.page-about {
  --about-line: rgba(248, 249, 250, 0.07);
  --about-grid: 40px;
  --about-max: 1120px;
  --about-accent: var(--brand);
  position: relative;
  background-image:
    linear-gradient(to right, transparent calc(var(--about-grid) - 1px), var(--about-line) calc(var(--about-grid) - 1px)),
    linear-gradient(to bottom, transparent calc(var(--about-grid) - 1px), var(--about-line) calc(var(--about-grid) - 1px)),
    linear-gradient(90deg, rgba(230, 57, 70, 0.03), transparent 40%, rgba(17, 138, 178, 0.03));
  background-size: var(--about-grid) var(--about-grid), var(--about-grid) var(--about-grid), 100% 100%;
  color: var(--light);
  overflow-x: hidden;
}

.page-about .page-head,
.page-about .section,
.page-about .trust-strip,
.page-about .next-links {
  max-width: var(--about-max);
  margin-inline: auto;
  padding-inline: 20px;
}

.page-about .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  max-width: var(--about-max);
  margin: 0 auto;
  padding: 28px 20px 0;
  font-size: 13px;
  color: var(--gray);
}

.page-about .breadcrumbs a {
  color: var(--gray-light);
  text-decoration: none;
  transition: color var(--speed) var(--ease);
}

.page-about .breadcrumbs a:hover {
  color: var(--orange);
}

.page-about .breadcrumbs [aria-current="page"] {
  color: var(--brand);
}

.page-about .page-route {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  max-width: var(--about-max);
  margin: 12px auto 14px;
  padding-inline: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand);
}

.page-about .page-route::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--brand);
}

.page-about .page-title {
  max-width: var(--about-max);
  margin: 0 auto;
  padding-inline: 20px;
  font-family: var(--font-head);
  font-size: clamp(42px, 9vw, 76px);
  line-height: 0.98;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.page-about .page-title__sub {
  display: block;
  margin-top: 12px;
  font-family: var(--font-body);
  font-size: clamp(15px, 2.6vw, 20px);
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--gray-light);
  text-transform: none;
}

.page-about .page-intro {
  max-width: var(--about-max);
  margin: 18px auto 26px;
  padding: 0 20px 0 34px;
  border-left: 3px solid var(--brand);
  font-size: 15px;
  line-height: 1.9;
  color: var(--gray-light);
}

.page-about .toc {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  max-width: var(--about-max);
  margin: 0 auto 26px;
  padding: 22px 20px 20px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  position: relative;
}

.page-about .toc::before {
  content: "INDEX // 04";
  position: absolute;
  top: -8px;
  right: 44px;
  padding-inline: 10px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  padding-block: 2px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--orange);
}

.page-about .toc-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: var(--bg-card);
  border: 1px solid transparent;
  color: var(--light);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: border-color var(--speed) var(--ease), background var(--speed) var(--ease), transform var(--speed) var(--ease);
}

.page-about .toc-item span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--brand);
}

.page-about .toc-item:hover {
  border-color: var(--brand);
  background: var(--bg);
  transform: translateX(4px);
}

.page-about .section {
  padding-block: 44px 18px;
  position: relative;
}

.page-about .section-head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--border);
}

.page-about .section-index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
  writing-mode: vertical-rl;
  line-height: 1;
}

.page-about .section-title {
  font-family: var(--font-head);
  font-size: clamp(28px, 5vw, 46px);
  line-height: 1.05;
  margin: 0 0 6px;
  letter-spacing: 0.02em;
}

.page-about .section-sub {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--gray);
}

.page-about .sketch-statement {
  margin: 0 0 20px;
  padding: 22px 18px 22px 22px;
  border-left: 6px solid var(--brand);
  background: linear-gradient(90deg, rgba(230, 57, 70, 0.14), transparent 88%);
  font-family: var(--font-head);
  font-size: clamp(24px, 5vw, 38px);
  line-height: 1.2;
  letter-spacing: 0.03em;
  color: var(--light);
}

.page-about .sketch-grid {
  display: grid;
  gap: 14px;
}

.page-about .sketch-grid p {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--gray-light);
}

.page-about .sketch-grid p strong {
  color: var(--light);
}

.page-about .journey-visual {
  position: relative;
  margin-bottom: 30px;
}

.page-about .journey-banner,
.page-about .matrix-banner,
.page-about .team-banner {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  background: var(--bg-elev);
  border: 1px solid var(--border);
}

.page-about .journey-banner {
  max-height: 300px;
  filter: grayscale(0.25) contrast(1.05);
}

.page-about .journey-coord {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 10px;
  background: rgba(13, 13, 13, 0.78);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--orange);
}

.page-about .timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 24px;
  position: relative;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 6px;
  bottom: 6px;
  border-left: 2px dashed var(--border);
}

.page-about .timeline-item {
  position: relative;
  margin-bottom: 16px;
}

.page-about .timeline-dot {
  position: absolute;
  left: -24px;
  top: 22px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 4px var(--bg), 0 0 0 5px var(--border);
}

.page-about .timeline-card {
  padding: 16px 16px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--brand);
  transition: background var(--speed) var(--ease), transform var(--speed) var(--ease), border-color var(--speed) var(--ease);
}

.page-about .timeline-card:hover {
  background: var(--bg-elev);
  border-color: var(--gray);
  transform: translateX(4px);
}

.page-about .timeline-card--current {
  border-left-color: var(--brand);
  background: linear-gradient(90deg, rgba(230, 57, 70, 0.1), var(--bg-card) 70%);
}

.page-about .timeline-step {
  display: inline-block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--blue);
}

.page-about .timeline-card h3 {
  margin: 0 0 6px;
  font-size: 17px;
  line-height: 1.3;
}

