.page-about {
  --about-side: 168px;
  background: var(--paper);
  color: var(--ink);
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  position: relative;
  background: var(--ink);
  color: var(--on-dark);
  padding: 26px 0 52px;
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(to right, var(--on-dark-line-2) 0 1px, transparent 1px 68px),
    repeating-linear-gradient(to bottom, var(--on-dark-line-2) 0 1px, transparent 1px 68px);
  pointer-events: none;
}

.page-about .about-hero .shell {
  position: relative;
  z-index: 1;
}

.page-about .about-hero__crumbs {
  margin-bottom: 28px;
}

.page-about .about-hero__crumbs,
.page-about .about-hero__crumbs a {
  color: var(--on-dark-soft);
}

.page-about .about-hero__crumbs a:hover {
  color: var(--cyan);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-about .about-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6.2vw, 54px);
  line-height: 1.14;
  letter-spacing: -.01em;
  margin: 14px 0 0;
  color: var(--on-dark);
  max-width: 20ch;
}

.page-about .about-hero__lede {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--on-dark-soft);
}

.page-about .about-hero__stamp {
  display: flex;
  flex-direction: column;
  padding-top: 4px;
}

.page-about .about-hero__big {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 78px;
  line-height: .88;
  letter-spacing: -.03em;
  color: var(--on-dark);
}

.page-about .about-hero__bignote {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-about .about-hero__bigsub {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--on-dark-soft);
}

/* ---------- Section shell ---------- */
.page-about .about-sec {
  padding: 46px 0;
  border-top: 1px solid var(--paper-2);
}

.page-about .about-hero + .about-sec {
  border-top: 0;
}

.page-about .about-sec__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .about-sec__side {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-about .about-sec__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--wine);
  display: block;
  line-height: 1.2;
}

.page-about .about-sec__tag {
  display: block;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--idx);
  line-height: 1.2;
}

.page-about .about-sec h2,
.page-about .about-cta h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.6vw, 36px);
  line-height: 1.22;
  letter-spacing: -.005em;
  margin: 0 0 14px;
  max-width: 26ch;
}

.page-about .about-sec__body p {
  font-size: 16px;
  line-height: 1.85;
  margin: 0 0 1.05em;
  color: var(--ink-2);
}

.page-about .about-lead {
  font-size: 17px !important;
  color: var(--ink) !important;
  max-width: 58ch;
  margin-bottom: 1.3em !important;
}

.page-about .about-note {
  margin-top: 22px !important;
  padding-top: 16px;
  border-top: 1px solid var(--paper-2);
  font-size: 15px !important;
  color: var(--idx) !important;
}

.page-about .about-link {
  color: var(--cyan-deep);
  border-bottom: 1px solid rgba(14, 107, 107, .35);
  padding-bottom: 1px;
}

.page-about .about-link:hover {
  border-bottom-color: var(--cyan-deep);
}

/* ---------- Figure ---------- */
.page-about .about-fig {
  margin: 0;
}

.page-about .about-fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- Two column blocks ---------- */
.page-about .about-cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin: 22px 0 0;
}

.page-about .about-cols__text p:last-child {
  margin-bottom: 0;
}

/* ---------- Roles ---------- */
.page-about .about-roles {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}

.page-about .about-roles__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--paper-2);
}

.page-about .about-roles__item:first-child {
  border-top: 1px solid var(--paper-2);
}

.page-about .about-roles__n {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  color: var(--wine);
}

.page-about .about-roles__k {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.page-about .about-roles__d {
  font-size: 15px;
  line-height: 1.8;
  color: var(--idx);
}

/* ---------- Flow ---------- */
.page-about .about-flow {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  position: relative;
}

.page-about .about-flow::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 18px;
  bottom: 22px;
  width: 1px;
  background: var(--paper-2);
}

.page-about .about-flow__step {
  position: relative;
  padding-left: 34px;
  margin-bottom: 10px;
}

.page-about .about-flow__step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 19px;
  width: 13px;
  height: 13px;
  box-sizing: border-box;
  background: var(--paper);
  border: 2px solid var(--wine);
  transform: rotate(45deg);
}

.page-about .about-flow__box {
  background: var(--cold);
  border: 1px solid var(--paper-2);
}

.page-about .about-flow summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
}

.page-about .about-flow summary::-webkit-details-marker {
  display: none;
}

.page-about .about-flow__i {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--idx);
  flex: none;
}

.page-about .about-flow__name {
  flex: 1 1 auto;
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.page-about .about-flow__mark {
  flex: none;
  position: relative;
  width: 12px;
  height: 12px;
}

