.page-about {
  position: relative;
  background: var(--ink);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: clip;
  padding-bottom: 48px;
}

.page-about::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: radial-gradient(rgba(201, 162, 39, 0.07) 1px, transparent 1px);
  background-size: 24px 24px;
}

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

.page-about .breadcrumb {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 22px 20px 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  list-style: none;
}

.page-about .breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-about .breadcrumb a:hover {
  color: var(--text-primary);
  border-color: var(--accent-gold);
}

.page-about .breadcrumb-sep {
  color: var(--line);
}

.page-about .breadcrumb-current {
  color: var(--text-primary);
}

.page-about__hero {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 40px 20px 48px;
}

.page-about__hero::before {
  content: "";
  position: absolute;
  top: 24px;
  right: 20px;
  width: min(38%, 320px);
  height: 2px;
  background: var(--accent-gold);
  opacity: 0.8;
  z-index: 0;
}

.page-about__hero::after {
  content: "";
  position: absolute;
  top: 12px;
  left: -60px;
  width: 180px;
  height: 180px;
  background: repeating-linear-gradient(-45deg, transparent 0 8px, rgba(27, 94, 74, 0.45) 8px 10px);
  pointer-events: none;
  opacity: 0.55;
  z-index: 0;
}

.page-about__hero-deco {
  display: none;
}

.page-about__hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
}

.page-about__hero-copy {
  min-width: 0;
}

.page-about__label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-gold);
  border: 1px solid var(--line);
  background: var(--ink);
  padding: 5px 12px;
}

.page-about__label::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--accent-gold);
  transform: rotate(45deg);
  flex: 0 0 auto;
}

.page-about__hero h1 {
  margin: 16px 0 18px;
  font-size: clamp(28px, 6vw, 56px);
  font-weight: 200;
  line-height: 1.1;
  letter-spacing: -0.015em;
  max-width: 12em;
}

.page-about__h1-dot {
  color: var(--accent-gold);
  font-weight: 300;
}

.page-about__hero-lead {
  margin: 0 0 14px;
  max-width: 44em;
  font-size: 16px;
  color: var(--text-primary);
}

.page-about__hero-lead strong {
  color: var(--accent-gold);
  font-weight: 600;
}

.page-about__hero-note {
  margin: 0 0 22px;
  max-width: 44em;
  font-size: 14px;
  color: var(--text-secondary);
}

.page-about__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.page-about__hero-media {
  position: relative;
}

.page-about__hero-img {
  width: 100%;
  height: auto;
  display: block;
  border: 2px solid var(--line);
  box-shadow: 10px 10px 0 rgba(0, 0, 0, 0.45);
}

.page-about__hero-tag {
  position: absolute;
  left: 8px;
  bottom: 8px;
  background: var(--ink);
  color: var(--text-primary);
  border: 2px solid var(--line);
  padding: 4px 12px;
  font-size: 12px;
  letter-spacing: 0.12em;
}

.page-about__section {
  position: relative;
  z-index: 1;
  max-width: 1120px;
  margin: 34px 16px 28px;
  padding: 36px 20px 40px;
  background: var(--panel);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-about__head {
  margin-bottom: 30px;
}

.page-about__head h2 {
  font-size: clamp(24px, 4vw, 40px);
  font-weight: 200;
  line-height: 1.15;
  margin: 14px 0 8px;
  letter-spacing: -0.01em;
}

.page-about__head-sub {
  margin: 0;
  color: var(--text-secondary);
  font-size: 15px;
}

.page-about__brand-grid {
  display: grid;
  gap: 24px;
}

.page-about__brand-copy {
  min-width: 0;
}

.page-about__brand-copy p {
  margin: 0 0 14px;
  font-size: 15px;
  color: var(--text-secondary);
}

.page-about__brand-copy strong {
  color: var(--text-primary);
}

.page-about__brand-aside {
  background: var(--panel-2);
  border: 2px solid var(--line);
  padding: 22px;
}

.page-about__brand-aside h3 {
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin: 0 0 14px;
}

.page-about__brand-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-about__brand-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
}

.page-about__brand-list li::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--accent-gold);
  transform: rotate(45deg);
  flex: 0 0 auto;
}

