {
  clear: both;
}

.archive-title {
  margin: 1em 0 -1em;
  padding-top: 20px;
  color: var(--theme-muted);
  font-size: 1em;
  font-weight: 400;
}

.more {
  text-align: center;
}

.more a {
  border: none;
}

.protected .text {
  width: min(100%, 50%);
}

/* Page nav */

.page-navigator {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px;
  margin: 25px 0;
  padding: 0;
  list-style: none;
  text-align: center;
}

.page-navigator li,
.page-navigator span,
.page-navigator a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  padding: 0 10px;
  line-height: 30px;
}

.page-navigator a:hover,
.page-navigator a:focus-visible,
.page-navigator .current,
.page-navigator span.current {
  background: var(--theme-border);
  color: var(--theme-text);
}

/* ------------------
 * Comment list
 * --------------- */

#comments {
  padding-top: 15px;
}

#comments > h3,
#response {
  margin: 18.72px 0;
  font-size: 1.17em;
  line-height: 1.15;
}

.comment-list,
.comment-list ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

.comment-list li {
  margin-top: 10px;
  padding: 14px;
  border: 1px solid var(--theme-border);
}

.comment-list li.comment-level-odd {
  background: #f6f6f3;
}

.comment-list li.comment-level-even {
  background: #fff;
}

.comment-list li.comment-by-author {
  background: #fff9e8;
}

.comment-list li .comment-reply {
  text-align: right;
  font-size: .92857em;
}

.comment-meta {
  color: var(--theme-muted);
  font-size: .92857em;
}

.comment-meta a {
  color: var(--theme-muted);
}

.comment-author {
  display: block;
  min-height: 40px;
  margin-bottom: 3px;
  color: var(--theme-text);
}

.comment-author .avatar {
  float: left;
  width: 40px;
  height: 40px;
  margin-right: 10px;
}

.comment-author cite {
  font-weight: 700;
  font-style: normal;
}

.comment-list .respond {
  margin-top: 15px;
  border-top: 1px solid var(--theme-border);
}

.respond .cancel-comment-reply {
  float: right;
  margin-top: 15px;
  font-size: .92857em;
}

#comment-form label {
  display: block;
  margin-bottom: .5em;
  font-weight: 700;
}

#comment-form .required::after {
  color: #c00;
  content: " *";
}

/* ------------------
 * Secondary and footer
 * --------------- */

#secondary {
  word-wrap: break-word;
}

.widget {
  margin-bottom: 30px;
}

.widget-title {
  margin: 18.72px 0;
  color: var(--theme-text);
  font-size: 1.17em;
  font-weight: 400;
  line-height: 1.15;
}

.widget-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.widget-list li {
  margin: 5px 0;
  line-height: 1.6;
}

.widget-list li ul {
  margin-left: 15px;
}

.logout-form {
  display: inline;
  margin: 0;
  padding: 0;
}

.logout-form button {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--theme-link);
  cursor: pointer;
  font: inherit;
}

.logout-form button:hover,
.logout-form button:focus-visible,
.logout-form button:active {
  color: var(--theme-text);
}

#footer {
  width: min(calc(100% - 2 * var(--theme-gutter)), var(--theme-container));
  margin: 0 auto;
  padding: 3em 0;
  color: var(--theme-muted);
  line-height: 1.5;
  text-align: center;
}

.error-page {
  margin: 100px 0;
}

/* -----------------
 * Misc
 * -------------- */

.aligncenter,
div.aligncenter {
  display: block;
  margin-right: auto;
  margin-left: auto;
}

.alignleft {
  float: left;
}

.alignright {
  float: right;
}

img.alignleft {
  margin: 0 15px 0 0;
}

img.alignright {
  margin: 0 0 0 15px;
}

/* -----------------
 * Responsive
 * -------------- */

@media (max-width: 767px) {
  #header {
    padding-top: 24px;
    text-align: center;
  }

  #header .row {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  #header .site-search {
    grid-column: 1;
    grid-row: auto;
    width: min(100%, 240px);
    margin: 18px auto 0;
  }

  #header #nav-menu {
    margin-top: 32px;
    padding-right: 0;
    padding-left: 0;
    text-align: left;
  }

  #header #nav-menu a {
    padding-right: 20px;
    padding-left: 20px;
  }

  #body .row {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  #body #main,
  #body #secondary {
    grid-column: 1;
    grid-row: auto;
  }

  #body #secondary {
    margin-top: 30px;
    padding-top: 15px;
    border-top: 1px solid var(--theme-border);
  }

  .post-title {
    font-size: 1.35em;
  }

  .post-meta {
    align-items: baseline;
  }

  .page-navigator {
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
  }

  .protected .text {
    width: 100%;
  }

  pre code .code-line {
    font-size: .8125rem;
    padding-right: 12px;
    padding-left: 2.8em;
  }

  pre code .code-line::before {
    width: 2.05em;
    padding-right: .45em;
  }

  .alignleft,
  .alignright {
    float: none;
    display: block;
    margin-right: 0;
    margin-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  a {
    transition: none;
  }
}

/*
 * Hide from both screenreaders and browsers: h5bp.com/u
 */
.hidden {
  display: none !important;
  visibility: hidden;
}

/*
 * Hide only visually, but have it available for screenreaders: h5bp.com/v
 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  border: 0;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.sr-only.focusable:active,
.sr-only.focusable:focus {
  position: static;
  width: auto;
  height: auto;
  margin: 0;
  overflow: visible;
  clip: auto;
  white-space: normal;
}

.invisible {
  visibility: hidden;
}