@import url("https://fonts.googleapis.com/css2?family=Roboto+Mono:wght@300;400;500;600;700&display=swap");

/* ==========================================================================
   0) 右下角 Back to bottom 浮動按鈕
   - 保留 Material 內建的置頂按鈕，另外補一顆右下角的頁尾快捷鍵
   ========================================================================== */

.peicd-scroll-bottom {
  align-items: center;
  appearance: none;
  background-color: var(--md-default-bg-color);
  border: 0;
  border-radius: 1.6rem;
  box-shadow: var(--md-shadow-z2);
  color: var(--md-default-fg-color--light);
  cursor: pointer;
  display: inline-flex !important;
  font-size: 0.7rem;
  gap: 0.48rem;
  outline: none;
  padding: 0.4rem 0.8rem;
  position: fixed;
  right: max(1rem, env(safe-area-inset-right));
  bottom: max(1rem, env(safe-area-inset-bottom));
  transform: translateY(0);
  transition:
    color 125ms,
    background-color 125ms,
    transform 125ms cubic-bezier(0.4, 0, 0.2, 1),
    opacity 125ms;
  z-index: 4;
}

.peicd-scroll-bottom[hidden] {
  display: inline-flex !important;
}

.peicd-scroll-bottom.is-hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateY(0.2rem);
}

.peicd-scroll-bottom:not(.is-hidden) {
  opacity: 1;
  pointer-events: auto;
}

.peicd-scroll-bottom:hover,
.peicd-scroll-bottom:focus-visible {
  background-color: var(--md-accent-fg-color);
  color: var(--md-accent-bg-color);
}

.peicd-scroll-bottom svg {
  display: inline-block;
  flex: 0 0 auto;
  vertical-align: -0.5em;
}

.peicd-scroll-bottom__label {
  white-space: nowrap;
}

@media print {
  .peicd-scroll-bottom {
    display: none !important;
  }
}

@media (max-width: 59.999em) {
  .peicd-scroll-bottom {
    padding: 0.45rem 0.68rem;
    right: max(0.78rem, env(safe-area-inset-right));
    bottom: max(0.78rem, env(safe-area-inset-bottom));
  }

  .peicd-scroll-bottom__label {
    display: none;
  }
}

/* ==========================================================================
   1) Blockquote（引用 >）
   - 分為深色主題（dracula）與一般情況（預設/亮色）
   - 你這裡用 4 邊框線把引用框起來（而不是常見的左側粗線）
   ========================================================================== */

/* 深色主題：dracula 時的 blockquote */
[data-md-color-scheme=dracula] blockquote {
  border-left: 0.1px solid var(--md-primary-fg-color) !important;
  /* 左框線：主色 */
  border-right: 0.1px solid var(--md-primary-fg-color) !important;
  /* 右框線：主色 */
  border-top: 0.1px solid var(--md-primary-fg-color) !important;
  /* 上框線：主色 */
  border-bottom: 0.1px solid var(--md-primary-fg-color) !important;
  /* 下框線：主色 */
  padding-right: 15px;
  /* 右側內距：讓文字不要貼框 */
  color: #ffffff !important;
  /* 文字顏色：白 */
  border-radius: var(--peicd-radius-sm);
  /* 小圓角 */
}

/* 一般情況（非 dracula） */
blockquote {
  border-left: 0.1px solid var(--md-primary-fg-color) !important;
  border-right: 0.1px solid var(--md-primary-fg-color) !important;
  border-top: 0.1px solid var(--md-primary-fg-color) !important;
  border-bottom: 0.1px solid var(--md-primary-fg-color) !important;
  padding-right: 15px;
  color: #000000 !important;
  /* 文字顏色：黑（適用亮色背景） */
  border-radius: var(--peicd-radius-sm);
  /* 小圓角 */
}

/* ==========================================================================
   2) 標題樣式（原本有一段加左側色條的 h2~h5，被你註解掉）
   - 保留原註解區塊，方便你日後切回去
   ========================================================================== */

/*
[data-md-color-scheme=dracula] h2,
[data-md-color-scheme=dracula] h3,
[data-md-color-scheme=dracula] h4,
[data-md-color-scheme=dracula] h5{
    border-left: 4px solid var(--md-primary-fg-color) !important;
    color: #ffffff !important;
    padding-left: 15px;
}

h2,
h3,
h4,
h5{
    border-left: 4px solid var(--md-primary-fg-color) !important;
    color: #000000 !important;
    padding-left: 15px;
}
*/

/* ==========================================================================
   3) details/summary（折疊）
   - 目標：隱藏原生三角形圖示，改成你自己的視覺呈現
   ========================================================================== */

/* 隱藏折疊標題預設圖示（各瀏覽器相容寫法） */
details summary::marker,
/* 新版瀏覽器的 marker */
details summary::-webkit-details-marker,
/* WebKit（Chrome/Safari） */
details summary::before

/* 若主題用 pseudo-element 加圖示，也一起關掉 */
  {
  display: none;
}

/* 折疊標題外觀 */
details summary {
  border-radius: 5px !important;
  /* 圓角 */
  padding: 2px !important;
  /* 內距（同時你下方又設 padding-left，這裡保留原設計） */
  font-size: 16px;
  /* 標題字體大小 */
  padding-left: 8px !important;
  /* 左內距：文字不貼邊 */
  font-weight: normal !important;
  /* 取消粗體 */
}

/* 展開後內容的字級（你希望展開後也維持同大小） */
details[open] {
  font-size: 16px;
}

/* ==========================================================================
   4) 自訂內容框 .i（你用 /// html | div.i 包住的區塊）
   - 目標：做成帶邊框、漸層底、內陰影 glow 的卡片感
   ========================================================================== */

/*
內文使用方式（MkDocs Material 支援的語法示意）
/// html | div.i
some *markdown* content
///
*/

.i {
  border: 1px solid rgba(122, 211, 255, 0.35) !important;
  /* 外框：金色系半透明 */
  background: linear-gradient(90deg, rgba(122, 211, 255, 0.12), rgba(122, 211, 255, 0));
  /* 左到右漸層底 */
  box-shadow: var(--peicd-glow);
  /* 內陰影 glow（在 :root 定義） */
  border-radius: var(--peicd-radius-sm);
  /* 小圓角 */
  padding: 10px 15px;
  /* 內距 */
  color: inherit;
  /* 文字顏色沿用當前主題 */
}

/* ==========================================================================
   5) Footer（底部 from mkdocs）隱藏
   ========================================================================== */

.md-footer-meta.md-typeset {
  display: none;
  /* 隱藏最底部 footer meta（MkDocs Material 的版權/生成資訊區） */
}

/* ==========================================================================
   6) 密碼輸入 UI（自訂 class）
   - .custom-password-input：輸入框
   - .custom-password-button 與 input+button：按鈕
   ========================================================================== */

/* 密碼輸入框 */
.custom-password-input {
  border: 1px solid var(--md-primary-fg-color);
  /* 外框：主色 */
  background-color: rgba(255, 255, 255, 0.05);
  /* 底色：微透明 */
  color: inherit;
  /* 文字色：跟主題走 */
  padding: 12px 16px;
  /* 內距 */
  font-size: 16px;
  /* 字體大小 */
  width: 100%;
  /* 滿寬 */
  box-sizing: border-box;
  /* 讓 padding 不會把寬度撐爆 */
  border-radius: 8px;
  /* 圓角 */
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  /* 平滑動畫 */
  outline: none;
  /* 去掉瀏覽器預設外框 */
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
  /* 內陰影：更立體 */
}

/* 輸入框聚焦狀態 */
.custom-password-input:focus {
  border-color: var(--md-accent-fg-color);
  /* 外框變成 accent */
  background-color: rgba(255, 255, 255, 0.1);
  /* 底色稍亮 */
  box-shadow: 0 0 0 4px rgba(122, 211, 255, 0.2);
  /* 外光暈（與金色系一致） */
}

/* 解鎖按鈕（兩種 selector 都保留，避免你 HTML 結構不一致） */
.custom-password-button,
.custom-password-input+button {
  margin-top: 12px;
  /* 與輸入框間距 */
  width: auto;
  /* 不強制滿寬 */
  padding: 6px 20px;
  /* 內距 */
  background: var(--md-primary-fg-color);
  /* 背景：主色 */
  color: var(--md-default-bg-color);
  /* 文字色：用背景色做反差 */
  border: none;
  /* 去邊框 */
  border-radius: 50px;
  /* 膠囊按鈕 */
  font-size: 14px;
  /* 字級 */
  font-weight: 600;
  /* 稍粗 */
  cursor: pointer;
  /* 指標手勢 */
  transition: all 0.2s ease;
  /* 動畫 */
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  /* 陰影 */
  text-transform: uppercase;
  /* 大寫（若內容是英文） */
  letter-spacing: 0.05em;
  /* 字距 */
}

/* hover：更亮、更浮起 */
.custom-password-button:hover,
.custom-password-input+button:hover {
  background: var(--md-accent-fg-color);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

/* active：按下回彈 */
.custom-password-button:active,
.custom-password-input+button:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* ==========================================================================
   7) Material 狀態列（右下角小狀態）隱藏
   ========================================================================== */

.md-status {
  display: none;
}

/* ==========================================================================
   8) 字體設定（含註解掉的中文字體方案）
   ========================================================================== */

/*
@font-face {
    font-family: "CustomChinese";
    src: local("標楷體"), local("DFKai-SB");
    unicode-range: U+4E00-9FFF, U+3000-303F, U+FF00-FFEF;
}
body {
    font-family: "Cascadia Mono", "CustomChinese", sans-serif;
}
*/

/* 全局英文字體：Cascadia Mono（基礎版 body） */
body {
  font-family: "Cascadia Mono", monospace;
}

/* ==========================================================================
   9) 標題錨點（headerlink）圖示樣式
   - 隱藏 h1 的錨點
   - h2~h6 在左側預留錨點位置，避免長標題把錨點擠到獨立一行
   ========================================================================== */

/* 隱藏 h1 的錨點圖示 */
.md-typeset h1 .headerlink {
  display: none;
}

/* h2~h6：標題用一般 block 換行，左側預留錨點位置 */
.md-typeset h2,
.md-typeset h3,
.md-typeset h4,
.md-typeset h5,
.md-typeset h6 {
  display: block;
  padding-left: 1.25em;
  position: relative;
}

/* 錨點圖示：改成你自訂的 mask SVG（並用背景色著色） */
.md-typeset .headerlink {
  display: inline-block;
  padding-left: 0 !important;
  /* 清掉主題預設 padding */
  margin-left: 0 !important;
  /* 清掉主題預設 margin */
  width: 1em;
  /* 圖示寬：跟字體等寬 */
  height: 1em;
  /* 圖示高：跟字體等高 */
  background-color: var(--md-primary-fg-color);
  /* 圖示顏色：主色 */
  background-size: 1em;
  /* 背景尺寸 */
  -webkit-mask-size: 1em;
  /* mask 尺寸（WebKit） */
  mask-size: 1em;
  /* mask 尺寸 */
  -webkit-mask-repeat: no-repeat;
  /* 不重複 */
  mask-repeat: no-repeat;
  /* 不重複 */

  /* 使用 data URI 內嵌 SVG，透過 mask 來「剪出」圖形 */
  -webkit-mask-image: url('data:image/svg+xml;charset=utf-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><g transform="skewX(-10)"><path d="M4 6h16v2H4zM4 16h16v2H4zM7 4h2v16H7zM15 4h2v16h-2z" stroke="black" stroke-width="0.5"/></g></svg>');
  mask-image: url('data:image/svg+xml;charset=utf-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><g transform="skewX(-10)"><path d="M4 6h16v2H4zM4 16h16v2H4zM7 4h2v16H7zM15 4h2v16h-2z" stroke="black" stroke-width="0.5"/></g></svg>');

  visibility: visible;
  /* 確保可見 */
  opacity: 1 !important;
  /* 不透明 */
  transition: none !important;
  /* 不要主題預設的淡入淡出 */
}

/* h2~h6 的錨點固定在標題第一行左側，不參與換行 */
.md-typeset h2 .headerlink,
.md-typeset h3 .headerlink,
.md-typeset h4 .headerlink,
.md-typeset h5 .headerlink,
.md-typeset h6 .headerlink {
  left: 0;
  position: absolute;
  top: 0;
}

/* hover：換成 accent 色 */
.md-typeset .headerlink:hover {
  background-color: var(--md-accent-fg-color);
}

/* 被點擊定位（:target）後：回到主色 */
.md-typeset [id]:target .headerlink {
  background-color: var(--md-primary-fg-color);
}

/* 不同標題層級的圖示垂直微調（讓 icon 視覺上對齊文字基線） */
.md-typeset h2 .headerlink {
  transform: translateY(0.3em);
}

.md-typeset h3 .headerlink {
  transform: translateY(0.3em);
}

.md-typeset h4 .headerlink {
  transform: translateY(0.31em);
}

.md-typeset h5 .headerlink {
  transform: translateY(0.35em);
}

.md-typeset h6 .headerlink {
  transform: translateY(0.35em);
}

/* ==========================================================================
   10) Premium polish：全站變數與質感設定（第一段 :root）
   - :root：定義字體、圓角、陰影、邊框與 glow
   - slate：深色配色（你主要在用的 dark theme）
   ========================================================================== */

:root {
  /* Material 字體變數：讓主題內部也使用同一套字體 */
  --md-text-font: "Cascadia Mono";
  --md-code-font: "Cascadia Mono";

  /* 你自訂的「標題字體」變數（統一管理） */
  --peicd-heading-font: "Cascadia Mono";

  /* 圓角系統：large / medium / small */
  --peicd-radius-lg: 14px;
  --peicd-radius-md: 10px;
  --peicd-radius-sm: 8px;

  /* 深色模式常用邊框色 */
  --peicd-border: rgba(255, 255, 255, 0.08);
  --peicd-border-strong: rgba(255, 255, 255, 0.14);

  /* 陰影層級（卡片/導航） */
  --peicd-shadow-1: 0 10px 26px rgba(0, 0, 0, 0.3);
  --peicd-shadow-2: 0 18px 40px rgba(0, 0, 0, 0.35);

  /* 內光暈：用 inset 做細緻的邊緣發光 */
  --peicd-glow: 0 0 0 1px rgba(122, 211, 255, 0.25) inset;

  /* Markdown --- 分隔線：亮色用較深 cyan，保留中心粗、左右細 */
  --peicd-hr-line: rgba(0, 121, 153, 0.68);
  --peicd-hr-subline: rgba(0, 30, 44, 0.12);
}

/* 深色方案：接近 ChatGPT 黑底，保留少量層級色避免內容糊在一起 */
[data-md-color-scheme="slate"],
[data-md-color-scheme="dracula"] {
  /* 全站底色 / 文字色 */
  --md-default-bg-color: #000000;
  --md-default-bg-color--light: rgba(14, 14, 14, 0.78);
  --md-default-bg-color--lighter: rgba(24, 24, 24, 0.36);
  --md-default-bg-color--lightest: rgba(38, 38, 38, 0.18);
  --md-default-bg-color--trans: rgba(0, 0, 0, 0);
  --md-default-bg-color--dark: #050505;
  --md-default-bg-color--darker: #020202;
  --md-default-bg-color--darkest: #000000;
  --md-default-bg-color--ultra-dark: #000000;
  --md-header-bg-color: #000000;
  --md-footer-bg-color: #000000;
  --md-footer-bg-color--dark: #000000;
  --md-default-fg-color: #f5f5f5;
  --md-default-fg-color--light: #d8dde3;
  --md-default-fg-color--lighter: #aeb7c2;
  --md-default-fg-color--lightest: #747f8d;

  /* code 色彩 */
  --md-code-bg-color: #0b0d10;
  --md-code-inline-bg-color: #11161c;
  --md-code-title-bg-color: #050505;
  --md-code-special-bg-color: #111111;
  --md-code-alternate-bg-color: #151515;
  --md-code-link-bg-color: #10222b;
  --md-code-fg-color: #e8e2d6;

  /* 主色與 accent */
  --md-primary-fg-color: #7ad3ff;
  --md-accent-fg-color: #7ad3ff;

  /* 連結色 */
  --md-typeset-a-color: #7ad3ff;
  --md-typeset-mark-color: rgba(255, 213, 84, 0.22);
  --peicd-mark-bg: rgba(255, 211, 77, 0.16);
  --peicd-mark-fg: #fff7d9;
  --peicd-mark-border: rgba(255, 221, 120, 0.30);
  --peicd-mark-stroke: rgba(255, 210, 76, 0.30);

  /* 你自訂的 surface / 卡片底色 */
  --peicd-surface-1: #050505;
  --peicd-surface-2: #0b0d10;
  --peicd-surface-3: #11161c;
  --peicd-card: #07090c;
  --peicd-hr-line: rgba(114, 227, 253, 0.58);
  --peicd-hr-subline: rgba(255, 255, 255, 0.08);
  --peicd-collapse-fade-start: rgba(40, 42, 54, 0);
  --peicd-collapse-fade-end: rgba(40, 42, 54, 0.94);
}

/* 深色模式的 ==mark==：用乾淨的連續螢光筆層取代厚重亮塊 */
[data-md-color-scheme="slate"] .md-typeset mark,
[data-md-color-scheme="dracula"] .md-typeset mark {
  -webkit-box-decoration-break: clone;
  background: var(--peicd-mark-bg) !important;
  border-radius: 0.14em;
  box-decoration-break: clone;
  box-shadow:
    0 0 0 1px var(--peicd-mark-border) inset,
    inset 0 -0.46em 0 var(--peicd-mark-stroke);
  color: var(--peicd-mark-fg) !important;
  padding: 0.01em 0.14em 0.03em;
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.42);
}

[data-md-color-scheme="slate"] .md-typeset mark code,
[data-md-color-scheme="dracula"] .md-typeset mark code {
  background-color: transparent !important;
  border-color: transparent !important;
  color: inherit !important;
  padding-inline: 0.08em;
}

/* body：採用變數字體 + 微字距 + 字體渲染優化（第二段 body；會覆蓋前面的 body 字體設定） */
body {
  font-family: var(--md-text-font), "Cascadia Mono", monospace;
  letter-spacing: 0.01em;
  text-rendering: optimizeLegibility;
}

[data-md-color-scheme="slate"],
[data-md-color-scheme="dracula"] {
  background-color: #000000;
  color-scheme: dark;
}

[data-md-color-scheme="slate"] :is(.md-container, .md-main, .md-content, .md-content__inner),
[data-md-color-scheme="dracula"] :is(.md-container, .md-main, .md-content, .md-content__inner) {
  background: #000000 !important;
}

/* ==========================================================================
   11) Header / Tabs：半透明 + 模糊玻璃 + 下邊框
   ========================================================================== */

.md-header,
.md-tabs {
  background: rgba(0, 0, 0, 0.96);
  /*半透明深色底*/
  border-bottom: 1px solid var(--md-primary-fg-color);
  /* 細邊框 */
  box-shadow: var(--peicd-shadow-1);
  /* 陰影 */
  /* backdrop-filter: blur(10px); */
  /* 背景模糊（玻璃感） */
}

