.page-about {
  --about-ink: var(--ink);
  --about-neon: var(--neon);
  --about-silver: var(--silver);
  --about-rice: var(--rice);
  --about-paper: var(--paper);
  background: var(--paper);
  overflow-x: clip;
}

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

/* ===================== HERO ===================== */
.page-about .about-hero {
  background: var(--ink);
  color: var(--paper);
  padding: clamp(2rem, 5vw, 3.5rem) 0 2.25rem;
  position: relative;
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(240, 240, 240, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(240, 240, 240, 0.07) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
}

.page-about .about-hero .container {
  position: relative;
}

.page-about .about-hero .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  font-family: var(--font-index);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: rgba(245, 240, 230, 0.65);
  margin-bottom: 2rem;
}

.page-about .about-hero .breadcrumb-link {
  color: rgba(245, 240, 230, 0.65);
  text-decoration: none;
  transition: color 0.2s;
}

.page-about .about-hero .breadcrumb-link:hover {
  color: var(--neon);
}

.page-about .about-hero .breadcrumb-sep {
  color: rgba(245, 240, 230, 0.4);
}

.page-about .about-hero .breadcrumb-current {
  color: var(--neon);
}

.page-about .about-hero-grid {
  display: grid;
  gap: 1.5rem;
}

.page-about .about-hero .page-overline {
  color: var(--neon);
  font-family: var(--font-index);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.page-about .about-hero .page-title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.25rem, 5.5vw, 4.25rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
  max-width: 14em;
}

.page-about .about-hero .page-lede {
  font-size: 1rem;
  line-height: 1.8;
  color: rgba(245, 240, 230, 0.82);
  max-width: 46em;
  margin: 0;
}

.page-about .about-hero-meta {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  border-left: 2px solid rgba(192, 255, 0, 0.4);
  padding-left: 1rem;
  justify-content: flex-end;
}

.page-about .about-hero-coord {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-about .about-hero-coord span {
  font-family: var(--font-data);
  font-size: 0.72rem;
  color: var(--neon);
  background: rgba(192, 255, 0, 0.12);
  padding: 0.3rem 0.55rem;
  letter-spacing: 0.08em;
  border: 1px solid rgba(192, 255, 0, 0.25);
}

.page-about .about-hero-note {
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(245, 240, 230, 0.7);
  margin: 0;
}

.page-about .about-hero-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  margin-top: 2.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(176, 183, 192, 0.3);
}

.page-about .about-hero-strip span {
  font-family: var(--font-index);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: rgba(176, 183, 192, 0.75);
}

.page-about .about-hero-strip span::before {
  content: "// ";
  color: var(--neon);
}

@media (min-width: 860px) {
  .page-about .about-hero-grid {
    grid-template-columns: 1.6fr 1fr;
    gap: 3rem;
    align-items: end;
  }
}

/* ===================== LAYOUT ===================== */
.page-about .about-layout {
  display: grid;
  gap: 2rem;
  padding-top: 2.5rem;
  padding-bottom: 4rem;
}

.page-about .about-main {
  min-width: 0;
}

@media (min-width: 1024px) {
  .page-about .about-layout {
    grid-template-columns: 230px minmax(0, 1fr);
    gap: 3.5rem;
    padding-top: 4rem;
  }

  .page-about .about-index {
    position: sticky;
    top: 120px;
    align-self: start;
  }
}

/* ===================== SIDE INDEX ===================== */
.page-about .about-index-inner {
  background: var(--deep-ink);
  border-top: 3px solid var(--neon);
  padding: 1.25rem;
}

.page-about .about-index-inner .section-label {
  color: var(--neon);
  margin-bottom: 1rem;
  font-family: var(--font-index);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
}

.page-about .about-spy-nav {
  display: flex;
  flex-direction: column;
}

.page-about .about-spy-link {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.65rem 0;
  text-decoration: none;
  border-bottom: 1px solid rgba(176, 183, 192, 0.18);
  transition: background 0.2s, padding 0.2s;
}

.page-about .about-spy-num {
  font-family: var(--font-data);
  font-size: 0.68rem;
  color: var(--silver);
  letter-spacing: 0.08em;
}

.page-about .about-spy-name {
  color: rgba(245, 240, 230, 0.75);
  font-size: 0.9rem;
  transition: color 0.2s;
}

.page-about .about-spy-link.is-active .about-spy-name,
.page-about .about-spy-link:hover .about-spy-name {
  color: var(--neon);
}

.page-about .about-spy-link.is-active {
  padding-left: 0.35rem;
}

.page-about .about-index-foot {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(176, 183, 192, 0.18);
}

.page-about .about-index-line {
  display: block;
  width: 42px;
  height: 3px;
  background: var(--neon);
  margin-bottom: 0.75rem;
}

