:root {
  color-scheme: light;

  
  --bg: #f8f9fa;
  --surface: #ffffff;
  --surface-2: #f1f3f4;
  --fill: rgba(32, 33, 36, 0.06);
  --fill-2: rgba(32, 33, 36, 0.09);
  --ink: #202124;
  --ink-2: #3c4043;
  --ink-3: #5f6368;
  --ink-4: #80868b;
  --faint: #9aa0a6;

  
  --outline: #dadce0;
  --outline-soft: #e8eaed;

  
  --hue: 260;
  --cm: 1;

  
  --primary: oklch(0.55 calc(0.17 * var(--cm)) var(--hue));
  --primary-hover: oklch(0.47 calc(0.17 * var(--cm)) var(--hue));
  --primary-strong: oklch(0.42 calc(0.15 * var(--cm)) var(--hue));
  --primary-tint: oklch(0.955 calc(0.035 * var(--cm)) var(--hue));
  --primary-tint-2: oklch(0.9 calc(0.055 * var(--cm)) var(--hue));
  --on-primary: #ffffff;
  --success: #1e8e3e;
  --scrim: rgba(32, 33, 36, 0.4);
  --sel: oklch(0.9 calc(0.055 * var(--cm)) var(--hue));

  
  --elev-1: 0 1px 2px 0 rgba(60, 64, 67, 0.3), 0 1px 3px 1px rgba(60, 64, 67, 0.15);
  --elev-2: 0 1px 3px 0 rgba(60, 64, 67, 0.3), 0 4px 8px 3px rgba(60, 64, 67, 0.15);
  --elev-3: 0 4px 4px 0 rgba(60, 64, 67, 0.3), 0 8px 12px 6px rgba(60, 64, 67, 0.15);
  --shadow-sheet: -12px 0 36px rgba(60, 64, 67, 0.22);

  
  --font-ui: "Google Sans", "Roboto", "Noto Sans SC", -apple-system, BlinkMacSystemFont,
    "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-body: "Roboto", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "Roboto Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  
  --mh: 64px;
  --sb: 32px;
  --rail: 264px;
  --sheet-w: 480px;
  --r-s: 8px;
  --r-m: 12px;
  --r-l: 16px;
  --r-xl: 28px;
  --r-full: 999px;
  --ease: cubic-bezier(0.2, 0, 0, 1);

  --z-board: 1;
  --z-head: 70;
  --z-dim: 55;
  --z-detail: 75;
  --z-status: 66;
  --z-mask: 85;
  --z-dlg: 90;
}

:root[data-theme="dark"] {
  color-scheme: dark;

  --bg: #131314;
  --surface: #1e1f20;
  --surface-2: #282a2c;
  --fill: rgba(227, 227, 227, 0.07);
  --fill-2: rgba(227, 227, 227, 0.12);
  --ink: #e3e3e3;
  --ink-2: #c4c7c5;
  --ink-3: #9aa0a6;
  --ink-4: #84878a;
  --faint: #7c7f83;

  --outline: #444746;
  --outline-soft: #2d2f31;

  --primary: oklch(0.84 calc(0.11 * var(--cm)) var(--hue));
  --primary-hover: oklch(0.88 calc(0.1 * var(--cm)) var(--hue));
  --primary-strong: oklch(0.84 calc(0.11 * var(--cm)) var(--hue));
  --primary-tint: oklch(0.32 calc(0.05 * var(--cm)) var(--hue));
  --primary-tint-2: oklch(0.38 calc(0.07 * var(--cm)) var(--hue));
  --on-primary: oklch(0.25 calc(0.08 * var(--cm)) var(--hue));
  --success: #6dd58c;
  --scrim: rgba(0, 0, 0, 0.6);
  --sel: oklch(0.38 calc(0.07 * var(--cm)) var(--hue));

  --elev-1: 0 1px 2px 0 rgba(0, 0, 0, 0.5), 0 1px 3px 1px rgba(0, 0, 0, 0.35);
  --elev-2: 0 1px 3px 0 rgba(0, 0, 0, 0.5), 0 4px 8px 3px rgba(0, 0, 0, 0.35);
  --elev-3: 0 4px 4px 0 rgba(0, 0, 0, 0.5), 0 8px 12px 6px rgba(0, 0, 0, 0.45);
  --shadow-sheet: -12px 0 36px rgba(0, 0, 0, 0.55);
}



