.page-about {
  --font-archive: "Playfair Display", "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --bg-texture-line: rgba(255, 255, 255, 0.02);
  position: relative;
  z-index: 1;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  overflow: clip;
}

.page-about > * {
  position: relative;
  z-index: 1;
}

.page-about::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(115deg, transparent 0 42%, rgba(57, 255, 20, 0.022) 42% 42.2%, transparent 42.2% 100%),
    linear-gradient(65deg, transparent 0 62%, rgba(0, 229, 255, 0.018) 62% 62.2%, transparent 62.2% 100%);
}

.page-about-hero {
  position: relative;
  padding: 44px 0 64px;
  overflow: hidden;
}

.page-about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 520px 320px at 88% 12%, rgba(57, 255, 20, 0.12), transparent 68%),
    radial-gradient(ellipse 420px 320px at 6% 92%, rgba(0, 229, 255, 0.10), transparent 70%),
    repeating-linear-gradient(115deg, transparent 0 22px, var(--bg-texture-line) 22px 23px);
  pointer-events: none;
}

.page-about-hero .breadcrumbs {
  margin-bottom: 44px;
  position: relative;
}

.page-about-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
  align-items: center;
}

.page-about-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--neon);
}

.page-about-hero__kicker::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--neon);
  box-shadow: var(--shadow-glow-green);
}

.page-about-hero h1 {
  margin: 0 0 20px;
  font-family: var(--font-archive);
  font-size: clamp(1.9rem, 6vw, 4rem);
  font-weight: 900;
  font-style: italic;
  line-height: 1.08;
  color: var(--text-primary);
  text-wrap: balance;
}

.page-about-hero h1 span {
  display: block;
  margin-top: 12px;
  font-family: var(--font-body);
  font-size: clamp(1rem, 2.6vw, 1.45rem);
  font-weight: 700;
  font-style: normal;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-about-hero__lead {
  max-width: 38em;
  margin: 0;
  color: var(--text-dim);
  font-size: 1.0625rem;
  line-height: 1.75;
}

.page-about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about-hero__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 240px;
}

.page-about-hero__visual::before,
.page-about-hero__visual::after {
  content: "";
  position: absolute;
  border-radius: 16px;
  pointer-events: none;
}

.page-about-hero__visual::before {
  width: 240px;
  height: 240px;
  border: 1px dashed rgba(57, 255, 20, 0.28);
  transform: rotate(45deg);
}

.page-about-hero__visual::after {
  width: 336px;
  height: 336px;
  border: 1px solid rgba(0, 229, 255, 0.14);
  transform: rotate(45deg);
}

.page-about-hero__svg {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 380px;
  height: auto;
}

.page-about-hero__stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 44px 0 0;
}

.page-about-hero__stats .stat-chip {
  margin: 0;
  padding: 16px 12px;
  background: rgba(18, 26, 36, 0.72);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  backdrop-filter: blur(4px);
}

.page-about-layout {
  display: grid;
  gap: 36px;
  padding-top: 8px;
}

.page-about-rail {
  position: relative;
  padding: 12px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.page-about-rail__inner {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 10px;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-about-rail__title {
  flex: 0 0 auto;
  margin: 0 6px 0 0;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.page-about-rail__nav {
  display: flex;
  flex-wrap: nowrap;
  gap: 6px;
}

.page-about-rail__nav a {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.875rem;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.22s ease, border-color 0.22s ease, background 0.22s ease;
}

.page-about-rail__nav a:hover,
.page-about-rail__nav a:focus-visible {
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.page-about-rail__nav a.is-active {
  color: var(--bg-primary);
  background: var(--neon);
  border-color: var(--neon);
  box-shadow: var(--shadow-glow-green);
}

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

.page-about-story .section-title,
.page-about-milestones .section-title,
.page-about-data .section-title,
.page-about-tech .section-title,
.page-about-team .section-title {
  margin-bottom: 10px;
}

.page-about-h2 {
  margin: 4px 0 12px;
  font-family: var(--font-archive);
  font-size: clamp(1.6rem, 4vw, 2.3rem);
  font-weight: 900;
  font-style: italic;
  line-height: 1.16;
  letter-spacing: 0.01em;
}

