.page-about {
  display: block;
  --ab-gold-line: rgba(201, 162, 39, .55);
  --ab-dash: rgba(199, 203, 209, .28);
}

.page-about img {
  max-width: 100%;
  height: auto;
}

.page-about .media-frame {
  margin: 0;
  position: relative;
  overflow: hidden;
}

.page-about .media-ratio-16x9 { aspect-ratio: 16 / 9; }
.page-about .media-ratio-4x3 { aspect-ratio: 4 / 3; }

.page-about .media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-about .media-cap {
  position: absolute;
  left: 0;
  bottom: 0;
  margin: 0;
  padding: 8px 14px;
  background: rgba(11, 11, 13, .78);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--silver);
  border-top: 1px solid var(--ab-gold-line);
}

/* breadcrumbs */
.page-about .about-crumbs-wrap { padding-top: 24px; }

.page-about .crumbs {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
}

.page-about .crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .crumbs li {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--silver);
}

.page-about .crumbs li + li::before {
  content: "/";
  color: var(--mist);
}

.page-about .crumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-about .crumbs a:hover {
  color: var(--gold-lt);
  border-bottom-color: var(--ab-gold-line);
}

/* hero */
.page-about .about-hero {
  position: relative;
  padding: 34px 0 68px;
  background:
    radial-gradient(120% 100% at 92% 0%, rgba(140, 17, 32, .55) 0%, rgba(11, 11, 13, 0) 62%),
    linear-gradient(180deg, rgba(42, 10, 14, .5) 0%, rgba(11, 11, 13, 0) 74%);
}

.page-about .about-hero-grid {
  display: grid;
  gap: 34px;
  min-width: 0;
}

.page-about .about-hero h1 {
  margin: 16px 0 0;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(30px, 5.6vw, 56px);
  line-height: 1.16;
  letter-spacing: .01em;
  color: var(--paper);
}

.page-about .about-hero .lede {
  margin: 20px 0 0;
  max-width: 38em;
  color: var(--silver);
  font-size: 17px;
  line-height: 1.78;
}

.page-about .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-about .hero-index {
  border: 2px solid var(--line-strong);
  border-left: 6px solid var(--gold);
  background: linear-gradient(180deg, rgba(22, 16, 15, .94), rgba(11, 11, 13, .94));
  box-shadow: var(--shadow-lg);
  padding: 24px 22px 22px;
  min-width: 0;
}

.page-about .hero-index-cap {
  margin: 0 0 18px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-about .hero-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-about .hero-index-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: baseline;
  padding: 13px 0;
  border-top: 1px solid var(--line);
}

.page-about .hero-index-list li:first-child { border-top: 0; padding-top: 0; }

.page-about .hero-num {
  font-family: var(--mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--gold-lt);
}

.page-about .hero-num em {
  font-style: normal;
  font-size: .58em;
  color: var(--gold);
  margin-left: 1px;
}

.page-about .hero-lbl {
  color: var(--mist);
  font-size: 14px;
  line-height: 1.6;
}

/* sections */
.page-about .sec {
  padding: 62px 0;
  scroll-margin-top: var(--bar-h-min);
}

.page-about .sec-head {
  display: grid;
  gap: 10px;
  padding-bottom: 18px;
  margin: 0 0 34px;
  border-bottom: 1px solid var(--line);
}

.page-about .sec-index {
  margin: 0;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--eagle);
}

.page-about .sec-title {
  margin: 0;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.24;
  letter-spacing: .01em;
  color: var(--paper);
}

.page-about .sec-note {
  margin: 0;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.6;
}

/* history */
.page-about .history-figure {
  margin: 0 0 46px;
  border: 2px solid var(--line);
}

.page-about .history-figure img {
  filter: saturate(.68) brightness(.68);
}

.page-about .about-timeline {
  list-style: none;
  position: relative;
  margin: 0;
  padding: 0 0 0 30px;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--gold) 0%, rgba(201, 162, 39, .35) 58%, rgba(201, 162, 39, 0) 100%);
}

.page-about .tl-item {
  position: relative;
  padding-bottom: 44px;
}

.page-about .tl-item:last-child { padding-bottom: 0; }

.page-about .tl-node {
  position: absolute;
  left: -28px;
  top: 5px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--gold);
  box-shadow: 0 0 0 5px rgba(201, 162, 39, .1);
}

.page-about .tl-meta {
  margin: 0 0 6px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-about .tl-title {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.36;
  color: var(--paper);
}

.page-about .tl-text {
  margin: 0;
  max-width: 38em;
  color: var(--silver);
  font-size: 16px;
  line-height: 1.78;
}

.page-about .tl-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .03em;
  color: var(--mist);
}

.page-about .tl-facts li {
  position: relative;
  padding-left: 14px;
}

.page-about .tl-facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .58em;
  width: 6px;
  height: 1px;
  background: var(--ab-gold-line);
}

.page-about .tl-more {
  margin-top: 18px;
  border: 1px solid var(--line);
  background: rgba(22, 16, 15, .62);
}