[data-md-color-scheme="slate"] :is(.md-header, .md-tabs),
[data-md-color-scheme="dracula"] :is(.md-header, .md-tabs) {
  background: rgba(0, 0, 0, 0.98) !important;
  background-color: rgba(0, 0, 0, 0.98) !important;
}

/* ==========================================================================
   12) Sidebar nav 文字 hover / active 顏色（基本版）
   ========================================================================== */

.md-nav__link {
  transition: color 160ms ease;
  /* hover 時顏色平滑 */
}

.md-nav__link:hover,
.md-nav__item--active>.md-nav__link {
  color: var(--md-accent-fg-color);
  /* hover / active 變成 accent */
}

/* ==========================================================================
   13) 標題字體（h1~h6）
   ========================================================================== */

.md-typeset h1,
.md-typeset h2,
.md-typeset h3,
.md-typeset h4,
.md-typeset h5,
.md-typeset h6 {
  font-family: var(--peicd-heading-font), "Cascadia Mono", monospace;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.md-typeset h1 {
  font-size: 2rem;
}

.md-typeset h2 {
  font-size: 1.7rem;
}

.md-typeset h3 {
  font-size: 1.4rem;
}

.md-typeset h4 {
  font-size: 1.2rem;
}

.md-typeset h5 {
  font-size: 1.05rem;
}

.md-typeset h6 {
  font-size: 1rem;
}

/* ==========================================================================
   14) 資料夾階層路徑列（檔案總管風格）
   ========================================================================== */

.peicd-folder-pathbar {
  align-items: center;
  color: var(--md-default-fg-color--light);
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0 0 0.9rem;
  overflow: visible;
  position: relative;
  z-index: 8;
}

.peicd-folder-pathbar__prefix,
.peicd-folder-pathbar__separator {
  color: var(--md-default-fg-color--lighter);
  font-size: 0.92rem;
  line-height: 1;
}

.peicd-folder-pathbar__item {
  position: relative;
}

.peicd-folder-pathbar__mobile-group {
  display: none;
}

.peicd-folder-pathbar__mobile-select {
  display: none;
}

.peicd-folder-pathbar__toggle {
  align-items: center;
  appearance: none;
  background: none;
  background-image: none;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  color: inherit;
  cursor: pointer;
  display: inline-flex;
  font: inherit;
  gap: 0.42rem;
  line-height: 1;
  padding: 0.38rem 0.52rem;
  transition: background 160ms ease, border-color 160ms ease, box-shadow 160ms ease, color 160ms ease;
}

.peicd-folder-pathbar__toggle:hover,
.peicd-folder-pathbar__toggle:focus-visible,
.peicd-folder-pathbar__item.is-open .peicd-folder-pathbar__toggle {
  color: var(--md-primary-fg-color);
  outline: none;
}

.peicd-folder-pathbar__toggle:hover,
.peicd-folder-pathbar__toggle:focus-visible,
.peicd-folder-pathbar__item.is-open .peicd-folder-pathbar__toggle {
  box-shadow: 0 0 0.9rem rgba(122, 211, 255, 0.14);
  background-image:
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0) !important;
  background-repeat: no-repeat !important;
  background-position:
    left top, left top,
    right top, right top,
    left bottom, left bottom,
    right bottom, right bottom !important;
  background-size:
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner) !important;
}

.peicd-folder-pathbar__item--current .peicd-folder-pathbar__toggle {
  color: var(--md-default-fg-color--lighter) !important;
}

.peicd-folder-pathbar__label {
  font-size: 0.92rem;
  font-weight: 700;
}

.peicd-folder-pathbar__caret {
  color: var(--md-default-fg-color--lighter);
  font-size: 0.8rem;
  transform: translateY(-0.02rem);
}

.peicd-folder-pathbar__menu {
  background: rgba(17, 24, 36, 0.96);
  border: 1px solid rgba(122, 211, 255, 0.18);
  border-radius: 0.9rem;
  box-shadow: 0 1rem 2.4rem rgba(0, 0, 0, 0.32);
  display: none;
  left: 0;
  margin-top: 0.45rem;
  max-height: min(18rem, 55vh);
  min-width: 12rem;
  overflow: auto;
  padding: 0.32rem;
  position: absolute;
  top: 100%;
  z-index: 30;
}

.peicd-folder-pathbar__item.is-open .peicd-folder-pathbar__menu {
  display: block;
}

.peicd-folder-pathbar__option {
  background: none !important;
  background-image: none !important;
  border-radius: 0;
  box-shadow: none !important;
  color: var(--md-default-fg-color--light) !important;
  display: block;
  font-size: 0.92rem;
  padding: 0.58rem 0.72rem;
  text-decoration: none !important;
  transition: background 160ms ease, color 160ms ease;
}

.peicd-folder-pathbar__option:hover,
.peicd-folder-pathbar__option:focus-visible {
  color: var(--md-primary-fg-color) !important;
  outline: none;
  box-shadow: 0 0 0.7rem var(--peicd-nav-hover-glow) !important;
  background-image:
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0) !important;
  background-repeat: no-repeat !important;
  background-position:
    left top, left top,
    right top, right top,
    left bottom, left bottom,
    right bottom, right bottom !important;
  background-size:
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner) !important;
}

.peicd-folder-pathbar__option--current {
  color: var(--md-primary-fg-color) !important;
  font-weight: 700;
  box-shadow: 0 0 1.1rem var(--peicd-nav-active-glow) !important;
  background-image:
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0) !important;
  background-repeat: no-repeat !important;
  background-position:
    left top, left top,
    right top, right top,
    left bottom, left bottom,
    right bottom, right bottom !important;
  background-size:
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner) !important;
}

[data-md-color-scheme="default"] .peicd-folder-pathbar__toggle,
[data-md-color-scheme="light"] .peicd-folder-pathbar__toggle {
  background: none;
  border-color: transparent;
}

[data-md-color-scheme="default"] .peicd-folder-pathbar__toggle:hover,
[data-md-color-scheme="default"] .peicd-folder-pathbar__toggle:focus-visible,
[data-md-color-scheme="default"] .peicd-folder-pathbar__item.is-open .peicd-folder-pathbar__toggle,
[data-md-color-scheme="light"] .peicd-folder-pathbar__toggle:hover,
[data-md-color-scheme="light"] .peicd-folder-pathbar__toggle:focus-visible,
[data-md-color-scheme="light"] .peicd-folder-pathbar__item.is-open .peicd-folder-pathbar__toggle {
  color: var(--md-primary-fg-color);
}

[data-md-color-scheme="default"] .peicd-folder-pathbar__item--current .peicd-folder-pathbar__toggle,
[data-md-color-scheme="light"] .peicd-folder-pathbar__item--current .peicd-folder-pathbar__toggle {
  color: var(--md-default-fg-color--lighter) !important;
}

[data-md-color-scheme="default"] .peicd-folder-pathbar__menu,
[data-md-color-scheme="light"] .peicd-folder-pathbar__menu {
  background: rgba(255, 255, 255, 0.98);
  border-color: rgba(19, 73, 97, 0.14);
  box-shadow: 0 1rem 2rem rgba(19, 73, 97, 0.12);
}

[data-md-color-scheme="default"] .peicd-folder-pathbar__option,
[data-md-color-scheme="light"] .peicd-folder-pathbar__option {
  color: var(--md-default-fg-color--light) !important;
}

[data-md-color-scheme="default"] .peicd-folder-pathbar__option:hover,
[data-md-color-scheme="default"] .peicd-folder-pathbar__option:focus-visible,
[data-md-color-scheme="light"] .peicd-folder-pathbar__option:hover,
[data-md-color-scheme="light"] .peicd-folder-pathbar__option:focus-visible {
  color: var(--md-primary-fg-color) !important;
}

[data-md-color-scheme="default"] .peicd-folder-pathbar__option--current,
[data-md-color-scheme="light"] .peicd-folder-pathbar__option--current {
  color: var(--md-primary-fg-color) !important;
}

[data-md-color-scheme="slate"] .peicd-folder-pathbar,
[data-md-color-scheme="dracula"] .peicd-folder-pathbar {
  color: rgba(235, 242, 247, 0.9);
}

[data-md-color-scheme="slate"] .peicd-folder-pathbar__prefix,
[data-md-color-scheme="slate"] .peicd-folder-pathbar__separator,
[data-md-color-scheme="dracula"] .peicd-folder-pathbar__prefix,
[data-md-color-scheme="dracula"] .peicd-folder-pathbar__separator {
  color: rgba(235, 242, 247, 0.54);
}

[data-md-color-scheme="slate"] .peicd-folder-pathbar__item--current .peicd-folder-pathbar__toggle,
[data-md-color-scheme="slate"] .peicd-folder-pathbar__item--current .peicd-folder-pathbar__mobile-select,
[data-md-color-scheme="dracula"] .peicd-folder-pathbar__item--current .peicd-folder-pathbar__toggle,
[data-md-color-scheme="dracula"] .peicd-folder-pathbar__item--current .peicd-folder-pathbar__mobile-select {
  color: #e2fbff !important;
}

[data-md-color-scheme="slate"] .peicd-folder-pathbar__caret,
[data-md-color-scheme="dracula"] .peicd-folder-pathbar__caret {
  color: rgba(114, 227, 253, 0.78);
}

[data-md-color-scheme="slate"] .peicd-folder-pathbar__toggle:hover,
[data-md-color-scheme="slate"] .peicd-folder-pathbar__toggle:focus-visible,
[data-md-color-scheme="slate"] .peicd-folder-pathbar__item.is-open .peicd-folder-pathbar__toggle,
[data-md-color-scheme="dracula"] .peicd-folder-pathbar__toggle:hover,
[data-md-color-scheme="dracula"] .peicd-folder-pathbar__toggle:focus-visible,
[data-md-color-scheme="dracula"] .peicd-folder-pathbar__item.is-open .peicd-folder-pathbar__toggle {
  background: rgba(114, 227, 253, 0.08) !important;
  background-image: none !important;
  border-radius: 6px;
  box-shadow: inset 0 0 0 1px rgba(114, 227, 253, 0.28), 0 0 0.75rem rgba(0, 0, 0, 0.24) !important;
  color: #e2fbff !important;
}

[data-md-color-scheme="slate"] .peicd-folder-pathbar__menu,
[data-md-color-scheme="dracula"] .peicd-folder-pathbar__menu {
  background: #050607;
  border-color: rgba(114, 227, 253, 0.26);
  border-radius: 8px;
  box-shadow: 0 1rem 2.2rem rgba(0, 0, 0, 0.46);
  padding: 0.28rem;
}

[data-md-color-scheme="slate"] .peicd-folder-pathbar__option,
[data-md-color-scheme="dracula"] .peicd-folder-pathbar__option {
  border-radius: 5px;
  color: rgba(224, 234, 241, 0.72) !important;
  padding: 0.5rem 0.62rem;
}

[data-md-color-scheme="slate"] .peicd-folder-pathbar__option:hover,
[data-md-color-scheme="slate"] .peicd-folder-pathbar__option:focus-visible,
[data-md-color-scheme="dracula"] .peicd-folder-pathbar__option:hover,
[data-md-color-scheme="dracula"] .peicd-folder-pathbar__option:focus-visible {
  background: rgba(114, 227, 253, 0.08) !important;
  background-image: none !important;
  box-shadow: none !important;
  color: #e2fbff !important;
}

[data-md-color-scheme="slate"] .peicd-folder-pathbar__option--current,
[data-md-color-scheme="dracula"] .peicd-folder-pathbar__option--current {
  background: rgba(114, 227, 253, 0.12) !important;
  background-image: none !important;
  box-shadow: inset 0 0 0 1px rgba(114, 227, 253, 0.28) !important;
  color: #e2fbff !important;
}

.peicd-folder-pathbar--hidden {
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
}

[data-md-toggle="search"]:checked ~ .md-container .peicd-folder-pathbar {
  display: none !important;
}

@media (max-width: 59.999em) {
  .peicd-folder-pathbar {
    display: flex;
    flex-wrap: nowrap;
    gap: 0.22rem;
    margin-bottom: 0.65rem;
    overflow-x: auto;
    padding-bottom: 0.08rem;
    scrollbar-width: none;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
  }

  .peicd-folder-pathbar--hidden {
    display: none;
  }

  .peicd-folder-pathbar::-webkit-scrollbar {
    display: none;
  }

  .peicd-folder-pathbar__item {
    min-width: 0;
  }

  .peicd-folder-pathbar__toggle,
  .peicd-folder-pathbar__menu {
    display: none !important;
  }

  .peicd-folder-pathbar__mobile-group {
    display: block;
    min-width: 0;
  }

  .peicd-folder-pathbar__mobile-select {
    appearance: auto;
    background: transparent;
    border: 0;
    color: var(--md-default-fg-color--lighter);
    display: block;
    font: inherit;
    font-size: 0.95rem;
    font-weight: 700;
    line-height: 1.15;
    margin: 0;
    max-width: min(42vw, 11rem);
    min-width: 0;
    padding: 0.1rem 0.08rem;
  }

  .peicd-folder-pathbar__item--current .peicd-folder-pathbar__mobile-select {
    color: var(--md-default-fg-color--lighter);
  }

  [data-md-color-scheme="default"] .peicd-folder-pathbar__mobile-select,
  [data-md-color-scheme="light"] .peicd-folder-pathbar__mobile-select {
    color: rgba(0, 0, 0, 0.7);
  }
}

/* ==========================================================================
   15) 連結底線：用 background-image 做「可動畫的底線」
   ========================================================================== */

.md-typeset a {
  text-decoration: none;
  /* 取消預設底線 */
  background-image: linear-gradient(currentColor, currentColor);
  /* 底線用文字顏色 */
  background-size: 100% 1px;
  /* 底線厚度 1px */
  background-position: 0 100%;
  /* 貼底 */
  background-repeat: no-repeat;
  transition: color 180ms ease, background-size 180ms ease;
  /* hover 更厚 */
}

.md-typeset a:hover {
  color: var(--md-accent-fg-color);
  background-size: 100% 2px;
  /* hover 底線變厚 */
}

/* ==========================================================================
   15) blockquote（Material typeset 內的 blockquote 額外質感）
   - 這會覆蓋前面更一般的 blockquote 設定（更偏你的深色設計）
   ========================================================================== */

.md-typeset blockquote {
  background: linear-gradient(90deg, rgba(122, 211, 255, 0.12), rgba(122, 211, 255, 0));
  border-color: rgba(122, 211, 255, 0.35) !important;
  box-shadow: var(--peicd-glow);
}

/* ==========================================================================
   16) pre（程式碼區塊底）
   - 注意：後面「Selection System v12 Clean」會把 pre 的 box-shadow 強制清掉
   ========================================================================== */

.md-typeset pre {
  background-color: var(--md-code-bg-color);
  border: 1px solid var(--peicd-border);
  border-radius: var(--peicd-radius-md);
  box-shadow: var(--peicd-shadow-1);
}

/* ==========================================================================
   17) Code copy button（複製按鈕）外觀
   - 深色：slate / dracula
   - 亮色：default / light
   ========================================================================== */

/* 深色：複製按鈕 */
[data-md-color-scheme="slate"] .md-clipboard,
[data-md-color-scheme="dracula"] .md-clipboard {
  background: rgba(255, 255, 255, 0.06) !important;
  color: var(--peicd-nav-text) !important;
  border: 1px solid rgba(255, 255, 255, 0.12) !important;
  box-shadow: none !important;
}

[data-md-color-scheme="slate"] .md-clipboard:hover,
[data-md-color-scheme="dracula"] .md-clipboard:hover {
  background: rgba(255, 255, 255, 0.12) !important;
  border-color: rgba(255, 255, 255, 0.22) !important;
}

/* 亮色：複製按鈕 */
[data-md-color-scheme="default"] .md-clipboard,
[data-md-color-scheme="light"] .md-clipboard {
  background: rgba(0, 0, 0, 0.05) !important;
  color: rgba(0, 0, 0, 0.7) !important;
  border: 1px solid rgba(0, 0, 0, 0.12) !important;
}

/* 更硬的覆蓋：避免主題把背景塞回來 */
[data-md-color-scheme="slate"] .md-clipboard,
[data-md-color-scheme="dracula"] .md-clipboard,
[data-md-color-scheme="slate"] .highlight .md-clipboard,
[data-md-color-scheme="dracula"] .highlight .md-clipboard {
  background-color: rgba(255, 255, 255, 0.06) !important;
  box-shadow: none !important;
}

/* 複製按鈕 pseudo-element 的背景清掉（避免多一層怪陰影） */
[data-md-color-scheme="slate"] .md-clipboard::before,
[data-md-color-scheme="dracula"] .md-clipboard::before,
[data-md-color-scheme="slate"] .md-clipboard::after,
[data-md-color-scheme="dracula"] .md-clipboard::after {
  background: transparent !important;
  box-shadow: none !important;
}

/* code copy 容器 .md-code__nav（深色） */
[data-md-color-scheme="slate"] .md-code__nav,
[data-md-color-scheme="dracula"] .md-code__nav {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02)) !important;
  border: 1px solid rgba(255, 255, 255, 0.12) !important;
  border-radius: 8px !important;
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.2) !important;
}

/* code copy 容器 pseudo-element 清掉 */
[data-md-color-scheme="slate"] .md-code__nav::before,
[data-md-color-scheme="dracula"] .md-code__nav::before,
[data-md-color-scheme="slate"] .md-code__nav::after,
[data-md-color-scheme="dracula"] .md-code__nav::after {
  content: none !important;
  background: transparent !important;
  box-shadow: none !important;
}

/* code copy 容器（亮色） */
[data-md-color-scheme="default"] .md-code__nav,
[data-md-color-scheme="light"] .md-code__nav {
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.04), rgba(0, 0, 0, 0.02)) !important;
  border: 1px solid rgba(0, 0, 0, 0.12) !important;
  border-radius: 8px !important;
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.08) !important;
}

/* 複製按鈕細節：圓角 + hover 浮起 */
.md-clipboard {
  border-radius: 6px !important;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

/* 深色 hover */
[data-md-color-scheme="slate"] .md-clipboard,
[data-md-color-scheme="dracula"] .md-clipboard {
  background: rgba(255, 255, 255, 0.08) !important;
  border: 1px solid rgba(255, 255, 255, 0.14) !important;
}

[data-md-color-scheme="slate"] .md-clipboard:hover,
[data-md-color-scheme="dracula"] .md-clipboard:hover {
  background: rgba(255, 255, 255, 0.14) !important;
  border-color: rgba(255, 255, 255, 0.22) !important;
  transform: translateY(-1px);
}

/* 亮色 hover */
[data-md-color-scheme="default"] .md-clipboard,
[data-md-color-scheme="light"] .md-clipboard {
  background: rgba(0, 0, 0, 0.06) !important;
  border: 1px solid rgba(0, 0, 0, 0.14) !important;
}

[data-md-color-scheme="default"] .md-clipboard:hover,
[data-md-color-scheme="light"] .md-clipboard:hover {
  background: rgba(0, 0, 0, 0.1) !important;
  border-color: rgba(0, 0, 0, 0.2) !important;
  transform: translateY(-1px);
}

/* ==========================================================================
   18) code 字體與 inline code 樣式
   ========================================================================== */

