.page-about {
  --about-border: rgba(168, 85, 247, 0.32);
  --about-border-soft: rgba(168, 85, 247, 0.18);
  --about-glow: rgba(168, 85, 247, 0.38);
  --about-cyan: rgba(0, 212, 255, 0.42);
  --about-gap: clamp(24px, 4vw, 56px);
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-about__breadcrumb-wrap {
  padding-top: var(--space-5);
}

.page-about figure {
  margin: 0;
}

.page-about img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.32);
}

.page-about figcaption {
  margin-top: var(--space-2);
  color: var(--color-text-dim);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-about a {
  color: var(--color-secondary);
  text-underline-offset: 4px;
  transition: color var(--transition);
}

.page-about__hero {
  position: relative;
  padding: var(--space-6) 0 var(--space-7);
  overflow: hidden;
}

.page-about__hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 72%;
  height: 100%;
  background: linear-gradient(135deg, rgba(168, 85, 247, 0.18), rgba(0, 212, 255, 0.06));
  clip-path: polygon(16% 0, 100% 0, 100% 100%, 0 100%);
  z-index: 0;
}

.page-about__hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-5);
}

.page-about__hero-copy {
  max-width: 720px;
}

.page-about__eyebrow {
  display: inline-block;
  padding: 4px 14px;
  border: 1px solid var(--about-border);
  border-radius: var(--radius-pill);
  background: rgba(168, 85, 247, 0.1);
  color: var(--color-secondary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  margin-bottom: var(--space-4);
}

.page-about__hero h1 {
  margin: 0 0 var(--space-4);
  font-family: var(--font-heading);
  font-size: clamp(1.9rem, 3.6vw, 3rem);
  line-height: 1.14;
  letter-spacing: -0.03em;
  color: var(--color-text);
}

.page-about__lead {
  margin: 0 0 var(--space-5);
  color: var(--color-text-dim);
  font-size: clamp(1rem, 1.4vw, 1.125rem);
  max-width: 64ch;
}

.page-about__hero-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-about__hero-facts li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--space-3);
  border-left: 3px solid var(--color-primary);
  background: rgba(30, 41, 59, 0.6);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.page-about__hero-facts strong {
  color: var(--color-text-dim);
  font-size: 13px;
  font-weight: 500;
}

.page-about__hero-facts span {
  color: var(--color-text);
  font-size: clamp(1.125rem, 1.6vw, 1.4rem);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-about__hero-index {
  background: var(--color-bg-elevated);
  border: 1px solid var(--about-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02), 0 24px 48px rgba(0, 0, 0, 0.36);
}

.page-about__index-label {
  display: block;
  color: var(--color-text-dim);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}

.page-about__index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-about__index-list a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 12px 14px;
  border-radius: var(--radius-md);
  color: var(--color-text);
  text-decoration: none;
  background: rgba(148, 163, 184, 0.06);
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.page-about__index-list a span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-pill);
  background: rgba(168, 85, 247, 0.16);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 800;
}

.page-about__index-list a:hover {
  background: rgba(168, 85, 247, 0.12);
  color: var(--color-secondary);
  transform: translateX(4px);
}

.page-about__mission,
.page-about__timeline-section,
.page-about__coverage,
.page-about__tech,
.page-about__trust {
  padding: var(--space-6) 0;
}

.page-about__section-head {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.page-about__section-idx {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  color: #0d0f1a;
  font-size: 14px;
  font-weight: 800;
  box-shadow: 0 0 28px rgba(168, 85, 247, 0.5);
}

.page-about__section-idx--warm {
  background: var(--color-cta);
  box-shadow: 0 0 28px rgba(255, 159, 28, 0.4);
}

.page-about__section-heading {
  min-width: 0;
}

.page-about__kicker {
  display: block;
  color: var(--color-secondary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.page-about__section-title {
  margin: 4px 0 0;
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 2.6vw, 2.15rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.page-about__mission-grid {
  display: grid;
  gap: var(--about-gap);
}

.page-about__mission-copy {
  color: var(--color-text);
}

.page-about__mission-copy p {
  margin: 0 0 var(--space-4);
  color: var(--color-text-dim);
  font-size: 15px;
}

