.page-about {
  --ab-bg-alt: #e5e2da;
  --ab-bg-panel: #fffdf8;
  --ab-line-dark: rgba(11, 27, 61, 0.14);
  --ab-line-light: rgba(255, 255, 255, 0.16);
  --ab-white-muted: rgba(255, 255, 255, 0.78);
  --ab-num-size: clamp(4.2rem, 10vw, 8rem);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-about .ab-hero {
  position: relative;
  overflow: hidden;
}

.page-about .ab-hero::before {
  content: "";
  position: absolute;
  top: 16%;
  right: -80px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(0, 232, 143, 0.14) 0%, transparent 70%);
  pointer-events: none;
}

.page-about .ab-hero::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--highlight) 60%, transparent 100%);
  pointer-events: none;
}

.page-about .ab-hero-badge {
  margin-top: 24px;
}

.page-about .ab-hero-lead {
  max-width: 720px;
  margin-top: 18px;
  font-size: 1.05rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.86);
}

.page-about .ab-hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  width: fit-content;
  max-width: 100%;
  margin-top: 32px;
  border: 1px solid var(--ab-line-light);
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.03);
}

.page-about .ab-hero-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 10px;
  border-right: 1px solid var(--ab-line-light);
  text-align: center;
}

.page-about .ab-hero-stat:last-child {
  border-right: 0;
}

.page-about .ab-hero-num {
  font-family: var(--font-num);
  font-size: 1.7rem;
  font-weight: 900;
  line-height: 1;
  color: var(--accent);
}

.page-about .ab-hero-label {
  font-size: 0.7rem;
  line-height: 1.3;
  color: rgba(255, 255, 255, 0.72);
  letter-spacing: 0.04em;
}

.page-about .ab-nav-wrap {
  position: relative;
  z-index: 5;
  margin-top: -28px;
}

.page-about .ab-spy {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  background: var(--primary-deep);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-lg);
  scrollbar-width: none;
  padding: 0 6px;
}

.page-about .ab-spy::-webkit-scrollbar {
  display: none;
}

.page-about .ab-spy-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 14px;
  white-space: nowrap;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.86rem;
  font-weight: 700;
  text-decoration: none;
  border-bottom: 3px solid transparent;
  transition: color var(--time), border-color var(--time), background var(--time);
}

.page-about .ab-spy-link .ab-spy-num {
  font-family: var(--font-num);
  font-size: 0.76rem;
  font-weight: 800;
  color: var(--accent);
}

.page-about .ab-spy-link:hover {
  color: var(--white);
  background: rgba(255, 255, 255, 0.06);
}

.page-about .ab-spy-link[data-spy-active] {
  color: var(--white);
  border-bottom-color: var(--accent);
  background: rgba(0, 232, 143, 0.08);
}

.page-about .ab-chapter-head {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: clamp(48px, 8vw, 88px);
  padding-bottom: 28px;
}

.page-about .ab-chapter-num {
  display: inline-block;
  font-family: var(--font-num);
  font-size: var(--ab-num-size);
  font-weight: 900;
  line-height: 0.85;
  letter-spacing: -0.05em;
  color: rgba(11, 27, 61, 0.1);
  -webkit-text-stroke: 2px var(--ab-line-dark);
  transform: skewX(-4deg);
  transform-origin: left center;
}

.page-about .ab-chapter-title h2 {
  margin: 0;
  font-size: clamp(1.8rem, 4.6vw, 2.8rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--primary);
}

.page-about .ab-chapter-kicker {
  margin: 8px 0 0;
  color: var(--ash);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.04em;
}

.page-about .ab-story {
  background: var(--paper);
}

.page-about .ab-story-layout {
  display: grid;
  gap: 32px;
  padding-bottom: clamp(64px, 10vw, 120px);
}

.page-about .ab-story-copy p {
  max-width: 68ch;
  margin: 0 0 18px;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--ink);
}

.page-about .ab-story-lead {
  border-left: 4px solid var(--accent);
  padding-left: 20px;
  font-size: 1.18rem;
  font-weight: 600;
  line-height: 1.65;
  color: var(--primary);
}

.page-about .ab-story-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  align-content: start;
}