.page-about .about-index-foot p {
  font-size: 0.78rem;
  line-height: 1.6;
  color: rgba(176, 183, 192, 0.8);
  margin: 0;
}

/* ===================== SECTION HEADER ===================== */
.page-about .about-section {
  margin-bottom: 4rem;
  scroll-margin-top: 140px;
}

.page-about .about-section-header {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--ink);
}

.page-about .about-section-num {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--neon);
  background: var(--ink);
  padding: 0.35rem 0.6rem;
  clip-path: var(--chamfer-sm);
  line-height: 1;
  white-space: nowrap;
}

.page-about .about-section-title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 900;
  color: var(--ink);
  margin: 0;
  letter-spacing: -0.01em;
}

.page-about .about-section-sub {
  font-family: var(--font-index);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--mid-blue);
  margin: 0.3rem 0 0;
  text-transform: uppercase;
}

/* ===================== 01 WHO WE ARE ===================== */
.page-about .about-who-grid {
  display: grid;
  gap: 1.5rem;
}

.page-about .about-who-copy p:not(.about-lead-text) {
  font-size: 0.95rem;
  line-height: 1.75;
  color: #3a4250;
}

.page-about .about-lead-text {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--ink);
  margin: 0 0 1.25rem;
  letter-spacing: 0.01em;
}

.page-about .about-who-copy strong {
  color: var(--ink);
  border-bottom: 2px solid var(--neon);
  padding-bottom: 1px;
  font-weight: 700;
}

.page-about .about-who-meta {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
}

.page-about .about-who-meta li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--ink);
  padding: 0.55rem 0;
  border-bottom: 1px dashed rgba(176, 183, 192, 0.6);
}

.page-about .about-who-dot {
  width: 8px;
  height: 8px;
  background: var(--neon);
  border: 1px solid var(--ink);
  transform: rotate(45deg);
  flex-shrink: 0;
}

.page-about .about-who-figure {
  margin: 0;
  background: var(--rice);
  border: 1px solid var(--silver);
  padding: 0.65rem;
  position: relative;
}

.page-about .about-who-figure::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 34px;
  height: 34px;
  background: var(--neon);
  clip-path: polygon(100% 0, 100% 100%, 0 0);
  opacity: 0.85;
}

.page-about .about-who-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

.page-about .about-who-figure figcaption {
  font-size: 0.78rem;
  color: #4a5560;
  padding: 0.75rem 0.25rem 0.2rem;
  font-family: var(--font-index);
  letter-spacing: 0.04em;
}

@media (min-width: 900px) {
  .page-about .about-who-grid {
    grid-template-columns: 1fr 0.9fr;
    gap: 2.5rem;
    align-items: start;
  }
}

/* ===================== 02 TIMELINE ===================== */
.page-about .about-timeline {
  position: relative;
  padding-left: 32px;
}

.page-about .about-timeline-rail {
  position: absolute;
  left: 10px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: var(--ink);
}

.page-about .about-milestone {
  position: relative;
  margin-bottom: 2rem;
  box-sizing: border-box;
}

.page-about .about-milestone::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 16px;
  width: 12px;
  height: 12px;
  background: var(--paper);
  border: 3px solid var(--ink);
  border-radius: 50%;
  z-index: 1;
}

.page-about .about-milestone-current::before {
  background: var(--neon);
  box-shadow: 0 0 0 4px rgba(192, 255, 0, 0.3);
}

.page-about .about-milestone-date {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  line-height: 1;
  color: var(--ink);
  margin-bottom: 0.35rem;
  letter-spacing: -0.02em;
  display: inline-block;
}

.page-about .about-milestone-current .about-milestone-date {
  color: var(--neon);
  background: var(--ink);
  padding: 0.2rem 0.5rem 0.3rem;
  clip-path: var(--chamfer-sm);
}

.page-about .about-milestone-body h3 {
  font-size: 1rem;
  font-weight: 900;
  color: var(--ink);
  margin: 0 0 0.4rem;
}

.page-about .about-milestone-body p {
  font-size: 0.88rem;
  line-height: 1.7;
  color: #3a4250;
  margin: 0;
}

.page-about .about-milestone-detail {
  margin-top: 0.75rem;
  border-left: 2px solid var(--neon);
  background: var(--rice);
}

.page-about .about-milestone-detail summary {
  cursor: pointer;
  font-family: var(--font-index);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--mid-blue);
  padding: 0.45rem 0.6rem;
  list-style: none;
  user-select: none;
}

.page-about .about-milestone-detail summary::-webkit-details-marker {
  display: none;
}

