.page-about {
  --about-gap: clamp(22px, 4.5vw, 52px);
  --about-pad: clamp(48px, 8vw, 104px);
  --about-chip: #2BB3A3;
  background: var(--c-paper);
  color: var(--c-deep);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- HERO ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background: var(--c-deep);
  color: var(--c-paper);
  padding-bottom: clamp(40px, 7vw, 88px);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(143, 163, 181, 0.13) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(143, 163, 181, 0.13) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  top: -18%;
  right: -14%;
  width: 68%;
  height: 150%;
  background: linear-gradient(155deg, rgba(255, 106, 43, 0.20), rgba(53, 224, 210, 0.10) 58%, transparent 82%);
  clip-path: polygon(26% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-about .about-hero-inner {
  position: relative;
  z-index: 1;
  padding-top: clamp(18px, 3vw, 30px);
}

.page-about .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(22px, 4vw, 40px);
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.page-about .breadcrumb-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(247, 244, 238, 0.52);
}

.page-about .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  color: rgba(255, 106, 43, 0.8);
}

.page-about .breadcrumb-link {
  color: rgba(247, 244, 238, 0.72);
  text-decoration: none;
  border-bottom: 1px solid rgba(247, 244, 238, 0.22);
}

.page-about .breadcrumb-link:hover,
.page-about .breadcrumb-link:focus-visible {
  color: var(--c-orange);
  border-bottom-color: var(--c-orange);
}

.page-about .about-hero-grid {
  display: grid;
  gap: var(--about-gap);
  align-items: end;
}

.page-about .about-kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.page-about .about-kicker--dark {
  color: var(--c-cyan-ink);
}

.page-about .about-hero h1 {
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 7.4vw, 66px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--c-paper);
  max-width: 15em;
}

.page-about .lede {
  margin: 0 0 clamp(22px, 3.4vw, 34px);
  max-width: 42em;
  font-family: var(--font-serif);
  font-size: clamp(16px, 2.1vw, 19px);
  line-height: 1.78;
  color: rgba(247, 244, 238, 0.84);
}

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

.page-about .about-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: rgba(143, 163, 181, 0.26);
  border: 1px solid rgba(143, 163, 181, 0.26);
}

.page-about .about-figure {
  display: flex;
  flex-direction: column-reverse;
  gap: 6px;
  padding: 16px 14px 18px;
  background: rgba(7, 19, 31, 0.62);
}

.page-about .about-figure dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(26px, 5vw, 40px);
  font-weight: 600;
  line-height: 1;
  color: var(--c-orange);
}

.page-about .about-figure dt {
  font-size: 12px;
  line-height: 1.4;
  letter-spacing: 0.04em;
  color: rgba(247, 244, 238, 0.66);
}

/* ---------- SECTION SHELL ---------- */
.page-about .about-section {
  padding-block: var(--about-pad);
}

.page-about .about-section--paper {
  background: var(--c-paper);
}

.page-about .about-section--warm {
  background: var(--c-warm);
}

.page-about .about-section--dark {
  background: var(--c-deep);
  color: var(--c-paper);
}

.page-about .about-section--ink {
  background: var(--c-ink);
  color: var(--c-paper);
}

.page-about .about-head {
  max-width: 46em;
  margin-bottom: clamp(28px, 4.6vw, 52px);
}

.page-about .about-h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 4.4vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.005em;
  color: var(--c-deep);
}

.page-about .about-h2--light {
  color: var(--c-paper);
}

.page-about .section-sub {
  margin: 0;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.75;
  color: var(--c-slate);
}

.page-about .about-sub--light {
  color: rgba(247, 244, 238, 0.72);
}

/* ---------- SPLIT ---------- */
.page-about .about-split {
  display: grid;
  gap: var(--about-gap);
  align-items: start;
}

.page-about .prose p {
  margin: 0 0 16px;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.82;
  color: var(--c-slate);
}

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

.page-about .about-media-cut {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
  border: 1px solid var(--line-light);
  background: var(--c-deep);
}

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

.page-about .figure-caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-slate);
}

.page-about .about-section--dark .figure-caption,
.page-about .about-section--ink .figure-caption {
  color: rgba(247, 244, 238, 0.5);
}

/* ---------- MINI TIMELINE ---------- */
.page-about .about-timeline-mini {
  margin: clamp(22px, 3.4vw, 32px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-light);
}

.page-about .about-timeline-mini li {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-light);
}

.page-about .about-mini-year {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--c-orange);
  letter-spacing: 0.04em;
}

.page-about .about-mini-desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--c-slate);
}

/* ---------- METHOD ---------- */
.page-about .about-method {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line-light);
  border: 1px solid var(--line-light);
}

