.page-about {
  --about-line: rgba(74, 144, 226, 0.16);
  background-color: var(--bg-deep);
  color: var(--text-white);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-about .container {
  max-width: var(--content-width);
  margin-inline: auto;
  padding-inline: 20px;
}

.page-about .breadcrumb {
  position: relative;
  z-index: 2;
  max-width: var(--content-width);
  margin-inline: auto;
  padding: 24px 20px 0;
  color: var(--text-gray);
  font-size: 0.8rem;
}

.page-about .breadcrumb a {
  color: var(--text-gray);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-about .breadcrumb a:hover {
  color: var(--accent-green);
}

.page-about .breadcrumb-sep {
  color: var(--accent-purple);
  margin: 0 8px;
}

.page-about .about-hero {
  position: relative;
  padding: 72px 0 48px;
  border-bottom: 1px solid rgba(74, 144, 226, 0.2);
  background-image:
    linear-gradient(var(--about-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-line) 1px, transparent 1px);
  background-size: 32px 32px;
  background-position: center top;
}

.page-about .about-hero::after {
  content: "TECH BLUEPRINT / DATA GRID";
  position: absolute;
  top: 16px;
  right: 16px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--text-gray);
  opacity: 0.6;
  pointer-events: none;
}

.page-about .about-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

.page-about .hero-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--accent-green);
  margin: 0 0 18px;
}

.page-about .about-hero h1 {
  margin: 0 0 20px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.75rem, 5vw, 2.9rem);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--text-white);
  max-width: 12em;
}

.page-about .about-hero-intro {
  margin: 0 0 12px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--accent-orange);
}

.page-about .about-hero-desc {
  margin: 0 0 32px;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text-gray);
  max-width: 46em;
}

.page-about .about-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  padding: 18px 0;
  border-top: 1px solid rgba(74, 144, 226, 0.2);
  border-bottom: 1px solid rgba(74, 144, 226, 0.2);
}

.page-about .about-hero-stats .stat-block {
  min-width: 96px;
}

.page-about .about-hero-stats .stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.7rem;
  color: var(--accent-green);
  line-height: 1.2;
}

.page-about .about-hero-stats .stat-label {
  font-size: 0.78rem;
  color: var(--text-gray);
}

.page-about .stat-unit {
  font-size: 1rem;
  color: var(--text-gray);
  margin-left: 2px;
}

.page-about .about-index {
  position: relative;
  align-self: start;
  background: rgba(21, 42, 74, 0.72);
  border: 1px solid rgba(138, 43, 226, 0.35);
  border-radius: var(--radius);
  padding: 22px 20px;
  box-shadow: 10px 10px 0 rgba(5, 8, 16, 0.3);
}

.page-about .index-caption {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--accent-purple);
}

.page-about .about-index-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-about .about-index-list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 12px;
  color: var(--text-white);
  font-size: 0.9rem;
  text-decoration: none;
  border-left: 2px solid transparent;
  border-radius: 4px;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.page-about .about-index-list a span {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-green);
}

.page-about .about-index-list a:hover {
  background: rgba(0, 229, 160, 0.08);
  border-left-color: var(--accent-green);
}

.page-about .index-note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--text-gray);
}

.page-about .about-section {
  padding: 64px 0;
  scroll-margin-top: 110px;
  border-bottom: 1px solid rgba(74, 144, 226, 0.1);
  transition: box-shadow 0.2s ease;
}

.page-about .about-section:target {
  box-shadow: inset 3px 0 0 var(--accent-green);
}

.page-about .about-section .section-head {
  margin-bottom: 36px;
}

.page-about .about-section .section-index {
  display: inline-block;
  margin-bottom: 14px;
  padding: 4px 10px;
  border: 1px solid rgba(138, 43, 226, 0.3);
  border-radius: 999px;
  background: rgba(138, 43, 226, 0.12);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--accent-purple);
}

.page-about .about-section h2 {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  line-height: 1.2;
  color: var(--text-white);
}

.page-about .about-section .section-sub {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-gray);
}

.page-about .card {
  background: linear-gradient(135deg, rgba(21, 42, 74, 0.9), rgba(10, 17, 40, 0.92));
  border: 1px solid rgba(74, 144, 226, 0.18);
  border-top: 2px solid var(--accent-green);
  border-radius: var(--radius);
  box-shadow: 8px 8px 0 rgba(5, 8, 16, 0.3);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-about .card:hover {
  transform: translateY(-2px);
  border-color: rgba(74, 144, 226, 0.38);
  box-shadow: 8px 10px 0 rgba(5, 8, 16, 0.34);
}

.page-about .about-idea-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-about .about-idea-narrative p {
  margin: 0 0 16px;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text-gray);
}

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

.page-about .about-idea-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .idea-card {
  padding: 20px 18px;
}

.page-about .idea-card .card-label {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(0, 229, 160, 0.1);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--accent-green);
}

.page-about .idea-card h3 {
  margin: 12px 0 8px;
  font-size: 1.05rem;
  color: var(--text-white);
}

.page-about .idea-card p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--text-gray);
}

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

.page-about .about-standard-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .standard-card {
  padding: 20px 18px;
  border-top-color: var(--accent-blue);
}

.page-about .standard-card h3 {
  margin: 0 0 10px;
  font-size: 1.05rem;
  color: var(--text-white);
}

.page-about .standard-card p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--text-gray);
}