.page-about .timeline-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray-light);
}

.page-about .matrix-wrap {
  display: grid;
  gap: 24px;
}

.page-about .matrix-visual {
  position: relative;
}

.page-about .matrix-banner {
  max-height: 400px;
  background: linear-gradient(135deg, rgba(230, 57, 70, 0.12), rgba(17, 138, 178, 0.12));
}

.page-about .matrix-visual-caption {
  margin: 10px 0 0;
  padding-left: 12px;
  border-left: 3px solid var(--green);
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray-light);
}

.page-about .matrix-list {
  border-top: 1px solid var(--border);
}

.page-about .matrix-row {
  display: grid;
  grid-template-columns: 40px 1fr auto;
  column-gap: 10px;
  row-gap: 6px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--border);
  transition: background var(--speed) var(--ease);
}

.page-about .matrix-row:hover {
  background: rgba(248, 249, 250, 0.02);
}

.page-about .matrix-idx {
  grid-column: 1;
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--green);
  padding-top: 3px;
}

.page-about .matrix-name {
  grid-column: 2;
  margin: 0;
  font-size: 16px;
  line-height: 1.3;
}

.page-about .matrix-desc {
  grid-column: 2 / 4;
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--gray-light);
}

.page-about .matrix-freq {
  grid-column: 3;
  grid-row: 1;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gray);
  text-align: right;
}

.page-about .matrix-bar {
  grid-column: 1 / 4;
  height: 6px;
  background: var(--bg-elev);
  border-radius: 0;
  overflow: hidden;
}

.page-about .matrix-bar i {
  display: block;
  height: 100%;
  width: var(--w, 60%);
  background: linear-gradient(90deg, var(--brand), var(--orange));
}

.page-about .matrix-note {
  display: flex;
  gap: 14px;
  margin-top: 22px;
  padding: 16px 18px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-left: 4px solid var(--sand);
}

.page-about .matrix-note__tag {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--sand);
}

.page-about .matrix-note p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--light);
}

.page-about .team-wrap {
  display: grid;
  gap: 24px;
}

.page-about .team-copy p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--gray-light);
}

.page-about .team-banner {
  max-height: 300px;
  background: linear-gradient(135deg, rgba(244, 162, 97, 0.1), rgba(13, 13, 13, 0.4));
}

.page-about .team-roles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .team-roles li {
  padding: 16px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-top: 3px solid var(--blue);
  transition: transform var(--speed) var(--ease), border-color var(--speed) var(--ease);
}

.page-about .team-roles li:nth-child(2) {
  border-top-color: var(--green);
}

.page-about .team-roles li:nth-child(3) {
  border-top-color: var(--orange);
}

.page-about .team-roles li:nth-child(4) {
  border-top-color: var(--sand);
}

.page-about .team-roles li:hover {
  transform: translateY(-3px);
  border-color: var(--gray);
}

.page-about .team-roles h3 {
  margin: 0 0 6px;
  font-size: 16px;
}

.page-about .team-roles p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--gray-light);
}

.page-about .trust-strip {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 30px;
  padding-block: 22px;
  border-top: 1px dashed var(--border);
  border-bottom: 1px dashed var(--border);
}

.page-about .trust-strip p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--light);
}

.page-about .trust-strip__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gray);
}

.page-about .next-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding-block: 32px 52px;
}

.page-about .next-links .btn {
  text-decoration: none;
}

@media (min-width: 720px) {
  .page-about .toc {
    grid-template-columns: repeat(4, 1fr);
    max-width: 760px;
    margin-left: auto;
    margin-right: 0;
  }

  .page-about .toc::before {
    right: 24px;
  }

  .page-about .sketch-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }

  .page-about .sketch-statement {
    max-width: 720px;
  }

  .page-about .matrix-wrap {
    grid-template-columns: 280px 1fr;
    align-items: start;
    gap: 26px;
  }

  .page-about .matrix-visual {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-about .team-wrap {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .page-about .team-copy {
    padding-right: 12px;
  }

  .page-about .team-roles {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .page-about .page-head,
  .page-about .section,
  .page-about .trust-strip,
  .page-about .next-links,
  .page-about .page-route,
  .page-about .page-title,
  .page-about .page-intro,
  .page-about .breadcrumbs {
    padding-inline: 40px;
  }

  .page-about .page-title {
    padding-top: 18px;
  }

  .page-about .page-intro {
    max-width: 680px;
    margin-left: 40px;
  }

  .page-about .section {
    padding-top: 60px;
  }

  .page-about .timeline {
    padding-left: 44px;
  }

  .page-about .timeline::before {
    left: 18px;
  }

  .page-about .timeline-dot {
    left: -44px;
  }

  .page-about .timeline-card {
    padding: 18px 22px;
  }

  .page-about .matrix-wrap {
    grid-template-columns: 360px 1fr;
  }

  .page-about .matrix-bar {
    grid-column: 2 / 4;
  }

  .page-about .team-wrap {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .page-about .trust-strip {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .page-about .trust-strip p {
    max-width: 640px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition: none !important;
    scroll-behavior: auto !important;
  }
}

.js .page-about [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}

.js .page-about [data-reveal][data-visible] {
  opacity: 1;
  transform: none;
}

.js .page-about [data-reveal] .matrix-bar i {
  width: 0;
  transition: width 0.9s var(--ease);
}

.js .page-about [data-reveal][data-visible] .matrix-bar i {
  width: var(--w, 60%);
}

@media (prefers-reduced-motion: reduce) {
  .js .page-about [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .js .page-about [data-reveal] .matrix-bar i {
    width: var(--w, 60%);
    transition: none;
  }
}

.page-about {
  --w: 1rem;
}