.page-about .tl-more summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 16px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--gold-lt);
  transition: background .22s var(--ease);
}

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

.page-about .tl-more summary:hover { background: rgba(140, 17, 32, .22); }

.page-about .tl-more summary::after {
  content: "+";
  font-size: 17px;
  line-height: 1;
  color: var(--gold);
  transition: transform .22s var(--ease);
}

.page-about .tl-more[open] summary::after { transform: rotate(45deg); }

.page-about .tl-more[open] summary { border-bottom: 1px solid var(--line); }

.page-about .tl-more-body { padding: 15px 16px 17px; }

.page-about .tl-more-body ul {
  margin: 0;
  padding-left: 18px;
  color: var(--silver);
  font-size: 15px;
  line-height: 1.78;
}

.page-about .tl-more-body li + li { margin-top: 7px; }

/* numbering */
.page-about .num-intro {
  margin: 0 0 34px;
  max-width: 38em;
  color: var(--silver);
  font-size: 17px;
  line-height: 1.78;
}

.page-about .num-strip {
  display: grid;
  border: 2px solid var(--line-strong);
  background: linear-gradient(180deg, rgba(22, 16, 15, .88), rgba(11, 11, 13, .96));
  box-shadow: var(--shadow-lg);
  min-width: 0;
}

.page-about .num-seg {
  padding: 26px 22px 28px;
  border-top: 1px dashed var(--ab-dash);
  transition: background .22s var(--ease), opacity .22s var(--ease);
}

.page-about .num-seg:first-child { border-top: 0; }

.page-about .num-seg:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -4px;
}

.page-about .num-cap {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--eagle);
}

.page-about .num-code {
  display: inline-block;
  margin: 0 0 14px;
  padding-bottom: 9px;
  border-bottom: 2px solid var(--ab-gold-line);
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--gold-lt);
}

.page-about .num-desc {
  margin: 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.76;
}

.page-about .num-foot {
  margin: 26px 0 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.8;
}

.page-about .num-foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 163, 199, .42);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-about .num-foot a:hover {
  color: var(--gold-lt);
  border-bottom-color: var(--ab-gold-line);
}

/* archive */
.page-about .archive-grid {
  display: grid;
  gap: 32px;
  min-width: 0;
}

.page-about .archive-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .archive-list li {
  position: relative;
  padding: 20px 0 20px 48px;
  border-top: 1px solid var(--line);
}

.page-about .archive-list li:last-child { border-bottom: 1px solid var(--line); }

.page-about .arc-no {
  position: absolute;
  left: 0;
  top: 21px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 1px solid var(--ab-gold-line);
  font-family: var(--mono);
  font-size: 14px;
  color: var(--gold);
}

.page-about .archive-list h3 {
  margin: 0 0 6px;
  font-family: var(--serif);
  font-weight: 900;
  font-size: 19px;
  line-height: 1.4;
  color: var(--paper);
}

.page-about .archive-list p {
  margin: 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.76;
}

.page-about .archive-foot {
  margin: 22px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--gold);
  background: rgba(201, 162, 39, .07);
  color: var(--silver);
  font-size: 14px;
  line-height: 1.72;
}

.page-about .archive-fig {
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-lg);
}

.page-about .archive-fig img { filter: saturate(.7) brightness(.78); }

/* scale */
.page-about .scale-grid {
  display: grid;
  gap: 30px;
  min-width: 0;
}

.page-about .scale-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.page-about .scale-stats .idx-block {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 20px 16px;
  border: 2px solid var(--line-strong);
  border-left: 5px solid var(--gold);
  background: rgba(22, 16, 15, .82);
  box-shadow: var(--shadow-sm);
}

.page-about .scale-stats .idx-num {
  font-family: var(--mono);
  font-size: clamp(28px, 5.2vw, 42px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--gold-lt);
}

.page-about .scale-stats .idx-num em {
  font-style: normal;
  font-size: .55em;
  color: var(--gold);
}

.page-about .scale-stats .idx-label {
  font-size: 14px;
  line-height: 1.5;
  color: var(--mist);
}

.page-about .scale-fig { margin: 0; }

.page-about .scale-fig img {
  display: block;
  width: 100%;
  border: 1px solid var(--line);
  filter: saturate(.72) brightness(.78);
}

.page-about .scale-fig figcaption {
  margin-top: 12px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  line-height: 1.65;
  color: var(--mist);
}

.page-about .scale-foot {
  margin: 30px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  max-width: 54em;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.78;
}

/* service lines */
.page-about .flow-strip {
  list-style: none;
  margin: 0 0 38px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  border: 2px solid var(--line-strong);
  background: var(--line-strong);
}

.page-about .flow-strip li {
  display: grid;
  gap: 6px;
  padding: 16px 14px;
  background: rgba(22, 16, 15, .94);
  color: var(--silver);
  font-size: 15px;
}

.page-about .flow-no {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-about .lines-list { display: grid; }

.page-about .line-row {
  display: grid;
  gap: 12px;
  padding: 26px 0;
  border-top: 1px solid var(--line);
  min-width: 0;
}

