.page-about {
  --about-card-cut: 14px;
  position: relative;
  overflow: hidden;
  background: var(--color-primary);
  color: var(--color-text-main);
  font-family: var(--font-main);
  line-height: 1.6;
}

.page-about::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(176, 184, 196, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(176, 184, 196, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
  z-index: 0;
}

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

.page-about img {
  max-width: 100%;
  height: auto;
}

.page-about .container {
  width: 100%;
}

.page-about .breadcrumb-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-top: clamp(18px, 4vw, 36px);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--color-text-mute);
}

.page-about .breadcrumb-nav a {
  color: var(--color-text-mute);
  text-decoration: none;
  transition: color var(--transition-speed) ease;
}

.page-about .breadcrumb-nav a:hover {
  color: var(--color-accent2);
}

.page-about .crumb-sep {
  color: var(--color-accent1);
}

.page-about .about-hero {
  position: relative;
  padding: clamp(40px, 7vw, 90px) 0 clamp(36px, 6vw, 72px);
}

.page-about .hero-grid {
  display: grid;
  gap: 32px;
  align-items: center;
}

.page-about .hero-title-block,
.page-about .hero-visual {
  min-width: 0;
}

.page-about .section-label {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent1);
  margin-bottom: 20px;
}

.page-about .page-title-lg {
  margin: 0;
  font-size: clamp(36px, 8vw, 92px);
  line-height: 1.02;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text-main);
  text-wrap: balance;
}

.page-about .title-focus {
  color: var(--color-text-main);
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .page-about .title-focus {
    background: linear-gradient(92deg, var(--color-accent1) 0%, var(--color-accent2) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
}

.page-about .hero-lead {
  margin: 26px 0 0;
  max-width: 34em;
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-text-mute);
}

.page-about .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.page-about .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 24px;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: transform var(--transition-speed) ease, background var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

.page-about .btn:hover {
  transform: translateY(-2px);
}

.page-about .btn-cta:hover {
  background: var(--color-accent-hover);
}

.page-about .btn-secondary:hover {
  border-color: var(--color-accent2);
  color: var(--color-accent2);
}

.page-about .hero-figure,
.page-about .team-figure {
  margin: 0;
  position: relative;
}

.page-about .hero-figure {
  aspect-ratio: 6 / 4;
  background: var(--color-secondary);
}

.page-about .hero-figure img,
.page-about .team-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-about .hero-figure img {
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 22px 100%, 0 calc(100% - 22px));
}

.page-about .image-caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--color-text-mute);
}

.page-about .hero-note {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--color-accent2);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-mute);
}

.page-about .hero-stat-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 48px;
}

.page-about .hero-stat-strip .stat-card:last-child {
  grid-column: 1 / -1;
}

.page-about .stat-card {
  padding: 18px 20px;
  background: var(--color-secondary);
  border-top: 3px solid var(--color-accent2);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
}

.page-about .stat-number {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-accent2);
}

.page-about .stat-label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--color-text-mute);
}

.page-about .page-sub-note {
  position: absolute;
  top: 80px;
  right: 0;
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--color-text-mute);
  opacity: 0.72;
  z-index: 2;
}

.page-about .origin-panel {
  padding: clamp(56px, 9vw, 110px) 0;
  margin-top: 20px;
  background: var(--color-secondary);
}

.page-about .section-header {
  margin-bottom: 40px;
}

.page-about .section-header h2 {
  margin: 0;
  font-size: clamp(30px, 5vw, 54px);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-about .section-note {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--color-accent2);
}

.page-about .origin-grid {
  display: grid;
  gap: 36px;
}

.page-about .origin-copy p {
  margin: 0 0 18px;
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-text-mute);
}

.page-about .origin-copy strong {
  color: var(--color-text-main);
  font-weight: 700;
}

.page-about .origin-flaws {
  display: grid;
  gap: 16px;
}

.page-about .flaw-card {
  position: relative;
  padding: 22px 24px 22px 64px;
  background: var(--color-primary);
  border: 1px solid rgba(255, 107, 0, 0.25);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}