.page-about-sub {
  max-width: 48em;
  margin: 0 0 30px;
  color: var(--text-dim);
  line-height: 1.7;
}

.page-about-story__inner {
  display: grid;
  gap: 30px;
  align-items: center;
}

.page-about-story__content p {
  margin: 0 0 16px;
  color: var(--text-dim);
  line-height: 1.8;
}

.page-about-story__content strong {
  color: var(--neon);
  font-weight: 700;
}

.page-about-story__lead {
  margin-bottom: 18px !important;
  color: var(--cyan) !important;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.page-about-story blockquote {
  margin: 24px 0;
  padding: 18px 22px;
  border-left: 3px solid var(--neon);
  background: linear-gradient(90deg, rgba(57, 255, 20, 0.08), rgba(57, 255, 20, 0.01) 75%);
  font-family: var(--font-archive);
  font-size: 1.3rem;
  font-style: italic;
  line-height: 1.5;
  color: var(--text-primary);
}

.page-about-story__figure {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-surface);
  box-shadow: var(--shadow-card);
}

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

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

.page-about-timeline__item {
  position: relative;
  padding: 0 0 30px 24px;
}

.page-about-timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 2px solid var(--neon);
  box-shadow: 0 0 0 4px rgba(57, 255, 20, 0.12);
  transition: transform 0.24s ease, box-shadow 0.24s ease;
}

.page-about-timeline__item:hover::before,
.page-about-timeline__item:focus-within::before {
  transform: scale(1.3);
  box-shadow: 0 0 0 6px rgba(57, 255, 20, 0.2), 0 0 18px rgba(57, 255, 20, 0.55);
}

.page-about-timeline__item::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 28px;
  bottom: 0;
  width: 1px;
  background: var(--border);
}

.page-about-timeline__item:last-child::after {
  display: none;
}

.page-about-timeline__card {
  margin-bottom: 10px;
}

.page-about-timeline__card h3 {
  margin: 0 0 6px;
  font-family: var(--font-archive);
  font-size: 1.2rem;
  font-weight: 800;
  font-style: italic;
}

.page-about-timeline__card p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.page-about-timeline__details {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(18, 26, 36, 0.6);
}

.page-about-timeline__details .accordion__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 12px 16px;
  border: 0;
  background: transparent;
  color: var(--text-dim);
  font-size: 0.875rem;
  cursor: pointer;
}

.page-about-timeline__details .accordion__trigger:hover,
.page-about-timeline__details .accordion__trigger:focus-visible {
  color: var(--neon);
}

.page-about-timeline__details .accordion__panel-inner {
  padding: 14px 16px 16px;
  border-top: 1px solid var(--border);
}

.page-about-timeline__details .list-check {
  margin: 0;
}

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

.page-about-data__chart-wrap {
  padding: 22px 16px 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.page-about-data__chart {
  display: block;
  width: 100%;
  height: auto;
}

.page-about-data__chart-note {
  margin: 14px 0 0;
  color: var(--text-faint);
  font-size: 0.8125rem;
  text-align: right;
}

.page-about-data__labels text {
  font-family: var(--font-body);
  font-weight: 500;
}

.page-about-data__value {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 700;
}

.page-about-data__value--dark {
  fill: var(--bg-primary);
}

.page-about-data__value--light {
  fill: var(--text-primary);
}

.page-about-data__bar {
  fill: var(--neon);
  transition: filter 0.2s ease;
}

.page-about-data__bar:hover,
.page-about-data__bar:focus-visible {
  filter: drop-shadow(0 0 8px rgba(57, 255, 20, 0.7));
}

.page-about-data__bar--1 {
  opacity: 1;
}

.page-about-data__bar--2 {
  opacity: 0.82;
}

.page-about-data__bar--3 {
  opacity: 0.64;
}

.page-about-data__bar--4 {
  opacity: 0.46;
}

.page-about-data__bar--5 {
  opacity: 0.32;
}

.page-about-data__list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 0 0 28px;
}

.page-about-data__list div {
  padding: 14px 16px;
  background: rgba(18, 26, 36, 0.72);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.page-about-data__list dt {
  margin: 0 0 6px;
  color: var(--text-dim);
  font-size: 0.8125rem;
}

