:root {
  --font-cjk: "Source Han Serif TC", "Noto Serif TC", "Songti TC", "PMingLiU", "MingLiU", "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-latin: "EB Garamond", "Cormorant Garamond", Garamond, "Times New Roman", serif;
  --font: var(--font-latin), var(--font-cjk);

  --ink: #f3ece3;
  --ink-soft: rgba(243, 236, 227, 0.66);
  --ink-faint: rgba(243, 236, 227, 0.34);
  --rule: rgba(243, 236, 227, 0.16);
  --rule-faint: rgba(243, 236, 227, 0.08);

  --ground: #141211;
  --glow: 255, 236, 208;
  --glow-strength: 0.26;

  --ease: cubic-bezier(0.16, 0.84, 0.24, 1);
  --slow: 1.5s var(--ease);

  --gutter: clamp(1.6rem, 6vw, 7rem);
  --noise: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

html {
  scroll-behavior: smooth;
  scroll-snap-type: y proximity;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.9;
  font-kerning: normal;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection {
  background: rgba(var(--glow), 0.3);
}

h1,
h2,
h3,
p,
ul,
ol,
figure,
blockquote {
  margin: 0;
  padding: 0;
}

ul,
ol {
  list-style: none;
}

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

:focus-visible {
  outline: 1px solid rgba(var(--glow), 0.7);
  outline-offset: 6px;
}

.vert {
  writing-mode: vertical-rl;
  text-orientation: mixed;
}

.latin {
  font-family: var(--font-latin);
  text-transform: uppercase;
  letter-spacing: 0.34em;
  font-size: 0.66rem;
  font-weight: 500;
  line-height: 1.6;
}

.rule {
  width: 3.5rem;
  height: 1px;
  background: var(--rule);
  border: 0;
}

.skip {
  position: absolute;
  inset-block-start: -10rem;
  inset-inline-start: 1rem;
  z-index: 90;
  background: var(--ground);
  padding: 0.8rem 1.2rem;
}

.skip:focus {
  inset-block-start: 1rem;
}

.topbar {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: clamp(1.3rem, 2.6vw, 2rem) var(--gutter);
  color: var(--ink-soft);
  transition: border-color var(--slow), background-color var(--slow), color var(--slow);
  border-block-end: 1px solid transparent;
}

.topbar.is-pinned {
  border-block-end-color: var(--rule-faint);
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.22), transparent);
}

.topbar a {
  transition: color var(--slow);
}

.topbar a:hover {
  color: var(--ink);
}

.topbar__mark {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
}

.topbar__mark span:first-child {
  font-size: 1rem;
  letter-spacing: 0.3em;
  font-family: var(--font-cjk);
}

.topbar__nav {
  display: flex;
  align-items: center;
  gap: clamp(1.1rem, 2.6vw, 2.6rem);
}

.topbar__nav .latin {
  letter-spacing: 0.26em;
}

.wall {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ground);
  scroll-snap-align: start;
}

.wall__light {
  position: absolute;
  inset: -25% -15%;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(38% 32% at var(--lx, 62%) var(--ly, 42%), rgba(var(--glow), var(--glow-strength)), transparent 68%),
    radial-gradient(72% 62% at var(--lx, 62%) var(--ly, 42%), rgba(var(--glow), 0.1), transparent 72%);
  animation: breathe 16s ease-in-out infinite;
}

@keyframes breathe {
  0%,
  100% {
    opacity: 0.82;
  }
  50% {
    opacity: 1;
  }
}

.wall::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: radial-gradient(ellipse 95% 80% at 50% 45%, transparent 30%, rgba(0, 0, 0, 0.62) 100%);
}

.wall::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background-image: var(--noise);
  opacity: 0.05;
  mix-blend-mode: soft-light;
}

.wall__inner {
  position: relative;
  z-index: 3;
  max-width: 100rem;
  margin-inline: auto;
  min-height: 100svh;
  padding: clamp(7rem, 16vh, 11rem) var(--gutter) clamp(4rem, 10vh, 7rem);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(2.5rem, 7vw, 9rem);
}

