.page-about {
  --ab-gold-line: rgba(212, 175, 55, .38);
  --ab-soft-border: rgba(255, 255, 255, .16);
  --ab-muted: #486079;
  --ab-code: #f5f7fa;
  background: var(--color-light);
  color: var(--color-dark);
  scroll-behavior: smooth;
}

.page-about .breadcrumbs {
  max-width: 1280px;
  margin: 0 auto;
  padding: 20px 20px 0;
}

.page-about .about-hero {
  position: relative;
  background: var(--color-primary);
  color: var(--color-text-light);
  padding: 40px 20px 68px;
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), 0 100%);
}

.page-about .about-hero__index {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--color-gold);
  margin-bottom: 22px;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(212, 175, 55, .4);
}

.page-about .about-hero__inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-about .about-hero h1 {
  font-family: var(--font-head);
  font-size: 42px;
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: .02em;
  margin: 0 0 14px;
  color: var(--color-text-light);
  text-transform: uppercase;
}

.page-about .about-hero__slogan {
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-accent);
  margin: 0 0 18px;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.page-about .about-hero__lead {
  font-size: 16px;
  line-height: 1.7;
  color: rgba(255, 255, 255, .84);
  max-width: 54ch;
  margin: 0 0 28px;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-about .about-hero__visual {
  position: relative;
  min-height: 180px;
  display: flex;
  align-items: flex-end;
  padding: 24px 20px;
  border: 1px solid rgba(212, 175, 55, .28);
  background-image:
    linear-gradient(rgba(212, 175, 55, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212, 175, 55, .08) 1px, transparent 1px);
  background-size: 36px 36px;
}

.page-about .about-hero__year-block {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 14px;
  position: relative;
  z-index: 2;
}

.page-about .about-hero__year {
  font-family: var(--font-head);
  font-size: 56px;
  font-weight: 900;
  line-height: 1;
  color: var(--color-text-light);
}

.page-about .about-hero__year-divider {
  display: inline-block;
  width: 44px;
  height: 3px;
  background: var(--color-accent);
}

.page-about .about-hero__year-label {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--color-gold);
  text-transform: uppercase;
}

.page-about .about-hero__corner {
  position: absolute;
  top: 0;
  right: 0;
  width: 84px;
  height: 84px;
  background: var(--color-accent);
  clip-path: polygon(100% 0, 0 0, 100% 100%);
  opacity: .9;
}

.page-about .about-layout {
  max-width: 1280px;
  margin: 0 auto;
  padding: 40px 20px 72px;
}

.page-about .about-toc {
  background: var(--color-primary);
  color: var(--color-text-light);
  padding: 20px;
  margin-bottom: 36px;
  border-radius: 4px;
  position: relative;
}

.page-about .about-toc__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-about .about-toc__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  font-size: 15px;
  font-weight: 600;
  color: rgba(255, 255, 255, .84);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color .25s var(--ease-out), background-color .25s var(--ease-out), border-color .25s var(--ease-out);
}

.page-about .about-toc__link:hover,
.page-about .about-toc__link:focus-visible {
  color: var(--color-text-light);
  background: rgba(255, 255, 255, .06);
  border-left-color: var(--color-accent);
}

.page-about .about-toc__num {
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 700;
  color: var(--color-gold);
}

.page-about .about-toc__note {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, .12);
}

.page-about .about-toc__note-title {
  display: block;
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 8px;
}

.page-about .about-toc__note p {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(255, 255, 255, .72);
}

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

.page-about .about-section {
  margin-bottom: 56px;
}

.page-about .about-section__header {
  margin-bottom: 24px;
}

.page-about .about-section__header h2 {
  font-family: var(--font-head);
  font-size: 32px;
  font-weight: 900;
  line-height: 1.1;
  color: var(--color-dark);
  margin: 8px 0 12px;
  text-transform: uppercase;
  letter-spacing: .02em;
}

.page-about .about-section__lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--ab-muted);
  max-width: 60ch;
}

.page-about .about-figure {
  margin: 24px 0 32px;
}

.page-about .about-figure__frame {
  border: 1px solid var(--ab-gold-line);
  background: var(--color-primary);
  overflow: hidden;
}

.page-about .about-figure__frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform .4s var(--ease-out);
}

.page-about .about-figure:hover .about-figure__frame img {
  transform: scale(1.015);
}

.page-about .about-figure .img-caption {
  margin-top: 8px;
  font-size: 13px;
  color: #71809a;
}

.page-about .about-timeline {
  position: relative;
  list-style: none;
  margin: 12px 0 0;
  padding: 0 0 0 44px;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-gold), rgba(212, 175, 55, .18));
}

.page-about .about-timeline__item {
  position: relative;
  padding-left: 20px;
  padding-bottom: 44px;
}

