.page-about {
  --about-panel: var(--panel);
  --about-ink: #C7D2E4;
  --about-green-line: rgba(0, 232, 143, 0.35);
  --about-purple-glow: rgba(123, 47, 247, 0.1);
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  overflow-x: hidden;
}
.page-about * {
  box-sizing: border-box;
}
.page-about img {
  max-width: 100%;
  height: auto;
  display: block;
}
.page-about [data-reveal] {
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.page-about .about-breadcrumb {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 18px 20px 0;
}
.page-about .about-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--muted);
}
.page-about .about-breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s ease;
}
.page-about .about-breadcrumb a:hover {
  color: var(--primary);
}
.page-about .about-breadcrumb span {
  color: rgba(136, 146, 176, 0.5);
}
.page-about .about-breadcrumb [aria-current="page"] {
  color: var(--text);
  font-weight: 700;
}
.page-about .about-hero {
  position: relative;
  padding: 48px 20px 56px;
  overflow: hidden;
}
.page-about .about-hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(0, 194, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 194, 255, 0.05) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 90%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 90%);
}
.page-about .about-hero-bg::after {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  right: -120px;
  top: -120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(123, 47, 247, 0.35), transparent 70%);
}
.page-about .about-hero-inner {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  gap: 36px;
  align-items: center;
}
.page-about .about-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-family: var(--font-title);
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--primary);
}
.page-about .about-kicker::before {
  content: "";
  width: 30px;
  height: 3px;
  background: var(--primary);
  display: inline-block;
}
.page-about .about-hero h1 {
  margin: 0 0 14px;
  font-family: var(--font-title);
  font-size: clamp(44px, 11vw, 84px);
  line-height: 1.02;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}
.page-about .about-hero-sub {
  display: inline-block;
  margin: 0 0 18px;
  padding: 6px 12px 6px 10px;
  background: var(--secondary);
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.06em;
  transform: rotate(-1deg);
}
.page-about .about-hero-lead {
  max-width: 62ch;
  margin: 0 0 28px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--about-ink);
}
.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-about .about-btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}
.page-about .about-btn-solid {
  background: var(--primary);
  color: #04121A;
}
.page-about .about-btn-solid:hover {
  background: #21F0A1;
  box-shadow: 0 0 26px rgba(0, 232, 143, 0.35);
}
.page-about .about-btn-ghost {
  border-color: rgba(247, 249, 252, 0.32);
  color: var(--text);
}
.page-about .about-btn-ghost:hover {
  border-color: var(--data);
  color: var(--data);
}
.page-about .about-hero-media {
  position: relative;
}
.page-about .about-hero-media img {
  width: 100%;
  outline: 1px solid rgba(0, 232, 143, 0.25);
  background: var(--panel);
  transform: rotate(-1.1deg);
}
.page-about .about-hero-media::before {
  content: "";
  position: absolute;
  inset: 14px -10px -10px 14px;
  border: 1px solid rgba(0, 232, 143, 0.4);
  z-index: -1;
}
.page-about .about-hero-tag {
  position: absolute;
  top: 14px;
  right: -4px;
  padding: 10px 8px;
  background: var(--secondary);
  color: #FFFFFF;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
  writing-mode: vertical-rl;
}
.page-about .about-hero-stats {
  position: relative;
  max-width: var(--max-width);
  margin: 44px auto 0;
  padding: 0 20px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.page-about .about-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px;
  background: var(--panel);
  border: 1px solid rgba(0, 194, 255, 0.16);
  border-radius: var(--radius);
}
.page-about .about-stat dd {
  margin: 0;
  font-family: var(--font-title);
  font-size: clamp(24px, 6vw, 40px);
  line-height: 1;
  color: var(--primary);
}
.page-about .about-stat dt {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.page-about .about-sec {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 76px 20px;