.wall--flip .wall__inner {
  grid-template-columns: auto minmax(0, 1fr);
}

.wall--flip .wall__head {
  order: 1;
  justify-content: flex-start;
}

.wall--flip .wall__body {
  order: 2;
  justify-items: end;
}

.wall--flip .wall__lede {
  margin-inline-start: auto;
}

.wall--flip .entries {
  direction: rtl;
  width: min(100%, 30rem);
}

.wall--flip .entry__text {
  direction: ltr;
}

.wall--crimson,
.post--crimson {
  --ground: #79181d;
  --glow: 255, 208, 186;
  --glow-strength: 0.3;
  --ink: #f8e9df;
  --ink-soft: rgba(248, 233, 223, 0.68);
  --ink-faint: rgba(248, 233, 223, 0.36);
  --rule: rgba(248, 233, 223, 0.2);
  --rule-faint: rgba(248, 233, 223, 0.1);
}

.wall--olive,
.post--olive {
  --ground: #1b2a1d;
  --glow: 214, 235, 206;
  --glow-strength: 0.22;
  --ink: #eef0e6;
  --ink-soft: rgba(238, 240, 230, 0.64);
  --ink-faint: rgba(238, 240, 230, 0.32);
  --rule: rgba(238, 240, 230, 0.18);
  --rule-faint: rgba(238, 240, 230, 0.09);
}

.wall--navy,
.post--navy {
  --ground: #17233f;
  --glow: 214, 224, 246;
  --glow-strength: 0.22;
  --ink: #e9edf6;
  --ink-soft: rgba(233, 237, 246, 0.64);
  --ink-faint: rgba(233, 237, 246, 0.32);
  --rule: rgba(233, 237, 246, 0.18);
  --rule-faint: rgba(233, 237, 246, 0.09);
}

.wall--umber,
.post--umber {
  --ground: #3f2c20;
  --glow: 250, 224, 196;
  --glow-strength: 0.24;
  --ink: #f2e5d8;
  --ink-soft: rgba(242, 229, 216, 0.64);
  --ink-faint: rgba(242, 229, 216, 0.32);
  --rule: rgba(242, 229, 216, 0.18);
  --rule-faint: rgba(242, 229, 216, 0.09);
}

.wall--ink {
  --ground: #100e0d;
  --glow: 255, 232, 200;
  --glow-strength: 0.16;
}

.wall__head {
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  gap: clamp(1.1rem, 2.4vw, 2.2rem);
  padding-block-end: 0.6rem;
}

.wall__no {
  font-family: var(--font-cjk);
  font-size: 0.74rem;
  letter-spacing: 0.42em;
  color: var(--ink-soft);
  writing-mode: vertical-rl;
  align-self: flex-start;
  padding-block-start: 0.5rem;
}

.wall__title {
  display: grid;
  grid-auto-flow: column;
  grid-template-rows: repeat(2, auto);
  direction: rtl;
  font-family: var(--font-cjk);
  font-weight: 400;
  font-size: clamp(3rem, 6.6vw, 5.6rem);
  line-height: 1.2;
  letter-spacing: 0.4em;
}

.wall__head-en {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding-block-end: 0.9rem;
}

.wall__head-en em {
  font-family: var(--font-latin);
  font-style: italic;
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  color: var(--ink-faint);
}

.wall__head-en strong {
  font-family: var(--font-latin);
  font-weight: 500;
  text-transform: uppercase;
  font-size: clamp(0.72rem, 0.95vw, 0.86rem);
  letter-spacing: 0.32em;
  color: var(--ink-soft);
  max-width: 12rem;
  line-height: 1.9;
}

.wall__body {
  display: grid;
  gap: clamp(2.4rem, 5vw, 3.8rem);
  justify-items: start;
  max-width: 40rem;
}

.wall__lede {
  font-family: var(--font-cjk);
  font-size: clamp(1.18rem, 1.9vw, 1.6rem);
  line-height: 2.1;
  letter-spacing: 0.06em;
  color: var(--ink);
  max-width: 22em;
}

