.page-about {
  --tl-dot: 18px;
  --tl-line-width: 2px;
  --data-border-h: 4px;
  --hero-grid-size: 72px;
  overflow-x: hidden;
}

.page-about .about-hero {
  position: relative;
  background:
    radial-gradient(ellipse at 88% -8%, rgba(26, 54, 93, 0.55) 0%, transparent 58%),
    linear-gradient(180deg, #0A1929 0%, #0D2440 100%);
  border-bottom: 3px solid #F7B733;
  padding: 24px 16px 0;
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.032) 0 1px, transparent 1px var(--hero-grid-size)),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.032) 0 1px, transparent 1px var(--hero-grid-size));
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: -36px;
  bottom: -4px;
  width: min(46vw, 360px);
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(247, 183, 51, 0.7) 52%, #FF6B35);
  transform: rotate(-8deg);
  transform-origin: right bottom;
  z-index: 2;
}

.page-about .about-hero-inner,
.page-about .about-hero-figure {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin-inline: auto;
}

.page-about .about-hero .breadcrumb {
  position: relative;
  z-index: 3;
  max-width: 1280px;
  margin: 0 auto 28px;
  padding: 0;
  color: rgba(255, 255, 255, 0.5);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
}

.page-about .about-hero .breadcrumb a {
  color: rgba(255, 255, 255, 0.82);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-about .about-hero .breadcrumb a:hover {
  color: #F7B733;
}

.page-about .about-hero-kicker {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
}

.page-about .about-hero h1 {
  max-width: 16em;
  margin: 0 0 20px;
  color: #FFFFFF;
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.page-about .about-title-delim {
  display: inline-block;
  margin: 0 0.14em;
  color: #F7B733;
  font-family: var(--font-mono);
  font-weight: 500;
  transform: skewX(-14deg);
}

.page-about .about-hero-lede {
  max-width: 720px;
  margin: 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: clamp(1rem, 2vw, 1.25rem);
  line-height: 1.85;
}

.page-about .about-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 40px;
  margin: 28px 0 0;
  padding: 18px 0 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.page-about .about-hero-meta div {
  min-width: 116px;
}

.page-about .about-hero-meta dt {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
}

.page-about .about-hero-meta dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 700;
  color: #F7B733;
}

.page-about .about-hero-figure {
  margin: 0;
  position: relative;
}

.page-about .about-hero-figure::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 25, 41, 0.32) 0%, rgba(10, 25, 41, 0) 30%, #091828 100%);
  z-index: 1;
  pointer-events: none;
}

.page-about .about-hero-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  opacity: 0.9;
}

.page-about .about-content > section {
  padding: 48px 16px;
}

.page-about .about-content > section > * {
  max-width: 1280px;
  margin-inline: auto;
}

.page-about .about-section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 36px;
  padding-bottom: 14px;
  border-bottom: 1px solid #E5E7EB;
}

.page-about .about-section-head h2 {
  flex-basis: 100%;
  margin: 2px 0 0;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.12;
  color: #111827;
}

.page-about .about-section-head h2::before {
  content: "";
  display: inline-block;
  width: 12px;
  height: 0.58em;
  margin-right: 12px;
  background: #F7B733;
  vertical-align: baseline;
}

.page-about .about-section-num {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #F7B733;
  background: #0A1929;
  padding: 5px 12px;
}

.page-about .about-section-en {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #6B7280;
}

.page-about .about-mission {
  background: #FFFFFF;
}

.page-about .about-mission-statement {
  display: grid;
  gap: 28px;
}

.page-about .about-mission-quote {
  margin: 0;
  font-size: clamp(1.375rem, 3vw, 2rem);
  font-weight: 900;
  line-height: 1.4;
  color: #0A1929;
  border-left: 5px solid #F7B733;
  padding-left: 20px;
}

.page-about .about-mission-copy p {
  margin: 0 0 16px;
  color: #1F2937;
  line-height: 1.85;
  font-size: 0.9688rem;
}

.page-about .about-mission-copy strong {
  color: #0A1929;
}

.page-about .about-journey {
  background: #F9FAFB;
  border-top: 1px solid #E5E7EB;
  border-bottom: 1px solid #E5E7EB;
}

.page-about .about-journey-grid {
  display: grid;
  gap: 40px;
}

.page-about .about-journey-aside > p {
  margin: 0 0 24px;
  padding-top: 16px;
  border-top: 2px solid #0A1929;
  color: #6B7280;
  font-size: 1rem;
  line-height: 1.8;
}

.page-about .about-journey-figure {
  margin: 0;
}

.page-about .about-journey-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid #E5E7EB;
  background: #FFFFFF;
}

.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 4px 0 0;
  position: relative;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: calc((var(--tl-dot) - var(--tl-line-width)) / 2);
  top: 10px;
  bottom: 10px;
  width: var(--tl-line-width);
  background: linear-gradient(180deg, #F7B733 0%, #E5E7EB 34%);
}

.page-about .about-tl-item {
  position: relative;
  padding-left: 56px;
  margin-bottom: 28px;
}

.page-about .about-tl-item:last-child {
  margin-bottom: 0;
}

.page-about .about-tl-dot {
  position: absolute;
  left: 0;
  top: 6px;
  width: var(--tl-dot);
  height: var(--tl-dot);
  background: #FFFFFF;
  border: 3px solid #E5E7EB;
  transform: rotate(45deg);
  z-index: 1;
  transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-about .about-tl-card {
  background: #FFFFFF;
  border: 1px solid #E5E7EB;
  border-left: 3px solid #D1D5DB;
  padding: 20px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.page-about .about-tl-item:hover .about-tl-dot,
.page-about .about-tl-item:focus-within .about-tl-dot {
  background: #F7B733;
  border-color: #F7B733;
  box-shadow: 0 0 0 5px rgba(247, 183, 51, 0.18);
}