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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding-bottom: var(--sb);
  background: var(--bg);
  color: var(--ink-2);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color 0.25s ease, color 0.25s ease;
}

body.locked {
  overflow: hidden;
}

h1,
h2,
h3,
p,
dl,
dd,
dt,
ol,
ul,
figure {
  margin: 0;
  padding: 0;
}

ol,
ul {
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

a:visited {
  color: inherit;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

svg {
  display: block;
  fill: currentColor;
}

kbd {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  padding: 3px 6px;
  border: 1px solid var(--outline);
  border-radius: 4px;
  color: var(--ink-3);
  background: var(--surface);
  display: inline-block;
  min-width: 18px;
  text-align: center;
}

mark {
  background: transparent;
  color: inherit;
  font-weight: 700;
}

::selection {
  background: var(--sel);
  color: var(--ink);
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip {
  position: fixed;
  left: -999px;
  top: 8px;
  z-index: 99;
  padding: 10px 18px;
  background: var(--primary);
  color: var(--on-primary);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--r-s);
}
.skip:focus {
  left: 10px;
}


#toc,
#detail-inner,
#search-results,
.group-body {
  scrollbar-width: thin;
  scrollbar-color: var(--outline) transparent;
}
#toc::-webkit-scrollbar,
#detail-inner::-webkit-scrollbar,
#search-results::-webkit-scrollbar,
.group-body::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
#toc::-webkit-scrollbar-thumb,
#detail-inner::-webkit-scrollbar-thumb,
#search-results::-webkit-scrollbar-thumb,
.group-body::-webkit-scrollbar-thumb {
  background: var(--outline);
  border-radius: var(--r-full);
}
#toc::-webkit-scrollbar-track,
#detail-inner::-webkit-scrollbar-track,
#search-results::-webkit-scrollbar-track,
.group-body::-webkit-scrollbar-track {
  background: transparent;
}



#masthead {
  position: sticky;
  top: 0;
  z-index: var(--z-head);
  height: var(--mh);
  background: var(--bg);
  border-bottom: 1px solid var(--outline-soft);
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.mh {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 8px 0 16px;
  max-width: 1440px;
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  padding: 6px 8px 6px 0;
  border-radius: var(--r-s);
  color: var(--ink);
}

.brand-mark {
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  font-size: 19px;
  line-height: 1;
  border-radius: 50%;
  background: var(--fill);
}

.brand-txt {
  display: flex;
  flex-direction: column;
  gap: 1px;
  line-height: 1.15;
}

.brand-name {
  font-family: var(--font-ui);
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
}


.searchwrap {
  position: relative;
  flex: 1 1 auto;
  max-width: 560px;
  display: flex;
  align-items: center;
  height: 44px;
  background: var(--surface);
  border: 1px solid var(--outline);
  border-radius: var(--r-full);
  transition: box-shadow 0.15s ease, border-color 0.15s ease, background-color 0.25s ease;
}
.searchwrap:focus-within {
  border-color: transparent;
  box-shadow: var(--elev-1);
}

.search-ico {
  width: 20px;
  height: 20px;
  margin: 0 4px 0 14px;
  flex: 0 0 auto;
  color: var(--ink-4);
}

#search {
  flex: 1 1 auto;
  min-width: 0;
  height: 100%;
  border: 0;
  outline: 0;
  background: none;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--ink);
  padding: 0 10px;
}
#search::placeholder {
  color: var(--ink-4);
}

.search-kbd {
  margin-right: 14px;
  flex: 0 0 auto;
  border: 0;
  background: var(--fill);
  color: var(--ink-4);
}

.search-cancel {
  display: none;
}

#search-results {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  max-height: min(64vh, 540px);
  overflow: auto;
  background: var(--surface);
  border-radius: var(--r-m);
  box-shadow: var(--elev-2);
  padding: 8px 0;
  z-index: 6;
  display: none;
}

.sr-item {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  padding: 6px 16px;
  cursor: pointer;
  transition: background-color 0.12s ease;
}
.sr-item:hover,
.sr-item[aria-selected="true"] {
  background: var(--fill);
}

.sr-txt {
  flex: 1 1 auto;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sr-name {
  font-size: 14px;
  color: var(--ink);
}
.sr-alias {
  font-style: normal;
  font-size: 12px;
  color: var(--ink-3);
}

.sr-chap {
  flex: 0 0 auto;
  max-width: 40%;
  font-size: 12px;
  color: var(--ink-3);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sr-divider {
  padding: 10px 16px 4px;
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-4);
}

.sr-empty {
  padding: 14px 16px;
  font-size: 13px;
  color: var(--ink-3);
}


.mh-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 0 0 auto;
  margin-left: 8px;
}

.nav-btn {
  height: 40px;
  padding: 0 16px;
  border-radius: var(--r-full);
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-3);
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  transition: background-color 0.15s ease, color 0.15s ease;
}
.nav-btn:hover {
  background: var(--fill);
  color: var(--ink);
}

.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--ink-3);
  transition: background-color 0.15s ease, color 0.15s ease;
}
.icon-btn:hover {
  background: var(--fill);
  color: var(--ink);
}
.icon-btn svg {
  width: 22px;
  height: 22px;
}