.page-about .about-method-item {
  position: relative;
  padding: clamp(20px, 3.4vw, 30px);
  background: var(--c-paper);
}

.page-about .about-method-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 44px;
  height: 3px;
  background: var(--c-orange);
}

.page-about .about-method-num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--c-cyan-ink);
}

.page-about .about-method-item h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(17px, 2.2vw, 20px);
  font-weight: 800;
  color: var(--c-deep);
}

.page-about .about-method-item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--c-slate);
}

/* ---------- NETWORK ---------- */
.page-about .about-network {
  display: grid;
  gap: var(--about-gap);
  align-items: start;
}

.page-about .about-regions {
  display: block;
}

.page-about .about-region-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-orange);
}

.page-about .about-region-title:not(:first-child) {
  margin-top: 22px;
}

.page-about .about-city-band {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .city-chip {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px 8px 11px;
  background: rgba(247, 244, 238, 0.05);
  border: 1px solid rgba(143, 163, 181, 0.3);
  font-size: 13.5px;
  color: var(--c-paper);
  cursor: default;
  transition: border-color 180ms var(--ease), transform 180ms var(--ease);
}

.page-about .city-chip:hover,
.page-about .city-chip:focus-visible {
  outline: none;
  transform: translateY(-2px);
  border-color: var(--c-cyan);
}

.page-about .city-chip-dot {
  width: 9px;
  height: 9px;
  flex: 0 0 9px;
  background: var(--about-chip);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.page-about .city-chip:nth-child(6n + 1) .city-chip-dot { background: #2BB3A3; }
.page-about .city-chip:nth-child(6n + 2) .city-chip-dot { background: #2D6CDF; }
.page-about .city-chip:nth-child(6n + 3) .city-chip-dot { background: #F2A03D; }
.page-about .city-chip:nth-child(6n + 4) .city-chip-dot { background: #B5653A; }
.page-about .city-chip:nth-child(6n + 5) .city-chip-dot { background: #2F8F6B; }
.page-about .city-chip:nth-child(6n) .city-chip-dot { background: #3C7FA3; }

.page-about .city-chip-name {
  font-weight: 600;
  letter-spacing: 0.02em;
}

.page-about .city-chip-pop {
  display: none;
}

/* ---------- TEAM ---------- */
.page-about .about-team-bars {
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-light);
}

.page-about .about-team-bar {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  grid-template-areas:
    "num role"
    "num desc";
  gap: 2px 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-light);
}

.page-about .about-team-num {
  grid-area: num;
  align-self: center;
  font-family: var(--font-mono);
  font-size: clamp(24px, 4vw, 32px);
  font-weight: 600;
  line-height: 1;
  color: var(--c-orange);
}

.page-about .about-team-role {
  grid-area: role;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  color: var(--c-deep);
}

.page-about .about-team-desc {
  grid-area: desc;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--c-slate);
}

.page-about .about-flow-note {
  margin: clamp(20px, 3vw, 26px) 0 0;
  padding: 16px 18px;
  background: var(--c-warm);
  border-left: 3px solid var(--c-orange);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--c-deep);
}

/* ---------- MILESTONES ---------- */
.page-about .about-milestones {
  position: relative;
  margin: 0;
  padding: 0 0 0 22px;
  list-style: none;
  border-left: 1px solid rgba(143, 163, 181, 0.34);
}

.page-about .ms-item {
  position: relative;
  padding-bottom: 12px;
}

.page-about .ms-item::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 18px;
  width: 9px;
  height: 9px;
  background: var(--c-orange);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.page-about .ms-item details {
  border: 1px solid rgba(143, 163, 181, 0.28);
  background: rgba(247, 244, 238, 0.035);
  transition: border-color 220ms var(--ease), background-color 220ms var(--ease);
}

.page-about .ms-item details[open] {
  border-color: rgba(255, 106, 43, 0.6);
  background: rgba(247, 244, 238, 0.06);
}

.page-about .ms-item summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding: 15px 17px;
  cursor: pointer;
  list-style: none;
}

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

.page-about .ms-item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--c-cyan);
}

.page-about .ms-item details[open] summary::after {
  content: "–";
  color: var(--c-orange);
}

.page-about .ms-stage {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: rgba(247, 244, 238, 0.52);
}

.page-about .ms-title {
  font-family: var(--font-display);
  font-size: clamp(15px, 2vw, 17px);
  font-weight: 700;
  color: var(--c-paper);
}

.page-about .ms-tag {
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--c-paper);
  border: 1px solid rgba(247, 244, 238, 0.3);
}

.page-about .ms-tag--cyan {
  color: var(--c-cyan);
  border-color: rgba(53, 224, 210, 0.55);
}

