.page-about {
  --about-narrow: 42ch;
  color: var(--text);
  background: var(--ink-0);
}

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

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(24px, 4vw, 56px) clamp(28px, 4vw, 52px);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 229, 199, 0.13), rgba(0, 229, 199, 0) 58%);
  pointer-events: none;
}

.page-about .about-hero .shell {
  position: relative;
  z-index: 1;
}

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

.page-about .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}

.page-about .breadcrumb a:hover,
.page-about .breadcrumb a:focus-visible {
  color: var(--cyan);
}

.page-about .hero-grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-about .kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0;
}

.page-about .hero-title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(32px, 6vw, 60px);
  line-height: 1.03;
  letter-spacing: -0.01em;
  margin: 14px 0 0;
  color: var(--text);
}

.page-about .hero-lede {
  max-width: 46ch;
  margin: 20px 0 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--muted);
}

.page-about .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .hero-board {
  border-top: 2px solid var(--cyan);
  background: var(--ink-1);
  padding: 18px clamp(16px, 3vw, 24px) 6px;
}

.page-about .hero-board__title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 6px;
}

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

.page-about .hero-board__list li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .hero-board__list li:last-child {
  border-bottom: 0;
}

.page-about .hero-board__num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
  min-width: 2.4em;
  letter-spacing: -0.03em;
}

.page-about .hero-board__unit {
  font-size: 0.52em;
  color: var(--lime);
  margin-left: 2px;
}

.page-about .hero-board__label {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--muted);
}

.page-about .hero-index {
  display: flex;
  flex-wrap: wrap;
  gap: 2px 22px;
  margin-top: clamp(24px, 4vw, 40px);
  padding-top: 14px;
  border-top: 1px solid var(--line-strong);
}

.page-about .hero-index a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-about .hero-index a span {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--cyan);
  letter-spacing: 0.08em;
}

.page-about .hero-index a:hover,
.page-about .hero-index a:focus-visible {
  color: var(--text);
  border-bottom-color: var(--cyan);
}

.page-about .chapter {
  padding-block: clamp(52px, 8vw, 118px);
  border-top: 1px solid var(--line);
}

.page-about .chapter__inner {
  display: grid;
  gap: 20px;
}

.page-about .chapter__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(42px, 8vw, 80px);
  line-height: 0.88;
  letter-spacing: -0.05em;
  color: rgba(0, 229, 199, 0.55);
  font-variant-numeric: tabular-nums;
  margin-bottom: 12px;
}

.page-about .chapter__title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(22px, 3.4vw, 33px);
  line-height: 1.3;
  margin: 0;
  color: var(--text);
}

.page-about .chapter__body p {
  margin: 0 0 16px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--muted);
}

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

.page-about .chapter__body strong {
  color: var(--text);
  font-weight: 600;
}

.page-about .about-banner,
.page-about .about-phone {
  margin: clamp(28px, 4vw, 46px) 0 0;
}

.page-about .about-phone {
  max-width: 520px;
}

.page-about .media-frame__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-about .tl-strip {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 2px 2px 18px;
  margin-top: clamp(26px, 4vw, 40px);
}

.page-about .tl-node {
  flex: 0 0 min(82vw, 330px);
  scroll-snap-align: start;
  border: 1px solid var(--line);
  border-top: 2px solid var(--blue);
  background: var(--ink-1);
  padding: 20px 18px;
}

.page-about .tl-node--current {
  border-top-color: var(--orange);
  background: #101827;
}

.page-about .tl-node__ver {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: var(--text);
}

.page-about .tl-node__dot {
  width: 9px;
  height: 9px;
  flex: none;
  border-radius: 50%;
  background: var(--blue);
}

.page-about .tl-node--current .tl-node__dot {
  background: var(--lime);
}

.page-about .tl-node__name {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(21px, 2.6vw, 26px);
  line-height: 1.15;
  margin: 0 0 10px;
  color: var(--text);
}

.page-about .tl-node__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-about .tl-more {
  margin-top: 14px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.page-about .tl-more summary {
  cursor: pointer;
  list-style: none;
  min-height: 32px;
  display: flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

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

.page-about .tl-more summary::after {
  content: "+";
  margin-left: 8px;
}

.page-about .tl-more[open] summary::after {
  content: "−";
}

.page-about .tl-node__list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-about .tl-node__list li {
  position: relative;
  padding-left: 15px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--text);
}

.page-about .tl-node__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 7px;
  height: 1px;
  background: var(--cyan);
}

.page-about .tl-footnote {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-about .tl-footnote a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 199, 0.4);
}

.page-about .pipe-grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  margin-top: clamp(26px, 4vw, 44px);
}