}
.page-about .about-sec + .about-sec {
  border-top: 1px solid rgba(0, 194, 255, 0.1);
}
.page-about .about-sec-num {
  position: absolute;
  top: 28px;
  right: 4px;
  z-index: 0;
  font-family: var(--font-title);
  font-size: clamp(90px, 24vw, 220px);
  line-height: 0.8;
  color: rgba(247, 249, 252, 0.05);
  pointer-events: none;
  user-select: none;
}
.page-about .about-sec-head {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 34px;
}
.page-about .about-sec-head h2 {
  margin: 0;
  font-family: var(--font-title);
  font-size: clamp(30px, 6vw, 52px);
  line-height: 1.04;
  letter-spacing: 0.02em;
}
.page-about .about-sec-head h2::after {
  content: "";
  display: block;
  width: 58px;
  height: 4px;
  margin-top: 12px;
  background: linear-gradient(90deg, var(--primary), var(--data));
}
.page-about .about-side-note {
  writing-mode: vertical-rl;
  align-self: center;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--muted);
  white-space: nowrap;
}
.page-about .about-who-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 24px;
}
.page-about .about-who-lead {
  margin: 0;
  padding-left: 18px;
  border-left: 3px solid var(--primary);
  font-size: 17px;
  line-height: 1.75;
  font-weight: 700;
}
.page-about .about-who-body {
  display: grid;
  gap: 14px;
}
.page-about .about-who-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--about-ink);
}
.page-about .about-cert {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: rgba(0, 232, 143, 0.08);
  border: 1px solid rgba(0, 232, 143, 0.22);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--about-ink);
}
.page-about .about-cert-mark {
  flex: 0 0 auto;
  padding: 4px 10px;
  background: var(--primary);
  color: #04121A;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.06em;
}
.page-about .about-data-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 30px;
}
.page-about .about-flow {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .about-flow li {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 16px;
  align-items: start;
  padding: 18px 20px;
  background: var(--panel);
  border: 1px solid rgba(0, 194, 255, 0.12);
  border-radius: var(--radius);
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.page-about .about-flow li:hover {
  border-color: var(--primary);
  transform: translateX(6px);
}
.page-about .about-flow-step {
  font-family: var(--font-title);
  font-size: 30px;
  line-height: 1;
  color: var(--primary);
}
.page-about .about-flow h3 {
  margin: 0 0 6px;
  font-size: 17px;
  line-height: 1.3;
}
.page-about .about-flow p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}
.page-about .about-data-notes {
  display: grid;
  gap: 12px;
  align-content: start;
}
.page-about .about-data-notes p {
  margin: 0;
  padding: 16px 18px;
  background: rgba(123, 47, 247, 0.1);
  border: 1px solid rgba(123, 47, 247, 0.28);
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.75;
  color: #D8C9F7;
}
.page-about .about-data-notes strong {
  color: var(--text);
  font-weight: 800;
}
.page-about .about-milestones-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 40px;
}
.page-about .about-timeline {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary), var(--data), var(--secondary));
}
.page-about .about-timeline-item {
  position: relative;
  padding: 0 0 30px 48px;
  outline: none;
}
.page-about .about-timeline-item:last-child {
  padding-bottom: 0;
}
.page-about .about-timeline-item::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 8px;
  width: 16px;
  height: 16px;
  background: var(--bg);
  border: 3px solid var(--primary);
  transform: rotate(45deg);
}
.page-about .about-timeline-item:last-child::before {
  border-color: var(--secondary);
}
.page-about .about-tl-year {
  display: block;
  font-family: var(--font-title);
  font-size: 54px;
  line-height: 0.95;
  color: rgba(0, 232, 143, 0.9);
  letter-spacing: 0.02em;
}
.page-about .about-tl-card {
  margin-top: 6px;
}
.page-about .about-tl-card h3 {
  margin: 0 0 6px;
  font-size: 18px;
}
.page-about .about-tl-detail {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}
.page-about .about-milestone-media {
  position: relative;
  margin: 0;
  align-self: center;
}
.page-about .about-milestone-media::before {
  content: "";
