.page-about {
  position: relative;
  background-color: var(--color-bg);
  background-image:
    linear-gradient(var(--color-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-line) 1px, transparent 1px),
    radial-gradient(circle at 15% 5%, rgba(0, 229, 255, 0.1), transparent 180px);
  background-size: 36px 36px, 36px 36px, auto;
  color: var(--color-ink);
  font-family: var(--font-serif);
  line-height: 1.75;
  scroll-behavior: smooth;
}

.page-about__inner {
  max-width: 1320px;
  margin: 0 auto;
  padding: 28px 16px 72px;
}

@media (min-width: 1024px) {
  .page-about__inner {
    display: grid;
    grid-template-columns: minmax(240px, 280px) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
    padding: 48px 48px 96px;
  }
}

.page-about__side {
  position: relative;
  margin-bottom: 28px;
  padding: 24px 20px 22px;
  border-radius: var(--radius-lg);
  background: linear-gradient(155deg, var(--color-night) 0%, var(--color-navy) 100%);
  border: 1px solid rgba(0, 229, 255, 0.18);
  color: #fff;
  box-shadow: 0 16px 40px rgba(11, 27, 58, 0.2);
  overflow: hidden;
}

.page-about__side::before {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.3), transparent 70%);
}

.page-about__side::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 10px;
  height: 1px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-cyan), transparent);
}

@media (min-width: 1024px) {
  .page-about__side {
    position: sticky;
    top: 96px;
    margin-bottom: 0;
    padding: 28px 24px 28px;
  }
}

.page-about__side-kicker {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-cyan);
}

.page-about__side-title {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: 800;
  color: #fff;
}

.page-about__toc {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  counter-reset: toc;
  position: relative;
  z-index: 1;
}

.page-about__toc li {
  counter-increment: toc;
}

.page-about__toc a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.18);
  color: rgba(255, 255, 255, 0.82);
  font-family: var(--font-sans);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.page-about__toc a::before {
  content: counter(toc, decimal-leading-zero);
  min-width: 26px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-gold);
  letter-spacing: 0.06em;
}

.page-about__toc a:hover {
  color: var(--color-gold);
  padding-left: 4px;
}

.page-about__side-note {
  position: relative;
  z-index: 1;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 13px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.75);
}

.page-about__side-note strong {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-sans);
  color: var(--color-gold);
}

.page-about__content {
  min-width: 0;
}

.page-about .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--color-slate);
}

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

.page-about .breadcrumbs a:hover {
  text-decoration: underline;
}

.page-about__head {
  margin-bottom: 16px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-line);
}

.page-about__head-title {
  margin: 0 0 12px;
  font-family: var(--font-sans);
  font-size: clamp(34px, 6vw, 56px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-night);
}

.page-about__head-intro {
  max-width: 720px;
  margin: 0;
  font-size: 17px;
  line-height: 1.8;
  color: var(--color-slate);
}

.page-about__section {
  margin-top: 56px;
  scroll-margin-top: 110px;
}

.page-about__section-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
}

.page-about__section-num {
  flex: none;
  padding: 6px 10px;
  border-radius: 8px;
  background: var(--color-night);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-gold);
}

.page-about__section-head h2 {
  margin: 0;
  font-family: var(--font-sans);
  font-size: clamp(24px, 4vw, 32px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-night);
}

.page-about__who-grid {
  display: grid;
  gap: 24px;
}

@media (min-width: 768px) {
  .page-about__who-grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
  }
}

.page-about__who-text p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-ink);
}

.page-about__who-text blockquote {
  margin: 24px 0;
  padding: 16px 20px;
  border-left: 4px solid var(--color-gold);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: rgba(242, 183, 5, 0.1);
  font-family: var(--font-sans);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--color-navy);
}

.page-about__figure {
  margin: 0;
  padding: 4px;
  border-radius: var(--radius-md);
  background: var(--color-navy);
  border: 1px solid var(--color-line);
}

.page-about__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: calc(var(--radius-md) - 4px);
  object-fit: cover;
}

.page-about__timeline {
  position: relative;
  margin-top: 28px;
  padding-left: 32px;
}

.page-about__tl-line {
  position: absolute;
  left: 10px;
  top: 2px;
  bottom: 4px;
  border-left: 2px dashed rgba(242, 183, 5, 0.55);
  box-shadow: 2px 0 0 rgba(0, 229, 255, 0.15);
}

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

.page-about__tl-item {
  position: relative;
  padding-left: 20px;
  padding-bottom: 28px;
}

