.reading-page {
  --reading-rail-x: max(0px, calc(50% - 590px - var(--page-gutter)));
  background:
    linear-gradient(90deg, transparent var(--reading-rail-x), rgba(183, 203, 197, 0.4) var(--reading-rail-x), rgba(183, 203, 197, 0.4) calc(var(--reading-rail-x) + 1px), transparent calc(var(--reading-rail-x) + 1px)),
    radial-gradient(circle at 90% 4%, rgba(20, 208, 180, 0.13), transparent 24rem),
    var(--paper);
}

.reading-header .header-inner {
  grid-template-columns: 1fr auto;
}

.reading-header .primary-nav {
  justify-self: end;
}

.reading-header .primary-nav a[aria-current="page"] {
  color: var(--qingju-dark);
  font-weight: 750;
}

.collection-hero {
  padding: 112px 0 72px;
}

.collection-hero h1 {
  max-width: 9em;
  margin-bottom: 30px;
}

.collection-intro {
  max-width: 46rem;
  margin-bottom: 0;
  color: #38534e;
  font-size: clamp(1.08rem, 1.55vw, 1.28rem);
  line-height: 1.9;
}

.collection-modes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 240px));
  margin-top: 42px;
}

.mode-link {
  display: grid;
  gap: 5px;
  min-height: 88px;
  padding: 20px 24px 16px 20px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  text-decoration: none;
}

.mode-link + .mode-link {
  border-left: 1px solid var(--line);
}

.mode-link span {
  color: inherit;
  font-size: 1rem;
  font-weight: 800;
}

.mode-link small {
  font-size: 0.73rem;
  letter-spacing: 0.05em;
}

.mode-link:hover,
.mode-link.is-current {
  color: var(--ink);
}

.mode-link.is-current {
  padding-top: 18px;
  border-top: 3px solid var(--qingju);
}

.notebook {
  max-height: clamp(38rem, 68vh, 58rem);
  padding: 18px 0 120px;
  overflow-y: auto;
  overscroll-behavior-y: contain;
  scrollbar-color: var(--qingju-dark) rgba(183, 203, 197, 0.34);
  scrollbar-gutter: stable;
  scrollbar-width: thin;
  scroll-behavior: smooth;
  scroll-snap-type: y proximity;
}

.notebook::-webkit-scrollbar {
  width: 10px;
}

.notebook::-webkit-scrollbar-track {
  background: rgba(183, 203, 197, 0.34);
}

.notebook::-webkit-scrollbar-thumb {
  border: 3px solid var(--paper);
  border-radius: 999px;
  background: var(--qingju-dark);
}

.notebook:focus-visible {
  outline: 2px solid var(--qingju-dark);
  outline-offset: 6px;
}

.notebook-list {
  --timeline-date-width: 82px;
  --timeline-node-width: 24px;
  --timeline-gap: 12px;
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.notebook-list::before {
  position: absolute;
  top: 32px;
  bottom: 32px;
  left: calc(var(--timeline-date-width) + var(--timeline-gap) + 7px);
  width: 1px;
  background: var(--line);
  content: "";
}

.notebook-entry {
  display: grid;
  grid-template-columns: var(--timeline-date-width) var(--timeline-node-width) minmax(0, 1fr);
  gap: var(--timeline-gap);
  align-items: start;
  padding: 34px 0;
  scroll-snap-align: start;
}

.entry-date {
  padding-top: 5px;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 750;
  line-height: 1.45;
  text-align: right;
}

.entry-node {
  position: relative;
  z-index: 1;
  display: grid;
  width: 15px;
  height: 15px;
  margin-top: 7px;
  place-items: center;
  border: 4px solid var(--paper);
  border-radius: 50%;
  background: var(--qingju);
  box-shadow: 0 0 0 1px var(--qingju-dark);
}

.entry-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 180px;
  gap: clamp(28px, 6vw, 84px);
  padding: 26px 30px;
  border-top: 2px solid var(--ink);
  background: rgba(251, 254, 253, 0.76);
}

.entry-body h2 {
  max-width: 16em;
  margin-bottom: 14px;
  font-size: clamp(1.45rem, 2.4vw, 2.25rem);
  font-weight: 650;
  letter-spacing: -0.035em;
  line-height: 1.12;
}

.entry-body h2 a {
  text-decoration: none;
}

.entry-body h2 a:hover {
  color: var(--qingju-dark);
}

.entry-body p {
  max-width: 47rem;
  margin-bottom: 22px;
  color: #405b55;
  font-size: 0.94rem;
  line-height: 1.8;
}