.page-about__brand-note {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.page-about__brand-num {
  font-size: 38px;
  font-weight: 800;
  color: var(--accent-gold);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.page-about__brand-note p {
  margin: 0;
  font-size: 14px;
  color: var(--text-secondary);
}

.page-about__timeline {
  background: var(--panel-2);
}

.page-about__tl-layout {
  display: grid;
  grid-template-columns: 1fr;
}

.page-about__tl-rail {
  display: none;
}

.page-about__tl-cards {
  display: grid;
  gap: 16px;
}

.page-about__tl-card {
  border: 2px solid var(--line);
  background: var(--panel);
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.5);
  transition: transform 0.24s var(--ease), border-color 0.24s var(--ease), box-shadow 0.24s var(--ease);
}

.page-about__tl-card:hover {
  transform: translateX(4px) translateY(-2px);
  border-color: var(--brand-highlight);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.4);
}

.page-about__tl-trigger {
  display: grid;
  grid-template-columns: 76px 1fr auto;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 16px 14px;
  background: transparent;
  border: 0;
  color: var(--text-primary);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.page-about__tl-year {
  font-size: 32px;
  font-weight: 800;
  color: var(--accent-gold);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.page-about__tl-main {
  min-width: 0;
}

.page-about__tl-name {
  display: block;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-about__tl-brief {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 2px;
  line-height: 1.4;
}

.page-about__tl-icon {
  width: 24px;
  height: 24px;
  position: relative;
  border: 2px solid var(--line);
  background: var(--panel-2);
  flex: 0 0 auto;
}

.page-about__tl-icon::before,
.page-about__tl-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: var(--accent-gold);
}

.page-about__tl-icon::before {
  width: 12px;
  height: 2px;
}

.page-about__tl-icon::after {
  width: 2px;
  height: 12px;
}

.page-about__tl-card .accordion-panel-inner {
  padding: 4px 18px 20px 76px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.75;
}

.page-about__tl-figure {
  margin: 24px 0 0;
  border: 2px solid var(--line);
  background: var(--panel);
  padding: 14px;
}

.page-about__tl-figure img {
  width: 100%;
  height: auto;
  display: block;
}

.page-about__tl-figure figcaption {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--text-secondary);
}

.page-about__workflow-body {
  display: grid;
  gap: 26px;
}

.page-about__workflow-steps {
  min-width: 0;
}

.page-about__step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about__step {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 2px 14px;
  border: 2px solid var(--line);
  background: var(--panel-2);
  padding: 16px;
  position: relative;
}

.page-about__step::after {
  content: "↓";
  position: absolute;
  left: 28px;
  bottom: -20px;
  color: var(--accent-gold);
  font-size: 14px;
  font-weight: 700;
  z-index: 2;
}

.page-about__step:last-child::after {
  display: none;
}

.page-about__step-num {
  grid-row: 1 / 3;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--accent-gold);
}

.page-about__step h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
}

.page-about__step p {
  margin: 4px 0 0;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

.page-about__workflow-figure {
  margin: 0;
  border: 2px solid var(--line);
  background: var(--panel-2);
  padding: 14px;
  align-self: center;
}

.page-about__workflow-figure img {
  width: 100%;
  height: auto;
  display: block;
}

.page-about__workflow-figure figcaption {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--text-secondary);
}

.page-about__workflow-timing {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 24px;
}

.page-about__timing-item {
  background: var(--brand);
  border: 2px solid var(--line);
  padding: 18px 10px;
  text-align: center;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.4);
}

.page-about__timing-item .data-value {
  display: block;
  font-size: 26px;
  font-weight: 800;
  color: var(--accent-gold);
  line-height: 1.1;
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}

.page-about__timing-item .data-label {
  display: block;
  font-size: 12px;
  color: var(--text-primary);
  letter-spacing: 0.04em;
}

.page-about__principles-grid {
  display: grid;
  gap: 16px;
}

.page-about__principle {
  position: relative;
  border: 2px solid var(--line);
  background: var(--panel-2);
  padding: 22px 20px;
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.45);
}

.page-about__principle::before {
  content: "";
  position: absolute;
  right: 12px;
  top: 12px;
  width: 44px;
  height: 44px;
  background: repeating-linear-gradient(-45deg, transparent 0 5px, rgba(61, 66, 77, 0.55) 5px 7px);
  pointer-events: none;
}

