.page-about {
  --about-line: rgba(180, 134, 76, 0.45);
  background: var(--c-bg);
  color: var(--c-ink);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.8;
  overflow-x: hidden;
}

.page-about .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 18px 0 0;
  list-style: none;
  font-size: 15px;
  color: var(--c-ink-soft);
}
.page-about .breadcrumb li {
  display: flex;
  align-items: center;
  gap: 6px;
}
.page-about .breadcrumb li + li::before {
  content: "›";
  color: var(--c-line);
}
.page-about .breadcrumb a {
  color: var(--c-ink-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--c-line-soft);
}
.page-about .breadcrumb a:hover,
.page-about .breadcrumb a:focus-visible {
  color: var(--c-accent);
  border-bottom-color: var(--c-accent);
}
.page-about .breadcrumb [aria-current="page"] {
  color: var(--c-head);
  font-weight: 700;
}

.page-about .about-cover {
  padding: clamp(18px, 4vw, 36px) 0 0;
}
.page-about .about-cover-box {
  position: relative;
  padding: clamp(26px, 5vw, 64px) clamp(20px, 4vw, 56px);
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-paper);
  overflow: hidden;
}
.page-about .about-cover-box::before {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px dashed var(--c-line-soft);
  border-radius: calc(var(--radius) - 8px);
  pointer-events: none;
}
.page-about .about-cover-top {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: clamp(16px, 3vw, 28px);
}
.page-about .about-cover-top .index-no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--c-accent);
}
.page-about .display-title {
  position: relative;
  margin: 0 0 clamp(18px, 3vw, 28px);
  font-size: clamp(32px, 6.2vw, 62px);
  font-weight: 300;
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--c-head);
  max-width: 18ch;
}
.page-about .about-lead {
  position: relative;
  margin: 0 0 16px;
  max-width: 62ch;
  font-size: clamp(18px, 2.2vw, 20px);
  line-height: 1.85;
  color: var(--c-ink);
}
.page-about .about-lead-2 {
  position: relative;
  margin: 0;
  max-width: 60ch;
  font-size: var(--fs-small);
  line-height: 1.85;
  color: var(--c-ink-soft);
}

.page-about .about-index {
  margin-top: clamp(22px, 4vw, 36px);
}
.page-about .about-index-inner {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}
.page-about .about-index a {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 10px 16px;
  border: 1px solid var(--c-line-soft);
  border-radius: 999px;
  background: var(--c-surface);
  color: var(--c-head);
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  transition: background var(--dur), border-color var(--dur), color var(--dur);
}
.page-about .about-index a:hover,
.page-about .about-index a:focus-visible {
  background: var(--c-soft);
  border-color: var(--c-hot);
}
.page-about .about-idx-no {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  color: var(--c-accent);
}

.page-about .about-cover-photo {
  margin: clamp(24px, 4vw, 44px) 0 0;
}
.page-about .about-cover-photo img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--c-line-soft);
}
.page-about .about-cover-photo figcaption,
.page-about .about-photo figcaption {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-ink-soft);
}

.page-about .about-chapter {
  padding: clamp(46px, 9vw, 104px) 0 0;
}
.page-about .about-chapter-alt {
  margin-top: clamp(40px, 7vw, 88px);
  padding-bottom: clamp(40px, 7vw, 80px);
  background: linear-gradient(180deg, var(--c-soft) 0%, rgba(249, 225, 210, 0) 100%);
}
.page-about .chapter-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding-bottom: 14px;
  margin-bottom: clamp(20px, 4vw, 36px);
  border-bottom: 1px solid var(--c-line-soft);
}
.page-about .chapter-head .index-no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--c-accent);
  padding-top: 10px;
}
.page-about .chapter-head h2 {
  margin: 0;
  max-width: 26ch;
  font-size: clamp(23px, 3.4vw, 36px);
  font-weight: 700;
  line-height: 1.36;
  color: var(--c-head);
}
.page-about .chapter-lead {
  margin: 0 0 clamp(22px, 4vw, 36px);
  max-width: 60ch;
  color: var(--c-ink);
}

.page-about .about-split {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}
.page-about .about-split-main p {
  margin: 0 0 16px;
  max-width: 62ch;
}
.page-about .about-split-main p:last-of-type {
  margin-bottom: 0;
}

.page-about .net-facts {
  display: grid;
  gap: 2px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
}
.page-about .net-facts li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--c-line-soft);
}
.page-about .net-num {
  flex: 0 0 auto;
  min-width: 4.2em;
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--c-accent);
}
.page-about .net-label {
  color: var(--c-ink);
}

.page-about .net-figure {
  padding: clamp(14px, 3vw, 22px);
  background: var(--c-surface);
  border: 1px solid var(--c-line-soft);
  border-radius: var(--radius);
}
.page-about .net-figure svg {
  display: block;
  width: 100%;
  height: auto;
}
.page-about .net-caption {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-ink-soft);
}

.page-about .about-photo {
  margin: clamp(26px, 4vw, 44px) 0 0;
}
.page-about .about-photo img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius);
}
.page-about .about-photo-narrow {
  max-width: 720px;
}