.page-about__mission-copy p:first-of-type {
  color: var(--color-text);
  font-size: 16px;
}

.page-about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2);
  margin-top: var(--space-5);
}

.page-about__stat {
  padding: var(--space-3);
  background: rgba(30, 41, 59, 0.72);
  border: 1px solid var(--about-border-soft);
  border-radius: var(--radius-md);
}

.page-about__stat-num,
.page-about__trust-num {
  display: block;
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-size: clamp(1.35rem, 2vw, 1.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.page-about__stat-label,
.page-about__trust-label {
  display: block;
  margin-top: 2px;
  color: var(--color-text-dim);
  font-size: 13px;
}

.page-about__mission-figure,
.page-about__coverage-figure,
.page-about__tech-figure {
  position: relative;
}

.page-about__mission-figure img,
.page-about__coverage-figure img,
.page-about__tech-figure img {
  width: 100%;
  object-fit: cover;
}

.page-about__mission-figure::after,
.page-about__coverage-figure::after,
.page-about__tech-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(125deg, transparent 64%, rgba(255, 42, 117, 0.2));
  border-radius: var(--radius-lg);
  pointer-events: none;
}

.page-about__timeline-layout {
  display: grid;
  gap: var(--about-gap);
}

.page-about__timeline-track {
  position: relative;
  padding-left: 32px;
}

.page-about__timeline-line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 2px;
  width: 4px;
  height: 100%;
}

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

.page-about__timeline-item {
  position: relative;
  margin-bottom: var(--space-5);
}

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

.page-about__timeline-dot {
  position: absolute;
  left: -32px;
  top: 4px;
  width: 13px;
  height: 13px;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(168, 85, 247, 0.16), 0 0 18px rgba(168, 85, 247, 0.75);
}

.page-about__timeline-meta {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}

.page-about__timeline-year {
  color: var(--color-secondary);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.page-about__timeline-code {
  color: var(--color-text-dim);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.page-about__timeline-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--about-border-soft);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}

.page-about__timeline-card h3 {
  margin: 0 0 var(--space-1);
  font-size: 1.075rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.page-about__timeline-card p {
  margin: 0;
  color: var(--color-text-dim);
  font-size: 14px;
}

.page-about__timeline-item:hover .page-about__timeline-card {
  background: rgba(168, 85, 247, 0.1);
  border-color: rgba(0, 212, 255, 0.5);
  transform: translateX(4px);
}

.page-about__timeline-note {
  align-self: start;
  position: relative;
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid var(--about-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02), 0 16px 32px rgba(0, 0, 0, 0.28);
}

.page-about__note-symbol {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-pill);
  background: rgba(255, 42, 117, 0.16);
  color: var(--color-accent);
  font-size: 24px;
  font-weight: 800;
  margin-bottom: var(--space-3);
}

.page-about__timeline-note p {
  margin: 0 0 var(--space-4);
  color: var(--color-text-dim);
  font-size: 15px;
}

.page-about__note-link {
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-about__coverage-grid {
  display: grid;
  gap: var(--space-4);
}

.page-about__coverage-card {
  position: relative;
  overflow: hidden;
  background: var(--color-bg-elevated);
  border: 1px solid var(--about-border-soft);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.page-about__coverage-card::before {
  content: "";
  position: absolute;
  top: -44px;
  right: -44px;
  width: 128px;
  height: 128px;
  border-radius: var(--radius-pill);
  background: rgba(255, 42, 117, 0.12);
  filter: blur(2px);
  pointer-events: none;
}

.page-about__coverage-card--kr::before {
  background: rgba(0, 212, 255, 0.12);
}

.page-about__coverage-card:hover {
  border-color: rgba(0, 212, 255, 0.55);
  box-shadow: 0 0 0 1px rgba(0, 212, 255, 0.2), 0 24px 48px rgba(0, 0, 0, 0.3);
}

.page-about__coverage-card-head {
  position: relative;
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.page-about__badge {
  justify-self: start;
  display: inline-flex;
  padding: 3px 12px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.page-about__coverage-card--kr .page-about__badge {
  background: var(--color-secondary);
  color: #0d0f1a;
}

