.page-about {
  --paper-sheen: linear-gradient(150deg, #f5f2e6 0%, #fbf7e9 44%, #e3ecdc 100%);
  position: relative;
  background: var(--paper-sheen);
  overflow: clip;
}
.page-about .brand-hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  isolation: isolate;
  overflow: hidden;
  background: linear-gradient(135deg, var(--c-paper) 0%, var(--c-paper) 55%, var(--c-primary) 130%);
}
.page-about .hero-pic {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.3;
  mix-blend-mode: multiply;
  z-index: -2;
}
.page-about .brand-hero::before {
  content: "";
  position: absolute;
  top: -15%;
  right: -8%;
  width: 55%;
  height: 72%;
  background: var(--c-primary);
  border: 6px solid var(--c-ink);
  box-shadow: var(--shadow-hard);
  transform: rotate(8deg) skewX(-6deg);
  z-index: -1;
}
.page-about .brand-hero::after {
  content: "";
  position: absolute;
  bottom: -15%;
  left: -8%;
  width: 48%;
  height: 48%;
  background: var(--c-accent);
  border: 5px solid var(--c-ink);
  box-shadow: var(--shadow-hard);
  transform: rotate(-6deg) skewX(8deg);
  z-index: -1;
}
.page-about .hero-inner {
  position: relative;
  z-index: 1;
  width: min(var(--container), 92%);
  margin: 0 auto;
  padding: 5.5rem 0;
}
.page-about .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.4rem;
}
.page-about .breadcrumb a {
  color: var(--c-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-size: 0.9rem;
}
.page-about .breadcrumb-sep {
  color: var(--c-gray);
}
.page-about .breadcrumb-current {
  color: var(--c-accent-dark);
  font-weight: 700;
  font-size: 0.9rem;
}
.page-about .hero-kicker {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  color: var(--c-deep);
  background: rgba(245, 242, 230, 0.88);
  border: 1px solid rgba(26, 26, 26, 0.25);
  padding: 0.45rem 0.9rem;
  margin-bottom: 1.2rem;
}
.page-about .hero-title {
  font-family: var(--font-head);
  font-size: clamp(2.6rem, 10vw, 5.2rem);
  line-height: 1.04;
  color: var(--c-ink);
  background: var(--c-paper);
  display: inline-block;
  padding: 0.14em 0.38em;
  border: 0.3rem solid var(--c-ink);
  box-shadow: 10px 10px 0 rgba(26, 26, 26, 0.18);
  margin: 0 0 1.6rem;
}
.page-about .hero-lead {
  max-width: 34rem;
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--c-deep);
  background: rgba(245, 242, 230, 0.82);
  padding: 1rem 1.2rem;
  border-left: 0.4rem solid var(--c-accent);
  margin: 0 0 1.8rem;
}
.page-about .hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}
.page-about .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.4rem;
  font-weight: 700;
  text-decoration: none;
  border: 3px solid var(--c-ink);
  box-shadow: 5px 5px 0 rgba(26, 26, 26, 0.18);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  cursor: pointer;
}
.page-about .btn-primary {
  background: var(--c-accent);
  color: var(--c-paper);
}
.page-about .btn-outline {
  background: var(--c-paper);
  color: var(--c-deep);
}
.page-about .btn:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0 rgba(26, 26, 26, 0.2);
}
.page-about .origin-section {
  padding: 5rem 0;
}
.page-about .origin-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
.page-about .origin-copy {
  max-width: 44rem;
}
.page-about .section-head {
  margin-bottom: 2.2rem;
  padding-left: 1.1rem;
  border-left: 0.45rem solid var(--c-accent);
}
.page-about .section-number {
  display: block;
  font-family: var(--font-head);
  font-size: 1.6rem;
  line-height: 1.2;
  color: var(--c-accent-dark);
  letter-spacing: 0.3em;
}
.page-about .section-title {
  font-family: var(--font-head);
  font-size: clamp(2rem, 5vw, 3.1rem);
  line-height: 1.15;
  color: var(--c-deep);