.page-about .about-tl-item:hover .about-tl-card,
.page-about .about-tl-item:focus-within .about-tl-card {
  border-color: #6B7280;
  border-left-color: #F7B733;
  transform: translateX(4px);
  box-shadow: 0 12px 32px rgba(10, 25, 41, 0.08);
}

.page-about .about-tl-item-current .about-tl-dot {
  background: #F7B733;
  border-color: #F7B733;
}

.page-about .about-tl-item-current .about-tl-card {
  border-left-color: #F7B733;
}

.page-about .about-tl-card h3 {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 10px;
  font-size: 1.25rem;
  font-weight: 800;
  color: #0A1929;
}

.page-about .about-tl-badge {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #FF6B35;
  border: 1px solid currentColor;
  padding: 2px 8px;
}

.page-about .about-tl-card p {
  margin: 0;
  color: #1F2937;
  font-size: 0.9375rem;
  line-height: 1.8;
}

.page-about .about-feedback {
  background: linear-gradient(135deg, #0A1929 0%, #1A365D 100%);
  color: rgba(255, 255, 255, 0.78);
}

.page-about .about-feedback .about-section-head {
  border-bottom-color: rgba(255, 255, 255, 0.12);
}

.page-about .about-feedback .about-section-head h2 {
  color: #FFFFFF;
}

.page-about .about-feedback .about-section-en {
  color: rgba(255, 255, 255, 0.4);
}

.page-about .about-feedback .about-section-num {
  background: #FFFFFF;
  color: #0A1929;
}

.page-about .about-feedback-grid {
  display: grid;
  gap: 36px;
  align-items: center;
}

.page-about .about-feedback-text p {
  margin: 0 0 18px;
  line-height: 1.85;
  font-size: 0.9688rem;
}

.page-about .about-feedback-text a:not(.btn) {
  color: #F7B733;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-feedback .btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  border: 1px solid #F7B733;
  color: #F7B733;
  background: transparent;
  padding: 10px 22px;
  font-weight: 700;
  font-size: 0.9375rem;
  text-decoration: none;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-about .about-feedback .btn-ghost:hover,
.page-about .about-feedback .btn-ghost:focus-visible {
  background: #F7B733;
  color: #0A1929;
  border-color: #F7B733;
}

.page-about .about-feedback .btn-arrow {
  transition: transform 0.2s ease;
}

.page-about .about-feedback .btn-ghost:hover .btn-arrow {
  transform: translateX(4px);
}

.page-about .about-feedback-figure {
  margin: 0;
}

.page-about .about-feedback-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
}

.page-about .about-feedback-figure figcaption {
  padding: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.5);
}

.page-about .about-data {
  background: #F9FAFB;
  border-bottom: 1px solid #E5E7EB;
}

.page-about .about-data-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.page-about .about-stat {
  position: relative;
  background: #FFFFFF;
  border: 1px solid #E5E7EB;
  padding: 24px 20px 20px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.page-about .about-stat::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--data-border-h);
  background: linear-gradient(90deg, #F7B733 0 32%, #FF6B35 32% 100%);
}

.page-about .about-stat:hover {
  transform: translateY(-4px);
  border-color: #F7B733;
  box-shadow: 0 8px 24px rgba(10, 25, 41, 0.08);
}

.page-about .about-stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(2.125rem, 6vw, 3.75rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  color: #0A1929;
}

.page-about .about-stat-label {
  display: block;
  margin-top: 10px;
  font-size: 0.9375rem;
  font-weight: 800;
  color: #111827;
}

.page-about .about-stat-note {
  display: block;
  margin-top: 6px;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: #6B7280;
}

.page-about .about-data-foot {
  margin-top: 32px;
  border-left: 3px solid #F7B733;
  padding-left: 16px;
  color: #6B7280;
  line-height: 1.85;
  font-size: 0.9375rem;
}

.page-about .about-data-foot a {
  color: #0A1929;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}

.page-about .about-data-foot a:hover {
  color: #FF6B35;
}

@media (min-width: 640px) {
  .page-about .about-hero {
    padding: 32px 24px 0;
  }

  .page-about .about-data-grid {
    gap: 20px;
  }
}

@media (min-width: 900px) {
  .page-about .about-content > section {
    padding: 72px 32px;
  }

  .page-about .about-mission-statement {
    grid-template-columns: 1.35fr 1fr;
    gap: 56px;
    align-items: start;
  }

  .page-about .about-mission-quote {
    font-size: clamp(1.5rem, 3vw, 2rem);
  }

  .page-about .about-journey-grid {
    grid-template-columns: 1fr 1.5fr;
    gap: 56px;
    align-items: start;
  }

  .page-about .about-journey-aside {
    position: sticky;
    top: calc(72px + 32px);
  }

  .page-about .about-feedback-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 56px;
  }

  .page-about .about-data-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero {
    padding-top: 64px;
  }

  .page-about .about-hero h1 {
    font-size: clamp(2.5rem, 5vw, 3.75rem);
  }

  .page-about .about-hero-lede {
    font-size: 1.1875rem;
  }

  .page-about .about-hero-figure {
    margin-top: 8px;
  }

  .page-about .about-tl-item {
    padding-left: 64px;
    margin-bottom: 32px;
  }

  .page-about .about-tl-card {
    padding: 24px;
  }
}