.page-about__coverage-card h3 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.page-about__coverage-card > p {
  margin: 0;
  color: var(--color-text-dim);
  font-size: 14px;
}

.page-about__chips {
  list-style: none;
  margin: var(--space-4) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about__chips li {
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  background: rgba(168, 85, 247, 0.14);
  border: 1px solid rgba(168, 85, 247, 0.3);
  color: var(--color-text);
  font-size: 13px;
  font-weight: 500;
}

.page-about__coverage-card--kr .page-about__chips li {
  background: rgba(0, 212, 255, 0.1);
  border-color: rgba(0, 212, 255, 0.28);
}

.page-about__coverage-bottom {
  display: grid;
  gap: var(--about-gap);
  margin-top: var(--space-6);
}

.page-about__coverage-figure {
  order: 1;
}

.page-about__coverage-radar {
  order: 2;
  background: rgba(30, 41, 59, 0.72);
  border: 1px solid var(--about-border-soft);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  text-align: center;
}

.page-about__radar-label {
  color: var(--color-text-dim);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.page-about__coverage-radar svg {
  width: min(280px, 100%);
  height: auto;
}

.page-about__coverage-radar p {
  margin: 0;
  color: var(--color-text-dim);
  font-size: 13px;
}

.page-about__radar-text text {
  fill: var(--color-text-dim);
  font-size: 11px;
  font-family: var(--font-body);
}

.page-about__tech-layout {
  display: grid;
  gap: var(--about-gap);
}

.page-about__tech-copy {
  align-self: center;
}

.page-about__tech-copy > p {
  margin: 0 0 var(--space-4);
  color: var(--color-text-dim);
  font-size: 15px;
}

.page-about__tech-list {
  list-style: none;
  margin: 0 0 var(--space-5);
  padding: 0;
}

.page-about__tech-list li {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid rgba(148, 163, 184, 0.16);
  color: var(--color-text);
  font-size: 15px;
  font-weight: 500;
}

.page-about__tech-list span {
  color: var(--color-text-dim);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.page-about__trust {
  background:
    radial-gradient(circle at 78% 22%, rgba(168, 85, 247, 0.18), transparent 42%),
    linear-gradient(135deg, rgba(168, 85, 247, 0.1), rgba(0, 212, 255, 0.05)),
    var(--color-bg-elevated);
  border-top: 1px solid var(--about-border);
}

.page-about__trust-inner {
  padding: var(--space-4) 0;
}

.page-about__trust-desc {
  max-width: 60ch;
  margin: 0 0 var(--space-5);
  color: var(--color-text-dim);
  font-size: 15px;
}

.page-about__trust-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.page-about__trust-item {
  background: rgba(13, 15, 26, 0.6);
  border: 1px solid var(--about-border-soft);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  transition: border-color var(--transition), transform var(--transition);
}

.page-about__trust-item:hover {
  border-color: var(--color-cta);
  transform: translateY(-3px);
}

.page-about__trust-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

@media (min-width: 640px) {
  .page-about__hero-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about__trust-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 992px) {
  .page-about__hero-inner {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: start;
  }

  .page-about__hero-copy {
    padding-right: var(--space-7);
  }

  .page-about__mission-grid {
    grid-template-columns: 5fr 7fr;
    align-items: center;
  }

  .page-about__timeline-layout {
    grid-template-columns: 7fr 4fr;
    align-items: start;
  }

  .page-about__coverage-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-about__coverage-bottom {
    grid-template-columns: 5fr 7fr;
    align-items: center;
  }

  .page-about__coverage-figure {
    order: 2;
  }

  .page-about__coverage-radar {
    order: 1;
    min-height: 320px;
    justify-content: center;
  }

  .page-about__tech-layout {
    grid-template-columns: 7fr 5fr;
    align-items: center;
  }

  .page-about__tech-figure img {
    height: 100%;
    object-fit: cover;
  }
}

@media (min-width: 1200px) {
  .page-about__mission,
  .page-about__timeline-section,
  .page-about__coverage,
  .page-about__tech {
    padding: var(--space-7) 0;
  }

  .page-about__hero {
    padding: var(--space-7) 0 var(--space-8);
  }
}