.page-about .about-timeline__item:last-child {
  padding-bottom: 0;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -36px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 3px solid var(--color-light);
  box-sizing: border-box;
  box-shadow: 0 0 0 2px rgba(255, 107, 0, .35);
  transition: transform .3s var(--ease-out), box-shadow .3s var(--ease-out);
}

.page-about .about-timeline__item:hover::before {
  transform: scale(1.25);
  box-shadow: 0 0 0 4px rgba(255, 107, 0, .25);
}

.page-about .about-timeline__period {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--color-gold);
  background: var(--color-light);
  padding: 3px 8px;
  border: 1px solid var(--ab-gold-line);
  margin-bottom: 8px;
}

.page-about .about-timeline__badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-left: 10px;
}

.page-about .about-timeline__content {
  background: #ffffff;
  border: 1px solid #e3e9f2;
  border-left: 3px solid var(--color-gold);
  border-radius: 4px;
  padding: 18px 20px;
  transition: border-color .3s var(--ease-out), box-shadow .3s var(--ease-out), transform .3s var(--ease-out);
}

.page-about .about-timeline__item:hover .about-timeline__content {
  border-left-color: var(--color-accent);
  box-shadow: 0 8px 24px rgba(10, 31, 68, .08);
  transform: translateX(4px);
}

.page-about .about-timeline__content h3 {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 800;
  color: var(--color-primary);
  margin: 0 0 8px;
}

.page-about .about-timeline__content p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: #3a4a63;
}

.page-about .about-section--data {
  background: var(--color-primary);
  color: var(--color-text-light);
  padding: 28px 20px;
  margin-bottom: 56px;
  position: relative;
  overflow: hidden;
  border-radius: 4px;
}

.page-about .about-section--data::before {
  content: "";
  position: absolute;
  top: -70px;
  right: -70px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(212, 175, 55, .2), transparent 70%);
  pointer-events: none;
}

.page-about .about-section--data .about-section__header h2 {
  color: var(--color-text-light);
}

.page-about .about-section--data .about-section__lead {
  color: rgba(255, 255, 255, .72);
}

.page-about .about-section--data .meta-index {
  color: var(--color-gold);
}

.page-about .about-data {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 24px 0;
  position: relative;
  z-index: 1;
}

.page-about .about-data__card {
  background: rgba(255, 255, 255, .06);
  border-top: 2px solid var(--color-gold);
  border-radius: 3px;
  padding: 18px 16px;
  transition: background-color .3s var(--ease-out), border-color .3s var(--ease-out), transform .3s var(--ease-out);
}

.page-about .about-data__card:hover {
  background: rgba(255, 255, 255, .1);
  border-top-color: var(--color-accent);
  transform: translateY(-4px);
}

.page-about .about-data__num {
  display: block;
  font-family: var(--font-head);
  font-size: 36px;
  font-weight: 900;
  line-height: 1;
  color: var(--color-text-light);
}

.page-about .about-data__suffix {
  font-size: 20px;
  color: var(--color-accent);
  margin-left: 2px;
}

.page-about .about-data__label {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, .65);
  letter-spacing: .06em;
}

.page-about .about-figure__frame--tall img {
  max-height: 520px;
  object-fit: cover;
  width: 100%;
}

.page-about .about-note {
  background: rgba(255, 255, 255, .06);
  border: 1px solid var(--ab-soft-border);
  border-radius: 4px;
  padding: 18px 20px;
  margin-top: 8px;
  position: relative;
  z-index: 1;
}

.page-about .about-note__title {
  display: block;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 8px;
}

.page-about .about-note p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, .82);
}

.page-about .about-certs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .about-certs__item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: #ffffff;
  border: 1px solid #e3e9f2;
  border-left: 3px solid var(--color-gold);
  border-radius: 4px;
  padding: 18px 20px;
  transition: border-color .3s var(--ease-out), box-shadow .3s var(--ease-out);
}

.page-about .about-certs__item:hover {
  border-left-color: var(--color-accent);
  box-shadow: 0 8px 24px rgba(10, 31, 68, .08);
}

.page-about .about-certs__badge {
  flex: 0 0 auto;
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .04em;
  color: var(--color-primary);
  background: var(--color-light);
  border: 1px solid var(--color-gold);
  border-radius: 3px;
  padding: 6px 12px;
  transition: background-color .3s var(--ease-out), color .3s var(--ease-out);
}

.page-about .about-certs__item:hover .about-certs__badge {
  background: var(--color-primary);
  color: var(--color-text-light);
}

.page-about .about-certs__info strong {
  display: block;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.page-about .about-certs__info p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: #3a4a63;
}

.page-about .about-section--philosophy {
  background: var(--color-burgundy);
  color: var(--color-text-light);
  padding: 36px 20px;
  border-radius: 4px;
  position: relative;
  overflow: hidden;
  margin-bottom: 24px;
}

.page-about .about-section--philosophy::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 180px;
  height: 180px;
  background: linear-gradient(135deg, transparent 0%, transparent 45%, rgba(212, 175, 55, .18) 50%, transparent 55%);
  background-size: 24px 24px;
  pointer-events: none;
}