.page-about .chronicle {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .chronicle::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 10px;
  bottom: 14px;
  width: 2px;
  background: repeating-linear-gradient(
    to bottom,
    var(--c-line) 0 6px,
    transparent 6px 13px
  );
}
.page-about .chronicle-item {
  position: relative;
  padding-left: 40px;
  padding-bottom: clamp(20px, 4vw, 34px);
}
.page-about .chronicle-item::before {
  content: "";
  position: absolute;
  left: 1px;
  top: 8px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--c-accent);
  border: 3px solid var(--c-bg);
  box-shadow: 0 0 0 1px var(--c-line);
}
.page-about .chronicle-stage {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-accent);
}
.page-about .chronicle-item summary {
  display: flex;
  align-items: baseline;
  gap: 10px;
  cursor: pointer;
  list-style: none;
  font-size: clamp(18px, 2.4vw, 22px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--c-head);
}
.page-about .chronicle-item summary::-webkit-details-marker {
  display: none;
}
.page-about .chronicle-item summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-weight: 400;
  color: var(--c-accent);
}
.page-about .chronicle-item details[open] summary::after {
  content: "–";
}
.page-about .chronicle-item summary:focus-visible {
  outline: 3px solid var(--c-hot);
  outline-offset: 4px;
  border-radius: 4px;
}
.page-about .chronicle-item details p {
  margin: 10px 0 0;
  max-width: 64ch;
  color: var(--c-ink-soft);
}

.page-about .team-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(20px, 4vw, 32px);
  padding: 0;
  list-style: none;
}
.page-about .team-tabs a {
  display: inline-block;
  padding: 8px 15px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: var(--c-soft);
  color: var(--c-head);
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  transition: background var(--dur), border-color var(--dur);
}
.page-about .team-tabs a:hover,
.page-about .team-tabs a:focus-visible {
  background: var(--c-surface);
  border-color: var(--c-hot);
}

.page-about .team-list {
  border-top: 1px solid var(--c-line-soft);
}
.page-about .team-row {
  display: grid;
  gap: 4px 24px;
  padding: clamp(18px, 3vw, 26px) 0;
  border-bottom: 1px dashed var(--c-line-soft);
}
.page-about .team-tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-accent);
}
.page-about .team-row h3 {
  margin: 0;
  font-size: 20px;
  line-height: 1.4;
  color: var(--c-head);
}
.page-about .team-row p {
  margin: 0;
  color: var(--c-ink-soft);
}
.page-about .team-row .team-lead {
  color: var(--c-ink);
}

.page-about .eco-grid {
  display: grid;
  gap: clamp(14px, 3vw, 22px);
}
.page-about .eco-card {
  padding: clamp(18px, 3vw, 26px);
  background: var(--c-surface);
  border: 1px solid var(--c-line-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow-paper);
}
.page-about .eco-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--c-accent);
}
.page-about .eco-card h3 {
  margin: 6px 0 8px;
  font-size: 19px;
  color: var(--c-head);
}
.page-about .eco-card p {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: var(--c-ink-soft);
}

.page-about .quality-block {
  margin-top: clamp(26px, 4vw, 44px);
  padding: clamp(20px, 4vw, 34px);
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
}
.page-about .quality-title {
  margin: 0 0 18px;
  font-size: clamp(19px, 2.6vw, 23px);
  color: var(--c-head);
}
.page-about .quality-list {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .quality-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}
.page-about .quality-list p {
  margin: 0;
  color: var(--c-ink-soft);
}
.page-about .quality-list strong {
  color: var(--c-ink);
}

.page-about .member-panel {
  padding: clamp(24px, 5vw, 52px);
  border-radius: var(--radius);
  background: var(--c-head);
  color: var(--c-ondark);
}
.page-about .member-panel-intro {
  padding-bottom: clamp(18px, 3vw, 26px);
  border-bottom: 1px solid rgba(255, 246, 229, 0.24);
}
.page-about .member-kicker {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-hot);
}
.page-about .member-panel-intro h3 {
  margin: 0 0 12px;
  font-size: clamp(22px, 3.2vw, 30px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--c-ondark);
}
.page-about .member-panel-intro p {
  margin: 0;
  max-width: 62ch;
  color: rgba(255, 246, 229, 0.82);
}
.page-about .member-list {
  display: grid;
  gap: clamp(16px, 3vw, 26px);
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
}
.page-about .member-list h4 {
  margin: 0 0 6px;
  font-size: 18px;
  color: var(--c-hot);
}
.page-about .member-list p {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: rgba(255, 246, 229, 0.82);
}

.page-about .about-next {
  margin-top: clamp(26px, 4vw, 44px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--c-line-soft);
}
.page-about .about-next-lead {
  margin: 0 0 18px;
  max-width: 56ch;
  color: var(--c-ink-soft);
}
.page-about .about-next-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 760px) {
  .page-about .team-row {
    grid-template-columns: 130px minmax(0, 1fr);
  }
  .page-about .team-tag {
    grid-row: 1 / span 3;
    padding-top: 4px;
  }
  .page-about .quality-list {
    gap: 20px;
  }
  .page-about .member-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-split {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: start;
  }
  .page-about .eco-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .about-cover-box::before {
    inset: 14px;
  }
  .page-about .chronicle-item {
    padding-left: 52px;
  }
  .page-about .chronicle::before {
    left: 10px;
  }
  .page-about .chronicle-item::before {
    left: 3px;
  }
}

@media (min-width: 1100px) {
  .page-about .member-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-index a,
  .page-about .team-tabs a {
    transition: none;
  }
}
<<<END>>>