.entry-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--qingju-dark);
  font-size: 0.84rem;
  font-weight: 800;
  text-decoration-thickness: 1px;
  text-underline-offset: 5px;
}

.entry-link:hover {
  color: var(--sky);
}

.entry-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  align-items: center;
}

.entry-views {
  color: var(--muted);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
}

.entry-views strong {
  color: var(--qingju-dark);
  font-size: 0.84rem;
}

.entry-proof {
  padding-top: 4px;
}

.entry-proof span,
.entry-proof strong {
  display: block;
}

.entry-proof span {
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

.entry-proof strong {
  font-size: 0.8rem;
  line-height: 1.55;
}

.collection-note {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  margin-top: 56px;
  padding: 38px;
  border-top: 3px solid var(--qingju);
  background: #dbece7;
  color: var(--ink);
}

.collection-note h2 {
  margin-bottom: 0;
  font-size: clamp(1.8rem, 3vw, 3rem);
  letter-spacing: -0.035em;
  line-height: 1.12;
}

.collection-note p {
  max-width: 38rem;
  margin-bottom: 0;
  color: #405b55;
  line-height: 1.8;
}

.project-hero {
  padding-bottom: 52px;
}

.project-explorer {
  padding: 14px 0 120px;
}

.project-explorer-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
  gap: clamp(28px, 6vw, 90px);
  align-items: end;
  margin-bottom: 42px;
  padding-top: 28px;
  border-top: 2px solid var(--ink);
}

.project-explorer-heading h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.8rem);
  font-weight: 650;
  letter-spacing: -0.04em;
  line-height: 1.08;
}

.project-explorer-heading p {
  max-width: 34rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.75;
}

.project-explorer-grid {
  display: block;
}

.project-reading-page .project-map {
  display: block;
  margin-top: 0;
}

.project-branch {
  position: relative;
  margin-bottom: 80px;
  scroll-margin-top: 110px;
}

.branch-controller {
  --branch-color: var(--sky);
  color: var(--sky);
}

.branch-airpods {
  --branch-color: var(--leaf);
  color: var(--leaf);
}

.branch-geotoy {
  --branch-color: var(--citrus-dark);
  color: var(--citrus-dark);
}

.branch-label {
  display: flex;
  gap: 32px;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 16px;
}

.branch-copy {
  min-width: 0;
}

.branch-title-line {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 7px;
}

.branch-label h3 {
  margin: 0;
  color: var(--ink);
  font-size: 1.35rem;
  line-height: 1.2;
}

.branch-summary {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.6;
}

.project-facts {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  margin: 0;
  color: var(--muted);
  font-size: 0.68rem;
  line-height: 1.4;
  white-space: nowrap;
}

.project-status {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 3px 8px;
  border: 1px solid currentColor;
  font-weight: 800;
}

.project-status.is-active {
  color: var(--qingju-dark);
  background: rgba(20, 208, 180, 0.1);
}

.project-status.is-completed {
  color: var(--muted);
  background: var(--paper-deep);
}

.scroll-hint {
  flex: 0 0 auto;
  padding-bottom: 2px;
  color: var(--branch-color);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.branch-label b {
  display: inline-block;
  margin-left: 5px;
  font-size: 1rem;
}

.project-node-list {
  position: relative;
  display: grid;
  grid-auto-columns: minmax(280px, 31%);
  grid-auto-flow: column;
  gap: 18px;
  margin: 0;
  padding: 34px 4px 20px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-inline: contain;
  scrollbar-color: var(--branch-color) var(--paper-deep);
  scrollbar-width: thin;
  scroll-padding-inline: 4px;
  scroll-snap-type: inline proximity;
  list-style: none;
}

.project-node-list::before {
  position: absolute;
  top: 15px;
  right: 4px;
  left: 0;
  height: 2px;
  background: var(--branch-color);
  content: "";
}

.project-node-list::-webkit-scrollbar {
  height: 6px;
}

.project-node-list::-webkit-scrollbar-track {
  background: var(--paper-deep);
}

.project-node-list::-webkit-scrollbar-thumb {
  border-radius: 99px;
  background: var(--branch-color);
}

.project-node-list li {
  position: relative;
  min-width: 0;
  scroll-snap-align: start;
}