.page-about .ab-fact {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 16px;
  background: var(--ab-bg-panel);
  border-top: 3px solid var(--accent);
  box-shadow: var(--shadow);
}

.page-about .ab-fact-num {
  font-family: var(--font-num);
  font-size: 1.8rem;
  font-weight: 900;
  line-height: 1;
  color: var(--primary);
}

.page-about .ab-fact-label {
  color: var(--ash);
  font-size: 0.84rem;
  line-height: 1.45;
}

.page-about .ab-history {
  background: var(--ab-bg-alt);
}

.page-about .ab-timeline-wrap {
  padding-bottom: clamp(64px, 10vw, 120px);
}

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

.page-about .ab-timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 72px 22px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 34px;
}

.page-about .ab-timeline-item::before {
  content: "";
  position: absolute;
  left: 97px;
  top: 26px;
  bottom: -2px;
  width: 2px;
  background: var(--ab-line-dark);
}

.page-about .ab-timeline-item:last-child::before {
  display: none;
}

.page-about .ab-timeline-year {
  padding-top: 2px;
  font-family: var(--font-num);
  font-size: 1.25rem;
  font-weight: 900;
  line-height: 1.2;
  color: var(--primary);
  text-align: right;
}

.page-about .ab-timeline-dot {
  width: 14px;
  height: 14px;
  margin-top: 6px;
  border: 3px solid var(--ab-bg-alt);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 2px var(--accent);
  z-index: 1;
}

.page-about .ab-timeline-body {
  padding: 18px 20px;
  background: var(--ab-bg-panel);
  border-left: 3px solid var(--highlight);
  box-shadow: var(--shadow);
}

.page-about .ab-timeline-body h3 {
  margin: 0 0 8px;
  font-size: 1.12rem;
  font-weight: 900;
  color: var(--primary);
}

.page-about .ab-timeline-body p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.65;
  color: var(--ink);
}

.page-about .ab-timeline-visual {
  margin: 24px 0 0;
  padding: 8px;
  background: var(--primary-deep);
  box-shadow: var(--shadow-lg);
}

.page-about .ab-timeline-visual img,
.page-about .ab-team-visual img,
.page-about .ab-trust-visual img {
  display: block;
  width: 100%;
  height: auto;
}

.page-about figcaption {
  margin-top: 12px;
  font-size: 0.84rem;
  color: var(--ash);
  letter-spacing: 0.02em;
}

.page-about .ab-team {
  background: var(--paper);
}

.page-about .ab-team-grid {
  display: grid;
  gap: 16px;
  padding-bottom: 48px;
}

.page-about .ab-team-card {
  position: relative;
  padding: 28px 22px 24px;
  background: var(--ab-bg-panel);
  border-top: 3px solid var(--accent);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.page-about .ab-team-card:nth-child(even) {
  transform: translateY(12px);
}

.page-about .ab-team-code {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: 18px;
  border-radius: 12px 2px 12px 2px;
  background: linear-gradient(135deg, var(--accent) 0%, #9af5d0 100%);
  font-family: var(--font-num);
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--primary);
}

.page-about .ab-team-card h3 {
  margin: 0 0 10px;
  font-size: 1.16rem;
  font-weight: 900;
  color: var(--primary);
}

.page-about .ab-team-card p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--ink);
}

.page-about .ab-team-visual {
  position: relative;
  margin: 40px 0 0;
}

.page-about .ab-team-visual::after {
  content: "";
  position: absolute;
  right: -12px;
  bottom: 42px;
  width: 46%;
  height: 12px;
  background: var(--accent);
  clip-path: polygon(0 40%, 100% 0, 100% 100%, 0 100%);
}

.page-about .ab-trust {
  background: var(--primary);
}

.page-about .ab-trust .ab-chapter-num {
  color: rgba(255, 255, 255, 0.18);
  -webkit-text-stroke-color: rgba(255, 255, 255, 0.45);
}

.page-about .ab-trust .ab-chapter-title h2 {
  color: var(--white);
}

.page-about .ab-trust .ab-chapter-kicker {
  color: var(--ab-white-muted);
}

.page-about .ab-trust-layout {
  display: grid;
  gap: 36px;
  padding-bottom: clamp(72px, 10vw, 120px);
}