.page-about .ms-tag--orange {
  color: var(--c-orange);
  border-color: rgba(255, 106, 43, 0.6);
}

.page-about .ms-body {
  padding: 0 17px 17px;
}

.page-about .ms-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(247, 244, 238, 0.76);
}

.page-about .about-milestone-foot {
  margin: 22px 0 0;
}

.page-about .about-inline-link {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 210, 0.4);
  padding-bottom: 2px;
}

.page-about .about-inline-link:hover,
.page-about .about-inline-link:focus-visible {
  color: var(--c-orange);
  border-bottom-color: var(--c-orange);
}

/* ---------- ECOSYSTEM ---------- */
.page-about .about-eco {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line-light);
  border: 1px solid var(--line-light);
}

.page-about .about-eco-card {
  padding: clamp(20px, 3.2vw, 28px);
  background: var(--c-warm);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-about .about-eco-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(30px, 5.4vw, 44px);
  font-weight: 600;
  line-height: 1;
  color: var(--c-deep);
}

.page-about .about-eco-card h3 {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  color: var(--c-deep);
}

.page-about .about-eco-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--c-slate);
}

/* ---------- CTA ---------- */
.page-about .about-section--cta {
  position: relative;
  background: var(--c-deep);
  color: var(--c-paper);
  overflow: hidden;
}

.page-about .about-section--cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(143, 163, 181, 0.1) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(143, 163, 181, 0.1) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

.page-about .about-cta-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--about-gap);
}

.page-about .about-cta-lede {
  margin: 0 0 clamp(20px, 3vw, 28px);
  max-width: 40em;
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.78;
  color: rgba(247, 244, 238, 0.82);
}

.page-about .about-cta-panel {
  padding: clamp(20px, 3.4vw, 30px);
  background: rgba(7, 19, 31, 0.68);
  border: 1px solid rgba(143, 163, 181, 0.32);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-about .about-cta-panel-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.page-about .about-cta-mail {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: clamp(14px, 2.4vw, 17px);
  word-break: break-all;
}

.page-about .about-cta-mail a {
  color: var(--c-orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 106, 43, 0.5);
}

.page-about .about-cta-mail a:hover,
.page-about .about-cta-mail a:focus-visible {
  color: var(--c-cyan);
  border-bottom-color: var(--c-cyan);
}

.page-about .about-cta-tel {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: clamp(18px, 3vw, 22px);
  font-weight: 600;
  color: var(--c-paper);
}

.page-about .about-cta-note,
.page-about .about-cta-addr {
  margin: 0;
  font-size: 13px;
  line-height: 1.72;
  color: rgba(247, 244, 238, 0.62);
}

.page-about .about-cta-note {
  padding-bottom: 12px;
  margin-bottom: 12px;
  border-bottom: 1px solid rgba(143, 163, 181, 0.24);
}

/* ---------- RESPONSIVE ---------- */
@media (min-width: 640px) {
  .page-about .about-figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-method {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-eco {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, 0.58fr);
    gap: clamp(28px, 4vw, 60px);
  }

  .page-about .about-figures {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-split {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: clamp(30px, 5vw, 64px);
  }

  .page-about .about-split--reverse {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }

  .page-about .about-network {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.88fr);
    gap: clamp(30px, 4.6vw, 58px);
  }

  .page-about .about-network-media {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
  }

  .page-about .about-method {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-eco {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-cta-inner {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
  }

  .page-about .city-chip-pop {
    position: absolute;
    left: 0;
    bottom: calc(100% + 10px);
    z-index: 5;
    display: block;
    width: max-content;
    max-width: 260px;
    padding: 10px 12px;
    background: var(--c-ink);
    border: 1px solid rgba(53, 224, 210, 0.5);
    font-size: 12px;
    line-height: 1.6;
    color: rgba(247, 244, 238, 0.82);
    opacity: 0;
    visibility: hidden;
    transform: translateY(4px);
    transition: opacity 160ms var(--ease), transform 160ms var(--ease), visibility 160ms;
    pointer-events: none;
  }

  .page-about .city-chip-pop strong {
    display: block;
    margin-bottom: 3px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.12em;
    color: var(--c-orange);
  }

  .page-about .city-chip:hover .city-chip-pop,
  .page-about .city-chip:focus-visible .city-chip-pop,
  .page-about .city-chip:focus-within .city-chip-pop {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
}

@media (min-width: 1180px) {
  .page-about .about-milestones {
    padding-left: 30px;
  }

  .page-about .ms-item::before {
    left: -35px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .city-chip,
  .page-about .city-chip-pop,
  .page-about .ms-item details {
    transition: none;
  }

  .page-about .city-chip:hover,
  .page-about .city-chip:focus-visible {
    transform: none;
  }
}
<<<END>>>