.md-typeset code {
  font-family: var(--md-code-font), "Consolas", monospace;
}

/* inline code（非 pre 內的 code） */
.md-typeset :not(pre)>code {
  background-color: rgba(122, 211, 255, 0.12);
  /* 淡金底 */
  border: 1px solid rgba(122, 211, 255, 0.22);
  /* 淡金框 */
  border-radius: 6px;
  padding: 0.05em 0.35em;
}

/* 標題內 inline code 降低膨脹感，並避免桌面版被拆成多行 */
.md-typeset :is(h1, h2, h3, h4, h5, h6) code {
  align-self: center;
  font-size: 0.84em;
  line-height: 1.15;
  padding: 0.02em 0.24em;
  white-space: nowrap;
  overflow-wrap: normal;
  word-break: normal;
}

@media screen and (max-width: 45rem) {
  .md-typeset :is(h1, h2, h3, h4, h5, h6) code {
    white-space: normal;
    overflow-wrap: anywhere;
    word-break: break-word;
  }
}

/* ==========================================================================
   19) admonition / details 卡片化
   ========================================================================== */

.md-typeset .admonition,
.md-typeset details {
  background: var(--peicd-surface-2);
  border: 1px solid var(--peicd-border);
  border-radius: var(--peicd-radius-md);
  font-size: inherit;
  line-height: inherit;
  box-shadow: var(--peicd-shadow-1);
}

.md-typeset .admonition-title,
.md-typeset summary {
  font-size: 0.88em;
  line-height: 1.35;
}

[data-md-color-scheme="slate"] .md-typeset details:not([class]),
[data-md-color-scheme="dracula"] .md-typeset details:not([class]) {
  background: #050505;
  border: 1px solid rgba(122, 211, 255, 0.2);
  border-left: 2px solid rgba(122, 211, 255, 0.72);
  border-radius: 8px;
  box-shadow:
    0 10px 26px rgba(0, 0, 0, 0.32),
    0 0 0 1px rgba(122, 211, 255, 0.07) inset;
  color: var(--md-default-fg-color);
  margin: 1.05em 0;
  overflow: hidden;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

[data-md-color-scheme="slate"] .md-typeset details:not([class]):hover,
[data-md-color-scheme="slate"] .md-typeset details:not([class]):focus-within,
[data-md-color-scheme="dracula"] .md-typeset details:not([class]):hover,
[data-md-color-scheme="dracula"] .md-typeset details:not([class]):focus-within {
  border-color: rgba(122, 211, 255, 0.4);
  box-shadow:
    0 12px 30px rgba(0, 0, 0, 0.36),
    0 0 0 1px rgba(122, 211, 255, 0.16) inset;
}

[data-md-color-scheme="slate"] .md-typeset details:not([class]) > summary,
[data-md-color-scheme="dracula"] .md-typeset details:not([class]) > summary {
  align-items: center;
  background: #0b0d10;
  border-bottom: 1px solid transparent;
  border-radius: 0 !important;
  color: #e7fbff;
  cursor: pointer;
  display: flex;
  gap: 0.55rem;
  font-size: 0.92em;
  font-weight: 700 !important;
  line-height: 1.35;
  min-height: 2.35rem;
  outline: none;
  padding: 0.62rem 0.82rem 0.62rem 0.95rem !important;
  user-select: none;
}

[data-md-color-scheme="slate"] .md-typeset details:not([class])[open] > summary,
[data-md-color-scheme="dracula"] .md-typeset details:not([class])[open] > summary {
  border-bottom-color: rgba(122, 211, 255, 0.16);
}

[data-md-color-scheme="slate"] .md-typeset details:not([class]) > summary::before,
[data-md-color-scheme="dracula"] .md-typeset details:not([class]) > summary::before {
  background: transparent !important;
  border-right: 2px solid #72e3fd;
  border-bottom: 2px solid #72e3fd;
  box-sizing: border-box;
  content: "";
  display: block;
  flex: 0 0 0.52rem;
  height: 0.52rem;
  inset: auto !important;
  margin: 0 0.08rem 0 0.04rem;
  min-width: 0.52rem;
  position: static !important;
  transform: rotate(-45deg);
  transform-origin: center;
  transition: transform 160ms ease;
  width: 0.52rem;
  -webkit-mask: none !important;
  mask: none !important;
}

[data-md-color-scheme="slate"] .md-typeset details:not([class])[open] > summary::before,
[data-md-color-scheme="dracula"] .md-typeset details:not([class])[open] > summary::before {
  transform: rotate(45deg);
}

[data-md-color-scheme="slate"] .md-typeset details:not([class]) > summary::after,
[data-md-color-scheme="dracula"] .md-typeset details:not([class]) > summary::after {
  background: rgba(122, 211, 255, 0.22);
  content: "";
  display: block;
  flex: 1 1 auto;
  height: 1px;
  margin-left: 0.18rem;
  min-width: 1.2rem;
}

[data-md-color-scheme="slate"] .md-typeset details:not([class]) > :not(summary),
[data-md-color-scheme="dracula"] .md-typeset details:not([class]) > :not(summary) {
  margin-left: 1rem;
  margin-right: 1rem;
}

[data-md-color-scheme="slate"] .md-typeset details:not([class]) > summary + *,
[data-md-color-scheme="dracula"] .md-typeset details:not([class]) > summary + * {
  margin-top: 0.78rem;
}

[data-md-color-scheme="slate"] .md-typeset details:not([class]) > :last-child,
[data-md-color-scheme="dracula"] .md-typeset details:not([class]) > :last-child {
  margin-bottom: 0.85rem;
}

/* ==========================================================================
   20) 表格：外框、圓角、陰影、表頭底
   ========================================================================== */

.md-typeset table:not([class]) {
  border: 1px solid var(--peicd-border);
  border-radius: var(--peicd-radius-md);
  overflow: hidden;
  /* 讓圓角能裁切表格內部 */
  box-shadow: var(--peicd-shadow-1);
}

.md-typeset table:not([class]) th {
  background: var(--peicd-surface-3);
  /* 表頭底色 */
}

/* ==========================================================================
   21) hr：中間粗、左右細的 Markdown --- 分隔線
   ========================================================================== */

.md-typeset hr {
  background:
    linear-gradient(90deg, transparent 0%, var(--peicd-hr-subline) 18%, var(--peicd-hr-subline) 82%, transparent 100%) center / 88% 1px no-repeat,
    linear-gradient(90deg, transparent 0%, var(--peicd-hr-line) 30%, var(--peicd-hr-line) 70%, transparent 100%) center / 70% 2px no-repeat;
  border: 0;
  height: 5px;
  margin: 2.2rem 0;
  opacity: 1;
}

/* ==========================================================================
   22) 按鈕：膠囊 + 邊框 + glow
   ========================================================================== */

.md-button,
.md-typeset .md-button {
  border-radius: 999px;
  border: 1px solid rgba(122, 211, 255, 0.45);
  box-shadow: var(--peicd-glow);
}

/* ==========================================================================
   23) 部落格摘要卡（註解保留）
   ========================================================================== */

/* .md-post--excerpt {
    background: var(--peicd-card);
    border: 1px solid var(--peicd-border);
    box-shadow: var(--peicd-shadow-2);
} */

/* ==========================================================================
   24) 選取文字：金色底
   ========================================================================== */

.md-typeset ::selection {
  background: rgba(122, 211, 255, 0.35);
  color: #0f1116;
  /* 深色文字，避免金底上看不清 */
}

/* ==========================================================================
   25) 版面 spacing：主內容上方與底部留白
   ========================================================================== */

.md-main__inner {
  padding-top: 1.6rem;
}

.md-content__inner {
  padding-bottom: 2.8rem;
}

/* active nav 不額外加粗（你後面用自己的 active 樣式處理） */
.md-nav__item--active>.md-nav__link {
  font-weight: inherit;
}

/* nav item 行距微調 */
.md-nav__link {
  padding-top: 0.28rem;
  padding-bottom: 0.28rem;
}

/* 表格 hover：淡金底 */
.md-typeset table:not([class]) tbody tr:hover {
  background-color: rgba(122, 211, 255, 0.08);
}

/* ==========================================================================
   26) Sidebar / TOC：透明化與卡片化導航（基礎版）
   ========================================================================== */

.md-sidebar--primary,
.md-sidebar--secondary {
  background: transparent;
}

/* sidebar scrollwrap：去背景、去陰影 */
.md-sidebar--primary .md-sidebar__scrollwrap,
.md-sidebar--secondary .md-sidebar__scrollwrap {
  background: transparent;
  border: none;
  border-left-width: 0;
  border-right-width: 0;
  box-shadow: none;
}

/* sidebar title：小字、全大寫、灰色 */
.md-sidebar--primary .md-nav__title,
.md-sidebar--secondary .md-nav__title {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--md-default-fg-color--lightest);
  margin-bottom: 0.4rem;
  padding: 0.3rem 0.5rem;
}

/* sidebar link：圓角、padding、hover 動畫 */
.md-sidebar--primary a.md-nav__link,
.md-sidebar--primary label.md-nav__link,
.md-sidebar--secondary a.md-nav__link {
  border-radius: 6px;
  padding: 0.35rem 0.8rem;
  border: 1px solid transparent;
  transition: background 200ms ease, border-color 200ms ease, color 200ms ease;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 0.1rem 0;
}

/* hover：accent */
.md-sidebar--primary .md-nav__link:hover,
.md-sidebar--secondary .md-nav__link:hover {
  color: var(--md-accent-fg-color);
}

/* Flat futuristic active state：你後面又用 Selection System 重寫，這裡保留 */
.md-sidebar--primary .md-nav__item--active>.md-nav__link,
.md-sidebar--primary .md-nav__link--active,
.md-sidebar--secondary .md-nav__item--active>.md-nav__link,
.md-sidebar--secondary .md-nav__link--active {
  background: linear-gradient(180deg, rgba(122, 211, 255, 0.26), rgba(122, 211, 255, 0.10));
  border-color: rgba(122, 211, 255, 0.4);
  box-shadow: none;
  color: var(--md-accent-fg-color) !important;
  font-weight: 600;
  position: relative;
  overflow: hidden;
  border-radius: 0;
}

/* active 狀態 pseudo-element 清掉（避免主題預設效果） */
.md-sidebar--primary .md-nav__item--active>.md-nav__link::after,
.md-sidebar--primary .md-nav__link--active::after,
.md-sidebar--secondary .md-nav__item--active>.md-nav__link::after,
.md-sidebar--secondary .md-nav__link--active::after {
  content: none;
  display: none;
}

/* TOC（右側）加左邊細線 + 防止滾動穿透 */
.md-sidebar--secondary .md-sidebar__scrollwrap {
  background: transparent;
  border-left: 1px solid var(--peicd-border);
  overscroll-behavior: contain;
}

/* TOC 容器全透明 */
.md-sidebar--secondary .md-sidebar__inner,
.md-sidebar--secondary .md-nav,
.md-sidebar--secondary .md-nav__list,
.md-sidebar--secondary .md-nav__title,
.md-sidebar--secondary .md-nav__source {
  background: transparent;
  box-shadow: none;
}

/* sidebar title：底線、去背景 */
.md-sidebar--primary .md-nav__title,
.md-sidebar--secondary .md-nav__title {
  padding: 0.6rem 0;
  margin-bottom: 0.4rem;
  border-bottom: 1px solid var(--peicd-border);
  background: transparent !important;
  box-shadow: none !important;
  padding-left: 0.35rem;
}

/* sidebar 文字色 */
.md-sidebar--primary .md-nav__link,
.md-sidebar--secondary .md-nav__link {
  color: var(--md-default-fg-color);
  opacity: 0.9;
}

/* TOC link 左內距 */
.md-sidebar--secondary .md-nav__link {
  padding-left: 0.35rem;
}

/* 左側 nav link 的縮排（Material 的 indent 變數） */
.md-sidebar--primary .md-nav__link {
  padding-left: calc(0.35rem + var(--md-nav-indent, 0px));
}

/* hover：accent */
.md-sidebar--primary .md-nav__link:hover,
.md-sidebar--secondary .md-nav__link:hover {
  color: var(--md-accent-fg-color);
}

/* active：accent */
.md-sidebar--primary .md-nav__item--active>.md-nav__link,
.md-sidebar--secondary .md-nav__item--active>.md-nav__link {
  color: var(--md-accent-fg-color);
  font-weight: 600;
  opacity: 1;
}

/* ==========================================================================
   27) TOC 目前項目提示點（左側小圓點）
   ========================================================================== */

.md-sidebar--primary .md-nav__link--active,
.md-sidebar--primary .md-nav__item--active>.md-nav__link,
.md-sidebar--secondary .md-nav__link--active,
.md-sidebar--secondary .md-nav__item--active>.md-nav__link {
  position: relative;
  color: var(--md-accent-fg-color);
}

/* 小圓點 */
.md-sidebar--primary .md-nav__link--active::before,
.md-sidebar--primary .md-nav__item--active>.md-nav__link::before,
.md-sidebar--secondary .md-nav__link--active::before,
.md-sidebar--secondary .md-nav__item--active>.md-nav__link::before {
  content: "";
  position: absolute;
  left: -10px;
  top: 0.45em;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--md-accent-fg-color);
  box-shadow: 0 0 0 3px rgba(122, 211, 255, 0.18);
}

/* 亮色模式：小圓點用深色 */
[data-md-color-scheme="default"] .md-sidebar--primary .md-nav__link--active::before,
[data-md-color-scheme="light"] .md-sidebar--primary .md-nav__link--active::before,
[data-md-color-scheme="default"] .md-sidebar--primary .md-nav__item--active>.md-nav__link::before,
[data-md-color-scheme="light"] .md-sidebar--primary .md-nav__item--active>.md-nav__link::before,
[data-md-color-scheme="default"] .md-sidebar--secondary .md-nav__link--active::before,
[data-md-color-scheme="light"] .md-sidebar--secondary .md-nav__link--active::before,
[data-md-color-scheme="default"] .md-sidebar--secondary .md-nav__item--active>.md-nav__link::before,
[data-md-color-scheme="light"] .md-sidebar--secondary .md-nav__item--active>.md-nav__link::before {
  background: rgba(0, 0, 0, 0.85);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.12);
}

/* TOC title：更清爽（你後面有一大段 hard reset，這裡保留原設計） */
.md-sidebar--secondary .md-nav__title {
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--md-default-fg-color);
  background: transparent !important;
  background-color: transparent !important;
  background-image: none !important;
  box-shadow: none !important;
  opacity: 1;
  padding: 0.4rem 0 0.7rem 0;
  padding-left: 0.35rem;
  margin: 0 0 0.6rem 0;
  position: relative;
}

.md-sidebar--secondary .md-nav__title::before {
  display: none !important;
}

/* 強制清空 TOC title 背景區塊 */
.md-sidebar--secondary .md-nav__title,
.md-sidebar--secondary .md-nav--secondary>.md-nav__title,
.md-sidebar--secondary .md-nav__title[for] {
  background: transparent !important;
  background-color: transparent !important;
  background-image: none !important;
  box-shadow: none !important;
  filter: none !important;
  border-radius: 0 !important;
}

.md-sidebar--secondary .md-nav__title::before,
.md-sidebar--secondary .md-nav__title[for]::before {
  content: none !important;
}

.md-sidebar--secondary .md-nav__title::after {
  background-color: var(--md-primary-fg-color) !important;
}

/* Hard reset TOC containers（徹底清掉殘留背景） */
.md-sidebar--secondary .md-sidebar__inner,
.md-sidebar--secondary .md-nav,
.md-sidebar--secondary .md-nav__list,
.md-sidebar--secondary .md-nav__item {
  background: transparent !important;
  background-color: transparent !important;
  background-image: none !important;
  box-shadow: none !important;
}

.md-sidebar--secondary .md-nav__title,
.md-sidebar--secondary .md-nav__title[for],
.md-sidebar--secondary .md-nav--secondary>.md-nav__title {
  position: static !important;
}

/* Sticky TOC title blocks：全部清空 */
.md-sidebar--secondary .md-nav__title[for="__toc"],
.md-sidebar--secondary .md-nav--secondary .md-nav__title[for],
.md-sidebar--secondary .md-nav--secondary .md-nav__title--active {
  background: transparent !important;
  background-color: transparent !important;
  background-image: none !important;
  box-shadow: none !important;
  position: static !important;
  top: auto !important;
}

.md-sidebar--secondary .md-nav__title[for="__toc"]::before,
.md-sidebar--secondary .md-nav--secondary .md-nav__title--active::before {
  content: none !important;
  display: none !important;
}

.md-sidebar--secondary,
.md-sidebar--secondary .md-nav__title--active,
.md-sidebar--secondary .md-nav__title--active::before,
.md-sidebar--secondary .md-nav__title--active::after {
  background: transparent !important;
  background-color: transparent !important;
  background-image: none !important;
  box-shadow: none !important;
}

.md-sidebar--secondary .md-nav--secondary {
  background: transparent;
  box-shadow: none;
  padding-top: 0;
}

.md-sidebar--secondary .md-nav--secondary>.md-nav__title {
  background: transparent !important;
  background-color: transparent !important;
  box-shadow: none !important;
}

.md-sidebar--secondary .md-nav--secondary>.md-nav__title::after {
  content: none !important;
  display: none !important;
}

/* ==========================================================================
   28) Blog excerpt（註解保留區）
   ========================================================================== */

/* .md-post--excerpt {
    position: relative;
    overflow: hidden;
    padding: 1.35rem 1.6rem;
    border-radius: 16px;
    background:
        radial-gradient(260px 160px at 85% 0%, rgba(122, 211, 255, 0.16), transparent 65%),
        radial-gradient(220px 140px at 15% 100%, rgba(156, 123, 255, 0.12), transparent 70%),
        linear-gradient(160deg, rgba(18, 24, 38, 0.96), rgba(12, 16, 26, 0.96));
    border: 1px solid rgba(122, 211, 255, 0.28);
    box-shadow: 0 26px 60px rgba(0, 0, 0, 0.55);
    transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
} */

/* 卡片內的細線與光效層 */
/* .md-post--excerpt::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background:
        repeating-linear-gradient(90deg, rgba(122, 211, 255, 0.07) 0 1px, transparent 1px 12px),
        repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.025) 0 1px, transparent 1px 6px),
        linear-gradient(120deg, rgba(122, 211, 255, 0.16), transparent 40%);
    opacity: 0.55;
    mix-blend-mode: screen;
    pointer-events: none;
} */

/* 右上角「折角」裝飾 */
/* .md-post--excerpt::after {
    content: "";
    position: absolute;
    top: 10px;
    right: 12px;
    width: 48px;
    height: 48px;
    border-top: 2px solid rgba(122, 211, 255, 0.7);
    border-right: 2px solid rgba(122, 211, 255, 0.4);
    border-top-right-radius: 12px;
    opacity: 0.9;
} */

/* hover：卡片浮起 + 更亮 */
/* .md-post--excerpt:hover {
    transform: translateY(-4px);
    border-color: rgba(122, 211, 255, 0.45);
    box-shadow: 0 34px 80px rgba(0, 0, 0, 0.65);
} */

/* 文章 meta：小字、全大寫 */
.md-post__meta {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--md-default-fg-color--lighter);
}

.md-post__content h2 a {
  font-weight: 600;
  letter-spacing: 0.05em;
}

.md-post__action a {
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.7rem;
}