.page-about__principle-mark {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
  color: var(--accent-gold);
  border: 1px solid var(--line);
  background: var(--ink);
  padding: 3px 10px;
  margin-bottom: 14px;
}

.page-about__principle h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
}

.page-about__principle p {
  margin: 0;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.page-about__archive {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 24px;
  border: 2px solid var(--line);
  background: var(--ink);
  padding: 20px;
}

.page-about__archive-copy {
  min-width: 0;
}

.page-about__archive h3 {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 700;
}

.page-about__archive p {
  margin: 0;
  font-size: 14px;
  color: var(--text-secondary);
}

.page-about__archive-tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about__archive-tags a {
  display: inline-block;
  border: 2px solid var(--line);
  background: var(--panel-2);
  color: var(--text-primary);
  padding: 6px 14px;
  font-size: 13px;
  text-decoration: none;
  letter-spacing: 0.03em;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-about__archive-tags a:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  transform: translateY(-2px);
}

.page-about__coverage-grid {
  display: grid;
  gap: 28px;
}

.page-about__coverage-copy {
  min-width: 0;
}

.page-about__coverage-copy p {
  margin: 0 0 14px;
  font-size: 15px;
  color: var(--text-secondary);
}

.page-about__coverage-table {
  width: 100%;
}

.page-about__coverage-table table {
  width: 100%;
  border-collapse: collapse;
  background: var(--panel-2);
  border: 2px solid var(--line);
}

.page-about__coverage-table th,
.page-about__coverage-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

.page-about__coverage-table tr:last-child th,
.page-about__coverage-table tr:last-child td {
  border-bottom: 0;
}

.page-about__coverage-table th {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.03em;
  background: var(--ink);
  white-space: nowrap;
}

.page-about__coverage-table td {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}

.page-about__resources {
  position: relative;
  z-index: 1;
  max-width: 1120px;
  margin: 32px 16px 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 12px;
}

.page-about__resources a {
  display: block;
  padding: 14px 16px;
  border: 2px solid var(--line);
  background: var(--panel);
  color: var(--text-primary);
  text-decoration: none;
  font-size: 14px;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease), background 0.2s var(--ease);
}

.page-about__resources a:hover {
  border-color: var(--accent-gold);
  background: var(--panel-2);
  transform: translateY(-3px);
}

@media (min-width: 720px) {
  .page-about__hero {
    padding: 52px 24px 60px;
  }

  .page-about__section {
    margin: 40px 24px 32px;
    padding: 48px 36px;
  }

  .page-about__resources {
    margin: 40px 24px 0;
  }

  .page-about__brand-grid {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: start;
  }

  .page-about__workflow-body {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .page-about__coverage-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .page-about__principles-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 860px) {
  .page-about__hero-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 48px;
    align-items: center;
  }

  .page-about__hero-deco {
    display: block;
    position: absolute;
    right: 0;
    bottom: 0;
    width: 160px;
    height: 160px;
    z-index: 0;
    opacity: 0.75;
    pointer-events: none;
  }

  .page-about__hero-deco svg {
    display: block;
    width: 100%;
    height: auto;
  }

  .page-about__tl-layout {
    grid-template-columns: 64px 1fr;
    gap: 0 24px;
  }

  .page-about__tl-rail {
    display: grid;
    grid-template-rows: repeat(6, auto);
    justify-items: center;
    align-items: start;
    gap: 30px;
    padding-top: 36px;
  }

  .page-about__tl-rail-dot {
    width: 14px;
    height: 14px;
    border-radius: 999px;
    background: var(--line);
    box-shadow: 0 0 0 3px var(--ink), 0 0 0 4px var(--line);
  }

  .page-about__tl-rail-dot.is-gold {
    background: var(--accent-gold);
  }

  .page-about__tl-rail-dot.is-green {
    background: var(--brand-highlight);
  }

  .page-about__tl-rail-dot.is-red {
    background: var(--signal-red);
  }

  .page-about__tl-cards {
    display: block;
  }

  .page-about__tl-card {
    margin-bottom: 30px;
  }
}

@media (min-width: 1080px) {
  .page-about__section,
  .page-about__resources {
    margin-left: auto;
    margin-right: auto;
  }

  .page-about__principles-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about__hero {
    padding-top: 64px;
    padding-bottom: 72px;
  }
}