.page-about .about-standard-figure {
  margin: 0;
  padding: 12px;
  background: var(--bg-card);
  border: 1px solid rgba(74, 144, 226, 0.2);
  border-radius: var(--radius);
}

.page-about .about-standard-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: 6px;
}

.page-about .about-standard-figure figcaption,
.page-about .about-team-figure figcaption,
.page-about .about-roadmap-figure figcaption {
  padding-top: 10px;
  font-size: 0.82rem;
  color: var(--text-gray);
}

.page-about .about-team-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-about .about-team-content > p {
  margin: 0 0 16px;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text-gray);
}

.page-about .team-breakdown {
  display: grid;
  gap: 14px;
  margin-top: 24px;
  padding: 20px 18px;
  background: rgba(10, 17, 40, 0.5);
  border: 1px solid rgba(74, 144, 226, 0.16);
  border-radius: var(--radius);
}

.page-about .team-row {
  display: grid;
  grid-template-columns: 96px 1fr 36px;
  align-items: center;
  gap: 12px;
}

.page-about .team-row > .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-gray);
}

.page-about .team-bar {
  display: block;
  height: 8px;
  overflow: hidden;
  background: rgba(245, 247, 250, 0.06);
  border-radius: 999px;
}

.page-about .bar-fill {
  display: block;
  height: 100%;
  border-radius: inherit;
}

.page-about .bar-fill.green {
  width: 25%;
  background: var(--accent-green);
}

.page-about .bar-fill.purple {
  width: 33%;
  background: var(--accent-purple);
}

.page-about .bar-fill.blue {
  width: 17%;
  background: var(--accent-blue);
}

.page-about .bar-fill.orange {
  width: 25%;
  background: var(--accent-orange);
}

.page-about .team-num {
  font-family: var(--font-mono);
  font-size: 13px;
  text-align: right;
  color: var(--text-white);
}

.page-about .about-team-figure {
  margin: 0;
  align-self: start;
  padding: 12px;
  background: var(--bg-card);
  border: 1px solid rgba(0, 229, 160, 0.2);
  border-radius: var(--radius);
}

.page-about .about-team-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: 6px;
}

.page-about .about-roadmap-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

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

.page-about .timeline-item {
  position: relative;
  padding-left: 56px;
  padding-bottom: 34px;
}

.page-about .timeline-item::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 28px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, rgba(0, 229, 160, 0.5), rgba(0, 229, 160, 0.06));
}

.page-about .timeline-item:last-child::before {
  display: none;
}

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

.page-about .timeline-meta {
  position: absolute;
  left: 0;
  top: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 24px;
  border: 1px solid rgba(0, 229, 160, 0.4);
  border-radius: 999px;
  background: rgba(0, 229, 160, 0.14);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--accent-green);
}

.page-about .timeline-body {
  padding: 16px 18px;
  background: rgba(21, 42, 74, 0.65);
  border: 1px solid rgba(74, 144, 226, 0.16);
  border-radius: var(--radius);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-about .timeline-item:hover .timeline-body {
  border-color: var(--accent-green);
  box-shadow: 6px 6px 0 rgba(0, 229, 160, 0.08);
}

.page-about .timeline-body h3 {
  margin: 0 0 6px;
  font-size: 1.02rem;
  color: var(--text-white);
}

.page-about .timeline-body p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--text-gray);
}

.page-about .about-roadmap-figure {
  margin: 0;
  align-self: start;
  padding: 12px;
  background: rgba(10, 17, 40, 0.5);
  border: 1px solid rgba(0, 229, 160, 0.18);
  border-radius: var(--radius);
}

.page-about .about-roadmap-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: 6px;
}

.page-about .about-partner-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .partner-card {
  padding: 20px 18px;
  border-top-color: var(--accent-purple);
}

.page-about .partner-card h3 {
  margin: 0 0 10px;
  font-size: 1.05rem;
  color: var(--text-white);
}

.page-about .partner-card p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--text-gray);
}

.page-about .about-partner-note {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-top: 28px;
  padding: 18px 20px;
  background: rgba(255, 77, 79, 0.06);
  border-left: 3px solid var(--warning-red);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.page-about .about-partner-note .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--warning-red);
}

.page-about .about-partner-note p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--text-gray);
}

.page-about .about-more-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 0 20px 64px;
}

.page-about .about-more-links .btn {
  text-decoration: none;
}

@media (min-width: 640px) {
  .page-about .about-hero {
    padding-top: 96px;
  }

  .page-about .about-hero-stats .stat-block {
    min-width: 130px;
  }

  .page-about .about-standard-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .about-partner-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .page-about .about-hero {
    padding: 128px 0 64px;
    background-size: 40px 40px;
  }

  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.75fr);
    gap: 64px;
    align-items: start;
  }

  .page-about .about-hero-stats .stat-value {
    font-size: 2rem;
  }

  .page-about .about-index {
    position: sticky;
    top: 120px;
    margin-top: 12px;
  }

  .page-about .about-section {
    padding: 96px 0;
  }

  .page-about .about-section .section-head {
    margin-bottom: 48px;
  }

  .page-about .about-idea-grid {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 56px;
  }

  .page-about .about-standard-wrap {
    gap: 36px;
  }

  .page-about .about-team-layout {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 56px;
    align-items: start;
  }

  .page-about .about-roadmap-layout {
    grid-template-columns: minmax(0, 1fr) 420px;
    gap: 56px;
    align-items: start;
  }

  .page-about .about-partner-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about .about-more-links {
    padding-top: 8px;
  }
}