/* Blog cards：在內容區用 inline-flex 做兩欄/三欄 */
/* .md-content__inner>article.md-post--excerpt {
    display: inline-flex;
    flex-direction: column;
    width: calc(50% - 1rem);
    margin: 0.5rem;
    vertical-align: top;
} */

/* 超寬螢幕：三欄 */
/* @media (min-width: 90em) {
    .md-content__inner>article.md-post--excerpt {
        width: calc(33.333% - 1rem);
    }
} */

/* 中小螢幕：一欄 */
/* @media (max-width: 70em) {
    .md-content__inner>article.md-post--excerpt {
        width: calc(100% - 1rem);
    }
} */

/* 支援 :has() 的瀏覽器：改用 grid，更穩定的卡片排版 */
@supports selector(:has(*)) {
  .md-content__inner:has(> article.md-post--excerpt) {
    display: grid !important;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)) !important;
    gap: 1.2rem !important;
    align-items: start !important;
  }

  .md-content__inner:has(> article.md-post--excerpt)>article.md-post--excerpt {
    width: auto !important;
    margin: 0 !important;
  }

  .md-content__inner:has(> article.md-post--excerpt)> :not(article.md-post--excerpt) {
    grid-column: 1 / -1 !important;
  }
}

/* grid cards（Material 的 cards grid） */
.md-typeset .grid.cards>* {
  background: var(--peicd-card);
  border: 1px solid var(--peicd-border);
  border-radius: 16px;
  box-shadow: var(--peicd-shadow-1);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.md-typeset .grid.cards>*:hover {
  transform: translateY(-3px);
  border-color: rgba(122, 211, 255, 0.35);
  box-shadow: var(--peicd-shadow-2);
}

/* 亮色模式 sidebar 邊線顏色 */
[data-md-color-scheme="default"] .md-sidebar--primary .md-sidebar__scrollwrap,
[data-md-color-scheme="light"] .md-sidebar--primary .md-sidebar__scrollwrap {
  border-right-color: rgba(0, 0, 0, 0.08);
}

[data-md-color-scheme="default"] .md-sidebar--secondary .md-sidebar__scrollwrap,
[data-md-color-scheme="light"] .md-sidebar--secondary .md-sidebar__scrollwrap {
  border-left-color: rgba(0, 0, 0, 0.08);
}

/* 亮色模式 TOC title */
[data-md-color-scheme="default"] .md-sidebar--secondary .md-nav__title,
[data-md-color-scheme="light"] .md-sidebar--secondary .md-nav__title {
  color: rgba(0, 0, 0, 0.7);
  border-bottom-color: rgba(0, 0, 0, 0.08);
  opacity: 1;
}

[data-md-color-scheme="default"] .md-sidebar--secondary .md-nav--secondary>.md-nav__title::after,
[data-md-color-scheme="light"] .md-sidebar--secondary .md-nav--secondary>.md-nav__title::after {
  background: currentColor;
  opacity: 0.28;
}

/* 亮色模式 blog excerpt 背景改成白卡片 */
/* [data-md-color-scheme="default"] .md-post--excerpt,
[data-md-color-scheme="light"] .md-post--excerpt {
    background:
        radial-gradient(240px 140px at 85% 0%, rgba(31, 111, 255, 0.12), transparent 70%),
        radial-gradient(220px 140px at 12% 100%, rgba(91, 134, 255, 0.1), transparent 70%),
        linear-gradient(160deg, #ffffff, #f7f9fd);
    border-color: rgba(31, 111, 255, 0.16);
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.12);
} */

/* 亮色模式 TOC link 顏色 */
[data-md-color-scheme="default"] .md-sidebar--secondary .md-nav__link,
[data-md-color-scheme="light"] .md-sidebar--secondary .md-nav__link {
  color: rgba(0, 0, 0, 0.72);
}

[data-md-color-scheme="default"] .md-sidebar--secondary .md-nav__link:hover,
[data-md-color-scheme="light"] .md-sidebar--secondary .md-nav__link:hover,
[data-md-color-scheme="default"] .md-sidebar--secondary .md-nav__item--active>.md-nav__link,
[data-md-color-scheme="light"] .md-sidebar--secondary .md-nav__item--active>.md-nav__link {
  color: rgba(0, 0, 0, 0.86);
}

/* ==========================================================================
   29) 頁面背景（容器）
   ========================================================================== */

.md-container {
  background:
    radial-gradient(1200px 800px at 12% -20%, rgba(122, 211, 255, 0.08), transparent 60%),
    radial-gradient(900px 600px at 95% 0%, rgba(107, 92, 170, 0.16), transparent 55%),
    var(--md-default-bg-color);
}

/* ==========================================================================
   30) PEICD Selection System v12 Clean
   - Tabs：選取框縮小（不撐滿 tabs 高度）
   - Sidebar：只對真正連結顯示四角（排除 .md-nav__container）
   - Images：改成「和程式碼方塊同款」的四角線段（不同顏色）
   - Code：四角 + 背光，並支援 /// collapse-code（外層統一負責）
   ========================================================================== */

/* 第二段 :root（Selection v12 變數） */
:root {
  /* =========================
     通用四角參數（給 code / image / nav / tabs 共用）
     ========================= */
  --peicd-sel-corner: 10px;
  /* 角落線段長度 */
  --peicd-sel-line: 2px;
  /* 角落線段粗細 */

  /* tabs 專用：角落略小 */
  --peicd-tab-corner: 8px;
  --peicd-tab-line: 2px;

  /* =========================
     Image（紫色系）
     - img 的四角線段顏色與 glow
     - 重要：img 不能用 ::before/::after，所以用 padding + background layers 來畫角
     ========================= */
  --peicd-img-accent: rgb(191, 149, 249);
  /* 圖片四角線段顏色 */
  --peicd-img-glow: rgba(191, 149, 249, 0.38);
  /* 圖片背光顏色（外光暈） */
  --peicd-img-frame: 6px;
  /* 圖片外框厚度（用 padding 實作） */

  /* =========================
     Code（藍色系）
     ========================= */
  --peicd-code-accent: rgb(122, 211, 255);
  --peicd-code-glow: rgba(122, 211, 255, 0.34);
  --peicd-collapse-fade-start: rgba(246, 250, 253, 0);
  --peicd-collapse-fade-end: rgba(246, 250, 253, 0.94);

  /* =========================
     Nav/Tabs（青藍系）
     ========================= */
  --peicd-nav-hover-corner: rgb(170, 238, 255);
  --peicd-nav-active-corner: rgb(80, 214, 255);
  --peicd-nav-hover-glow: rgba(80, 214, 255, 0.16);
  --peicd-nav-active-glow: rgba(80, 214, 255, 0.22);
  --peicd-nav-text: rgb(80, 214, 255);
  --peicd-secondary-sidebar-base-width: 15rem;
  --peicd-secondary-sidebar-max-width: 20.5rem;
  --peicd-secondary-sidebar-width: clamp(var(--peicd-secondary-sidebar-base-width), calc(100vw - 73rem), var(--peicd-secondary-sidebar-max-width));
  --peicd-secondary-sidebar-extra-width: max(0px, calc(var(--peicd-secondary-sidebar-width) - var(--peicd-secondary-sidebar-base-width)));
  --peicd-main-layout-max-width: calc(61rem + var(--peicd-secondary-sidebar-extra-width));
}

/* --------------------------------------------------------------------------
   A) Hard cleanup：去掉「黑灰陰影」來源
   - 你前面給 pre 上了 shadow；但 Selection System 的四角/背光自己負責，所以這裡清掉
   -------------------------------------------------------------------------- */
.md-typeset pre {
  box-shadow: none !important;
}

/* --------------------------------------------------------------------------
   B) Images：四角 + 背光（改成和 code block 同款做法）
   - 因為 img 不能用 ::before/::after，所以用 padding 當外框區，並在 background 畫四角線段
   - 相容結構：p/figure 直屬 img，或 a > img
   - 即使前後有 <br>，只要 img 仍是 p/figure 的直屬子元素，就會生效
    -------------------------------------------------------------------------- */
.md-content__inner.md-typeset {
  --peicd-article-img-max-width: 70%;
}

article.md-content__inner.md-typeset img:not(.twemoji),
.md-content__inner.md-typeset img:not(.twemoji) {
  /* 基礎排版：居中、等比例 */
  display: block !important;
  max-width: var(--peicd-article-img-max-width) !important;
  height: auto !important;
  margin: 0.65rem auto !important;

  /* 盒模型：用 padding 模擬「外框厚度」（img 本身無法用 pseudo-element 疊角） */
  box-sizing: border-box !important;
  border: 0 !important;
  border-radius: 0 !important;
  padding: var(--peicd-img-frame) !important;

  /* 四角線段（8 層）：位置/尺寸完全沿用 code block 的配置邏輯 */
  background-image:
    linear-gradient(var(--peicd-img-accent) 0 0),
    linear-gradient(var(--peicd-img-accent) 0 0),
    linear-gradient(var(--peicd-img-accent) 0 0),
    linear-gradient(var(--peicd-img-accent) 0 0),
    linear-gradient(var(--peicd-img-accent) 0 0),
    linear-gradient(var(--peicd-img-accent) 0 0),
    linear-gradient(var(--peicd-img-accent) 0 0),
    linear-gradient(var(--peicd-img-accent) 0 0),

    /* 淡紫色填充底（最後一層）：讓外框區有一點質感（圖片內容本身會覆蓋它） */
    linear-gradient(90deg, rgba(191, 149, 249, 0.10), rgba(191, 149, 249, 0));

  background-repeat: no-repeat !important;

  /* 8 個角落線段的位置 + 最後一層填充（0 0） */
  background-position:
    left top, left top,
    right top, right top,
    left bottom, left bottom,
    right bottom, right bottom,
    0 0 !important;

  /* 8 個角落線段尺寸（角長/線粗） + 填充滿版（100% 100%） */
  background-size:
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    100% 100% !important;

  /* 背景對齊：以 border-box 計算角落位置（配合 padding 當外框區） */
  background-origin: border-box !important;
  background-clip: padding-box !important;

  /* 背光：用與 code block 類似的兩層 glow（只是顏色換紫） */
  box-shadow:
    0 0 0.9rem rgba(191, 149, 249, 0.26),
    0 0 2.4rem var(--peicd-img-glow) !important;

  /* 動畫：hover 浮起 + glow 更亮 + 角落略放大 */
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    filter 180ms ease,
    background-size 180ms ease !important;

  will-change: transform;
}

@media (max-width: 59.999em) {
  .md-content__inner.md-typeset {
    --peicd-article-img-max-width: 100%;
  }
}

article.md-content__inner.md-typeset img.peicd-zoomable-image:not(.twemoji),
.md-content__inner.md-typeset img.peicd-zoomable-image:not(.twemoji) {
  cursor: zoom-in !important;
}

/* hover：浮起、背光增強、角落線段「微放大」以貼近 code block 的 ::before scale 感 */
article.md-content__inner.md-typeset img:not(.twemoji):hover,
.md-content__inner.md-typeset img:not(.twemoji):hover {
  transform: translateY(-2px) !important;

  box-shadow:
    0 0 1.1rem rgba(191, 149, 249, 0.32),
    0 0 3.0rem var(--peicd-img-glow) !important;

  filter: drop-shadow(0 0 14px var(--peicd-img-glow)) !important;

  /* hover 時把角長 +1px，模擬 code block 的角落 scale */
  background-size:
    calc(var(--peicd-sel-corner) + 1px) var(--peicd-sel-line),
    var(--peicd-sel-line) calc(var(--peicd-sel-corner) + 1px),
    calc(var(--peicd-sel-corner) + 1px) var(--peicd-sel-line),
    var(--peicd-sel-line) calc(var(--peicd-sel-corner) + 1px),
    calc(var(--peicd-sel-corner) + 1px) var(--peicd-sel-line),
    var(--peicd-sel-line) calc(var(--peicd-sel-corner) + 1px),
    calc(var(--peicd-sel-corner) + 1px) var(--peicd-sel-line),
    var(--peicd-sel-line) calc(var(--peicd-sel-corner) + 1px),
    100% 100% !important;
}

html.peicd-image-viewer-open,
html.peicd-image-viewer-open body {
  overflow: hidden;
}

.peicd-image-viewer {
  background: rgba(248, 250, 252, 0.64);
  border: 0;
  height: 100dvh;
  margin: 0;
  max-height: none;
  max-width: none;
  padding: 0;
  width: 100vw;
}

.peicd-image-viewer::backdrop {
  background: rgba(248, 250, 252, 0.64);
  backdrop-filter: blur(2px);
}

.peicd-image-viewer__shell {
  height: 100%;
  position: relative;
  width: 100%;
}

.peicd-image-viewer__stage {
  align-items: center;
  cursor: zoom-out;
  display: flex;
  height: 100%;
  justify-content: center;
  overflow: hidden;
  padding: 5.4rem 2.2rem 5.8rem;
  width: 100%;
}

.peicd-image-viewer__canvas {
  align-items: center;
  display: flex;
  justify-content: center;
  position: relative;
  transform: translate3d(0, 0, 0);
  will-change: transform;
}

.peicd-image-viewer__img {
  border: 0;
  box-shadow: 0 1.6rem 4rem rgba(12, 18, 30, 0.16);
  cursor: zoom-in;
  display: block;
  margin: 0;
  max-height: none;
  max-width: none;
  touch-action: none;
  transform-origin: center center;
  user-select: none;
  will-change: transform;
}

.peicd-image-viewer__img.is-draggable {
  cursor: grab;
}

.peicd-image-viewer__img.is-dragging {
  cursor: grabbing;
}

.peicd-image-viewer__close {
  align-items: center;
  appearance: none;
  background: rgba(33, 37, 41, 0.76);
  border: 0;
  border-radius: 999px;
  color: #fff;
  cursor: pointer;
  display: inline-flex;
  font-size: 2rem;
  height: 2.8rem;
  justify-content: center;
  line-height: 1;
  position: absolute;
  right: 1.2rem;
  top: 0.95rem;
  width: 2.8rem;
  z-index: 2;
}

.peicd-image-viewer__toolbar {
  align-items: center;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(41, 104, 130, 0.12);
  border-radius: 0.95rem;
  bottom: max(1rem, env(safe-area-inset-bottom));
  box-shadow: 0 1rem 2.2rem rgba(12, 18, 30, 0.12);
  display: inline-flex;
  gap: 0.1rem;
  left: 50%;
  padding: 0.2rem;
  position: absolute;
  transform: translateX(-50%);
  z-index: 2;
}

.peicd-image-viewer__tool {
  align-items: center;
  appearance: none;
  background: transparent !important;
  border: 0 !important;
  border-radius: 0.8rem !important;
  box-shadow: none !important;
  color: rgba(20, 45, 58, 0.92) !important;
  cursor: pointer;
  display: inline-flex;
  font: inherit;
  font-size: 1.05rem;
  font-weight: 600;
  height: 2.45rem;
  justify-content: center;
  min-width: 2.45rem;
  padding: 0 0.82rem;
  text-decoration: none !important;
}

.peicd-image-viewer__tool:hover,
.peicd-image-viewer__tool:focus-visible {
  background: rgba(114, 227, 253, 0.12) !important;
  color: rgba(11, 35, 48, 0.98) !important;
  outline: none;
}

.peicd-image-viewer__zoom-value {
  font-size: 0.92rem;
  min-width: 4.7rem;
}

.peicd-image-viewer__source {
  font-size: 1rem;
}

[data-md-color-scheme="slate"] .peicd-image-viewer,
[data-md-color-scheme="dracula"] .peicd-image-viewer {
  background: rgba(9, 12, 18, 0.72);
}

[data-md-color-scheme="slate"] .peicd-image-viewer::backdrop,
[data-md-color-scheme="dracula"] .peicd-image-viewer::backdrop {
  background: rgba(9, 12, 18, 0.72);
}

[data-md-color-scheme="slate"] .peicd-image-viewer__toolbar,
[data-md-color-scheme="dracula"] .peicd-image-viewer__toolbar {
  background: rgba(17, 24, 36, 0.92);
  border-color: rgba(114, 227, 253, 0.16);
  box-shadow: 0 1rem 2.4rem rgba(0, 0, 0, 0.32);
}

[data-md-color-scheme="slate"] .peicd-image-viewer__tool,
[data-md-color-scheme="dracula"] .peicd-image-viewer__tool {
  color: rgba(232, 241, 247, 0.92) !important;
}

[data-md-color-scheme="slate"] .peicd-image-viewer__tool:hover,
[data-md-color-scheme="slate"] .peicd-image-viewer__tool:focus-visible,
[data-md-color-scheme="dracula"] .peicd-image-viewer__tool:hover,
[data-md-color-scheme="dracula"] .peicd-image-viewer__tool:focus-visible {
  background: rgba(114, 227, 253, 0.12) !important;
  color: #fff !important;
}

@media (max-width: 59.999em) {
  .peicd-image-viewer__stage {
    padding: 4.3rem 0.8rem 5.2rem;
  }

  .peicd-image-viewer__close {
    right: 0.8rem;
    top: 0.72rem;
  }

  .peicd-image-viewer__toolbar {
    bottom: max(0.78rem, env(safe-area-inset-bottom));
  }
}

/* --------------------------------------------------------------------------
   C) Mermaid：置中圖卡 + Hover + 放大檢視
   -------------------------------------------------------------------------- */
:root {
  --peicd-mermaid-surface: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(245, 250, 253, 0.98) 100%);
  --peicd-mermaid-border: rgba(41, 104, 130, 0.14);
  --peicd-mermaid-border-strong: rgba(70, 170, 205, 0.44);
  --peicd-mermaid-shadow:
    0 0 1.1rem rgba(114, 227, 253, 0.12),
    0 1.15rem 2.7rem rgba(12, 18, 30, 0.12);
  --peicd-mermaid-hover-shadow:
    0 0 1.35rem rgba(114, 227, 253, 0.18),
    0 1.45rem 3rem rgba(12, 18, 30, 0.16);
  --peicd-mermaid-scrollbar: rgba(19, 73, 97, 0.18);
}

[data-md-color-scheme="slate"],
[data-md-color-scheme="dracula"] {
  --peicd-mermaid-surface: linear-gradient(180deg, rgba(3, 3, 3, 0.98) 0%, rgba(0, 0, 0, 0.98) 100%);
  --peicd-mermaid-border: rgba(114, 227, 253, 0.18);
  --peicd-mermaid-border-strong: rgba(114, 227, 253, 0.58);
  --peicd-mermaid-shadow:
    0 0 1.25rem rgba(114, 227, 253, 0.16),
    0 1.3rem 3rem rgba(0, 0, 0, 0.28);
  --peicd-mermaid-hover-shadow:
    0 0 1.6rem rgba(114, 227, 253, 0.22),
    0 1.55rem 3.2rem rgba(0, 0, 0, 0.34);
  --peicd-mermaid-scrollbar: rgba(114, 227, 253, 0.2);
}

.md-typeset .peicd-mermaid-host {
  background: var(--peicd-mermaid-surface);
  border: 1px solid var(--peicd-mermaid-border);
  border-radius: 1rem;
  box-shadow: var(--peicd-mermaid-shadow);
  box-sizing: border-box;
  cursor: zoom-in;
  display: block;
  isolation: isolate;
  margin: 1rem auto 1.35rem;
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 0.95rem 1rem;
  position: relative;
  scrollbar-color: var(--peicd-mermaid-scrollbar) transparent;
  scrollbar-width: thin;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease,
    filter 180ms ease;
  user-select: none;
  width: fit-content;
}