.page-about .about-flow__mark::before,
.page-about .about-flow__mark::after {
  content: "";
  position: absolute;
  background: var(--wine);
  transition: transform .2s var(--ease);
}

.page-about .about-flow__mark::before {
  left: 0;
  top: 5px;
  width: 12px;
  height: 2px;
}

.page-about .about-flow__mark::after {
  left: 5px;
  top: 0;
  width: 2px;
  height: 12px;
}

.page-about .about-flow__box[open] .about-flow__mark::after {
  transform: scaleY(0);
}

.page-about .about-flow__body {
  padding: 14px 18px 18px;
  border-top: 1px solid var(--paper-2);
}

.page-about .about-flow__body p {
  font-size: 15px;
  line-height: 1.82;
  color: var(--ink-2);
  margin: 0 0 12px;
}

.page-about .about-flow__out {
  margin: 0 !important;
  padding: 8px 0 0 14px;
  border-left: 2px solid var(--amber);
  font-size: 13.5px !important;
  color: var(--ink-2) !important;
}

.page-about .about-flow__outk {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--amber-ink);
  margin-right: 10px;
}

/* ---------- Quote + accordion ---------- */
.page-about .about-quote {
  margin: 22px 0 0;
  padding: 22px 24px;
  background: var(--cold);
  border-left: 4px solid var(--wine);
}

.page-about .about-quote p {
  margin: 0 !important;
  font-size: 16px !important;
  line-height: 1.9 !important;
  color: var(--ink) !important;
}

.page-about .about-mark {
  display: inline-block;
  padding: 1px 7px;
  background: rgba(242, 169, 59, .22);
  border-bottom: 2px solid var(--amber);
  font-weight: 700;
  color: var(--ink);
}

.page-about .about-acc {
  margin-top: 24px;
  border-top: 1px solid var(--paper-2);
}

.page-about .about-acc details {
  border-bottom: 1px solid var(--paper-2);
}

.page-about .about-acc summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-about .about-acc summary::-webkit-details-marker {
  display: none;
}

.page-about .about-acc summary::before {
  content: "";
  flex: none;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--wine);
  border-bottom: 2px solid var(--wine);
  transform: rotate(-45deg);
  transition: transform .2s var(--ease);
}

.page-about .about-acc details[open] summary::before {
  transform: rotate(45deg);
}

.page-about .about-acc__body {
  padding: 0 0 18px 20px;
}

.page-about .about-acc__body p {
  margin: 0 !important;
  font-size: 15px !important;
  line-height: 1.85 !important;
  color: var(--ink-2) !important;
}

/* ---------- Dark version block ---------- */
.page-about .about-sec--dark {
  background: var(--ink);
  color: var(--on-dark);
  border-top: 0;
  position: relative;
  overflow: hidden;
}

.page-about .about-sec--dark::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(var(--on-dark-line-2) 1px, transparent 1px);
  background-size: 5px 5px;
  pointer-events: none;
}

.page-about .about-sec--dark .shell {
  position: relative;
  z-index: 1;
}

.page-about .about-sec--dark h2 {
  color: var(--on-dark);
}

.page-about .about-sec--dark .about-sec__body p {
  color: var(--on-dark-soft);
}

.page-about .about-sec--dark .about-lead {
  color: var(--on-dark) !important;
}

.page-about .about-sec--dark .about-sec__num {
  color: var(--cyan);
}

.page-about .about-sec--dark .about-sec__tag {
  color: var(--on-dark-faint);
}

.page-about .about-sec--dark .about-link {
  color: var(--cyan);
  border-bottom-color: rgba(53, 214, 208, .45);
}

.page-about .about-sec--dark .about-link:hover {
  border-bottom-color: var(--cyan);
}

.page-about .about-ver-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 28px;
}

.page-about .about-tl {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about .about-tl::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 10px;
  bottom: 16px;
  width: 1px;
  background: var(--on-dark-line);
}

.page-about .about-tl__item {
  position: relative;
  padding: 0 0 22px 28px;
}

.page-about .about-tl__item::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 8px;
  width: 9px;
  height: 9px;
  margin-left: -4px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-about .about-tl__ver {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-about .about-tl__title {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.3;
  margin: 5px 0 7px;
  color: var(--on-dark);
  transition: color .2s var(--ease);
}

.page-about .about-tl__more {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--on-dark-soft);
}

/* ---------- Stats ---------- */
.page-about .about-stats {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--paper-2);
  border: 1px solid var(--paper-2);
}

.page-about .about-stats li {
  background: var(--cold);
  padding: 18px 20px;
}

.page-about .about-stats__n {
  display: block;
  font-family: var(--font-mono);
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  color: var(--wine);
}

