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

.page-about .about-hero {
  position: relative;
  padding: 2.5rem 0 1.5rem;
  background:
    radial-gradient(circle at 85% 30%, rgba(123, 47, 255, 0.28), transparent 42%),
    linear-gradient(180deg, var(--bg-2) 0%, var(--bg) 100%);
  border-bottom: 1px solid rgba(245, 240, 230, 0.06);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 38%, rgba(0, 255, 163, 0.06) 46%, transparent 56%);
  pointer-events: none;
}

.page-about .about-hero__grid {
  position: relative;
  display: grid;
  gap: 1.5rem;
}

.page-about .about-hero__content {
  max-width: 720px;
}

.page-about .about-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-1);
  margin-bottom: 0.75rem;
}

.page-about .about-hero__eyebrow::before {
  content: "";
  width: 2.2rem;
  height: 2px;
  background: var(--accent-1);
  display: inline-block;
}

.page-about .about-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 7vw, 4.2rem);
  line-height: 0.95;
  letter-spacing: 0.02em;
  color: var(--text-strong);
  margin: 0 0 1rem;
}

.page-about .about-hero__lead {
  font-size: clamp(1rem, 2.4vw, 1.2rem);
  line-height: 1.75;
  color: var(--text);
  margin-bottom: 0.6rem;
}

.page-about .about-hero__note {
  font-size: 0.92rem;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 0;
}

.page-about .about-hero__img {
  display: block;
  width: 100%;
  height: clamp(180px, 42vw, 360px);
  object-fit: cover;
  object-position: center;
  border-radius: var(--radius);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(0, 255, 163, 0.12);
}

.page-about .about-layout {
  display: grid;
  gap: 1rem;
  padding-top: 1rem;
  padding-bottom: 3rem;
}

.page-about .about-toc {
  position: relative;
  z-index: 5;
  margin: 0;
  padding: 0.75rem 0;
  background: rgba(10, 25, 47, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(245, 240, 230, 0.06);
}

.page-about .about-toc__label {
  display: none;
}

.page-about .about-toc__nav {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding: 0;
  scrollbar-width: none;
}

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

.page-about .about-toc__nav .toc__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  flex: 0 0 auto;
  padding: 0.5rem 0.85rem;
  border-radius: 999px;
  border: 1px solid rgba(123, 47, 255, 0.35);
  background: rgba(17, 34, 64, 0.55);
  font-size: 0.88rem;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.page-about .about-toc__nav .toc__link:hover,
.page-about .about-toc__nav .toc__link--active {
  color: var(--text-strong);
  border-color: var(--accent-1);
  background: rgba(0, 255, 163, 0.08);
}

.page-about .about-toc__num {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent-2);
}

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

.page-about .about-section {
  padding: 2.5rem 0;
  border-bottom: 1px solid rgba(245, 240, 230, 0.06);
  scroll-margin-top: 2rem;
}

.page-about .about-section:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-about .about-section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.1;
  color: var(--text-strong);
  margin: 0.5rem 0 1rem;
}

.page-about .about-section p {
  line-height: 1.8;
  color: var(--text);
  margin-bottom: 1rem;
}

.page-about .about-section p:last-child {
  margin-bottom: 0;
}

.page-about .about-section__footnote {
  font-size: 0.88rem;
  color: var(--text-dim);
  line-height: 1.7;
  margin-top: 0.75rem;
}

.page-about .about-section__footnote a,
.page-about .about-section p a {
  color: var(--accent-1);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-about .philosophy-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
  counter-reset: phil;
}

.page-about .philosophy-item {
  position: relative;
  counter-increment: phil;
  padding: 0.65rem 0.7rem 0.65rem 2.3rem;
  background: var(--bg-glass);
  border: 1px solid rgba(123, 47, 255, 0.18);
  border-left: 3px solid var(--accent-2);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  line-height: 1.4;
}

