.page-about {
  --about-grid-gap: clamp(1.5rem, 3vw, 2.5rem);
  --about-section-pad: clamp(3.5rem, 7vw, 5.5rem) 0;
  background: var(--color-white);
}

.page-about .breadcrumb {
  margin-bottom: 1.5rem;
  font-size: .85rem;
}

.page-about .breadcrumb a {
  color: rgba(255, 255, 255, .72);
  text-decoration: none;
  transition: color .2s ease;
}

.page-about .breadcrumb a:hover {
  color: var(--color-gold);
}

.page-about .breadcrumb [aria-current="page"] {
  color: var(--color-gold);
}

.page-about__hero {
  position: relative;
  color: var(--color-white);
  padding: 3rem 0 4rem;
  background:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(135deg, var(--color-deep) 0%, var(--color-navy) 100%);
  background-size: 56px 56px, 56px 56px, 100% 100%;
}

.page-about__hero-inner {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

.page-about__kicker {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 1rem;
}

.page-about__hero-content h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.1rem);
  line-height: 1.16;
  font-weight: 800;
  letter-spacing: -.02em;
  margin: 0 0 1.25rem;
  color: var(--color-white);
}

.page-about__lead {
  font-size: 1.02rem;
  line-height: 1.9;
  color: rgba(255, 255, 255, .85);
  max-width: 56ch;
  margin: 0 0 1.5rem;
}

.page-about__hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .75rem 1.25rem;
  margin-bottom: 1.5rem;
}

.page-about__hero-actions .btn {
  margin: 0;
}

.page-about__hero-link {
  color: rgba(255, 255, 255, .85);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 500;
  transition: color .2s ease;
}

.page-about__hero-link:hover {
  color: var(--color-gold);
}

.page-about__hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.5rem;
  font-family: var(--font-mono);
  font-size: .78rem;
  color: rgba(255, 255, 255, .58);
  padding-top: 1.1rem;
  border-top: 1px solid rgba(255, 255, 255, .16);
}

.page-about__hero-visual {
  position: relative;
  max-width: 420px;
  margin-left: auto;
  margin-right: auto;
}

.page-about__hero-visual::before {
  content: "";
  position: absolute;
  top: -1rem;
  left: -1rem;
  width: 40%;
  height: 40%;
  border-top: 3px solid var(--color-gold);
  border-left: 3px solid var(--color-gold);
  pointer-events: none;
}

.page-about__hero-img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 2px;
}

.page-about__hero-version {
  position: absolute;
  right: 1rem;
  bottom: -1rem;
  background: var(--color-accent);
  color: var(--color-white);
  font-family: var(--font-mono);
  font-size: .88rem;
  padding: .4rem .8rem;
  border-radius: 2px;
  box-shadow: 0 8px 24px rgba(255, 107, 53, .35);
}

.page-about__merge {
  background: var(--color-light);
  padding: var(--about-section-pad);
}

.page-about__section-index {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: .65rem;
}

.page-about__section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.6vw, 2.2rem);
  line-height: 1.25;
  font-weight: 700;
  color: var(--color-deep);
  margin: 0 0 1rem;
}

.page-about__section-intro {
  color: var(--color-text-soft);
  font-size: .98rem;
  line-height: 1.8;
  max-width: 62ch;
  margin: 0;
}

.page-about__merge-grid {
  display: grid;
  gap: var(--about-grid-gap);
  margin-top: 2.5rem;
  align-items: start;
}

.page-about__merge-copy {
  font-size: 1rem;
  line-height: 1.9;
  color: var(--color-text-soft);
}

.page-about__merge-copy p {
  margin: 0 0 1rem;
}

.page-about__merge-copy a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 500;
}

.page-about__merge-copy .btn {
  margin-top: 1.25rem;
}

.page-about__merge-cards {
  display: grid;
  gap: 1rem;
}

.page-about__merge-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 2px;
  padding: 1.5rem 1.5rem 1.25rem;
  box-shadow: 0 4px 18px rgba(11, 30, 63, .05);
}

.page-about__merge-card--before {
  border-top: 3px solid var(--color-gold);
}

.page-about__merge-card--after {
  border-top: 3px solid var(--color-accent);
}

.page-about__merge-label {
  display: block;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-text-soft);
  margin-bottom: .75rem;
}

.page-about__merge-card--after .page-about__merge-label {
  color: var(--color-accent);
}

.page-about__merge-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about__merge-card li {
  position: relative;
  padding: .3rem 0 .3rem 1.25rem;
  font-size: .92rem;
  line-height: 1.75;
  color: var(--color-text-soft);
}