.i-moon {
  display: none;
}
:root[data-theme="dark"] .i-moon {
  display: block;
}
:root[data-theme="dark"] .i-sun {
  display: none;
}

.menu-btn {
  display: none;
}


.mmenu {
  display: none;
}

.mm-item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  min-height: 48px;
  padding: 0 16px;
  border-radius: var(--r-s);
  font-size: 14px;
  color: var(--ink-2);
  text-align: left;
  transition: background-color 0.12s ease;
}
.mm-item:hover {
  background: var(--fill);
}

.mm-k {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-4);
}



#layout {
  display: grid;
  grid-template-columns: var(--rail) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
  max-width: 1288px;
  margin: 0 auto;
  padding: 0 24px;
}

#toc {
  position: sticky;
  top: calc(var(--mh) + 20px);
  max-height: calc(100vh - var(--mh) - 52px);
  overflow: auto;
  padding: 4px 0 16px;
  border-radius: var(--r-m);
}

.toc-head {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 20px 16px 12px;
}

.toc-k {
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
}

.toc-k2 {
  font-family: var(--font-ui);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-4);
}

.toc-n {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-4);
}

.toc-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.toc-item {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 38px;
  padding: 0 16px;
  border-radius: var(--r-full);
  font-size: 13.5px;
  color: var(--ink-2);
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}
.toc-item:hover {
  background: var(--fill);
  color: var(--ink);
}
.toc-item.on {
  background: var(--primary-tint);
  color: var(--primary-strong);
  font-weight: 500;
}

.toc-no {
  width: 20px;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-4);
}
.toc-item.on .toc-no {
  color: var(--primary);
}

.toc-name {
  flex: 1 1 auto;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.toc-n2 {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-4);
}

.toc-legend {
  display: flex;
  gap: 16px;
  padding: 14px 16px 4px;
  border-top: 1px solid var(--outline-soft);
  font-size: 12px;
  color: var(--ink-3);
}
.toc-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.lg {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1.5px solid var(--faint);
  display: inline-block;
}
.lg.on {
  background: var(--ink-3);
  border-color: var(--ink-3);
}

.toc-foot {
  padding: 12px 16px 0;
  font-size: 12px;
  line-height: 1.8;
  color: var(--ink-4);
}



#board {
  min-width: 0;
  padding-bottom: 24px;
}


.mast {
  max-width: 780px;
  padding: 44px 0 12px;
}

.mast-eyebrow {
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-4);
  margin-bottom: 10px;
}

.mast-title {
  font-family: var(--font-ui);
  font-size: 40px;
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.15;
  color: var(--ink);
}

.mast-desc {
  max-width: 680px;
  margin-top: 14px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-2);
}
.mast-desc b {
  color: var(--ink);
  font-weight: 500;
}
.deck-keys {
  display: inline;
}
.deck-touch {
  display: none;
}

.mast-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 44px;
  margin-top: 28px;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.stat b {
  font-family: var(--font-ui);
  font-size: 26px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.stat span {
  font-family: var(--font-ui);
  font-size: 12px;
  color: var(--ink-3);
}


.mast-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}

.mchip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 34px;
  padding: 0 14px;
  background: var(--surface);
  border: 1px solid var(--outline);
  border-radius: var(--r-full);
  font-size: 13px;
  color: var(--ink-2);
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.mchip:hover {
  background: var(--fill);
  color: var(--ink);
}

.mchip-no {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-4);
}
.mchip-name {
  white-space: nowrap;
}

.mast-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 26px;
}

.btn-filled {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 20px;
  background: var(--primary);
  color: var(--on-primary);
  border-radius: var(--r-full);
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 500;
  transition: background-color 0.15s ease, box-shadow 0.15s ease;
}
.btn-filled:hover {
  background: var(--primary-hover);
  box-shadow: var(--elev-1);
}
.btn-filled svg {
  width: 18px;
  height: 18px;
}

.link-quiet {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 12px;
  border-radius: var(--r-full);
  font-size: 13.5px;
  color: var(--ink-3);
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}
.link-quiet:hover {
  background: var(--fill);
  color: var(--ink);
}


.chapter {
  margin-top: 20px;
  scroll-margin-top: calc(var(--mh) + 16px);
}
@media (max-width: 980px) {
  .chapter {
    scroll-margin-top: calc(var(--mh) + 60px);
  }
}

.chapter-head {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 48px;
  padding: 26px 0 8px;
}

.ch-no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-4);
}

.ch-title {
  font-family: var(--font-ui);
  font-size: 21px;
  font-weight: 500;
  line-height: 1.3;
  color: var(--ink);
}