.project-node-list li::before {
  position: absolute;
  z-index: 1;
  top: -25px;
  left: 18px;
  width: 12px;
  height: 12px;
  border: 3px solid var(--paper);
  border-radius: 50%;
  background: var(--branch-color);
  box-shadow: 0 0 0 1px var(--branch-color);
  content: "";
}

.project-node {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-top: 4px solid var(--branch-color);
  color: var(--ink);
  background: var(--card);
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.project-node-cover {
  display: block;
  flex: 0 0 auto;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: var(--paper-deep);
}

.project-node-cover img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 360ms cubic-bezier(0.22, 1, 0.36, 1);
}

.project-node-copy {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  min-height: 190px;
  padding: 20px 22px 22px;
}

.project-node:hover,
.project-node:focus-visible {
  border-color: var(--branch-color);
  box-shadow: 0 16px 32px rgba(18, 68, 60, 0.1);
  transform: translateY(-5px);
}

.project-node:hover .project-node-cover img,
.project-node:focus-visible .project-node-cover img {
  transform: scale(1.025);
}

.node-date {
  margin-bottom: 22px;
  color: var(--branch-color);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.project-node strong {
  margin-bottom: 7px;
  font-size: 0.98rem;
  line-height: 1.35;
}

.project-node small {
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.45;
}

.node-summary {
  display: block;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.6;
  white-space: normal;
}

.compact-footer .footer-meta {
  grid-template-columns: 1fr auto;
}

.article-hero {
  padding: 86px 0 72px;
  border-bottom: 1px solid var(--line);
}

.article-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 250px;
  gap: clamp(50px, 8vw, 120px);
  align-items: end;
}

.article-cover {
  overflow: hidden;
  aspect-ratio: 16 / 9;
  margin: 56px 0 0;
  border: 1px solid var(--line);
  background: var(--paper-deep);
}

.article-cover img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-hero h1 {
  max-width: 12em;
  margin-bottom: 26px;
  font-size: clamp(3rem, 6vw, 5.8rem);
}

.article-geotoy-page .article-hero h1 span {
  display: block;
}

.article-deck {
  max-width: 47rem;
  margin-bottom: 0;
  color: #38534e;
  font-size: clamp(1.08rem, 1.6vw, 1.28rem);
  line-height: 1.85;
}

.article-meta {
  margin: 0;
  padding: 22px 0 0;
  border-top: 2px solid var(--ink);
}

.article-meta div {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 12px;
  padding: 8px 0;
}

.article-meta dt,
.article-meta dd {
  margin: 0;
  font-size: 0.76rem;
  line-height: 1.5;
}

.article-meta dt {
  color: var(--muted);
}

.article-meta dd {
  font-weight: 750;
}

.article-layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 720px);
  gap: clamp(54px, 8vw, 112px);
  justify-content: center;
  padding-top: 72px;
  padding-bottom: 120px;
}

.article-layout-solo {
  grid-template-columns: minmax(0, 720px);
}

.article-rail {
  position: sticky;
  top: 112px;
  min-width: 0;
  align-self: start;
}

.article-outline summary {
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  cursor: pointer;
  list-style: none;
}

.article-outline summary::-webkit-details-marker {
  display: none;
}

.article-outline summary::after {
  content: "－";
  float: right;
}

.article-outline:not([open]) summary::after {
  content: "＋";
}

.article-rail ol {
  max-height: calc(100vh - 180px);
  margin: 0;
  padding: 0;
  overflow-y: auto;
  scrollbar-color: var(--qingju) var(--paper-deep);
  scrollbar-width: thin;
  list-style: none;
}

.article-rail a {
  display: block;
  min-height: 44px;
  padding: 10px 8px 10px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.75rem;
  line-height: 1.45;
  text-decoration: none;
}

.article-rail a:hover,
.article-rail a:focus-visible {
  color: var(--qingju-dark);
}

.article-copy {
  min-width: 0;
  font-size: 1.04rem;
  line-height: 1.95;
}

.article-copy > p,
.article-copy > ul,
.article-copy > ol,
.article-copy > blockquote {
  max-width: 70ch;
}

.article-copy h2 {
  max-width: 100%;
  margin: 3.6em 0 1em;
  padding-top: 18px;
  border-top: 2px solid var(--ink);
  font-size: clamp(1.7rem, 2.4vw, 2.15rem);
  font-weight: 720;
  letter-spacing: -0.025em;
  line-height: 1.26;
  text-wrap: balance;
}

.article-copy h2:first-child {
  margin-top: 0;
}

.article-copy h3 {
  margin: 2.3em 0 0.65em;
  font-size: 1.25rem;
  line-height: 1.35;
}