.page-about .about-milestone-detail summary::before {
  content: "+ ";
  color: var(--ink);
  font-weight: 700;
}

.page-about .about-milestone-detail[open] summary::before {
  content: "– ";
}

.page-about .about-milestone-detail p {
  font-size: 0.8rem;
  line-height: 1.65;
  color: #3a4250;
  padding: 0 0.6rem 0.6rem;
  margin: 0;
}

.page-about .about-timeline-figure {
  margin: 0 0 2rem;
  padding: 0.5rem;
  background: var(--rice);
  border: 1px solid var(--silver);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-about .about-timeline-figure img {
  display: block;
  width: 100%;
  max-width: 300px;
  height: auto;
  object-fit: cover;
  aspect-ratio: 1 / 1;
}

.page-about .about-timeline-figure figcaption {
  font-family: var(--font-index);
  font-size: 0.74rem;
  color: #4a5560;
  margin-top: 0.5rem;
}

@media (min-width: 760px) {
  .page-about .about-timeline {
    padding-left: 0;
  }

  .page-about .about-timeline-rail {
    left: 50%;
    transform: translateX(-50%);
  }

  .page-about .about-milestone--left {
    width: 50%;
    padding-right: 40px;
    text-align: right;
  }

  .page-about .about-milestone--right {
    width: 50%;
    margin-left: 50%;
    padding-left: 40px;
    text-align: left;
  }

  .page-about .about-milestone--left::before {
    left: auto;
    right: -6px;
  }

  .page-about .about-milestone--right::before {
    left: -6px;
  }

  .page-about .about-milestone--left .about-milestone-body {
    text-align: left;
  }

  .page-about .about-timeline-figure {
    max-width: 320px;
    margin: 2rem auto;
  }
}

/* ===================== 03 CAPABILITIES ===================== */
.page-about .about-cap-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.page-about .about-cap-card {
  position: relative;
  background:
    linear-gradient(rgba(10, 29, 46, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 29, 46, 0.06) 1px, transparent 1px),
    var(--rice);
  background-size: 18px 18px, 18px 18px, auto;
  border: 1px solid var(--silver);
  padding: 1.25rem 1rem 1rem;
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease);
  box-sizing: border-box;
  min-height: 150px;
}

.page-about .about-cap-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 24px rgba(10, 29, 46, 0.12);
}

.page-about .about-cap-value {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1;
  color: var(--ink);
  letter-spacing: -0.03em;
}

.page-about .about-cap-value span {
  font-size: 0.5em;
  color: var(--mid-blue);
  margin-left: 0.1rem;
}

.page-about .about-cap-label {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink);
  margin-top: 0.75rem;
}

.page-about .about-cap-note {
  font-size: 0.78rem;
  color: #4a5560;
  margin-top: 0.3rem;
  line-height: 1.5;
}

.page-about .about-cap-card--neon {
  background:
    linear-gradient(rgba(192, 255, 0, 0.22) 1px, transparent 1px),
    linear-gradient(90deg, rgba(192, 255, 0, 0.22) 1px, transparent 1px),
    var(--ink);
  background-size: 18px 18px, 18px 18px, auto;
  border-color: var(--ink);
}

.page-about .about-cap-card--neon .about-cap-value {
  color: var(--neon);
}

.page-about .about-cap-card--neon .about-cap-value span {
  color: var(--neon);
}

.page-about .about-cap-card--neon .about-cap-label {
  color: var(--paper);
}

.page-about .about-cap-card--neon .about-cap-note {
  color: rgba(245, 240, 230, 0.75);
}

@media (min-width: 760px) {
  .page-about .about-cap-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }
}

/* ===================== 04 CERTIFICATIONS ===================== */
.page-about .about-cert-content {
  margin-top: 0.5rem;
}

.page-about .about-subgroup {
  font-family: var(--font-index);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--mid-blue);
  text-transform: uppercase;
  margin: 2rem 0 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.page-about .about-subgroup::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--silver);
}

.page-about .about-cert-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, 1fr);
}

.page-about .about-cert-card {
  background: var(--silver);
  clip-path: var(--chamfer);
  padding: 1px;
  box-sizing: border-box;
  transition: filter 0.25s var(--ease);
}

.page-about .about-cert-card:hover {
  filter: drop-shadow(0 8px 14px rgba(10, 29, 46, 0.18));
}

.page-about .about-cert-body {
  background: var(--rice);
  padding: 1.1rem 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  height: 100%;
  box-sizing: border-box;
}

.page-about .about-cert-code {
  font-family: var(--font-data);
  font-size: 0.68rem;
  color: var(--mid-blue);
  letter-spacing: 0.08em;
}

.page-about .about-cert-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.5;
}