.ch-meta {
  font-size: 12.5px;
  color: var(--ink-4);
  margin-left: 2px;
}

.ch-toggle {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 36px;
  padding: 0 12px;
  border-radius: var(--r-full);
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-3);
  transition: background-color 0.15s ease;
}
.ch-toggle:hover {
  background: var(--fill);
}

.tg-ico {
  width: 18px;
  height: 18px;
  transition: transform 0.2s var(--ease);
}
.chapter.collapsed .tg-ico {
  transform: rotate(180deg);
}

.chapter-body {
  border-top: 1px solid var(--outline-soft);
}
.chapter.collapsed .chapter-body {
  display: none;
}


.ch-intro {
  max-width: 720px;
  margin: 16px 0 8px;
  padding: 16px 20px;
  background: var(--surface-2);
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--r-m) var(--r-m) 0;
  font-size: 13.5px;
  line-height: 2;
  color: var(--ink-2);
}
.ch-intro + .tree {
  margin-top: 16px;
}


.tree {
  padding: 8px 0 16px;
}
.tree .tree {
  margin-left: 16px;
  padding: 0 0 0 16px;
  border-left: 1px solid var(--outline-soft);
}

.row {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 46px;
  padding: 8px 16px;
  align-items: center;
  border-radius: var(--r-s);
  cursor: pointer;
  scroll-margin-top: calc(var(--mh) + 12px);
  transition: background-color 0.12s ease;
}
.row:hover {
  background: var(--fill);
}
.row.sel {
  background: var(--primary-tint);
}
.row:focus-visible {
  outline-offset: -2px;
}
.row .r-mark {
  display: none;
}

.r-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1 1 auto;
  min-width: 0;
  align-self: flex-start;
}

.r-name {
  flex: 0 1 auto;
  max-width: 100%;
  font-size: 14.5px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.row.no-desc .r-name {
  font-weight: 400;
  color: var(--ink-2);
}

.r-lead {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--ink-4);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.r-open {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  color: var(--faint);
  opacity: 0;
  transition: opacity 0.12s ease, color 0.12s ease;
}
.row:hover .r-open,
.row.sel .r-open,
.row:focus-visible .r-open {
  opacity: 1;
}
.row:hover .r-open {
  color: var(--ink-3);
}
.r-open svg {
  width: 20px;
  height: 20px;
}


.row.l0 {
  margin-top: 6px;
  border-top: 1px solid var(--outline-soft);
  min-height: 54px;
}
.tree > li:first-child > .row.l0 {
  margin-top: 0;
  border-top: 0;
}
.row.l0 .r-name {
  font-size: 16px;
}
.row.l1 .r-name {
  font-size: 14.5px;
  font-weight: 500;
}
.row.l2 .r-name,
.row.l3 .r-name {
  font-size: 13.5px;
  font-weight: 400;
  color: var(--ink-3);
}


.colophon {
  margin-top: 40px;
  border-top: 1px solid var(--outline-soft);
  padding: 20px 0 36px;
}

.colo-rows {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 28px;
}

.colo-row {
  display: flex;
  gap: 8px;
  font-size: 12.5px;
}
.colo-row dt {
  color: var(--ink-4);
}
.colo-row dd {
  color: var(--ink-2);
}

.colo-top {
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding: 0 12px;
  margin-top: 10px;
  border-radius: var(--r-full);
  font-size: 13px;
  color: var(--ink-3);
  transition: background-color 0.15s ease, color 0.15s ease;
}
.colo-top:hover {
  background: var(--fill);
  color: var(--ink);
}


#palette-btn .pp-dot {
  position: absolute;
  right: 7px;
  bottom: 7px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  border: 1.5px solid var(--bg);
  display: none;
}
#palette-btn.customized .pp-dot {
  display: block;
}


.palette-panel {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 300px;
  max-width: calc(100vw - 24px);
  max-height: calc(100dvh - 96px);
  overflow: auto;
  background: var(--surface);
  border-radius: var(--r-l);
  box-shadow: var(--elev-3);
  padding: 18px;
  z-index: 9;
  opacity: 0;
  transform: translateY(-6px) scale(0.98);
  transform-origin: top right;
  pointer-events: none;
  visibility: hidden;
  transition: opacity 0.16s ease, transform 0.16s var(--ease), visibility 0s linear 0.16s;
}
.palette-panel.show {
  opacity: 1;
  transform: none;
  pointer-events: auto;
  visibility: visible;
  transition: opacity 0.16s ease, transform 0.16s var(--ease);
}

.pp-head {
  display: flex;
  align-items: center;
  gap: 10px;
}

.pp-title {
  font-family: var(--font-ui);
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
}