.entries {
  display: grid;
  width: min(100%, 34rem);
}

.entry {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  gap: 1.6rem;
  padding: clamp(1.1rem, 2.2vw, 1.5rem) 0;
  position: relative;
}

.entry::before {
  content: "";
  position: absolute;
  inset-inline-start: -1.1rem;
  inset-block: 0;
  width: 1px;
  background: rgba(var(--glow), 0.75);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.9s var(--ease);
}

.entry:hover::before,
.entry:focus-visible::before {
  transform: scaleY(1);
}

.entry__text {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-width: 0;
}

.entry__title {
  font-family: var(--font-cjk);
  font-size: clamp(1.02rem, 1.4vw, 1.2rem);
  letter-spacing: 0.1em;
  transition: transform 0.9s var(--ease);
}

.entry:hover .entry__title {
  transform: translateX(0.28rem);
}

.wall--flip .entry:hover .entry__title {
  transform: translateX(-0.28rem);
}

.entry__en {
  font-family: var(--font-latin);
  font-style: italic;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
}

.entry__date {
  font-family: var(--font-cjk);
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  color: var(--ink-faint);
  white-space: nowrap;
}

.cover {
  display: grid;
  place-items: center;
  text-align: center;
}

.cover__inner {
  position: relative;
  z-index: 3;
  display: grid;
  justify-items: center;
  gap: clamp(1.6rem, 4vh, 3rem);
  padding: 8rem var(--gutter) clamp(10rem, 18vh, 13rem);
}

.cover__title {
  display: grid;
  grid-template-rows: repeat(2, auto);
  font-family: var(--font-cjk);
  font-weight: 400;
  font-size: clamp(5.5rem, 17vmin, 11rem);
  line-height: 1.08;
  letter-spacing: 0.04em;
}

.cover__eyebrow {
  font-family: var(--font-cjk);
  font-size: 0.74rem;
  letter-spacing: 0.5em;
  color: var(--ink-soft);
}

.cover__line {
  font-family: var(--font-cjk);
  font-size: clamp(0.9rem, 1.5vw, 1.05rem);
  letter-spacing: 0.3em;
  color: var(--ink-soft);
}

.ch {
  display: inline-block;
  animation: rise 2.4s var(--ease) both;
  animation-delay: calc(var(--i) * 320ms + 200ms);
}

@keyframes rise {
  from {
    opacity: 0;
    filter: blur(14px);
    transform: translateY(-1.4rem) scale(0.98);
  }
  to {
    opacity: 1;
    filter: blur(0);
    transform: none;
  }
}

.scroll-hint {
  position: relative;
  z-index: 3;
  position: absolute;
  inset-block-end: clamp(2rem, 6vh, 3.4rem);
  inset-inline: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.1rem;
  color: var(--ink-faint);
}

.scroll-hint__line {
  width: 1px;
  height: clamp(2.4rem, 7vh, 4.5rem);
  background: linear-gradient(to bottom, transparent, var(--rule));
  animation: seep 4.5s ease-in-out infinite;
}

@keyframes seep {
  0%,
  100% {
    opacity: 0.4;
    transform: scaleY(0.7);
    transform-origin: top;
  }
  50% {
    opacity: 1;
    transform: scaleY(1);
    transform-origin: top;
  }
}

.foot {
  position: relative;
  z-index: 3;
  max-width: 100rem;
  margin-inline: auto;
  padding: clamp(4rem, 10vh, 7rem) var(--gutter) clamp(3rem, 8vh, 5rem);
  display: grid;
  gap: clamp(2.4rem, 6vw, 4rem);
  min-height: 70svh;
  align-content: center;
  scroll-snap-align: start;
}

.foot__title {
  font-family: var(--font-cjk);
  font-size: clamp(1.6rem, 3.4vw, 2.6rem);
  letter-spacing: 0.16em;
  line-height: 2;
  max-width: 24em;
}