  margin: 0.3rem 0 0.4rem;
}
.page-about .section-lead {
  font-size: 1.02rem;
  color: var(--c-gray);
  line-height: 1.6;
  margin: 0;
}
.page-about .origin-copy p {
  line-height: 1.8;
  margin: 0 0 1.2rem;
  color: var(--c-ink);
}
.page-about .origin-sign {
  font-weight: 700;
  color: var(--c-deep);
  border-top: 2px solid rgba(27, 78, 107, 0.3);
  padding-top: 0.9rem;
  margin-top: 1.4rem;
}
.page-about .origin-points {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.9rem;
}
.page-about .origin-points li {
  border: 2px solid var(--c-ink);
  background: var(--c-paper);
  padding: 1rem 0.5rem;
  text-align: center;
  box-shadow: var(--shadow-hard-sm);
}
.page-about .point-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--c-accent-dark);
}
.page-about .origin-points li span:last-child {
  display: block;
  font-size: 0.8rem;
  color: var(--c-gray);
  margin-top: 0.3rem;
}
.page-about .origin-water {
  position: relative;
  min-height: 22rem;
  border: 4px solid var(--c-ink);
  box-shadow: var(--shadow-hard);
  background: linear-gradient(160deg, rgba(0, 168, 157, 0.14) 0%, rgba(245, 242, 230, 1) 72%);
  overflow: hidden;
}
.page-about .origin-water svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
.page-about .timeline-section {
  position: relative;
  padding: 5rem 0 6.5rem;
  color: var(--c-paper);
  background: linear-gradient(180deg, #0f3142 0%, var(--c-deep) 50%, var(--c-deep-dark) 100%);
  overflow: hidden;
}
.page-about .timeline-section .section-head {
  border-left-color: var(--c-primary);
}
.page-about .timeline-section .section-number {
  color: var(--c-aux);
}
.page-about .timeline-section .section-title,
.page-about .timeline-section .section-lead {
  color: var(--c-paper);
}
.page-about .timeline-holder {
  position: relative;
  max-width: 72rem;
  margin: 0 auto;
  padding: 2.5rem 1rem 1rem;
}
.page-about .timeline-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.16;
  filter: grayscale(18%);
}
.page-about .timeline-river {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  transform: translateX(-50%);
  z-index: 1;
  pointer-events: none;
}
.page-about .timeline-list {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 2.4rem;
  max-width: 62rem;
  margin: 0 auto;
}
.page-about .timeline-row {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  width: 100%;
  align-self: flex-start;
  padding: 1rem;
  background: rgba(245, 242, 230, 0.92);
  border: 3px solid var(--c-ink);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.32);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.page-about .timeline-row:hover {
  transform: translate(-3px, -3px);
  border-color: var(--c-accent);
  box-shadow: 10px 10px 0 rgba(0, 0, 0, 0.35);
}
.page-about .timeline-stamp {
  flex: 0 0 auto;
  width: 4.2rem;
  height: 4.2rem;
  border-radius: 50%;
  border: 0.25rem solid var(--c-accent);
  background: var(--c-paper);
  color: var(--c-accent-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-head);
  font-size: 1.5rem;
  box-shadow: 0 0 0 0.3rem rgba(243, 106, 59, 0.22), 4px 4px 0 rgba(26, 26, 26, 0.2);
  transform: rotate(-8deg);
}
.page-about .timeline-body h3 {
  font-family: var(--font-head);
  font-size: 1.25rem;
  color: var(--c-deep);
  margin: 0 0 0.3rem;
}
.page-about .timeline-body p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--c-ink);
  margin: 0;
}
.page-about .cert-section {
  padding: 5rem 0;
  background: var(--c-paper);
}
.page-about .grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.6rem;
}
.page-about .cert-card {
  border: 4px solid var(--c-ink);
  box-shadow: var(--shadow-hard);