.pp-reset {
  width: 30px;
  height: 30px;
  border-radius: var(--r-s);
  display: grid;
  place-items: center;
  color: var(--ink-3);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease, background-color 0.15s ease;
}
.pp-reset.show {
  opacity: 1;
  pointer-events: auto;
}
.pp-reset:hover {
  background: var(--fill);
  color: var(--ink);
}
.pp-reset svg {
  width: 15px;
  height: 15px;
}

.pp-row {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  margin: 2px 0 8px;
}

.pp-swatch {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: oklch(0.62 var(--pp-chroma, 0.14) var(--hue));
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.08);
}

.pp-val {
  min-width: 40px;
  height: 26px;
  padding: 0 8px;
  border-radius: var(--r-s);
  background: var(--surface-2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 500;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}


.pp-slider {
  -webkit-appearance: none;
  appearance: none;
  display: block;
  width: 100%;
  height: 24px;
  margin: 0;
  border-radius: 6px;
  background-image: linear-gradient(
    to right,
    oklch(0.75 0.12 0),
    oklch(0.75 0.12 30),
    oklch(0.75 0.12 60),
    oklch(0.75 0.12 90),
    oklch(0.75 0.12 120),
    oklch(0.75 0.12 150),
    oklch(0.75 0.12 180),
    oklch(0.75 0.12 210),
    oklch(0.75 0.12 240),
    oklch(0.75 0.12 270),
    oklch(0.75 0.12 300),
    oklch(0.75 0.12 330),
    oklch(0.75 0.12 360)
  );
  cursor: pointer;
}
.pp-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 10px;
  height: 18px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.75);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.35);
  cursor: grab;
}
.pp-slider::-moz-range-thumb {
  width: 10px;
  height: 18px;
  border: 0;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.75);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.35);
  cursor: grab;
}

.pp-label {
  margin: 14px 2px 8px;
  font-family: var(--font-ui);
  font-size: 12.5px;
  font-weight: 500;
  color: var(--ink-3);
}

.pp-styles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}

.pp-style {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 10px 4px 8px;
  border-radius: var(--r-m);
  color: var(--ink-3);
  font-family: var(--font-ui);
  font-size: 11.5px;
  transition: background-color 0.15s ease, color 0.15s ease;
}
.pp-style:hover {
  background: var(--fill);
  color: var(--ink);
}
.pp-style[aria-checked="true"] {
  background: var(--primary-tint);
  color: var(--primary-strong);
  font-weight: 500;
}

.pp-dots {
  display: flex;
  gap: 4px;
}
.pp-dots i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.12);
}

.pp-style-name {
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

@media (max-width: 700px) {
  .palette-panel {
    right: 8px;
  }
}



#dim {
  position: fixed;
  inset: 0;
  background: var(--scrim);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  z-index: var(--z-dim);
}
#dim.show {
  opacity: 1;
  pointer-events: auto;
}

#detail {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(var(--sheet-w), calc(100vw - 48px));
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border-left: 1px solid var(--outline-soft);
  box-shadow: var(--shadow-sheet);
  z-index: var(--z-detail);
  transform: translateX(calc(100% + 40px));
  visibility: hidden;
  transition: transform 0.28s var(--ease), visibility 0s linear 0.28s;
  will-change: transform;
}
#detail.show {
  transform: none;
  visibility: visible;
  transition: transform 0.28s var(--ease);
}

.d-top {
  display: none;
}

.d-close {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--ink-3);
  z-index: 2;
  transition: background-color 0.15s ease, color 0.15s ease;
}
.d-close:hover {
  background: var(--fill);
  color: var(--ink);
}
.d-close svg {
  width: 22px;
  height: 22px;
}

#detail-inner {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  padding: 26px 32px 44px;
  overscroll-behavior: contain;
}

.d-meta {
  font-family: var(--font-ui);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-4);
  padding-right: 48px;
  font-variant-numeric: tabular-nums;
}
.d-meta em {
  font-style: normal;
  color: var(--ink-3);
}

.d-title {
  margin-top: 10px;
  font-family: var(--font-ui);
  font-size: 26px;
  font-weight: 400;
  line-height: 1.25;
  color: var(--ink);
  word-break: break-word;
}

.d-aka {
  margin-top: 6px;
  font-size: 13px;
  color: var(--ink-3);
}
.d-aka b {
  font-family: var(--font-ui);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--ink-4);
}

.d-xref {
  margin-top: 12px;
  padding: 2px 0 2px 10px;
  border-left: 3px solid var(--outline);
  font-size: 12.5px;
  color: var(--ink-3);
}

.d-sec {
  margin-top: 30px;
}

.d-label {
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--outline-soft);
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-4);
}

.d-desc {
  font-size: 14.5px;
  line-height: 1.95;
  color: var(--ink-2);
}
.d-desc br {
  content: "";
  display: block;
  height: 0.4em;
}

.link-out {
  color: var(--primary);
  font-weight: 500;
  word-break: break-all;
}
.link-out:hover {
  text-decoration: underline;
}