.page-about__merge-card li::before {
  content: "";
  position: absolute;
  left: .1rem;
  top: .85rem;
  width: .42rem;
  height: .42rem;
  background: var(--color-gold);
}

.page-about__merge-card--after li::before {
  background: var(--color-accent);
}

.page-about__timeline {
  background: var(--color-white);
  padding: var(--about-section-pad);
}

.page-about__timeline-track {
  position: relative;
  margin-top: 3rem;
}

.page-about__timeline-track::before {
  content: "";
  position: absolute;
  left: .8rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-gold) 0%, var(--color-accent) 100%);
}

.page-about__timeline-track::after {
  content: "";
  position: absolute;
  left: .35rem;
  bottom: -.75rem;
  width: .9rem;
  height: .9rem;
  background: var(--color-accent);
  border: 2px solid var(--color-gold);
  border-radius: 50%;
}

.page-about__timeline-node {
  position: relative;
  padding-left: 3rem;
  margin-bottom: 1.75rem;
}

.page-about__timeline-icon {
  position: absolute;
  left: 0;
  top: .65rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: var(--color-deep);
  color: var(--color-gold);
  border: 2px solid var(--color-gold);
  z-index: 1;
}

.page-about__timeline-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-gold);
  border-radius: 2px;
  box-shadow: 0 4px 18px rgba(11, 30, 63, .05);
}

.page-about__timeline-card summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .35rem 1rem;
  padding: 1.15rem 1.25rem;
}

.page-about__timeline-card summary::-webkit-details-marker {
  display: none;
}

.page-about__timeline-card summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  color: var(--color-accent);
  font-size: 1.3rem;
  line-height: 1;
  transition: transform .22s ease;
}

.page-about__timeline-card[open] summary::after {
  transform: rotate(45deg);
}

.page-about__timeline-version {
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .06em;
  color: var(--color-accent);
  background: rgba(255, 107, 53, .1);
  border-radius: 2px;
  padding: .2rem .5rem;
  white-space: nowrap;
}

.page-about__timeline-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-deep);
}

.page-about__timeline-detail {
  border-top: 1px dashed var(--color-border);
  margin: 0 1.25rem;
  padding: 1rem 0 1.25rem;
}

.page-about__timeline-detail p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.85;
  color: var(--color-text-soft);
}

.page-about__rules {
  background: linear-gradient(135deg, var(--color-deep) 0%, var(--color-navy) 100%);
  color: var(--color-white);
  padding: var(--about-section-pad);
}

.page-about__rules .page-about__section-head h2 {
  color: var(--color-white);
}

.page-about__rules .page-about__section-intro {
  color: rgba(255, 255, 255, .72);
}

.page-about__rules-grid {
  display: grid;
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.page-about__rules-card {
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 2px;
  padding: 1.75rem 1.5rem 1.5rem;
}

.page-about__rules-num {
  display: block;
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--color-gold);
  margin-bottom: .75rem;
}

.page-about__rules-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 .6rem;
  color: var(--color-white);
}

.page-about__rules-card p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, .8);
}

.page-about__rules a {
  color: var(--color-gold);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color .2s ease;
}

.page-about__rules a:hover {
  color: var(--color-white);
}

.page-about__rules-note {
  margin: 2rem 0 0;
  font-size: .95rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, .78);
}

.page-about__stats {
  background: var(--color-light);
  padding: var(--about-section-pad);
}

.page-about__stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 2.5rem;
}

.page-about__stat-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: .4rem;
  min-height: 118px;
  padding: 1.5rem 1.25rem;
  border-radius: 2px;
}

.page-about__stat-card:nth-child(1),
.page-about__stat-card:nth-child(2) {
  background: var(--color-deep);
  color: var(--color-white);
}

.page-about__stat-card:nth-child(3),
.page-about__stat-card:nth-child(4) {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  color: var(--color-deep);
}

.page-about__stat-num {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -.02em;
}

.page-about__stat-card:nth-child(1) .page-about__stat-num {
  color: var(--color-gold);
}

.page-about__stat-card:nth-child(2) .page-about__stat-num {
  color: var(--color-accent);
}

.page-about__stat-card:nth-child(3) .page-about__stat-num,
.page-about__stat-card:nth-child(4) .page-about__stat-num {
  color: var(--color-deep);
}

.page-about__stat-label {
  font-size: .86rem;
  line-height: 1.45;
  opacity: .82;
}

.page-about__honor {
  display: grid;
  gap: 1.5rem;
  align-items: center;
  margin-top: 2.5rem;
}

.page-about__honor-list {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 2px;
  padding: 1.75rem 1.5rem;
}

