.page-about .about-hero {
  position: relative;
  padding: clamp(24px, 4.5vw, 52px) 0 clamp(24px, 3.6vw, 40px);
  border-bottom: 1px dashed var(--c-line);
}

.page-about .about-hero .yk-h1 {
  max-width: 16em;
  margin: 10px 0 0;
}

.page-about .about-hero .yk-lead {
  max-width: 46em;
  margin: 18px 0 0;
  font-size: clamp(16px, 1.9vw, 18px);
  line-height: 1.78;
}

.page-about .about-facts {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
}

.page-about .about-fact {
  border-top: 2px solid var(--c-ink);
  padding-top: 9px;
}

.page-about .about-fact__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 2.6vw, 1.9rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.04em;
  color: var(--c-ink);
}

.page-about .about-fact__label {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-deep);
}

.page-about .about-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  padding-top: clamp(26px, 4vw, 46px);
  padding-bottom: clamp(40px, 6vw, 76px);
}

.page-about .about-aside {
  border-top: 2px solid var(--c-ink);
  padding-top: 12px;
  min-width: 0;
}

.page-about .about-aside__title {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--c-deep);
}

.page-about .about-toc {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-toc .yk-toc__link {
  flex: 0 0 auto;
  white-space: nowrap;
  padding: 6px 10px;
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-ochre);
  background: rgba(255, 255, 255, 0.55);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-ink);
  text-decoration: none;
  transition: background 0.18s var(--ease), border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-about .about-toc .yk-toc__link:hover {
  border-left-color: var(--c-green);
  background: rgba(11, 122, 90, 0.08);
}

.page-about .about-toc .yk-toc__link[aria-current="true"] {
  background: var(--c-ink);
  border-color: var(--c-ink);
  color: var(--c-sand);
}

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

.page-about .about-section {
  scroll-margin-top: 108px;
}

.page-about .about-body > .about-section + .about-section {
  margin-top: clamp(42px, 6vw, 74px);
  padding-top: clamp(30px, 4vw, 46px);
  border-top: 1px dashed var(--c-line);
}

.page-about .about-section .yk-h2 {
  margin: 8px 0 0;
  max-width: 18em;
}

.page-about .about-text {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: #332c24;
  max-width: 42em;
}

.page-about .about-figure {
  margin: clamp(20px, 3vw, 28px) 0 0;
}

.page-about .about-figure .yk-figure__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-stops {
  display: grid;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-about .about-stop {
  padding: 15px 17px 17px;
  background: var(--c-glass);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-ochre);
  transition: border-left-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-about .about-stop:hover {
  border-left-color: var(--c-green);
  box-shadow: var(--shadow-card);
}

.page-about .about-stop__year {
  display: inline-block;
  padding: 2px 8px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-deep);
  background: rgba(181, 121, 69, 0.14);
  border: 1px solid var(--c-ochre);
}

.page-about .about-stop__title {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-about .about-stop__text {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.72;
  color: #3b332a;
}

.page-about .about-compare {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-about .about-track {
  padding: 15px 15px 18px;
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid var(--c-line);
  min-width: 0;
}

.page-about .about-track--old {
  border-top: 4px solid var(--c-amber);
}

.page-about .about-track--new {
  border-top: 4px solid var(--c-indigo);
}

.page-about .about-track__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
}

.page-about .about-track__name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1rem;
}

.page-about .about-levels {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.page-about .about-level {
  height: 30px;
  display: flex;
  align-items: center;
  padding: 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--c-deep);
  background: rgba(23, 19, 14, 0.05);
  border-left: 2px solid var(--c-line);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.page-about .about-track--old .about-level {
  border-left-color: var(--c-amber);
}

.page-about .about-track--new .about-level {
  border-left-color: var(--c-indigo);
}

.page-about .about-track--old .about-level:nth-child(1) { width: 100%; }
.page-about .about-track--old .about-level:nth-child(2) { width: 86%; }
.page-about .about-track--old .about-level:nth-child(3) { width: 72%; }
.page-about .about-track--old .about-level:nth-child(4) { width: 60%; }
.page-about .about-track--old .about-level:nth-child(5) { width: 48%; }