.no-desc {
  border: 1px dashed var(--outline);
  border-radius: var(--r-m);
  padding: 26px 20px;
  text-align: center;
}
.nd-zh {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink-2);
}
.nd-hint {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  color: var(--ink-4);
}


.d-rel .rel {
  margin: 0 0 16px;
}
.d-rel .rel:last-child {
  margin-bottom: 0;
}
.rel dt {
  margin-bottom: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-2);
}
.rel dt i {
  font-style: normal;
  font-weight: 400;
  font-size: 11.5px;
  color: var(--ink-4);
  margin-left: 8px;
}
.rel dd {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 2px 14px;
  border: 1px solid var(--outline);
  border-radius: var(--r-s);
  font-size: 13px;
  color: var(--ink-2);
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}
.chip:hover {
  background: var(--fill);
  color: var(--ink);
}

.chip-off {
  border-color: var(--outline-soft);
  color: var(--faint);
  background: none;
  cursor: default;
}
.chip-off:hover {
  background: none;
  color: var(--faint);
}


.d-ex li {
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 4px 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--outline-soft);
}
.d-ex li:last-child {
  border-bottom: 0;
}

.ex-no {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-4);
  font-variant-numeric: tabular-nums;
}

.ex-t {
  flex: 1 1 200px;
  min-width: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-2);
}

.ex-act {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 0 0 auto;
}

.ex-play,
.ex-nm {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  height: 32px;
  padding: 0 10px;
  border-radius: var(--r-full);
  font-size: 12.5px;
  font-weight: 500;
  color: var(--primary);
  white-space: nowrap;
  transition: background-color 0.15s ease, color 0.15s ease;
}
.ex-play:hover,
.ex-nm:hover {
  background: var(--primary-tint);
}
.ex-play.on {
  background: var(--primary-tint);
  color: var(--primary-strong);
}

.ex-nm {
  color: var(--ink-3);
}
.ex-nm:hover {
  background: var(--fill);
  color: var(--ink);
}
.ex-nm i {
  font-style: normal;
  font-size: 11px;
  opacity: 0.7;
}

.ex-player {
  width: 100%;
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.ex-player iframe {
  width: 100%;
  max-width: 330px;
  height: 86px;
  border: 0;
  border-radius: var(--r-s);
  background: var(--surface-2);
}
.ex-player-note {
  font-size: 12px;
  color: var(--ink-4);
}
.ex-fallback {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 14px;
  border: 1px solid var(--outline);
  border-radius: var(--r-full);
  font-size: 13px;
  color: var(--ink-2);
}
.ex-fallback:hover {
  background: var(--fill);
}


.d-foot {
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--outline-soft);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.d-copy {
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding: 0 16px;
  border: 1px solid var(--outline);
  border-radius: var(--r-full);
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-2);
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.d-copy:hover {
  background: var(--fill);
}
.d-copy.done {
  color: var(--success);
  border-color: currentColor;
}

.d-nav {
  margin-left: auto;
  display: flex;
  gap: 4px;
}

.d-step {
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding: 0 14px;
  border-radius: var(--r-full);
  font-size: 13px;
  font-weight: 500;
  color: var(--primary);
  transition: background-color 0.15s ease;
}
.d-step:hover:not(:disabled) {
  background: var(--primary-tint);
}
.d-step:disabled {
  color: var(--faint);
  background: none;
  cursor: default;
}



.dlg-mask {
  position: fixed;
  inset: 0;
  background: var(--scrim);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: var(--z-mask);
}
.dlg-mask.show {
  opacity: 1;
  pointer-events: auto;
}

.dlg {
  position: fixed;
  left: 50%;
  top: 50%;
  width: min(560px, calc(100vw - 32px));
  max-height: min(84vh, 760px);
  overflow: auto;
  background: var(--surface);
  border-radius: var(--r-xl);
  box-shadow: var(--elev-3);
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -50%) scale(0.96);
  z-index: var(--z-dlg);
  transition: opacity 0.18s ease, transform 0.18s var(--ease);
}
.dlg.show {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, -50%) scale(1);
}

.dlg-wide {
  width: min(720px, calc(100vw - 32px));
}

.dlg-close {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--ink-3);
  transition: background-color 0.15s ease, color 0.15s ease;
}
.dlg-close:hover {
  background: var(--fill);
  color: var(--ink);
}
.dlg-close svg {
  width: 22px;
  height: 22px;
}

.dlg-title {
  padding-right: 40px;
  font-family: var(--font-ui);
  font-size: 22px;
  font-weight: 400;
  color: var(--ink);
}

.dlg-sub {
  margin-top: 2px;
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-4);
}