.md-typeset .peicd-mermaid-host.is-pending,
.md-typeset .peicd-mermaid-host.is-rendering,
.md-typeset .peicd-mermaid-host.is-error {
  align-items: center;
  background: #000000;
  color: #72e3fd;
  cursor: default;
  display: flex;
  justify-content: center;
  min-height: 6rem;
  width: min(100%, 58rem);
}

.md-typeset .peicd-mermaid-status {
  color: inherit;
  font-family: var(--md-code-font), "Cascadia Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0;
}

.md-typeset .peicd-mermaid-host::before {
  background-image:
    linear-gradient(var(--peicd-mermaid-border-strong) 0 0),
    linear-gradient(var(--peicd-mermaid-border-strong) 0 0),
    linear-gradient(var(--peicd-mermaid-border-strong) 0 0),
    linear-gradient(var(--peicd-mermaid-border-strong) 0 0),
    linear-gradient(var(--peicd-mermaid-border-strong) 0 0),
    linear-gradient(var(--peicd-mermaid-border-strong) 0 0),
    linear-gradient(var(--peicd-mermaid-border-strong) 0 0),
    linear-gradient(var(--peicd-mermaid-border-strong) 0 0);
  background-position:
    left top, left top,
    right top, right top,
    left bottom, left bottom,
    right bottom, right bottom;
  background-repeat: no-repeat;
  background-size:
    calc(var(--peicd-sel-corner) + 1px) var(--peicd-sel-line),
    var(--peicd-sel-line) calc(var(--peicd-sel-corner) + 1px),
    calc(var(--peicd-sel-corner) + 1px) var(--peicd-sel-line),
    var(--peicd-sel-line) calc(var(--peicd-sel-corner) + 1px),
    calc(var(--peicd-sel-corner) + 1px) var(--peicd-sel-line),
    var(--peicd-sel-line) calc(var(--peicd-sel-corner) + 1px),
    calc(var(--peicd-sel-corner) + 1px) var(--peicd-sel-line),
    var(--peicd-sel-line) calc(var(--peicd-sel-corner) + 1px);
  border-radius: inherit;
  content: "";
  inset: 0.32rem;
  pointer-events: none;
  position: absolute;
  z-index: 1;
}

.md-typeset .peicd-mermaid-host:hover,
.md-typeset .peicd-mermaid-host:focus-visible {
  border-color: var(--peicd-mermaid-border-strong);
  box-shadow: var(--peicd-mermaid-hover-shadow);
  filter: drop-shadow(0 0 14px rgba(114, 227, 253, 0.18));
  outline: none;
  transform: translateY(-2px);
}

.md-typeset .peicd-mermaid-host::-webkit-scrollbar {
  height: 0.42rem;
}

.md-typeset .peicd-mermaid-host::-webkit-scrollbar-thumb {
  background: var(--peicd-mermaid-scrollbar);
  border-radius: 999px;
}

.md-typeset .peicd-mermaid-host > svg,
.md-typeset .peicd-mermaid-host > .peicd-mermaid-svg {
  display: block;
  height: auto !important;
  margin: 0 auto;
  max-width: min(100%, 58rem);
  position: relative;
  z-index: 0;
}

/* Mermaid htmlLabels 會用 foreignObject 包 div；外部行高或字型墨跡若超出
   Mermaid 量測出的裁切框，g/p/y 這類 descender 會被 SVG 裁掉。 */
:is(.peicd-mermaid-svg, .peicd-mermaid-viewer__svg) foreignObject {
  overflow: visible !important;
}

:is(.peicd-mermaid-svg, .peicd-mermaid-viewer__svg) foreignObject > div {
  letter-spacing: normal !important;
  line-height: 1.18 !important;
  overflow: visible !important;
}

:is(.peicd-mermaid-svg, .peicd-mermaid-viewer__svg) .nodeLabel {
  line-height: inherit !important;
}

[data-md-color-scheme="slate"] :is(.peicd-mermaid-svg, .peicd-mermaid-viewer__svg),
[data-md-color-scheme="dracula"] :is(.peicd-mermaid-svg, .peicd-mermaid-viewer__svg) {
  --peicd-flow-node-bg: #31284d;
  --peicd-flow-node-border: #72e3fd;
  --peicd-flow-text: #f8fbff;
  --peicd-flow-edge: #d9c7ff;
  --peicd-flow-edge-label-bg: #141b2a;
}

[data-md-color-scheme="slate"] :is(.peicd-mermaid-svg, .peicd-mermaid-viewer__svg) :is(.node rect, .node circle, .node ellipse, .node polygon, .node path),
[data-md-color-scheme="dracula"] :is(.peicd-mermaid-svg, .peicd-mermaid-viewer__svg) :is(.node rect, .node circle, .node ellipse, .node polygon, .node path) {
  fill: var(--peicd-flow-node-bg) !important;
  stroke: var(--peicd-flow-node-border) !important;
  stroke-width: 1.5px !important;
}

[data-md-color-scheme="slate"] :is(.peicd-mermaid-svg, .peicd-mermaid-viewer__svg) :is(.nodeLabel, .nodeLabel p, .edgeLabel, .edgeLabel p, .edgeLabel span),
[data-md-color-scheme="dracula"] :is(.peicd-mermaid-svg, .peicd-mermaid-viewer__svg) :is(.nodeLabel, .nodeLabel p, .edgeLabel, .edgeLabel p, .edgeLabel span) {
  color: var(--peicd-flow-text) !important;
}

[data-md-color-scheme="slate"] :is(.peicd-mermaid-svg, .peicd-mermaid-viewer__svg) :is(.labelText, :not(.branchLabel) > .label text),
[data-md-color-scheme="dracula"] :is(.peicd-mermaid-svg, .peicd-mermaid-viewer__svg) :is(.labelText, :not(.branchLabel) > .label text) {
  fill: var(--peicd-flow-text) !important;
}

[data-md-color-scheme="slate"] :is(.peicd-mermaid-svg, .peicd-mermaid-viewer__svg) :is(.edgeLabel rect, .edgeLabel .labelBkg),
[data-md-color-scheme="dracula"] :is(.peicd-mermaid-svg, .peicd-mermaid-viewer__svg) :is(.edgeLabel rect, .edgeLabel .labelBkg) {
  fill: var(--peicd-flow-edge-label-bg) !important;
  opacity: 0.96 !important;
}

[data-md-color-scheme="slate"] :is(.peicd-mermaid-svg, .peicd-mermaid-viewer__svg) :is(.flowchart-link, .edgePath .path),
[data-md-color-scheme="dracula"] :is(.peicd-mermaid-svg, .peicd-mermaid-viewer__svg) :is(.flowchart-link, .edgePath .path) {
  stroke: var(--peicd-flow-edge) !important;
}

.peicd-mermaid-viewer .peicd-image-viewer__stage {
  cursor: default;
}

.peicd-mermaid-viewer .peicd-image-viewer__img {
  cursor: zoom-in;
  transform: none !important;
  will-change: auto;
}

.peicd-mermaid-viewer .peicd-image-viewer__canvas {
  cursor: zoom-in;
}

.peicd-mermaid-viewer .peicd-mermaid-viewer__svg {
  shape-rendering: geometricPrecision;
  text-rendering: geometricPrecision;
}

.peicd-mermaid-viewer .peicd-image-viewer__img.is-draggable {
  cursor: grab;
}

.peicd-mermaid-viewer .peicd-image-viewer__img.is-dragging {
  cursor: grabbing;
}

@media (max-width: 59.999em) {
  .md-typeset .peicd-mermaid-host {
    padding: 0.82rem 0.75rem;
  }

  .md-typeset .peicd-mermaid-host > svg,
  .md-typeset .peicd-mermaid-host > .peicd-mermaid-svg {
    max-width: 100%;
  }
}

/* --------------------------------------------------------------------------
   D) Code blocks：四角 + 背光（highlight / codehilite / highlighttable）
   -------------------------------------------------------------------------- */
.md-typeset :is(.highlight, .codehilite, .highlighttable) {
  position: relative !important;
  /* 讓 ::before 能定位 */
  isolation: isolate !important;
  /* 讓混合/疊層在此元素內獨立 */
  overflow: visible !important;
  /* 允許 glow 外溢 */

  border: 0 !important;
  border-radius: 0 !important;
  background: none !important;

  /* 背光 */
  box-shadow:
    0 0 0.9rem rgba(122, 211, 255, 0.26),
    0 0 2.4rem var(--peicd-code-glow) !important;

  transition: transform 180ms ease, box-shadow 180ms ease, filter 180ms ease !important;
  will-change: transform;
}

/* 四角線段（用 ::before 疊上去，避免被 pre / footer 影響） */
.md-typeset :is(.highlight, .codehilite, .highlighttable)::before {
  content: "" !important;
  position: absolute !important;
  inset: 0 !important;
  z-index: 5 !important;
  pointer-events: none !important;

  /* 8 層線段：四角（每角兩段） */
  background-image:
    linear-gradient(var(--peicd-code-accent) 0 0),
    linear-gradient(var(--peicd-code-accent) 0 0),
    linear-gradient(var(--peicd-code-accent) 0 0),
    linear-gradient(var(--peicd-code-accent) 0 0),
    linear-gradient(var(--peicd-code-accent) 0 0),
    linear-gradient(var(--peicd-code-accent) 0 0),
    linear-gradient(var(--peicd-code-accent) 0 0),
    linear-gradient(var(--peicd-code-accent) 0 0) !important;

  background-repeat: no-repeat !important;

  /* 每兩個一組：左上、右上、左下、右下 */
  background-position:
    left top, left top,
    right top, right top,
    left bottom, left bottom,
    right bottom, right bottom !important;

  /* 每角兩段：水平段(角長 x 線粗)、垂直段(線粗 x 角長) */
  background-size:
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner) !important;

  opacity: 1 !important;
  transform: scale(1) !important;
  transition: transform 180ms ease, filter 180ms ease !important;

  /* 初始不額外加 drop-shadow（hover 再加） */
  filter: drop-shadow(0 0 10px rgba(0, 0, 0, 0)) !important;
}

/* code hover：浮起 + 背光加強 */
.md-typeset :is(.highlight, .codehilite, .highlighttable):hover {
  transform: translateY(-2px) !important;
  box-shadow:
    0 0 1.1rem rgba(122, 211, 255, 0.32),
    0 0 3.0rem var(--peicd-code-glow) !important;
}

/* hover 時四角略放大 + 加 glow 的 drop-shadow */
.md-typeset :is(.highlight, .codehilite, .highlighttable):hover::before {
  transform: scale(1.015) !important;
  filter: drop-shadow(0 0 14px var(--peicd-code-glow)) !important;
}

/* 清掉 pre 內部邊框/陰影，避免混入其他底色 */
.md-typeset :is(.highlight, .codehilite, .highlighttable) pre {
  margin: 0 !important;
  border: 0 !important;
  border-radius: 0 !important;
  box-shadow: none !important;
}

/* --------------------------------------------------------------------------
   D) /// collapse-code：外層負責四角 + 背光（避免 footer 漸層蓋掉角落）
   -------------------------------------------------------------------------- */
.md-typeset .collapse-code {
  position: relative !important;
  isolation: isolate !important;
  overflow: visible !important;

  border: 0 !important;
  border-radius: 0 !important;
  background: none !important;

  box-shadow:
    0 0 0.9rem rgba(122, 211, 255, 0.26),
    0 0 2.8rem var(--peicd-code-glow) !important;

  transition: transform 180ms ease, box-shadow 180ms ease, filter 180ms ease !important;
  will-change: transform;
}

.md-typeset .collapse-code::before {
  content: "" !important;
  position: absolute !important;
  inset: 0 !important;
  z-index: 200 !important;
  pointer-events: none !important;

  background-image:
    linear-gradient(var(--peicd-code-accent) 0 0),
    linear-gradient(var(--peicd-code-accent) 0 0),
    linear-gradient(var(--peicd-code-accent) 0 0),
    linear-gradient(var(--peicd-code-accent) 0 0),
    linear-gradient(var(--peicd-code-accent) 0 0),
    linear-gradient(var(--peicd-code-accent) 0 0),
    linear-gradient(var(--peicd-code-accent) 0 0),
    linear-gradient(var(--peicd-code-accent) 0 0) !important;

  background-repeat: no-repeat !important;
  background-position:
    left top, left top,
    right top, right top,
    left bottom, left bottom,
    right bottom, right bottom !important;

  background-size:
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner) !important;

  opacity: 1 !important;
  transform: scale(1) !important;
  transition: transform 180ms ease, filter 180ms ease !important;
  filter: drop-shadow(0 0 10px rgba(0, 0, 0, 0)) !important;
}

.md-typeset .collapse-code:hover {
  transform: translateY(-2px) !important;
  box-shadow:
    0 0 1.1rem rgba(122, 211, 255, 0.32),
    0 0 3.2rem var(--peicd-code-glow) !important;
}

.md-typeset .collapse-code:hover::before {
  transform: scale(1.02) !important;
  filter: drop-shadow(0 0 14px rgba(122, 211, 255, 0.55)) !important;
}

/* 內層 highlight：全部清掉四角與陰影，避免雙層效果 */
.md-typeset .collapse-code :is(.highlight, .codehilite, .highlighttable) {
  box-shadow: none !important;
  transform: none !important;
  border: 0 !important;
}

.md-typeset .collapse-code :is(.highlight, .codehilite, .highlighttable)::before {
  content: none !important;
}

.md-typeset .collapse-code .code-footer {
  box-sizing: border-box !important;
  margin: 0 !important;
  pointer-events: none !important;
  z-index: 210 !important;
}

.md-typeset .collapse-code input:not(:checked) ~ .code-footer {
  position: relative !important;
  left: auto !important;
  right: auto !important;
  bottom: auto !important;
  width: auto !important;
  min-height: calc(1.45rem + 0.55rem) !important;
  padding: 0.35rem 0.65rem 0.5rem !important;
  border-top: 1px solid rgba(255, 255, 255, 0.045) !important;
  background: var(--md-code-bg-color) !important;
  background-image: none !important;
  box-shadow: inset 0 1px 0 rgba(114, 227, 253, 0.035) !important;
}

.md-typeset .collapse-code input:checked ~ .code-footer {
  position: absolute !important;
  left: 0.65rem !important;
  bottom: 0.55rem !important;
  width: auto !important;
  padding: 0 !important;
  background: none !important;
  background-image: none !important;
}

.md-typeset .collapse-code .code-footer label.icon-only {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 1.45rem !important;
  min-width: 1.45rem !important;
  height: 1.45rem !important;
  margin: 0 !important;
  padding: 0 !important;
  border: 1px solid rgba(114, 227, 253, 0.36) !important;
  border-radius: 0.18rem !important;
  background-color: rgba(114, 227, 253, 0.86) !important;
  box-shadow: 0 0 0.75rem rgba(114, 227, 253, 0.18) !important;
  pointer-events: auto !important;
  transition:
    background-color 140ms ease,
    border-color 140ms ease,
    box-shadow 140ms ease,
    transform 140ms ease !important;
  vertical-align: top !important;
}

.md-typeset .collapse-code .code-footer label.icon-only:hover,
.md-typeset .collapse-code .code-footer label.icon-only:focus-visible {
  background-color: rgba(122, 211, 255, 0.98) !important;
  border-color: rgba(170, 238, 255, 0.68) !important;
  box-shadow: 0 0 1rem rgba(114, 227, 253, 0.30) !important;
  transform: translateY(-1px) !important;
}

.md-typeset .collapse-code .code-footer label.icon-only::before {
  position: static !important;
  top: auto !important;
  left: auto !important;
  width: 0.82rem !important;
  height: 0.82rem !important;
  background-color: #001018 !important;
  background-size: 0.82rem !important;
}

.md-typeset .collapse-code .code-footer .collapse-code__sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.md-typeset .collapse-code input:checked ~ .code-footer label.icon-only.expand {
  display: inline-flex !important;
}

.md-typeset .collapse-code input:checked ~ .code-footer label.icon-only.collapse,
.md-typeset .collapse-code input:not(:checked) ~ .code-footer label.icon-only.expand {
  display: none !important;
}

/* --------------------------------------------------------------------------
   E) Sidebar nav：只對「真正可點擊項目」顯示四角
   - 排除 .md-nav__container
   - 排除祖先 active（不是當前頁 link 的）
   -------------------------------------------------------------------------- */
.md-sidebar--primary .md-nav__link,
.md-sidebar--secondary .md-nav__link {
  border-radius: 0 !important;
  /* Selection System 自己畫四角，不用圓角 */
}

/* 祖先 active 一律清空（避免章節標題也被點亮） */
.md-sidebar--primary .md-nav__item--active>.md-nav__link:not(.md-nav__link--active),
.md-sidebar--secondary .md-nav__item--active>.md-nav__link:not(.md-nav__link--active) {
  background: none !important;
  background-image: none !important;
  box-shadow: none !important;
  filter: none !important;
  color: inherit !important;
}

.md-sidebar--primary .md-nav__item--active>.md-nav__link:not(.md-nav__link--active)::before,
.md-sidebar--primary .md-nav__item--active>.md-nav__link:not(.md-nav__link--active)::after,
.md-sidebar--secondary .md-nav__item--active>.md-nav__link:not(.md-nav__link--active)::before,
.md-sidebar--secondary .md-nav__item--active>.md-nav__link:not(.md-nav__link--active)::after {
  content: none !important;
}

/* container link：完全禁止任何 hover/active 效果 */
.md-sidebar--primary .md-nav__link.md-nav__container,
.md-sidebar--secondary .md-nav__link.md-nav__container,
.md-sidebar--primary .md-nav__link.md-nav__container:hover,
.md-sidebar--secondary .md-nav__link.md-nav__container:hover,
.md-sidebar--primary .md-nav__link.md-nav__container.md-nav__link--active,
.md-sidebar--secondary .md-nav__link.md-nav__container.md-nav__link--active {
  background: none !important;
  background-image: none !important;
  box-shadow: none !important;
  filter: none !important;
  border: 0 !important;
  color: inherit !important;
}

.md-sidebar--primary .md-nav__link.md-nav__container::before,
.md-sidebar--primary .md-nav__link.md-nav__container::after,
.md-sidebar--secondary .md-nav__link.md-nav__container::before,
.md-sidebar--secondary .md-nav__link.md-nav__container::after {
  content: none !important;
}

/* 真正要套四角效果的 link */
.md-sidebar--primary .md-nav__link:not(.md-nav__container),
.md-sidebar--secondary .md-nav__link:not(.md-nav__container) {
  position: relative !important;
  border: 0 !important;
  background: none !important;
  box-shadow: none !important;
  transition: box-shadow 140ms ease, color 140ms ease !important;
}

/* hover：淡四角 + 淡背光 */
.md-sidebar--primary .md-nav__link:not(.md-nav__container):hover,
.md-sidebar--secondary .md-nav__link:not(.md-nav__container):hover {
  box-shadow: 0 0 0.9rem var(--peicd-nav-hover-glow) !important;
  color: var(--peicd-nav-text) !important;

  background-image:
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0) !important;

  background-repeat: no-repeat !important;
  background-position:
    left top, left top,
    right top, right top,
    left bottom, left bottom,
    right bottom, right bottom !important;

  background-size:
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner) !important;
}