.foot__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 2.4rem;
  color: var(--ink-faint);
  border-block-start: 1px solid var(--rule-faint);
  padding-block-start: clamp(1.4rem, 3vw, 2rem);
}

.foot__meta .latin {
  letter-spacing: 0.22em;
}

.post {
  background: var(--ground);
  position: relative;
  isolation: isolate;
}

.post::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background-image: var(--noise);
  opacity: 0.05;
  mix-blend-mode: soft-light;
}

.page-light {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(36% 30% at 62% var(--light-y, 40%), rgba(var(--glow), var(--glow-strength)), transparent 70%),
    radial-gradient(80% 70% at 62% var(--light-y, 40%), rgba(var(--glow), 0.09), transparent 74%),
    radial-gradient(ellipse 90% 70% at 50% 50%, transparent 25%, rgba(0, 0, 0, 0.6) 100%);
  animation: breathe 16s ease-in-out infinite;
}

.progress {
  position: fixed;
  inset-block: 0;
  inset-inline-end: 0;
  width: 1px;
  z-index: 55;
  background: var(--rule-faint);
}

.progress__bar {
  width: 100%;
  height: 0;
  background: rgba(var(--glow), 0.85);
}

.post__content {
  position: relative;
  z-index: 3;
}

.post-head {
  min-height: 100svh;
  max-width: 100rem;
  margin-inline: auto;
  padding: clamp(7rem, 16vh, 11rem) var(--gutter) clamp(4rem, 10vh, 7rem);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(2rem, 6vw, 7rem);
}

.post-head__meta {
  display: grid;
  gap: clamp(1.6rem, 4vw, 2.6rem);
  align-content: center;
  justify-items: start;
}

.post-head__meta .latin {
  letter-spacing: 0.3em;
}

.post-head__en {
  font-family: var(--font-latin);
  font-size: clamp(0.8rem, 1.15vw, 0.95rem);
  text-transform: uppercase;
  letter-spacing: 0.32em;
  line-height: 2.1;
  color: var(--ink-soft);
  max-width: 15rem;
}

.post-head__en em {
  display: block;
  font-style: italic;
  text-transform: none;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
  margin-block-end: 0.5rem;
}

.post-head__title {
  justify-self: end;
  display: flex;
  flex-direction: row-reverse;
  align-items: center;
  gap: clamp(1.1rem, 2.4vw, 2.4rem);
}

.post-head__title h1 {
  display: flex;
  flex-direction: row-reverse;
  align-items: center;
  gap: clamp(0.5rem, 1.2vw, 1.1rem);
  font-family: var(--font-cjk);
  font-weight: 400;
}

.post-head__title h1 span {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  white-space: nowrap;
  display: block;
}

.ttl__sub {
  font-size: clamp(1.05rem, 2.1vw, 1.65rem);
  line-height: 1.2;
  letter-spacing: 0.18em;
}

.ttl__dash {
  font-size: 1.75rem;
  letter-spacing: 0;
  color: var(--ink-soft);
}

.ttl__big {
  font-size: clamp(2.3rem, 5.4vw, 4.2rem);
  line-height: 1.06;
  letter-spacing: 0.06em;
}

.post-head__no {
  writing-mode: vertical-rl;
  font-family: var(--font-cjk);
  font-size: 0.74rem;
  letter-spacing: 0.42em;
  color: var(--ink-soft);
  align-self: flex-start;
}

.subhead {
  max-width: 74rem;
  margin-inline: auto;
  padding: clamp(4rem, 12vh, 8rem) var(--gutter) clamp(1rem, 3vh, 2rem);
  display: flex;
  align-items: flex-start;
  gap: clamp(1.4rem, 3vw, 2.4rem);
}

.subhead h2 {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: var(--font-cjk);
  font-weight: 400;
  font-size: clamp(1.05rem, 1.7vw, 1.35rem);
  line-height: 1.3;
  letter-spacing: 0.32em;
}