.article-copy p,
.article-copy li {
  color: #38534e;
}

.article-copy ul,
.article-copy ol {
  padding-left: 1.35em;
}

.article-copy li {
  margin-bottom: 0.7em;
  padding-left: 0.25em;
}

.article-copy strong {
  color: var(--ink);
}

.article-copy a {
  color: var(--sky);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.article-copy hr {
  height: 1px;
  margin: 3.2em 0;
  border: 0;
  background: var(--line);
}

.article-copy code {
  padding: 0.12em 0.35em;
  border-radius: 3px;
  background: var(--paper-deep);
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.88em;
}

.article-copy pre {
  max-width: 100%;
  margin: 2em 0;
  padding: 22px;
  overflow-x: auto;
  border: 1px solid #35514b;
  background: var(--ink);
  color: #e2efeb;
  font-size: 0.84rem;
  line-height: 1.7;
  white-space: pre;
}

.article-copy pre code {
  padding: 0;
  background: transparent;
  color: inherit;
  font-size: inherit;
}

.process-flow {
  margin: 2.4em 0;
  padding: 24px;
  border: 1px solid var(--line);
  background: var(--paper-deep);
}

.process-flow figcaption {
  margin-bottom: 16px;
  color: var(--qingju-dark);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.process-flow-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 38px 16px;
  max-width: 100%;
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-flow-list li {
  position: relative;
  min-width: 0;
  min-height: 112px;
  margin: 0;
  padding: 16px;
  border-top: 3px solid var(--qingju);
  background: var(--card);
}

.process-flow-list li::after {
  position: absolute;
  top: 48px;
  right: -13px;
  color: var(--qingju-dark);
  content: "→";
}

.process-flow-list li:nth-child(3n)::after {
  top: auto;
  right: 50%;
  bottom: -28px;
  transform: translateX(50%);
  content: "↓";
}

.process-flow-list li:last-child::after {
  content: none;
}

.process-flow-step {
  display: block;
  margin-bottom: 12px;
  color: var(--qingju-dark);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.process-flow-list strong {
  display: block;
  font-size: 0.9rem;
  line-height: 1.55;
}

.process-flow-cycle {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.75rem;
  line-height: 1.5;
}

.article-copy table {
  display: block;
  width: max-content;
  max-width: 100%;
  margin: 2.2em 0;
  overflow-x: auto;
  border-collapse: collapse;
  font-size: 0.88rem;
  line-height: 1.65;
}

.article-table-scroll {
  margin: 2.2em 0;
}

.article-table-scroll-note {
  display: none;
}

.article-table-scroll table {
  margin: 0;
}

.article-copy th,
.article-copy td {
  min-width: 9rem;
  padding: 12px 14px;
  border: 1px solid var(--line);
  color: #38534e;
  text-align: left;
  vertical-align: top;
}

.article-copy th {
  background: var(--paper-deep);
  color: var(--ink);
}

.article-figure {
  margin: 2.6em 0;
}

.article-figure-portrait {
  max-width: 430px;
  margin-right: auto;
  margin-left: auto;
}

.article-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background: var(--ink);
}

.article-figure figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.6;
}

.article-copy blockquote,
.evidence-note {
  margin: 2.4em 0;
  padding: 26px 28px;
  border: 0;
  background: #fff6d8;
  color: #4e420f;
}

.article-copy blockquote p,
.evidence-note p {
  margin-bottom: 0;
  color: inherit;
}

.evidence-note strong {
  display: block;
  margin-bottom: 8px;
  color: #6d5400;
  font-size: 0.78rem;
  letter-spacing: 0.07em;
}

.takeaway {
  margin: 3.2em 0;
  padding: 30px;
  background: var(--ink);
  color: var(--paper);
}

.takeaway p {
  margin: 0;
  color: inherit;
  font-size: 1.15rem;
  font-weight: 650;
  line-height: 1.7;
}

.article-next {
  margin-top: 64px;
  padding-top: 28px;
  border-top: 2px solid var(--ink);
}

.article-next span {
  display: block;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.article-next a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--ink);
  font-size: clamp(1.35rem, 2.5vw, 2rem);
  font-weight: 750;
  line-height: 1.25;
  text-decoration: none;
}