/* active：深四角 + 強背光 */
.md-sidebar--primary .md-nav__link--active:not(.md-nav__container),
.md-sidebar--secondary .md-nav__link--active:not(.md-nav__container) {
  box-shadow: 0 0 1.1rem var(--peicd-nav-active-glow) !important;
  color: var(--peicd-nav-text) !important;
  font-weight: 600 !important;

  background-image:
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0) !important;

  background-repeat: no-repeat !important;
  background-position:
    left top, left top,
    right top, right top,
    left bottom, left bottom,
    right bottom, right bottom !important;

  background-size:
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner) !important;
}

/* --------------------------------------------------------------------------
   F) Tabs：選取框縮小（只包住 link 本身）
   -------------------------------------------------------------------------- */
.md-tabs__list {
  align-items: center !important;
}

.md-tabs__item {
  display: flex !important;
  align-items: center !important;
}

.md-tabs__link {
  position: relative !important;
  display: inline-flex !important;
  align-items: center !important;

  height: auto !important;
  padding: 0.25rem 0.78rem !important;
  margin: 0.28rem 0.16rem !important;

  border: 0 !important;
  border-radius: 0 !important;
  background: none !important;

  transition: box-shadow 140ms ease, color 140ms ease !important;
}

/* tabs hover：淡四角 */
.md-tabs__link:hover {
  box-shadow: 0 0 0.8rem var(--peicd-nav-hover-glow) !important;
  color: var(--peicd-nav-text) !important;

  background-image:
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0) !important;

  background-repeat: no-repeat !important;
  background-position:
    left top, left top,
    right top, right top,
    left bottom, left bottom,
    right bottom, right bottom !important;

  background-size:
    var(--peicd-tab-corner) var(--peicd-tab-line),
    var(--peicd-tab-line) var(--peicd-tab-corner),
    var(--peicd-tab-corner) var(--peicd-tab-line),
    var(--peicd-tab-line) var(--peicd-tab-corner),
    var(--peicd-tab-corner) var(--peicd-tab-line),
    var(--peicd-tab-line) var(--peicd-tab-corner),
    var(--peicd-tab-corner) var(--peicd-tab-line),
    var(--peicd-tab-line) var(--peicd-tab-corner) !important;
}

/* tabs active：深四角 */
.md-tabs__item--active>.md-tabs__link {
  box-shadow: 0 0 1.0rem var(--peicd-nav-active-glow) !important;
  color: var(--peicd-nav-text) !important;
  font-weight: 600 !important;

  background-image:
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0) !important;

  background-repeat: no-repeat !important;
  background-position:
    left top, left top,
    right top, right top,
    left bottom, left bottom,
    right bottom, right bottom !important;

  background-size:
    var(--peicd-tab-corner) var(--peicd-tab-line),
    var(--peicd-tab-line) var(--peicd-tab-corner),
    var(--peicd-tab-corner) var(--peicd-tab-line),
    var(--peicd-tab-line) var(--peicd-tab-corner),
    var(--peicd-tab-corner) var(--peicd-tab-line),
    var(--peicd-tab-line) var(--peicd-tab-corner),
    var(--peicd-tab-corner) var(--peicd-tab-line),
    var(--peicd-tab-line) var(--peicd-tab-corner) !important;
}

/* 移除 Material 內建 active indicator（避免重疊） */
.md-tabs__link::after,
.md-tabs__item--active>.md-tabs__link::after {
  content: none !important;
}

/* ==========================================================================
   31) Blog cards v3：矩形賽博卡（四角線段 + 玻璃底 + 掃描線）
   - 保持矩形：border-radius: 0
   - 四角用你 v12 的同款 8 層 linear-gradient 畫法
   - 顏色直接吃 code 的藍：--peicd-code-accent / --peicd-code-glow
   ========================================================================== */

.md-post--excerpt {
  position: relative;
  overflow: hidden;
  isolation: isolate;

  border-radius: 0 !important;
  /* 矩形 */
  border: 0 !important;

  padding: 1.25rem 1.4rem;

  /* 深色：玻璃漸層底 + 微粒感 */
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.015)),
    radial-gradient(900px 420px at 12% 0%, rgba(122, 211, 255, 0.12), transparent 60%),
    radial-gradient(700px 380px at 92% 105%, rgba(156, 123, 255, 0.10), transparent 62%),
    rgba(12, 16, 26, 0.88);

  /* 外層藍光 */
  box-shadow:
    0 22px 56px rgba(0, 0, 0, 0.60),
    0 0 34px rgba(122, 211, 255, 0.10);

  transition: transform 180ms ease, box-shadow 180ms ease, filter 180ms ease;
  will-change: transform;
}

/* 四角線段（跟 code block 同款） */
.md-post--excerpt::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 5;
  pointer-events: none;

  background-image:
    linear-gradient(var(--peicd-code-accent) 0 0),
    linear-gradient(var(--peicd-code-accent) 0 0),
    linear-gradient(var(--peicd-code-accent) 0 0),
    linear-gradient(var(--peicd-code-accent) 0 0),
    linear-gradient(var(--peicd-code-accent) 0 0),
    linear-gradient(var(--peicd-code-accent) 0 0),
    linear-gradient(var(--peicd-code-accent) 0 0),
    linear-gradient(var(--peicd-code-accent) 0 0);

  background-repeat: no-repeat;

  background-position:
    left top, left top,
    right top, right top,
    left bottom, left bottom,
    right bottom, right bottom;

  background-size:
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner);

  opacity: 0.95;
  filter: drop-shadow(0 0 10px rgba(122, 211, 255, 0.18));
  transition: transform 180ms ease, filter 180ms ease, opacity 180ms ease;
}

/* 掃描線 + 網格質感（不動外形，讓背景更「酷」） */
.md-post--excerpt::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;

  background:
    /* 掃描線 */
    repeating-linear-gradient(180deg,
      rgba(255, 255, 255, 0.035) 0 1px,
      transparent 1px 7px),
    /* 直向細格 */
    repeating-linear-gradient(90deg,
      rgba(122, 211, 255, 0.06) 0 1px,
      transparent 1px 14px),
    /* 上緣光帶 */
    linear-gradient(90deg,
      rgba(122, 211, 255, 0),
      rgba(122, 211, 255, 0.20),
      rgba(122, 211, 255, 0));

  mix-blend-mode: screen;
  opacity: 0.55;
}

/* hover：浮起、藍光增強、四角微放大（像你 code block hover 的感覺） */
.md-post--excerpt:hover {
  transform: translateY(-3px);
  filter: drop-shadow(0 0 18px rgba(122, 211, 255, 0.10));
  box-shadow:
    0 30px 74px rgba(0, 0, 0, 0.66),
    0 0 46px rgba(122, 211, 255, 0.16);
}

.md-post--excerpt:hover::before {
  transform: scale(1.02);
  filter: drop-shadow(0 0 14px var(--peicd-code-glow));
  opacity: 1;
}

/* 標題 hover 走 code 藍 */
.md-post__content h2 a:hover {
  color: var(--peicd-code-accent);
}

/* ==========================================================================
   32) Blog cards（Light mode）— Hologram Film
   - 只影響 default/light
   - 第三段 :root（holo 變數）
   ========================================================================== */

:root {
  --holo-accent: var(--peicd-code-accent, rgb(122, 211, 255));
  --holo-glow: rgba(122, 211, 255, 0.22);

  /* 面板底：不是純白 */
  --holo-panel-a: rgba(248, 250, 255, 0.84);
  --holo-panel-b: rgba(238, 244, 255, 0.70);
}

[data-md-color-scheme="default"] .md-post--excerpt,
[data-md-color-scheme="light"] .md-post--excerpt {
  position: relative !important;
  overflow: hidden !important;
  isolation: isolate !important;

  border: 0 !important;
  border-radius: 0 !important;

  background:
    /* 面板底 */
    linear-gradient(180deg, var(--holo-panel-a), var(--holo-panel-b)) !important;

  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.86),
    inset 0 0 0 2px rgba(15, 23, 42, 0.08),
    0 18px 46px rgba(15, 23, 42, 0.12),
    0 0 1.0rem rgba(122, 211, 255, 0.14),
    0 0 2.6rem rgba(122, 211, 255, 0.16) !important;

  transition: transform 180ms ease, box-shadow 180ms ease, filter 180ms ease !important;
  will-change: transform;
}

/* 四角線段（保留 code 邏輯） */
[data-md-color-scheme="default"] .md-post--excerpt::before,
[data-md-color-scheme="light"] .md-post--excerpt::before {
  content: "" !important;
  position: absolute !important;
  inset: 0 !important;
  z-index: 6 !important;
  pointer-events: none !important;

  background-image:
    linear-gradient(var(--holo-accent) 0 0),
    linear-gradient(var(--holo-accent) 0 0),
    linear-gradient(var(--holo-accent) 0 0),
    linear-gradient(var(--holo-accent) 0 0),
    linear-gradient(var(--holo-accent) 0 0),
    linear-gradient(var(--holo-accent) 0 0),
    linear-gradient(var(--holo-accent) 0 0),
    linear-gradient(var(--holo-accent) 0 0);

  background-repeat: no-repeat !important;
  background-position:
    left top, left top,
    right top, right top,
    left bottom, left bottom,
    right bottom, right bottom !important;

  background-size:
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner) !important;

  opacity: 0.92 !important;
  filter: drop-shadow(0 0 12px rgba(122, 211, 255, 0.16)) !important;
  transition: transform 180ms ease, filter 180ms ease, opacity 180ms ease !important;
}

/* 干涉膜：彩虹非常淡（不會整張變藍），hover 會漂移 */
[data-md-color-scheme="default"] .md-post--excerpt::after,
[data-md-color-scheme="light"] .md-post--excerpt::after {
  content: "" !important;
  position: absolute !important;
  inset: -40% -30% !important;
  z-index: 2 !important;
  pointer-events: none !important;

  background:
    /* 干涉膜彩色薄霧 */
    linear-gradient(115deg,
      rgba(255, 0, 180, 0.10),
      rgba(0, 220, 255, 0.10),
      rgba(120, 255, 120, 0.08),
      rgba(255, 220, 0, 0.08),
      rgba(160, 80, 255, 0.10)),
    /* 很淡的掃描線 */
    repeating-linear-gradient(180deg, rgba(15, 23, 42, 0.030) 0 1px, transparent 1px 8px);

  background-size: 180% 180%, auto;
  background-position: 0% 30%, 0 0;

  mix-blend-mode: overlay;
  opacity: 0.22;

  transform: translateX(-10%) translateY(0);
  transition: transform 600ms ease, opacity 180ms ease, background-position 600ms ease !important;
}

/* hover：浮起 + 更亮背光 + 干涉膜漂移 + 角落微放大 */
[data-md-color-scheme="default"] .md-post--excerpt:hover,
[data-md-color-scheme="light"] .md-post--excerpt:hover {
  transform: translateY(-4px) !important;
  filter: drop-shadow(0 0 18px rgba(122, 211, 255, 0.12)) !important;

  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.90),
    inset 0 0 0 2px rgba(15, 23, 42, 0.10),
    0 26px 70px rgba(15, 23, 42, 0.14),
    0 0 1.2rem rgba(122, 211, 255, 0.18),
    0 0 3.2rem var(--holo-glow) !important;
}

[data-md-color-scheme="default"] .md-post--excerpt:hover::before,
[data-md-color-scheme="light"] .md-post--excerpt:hover::before {
  transform: scale(1.02) !important;
  filter: drop-shadow(0 0 14px rgba(122, 211, 255, 0.20)) !important;
  opacity: 1 !important;
}

[data-md-color-scheme="default"] .md-post--excerpt:hover::after,
[data-md-color-scheme="light"] .md-post--excerpt:hover::after {
  opacity: 0.30;
  transform: translateX(12%) translateY(-2%);
  background-position: 100% 50%, 0 0;
}

/* focus-within：鍵盤導覽同樣高亮 */
[data-md-color-scheme="default"] .md-post--excerpt:focus-within,
[data-md-color-scheme="light"] .md-post--excerpt:focus-within {
  transform: translateY(-3px) !important;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.90),
    inset 0 0 0 2px rgba(15, 23, 42, 0.10),
    0 26px 70px rgba(15, 23, 42, 0.14),
    0 0 1.2rem rgba(122, 211, 255, 0.18),
    0 0 3.2rem var(--holo-glow) !important;
}

/* 文字：冷黑；標題 hover 走藍 */
[data-md-color-scheme="default"] .md-post__meta,
[data-md-color-scheme="light"] .md-post__meta {
  color: rgba(15, 23, 42, 0.58) !important;
}

[data-md-color-scheme="default"] .md-post__content h2 a,
[data-md-color-scheme="light"] .md-post__content h2 a {
  color: rgba(15, 23, 42, 0.88) !important;
}

[data-md-color-scheme="default"] .md-post__content h2 a:hover,
[data-md-color-scheme="light"] .md-post__content h2 a:hover {
  color: var(--holo-accent) !important;
}

/* 降低動態偏好 */
@media (prefers-reduced-motion: reduce) {

  [data-md-color-scheme="default"] .md-post--excerpt,
  [data-md-color-scheme="light"] .md-post--excerpt,
  [data-md-color-scheme="default"] .md-post--excerpt::before,
  [data-md-color-scheme="light"] .md-post--excerpt::before,
  [data-md-color-scheme="default"] .md-post--excerpt::after,
  [data-md-color-scheme="light"] .md-post--excerpt::after {
    transition: none !important;
  }
}

/* Blog cards：深色模式跟隨目前黑底筆記風格，移除藍灰玻璃底與網格。 */
[data-md-color-scheme="slate"] .md-post--excerpt,
[data-md-color-scheme="dracula"] .md-post--excerpt {
  background: #000000 !important;
  background-color: #000000 !important;
  background-image: none !important;
  border: 1px solid rgba(114, 227, 253, 0.16) !important;
  border-radius: 0 !important;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.035) inset,
    0 16px 32px rgba(0, 0, 0, 0.48) !important;
  display: flex;
  flex-direction: column;
  gap: 0.72rem;
  min-height: 9.2rem;
  padding: 1.1rem 1.25rem 1rem !important;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease !important;
}

[data-md-color-scheme="slate"] .md-post--excerpt::before,
[data-md-color-scheme="dracula"] .md-post--excerpt::before {
  filter: none !important;
  opacity: 0.72 !important;
}

[data-md-color-scheme="slate"] .md-post--excerpt::after,
[data-md-color-scheme="dracula"] .md-post--excerpt::after {
  content: none !important;
  display: none !important;
}

[data-md-color-scheme="slate"] .md-post--excerpt:hover,
[data-md-color-scheme="slate"] .md-post--excerpt:focus-within,
[data-md-color-scheme="dracula"] .md-post--excerpt:hover,
[data-md-color-scheme="dracula"] .md-post--excerpt:focus-within {
  border-color: rgba(114, 227, 253, 0.28) !important;
  box-shadow:
    0 0 0 1px rgba(114, 227, 253, 0.14) inset,
    0 18px 36px rgba(0, 0, 0, 0.58) !important;
  filter: none !important;
  transform: translateY(-1px) !important;
}

[data-md-color-scheme="slate"] .md-post--excerpt:hover::before,
[data-md-color-scheme="dracula"] .md-post--excerpt:hover::before {
  filter: none !important;
  opacity: 0.95 !important;
  transform: none !important;
}

[data-md-color-scheme="slate"] .md-post__meta,
[data-md-color-scheme="dracula"] .md-post__meta {
  color: rgba(219, 229, 236, 0.58) !important;
  letter-spacing: 0 !important;
}

[data-md-color-scheme="slate"] .md-post__content h2,
[data-md-color-scheme="dracula"] .md-post__content h2 {
  margin: 0.12rem 0 0.24rem !important;
}

[data-md-color-scheme="slate"] .md-post__content h2 a,
[data-md-color-scheme="dracula"] .md-post__content h2 a {
  color: rgb(226, 251, 255) !important;
  font-size: 1.22rem;
  font-weight: 760;
  letter-spacing: 0;
  text-decoration-color: rgba(114, 227, 253, 0.58) !important;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

[data-md-color-scheme="slate"] .md-post__content h2 a:hover,
[data-md-color-scheme="dracula"] .md-post__content h2 a:hover {
  color: #72e3fd !important;
}

[data-md-color-scheme="slate"] .md-post__action,
[data-md-color-scheme="dracula"] .md-post__action {
  margin-top: auto;
}

[data-md-color-scheme="slate"] .md-post__action a,
[data-md-color-scheme="dracula"] .md-post__action a {
  color: #72e3fd !important;
  font-size: 0.64rem;
  letter-spacing: 0 !important;
  text-decoration-color: rgba(114, 227, 253, 0.62) !important;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.16em;
}

/* ==========================================================================
   33) LaTeX（歷史設定：漸層版本；後面會被透明版覆蓋）
   - 這些片段保留不刪除
   ========================================================================== */

/* LaTeX 外層容器（Material 常見：arithmatex）改成 .i 同款漸層藍 */
.md-typeset div.arithmatex {
  background: linear-gradient(90deg, rgba(122, 211, 255, 0.295), rgba(122, 211, 255, 0)) !important;
}

/* 內層（KaTeX/MathJax）背景清掉，避免外層漸層被灰底包一圈 */
.md-typeset div.arithmatex>.katex-display,
.md-typeset div.arithmatex>mjx-container[display="true"] {
  background: transparent !important;
}

.md-typeset .arithmatex {
  background: linear-gradient(90deg, rgba(122, 211, 255, 0.5), rgba(122, 211, 255, 0)) !important;
}

/* ==========================================================================
   34) Mobile drawer + blog index：窄版可讀性 Hotfix
   - 抽屜標題列：logo 與文字分開排，不再互相覆蓋
   - 抽屜連結：手機版改成左色條，避免四角線段壓到文字
   - Blog 首頁：窄版固定單欄，避免首頁標題被卡片裝飾擠壓
   ========================================================================== */
@media (max-width: 59.999em) {
  :root {
    --peicd-sel-corner: 7px;
  }

  .md-sidebar--primary .md-nav--secondary {
    display: none !important;
  }

  .md-sidebar--primary .md-sidebar__scrollwrap,
  .md-sidebar--secondary .md-sidebar__scrollwrap {
    overflow-x: hidden !important;
  }

  .md-sidebar--primary .md-nav__title[for] {
    display: flex !important;
    align-items: center !important;
    gap: 0.75rem !important;
    min-height: 4.25rem !important;
    padding: 0.9rem 1rem !important;
    background: rgb(0, 0, 0) !important;
    color: var(--md-primary-fg-color) !important;
    line-height: 1.35 !important;
    white-space: normal !important;
    overflow-wrap: anywhere !important;
    word-break: break-word !important;
  }

  .md-sidebar--primary .md-nav__title[for] .md-nav__button.md-logo {
    position: static !important;
    inset: auto !important;
    width: auto !important;
    height: auto !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    flex: 0 0 auto !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .md-sidebar--primary .md-nav__title[for] .md-nav__button.md-logo img {
    display: block !important;
    width: 2.3rem !important;
    height: 2.3rem !important;
    object-fit: cover !important;
  }