.subhead .latin {
  padding-block-start: 0.5rem;
  color: var(--ink-faint);
}

.post-head__note {
  max-width: 26rem;
  font-family: var(--font-cjk);
  font-size: 0.94rem;
  line-height: 2.1;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}

.poems {
  max-width: 100rem;
  margin-inline: auto;
  padding: clamp(3rem, 8vh, 6rem) var(--gutter) clamp(4rem, 10vh, 7rem);
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: flex-start;
  gap: clamp(2.4rem, 6vw, 6rem);
}

.poem {
  display: flex;
  align-items: flex-start;
  gap: 1.4rem;
}

.poem__text {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: var(--font-cjk);
  font-size: clamp(1.05rem, 1.7vw, 1.32rem);
  line-height: 2.4;
  letter-spacing: 0.16em;
  color: var(--ink);
  max-height: clamp(20rem, 62vh, 36rem);
}

.poem__source {
  writing-mode: vertical-rl;
  font-family: var(--font-cjk);
  font-size: 0.68rem;
  letter-spacing: 0.3em;
  color: var(--ink-faint);
  align-self: flex-start;
  padding-block-start: 0.4rem;
}

.read {
  max-width: 74rem;
  margin-inline: auto;
  padding: clamp(2rem, 6vh, 4rem) var(--gutter) clamp(4rem, 10vh, 7rem);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(2.6rem, 6vw, 5rem);
  align-items: start;
}

@media (min-width: 62rem) {
  .read {
    grid-template-columns: 15rem minmax(0, 36rem);
    justify-content: center;
    gap: clamp(3rem, 7vw, 7rem);
  }
}

.read__en {
  display: grid;
  gap: 1.5rem;
  font-family: var(--font-latin);
  font-size: 0.88rem;
  line-height: 1.95;
  color: var(--ink-faint);
}

.read__en p {
  text-align: justify;
  hyphens: auto;
}

.read__label {
  font-family: var(--font-latin);
  font-style: italic;
  font-size: 0.98rem;
  letter-spacing: 0.03em;
  color: var(--ink-soft);
  margin-block-end: 0.4rem;
}

.read__main {
  display: grid;
  gap: clamp(1.4rem, 2.6vw, 2rem);
}

.read__main p {
  font-family: var(--font-cjk);
  font-size: clamp(1rem, 1.15vw, 1.08rem);
  line-height: 2.35;
  letter-spacing: 0.05em;
  text-indent: 2em;
  color: rgba(248, 233, 223, 0.92);
}

.read__main p:first-of-type::first-letter {
  font-size: 1.35em;
  line-height: 1;
  color: var(--ink);
}

.pull {
  padding: clamp(7rem, 22vh, 14rem) var(--gutter);
  display: grid;
  justify-items: center;
  gap: clamp(2rem, 6vw, 3.4rem);
  text-align: center;
}

.pull__quote {
  display: flex;
  flex-direction: row-reverse;
  align-items: center;
  gap: clamp(1rem, 2.4vw, 1.8rem);
  font-family: var(--font-cjk);
  font-size: clamp(1.15rem, 1.9vw, 1.5rem);
  color: var(--ink);
}

.pull__quote span {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  line-height: 2.6;
  letter-spacing: 0.2em;
  max-height: clamp(14rem, 54vh, 30rem);
}

.pull__source {
  font-family: var(--font-cjk);
  font-size: 0.7rem;
  letter-spacing: 0.36em;
  color: var(--ink-faint);
}

.end {
  max-width: 74rem;
  margin-inline: auto;
  padding: clamp(3rem, 8vh, 5rem) var(--gutter) clamp(5rem, 12vh, 8rem);
  display: grid;
  gap: clamp(2.4rem, 6vw, 4rem);
}

.end__seal {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  color: var(--ink-faint);
}

.end__seal span {
  font-family: var(--font-cjk);
  font-size: 0.8rem;
  letter-spacing: 0.5em;
}

.end__nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  gap: 1px;
  border-block-start: 1px solid var(--rule-faint);
  border-block-end: 1px solid var(--rule-faint);
}