.page-about .philosophy-item::before {
  content: counter(phil, decimal-leading-zero);
  position: absolute;
  left: 0.65rem;
  top: 0.7rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--accent-1);
}

.page-about .philosophy-item:nth-child(3n+2) {
  border-left-color: var(--accent-1);
}

.page-about .philosophy-item:nth-child(3n) {
  border-left-color: var(--accent-3);
}

.page-about .about-timeline-wrap {
  display: grid;
  gap: 2rem;
  margin: 1.5rem 0;
}

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

.page-about .timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: 1.75rem 1fr;
  gap: 0.75rem;
  padding-bottom: 2rem;
}

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

.page-about .timeline__item::before {
  content: "";
  position: absolute;
  left: 0.55rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent-2), rgba(123, 47, 255, 0.12));
  z-index: 0;
}

.page-about .timeline__dot {
  position: relative;
  z-index: 1;
  justify-self: center;
  margin-top: 0.85rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent-2);
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 3px rgba(123, 47, 255, 0.25);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.page-about .timeline__item:hover .timeline__dot {
  transform: scale(1.3);
  box-shadow: 0 0 0 5px rgba(0, 255, 163, 0.18);
}

.page-about .timeline__item--current .timeline__dot {
  background: var(--accent-1);
  box-shadow: 0 0 0 3px rgba(0, 255, 163, 0.3);
}

.page-about .timeline__content {
  background: var(--bg-glass);
  border: 1px solid rgba(245, 240, 230, 0.06);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
}

.page-about .timeline__year {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-1);
  margin-bottom: 0.25rem;
}

.page-about .timeline__content h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-strong);
  margin: 0.15rem 0 0.4rem;
}

.page-about .timeline__content p:last-child {
  margin-bottom: 0;
  font-size: 0.92rem;
  color: var(--text-dim);
  line-height: 1.7;
}

.page-about .about-timeline-media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid rgba(0, 255, 163, 0.1);
}

.page-about .tech-grid {
  display: grid;
  gap: 1.5rem;
  margin: 1.5rem 0;
}

.page-about .tech-grid__main {
  min-width: 0;
}

.page-about .tech-list {
  list-style: none;
  padding: 0;
  margin: 1.25rem 0;
  display: grid;
  gap: 0.75rem;
}

.page-about .tech-list__item {
  position: relative;
  padding-left: 1.6rem;
  line-height: 1.7;
  color: var(--text);
}

.page-about .tech-list__item::before {
  content: "";
  position: absolute;
  left: 0.1rem;
  top: 0.55rem;
  width: 0.7rem;
  height: 0.7rem;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.page-about .tech-highlight {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.4rem;
  padding: 2.2rem 1rem;
  background:
    linear-gradient(135deg, rgba(123, 47, 255, 0.15), transparent),
    var(--bg-glass);
  border: 1px solid rgba(0, 255, 163, 0.2);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: center;
}

.page-about .tech-highlight::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 30%, rgba(0, 255, 163, 0.1) 48%, transparent 62%);
  pointer-events: none;
}

.page-about .tech-highlight__num {
  font-family: var(--font-display);
  font-size: 4rem;
  line-height: 1;
  color: var(--accent-1);
}

.page-about .tech-highlight__label {
  font-size: 0.9rem;
  color: var(--text-dim);
  max-width: 11rem;
}

.page-about .honor-grid {
  display: grid;
  gap: 1rem;
  margin: 1.75rem 0 0.5rem;
}

.page-about .honor-card {
  perspective: 900px;
}

.page-about .honor-card__inner {
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.55s ease;
  min-height: 230px;
}

.page-about .honor-card:hover .honor-card__inner {
  transform: rotateY(180deg);
}

.page-about .honor-card__face,
.page-about .honor-card__back {
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--radius);
  padding: 1.5rem;
}

.page-about .honor-card__face {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-height: 230px;
  background:
    linear-gradient(135deg, rgba(255, 215, 0, 0.06), transparent 45%),
    var(--bg-glass);
  border: 1px solid rgba(255, 215, 0, 0.28);
}