  background: var(--c-paper);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.page-about .cert-card:hover {
  transform: translate(-4px, -4px);
  box-shadow: 12px 12px 0 rgba(26, 26, 26, 0.22);
}
.page-about .cert-card .card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 2px dashed rgba(26, 26, 26, 0.3);
  padding: 1.4rem 1.4rem 1rem;
}
.page-about .cert-card .card-head h3 {
  font-family: var(--font-head);
  font-size: 1.35rem;
  color: var(--c-deep);
  margin: 0;
}
.page-about .cert-card .card-body {
  padding: 1rem 1.4rem 1.4rem;
  line-height: 1.7;
  color: var(--c-ink);
}
.page-about .cert-badge {
  white-space: nowrap;
  font-size: 0.78rem;
  font-weight: 700;
  border: 2px solid var(--c-deep);
  background: var(--c-aux);
  color: var(--c-deep);
  padding: 0.25rem 0.6rem;
}
.page-about .cert-note {
  margin-top: 2.2rem;
  padding: 1.5rem 1.8rem;
  border: 0.25rem solid var(--c-deep);
  background: rgba(27, 78, 107, 0.08);
  font-weight: 600;
  line-height: 1.7;
  color: var(--c-deep);
}
.page-about .cert-more {
  margin-top: 1rem;
  border-top: 1px solid rgba(26, 26, 26, 0.2);
}
.page-about .accordion-trigger {
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  padding: 0.8rem 0;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--c-deep);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.page-about .accordion-icon {
  font-size: 1.2rem;
  color: var(--c-accent-dark);
  transition: transform 0.25s ease;
}
.page-about .accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.page-about .accordion-item[data-open="true"] .accordion-panel {
  max-height: 26rem;
}
.page-about .accordion-item[data-open="true"] .accordion-icon {
  transform: rotate(135deg);
}
.page-about .accordion-panel-inner {
  padding-bottom: 0.8rem;
  color: var(--c-gray);
  line-height: 1.6;
  font-size: 0.92rem;
}
.page-about .team-section {
  padding: 5rem 0;
  background: linear-gradient(135deg, #d8e9d8 0%, var(--c-paper) 72%);
}
.page-about .team-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.2rem;
  align-items: center;
}
.page-about .media-frame {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: var(--c-deep);
}
.page-about .media-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-about .media-frame[data-ratio="4/3"] {
  aspect-ratio: 4 / 3;
}
.page-about .team-media {
  border: 4px solid var(--c-ink);
  box-shadow: var(--shadow-hard);
  transform: rotate(-1.2deg);
}
.page-about .team-media img {
  filter: grayscale(28%) contrast(1.02);
}
.page-about .team-intro {
  max-width: 40rem;
  line-height: 1.8;
  margin: 0 0 1.8rem;
  color: var(--c-ink);
  font-weight: 500;
}
.page-about .role-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.1rem;
}
.page-about .role-card {
  border: 3px solid var(--c-ink);
  background: var(--c-paper);
  padding: 1.2rem 1.1rem;
  box-shadow: 6px 6px 0 rgba(26, 26, 26, 0.12);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.page-about .role-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 rgba(26, 26, 26, 0.16);
}
.page-about .role-avatar {
  width: 2.8rem;
  height: 2.8rem;
  border-radius: 999px;
  background: var(--c-deep);
  color: var(--c-paper);
  font-family: var(--font-head);
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--c-accent);
  margin-bottom: 0.7rem;
}
.page-about .role-tag {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  padding: 0.2rem 0.6rem;
  background: var(--c-primary);
  color: #fff;
  border-radius: 2px;
}
.page-about .role-card h3 {
  font-size: 1.05rem;
  color: var(--c-deep);
  margin: 0.5rem 0 0.4rem;
}
.page-about .role-desc {
  font-size: 0.88rem;
  color: var(--c-gray);