.about-rows {
  margin-top: 18px;
  border-top: 1px solid var(--outline-soft);
}

.about-row {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--outline-soft);
}
.about-row dt {
  font-size: 13px;
  color: var(--ink-3);
}
.about-row dd {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-2);
}
.about-row dd a {
  color: var(--primary);
}
.about-row dd a:hover {
  text-decoration: underline;
}

.about-keys {
  margin-top: 20px;
}
.about-keys-head {
  margin-bottom: 8px;
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-4);
}

.krow {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 5px 0;
  font-size: 13px;
  color: var(--ink-2);
}
.krow kbd {
  flex: 0 0 auto;
}
.krow span {
  margin-left: 4px;
}

.group-body {
  margin-top: 16px;
  max-height: calc(min(84vh, 760px) - 150px);
  overflow: auto;
}

.group-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 120px;
}
.gl-txt {
  font-size: 13px;
  color: var(--ink-3);
}
.gl-bar {
  width: 18px;
  height: 18px;
  border: 2px solid var(--outline);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: mg-spin 1s linear infinite;
}

@keyframes mg-spin {
  to {
    transform: rotate(360deg);
  }
}

.giscus {
  min-height: 120px;
}



#statusbar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: var(--sb);
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 0 20px;
  background: var(--bg);
  border-top: 1px solid var(--outline-soft);
  font-size: 12px;
  color: var(--ink-3);
  z-index: var(--z-status);
}

.sb-now {
  font-family: var(--font-ui);
  font-size: 11.5px;
  font-weight: 500;
  color: var(--ink-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 34ch;
}

.sb-hint {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0 auto;
  white-space: nowrap;
}
.sb-hint kbd {
  font-size: 10px;
  padding: 1px 5px;
  min-width: 14px;
  border: 0;
  background: var(--fill);
}

.sb-top {
  margin-left: auto;
  font-weight: 500;
  color: var(--primary);
  white-space: nowrap;
}
.sb-top:hover {
  text-decoration: underline;
}



#quickbar {
  display: none;
}

@media (max-width: 980px) {
  #quickbar {
    display: flex;
    position: sticky;
    top: var(--mh);
    z-index: 65;
    gap: 6px;
    align-items: stretch;
    padding: 8px 12px;
    background: var(--bg);
    border-bottom: 1px solid var(--outline-soft);
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x proximity;
  }
  #quickbar::-webkit-scrollbar {
    display: none;
  }
  #quickbar > .qb-item:first-child {
    margin-left: 12px;
  }
  #quickbar > .qb-item:last-child {
    margin-right: 12px;
  }

  .qb-item {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 0 0 auto;
    height: 34px;
    padding: 0 12px;
    border: 1px solid var(--outline);
    border-radius: var(--r-full);
    background: var(--surface);
    font-size: 12.5px;
    color: var(--ink-2);
    white-space: nowrap;
    scroll-snap-align: start;
    touch-action: manipulation;
    transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  }
  .qb-item.on {
    background: var(--primary-tint);
    border-color: transparent;
    color: var(--primary-strong);
    font-weight: 500;
  }

  .qb-no {
    font-family: var(--font-mono);
    font-size: 10.5px;
    color: var(--ink-4);
  }
  .qb-item.on .qb-no {
    color: var(--primary);
  }

  .qb-name {
    max-width: 96px;
    overflow: hidden;
    text-overflow: ellipsis;
  }
}



@media (max-width: 1080px) {
  #layout {
    gap: 28px;
  }
}

@media (max-width: 980px) {
  :root {
    --sb: 0px;
  }
  #statusbar {
    display: none;
  }
  #layout {
    grid-template-columns: 1fr;
    padding: 0 16px;
  }
  #toc {
    display: none;
  }
}

@media (max-width: 700px) {
  :root {
    --mh: 56px;
  }

  body {
    -webkit-tap-highlight-color: transparent;
  }

  .mh {
    gap: 8px;
    padding: 0 6px 0 12px;
  }
  .brand {
    min-width: 0;
  }
  .brand-name {
    font-size: 13.5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .brand-mark {
    width: 28px;
    height: 28px;
    font-size: 17px;
  }
  .mh-nav {
    display: none;
  }
  .menu-btn {
    display: grid;
    width: 44px;
    height: 44px;
    flex: 0 0 auto;
  }
  .menu-btn svg {
    width: 20px;
    height: 20px;
  }