.article-next a:hover {
  color: var(--qingju-dark);
}

@media (max-width: 820px) {
  .reading-page {
    background: var(--paper);
  }

  .reading-header .header-inner {
    grid-template-columns: 1fr auto;
  }

  .reading-header .primary-nav {
    display: flex;
    gap: 8px;
  }

  .reading-header .primary-nav a:first-child {
    display: none;
  }

  .collection-hero {
    padding: 76px 0 54px;
  }

  .collection-modes {
    margin-top: 34px;
  }

  .notebook-list::before {
    left: 7px;
  }

  .notebook-entry {
    grid-template-columns: 16px minmax(0, 1fr);
    gap: 14px;
    padding: 18px 0;
  }

  .entry-date {
    grid-column: 2;
    padding: 0;
    text-align: left;
  }

  .entry-node {
    grid-row: 1 / span 2;
    grid-column: 1;
    margin-top: 3px;
  }

  .entry-body {
    grid-row: 2;
    grid-column: 2;
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 24px 0 34px;
    background: transparent;
  }

  .notebook {
    max-height: 70svh;
    padding-bottom: 48px;
  }

  .entry-body h2 {
    font-size: clamp(1.36rem, 6.4vw, 1.72rem);
  }

  .entry-body p {
    font-size: 0.92rem;
  }

  .entry-proof {
    max-width: 28rem;
    padding-top: 18px;
    border-top: 1px solid var(--line);
  }

  .collection-note,
  .article-hero-inner {
    grid-template-columns: 1fr;
  }

  .project-explorer {
    padding-bottom: 82px;
  }

  .project-explorer-heading {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .compact-footer .footer-meta {
    grid-template-columns: 1fr;
  }

  .article-hero {
    padding: 64px 0 54px;
  }

  .article-cover {
    margin-top: 36px;
  }

  .article-layout {
    grid-template-columns: 1fr;
    gap: 42px;
    padding-top: 46px;
    padding-bottom: 82px;
  }

  .article-rail {
    position: static;
  }

  .article-rail ol {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 18px;
    max-height: none;
    overflow: visible;
  }
}

@media (max-width: 560px) {
  .reading-header .primary-nav a {
    min-width: 44px;
    padding: 0 8px;
    font-size: 0.78rem;
  }

  .collection-hero h1,
  .article-hero h1 {
    font-size: clamp(2.75rem, 13vw, 4rem);
  }

  .collection-modes {
    grid-template-columns: 1fr 1fr;
  }

  .project-reading-page .collection-hero {
    padding-top: 60px;
    padding-bottom: 32px;
  }

  .project-reading-page .project-explorer-heading {
    margin-bottom: 24px;
    padding-top: 16px;
  }

  .mode-link {
    min-height: 82px;
    padding-right: 14px;
    padding-left: 14px;
  }

  .mode-link + .mode-link {
    padding-left: 14px;
  }

  .branch-label {
    display: grid;
    gap: 10px;
    align-items: start;
  }

  .branch-title-line {
    display: grid;
    gap: 8px;
  }

  .scroll-hint {
    justify-self: end;
  }

  .project-node-list {
    grid-auto-columns: minmax(270px, 84vw);
  }

  .project-node-copy {
    min-height: 205px;
  }

  .collection-note {
    gap: 22px;
    padding: 28px 24px;
  }

  .article-copy {
    font-size: 1rem;
    line-height: 1.9;
  }

  .article-copy h2 {
    margin-top: 3.2em;
    padding-top: 14px;
    font-size: clamp(1.55rem, 7.2vw, 1.9rem);
  }

  .process-flow {
    padding: 20px;
  }

  .process-flow-list {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .process-flow-list li::after,
  .process-flow-list li:nth-child(3n)::after {
    top: auto;
    right: 50%;
    bottom: -27px;
    transform: translateX(50%);
    content: "↓";
  }

  .process-flow-list li:last-child::after {
    content: none;
  }

  .article-copy pre {
    white-space: pre-wrap;
    overflow-wrap: anywhere;
    word-break: break-word;
  }

  .article-table-scroll {
    overflow-x: auto;
    scrollbar-color: var(--qingju) var(--paper);
    scrollbar-width: thin;
  }

  .article-table-scroll-note {
    display: block;
    margin: 0 0 10px;
    color: var(--muted);
    font-size: 0.75rem;
    font-weight: 750;
  }

  .article-table-scroll table {
    display: table;
    width: max-content;
    max-width: none;
  }

  .article-rail ol {
    grid-template-columns: 1fr;
  }

  .article-copy blockquote,
  .evidence-note,
  .takeaway {
    padding: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .project-node,
  .project-node-cover img {
    transition: none;
  }
}