.page-about {
  --about-gold-soft: rgba(201, 160, 99, 0.14);
  --about-teal-soft: rgba(45, 212, 191, 0.1);
  --about-orange-soft: rgba(255, 107, 53, 0.12);
  --about-line: rgba(255, 255, 255, 0.07);
  padding-bottom: 96px;
  background: var(--navy-900);
}
.page-about a { color: var(--teal-400); }
.page-about a:hover { color: var(--gold-300); }

.page-about .about-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 28px clamp(20px, 6vw, 72px) 0;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.page-about .about-breadcrumbs__sep { color: var(--gold-500); }

.page-about .about-section-title {
  position: relative;
  margin: 18px 0 24px;
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 3.6vw, 2.8rem);
  line-height: 1.22;
  color: var(--paper);
}
.page-about .about-section-title::after {
  content: '';
  display: block;
  width: 52px;
  height: 2px;
  background: var(--gold-500);
  margin-top: 14px;
}

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(48px, 8vw, 96px) clamp(20px, 6vw, 72px);
}
.page-about .about-hero__shape {
  position: absolute;
  pointer-events: none;
}
.page-about .about-hero__shape--one {
  right: -70px;
  top: 8%;
  width: 46vw;
  height: 360px;
  background: linear-gradient(135deg, var(--about-gold-soft), rgba(201, 160, 99, 0.02));
  clip-path: polygon(16% 0, 100% 0, 100% 100%, 0 100%);
}
.page-about .about-hero__shape--two {
  left: 24%;
  bottom: -60px;
  width: 56vw;
  height: 220px;
  background: var(--about-teal-soft);
  clip-path: polygon(0 22%, 100% 0, 88% 100%, 0 100%);
}
.page-about .about-hero__edition {
  position: absolute;
  right: clamp(12px, 4vw, 48px);
  bottom: -20px;
  font-size: clamp(8rem, 22vw, 18rem);
  line-height: 0.8;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(201, 160, 99, 0.28);
  font-family: var(--font-mono);
  user-select: none;
}
.page-about .about-hero__content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}
.page-about .about-hero__title {
  margin: 20px 0 22px;
  font-family: var(--font-serif);
  font-size: clamp(2.1rem, 5vw, 4rem);
  line-height: 1.12;
  color: var(--paper);
}
.page-about .about-hero__lead {
  font-size: clamp(1.1rem, 1.8vw, 1.4rem);
  line-height: 1.6;
  color: var(--gold-300);
  margin-bottom: 28px;
}
.page-about .about-hero__body p {
  font-family: var(--font-sans);
  font-size: clamp(1rem, 1.2vw, 1.125rem);
  line-height: 1.75;
  color: var(--muted);
  margin-bottom: 18px;
}
.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.page-about .about-journey {
  position: relative;
}
.page-about .about-journey__grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(var(--about-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-line) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,0.6), transparent 85%);
}
.page-about .about-journey__rule {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 36px;
}
.page-about .about-journey__rule::before,
.page-about .about-journey__rule::after {
  content: '';
  flex: 1;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--line) 0 8px, transparent 8px 16px);
}
.page-about .about-journey__handle {
  position: relative;
  width: 44px;
  height: 10px;
  border: 1px solid var(--gold-500);
  border-radius: 10px;
}
.page-about .about-journey__handle::after {
  content: '';
  position: absolute;
  left: 12px;
  right: 12px;
  top: 3px;
  height: 1px;
  background: var(--gold-500);
  opacity: 0.6;
}
.page-about .about-journey__lead {
  max-width: 520px;
  margin-bottom: 36px;
  color: var(--muted);
  line-height: 1.7;
}
.page-about .about-journey__artwrap {
  float: none;
  margin: 0 0 40px;
}
.page-about .about-journey__art {
  max-width: 360px;
}
.page-about .about-timeline {
  list-style: none;
  display: grid;
  gap: 48px;
  margin: 0;
  padding: 0;
  position: relative;
}
.page-about .about-timeline::before {
  content: '';
  position: absolute;
  left: 9px;
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: linear-gradient(180deg, var(--gold-500), var(--line) 60%, transparent);
}
.page-about .about-timeline__item {
  position: relative;
  padding-left: 36px;
}
.page-about .about-timeline__item::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 16px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--navy-900);
  border: 2px solid var(--gold-500);
  box-shadow: 0 0 0 6px rgba(201, 160, 99, 0.08);
}
.page-about .about-timeline__year {
  display: block;
  font-size: clamp(3rem, 10vw, 5.2rem);
  line-height: 1;
  color: var(--navy-900);
  -webkit-text-stroke: 1px var(--gold-500);
  margin: 0 0 10px;
}
.page-about .about-timeline__card {
  margin: 0;
}
.page-about .about-timeline__card .archive-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.page-about .about-versions {
  position: relative;
}
.page-about .about-versions__lead {
  max-width: 560px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 30px;
}
.page-about .about-versions__art {
  max-width: 560px;
  margin-bottom: 40px;
}
.page-about .about-version-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}
.page-about .about-version-list__step {
  position: relative;
  padding: 22px 0 22px 52px;
  border-left: 1px solid var(--line);
}
.page-about .about-version-list__step::before {
  content: '';
  position: absolute;
  left: -7px;
  top: 34px;
  width: 13px;
  height: 13px;
  background: var(--gold-500);
  transform: rotate(45deg);
}
.page-about .about-version-list__step--current::before {
  background: var(--orange-500);
  box-shadow: 0 0 0 6px var(--about-orange-soft);
}
.page-about .about-version-list__code {
  display: inline-block;
  font-size: 22px;
  color: var(--teal-400);
  margin-bottom: 8px;
}
.page-about .about-version-list__step--current .about-version-list__code {
  color: var(--orange-500);
}
.page-about .about-version-list__desc h3 {
  margin: 0 0 6px;
  font-size: 18px;
  color: var(--paper);
  font-weight: 600;
}
.page-about .about-version-list__desc p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}
.page-about .about-versions__note {
  margin-top: 36px;
}