.page-about__honor-list h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-deep);
  margin: 0 0 1rem;
}

.page-about__honor-list ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about__honor-list li {
  position: relative;
  padding: .7rem 0 .7rem 1.6rem;
  border-bottom: 1px solid var(--color-border);
  font-size: .92rem;
  line-height: 1.7;
  color: var(--color-text-soft);
}

.page-about__honor-list li:last-child {
  border-bottom: 0;
}

.page-about__honor-list li::before {
  content: "";
  position: absolute;
  left: .2rem;
  top: 1.05rem;
  width: .5rem;
  height: .5rem;
  background: var(--color-gold);
  transform: rotate(45deg);
}

.page-about__honor-visual img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 2px;
  border: 1px solid var(--color-border);
  box-shadow: 0 8px 32px rgba(11, 30, 63, .08);
}

.page-about__team {
  background: var(--color-white);
  padding: var(--about-section-pad);
}

.page-about__team-grid {
  display: grid;
  gap: 1rem;
  margin-top: 2.5rem;
}

.page-about__team-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-deep);
  border-radius: 2px;
  padding: 1.5rem 1.25rem;
  box-shadow: 0 4px 18px rgba(11, 30, 63, .04);
}

.page-about__team-card:nth-child(2) {
  border-top-color: var(--color-accent);
}

.page-about__team-card:nth-child(3) {
  border-top-color: var(--color-gold);
}

.page-about__team-card:nth-child(4) {
  border-top-color: var(--color-deep);
}

.page-about__team-card h3 {
  font-family: var(--font-display);
  font-size: .98rem;
  font-weight: 600;
  color: var(--color-deep);
  margin: 0 0 .6rem;
}

.page-about__team-card p {
  margin: 0;
  font-size: .88rem;
  line-height: 1.75;
  color: var(--color-text-soft);
}

.page-about__team-visual {
  margin-top: 2rem;
}

.page-about__team-visual img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 2px;
  box-shadow: 0 8px 32px rgba(11, 30, 63, .06);
}

.page-about__team-note {
  margin: 1.25rem 0 0;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--color-text-soft);
}

.page-about__team-note a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (min-width: 760px) {
  .page-about__hero {
    padding: 4.5rem 0 5rem;
  }

  .page-about__merge-grid {
    grid-template-columns: 1.15fr .85fr;
  }

  .page-about__merge-cards {
    grid-template-columns: 1fr;
  }

  .page-about__rules-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about__stats-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.1rem;
  }

  .page-about__honor {
    grid-template-columns: .9fr 1.1fr;
    gap: 2rem;
  }

  .page-about__honor-list {
    padding: 2rem;
  }

  .page-about__team-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about__team-visual {
    margin-top: 2.25rem;
  }
}

@media (min-width: 960px) {
  .page-about__hero-inner {
    grid-template-columns: 1.1fr .9fr;
    gap: 4rem;
  }

  .page-about__hero-visual {
    margin-left: auto;
    margin-right: 0;
    max-width: 420px;
  }

  .page-about__timeline-track {
    margin-top: 3.5rem;
  }

  .page-about__timeline-track::before {
    left: 50%;
    transform: translateX(-1px);
  }

  .page-about__timeline-track::after {
    left: calc(50% - .45rem);
    bottom: -1rem;
  }

  .page-about__timeline-node {
    width: 50%;
    padding-left: 0;
    margin-bottom: 2.25rem;
  }

  .page-about__timeline-node:nth-child(odd) {
    margin-right: 50%;
    padding-right: 3rem;
    text-align: right;
  }

  .page-about__timeline-node:nth-child(even) {
    margin-left: 50%;
    padding-left: 3rem;
    text-align: left;
  }

  .page-about__timeline-node:nth-child(odd) .page-about__timeline-icon {
    left: auto;
    right: -1.25rem;
  }

  .page-about__timeline-node:nth-child(even) .page-about__timeline-icon {
    left: -1.25rem;
    right: auto;
  }

  .page-about__timeline-card summary {
    padding: 1.25rem 1.5rem;
  }

  .page-about__timeline-detail {
    margin: 0 1.5rem;
  }

  .page-about__team-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about__team-visual {
    display: grid;
    grid-template-columns: 1.15fr .85fr;
    gap: 2rem;
    align-items: center;
    margin-top: 2.25rem;
  }

  .page-about__team-visual img {
    grid-column: 1;
  }

  .page-about__team-note {
    grid-column: 2;
    grid-row: 1;
    margin: 0;
    padding: 0 1rem;
    font-size: .95rem;
  }
}