.page-about .honor-card__badge {
  align-self: flex-start;
  padding: 0.3rem 0.7rem;
  border: 1px solid rgba(255, 215, 0, 0.55);
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent-3);
  background: rgba(255, 215, 0, 0.08);
}

.page-about .honor-card__face h3 {
  font-size: 1.1rem;
  color: var(--text-strong);
  margin: 0.35rem 0 0;
}

.page-about .honor-card__face p,
.page-about .honor-card__back p {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.7;
  margin: 0;
}

.page-about .honor-card__back {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.4rem;
  background: linear-gradient(150deg, rgba(0, 255, 163, 0.1), transparent 60%);
  border: 1px solid rgba(0, 255, 163, 0.35);
  transform: rotateY(180deg);
}

.page-about .honor-card__back-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-dim);
}

.page-about .honor-card__back strong {
  font-size: 1.15rem;
  color: var(--accent-1);
}

.page-about .team-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin: 1.5rem 0;
}

.page-about .team-stat {
  padding: 1.2rem 1rem;
  text-align: center;
  background: var(--bg-glass);
  border-radius: var(--radius);
  border: 1px solid rgba(123, 47, 255, 0.16);
}

.page-about .team-stat__num {
  display: block;
  font-family: var(--font-display);
  font-size: 2.2rem;
  line-height: 1.1;
  color: var(--accent-1);
}

.page-about .team-stat__label {
  display: block;
  margin-top: 0.3rem;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.page-about .team-media {
  margin: 1.5rem 0;
}

.page-about .team-media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid rgba(123, 47, 255, 0.2);
}

@media (min-width: 700px) {
  .page-about .team-stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about .team-media {
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
  }
}

@media (min-width: 720px) {
  .page-about .philosophy-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 780px) {
  .page-about .honor-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 820px) {
  .page-about .tech-grid {
    grid-template-columns: 1fr 220px;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-about .about-timeline-wrap {
    grid-template-columns: 1fr 280px;
    align-items: start;
  }

  .page-about .about-timeline-media {
    position: sticky;
    top: calc(var(--header-h) + 8rem);
    margin-top: 0.5rem;
  }

  .page-about .about-timeline-media img {
    transform: skewY(-2deg) scale(0.98);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
  }
}

@media (min-width: 960px) {
  .page-about .about-layout {
    grid-template-columns: 230px minmax(0, 1fr);
    gap: clamp(2rem, 5vw, 4.5rem);
    align-items: start;
    padding-top: 3.5rem;
    padding-bottom: 5rem;
  }

  .page-about .about-toc {
    position: sticky;
    top: calc(var(--header-h) + 2rem);
    margin: 0;
    padding: 0;
    background: transparent;
    backdrop-filter: none;
    border-bottom: none;
  }

  .page-about .about-toc__label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 0.75rem;
  }

  .page-about .about-toc__nav {
    flex-direction: column;
    gap: 0.35rem;
    overflow: visible;
    padding: 0;
  }

  .page-about .about-toc__nav .toc__link {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    width: 100%;
    padding: 0.55rem 0.8rem;
    border-radius: var(--radius);
    border: none;
    border-left: 2px solid rgba(123, 47, 255, 0.3);
    background: transparent;
    font-size: 0.9rem;
    color: var(--text-dim);
  }

  .page-about .about-toc__nav .toc__link:hover,
  .page-about .about-toc__nav .toc__link--active {
    color: var(--text-strong);
    border-left-color: var(--accent-1);
    background: linear-gradient(90deg, rgba(0, 255, 163, 0.08), transparent);
  }

  .page-about .about-toc__num {
    color: var(--accent-1);
  }

  .page-about .about-section {
    padding: 4rem 0;
  }
}

@media (min-width: 1080px) {
  .page-about .philosophy-list {
    grid-template-columns: repeat(4, 1fr);
  }
}