.page-about .about-track--new .about-level:nth-child(1) { width: 100%; }
.page-about .about-track--new .about-level:nth-child(2) { width: 72%; }
.page-about .about-track--new .about-level:nth-child(3) { width: 48%; }

.page-about .about-metrics {
  margin-top: clamp(22px, 3vw, 30px);
  border-top: 2px solid var(--c-ink);
}

.page-about .about-metric {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 13px 0;
  border-bottom: 1px dashed var(--c-line);
}

.page-about .about-metric__key {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--c-deep);
  padding-top: 3px;
}

.page-about .about-metric__val {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.72;
  color: #332c24;
}

.page-about .about-team {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-about .about-role {
  padding: 15px 16px 17px;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid var(--c-line);
  border-top: 3px solid var(--c-ochre);
}

.page-about .about-role__no {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--c-ochre);
}

.page-about .about-role__name {
  margin: 8px 0 6px;
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
}

.page-about .about-role__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: #3b332a;
}

.page-about .about-practices {
  list-style: none;
  margin: clamp(18px, 2.6vw, 24px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-practices li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.75;
  color: #332c24;
}

.page-about .about-practices li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 8px;
  background: var(--c-green);
}

.page-about .about-partner-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin-top: clamp(18px, 2.6vw, 24px);
}

.page-about .about-partner {
  padding: 12px 14px;
  background: rgba(44, 77, 138, 0.06);
  border-left: 3px solid var(--c-indigo);
}

.page-about .about-partner__name {
  margin: 0 0 5px;
  font-family: var(--font-head);
  font-size: 0.98rem;
  font-weight: 700;
}

.page-about .about-partner__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.66;
  color: var(--c-deep);
}

.page-about .about-honor {
  display: grid;
  gap: 8px;
  margin-top: clamp(18px, 2.6vw, 24px);
}

.page-about .about-honor__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 11px 0;
  border-top: 1px dashed var(--c-line);
}

.page-about .about-honor__year {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--c-ochre);
}

.page-about .about-honor__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: #332c24;
}

.page-about .about-brief {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 28px);
  margin-top: clamp(20px, 3vw, 28px);
  align-items: start;
}

.page-about .about-brief__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  align-content: start;
}

.page-about .about-stat {
  border-top: 2px solid var(--c-green);
  padding-top: 9px;
}

.page-about .about-stat__num {
  display: block;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.04em;
  color: var(--c-ink);
}

.page-about .about-stat__label {
  display: block;
  margin-top: 5px;
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--c-deep);
}

.page-about .about-link {
  color: var(--c-green);
  text-decoration: none;
  border-bottom: 1px solid var(--c-green);
}

.page-about .about-link:hover {
  background: rgba(11, 122, 90, 0.1);
}

.page-about .about-next {
  margin-top: clamp(30px, 4.5vw, 48px);
  padding: clamp(18px, 3vw, 28px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid var(--c-line);
  border-left: 4px solid var(--c-ink);
  box-shadow: var(--shadow-card);
}

.page-about .about-next .yk-h3 {
  margin: 0;
}

.page-about .about-next .about-text {
  margin-top: 8px;
  font-size: 15px;
}

.page-about .about-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

@media (min-width: 640px) {
  .page-about .about-metric {
    grid-template-columns: 112px minmax(0, 1fr);
    gap: 16px;
  }

  .page-about .about-honor__row {
    grid-template-columns: 66px minmax(0, 1fr);
    gap: 14px;
    align-items: baseline;
  }
}

@media (min-width: 720px) {
  .page-about .about-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-about .about-partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-brief {
    grid-template-columns: 0.85fr 1.15fr;
  }

  .page-about .about-next {
    grid-template-columns: 1.25fr 0.75fr;
    align-items: center;
  }
}

@media (min-width: 820px) {
  .page-about .about-team {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (min-width: 980px) {
  .page-about .about-shell {
    grid-template-columns: 206px minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-aside {
    position: sticky;
    top: 96px;
  }

  .page-about .about-toc {
    flex-direction: column;
    overflow: visible;
    gap: 2px;
    padding-bottom: 0;
  }

  .page-about .about-toc .yk-toc__link {
    padding: 9px 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-stop,
  .page-about .about-toc .yk-toc__link {
    transition: none;
  }
}