  .md-sidebar--primary .md-nav__title[for] .md-ellipsis,
  .md-sidebar--primary .md-nav__title[for]>span:last-child {
    margin-left: 0 !important;
  }

  .md-sidebar--primary .md-nav__list,
  .md-sidebar--secondary .md-nav__list,
  .md-sidebar--primary .md-nav__item,
  .md-sidebar--secondary .md-nav__item,
  .md-sidebar--primary .md-nav__link,
  .md-sidebar--secondary .md-nav__link {
    min-width: 0 !important;
  }

  .md-sidebar--primary .md-nav__link .md-ellipsis,
  .md-sidebar--secondary .md-nav__link .md-ellipsis {
    white-space: normal !important;
    overflow-wrap: anywhere !important;
    word-break: break-word !important;
  }

  .md-sidebar--primary .md-nav__link.md-nav__container,
  .md-sidebar--secondary .md-nav__link.md-nav__container,
  .md-sidebar--primary label.md-nav__link,
  .md-sidebar--secondary label.md-nav__link {
    display: flex !important;
    align-items: flex-start !important;
    justify-content: space-between !important;
    gap: 0.75rem !important;
    min-height: 2.75rem !important;
    padding: 0.6rem 0.9rem !important;
    line-height: 1.4 !important;
    white-space: normal !important;
    overflow-wrap: anywhere !important;
    word-break: break-word !important;
  }

  .md-sidebar--primary .md-nav__link:not(.md-nav__container),
  .md-sidebar--secondary .md-nav__link:not(.md-nav__container) {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    gap: 0.75rem !important;
    min-height: 2.75rem !important;
    padding: 0.6rem 0.9rem !important;
    line-height: 1.4 !important;
    white-space: normal !important;
    overflow-wrap: anywhere !important;
    word-break: break-word !important;
    background: none !important;
    background-image: none !important;
    box-shadow: none !important;
    border-inline-start: 2px solid transparent !important;
  }

  .md-sidebar--primary .md-nav__link:not(.md-nav__container):hover,
  .md-sidebar--secondary .md-nav__link:not(.md-nav__container):hover {
    color: var(--peicd-nav-text) !important;
    background: rgba(80, 214, 255, 0.08) !important;
    background-image: none !important;
    box-shadow: none !important;
    border-inline-start-color: var(--peicd-nav-hover-corner) !important;
  }

  .md-sidebar--primary .md-nav__link--active:not(.md-nav__container),
  .md-sidebar--secondary .md-nav__link--active:not(.md-nav__container),
  .md-sidebar--primary .md-nav__item--active>.md-nav__link:not(.md-nav__container),
  .md-sidebar--secondary .md-nav__item--active>.md-nav__link:not(.md-nav__container) {
    color: var(--peicd-nav-text) !important;
    background: rgba(80, 214, 255, 0.12) !important;
    background-image: none !important;
    box-shadow: none !important;
    border-inline-start-color: var(--peicd-nav-active-corner) !important;
  }

  .md-sidebar--primary .md-nav__link--active::before,
  .md-sidebar--secondary .md-nav__link--active::before,
  .md-sidebar--primary .md-nav__item--active>.md-nav__link::before,
  .md-sidebar--secondary .md-nav__item--active>.md-nav__link::before,
  .md-sidebar--primary .md-nav__link--active::after,
  .md-sidebar--secondary .md-nav__link--active::after,
  .md-sidebar--primary .md-nav__item--active>.md-nav__link::after,
  .md-sidebar--secondary .md-nav__item--active>.md-nav__link::after {
    content: none !important;
  }
}

@media (max-width: 60em) {
  @supports selector(:has(*)) {
    .md-content__inner:has(> article.md-post--excerpt) {
      grid-template-columns: minmax(0, 1fr) !important;
      gap: 1rem !important;
    }

    .md-content__inner:has(> article.md-post--excerpt)>header:first-child {
      position: relative !important;
      z-index: 1 !important;
      margin-bottom: 0.75rem !important;
    }
  }

  .md-post--excerpt,
  [data-md-color-scheme="default"] .md-post--excerpt,
  [data-md-color-scheme="light"] .md-post--excerpt {
    padding: 1rem 1.1rem !important;
  }
}

/* ==========================================================================
   35) LaTeX（arithmatex / KaTeX / MathJax）
   - 需求：不要漸層
   - 需求：文字中的（inline）latex 不要背景、不加 padding
   ========================================================================== */

/* inline：完全透明、不留底、不留框、不加 padding */
.md-typeset span.arithmatex {
  background: transparent !important;
  border: 0 !important;
  padding: 0 !important;
  margin: 0 !important;
  box-shadow: none !important;
}

/* block：同樣不要背景（保留預設排版間距） */
.md-typeset div.arithmatex,
.md-typeset .arithmatex {
  background: transparent !important;
  border: 0 !important;
  box-shadow: none !important;
}

/* 內層（KaTeX/MathJax）背景清掉，避免被任何主題包灰底 */
.md-typeset div.arithmatex>.katex-display,
.md-typeset div.arithmatex>mjx-container[display="true"] {
  background: transparent !important;
}

/* 若你有額外把 arithmatex 當成 inline-code 在處理，這裡也保險清掉 */
.md-typeset .arithmatex code,
.md-typeset .arithmatex pre {
  background: transparent !important;
  border: 0 !important;
  padding: 0 !important;
  box-shadow: none !important;
}

/* ==========================================================================
   36) Secondary TOC：重構版桌機卡片 + 窄版右側面板
   ========================================================================== */

.md-typeset :is(h1, h2, h3, h4, h5, h6) {
  scroll-margin-top: calc(var(--md-header-height, 2.8rem) + 0.95rem);
}

@media screen and (min-width: 76.25em) {
  .md-main__inner.md-grid {
    max-width: var(--peicd-main-layout-max-width);
  }

  .md-sidebar--secondary.peicd-toc-sidebar {
    width: var(--peicd-secondary-sidebar-width);
  }

  .md-sidebar--secondary.peicd-toc-sidebar .md-sidebar__inner {
    width: var(--peicd-secondary-sidebar-width);
  }
}

.md-sidebar--secondary.peicd-toc-sidebar {
  --peicd-toc-card-bg: linear-gradient(180deg, rgba(252, 254, 255, 0.995) 0%, rgba(245, 250, 253, 0.99) 100%);
  --peicd-toc-card-border: rgba(66, 147, 180, 0.14);
  --peicd-toc-card-shadow: 0 1rem 2.4rem rgba(7, 20, 30, 0.14);
  --peicd-toc-head-bg: linear-gradient(180deg, rgba(252, 254, 255, 0.998) 0%, rgba(249, 252, 254, 0.985) 78%, rgba(249, 252, 254, 0.94) 100%);
  --peicd-toc-track: rgba(41, 104, 130, 0.16);
  --peicd-toc-track-strong: rgba(41, 104, 130, 0.22);
  --peicd-toc-text-soft: rgba(26, 53, 68, 0.76);
  --peicd-toc-text-strong: rgba(11, 35, 48, 0.94);
  --peicd-toc-surface-bg: rgba(255, 255, 255, 0.88);
  --peicd-toc-surface-bg-strong: rgba(255, 255, 255, 0.92);
}

.md-sidebar--secondary.peicd-toc-sidebar .md-sidebar__inner {
  background: var(--peicd-toc-card-bg) !important;
  border: 1px solid var(--peicd-toc-card-border);
  border-radius: 0.3rem;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  box-shadow: var(--peicd-toc-card-shadow);
  overflow: visible;
}

.md-sidebar--secondary.peicd-toc-sidebar .md-sidebar__scrollwrap {
  background: transparent !important;
  overflow-x: hidden !important;
  overscroll-behavior: contain;
  padding: 0.65rem 0.72rem 0.95rem !important;
  scroll-padding-top: 7.8rem;
}

.md-sidebar--secondary.peicd-toc-sidebar .md-sidebar__scrollwrap::-webkit-scrollbar {
  width: 0.42rem;
}

.md-sidebar--secondary.peicd-toc-sidebar .md-sidebar__scrollwrap::-webkit-scrollbar-thumb {
  background: rgba(114, 227, 253, 0.22);
  border-radius: 999px;
}

.md-sidebar--secondary.peicd-toc-sidebar .md-sidebar__scrollwrap::-webkit-scrollbar-track {
  background: transparent;
}

.md-sidebar--secondary.peicd-toc-sidebar .md-nav--secondary {
  background: transparent !important;
  padding: 0;
}

.md-sidebar--secondary.peicd-toc-sidebar .md-nav,
.md-sidebar--secondary.peicd-toc-sidebar .md-nav__list,
.md-sidebar--secondary.peicd-toc-sidebar .md-nav__item {
  background: transparent !important;
}

.md-sidebar--secondary.peicd-toc-sidebar .md-nav__title,
.md-sidebar--secondary.peicd-toc-sidebar .md-nav__title[for] {
  background: transparent !important;
  border: 0 !important;
  box-shadow: none !important;
  color: var(--peicd-toc-text-strong) !important;
  font-size: 0.92rem !important;
  font-weight: 800 !important;
  letter-spacing: 0.04em !important;
  line-height: 1.2 !important;
  margin: 0 !important;
  min-height: 0 !important;
  padding: 0 !important;
  text-transform: none !important;
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-title {
  display: block;
  flex: 1 1 auto;
  line-height: 1.3 !important;
  min-width: 0;
  overflow: hidden;
  padding-block: 0.08rem 0.04rem !important;
  padding-inline-end: 0.6rem !important;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.md-sidebar--secondary.peicd-toc-sidebar .md-nav__title::before,
.md-sidebar--secondary.peicd-toc-sidebar .md-nav__title::after,
.md-sidebar--secondary.peicd-toc-sidebar .md-nav__title[for]::before,
.md-sidebar--secondary.peicd-toc-sidebar .md-nav__title[for]::after {
  content: none !important;
  display: none !important;
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-head {
  position: sticky;
  top: 0;
  z-index: 12;
  display: grid;
  gap: 0.58rem;
  margin: 0 0 0.62rem;
  padding: 0.32rem 0 0.88rem;
  background: var(--peicd-toc-head-bg);
  box-shadow: 0 0.8rem 0.95rem -0.9rem rgba(14, 44, 61, 0.22);
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-head__row {
  align-items: center;
  display: flex;
  gap: 0.75rem;
  justify-content: space-between;
  min-width: 0;
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-title[hidden] {
  display: none !important;
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-close {
  display: none;
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-toolbar {
  display: grid;
  gap: 0.24rem;
  grid-template-columns: repeat(4, minmax(1.42rem, 0.72fr)) minmax(2.86rem, 1.26fr);
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-toolbar__group {
  display: contents;
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control {
  appearance: none;
  background: var(--peicd-toc-surface-bg);
  background-image: none;
  border: 0 !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  color: var(--peicd-toc-text-soft);
  cursor: pointer;
  font: inherit;
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1;
  min-height: 1.82rem;
  min-width: 0;
  overflow: hidden;
  padding: 0.36rem 0.18rem;
  position: relative;
  text-align: center;
  transition: box-shadow 140ms ease, color 140ms ease, background-image 140ms ease !important;
  white-space: nowrap;
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control--danger {
  min-width: 2.86rem;
  padding-inline: 0.22rem;
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control:hover,
.md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control:focus-visible {
  background: var(--peicd-toc-surface-bg);
  box-shadow: 0 0 0.9rem var(--peicd-nav-hover-glow) !important;
  color: var(--peicd-nav-text) !important;
  outline: none;
  background-image:
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0) !important;
  background-repeat: no-repeat !important;
  background-position:
    left top, left top,
    right top, right top,
    left bottom, left bottom,
    right bottom, right bottom !important;
  background-size:
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner) !important;
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control[aria-pressed="true"],
.md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control--active {
  background: var(--peicd-toc-surface-bg-strong);
  box-shadow: 0 0 1.1rem var(--peicd-nav-active-glow) !important;
  color: var(--peicd-nav-text) !important;
  background-image:
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0) !important;
  background-repeat: no-repeat !important;
  background-position:
    left top, left top,
    right top, right top,
    left bottom, left bottom,
    right bottom, right bottom !important;
  background-size:
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner) !important;
}

.md-sidebar--secondary.peicd-toc-sidebar .md-nav__list,
.md-sidebar--secondary.peicd-toc-sidebar .md-nav__item,
.md-sidebar--secondary.peicd-toc-sidebar .md-nav__link {
  min-width: 0 !important;
}

.md-sidebar--secondary.peicd-toc-sidebar .md-nav__link .md-ellipsis {
  color: inherit !important;
  display: block;
  overflow-wrap: anywhere;
  white-space: normal !important;
  word-break: break-word;
}

.md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] > .md-nav__list {
  border-inline-start: 1px solid var(--peicd-toc-track-strong);
  margin: 0 0 0 0.18rem;
  padding: 0 0 0 0.72rem;
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-danger-list {
  border-inline-start: 1px solid rgba(255, 87, 87, 0.26);
  display: none;
  margin: 0 0 0 0.18rem;
  padding: 0 0 0 0.72rem;
}

.md-sidebar--secondary.peicd-toc-sidebar.peicd-toc-danger-mode [data-md-component="toc"] > .md-nav__list:not(.peicd-danger-list) {
  display: none !important;
}

.md-sidebar--secondary.peicd-toc-sidebar.peicd-toc-danger-mode [data-md-component="toc"] > li.md-nav__item:not(.peicd-danger-item):not(.peicd-danger-empty) {
  display: none !important;
}

.md-sidebar--secondary.peicd-toc-sidebar.peicd-toc-danger-mode [data-md-component="toc"] > .peicd-danger-list {
  display: block !important;
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-danger-item {
  margin: 0;
  padding: 0;
}

.md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .peicd-danger-link {
  display: grid;
  gap: 0.16rem;
  padding-block: 0.56rem;
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-danger-link__top {
  align-items: center;
  display: flex;
  gap: 0.34rem;
  min-width: 0;
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-danger-badge {
  border: 1px solid rgba(255, 87, 87, 0.34);
  color: rgba(255, 138, 138, 0.92);
  flex: 0 0 auto;
  font-size: 0.48rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  line-height: 1;
  padding: 0.14rem 0.22rem;
  text-transform: uppercase;
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-danger-meta,
.md-sidebar--secondary.peicd-toc-sidebar .peicd-danger-current-label {
  font-size: 0.54rem;
  font-weight: 700;
  line-height: 1.2;
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-danger-meta {
  color: var(--peicd-toc-text-soft);
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-danger-current-label {
  color: var(--peicd-nav-text);
}

.md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .peicd-danger-link.peicd-toc-link--current .peicd-danger-current-label {
  display: inline-flex;
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-danger-empty {
  border: 1px solid var(--peicd-toc-track);
  color: var(--peicd-toc-text-soft);
  font-size: 0.62rem;
  font-weight: 700;
  line-height: 1.45;
  margin: 0.08rem 0 0;
  padding: 0.72rem 0.76rem;
}

.md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .md-nav__list .md-nav__list {
  border: 0;
  margin: 0;
  padding: 0;
}

.md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .md-nav__item {
  position: relative;
}

.md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .md-nav__link {
  background: var(--peicd-toc-surface-bg) !important;
  background-image: none !important;
  border: 0 !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  color: var(--peicd-toc-text-soft) !important;
  display: block;
  line-height: 1.34;
  margin: 0.08rem 0;
  opacity: 1 !important;
  padding: 0.52rem 0.76rem;
  position: relative;
  transition: box-shadow 140ms ease, color 140ms ease, background-image 140ms ease !important;
}

.md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .md-nav__link::before,
.md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .md-nav__link::after,
.md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .md-nav__item--active > .md-nav__link::before,
.md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .md-nav__item--active > .md-nav__link::after {
  content: none !important;
  display: none !important;
}

.md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .md-nav__item > .md-nav__link:hover {
  background: var(--peicd-toc-surface-bg) !important;
  box-shadow: 0 0 0.9rem var(--peicd-nav-hover-glow) !important;
  color: var(--peicd-nav-text) !important;
  background-image:
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0) !important;
  background-repeat: no-repeat !important;
  background-position:
    left top, left top,
    right top, right top,
    left bottom, left bottom,
    right bottom, right bottom !important;
  background-size:
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner) !important;
}

.md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .md-nav__item--active > .md-nav__link:not(.peicd-toc-link--current):not(.peicd-toc-link--proxy-current),
.md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .md-nav__link--active:not(.peicd-toc-link--current):not(.peicd-toc-link--proxy-current) {
  background: var(--peicd-toc-surface-bg) !important;
  box-shadow: none !important;
  color: var(--peicd-toc-text-soft) !important;
  font-weight: 500 !important;
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-item--nested {
  align-items: start;
  column-gap: 0.35rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-item--nested > .md-nav__link {
  grid-column: 1;
  padding-inline-end: 0.35rem !important;
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-toggle {
  appearance: none;
  align-items: center;
  background: var(--peicd-toc-surface-bg);
  border: 0 !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  color: var(--peicd-toc-text-soft);
  cursor: pointer;
  display: inline-flex;
  height: 1.8rem;
  justify-content: center;
  margin-top: 0.04rem;
  padding: 0;
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
  width: 1.8rem;
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-toggle:hover {
  background: var(--peicd-toc-surface-bg);
  box-shadow: 0 0 0.7rem var(--peicd-nav-hover-glow) !important;
  color: var(--peicd-nav-text);
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-toggle__icon {
  border-bottom: 2px solid currentColor;
  border-right: 2px solid currentColor;
  display: block;
  height: 0.54rem;
  transform: rotate(45deg);
  transition: transform 0.18s ease;
  width: 0.54rem;
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-item--nested.peicd-toc-item--collapsed > .peicd-toc-toggle .peicd-toc-toggle__icon {
  transform: rotate(-45deg);
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-item--nested > nav.md-nav {
  border-inline-start: 1px dashed var(--peicd-toc-track);
  grid-column: 1 / -1;
  margin: 0.08rem 0 0.22rem 0.34rem;
  max-height: 120rem;
  opacity: 1;
  overflow: hidden;
  padding-inline-start: 0.64rem;
  transition: max-height 0.24s ease, opacity 0.18s ease, margin 0.18s ease;
}

.md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-item--nested.peicd-toc-item--collapsed > nav.md-nav {
  margin: 0 0 0 0.34rem;
  max-height: 0;
  opacity: 0;
  pointer-events: none;
}

.md-sidebar--secondary.peicd-toc-sidebar.peicd-toc-syncing .peicd-toc-item--nested > nav.md-nav {
  transition: none !important;
}

.md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .peicd-toc-item--current-path > .md-nav__link:not(.peicd-toc-link--current):not(.peicd-toc-link--proxy-current) {
  color: var(--peicd-toc-text-strong) !important;
}

.md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .peicd-toc-item--current > .md-nav__link {
  font-weight: 700 !important;
}