  .searchwrap {
    height: 42px;
    min-width: 0;
  }
  #search {
    font-size: 16px;
  }
  .search-kbd {
    display: none;
  }
  .search-ico {
    margin-left: 12px;
  }

  
  body.searching {
    overflow: hidden;
  }
  body.searching .searchwrap {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 92;
    height: 56px;
    max-width: none;
    border: 0;
    border-bottom: 1px solid var(--outline-soft);
    border-radius: 0;
    background: var(--bg);
    box-shadow: none;
  }
  body.searching .search-ico {
    margin-left: 14px;
  }
  body.searching .search-cancel {
    display: inline-flex;
    align-items: center;
    height: 40px;
    padding: 0 12px;
    margin-right: 6px;
    border-radius: var(--r-full);
    font-family: var(--font-ui);
    font-size: 14px;
    font-weight: 500;
    color: var(--primary);
  }
  body.searching #search-results {
    display: block;
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    bottom: 0;
    max-height: none;
    border-radius: 0;
    box-shadow: none;
    padding: 4px 0;
    background: var(--bg);
    z-index: 92;
  }
  .sr-item {
    min-height: 52px;
  }

  .mmenu {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--outline-soft);
    box-shadow: var(--elev-2);
    border-radius: 0 0 var(--r-l) var(--r-l);
    padding: 8px;
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity 0.16s ease, transform 0.16s var(--ease);
    z-index: 8;
  }
  .mmenu.show {
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }

  
  .mast {
    padding-top: 28px;
  }
  .mast-title {
    font-size: 30px;
  }
  .mast-desc {
    font-size: 14px;
  }
  .deck-counts,
  .deck-keys {
    display: none;
  }
  .deck-touch {
    display: inline;
  }
  .mast-stats {
    gap: 10px 24px;
    margin-top: 20px;
  }
  .stat b {
    font-size: 22px;
  }
  .mast-chips {
    margin-top: 20px;
  }
  .mchip {
    height: 32px;
    font-size: 12.5px;
  }
  .mast-actions {
    margin-top: 20px;
  }

  
  .ch-title {
    font-size: 18px;
  }
  .ch-meta {
    display: none;
  }
  .row {
    padding: 9px 12px;
  }
  .r-open {
    display: none;
  }
  .tree .tree {
    margin-left: 10px;
    padding-left: 12px;
  }

  
  #detail {
    top: auto;
    left: 0;
    right: 0;
    bottom: 0;
    width: auto;
    height: 88dvh;
    border-left: 0;
    border-top: 1px solid var(--outline-soft);
    border-radius: var(--r-xl) var(--r-xl) 0 0;
    box-shadow: 0 -8px 28px rgba(0, 0, 0, 0.28);
    transform: translateY(105%);
    z-index: 72;
  }
  #detail.show {
    transform: none;
  }

  .d-top {
    display: block;
    position: relative;
    flex: 0 0 auto;
    height: 40px;
    touch-action: none;
  }
  .d-bar {
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 32px;
    height: 4px;
    border-radius: 2px;
    background: var(--outline);
  }
  .d-grip {
    display: none;
  }
  .d-close {
    top: 2px;
    right: 6px;
  }

  #detail-inner {
    padding: 4px 20px 32px;
  }
  .d-title {
    font-size: 22px;
  }
  .d-desc {
    font-size: 14px;
  }

  .d-rel .rel {
    margin-bottom: 18px;
  }
  .chip {
    min-height: 38px;
  }
  .ex-play,
  .ex-nm {
    height: 38px;
  }
  .d-foot {
    padding-bottom: calc(16px + env(safe-area-inset-bottom));
  }

  .dlg-title {
    font-size: 18px;
  }

  .about-row {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 10px 0;
  }
  .about-row dd {
    font-size: 12.5px;
  }
  .about-keys {
    margin-top: 14px;
  }
  .krow {
    font-size: 12px;
    padding: 3px 0;
  }

  .dlg {
    width: calc(100vw - 32px);
    max-width: 420px;
    padding: 20px 16px 22px;
    max-height: 78vh;
  }
  .dlg-wide {
    max-width: 460px;
  }
  .group-body {
    margin-top: 12px;
    max-height: calc(78vh - 130px);
  }

  .row,
  .toc-item,
  .mchip,
  .sr-item,
  .mm-item,
  .ex-play,
  .ex-nm,
  .d-copy,
  .d-step,
  .chip,
  .btn-filled,
  .link-quiet,
  .nav-btn,
  .icon-btn,
  .ch-toggle {
    touch-action: manipulation;
  }
  .row:active,
  .mchip:active,
  .sr-item:active {
    background: var(--fill);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  #detail {
    transition: none;
  }
}

@media print {
  #masthead,
  #toc,
  #statusbar,
  #detail,
  #dim,
  .dlg,
  .dlg-mask,
  .mast-actions,
  .ch-toggle {
    display: none !important;
  }
  body {
    padding: 0;
    background: #fff;
    color: #000;
  }
  #layout {
    display: block;
  }
  #board {
    padding: 0;
  }
  .chapter-body {
    display: block !important;
  }
  .row,
  .d-ex li {
    break-inside: avoid;
  }
}