.page-about__tl-item:last-child {
  padding-bottom: 0;
}

.page-about__tl-dot {
  position: absolute;
  left: -28px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-gold);
  box-shadow: 0 0 0 4px rgba(242, 183, 5, 0.18), 0 0 12px rgba(0, 229, 255, 0.35);
}

.page-about__tl-card {
  border: 1px solid var(--color-line);
  border-left: 4px solid var(--color-gold);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  background: rgba(255, 255, 255, 0.88);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.page-about__tl-card h3 {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-navy);
}

.page-about__tl-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-slate);
}

.page-about__tl-item:hover .page-about__tl-card {
  transform: translateX(4px);
  border-color: var(--color-cyan);
  box-shadow: 0 12px 24px rgba(11, 27, 58, 0.1);
}

.page-about__team {
  display: block;
}

@media (min-width: 1024px) {
  .page-about__team {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 24px;
    align-items: start;
  }
}

.page-about__team-blocks {
  display: grid;
  gap: 16px;
}

@media (min-width: 640px) {
  .page-about__team-blocks {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about__team-block--large,
  .page-about__team-block--violet {
    grid-column: span 2;
  }
}

.page-about__team-block {
  border-radius: var(--radius-md);
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: var(--color-navy);
  color: #fff;
}

.page-about__team-block--large {
  background: linear-gradient(135deg, var(--color-night), var(--color-navy));
}

.page-about__team-block--orange {
  background: var(--color-orange);
  border-color: rgba(255, 255, 255, 0.25);
}

.page-about__team-block--outline {
  background: transparent;
  border: 1px dashed var(--color-line);
  color: var(--color-ink);
}

.page-about__team-block--violet {
  background: linear-gradient(135deg, var(--color-violet), var(--color-navy));
}

.page-about__team-stat {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 40px;
  font-weight: 800;
  line-height: 1;
  color: var(--color-gold);
}

.page-about__team-block p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
}

.page-about__team .page-about__figure {
  margin-top: 20px;
}

@media (min-width: 1024px) {
  .page-about__team .page-about__figure {
    margin-top: 0;
  }
}

.page-about__quality {
  display: grid;
  gap: 16px;
}

@media (min-width: 640px) {
  .page-about__quality {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-about__quality-card {
  position: relative;
  padding: 22px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: #fff;
}

.page-about__quality-card::after {
  content: "";
  position: absolute;
  right: 16px;
  top: 16px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-cyan);
  box-shadow: 0 0 0 4px rgba(0, 229, 255, 0.15);
}

.page-about__quality-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-navy);
}

.page-about__quality-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-slate);
}

.page-about__data-chart {
  margin: 24px 0 12px;
}

.page-about__data-chart img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-line);
  object-fit: cover;
  background: var(--color-night);
}

.page-about__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 640px) {
  .page-about__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-about__stats li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  justify-content: center;
  padding: 18px 12px;
  border-radius: var(--radius-md);
  background: var(--color-night);
  text-align: center;
}

.page-about__stat-num {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-gold);
}

.page-about__stats span {
  font-family: var(--font-sans);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
}

.page-about__data-note {
  margin-top: 18px;
  padding: 12px 16px;
  border-left: 3px solid var(--color-engine);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: rgba(15, 42, 95, 0.06);
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-slate);
}

.page-about__data-note a {
  color: var(--color-engine);
  text-decoration: underline;
}

.page-about__cta {
  margin-top: 68px;
  padding: 32px 22px;
  border: 1px solid rgba(0, 229, 255, 0.25);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-night) 100%);
  color: #fff;
  text-align: center;
}

.page-about__cta h2 {
  margin: 0 0 8px;
  font-family: var(--font-sans);
  font-size: 26px;
  font-weight: 800;
  color: #fff;
}

.page-about__cta p {
  max-width: 520px;
  margin: 0 auto 18px;
  font-size: 15px;
  line-height: 1.7;
  opacity: 0.85;
}

.page-about__cta p a {
  color: var(--color-cyan);
  text-decoration: underline;
}

.page-about__cta .btn {
  display: inline-block;
  margin: 4px 8px;
  padding: 12px 24px;
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-about__cta .btn--primary {
  background: var(--color-gold);
  color: var(--color-night);
}

.page-about__cta .btn--primary:hover {
  background: var(--color-cyan);
  color: var(--color-night);
}

.page-about__cta .btn--ghost {
  border: 1px solid rgba(255, 255, 255, 0.6);
  color: #fff;
}

.page-about__cta .btn--ghost:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}