.page-about-data__list dd {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--neon);
}

.page-about-data__figure {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-surface);
  box-shadow: var(--shadow-card);
}

.page-about-tech__steps {
  display: grid;
  gap: 16px;
  margin-bottom: 22px;
}

.page-about-tech__step {
  position: relative;
  overflow: hidden;
  padding: 24px 22px 22px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.page-about-tech__step::after {
  content: "";
  position: absolute;
  top: -28px;
  right: -28px;
  width: 72px;
  height: 72px;
  border-radius: 8px;
  background: var(--cyan);
  opacity: 0.07;
  transform: rotate(45deg);
}

.page-about-tech__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 900;
  font-style: italic;
  line-height: 1;
  color: var(--neon);
  opacity: 0.5;
}

.page-about-tech__step h3 {
  margin: 0 0 10px;
  font-family: var(--font-archive);
  font-size: 1.35rem;
  font-weight: 800;
  font-style: italic;
}

.page-about-tech__step p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.page-about-tech__note {
  max-width: 56em;
}

.page-about-team__inner {
  display: grid;
  gap: 30px;
  align-items: center;
}

.page-about-team__list {
  margin: 0 0 24px;
}

.page-about-team__principles {
  display: grid;
  gap: 12px;
}

.page-about-team__principle {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  background: rgba(18, 26, 36, 0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.page-about-team__principle span {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--neon);
  border-radius: 6px;
  background: rgba(57, 255, 20, 0.08);
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 900;
  font-style: italic;
  color: var(--neon);
  transform: rotate(-6deg);
}

.page-about-team__principle p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.9375rem;
}

.page-about-team__figure {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-surface);
  box-shadow: var(--shadow-card);
}

.page-about-next {
  padding-top: 16px;
}

.page-about-next__card {
  position: relative;
  overflow: hidden;
  padding: 46px 24px 40px;
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  text-align: center;
}

.page-about-next__card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 480px 200px at 50% -20%, rgba(57, 255, 20, 0.12), transparent 70%),
    repeating-linear-gradient(120deg, transparent 0 18px, rgba(255, 255, 255, 0.02) 18px 19px);
  pointer-events: none;
}

.page-about-next__kicker {
  position: relative;
  margin-bottom: 8px;
  font-size: 0.75rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.page-about-next__card h2 {
  position: relative;
  font-family: var(--font-archive);
  font-style: italic;
}

.page-about-next__desc {
  position: relative;
  margin: 0 0 24px;
  color: var(--text-dim);
}

.page-about-next__links {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.page-about-next__note {
  position: relative;
  margin: 22px auto 0;
  color: var(--text-faint);
  font-size: 0.875rem;
}

@media (max-width: 520px) {
  .page-about-data__chart-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 8px;
  }

  .page-about-data__chart {
    min-width: 480px;
  }
}

@media (min-width: 700px) {
  .page-about-hero__inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  }

  .page-about-hero__stats {
    grid-template-columns: repeat(5, 1fr);
  }

  .page-about-story__inner,
  .page-about-team__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-about-tech__steps {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about-data__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-about-layout {
    grid-template-columns: 188px minmax(0, 1fr);
    gap: 60px;
    align-items: start;
    padding-top: 16px;
  }

  .page-about-rail {
    position: sticky;
    top: 24px;
    padding: 0;
    border: 0;
  }

  .page-about-rail__inner {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    overflow: visible;
  }

  .page-about-rail__title {
    margin: 0 0 14px;
    padding-left: 17px;
  }

  .page-about-rail__nav {
    flex-direction: column;
    gap: 0;
    border-left: 1px solid var(--border);
  }

  .page-about-rail__nav a {
    margin-left: -1px;
    padding: 10px 16px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
  }

  .page-about-rail__nav a:hover,
  .page-about-rail__nav a:focus-visible {
    border-color: transparent;
    color: var(--text-primary);
  }

  .page-about-rail__nav a.is-active {
    background: transparent;
    border-left-color: var(--neon);
    color: var(--neon);
    box-shadow: none;
  }

  .page-about-rail__note {
    display: block;
    margin-top: 18px;
    padding-left: 18px;
    font-size: 0.75rem;
    line-height: 1.7;
    color: var(--text-faint);
  }
}