.page-about .flaw-index {
  position: absolute;
  left: 20px;
  top: 22px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-accent1);
}

.page-about .flaw-card h3 {
  margin: 0 0 6px;
  font-size: 18px;
  color: var(--color-text-main);
}

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

.page-about .timeline-section {
  padding: clamp(64px, 9vw, 120px) 0;
  background: linear-gradient(180deg, rgba(18, 42, 62, 0) 0%, rgba(18, 42, 62, 0.3) 50%, rgba(18, 42, 62, 0) 100%);
}

.page-about .timeline-wrap {
  position: relative;
}

.page-about .timeline-bg {
  position: absolute;
  left: -200px;
  top: 10px;
  bottom: 30px;
  width: 260px;
  opacity: 0.18;
  pointer-events: none;
  overflow: hidden;
}

.page-about .timeline-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.7);
}

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

.page-about .about-timeline-list::before {
  content: "";
  position: absolute;
  left: 28px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--color-accent2), var(--color-accent1));
}

.page-about .timeline-item {
  position: relative;
  max-width: 560px;
  padding: 0 0 44px 78px;
}

.page-about .timeline-item::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 6px;
  width: 18px;
  height: 18px;
  background: var(--color-accent1);
  border: 2px solid var(--color-primary);
  transform: rotate(45deg);
  z-index: 1;
}

.page-about .year-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--color-accent2);
  background: rgba(0, 255, 136, 0.08);
  border: 1px solid rgba(0, 255, 136, 0.35);
  padding: 6px 14px;
  margin-bottom: 14px;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
}

.page-about .timeline-card {
  background: var(--color-secondary);
  padding: 24px 26px;
  border-left: 3px solid var(--color-accent1);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}

.page-about .timeline-card h3 {
  margin: 0 0 10px;
  font-size: 20px;
  color: var(--color-text-main);
}

.page-about .timeline-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text-mute);
}

.page-about .philosophy-section {
  position: relative;
  padding: clamp(64px, 9vw, 120px) 0;
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-panel-extra) 100%);
  overflow: hidden;
}

.page-about .philosophy-section::before {
  content: "";
  display: block;
  height: 6px;
  background: linear-gradient(90deg, transparent 5%, var(--color-accent1) 50%, transparent 95%);
}

.page-about .philosophy-lead {
  max-width: 44em;
  margin: 0 0 40px;
  font-size: 18px;
  line-height: 1.7;
  color: var(--color-text-mute);
}

.page-about .philosophy-grid {
  display: grid;
  gap: 22px;
}

.page-about .philosophy-card {
  position: relative;
  padding: 28px 26px 24px;
  background: var(--color-primary);
  border: 1px solid rgba(176, 184, 196, 0.18);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.page-about .philosophy-icon {
  display: block;
  margin-bottom: 18px;
  font-size: 30px;
  line-height: 1;
  color: var(--color-accent1);
}

.page-about .philosophy-card h3 {
  margin: 0 0 6px;
  font-size: 28px;
  color: var(--color-text-main);
}

.page-about .philosophy-sub {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-accent2);
}

.page-about .philosophy-card p {
  margin: 0 0 18px;
  font-size: 15px;
  color: var(--color-text-mute);
}

.page-about .philosophy-metric {
  display: block;
  padding-top: 14px;
  border-top: 1px dashed rgba(176, 184, 196, 0.3);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-accent1);
}

.page-about .philosophy-chart {
  margin-top: 52px;
  padding: 24px;
  background: rgba(10, 26, 43, 0.5);
  border: 1px solid rgba(0, 255, 136, 0.2);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.page-about .philosophy-chart svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .chart-caption {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--color-text-mute);
}

.page-about .team-section {
  padding: clamp(64px, 9vw, 120px) 0;
}

.page-about .team-grid {
  display: grid;
  gap: 36px;
  align-items: center;
}

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

.page-about .team-figure {
  aspect-ratio: 8 / 5;
  background: var(--color-secondary);
}