.page-about .about-stats__k {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--idx);
}

/* ---------- CTA ---------- */
.page-about .about-cta {
  position: relative;
  overflow: hidden;
  background: var(--wine);
  color: var(--on-dark);
  padding: 46px 0 52px;
}

.page-about .about-cta::before {
  content: "";
  position: absolute;
  right: -70px;
  top: -90px;
  width: 300px;
  height: 300px;
  border: 1px solid rgba(243, 238, 228, .16);
  transform: rotate(45deg);
  pointer-events: none;
}

.page-about .about-cta::after {
  content: "";
  position: absolute;
  left: -40px;
  bottom: -110px;
  width: 220px;
  height: 220px;
  border: 1px solid rgba(243, 238, 228, .1);
  transform: rotate(45deg);
  pointer-events: none;
}

.page-about .about-cta .shell {
  position: relative;
  z-index: 1;
}

.page-about .about-cta__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-about .about-cta__label {
  color: rgba(243, 238, 228, .72);
}

.page-about .about-cta__label::before {
  background: rgba(243, 238, 228, .5);
}

.page-about .about-cta h2 {
  color: var(--on-dark);
  margin-top: 12px;
  max-width: 30ch;
}

.page-about .about-cta__lede {
  margin: 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(243, 238, 228, .8);
}

.page-about .about-cta__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-cta__btn {
  background: var(--paper);
  color: var(--wine);
  border-color: var(--paper);
}

.page-about .about-cta__btn:hover {
  background: var(--cold);
  border-color: var(--cold);
}

.page-about .about-cta__btn2 {
  color: var(--on-dark);
  border-color: rgba(243, 238, 228, .5);
}

.page-about .about-cta__btn2:hover {
  color: var(--on-dark);
  border-color: var(--on-dark);
}

/* ---------- Responsive ---------- */
@media (min-width: 640px) {
  .page-about .about-stats {
    grid-template-columns: 1fr 1fr;
  }

  .page-about .about-roles__item {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 4px 20px;
    align-items: baseline;
  }

  .page-about .about-roles__n {
    grid-row: span 2;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    padding: 34px 0 68px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1fr) 240px;
    gap: 56px;
    align-items: end;
  }

  .page-about .about-hero__big {
    font-size: 116px;
  }

  .page-about .about-hero__stamp {
    border-left: 1px solid var(--on-dark-line);
    padding-left: 24px;
  }

  .page-about .about-sec {
    padding: 62px 0;
  }

  .page-about .about-sec__grid {
    grid-template-columns: var(--about-side) minmax(0, 1fr);
    gap: 48px;
  }

  .page-about .about-sec__side {
    display: block;
    padding-top: 6px;
  }

  .page-about .about-sec__side::after {
    content: "";
    display: block;
    width: 1px;
    height: 46px;
    margin-top: 16px;
    background: linear-gradient(to bottom, var(--wine), transparent);
  }

  .page-about .about-sec--dark .about-sec__side::after {
    background: linear-gradient(to bottom, var(--cyan), transparent);
  }

  .page-about .about-cols {
    grid-template-columns: minmax(0, 1fr) minmax(0, .82fr);
    gap: 40px;
    align-items: start;
  }

  .page-about .about-cols--rev {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1fr);
  }

  .page-about .about-ver-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    gap: 52px;
    align-items: start;
  }

  .page-about .about-roles__item {
    grid-template-columns: 76px 132px minmax(0, 1fr);
    gap: 20px;
    padding: 20px 0;
  }

  .page-about .about-roles__n {
    grid-row: auto;
    font-size: 32px;
  }

  .page-about .about-roles__k {
    align-self: baseline;
  }

  .page-about .about-cta {
    padding: 62px 0 68px;
  }

  .page-about .about-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 56px;
    align-items: center;
  }

  .page-about .about-cta__acts {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (hover: hover) and (min-width: 900px) {
  .page-about .about-tl__more {
    opacity: 0;
    transform: translateY(-5px);
    transition: opacity .22s var(--ease), transform .22s var(--ease);
  }

  .page-about .about-tl__item:hover .about-tl__more,
  .page-about .about-tl__item:focus-within .about-tl__more {
    opacity: 1;
    transform: none;
  }

  .page-about .about-tl__item:hover .about-tl__title,
  .page-about .about-tl__item:focus-within .about-tl__title {
    color: var(--cyan);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-tl__more {
    transition: none;
  }

  .page-about .about-flow__mark::before,
  .page-about .about-flow__mark::after,
  .page-about .about-acc summary::before {
    transition: none;
  }
}