.end__nav a {
  padding: clamp(1.6rem, 3.4vw, 2.4rem) 0;
  display: grid;
  gap: 0.7rem;
  transition: color var(--slow);
}

.end__nav a:hover {
  color: var(--ink);
}

.end__nav small {
  font-family: var(--font-latin);
  text-transform: uppercase;
  font-size: 0.64rem;
  letter-spacing: 0.34em;
  color: var(--ink-faint);
}

.end__nav strong {
  font-family: var(--font-cjk);
  font-weight: 400;
  font-size: clamp(1rem, 1.4vw, 1.16rem);
  letter-spacing: 0.14em;
  color: var(--ink-soft);
  transition: color var(--slow);
}

.end__nav a:hover strong {
  color: var(--ink);
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(1.4rem);
  filter: blur(8px);
  transition: opacity var(--slow), transform var(--slow), filter var(--slow);
  transition-delay: var(--d, 0ms);
}

.js [data-reveal].is-in {
  opacity: 1;
  transform: none;
  filter: blur(0);
}

@media (max-width: 52rem) {
  .wall__inner,
  .wall--flip .wall__inner,
  .post-head {
    grid-template-columns: minmax(0, 1fr);
    align-content: center;
    gap: clamp(2.4rem, 8vw, 3.6rem);
  }

  .wall__head,
  .wall--flip .wall__head {
    order: 1;
    justify-content: flex-start;
  }

  .wall__body,
  .wall--flip .wall__body {
    order: 2;
    text-align: start;
    justify-items: start;
  }

  .wall--flip .entry:hover .entry__title {
    transform: translateX(0.28rem);
  }

  .wall--flip .entries,
  .wall--flip .entry__text {
    direction: ltr;
  }

  .wall--flip .wall__lede {
    margin-inline-start: 0;
  }

  .post-head__title {
    justify-self: start;
    flex-direction: column-reverse;
    align-items: flex-start;
    gap: 1.4rem;
  }

  .post-head__title h1 {
    gap: 0.5rem;
  }

  .post-head__no {
    align-self: flex-start;
    writing-mode: horizontal-tb;
    letter-spacing: 0.42em;
  }

  .ttl__sub {
    font-size: 1rem;
  }

  .ttl__big {
    font-size: 2.2rem;
  }

  .topbar__nav a:nth-child(n + 3) {
    display: none;
  }
}

.notfound {
  min-height: 100svh;
  display: grid;
  place-items: center;
}

.notfound__inner {
  position: relative;
  z-index: 3;
  display: grid;
  justify-items: center;
  gap: clamp(1.3rem, 3.2vh, 2.2rem);
  padding: clamp(4rem, 12vh, 8rem) var(--gutter);
  text-align: center;
}

.notfound__head {
  display: flex;
  align-items: flex-start;
  gap: clamp(0.9rem, 2vw, 1.7rem);
}

.notfound__vol {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: var(--font-cjk);
  font-size: 0.74rem;
  letter-spacing: 0.42em;
  color: var(--ink-soft);
  padding-block-start: 0.45rem;
}

.notfound__title {
  display: grid;
  grid-auto-flow: column;
  grid-template-rows: repeat(2, auto);
  direction: rtl;
  font-family: var(--font-cjk);
  font-weight: 400;
  font-size: clamp(2.4rem, 6vw, 4.6rem);
  line-height: 1.06;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.notfound__note {
  max-width: 26rem;
  font-family: var(--font-cjk);
  font-size: clamp(0.95rem, 1.5vw, 1.05rem);
  line-height: 2.2;
  color: var(--ink-soft);
}

.notfound__back {
  font-family: var(--font-cjk);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  color: var(--ink);
  padding-block-end: 0.35rem;
  border-block-end: 1px solid var(--rule);
  transition: border-color 0.45s var(--ease);
}

.notfound__back:hover {
  border-block-end-color: rgba(var(--glow), 0.6);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
    scroll-snap-type: none;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
  }
}