  line-height: 1.6;
  margin: 0;
  opacity: 0.55;
  transition: opacity 0.25s ease;
}
.page-about .role-card:hover .role-desc,
.page-about .role-card:focus-within .role-desc {
  opacity: 1;
}
.page-about .eco-section {
  padding: 0;
}
.page-about .eco-band {
  position: relative;
  background: var(--c-deep);
  color: var(--c-paper);
  padding: 5rem 0;
  overflow: hidden;
}
.page-about .eco-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 88% 18%, rgba(0, 168, 157, 0.34), transparent 46%),
    radial-gradient(ellipse at 8% 92%, rgba(243, 106, 59, 0.2), transparent 42%);
  pointer-events: none;
}
.page-about .theme-band-inner {
  position: relative;
  z-index: 1;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.page-about .eco-band .section-head {
  border-left-color: var(--c-accent);
}
.page-about .eco-band .section-number {
  color: var(--c-aux);
}
.page-about .eco-band .section-title,
.page-about .eco-band .section-lead,
.page-about .eco-band p {
  color: var(--c-paper);
}
.page-about .theme-band-inner > p {
  max-width: 48rem;
  line-height: 1.8;
}
.page-about .eco-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.3rem;
  margin-top: 3rem;
}
.page-about .eco-item {
  border: 2px solid rgba(245, 242, 230, 0.82);
  padding: 1.5rem;
  background: rgba(26, 26, 26, 0.22);
  transition: background 0.25s ease, transform 0.25s ease;
}
.page-about .eco-item:hover {
  background: rgba(26, 26, 26, 0.36);
  transform: translateY(-3px);
}
.page-about .eco-item span {
  font-family: var(--font-head);
  font-size: 1.3rem;
}
.page-about .eco-item p {
  margin: 0.6rem 0 0;
  font-size: 0.9rem;
  color: rgba(245, 242, 230, 0.75);
}
.page-about .footer-cta {
  padding: 5rem 0;
}
.page-about .cta-box {
  max-width: 46rem;
  margin: 0 auto;
  text-align: center;
  border: 5px solid var(--c-ink);
  background: var(--c-paper);
  box-shadow: var(--shadow-hard);
  padding: 2.8rem 1.6rem;
}
.page-about .cta-box h2 {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  color: var(--c-deep);
  margin: 0 0 1rem;
}
.page-about .cta-box p {
  line-height: 1.7;
  color: var(--c-gray);
  margin-bottom: 1.8rem;
}
.page-about .cta-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.8rem;
}

@media (min-width: 640px) {
  .page-about .role-grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-about .eco-row {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-about .origin-points {
    gap: 1.2rem;
  }
  .page-about .point-num {
    font-size: 2.2rem;
  }
}

@media (min-width: 768px) {
  .page-about .timeline-row {
    width: 72%;
  }
  .page-about .timeline-row:nth-child(even) {
    align-self: flex-end;
  }
  .page-about .timeline-row:nth-child(odd) {
    align-self: flex-start;
  }
  .page-about .timeline-stamp {
    width: 5rem;
    height: 5rem;
    font-size: 1.7rem;
  }
}

@media (min-width: 900px) {
  .page-about .origin-grid {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
  }
  .page-about .team-layout {
    grid-template-columns: 0.9fr 1.1fr;
  }
  .page-about .grid-2 {
    grid-template-columns: 1fr 1fr;
  }
  .page-about .hero-inner {
    padding: 7rem 0;
  }
}
@media (max-width: 767px) {
  .page-about .role-desc {
    opacity: 1;
  }
  .page-about .brand-hero {
    min-height: 76vh;
  }
  .page-about .timeline-holder {
    padding-left: 0.5rem;
    padding-right: 0.5rem;
  }
  .page-about .cta-box {
    padding: 2rem 1rem;
  }
}
@media (prefers-reduced-motion: reduce) {
  .page-about .btn,
  .page-about .role-card,
  .page-about .timeline-row,
  .page-about .cert-card,
  .page-about .eco-item {
    transition: none;
  }
  .page-about .role-desc {
    opacity: 1;
  }
}