  position: absolute;
  right: 14px;
  bottom: -14px;
  width: 76%;
  height: 76%;
  background: linear-gradient(135deg, rgba(0, 232, 143, 0.16), rgba(0, 194, 255, 0.06));
  z-index: -1;
}
.page-about .about-milestone-media img {
  outline: 1px solid rgba(0, 194, 255, 0.25);
}
.page-about .about-milestone-media figcaption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.04em;
}
.page-about .about-team-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
}
.page-about .about-team-copy p {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--about-ink);
}
.page-about .about-team-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .about-team-list li {
  padding: 14px 18px;
  background: var(--panel);
  border-left: 3px solid var(--data);
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.7;
  color: #B9C6DC;
}
.page-about .about-team-list strong {
  color: var(--text);
}
.page-about .about-team-media {
  margin: 0;
  align-self: center;
}
.page-about .about-team-media img {
  outline: 1px solid rgba(123, 47, 247, 0.32);
}
.page-about .about-team-media figcaption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.04em;
}
.page-about .about-eco {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 12px;
  margin-top: 44px;
}
.page-about .about-eco-item {
  padding: 18px 20px;
  background: rgba(13, 43, 69, 0.62);
  border: 1px solid rgba(0, 232, 143, 0.16);
  border-radius: var(--radius);
}
.page-about .about-eco-item p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}
.page-about .about-badge {
  display: inline-block;
  padding: 5px 10px;
  background: var(--primary);
  color: #04121A;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
}
.page-about .about-eco-item:nth-child(2) .about-badge {
  background: var(--accent);
  color: #1A0B00;
}
.page-about .about-eco-item:nth-child(3) .about-badge {
  background: var(--secondary);
  color: #FFFFFF;
}
.page-about .about-links {
  display: grid;
  gap: 12px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px 20px 84px;
}
.page-about .about-link-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px 24px;
  background: var(--panel);
  border: 1px solid rgba(0, 194, 255, 0.14);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}
.page-about .about-link-card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0, 232, 143, 0.12);
}
.page-about .about-link-tag {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--primary);
}
.page-about .about-link-card strong {
  font-family: var(--font-title);
  font-size: 19px;
  letter-spacing: 0.01em;
  color: var(--text);
}
.page-about .about-link-card > span:last-child {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}
@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 72px 24px 64px;
  }
  .page-about .about-hero-tag {
    right: -8px;
  }
  .page-about .about-stat {
    padding: 18px 20px;
  }
  .page-about .about-who-grid {
    grid-template-columns: 1fr 1.1fr;
    column-gap: 48px;
    align-items: start;
  }
}
@media (min-width: 1024px) {
  .page-about .about-hero-inner {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 56px;
  }
  .page-about .about-hero-lead {
    font-size: 16px;
  }
  .page-about .about-sec {
    padding: 96px 24px;
  }
  .page-about .about-data-grid {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
  }
  .page-about .about-milestones-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 56px;
  }
  .page-about .about-team-grid {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }
  .page-about .about-eco {
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
  }
  .page-about .about-links {
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
  }
}
@media (hover: hover) {
  .page-about .about-tl-detail {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transform: translateY(-4px);
    transition: max-height 0.3s ease, opacity 0.2s ease, transform 0.2s ease;
  }
  .page-about .about-timeline-item:hover .about-tl-detail,
  .page-about .about-timeline-item:focus .about-tl-detail,
  .page-about .about-timeline-item:focus-within .about-tl-detail {
    max-height: 140px;
    opacity: 1;
    transform: translateY(0);
  }
}
@media (prefers-reduced-motion: reduce) {
  .page-about [data-reveal] {
    transition: none;
  }
  .page-about .about-tl-detail {
    transition: none;
  }
}