.page-about .line-row:last-child { border-bottom: 1px solid var(--line); }

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

.page-about .line-no {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-about .line-name {
  margin: 0;
  font-family: var(--serif);
  font-weight: 900;
  font-size: 24px;
  line-height: 1.3;
  color: var(--paper);
}

.page-about .line-body { min-width: 0; }

.page-about .line-desc {
  margin: 0;
  max-width: 38em;
  color: var(--silver);
  font-size: 16px;
  line-height: 1.78;
}

.page-about .line-hand {
  margin: 12px 0 0;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--mist);
}

.page-about .line-hand b {
  font-weight: 400;
  color: var(--cyan);
}

/* governance */
.page-about .govern-grid {
  display: grid;
  gap: 16px;
  min-width: 0;
}

.page-about .govern-card {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--crimson);
  background: linear-gradient(180deg, rgba(42, 10, 14, .72), rgba(11, 11, 13, .42));
  min-width: 0;
}

.page-about .gov-cycle {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--eagle);
}

.page-about .govern-card h3 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 900;
  font-size: 21px;
  line-height: 1.38;
  color: var(--paper);
}

.page-about .gov-desc {
  margin: 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.76;
}

.page-about .eco-block {
  margin-top: 24px;
  padding: 26px 22px;
  border: 2px solid var(--line-strong);
  border-left: 5px solid var(--gold);
  background: rgba(22, 16, 15, .72);
  box-shadow: var(--shadow-sm);
}

.page-about .eco-block h3 {
  margin: 0 0 12px;
  font-family: var(--serif);
  font-weight: 900;
  font-size: 22px;
  line-height: 1.36;
  color: var(--paper);
}

.page-about .eco-block p {
  margin: 0;
  max-width: 48em;
  color: var(--silver);
  font-size: 16px;
  line-height: 1.78;
}

/* honor */
.page-about .honor-grid {
  display: grid;
  gap: 18px;
  min-width: 0;
}

.page-about .honor-card {
  position: relative;
  overflow: hidden;
  padding: 32px 24px 26px;
  background: var(--paper);
  border: 2px solid var(--crimson-deep);
  border-top: 6px solid var(--crimson);
  box-shadow: var(--shadow-lg);
}

.page-about .honor-seal {
  position: absolute;
  top: 14px;
  right: 14px;
  padding: 4px 9px;
  border: 2px solid var(--crimson);
  transform: rotate(-6deg);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--crimson);
  opacity: .78;
}

.page-about .honor-card h3 {
  margin: 0 0 10px;
  padding-right: 72px;
  font-family: var(--serif);
  font-weight: 900;
  font-size: 21px;
  line-height: 1.4;
  color: #4A0D15;
}

.page-about .honor-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: #4b4042;
}

/* footline */
.page-about .about-footline {
  margin-top: 38px;
  padding: 26px 0 56px;
  border-top: 1px solid var(--line);
}

.page-about .about-footline p {
  margin: 0;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .04em;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- responsive ---------- */
@media (min-width: 760px) {
  .page-about .flow-strip { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .page-about .govern-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-about .honor-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 900px) {
  .page-about .sec { padding: 88px 0; }

  .page-about .about-hero { padding: 48px 0 92px; }

  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 54px;
    align-items: end;
  }

  .page-about .sec-head {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    column-gap: 32px;
  }

  .page-about .sec-index { grid-column: 1 / -1; }

  .page-about .sec-note { text-align: right; }

  .page-about .archive-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 48px;
    align-items: start;
  }

  .page-about .scale-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
    align-items: start;
  }

  .page-about .line-row {
    grid-template-columns: minmax(0, 3fr) minmax(0, 7fr);
    gap: 36px;
    align-items: start;
  }

  .page-about .line-head { flex-direction: column; gap: 6px; }
}

@media (min-width: 820px) {
  .page-about .num-strip { grid-template-columns: repeat(3, minmax(0, 1fr)); }

  .page-about .num-seg {
    border-top: 0;
    border-left: 1px dashed var(--ab-dash);
  }

  .page-about .num-seg:first-child { border-left: 0; }
}

@media (hover: hover) and (pointer: fine) {
  .page-about .num-strip:hover .num-seg { opacity: .52; }

  .page-about .num-strip .num-seg:hover {
    opacity: 1;
    background: rgba(140, 17, 32, .24);
  }
}

@media (max-width: 560px) {
  .page-about .hero-index { padding: 20px 16px 18px; }

  .page-about .scale-stats { grid-template-columns: minmax(0, 1fr); }

  .page-about .about-timeline { padding-left: 24px; }

  .page-about .about-timeline::before { left: 7px; }

  .page-about .tl-node { left: -24px; width: 14px; height: 14px; }

  .page-about .honor-card h3 { padding-right: 0; }

  .page-about .honor-seal { position: static; display: inline-block; margin-bottom: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .num-seg,
  .page-about .tl-more summary,
  .page-about .tl-more summary::after,
  .page-about .crumbs a {
    transition: none !important;
  }
}