.page-about .team-figure img {
  clip-path: polygon(16px 0, calc(100% - 20px) 0, 100% 20px, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%, 0 16px);
}

.page-about .team-intro {
  margin: 0 0 24px;
  font-size: 18px;
  line-height: 1.7;
  color: var(--color-text-mute);
}

.page-about .team-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .team-list li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 18px 20px;
  background: var(--color-secondary);
  border-left: 3px solid var(--color-accent2);
}

.page-about .team-code {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-accent1);
  padding-top: 2px;
}

.page-about .team-list h3 {
  margin: 0 0 6px;
  font-size: 17px;
  color: var(--color-text-main);
}

.page-about .team-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-text-mute);
}

.page-about .team-tech {
  margin: 24px 0 0;
  padding: 16px 18px;
  border: 1px dashed rgba(176, 184, 196, 0.4);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-accent2);
}

.page-about .trust-section {
  padding: clamp(64px, 9vw, 110px) 0;
  background: var(--color-secondary);
  clip-path: polygon(0 34px, 34px 0, 100% 0, 100% 100%, 0 100%);
}

.page-about .trust-grid {
  display: grid;
  gap: 22px;
}

.page-about .trust-card {
  position: relative;
  padding: 28px 26px;
  background: var(--color-primary);
  border: 1px solid rgba(255, 107, 0, 0.3);
  clip-path: polygon(14px 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%, 0 14px);
}

.page-about .trust-icon {
  display: block;
  margin-bottom: 16px;
  color: var(--color-accent1);
  font-size: 24px;
}

.page-about .trust-card h3 {
  margin: 0 0 10px;
  font-size: 19px;
  color: var(--color-text-main);
}

.page-about .trust-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text-mute);
}

.page-about .trust-statement {
  margin: 46px 0 0;
  padding-left: 20px;
  border-left: 4px solid var(--color-accent1);
  font-size: clamp(18px, 2.6vw, 26px);
  font-weight: 700;
  line-height: 1.45;
  max-width: 880px;
  color: var(--color-text-main);
}

.page-about .cta-section {
  padding: clamp(60px, 9vw, 110px) 0;
  background:
    radial-gradient(circle at 70% 20%, rgba(255, 107, 0, 0.14), transparent 45%),
    var(--color-primary);
  text-align: center;
}

.page-about .cta-section .section-label {
  color: var(--color-accent2);
}

.page-about .cta-section h2 {
  margin: 0 auto;
  max-width: 840px;
  font-size: clamp(34px, 6vw, 68px);
  line-height: 1.06;
  font-weight: 800;
}

.page-about .cta-desc {
  margin: 22px auto 0;
  max-width: 640px;
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-text-mute);
}

.page-about .cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-top: 34px;
}

@media (min-width: 900px) {
  .page-about .hero-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 64px;
  }

  .page-about .hero-stat-strip {
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
  }

  .page-about .hero-stat-strip .stat-card:last-child {
    grid-column: auto;
  }

  .page-about .stat-card {
    padding: 24px 22px;
  }

  .page-about .origin-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 72px;
    align-items: center;
  }

  .page-about .timeline-bg {
    left: -80px;
    width: 320px;
  }

  .page-about .about-timeline-list::before {
    left: 50%;
    transform: translateX(-1px);
  }

  .page-about .timeline-item {
    width: calc(50% - 72px);
    max-width: none;
    margin-left: auto;
    margin-right: 0;
    padding: 0 0 48px 52px;
    text-align: left;
  }

  .page-about .timeline-item.is-left {
    margin-left: 0;
    margin-right: auto;
    padding: 0 52px 48px 0;
    text-align: right;
  }

  .page-about .timeline-item::before {
    left: -81px;
  }

  .page-about .timeline-item.is-left::before {
    left: auto;
    right: -81px;
  }

  .page-about .philosophy-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }

  .page-about .philosophy-card:nth-child(2) {
    margin-top: 36px;
  }

  .page-about .team-grid {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 72px;
  }

  .page-about .trust-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
  }
}

@media (max-width: 899px) {
  .page-about .page-sub-note {
    display: none;
  }
}