.page-about .pipe-step {
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.page-about .pipe-step:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-about .pipe-step__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-about .pipe-step__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-about .pipe-step__title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 20px;
  margin: 0;
  color: var(--text);
}

.page-about .pipe-step__text {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-about .team-scroll {
  overflow-x: auto;
  margin-top: 22px;
}

.page-about .team-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
}

.page-about .team-table__caption {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--muted);
  padding-bottom: 12px;
}

.page-about .team-table th,
.page-about .team-table td {
  text-align: left;
  vertical-align: top;
  padding: 15px 14px;
  border-bottom: 1px solid var(--line);
}

.page-about .team-table thead th {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--line-strong);
  font-weight: 500;
}

.page-about .team-table tbody th {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 17px;
  color: var(--cyan);
  white-space: nowrap;
}

.page-about .team-table tbody td {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-about .team-table tbody tr:hover th {
  color: var(--lime);
}

.page-about .league-grid {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

.page-about .league {
  border: 1px solid var(--line);
  background: var(--ink-1);
}

.page-about .league[open] {
  border-color: var(--line-strong);
  background: #0e1320;
}

.page-about .league__sum {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 48px;
  padding: 12px 14px;
  cursor: pointer;
  list-style: none;
}

.page-about .league__sum::-webkit-details-marker {
  display: none;
}

.page-about .league__name {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 17px;
  color: var(--text);
  letter-spacing: 0.01em;
}

.page-about .league__plus {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--cyan);
  flex: none;
}

.page-about .league[open] .league__plus {
  color: var(--orange);
}

.page-about .league__panels {
  list-style: none;
  margin: 0;
  padding: 0 14px 14px;
  display: grid;
  gap: 7px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.page-about .partner-figures {
  display: grid;
  gap: 18px;
  margin-top: clamp(26px, 4vw, 40px);
}

.page-about .partner-figure {
  border-top: 2px solid var(--line-strong);
  padding-top: 14px;
}

.page-about .partner-figure__num {
  font-family: var(--font-mono);
  font-size: clamp(30px, 4vw, 42px);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
  margin: 0;
}

.page-about .partner-figure__label {
  display: block;
  margin-top: 9px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--muted);
}

.page-about .chapter--light {
  background: var(--light);
  color: var(--ink-0);
}

.page-about .chapter--light .chapter__num {
  color: rgba(11, 14, 20, 0.25);
}

.page-about .chapter--light .chapter__title {
  color: var(--ink-0);
}

.page-about .chapter--light .chapter__body p {
  color: rgba(11, 14, 20, 0.72);
}

.page-about .compliance-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}

.page-about .compliance-list li {
  padding: 16px 0 16px 20px;
  position: relative;
  border-top: 1px solid rgba(11, 14, 20, 0.14);
  font-size: 15px;
  line-height: 1.75;
  color: rgba(11, 14, 20, 0.82);
}

.page-about .compliance-list li:first-child {
  border-top: 0;
  padding-top: 4px;
}

.page-about .compliance-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.55em;
  width: 9px;
  height: 9px;
  background: var(--orange);
}

.page-about .chapter--light .compliance-note {
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: rgba(11, 14, 20, 0.55);
}

.page-about .talk-box {
  border: 1px solid var(--line-strong);
  background: var(--ink-1);
  padding: clamp(20px, 4vw, 36px);
  display: grid;
  gap: 20px;
}

.page-about .talk-box__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .talk-box__text strong {
  color: var(--cyan);
  font-weight: 600;
  word-break: break-all;
}

.page-about .talk-box__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 640px) {
  .page-about .partner-figures {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

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

@media (min-width: 780px) {
  .page-about .pipe-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-about .hero-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-about .chapter__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, var(--about-narrow));
    column-gap: clamp(32px, 6vw, 88px);
    align-items: start;
  }

  .page-about .chapter__head {
    grid-column: 1;
  }

  .page-about .chapter__body {
    grid-column: 2;
  }

  .page-about .chapter__body--wide {
    grid-column: 1 / -1;
  }

  .page-about .about-banner {
    margin-top: clamp(36px, 4vw, 56px);
  }

  .page-about .about-phone {
    margin-left: auto;
    margin-right: auto;
  }

  .page-about .tl-node {
    flex: 0 0 340px;
  }
}

@media (min-width: 1080px) {
  .page-about .league-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 420px) {
  .page-about .hero-board__list li {
    gap: 10px;
  }

  .page-about .hero-board__num {
    min-width: 2.1em;
  }

  .page-about .tl-node {
    flex: 0 0 88vw;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .page-about .hero-index a,
  .page-about .league__plus,
  .page-about .team-table tbody th {
    transition: color 150ms ease-out, border-color 150ms ease-out;
  }
}
<<<END>>>