.md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .peicd-toc-link--current {
  background: var(--peicd-toc-surface-bg-strong) !important;
  box-shadow: 0 0 1.1rem var(--peicd-nav-active-glow) !important;
  color: var(--peicd-nav-text) !important;
  font-weight: 700 !important;
  background-image:
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0),
    linear-gradient(var(--peicd-nav-active-corner) 0 0) !important;
  background-repeat: no-repeat !important;
  background-position:
    left top, left top,
    right top, right top,
    left bottom, left bottom,
    right bottom, right bottom !important;
  background-size:
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner) !important;
}

.md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .peicd-toc-link--proxy-current {
  background: var(--peicd-toc-surface-bg-strong) !important;
  box-shadow: 0 0 0.8rem var(--peicd-nav-hover-glow) !important;
  color: var(--peicd-nav-text) !important;
  background-image:
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0),
    linear-gradient(var(--peicd-nav-hover-corner) 0 0) !important;
  background-repeat: no-repeat !important;
  background-position:
    left top, left top,
    right top, right top,
    left bottom, left bottom,
    right bottom, right bottom !important;
  background-size:
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner),
    var(--peicd-sel-corner) var(--peicd-sel-line),
    var(--peicd-sel-line) var(--peicd-sel-corner) !important;
}

[data-md-color-scheme="default"] .md-sidebar--secondary.peicd-toc-sidebar,
[data-md-color-scheme="light"] .md-sidebar--secondary.peicd-toc-sidebar {
  --peicd-toc-card-bg: linear-gradient(180deg, rgba(252, 254, 255, 0.995) 0%, rgba(245, 250, 253, 0.99) 100%);
  --peicd-toc-card-border: rgba(66, 147, 180, 0.14);
  --peicd-toc-card-shadow: 0 1rem 2.4rem rgba(7, 20, 30, 0.14);
  --peicd-toc-head-bg: linear-gradient(180deg, rgba(252, 254, 255, 0.998) 0%, rgba(249, 252, 254, 0.985) 78%, rgba(249, 252, 254, 0.94) 100%);
  --peicd-toc-track: rgba(41, 104, 130, 0.16);
  --peicd-toc-track-strong: rgba(41, 104, 130, 0.22);
  --peicd-toc-text-soft: rgba(26, 53, 68, 0.76);
  --peicd-toc-text-strong: rgba(11, 35, 48, 0.94);
}

[data-md-color-scheme="default"] .md-sidebar--secondary.peicd-toc-sidebar .md-sidebar__inner,
[data-md-color-scheme="light"] .md-sidebar--secondary.peicd-toc-sidebar .md-sidebar__inner {
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

[data-md-color-scheme="default"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control,
[data-md-color-scheme="light"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control {
  background: rgba(255, 255, 255, 0.9);
  color: var(--peicd-toc-text-soft);
}

[data-md-color-scheme="default"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control[aria-pressed="true"],
[data-md-color-scheme="light"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control[aria-pressed="true"] {
  background-color: rgba(255, 255, 255, 0.94);
  color: var(--peicd-nav-text);
}

[data-md-color-scheme="default"] .md-sidebar--secondary.peicd-toc-sidebar .md-sidebar__scrollwrap::-webkit-scrollbar-thumb,
[data-md-color-scheme="light"] .md-sidebar--secondary.peicd-toc-sidebar .md-sidebar__scrollwrap::-webkit-scrollbar-thumb {
  background: rgba(19, 73, 97, 0.2);
}

[data-md-color-scheme="default"] .md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .md-nav__item > .md-nav__link:hover,
[data-md-color-scheme="light"] .md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .md-nav__item > .md-nav__link:hover {
  background-color: rgba(255, 255, 255, 0.9) !important;
}

[data-md-color-scheme="default"] .md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .peicd-toc-link--current,
[data-md-color-scheme="light"] .md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .peicd-toc-link--current {
  background-color: rgba(255, 255, 255, 0.94) !important;
  box-shadow: 0 0 1.1rem var(--peicd-nav-active-glow) !important;
}

[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar {
  --peicd-toc-card-bg: #000000;
  --peicd-toc-card-border: rgba(114, 227, 253, 0.16);
  --peicd-toc-card-shadow: 0 1rem 2.4rem rgba(0, 0, 0, 0.42);
  --peicd-toc-head-bg: #000000;
  --peicd-toc-track: rgba(114, 227, 253, 0.12);
  --peicd-toc-track-strong: rgba(114, 227, 253, 0.18);
  --peicd-toc-text-soft: rgba(219, 229, 236, 0.76);
  --peicd-toc-text-strong: rgba(235, 242, 247, 0.96);
  --peicd-toc-surface-bg: #000000;
  --peicd-toc-surface-bg-strong: #050505;
}

[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar,
[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar .md-sidebar__inner,
[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar .md-sidebar__scrollwrap,
[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar .md-nav--secondary,
[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar .md-nav,
[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar .md-nav__list,
[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar .md-nav__item,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar .md-sidebar__inner,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar .md-sidebar__scrollwrap,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar .md-nav--secondary,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar .md-nav,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar .md-nav__list,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar .md-nav__item {
  background: #000000 !important;
  background-color: #000000 !important;
}

[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar .md-sidebar__inner,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar .md-sidebar__inner {
  background: var(--peicd-toc-card-bg) !important;
  border-color: var(--peicd-toc-card-border) !important;
  box-shadow: var(--peicd-toc-card-shadow) !important;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-head,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-head {
  background: var(--peicd-toc-head-bg) !important;
}

[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control,
[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-toggle,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-toggle,
[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-close,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-close,
[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .md-nav__link,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .md-nav__link {
  background: var(--peicd-toc-surface-bg) !important;
  color: var(--peicd-toc-text-soft) !important;
}

[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control[aria-pressed="true"],
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control[aria-pressed="true"],
[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control--active,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control--active,
[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .peicd-toc-link--current,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .peicd-toc-link--current,
[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .peicd-toc-link--proxy-current,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .peicd-toc-link--proxy-current {
  background: var(--peicd-toc-surface-bg-strong) !important;
  color: var(--peicd-nav-text) !important;
}

[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control:hover,
[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control:focus-visible,
[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control[aria-pressed="true"],
[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control--active,
[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-toggle:hover,
[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-close:hover,
[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-close:focus-visible,
[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .md-nav__item > .md-nav__link:hover,
[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .peicd-toc-link--current,
[data-md-color-scheme="slate"] .md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .peicd-toc-link--proxy-current,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control:hover,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control:focus-visible,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control[aria-pressed="true"],
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control--active,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-toggle:hover,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-close:hover,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-close:focus-visible,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .md-nav__item > .md-nav__link:hover,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .peicd-toc-link--current,
[data-md-color-scheme="dracula"] .md-sidebar--secondary.peicd-toc-sidebar [data-md-component="toc"] .peicd-toc-link--proxy-current {
  box-shadow: 0 0 0 1px rgba(114, 227, 253, 0.18) inset !important;
}

@media (max-width: 76.249em) {
  .md-sidebar--primary .md-nav--secondary {
    display: none !important;
  }

  .md-sidebar--primary label.md-nav__link[for="__toc"] {
    display: none !important;
  }

  .md-sidebar--primary .md-sidebar__scrollwrap {
    overflow-x: hidden !important;
  }

  .md-sidebar--primary .md-nav__title[for] {
    display: flex !important;
    align-items: center !important;
    gap: 0.75rem !important;
    min-height: 4.25rem !important;
    padding: 0.9rem 1rem !important;
    background: rgb(0, 0, 0) !important;
    color: var(--md-primary-fg-color) !important;
    line-height: 1.35 !important;
    white-space: normal !important;
    overflow-wrap: anywhere !important;
    word-break: break-word !important;
  }

  .md-sidebar--primary .md-nav__title[for] .md-nav__button.md-logo {
    position: static !important;
    inset: auto !important;
    width: auto !important;
    height: auto !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    flex: 0 0 auto !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .md-sidebar--primary .md-nav__title[for] .md-nav__button.md-logo img {
    display: block !important;
    width: 2.3rem !important;
    height: 2.3rem !important;
    object-fit: cover !important;
  }

  .md-sidebar--primary .md-nav__title[for] .md-ellipsis,
  .md-sidebar--primary .md-nav__title[for] > span:last-child {
    margin-left: 0 !important;
  }

  .md-sidebar--primary .md-nav__list,
  .md-sidebar--primary .md-nav__item,
  .md-sidebar--primary .md-nav__link {
    min-width: 0 !important;
  }

  .md-sidebar--primary .md-nav__link .md-ellipsis {
    white-space: normal !important;
    overflow-wrap: anywhere !important;
    word-break: break-word !important;
  }

  .md-sidebar--primary .md-nav__link.md-nav__container,
  .md-sidebar--primary label.md-nav__link {
    display: flex !important;
    align-items: flex-start !important;
    justify-content: space-between !important;
    gap: 0.75rem !important;
    min-height: 2.75rem !important;
    padding: 0.6rem 0.9rem !important;
    line-height: 1.4 !important;
    white-space: normal !important;
    overflow-wrap: anywhere !important;
    word-break: break-word !important;
  }

  .md-sidebar--primary .md-nav__link:not(.md-nav__container) {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    gap: 0.75rem !important;
    min-height: 2.75rem !important;
    padding: 0.6rem 0.9rem !important;
    line-height: 1.4 !important;
    white-space: normal !important;
    overflow-wrap: anywhere !important;
    word-break: break-word !important;
    background: none !important;
    background-image: none !important;
    box-shadow: none !important;
    border-inline-start: 2px solid transparent !important;
  }

  .md-sidebar--primary .md-nav__link:not(.md-nav__container):hover {
    color: var(--peicd-nav-text) !important;
    background: rgba(80, 214, 255, 0.08) !important;
    background-image: none !important;
    box-shadow: none !important;
    border-inline-start-color: var(--peicd-nav-hover-corner) !important;
  }

  .md-sidebar--primary .md-nav__link--active:not(.md-nav__container),
  .md-sidebar--primary .md-nav__item--active > .md-nav__link:not(.md-nav__container) {
    color: var(--peicd-nav-text) !important;
    background: rgba(80, 214, 255, 0.12) !important;
    background-image: none !important;
    box-shadow: none !important;
    border-inline-start-color: var(--peicd-nav-active-corner) !important;
  }

  .md-sidebar--primary .md-nav__link--active::before,
  .md-sidebar--primary .md-nav__item--active > .md-nav__link::before,
  .md-sidebar--primary .md-nav__link--active::after,
  .md-sidebar--primary .md-nav__item--active > .md-nav__link::after {
    content: none !important;
  }
}

/* 深色側邊抽屜：Material 的中/窄版 drawer 由多層 nav surface 組成，
   需要一起壓成純黑，避免開啟側欄時露出藍灰底。 */
[data-md-color-scheme="slate"] .md-sidebar--primary,
[data-md-color-scheme="slate"] .md-sidebar--primary .md-sidebar__inner,
[data-md-color-scheme="slate"] .md-sidebar--primary .md-sidebar__scrollwrap,
[data-md-color-scheme="slate"] .md-sidebar--primary .md-nav,
[data-md-color-scheme="slate"] .md-sidebar--primary .md-nav__list,
[data-md-color-scheme="slate"] .md-sidebar--primary .md-nav__item,
[data-md-color-scheme="dracula"] .md-sidebar--primary,
[data-md-color-scheme="dracula"] .md-sidebar--primary .md-sidebar__inner,
[data-md-color-scheme="dracula"] .md-sidebar--primary .md-sidebar__scrollwrap,
[data-md-color-scheme="dracula"] .md-sidebar--primary .md-nav,
[data-md-color-scheme="dracula"] .md-sidebar--primary .md-nav__list,
[data-md-color-scheme="dracula"] .md-sidebar--primary .md-nav__item {
  background: #000000 !important;
  background-color: #000000 !important;
}

[data-md-color-scheme="slate"] .md-overlay,
[data-md-color-scheme="dracula"] .md-overlay {
  background: rgba(0, 0, 0, 0.78) !important;
}

@media (max-width: 76.249em) {
  [data-md-color-scheme="slate"] .md-sidebar--primary .md-sidebar__scrollwrap,
  [data-md-color-scheme="dracula"] .md-sidebar--primary .md-sidebar__scrollwrap {
    border-right: 1px solid rgba(114, 227, 253, 0.16) !important;
    box-shadow: none !important;
  }

  [data-md-color-scheme="slate"] [data-md-toggle="drawer"]:checked ~ .md-container .md-sidebar--primary .md-sidebar__scrollwrap,
  [data-md-color-scheme="dracula"] [data-md-toggle="drawer"]:checked ~ .md-container .md-sidebar--primary .md-sidebar__scrollwrap {
    box-shadow: 14px 0 30px rgba(0, 0, 0, 0.72) !important;
  }
}

.peicd-mobile-toc-toggle {
  appearance: none;
  background: none;
  border: 0;
  color: inherit;
  cursor: pointer;
  display: none;
  font: inherit;
  line-height: 0;
  margin: 0;
  transition: color 0.18s ease;
}

.peicd-mobile-toc-toggle svg {
  display: block;
  fill: currentColor;
  height: 1.2rem;
  width: 1.2rem;
}

.peicd-mobile-toc-toggle:hover {
  color: var(--md-accent-fg-color);
}

.peicd-mobile-toc-toggle[aria-expanded="true"] {
  color: var(--md-accent-fg-color);
}

.peicd-mobile-toc-toggle[hidden] {
  display: none !important;
}

.peicd-toc-scrim {
  background: rgba(4, 8, 15, 0.28);
  border: 0;
  cursor: pointer;
  inset: 0;
  padding: 0;
  position: fixed;
  z-index: 35;
}

.peicd-toc-scrim[hidden] {
  display: none !important;
}

[data-md-toggle="search"]:checked ~ .md-header .peicd-mobile-toc-toggle {
  display: none !important;
}

@media (max-width: 59.999em) {
  .md-header .peicd-mobile-toc-toggle:not([hidden]) {
    align-items: center;
    display: inline-flex;
    justify-content: center;
  }

  html.peicd-mobile-toc-open,
  html.peicd-mobile-toc-open body {
    overflow: hidden;
  }

  .md-sidebar--secondary.peicd-toc-sidebar {
    display: block !important;
    height: calc(100dvh - var(--md-header-height, 2.4rem) - 1.3rem - env(safe-area-inset-bottom)) !important;
    max-height: calc(100dvh - var(--md-header-height, 2.4rem) - 1.3rem - env(safe-area-inset-bottom)) !important;
    min-height: 0 !important;
    overflow: hidden !important;
    overflow-x: hidden !important;
    overflow-y: auto !important;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    position: fixed !important;
    top: calc(var(--md-header-height, 2.4rem) + 0.58rem) !important;
    right: max(0.72rem, env(safe-area-inset-right)) !important;
    bottom: max(0.72rem, env(safe-area-inset-bottom)) !important;
    left: auto !important;
    width: min(18.8rem, calc(100vw - 1.1rem)) !important;
    max-width: calc(100vw - 1.1rem) !important;
    margin: 0 !important;
    opacity: 0;
    padding: 0 !important;
    pointer-events: none;
    touch-action: pan-y;
    transform: translate3d(calc(100% + 1rem), 0, 0);
    transition: transform 0.24s ease, opacity 0.18s ease;
    z-index: 36;
  }

  .md-sidebar--secondary.peicd-toc-sidebar.peicd-mobile-toc-visible {
    opacity: 1;
    pointer-events: auto;
    transform: translate3d(0, 0, 0);
  }

  .md-sidebar--secondary.peicd-toc-sidebar .md-sidebar__inner {
    display: flex !important;
    flex-direction: column !important;
    height: 100% !important;
    max-height: none !important;
    min-height: 0 !important;
    overflow: hidden !important;
  }

  .md-sidebar--secondary.peicd-toc-sidebar .md-sidebar__scrollwrap {
    flex: 1 1 auto !important;
    height: auto !important;
    max-height: none !important;
    min-height: 0 !important;
    overflow: visible !important;
    -webkit-overflow-scrolling: touch;
    padding: 0.72rem 0.58rem 0.88rem !important;
    touch-action: pan-y !important;
  }

  .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-head {
    padding-bottom: 0.72rem;
  }

  .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-head__row--titleless {
    justify-content: flex-end;
  }

  .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-close {
    align-items: center;
    appearance: none;
    background: rgba(255, 255, 255, 0.9);
    background-image: none;
    border: 0 !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    color: var(--peicd-toc-text-soft);
    cursor: pointer;
    display: inline-flex;
    font-size: 1rem;
    height: 1.9rem;
    justify-content: center;
    line-height: 1;
    width: 1.9rem;
  }

  .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-close:hover,
  .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-close:focus-visible {
    box-shadow: 0 0 0.7rem var(--peicd-nav-hover-glow) !important;
    color: var(--peicd-nav-text) !important;
    outline: none;
    background-image:
      linear-gradient(var(--peicd-nav-hover-corner) 0 0),
      linear-gradient(var(--peicd-nav-hover-corner) 0 0),
      linear-gradient(var(--peicd-nav-hover-corner) 0 0),
      linear-gradient(var(--peicd-nav-hover-corner) 0 0),
      linear-gradient(var(--peicd-nav-hover-corner) 0 0),
      linear-gradient(var(--peicd-nav-hover-corner) 0 0),
      linear-gradient(var(--peicd-nav-hover-corner) 0 0),
      linear-gradient(var(--peicd-nav-hover-corner) 0 0) !important;
    background-repeat: no-repeat !important;
    background-position:
      left top, left top,
      right top, right top,
      left bottom, left bottom,
      right bottom, right bottom !important;
    background-size:
      var(--peicd-sel-corner) var(--peicd-sel-line),
      var(--peicd-sel-line) var(--peicd-sel-corner),
      var(--peicd-sel-corner) var(--peicd-sel-line),
      var(--peicd-sel-line) var(--peicd-sel-corner),
      var(--peicd-sel-corner) var(--peicd-sel-line),
      var(--peicd-sel-line) var(--peicd-sel-corner),
      var(--peicd-sel-corner) var(--peicd-sel-line),
      var(--peicd-sel-line) var(--peicd-sel-corner) !important;
  }

  .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-toolbar {
    gap: 0.22rem;
  }
}

@media (min-width: 60em) {
  .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-head {
    gap: 0 !important;
    margin-bottom: 0.5rem !important;
    min-height: 0 !important;
    padding-top: 0 !important;
    padding-bottom: 0.72rem !important;
  }

  .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-head__row--titleless {
    display: none;
  }
}

@media (max-width: 38em) {
  .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-toolbar {
    gap: 0.18rem;
    grid-template-columns: repeat(4, minmax(1.34rem, 0.7fr)) minmax(2.72rem, 1.28fr);
  }

  .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control {
    font-size: 0.54rem;
    min-height: 1.64rem;
    padding-inline: 0.12rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .md-sidebar--secondary.peicd-toc-sidebar .md-nav__link,
  .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-toggle,
  .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-control,
  .md-sidebar--secondary.peicd-toc-sidebar .peicd-toc-item--nested > nav.md-nav,
  .md-sidebar--secondary.peicd-toc-sidebar,
  .peicd-mobile-toc-toggle {
    transition: none !important;
  }
}
[data-md-color-scheme="default"] .peicd-toc-scrim,
[data-md-color-scheme="light"] .peicd-toc-scrim {
  background: rgba(19, 73, 97, 0.14);
}