.page-about .ab-trust-grid {
  display: grid;
  gap: 16px;
}

.page-about .ab-trust-item {
  padding: 22px 24px;
  background: rgba(255, 255, 255, 0.06);
  border-left: 3px solid var(--accent);
  backdrop-filter: blur(4px);
}

.page-about .ab-trust-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 14px;
  border-radius: 2px;
  background: var(--accent);
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--primary);
  transform: skewX(-6deg);
}

.page-about .ab-trust-item h3 {
  margin: 0 0 8px;
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--white);
}

.page-about .ab-trust-item p {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.7;
  color: var(--ab-white-muted);
}

.page-about .ab-trust-visual {
  width: 100%;
  max-width: 620px;
  margin: 0 auto;
}

.page-about .ab-trust figcaption {
  color: var(--ab-white-muted);
}

.page-about .ab-principles {
  background: var(--ab-bg-alt);
}

.page-about .ab-principles-grid {
  display: grid;
  gap: 20px;
  padding-bottom: 40px;
}

.page-about .ab-principle-card {
  position: relative;
  padding: 28px 24px 24px;
  background: var(--paper);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.page-about .ab-principle-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, transparent 50%, var(--accent) 50%);
}

.page-about .ab-principle-no {
  font-family: var(--font-num);
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--highlight);
}

.page-about .ab-principle-card h3 {
  margin: 10px 0 10px;
  font-size: 1.2rem;
  font-weight: 900;
  color: var(--primary);
}

.page-about .ab-principle-card p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--ink);
}

.page-about .ab-cta {
  padding-bottom: clamp(72px, 10vw, 120px);
}

.page-about .ab-cta-inner {
  position: relative;
  padding: clamp(36px, 6vw, 64px);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%);
  color: var(--white);
  overflow: hidden;
}

.page-about .ab-cta-inner::before {
  content: "";
  position: absolute;
  right: -20px;
  bottom: -30px;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(0, 232, 143, 0.16) 0%, transparent 70%);
  pointer-events: none;
}

.page-about .ab-cta-inner h2 {
  position: relative;
  z-index: 1;
  margin: 0 0 12px;
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 900;
  letter-spacing: -0.02em;
}

.page-about .ab-cta-inner p {
  position: relative;
  z-index: 1;
  max-width: 48ch;
  margin: 0 0 24px;
  color: var(--ab-white-muted);
}

.page-about .ab-cta-actions {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 480px) {
  .page-about .ab-hero-stat {
    padding: 16px 20px;
  }

  .page-about .ab-hero-num {
    font-size: 2rem;
  }

  .page-about .ab-hero-label {
    font-size: 0.74rem;
  }

  .page-about .ab-fact {
    padding: 20px 18px;
  }
}

@media (min-width: 768px) {
  .page-about .ab-spy {
    padding: 0 10px;
  }

  .page-about .ab-spy-link {
    padding: 15px 18px;
  }

  .page-about .ab-chapter-head {
    flex-direction: row;
    align-items: flex-end;
    gap: 32px;
    padding-top: 72px;
  }

  .page-about .ab-chapter-title {
    padding-bottom: 12px;
  }

  .page-about .ab-story-layout {
    grid-template-columns: 1.6fr 1fr;
    align-items: start;
  }

  .page-about .ab-story-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .page-about .ab-timeline-item {
    grid-template-columns: 96px 22px minmax(0, 1fr);
    gap: 20px;
  }

  .page-about .ab-timeline-item::before {
    left: 130px;
  }

  .page-about .ab-timeline-year {
    font-size: 1.4rem;
  }

  .page-about .ab-team-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

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

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

@media (min-width: 1024px) {
  .page-about .ab-hero-lead {
    font-size: 1.12rem;
  }

  .page-about .ab-story-layout {
    gap: 56px;
  }

  .page-about .ab-story-copy p {
    font-size: 1.04rem;
  }

  .page-about .ab-timeline-wrap {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    gap: 48px;
    align-items: start;
  }

  .page-about .ab-timeline-visual {
    margin-top: 0;
    position: sticky;
    top: 24px;
  }

  .page-about .ab-team-visual {
    margin-top: 56px;
  }

  .page-about .ab-trust-layout {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: center;
  }
}