.page-about .about-governance {
  position: relative;
  overflow: hidden;
}
.page-about .about-governance__panel {
  position: absolute;
  right: -140px;
  top: -40px;
  width: 320px;
  height: 320px;
  background: var(--about-teal-soft);
  border-radius: 48% 52% 40% 60%;
  pointer-events: none;
}
.page-about .about-governance__lead {
  max-width: 540px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 30px;
}
.page-about .about-governance__art {
  max-width: 560px;
  margin-bottom: 36px;
}
.page-about .about-review-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-about .about-review-list__item {
  position: relative;
  margin: 0 0 16px;
  padding: 22px 20px 22px 60px;
  background: rgba(255, 255, 255, 0.03);
  border-left: 3px solid var(--gold-500);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.page-about .about-review-list__num {
  position: absolute;
  left: 18px;
  top: 24px;
  font-size: 24px;
  color: var(--teal-400);
}
.page-about .about-review-list__title {
  margin: 0 0 8px;
  font-size: 19px;
  color: var(--paper);
  font-weight: 600;
}
.page-about .about-review-list__item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}
.page-about .about-governance__stats {
  display: grid;
  gap: 16px;
  margin-top: 40px;
}

.page-about .about-service__lead {
  max-width: 560px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 30px;
}
.page-about .about-service__grid {
  display: grid;
  gap: 16px;
}
.page-about .about-service__item {
  margin: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01));
}
.page-about .about-service__value {
  margin: 8px 0 0;
  font-size: 19px;
  color: var(--paper);
  line-height: 1.5;
  word-break: break-word;
}
.page-about .about-service__muted {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 14px;
}
.page-about .about-service__meta {
  margin-top: 28px;
  color: var(--gold-300);
  font-size: 14px;
}
.page-about .about-service__footer {
  margin-top: 16px;
  color: var(--muted);
}

.page-about .about-ecosystem {
  border-top: 1px solid var(--line);
}
.page-about .about-ecosystem__content {
  max-width: 720px;
  color: var(--muted);
  line-height: 1.75;
}
.page-about .about-ecosystem__content p {
  margin: 0 0 16px;
}
.page-about .about-ecosystem__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.page-about .about-ecosystem__badge {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--gold-300);
  background: rgba(255, 255, 255, 0.02);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-about .about-ecosystem__badge:hover {
  transform: translateY(-4px);
  border-color: var(--gold-500);
}

@media (min-width: 768px) {
  .page-about .about-hero__content {
    max-width: 780px;
  }
  .page-about .about-timeline__item {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 16px 24px;
    align-items: start;
  }
  .page-about .about-timeline__year {
    grid-row: 1;
    margin: 0;
    font-size: clamp(3.2rem, 8vw, 5rem);
  }
  .page-about .about-timeline__card {
    grid-column: 2;
  }
  .page-about .about-governance__stats {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-about .about-service__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero {
    min-height: 640px;
    display: grid;
    align-items: center;
  }
  .page-about .about-hero__content {
    max-width: 820px;
  }
  .page-about .about-hero__title {
    font-size: clamp(2.6rem, 5.5vw, 4.4rem);
  }
  .page-about .about-journey__lead {
    max-width: 620px;
  }
  .page-about .about-journey__artwrap {
    position: absolute;
    right: 6%;
    top: 120px;
    width: 260px;
    z-index: 0;
  }
  .page-about .about-journey__art {
    max-width: none;
  }
  .page-about .about-timeline {
    position: relative;
    z-index: 1;
    max-width: 860px;
    gap: 32px;
  }
  .page-about .about-timeline__item {
    grid-template-columns: 160px 1fr;
  }
  .page-about .about-timeline__item:nth-child(odd) {
    margin-right: 26%;
  }
  .page-about .about-timeline__item:nth-child(even) {
    margin-left: 26%;
  }
  .page-about .about-version-list {
    max-width: 760px;
  }
  .page-about .about-version-list__step {
    transition: margin-left var(--dur) var(--ease), background-color var(--dur) var(--ease);
  }
  .page-about .about-version-list__step:nth-child(2) {
    margin-left: 70px;
  }
  .page-about .about-version-list__step:nth-child(3) {
    margin-left: 140px;
  }
  .page-about .about-version-list__step:nth-child(4) {
    margin-left: 210px;
  }
  .page-about .about-version-list__step:nth-child(5) {
    margin-left: 280px;
  }
  .page-about .about-version-list__step:hover {
    background: rgba(255, 255, 255, 0.03);
  }
  .page-about .about-governance {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    column-gap: 64px;
    align-items: start;
  }
  .page-about .about-governance .section-tag,
  .page-about .about-governance .about-section-title,
  .page-about .about-governance__lead,
  .page-about .about-governance__art {
    grid-column: 1;
  }
  .page-about .about-review-list {
    grid-column: 2;
    grid-row: 2 / span 5;
    margin-top: 10px;
  }
  .page-about .about-governance__stats {
    grid-column: 1;
    margin-top: 36px;
  }
  .page-about .about-ecosystem {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 48px;
    align-items: center;
  }
  .page-about .about-ecosystem__badges {
    margin-top: 0;
    max-width: 220px;
    justify-content: center;
  }
}