.page-about .about-section--philosophy .meta-index {
  color: var(--color-gold);
}

.page-about .about-section--philosophy .about-section__header h2 {
  color: var(--color-text-light);
}

.page-about .about-quote {
  position: relative;
  margin: 0 0 32px;
  padding: 24px 0 16px 24px;
  border-left: 3px solid var(--color-accent);
}

.page-about .about-quote__mark {
  display: block;
  font-family: var(--font-head);
  font-size: 64px;
  line-height: 1;
  color: var(--color-accent);
  margin-bottom: -14px;
}

.page-about .about-quote p {
  font-family: var(--font-head);
  font-size: 26px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-text-light);
  margin: 0;
}

.page-about .about-quote__source {
  display: block;
  margin-top: 12px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--color-gold);
}

.page-about .about-philosophy {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  position: relative;
  z-index: 1;
}

.page-about .about-philosophy__item {
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 4px;
  padding: 18px 20px;
  transition: background-color .3s var(--ease-out), border-color .3s var(--ease-out);
}

.page-about .about-philosophy__item:hover {
  background: rgba(255, 255, 255, .12);
  border-color: rgba(212, 175, 55, .5);
}

.page-about .about-philosophy__num {
  display: block;
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 700;
  color: var(--color-gold);
  letter-spacing: .14em;
  margin-bottom: 8px;
}

.page-about .about-philosophy__item h3 {
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 800;
  color: var(--color-text-light);
  margin: 0 0 8px;
}

.page-about .about-philosophy__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, .75);
}

.page-about .about-cta {
  position: relative;
  z-index: 1;
  text-align: center;
  margin-top: 36px;
  border-top: 1px solid rgba(255, 255, 255, .16);
  padding-top: 28px;
}

.page-about .about-cta h3 {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 800;
  color: var(--color-text-light);
  margin: 0 0 18px;
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

.page-about .about-section--philosophy .btn--ghost {
  border-color: rgba(255, 255, 255, .7);
  color: var(--color-text-light);
}

.page-about .about-section--philosophy .btn--ghost:hover {
  background: rgba(255, 255, 255, .12);
  border-color: var(--color-text-light);
}

@media (min-width: 992px) {
  .page-about .about-hero {
    padding: 72px 24px 104px;
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 48px), 0 100%);
  }

  .page-about .about-hero__inner {
    grid-template-columns: 1.1fr .9fr;
    align-items: center;
    gap: 48px;
  }

  .page-about .about-hero h1 {
    font-size: 64px;
    letter-spacing: .01em;
  }

  .page-about .about-hero__slogan {
    font-size: 24px;
  }

  .page-about .about-hero__lead {
    font-size: 17px;
  }

  .page-about .about-hero__visual {
    min-height: 320px;
    align-items: flex-end;
    padding: 36px 32px;
  }

  .page-about .about-hero__year {
    font-size: 108px;
  }

  .page-about .about-hero__corner {
    width: 120px;
    height: 120px;
  }

  .page-about .about-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 48px;
    align-items: start;
    padding: 56px 24px 96px;
  }

  .page-about .about-toc {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    margin-bottom: 0;
    padding: 24px;
  }

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

  .page-about .about-section {
    margin-bottom: 88px;
  }

  .page-about .about-section__header {
    margin-bottom: 28px;
  }

  .page-about .about-section__header h2 {
    font-size: 40px;
  }

  .page-about .about-figure {
    margin: 28px 0 36px;
  }

  .page-about .about-timeline {
    padding-left: 64px;
  }

  .page-about .about-timeline::before {
    left: 18px;
  }

  .page-about .about-timeline__item {
    padding-left: 32px;
    padding-bottom: 56px;
  }

  .page-about .about-timeline__item::before {
    left: -52px;
    width: 16px;
    height: 16px;
  }

  .page-about .about-timeline__content {
    padding: 22px 24px;
  }

  .page-about .about-section--data {
    padding: 44px 40px;
    margin-bottom: 88px;
  }

  .page-about .about-data {
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    margin: 28px 0 36px;
  }

  .page-about .about-data__num {
    font-size: 44px;
  }

  .page-about .about-data__label {
    font-size: 15px;
  }

  .page-about .about-figure__frame--tall img {
    max-height: 600px;
  }

  .page-about .about-note {
    padding: 20px 24px;
  }

  .page-about .about-certs {
    gap: 18px;
  }

  .page-about .about-certs__item {
    padding: 22px 24px;
  }

  .page-about .about-section--philosophy {
    padding: 52px 44px;
  }

  .page-about .about-quote p {
    font-size: 34px;
  }

  .page-about .about-philosophy {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .page-about .about-philosophy__item {
    padding: 22px 24px;
  }

  .page-about .about-cta {
    margin-top: 44px;
  }
}