.page-about .about-cert-desc {
  font-size: 0.75rem;
  line-height: 1.55;
  color: #4a5560;
}

.page-about .about-award-list {
  display: flex;
  flex-direction: column;
  border-top: 2px solid var(--ink);
}

.page-about .about-award-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 1rem;
  padding: 0.8rem 0;
  border-bottom: 1px dashed rgba(176, 183, 192, 0.65);
}

.page-about .about-award-year {
  font-family: var(--font-data);
  font-weight: 700;
  color: var(--ink);
}

.page-about .about-award-text {
  color: #3a4250;
  font-size: 0.9rem;
}

@media (min-width: 900px) {
  .page-about .about-cert-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
  }

  .page-about .about-award-item {
    grid-template-columns: 140px 1fr;
  }
}

/* ===================== 05 PARTNERSHIP ===================== */
.page-about .about-partner-grid {
  display: grid;
  gap: 1rem;
}

.page-about .about-partner-card {
  background: var(--rice);
  border: 1px solid var(--silver);
  border-top: 3px solid var(--ink);
  padding: 1.25rem 1rem;
  position: relative;
  box-sizing: border-box;
  transition: transform 0.25s var(--ease);
}

.page-about .about-partner-card:hover {
  transform: translateY(-4px);
}

.page-about .about-partner-num {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 2rem;
  color: var(--mid-blue);
  display: block;
}

.page-about .about-partner-card h3 {
  font-size: 1rem;
  margin: 0.5rem 0 0.35rem;
  color: var(--ink);
}

.page-about .about-partner-card p {
  font-size: 0.85rem;
  line-height: 1.7;
  color: #3a4250;
  margin: 0;
}

@media (min-width: 760px) {
  .page-about .about-partner-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }
}

/* ---- team block ---- */
.page-about .about-team-block {
  display: grid;
  gap: 1.5rem;
  margin-top: 2.5rem;
  background: var(--deep-ink);
  padding: 1.5rem;
}

.page-about .about-team-copy h3 {
  color: var(--paper);
  font-size: 1.1rem;
  font-weight: 900;
  margin: 0 0 0.75rem;
}

.page-about .about-team-copy p {
  color: rgba(245, 240, 230, 0.8);
  font-size: 0.9rem;
  line-height: 1.75;
  margin-bottom: 1rem;
}

.page-about .about-team-nums {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.page-about .about-team-num {
  display: inline-flex;
  flex-direction: column;
  background: rgba(192, 255, 0, 0.12);
  border: 1px solid rgba(192, 255, 0, 0.3);
  color: rgba(245, 240, 230, 0.8);
  font-size: 0.75rem;
  padding: 0.6rem 0.9rem;
  box-sizing: border-box;
}

.page-about .about-team-num strong {
  font-family: var(--font-data);
  font-size: 1.6rem;
  color: var(--neon);
  line-height: 1.2;
}

.page-about .about-team-figure {
  margin: 0;
}

.page-about .about-team-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 2 / 1;
}

.page-about .about-team-figure figcaption {
  font-family: var(--font-index);
  font-size: 0.72rem;
  color: rgba(176, 183, 192, 0.85);
  margin-top: 0.5rem;
}

@media (min-width: 900px) {
  .page-about .about-team-block {
    grid-template-columns: 1fr 1.2fr;
    gap: 2rem;
    align-items: center;
    padding: 2rem;
  }
}

/* ---- trust quote ---- */
.page-about .about-trust {
  margin: 2.5rem 0 0;
  padding: 1.25rem 1.25rem 1.25rem 1.75rem;
  border-left: 4px solid var(--neon);
  background: var(--rice);
  position: relative;
}

.page-about .about-trust p {
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--ink);
  margin: 0;
}

.page-about .about-trust::before {
  content: "// TRUST";
  position: absolute;
  top: -0.7rem;
  right: 1rem;
  font-family: var(--font-index);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  color: var(--mid-blue);
  background: var(--paper);
  padding: 0 0.4rem;
}

/* ===================== RELATED ===================== */
.page-about .about-related {
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 2px solid var(--ink);
}

.page-about .about-related .section-label {
  color: var(--mid-blue);
  margin-bottom: 1rem;
}

.page-about .about-related-grid {
  display: grid;
  gap: 0.5rem;
}

.page-about .about-related-item {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  background: var(--rice);
  border: 1px solid var(--silver);
  border-bottom: 3px solid var(--ink);
  padding: 1rem;
  text-decoration: none;
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
  box-sizing: border-box;
}

.page-about .about-related-item:hover {
  transform: translateY(-4px);
  border-color: var(--neon);
}

.page-about .about-related-idx {
  font-family: var(--font-data);
  font-size: 0.7rem;
  color: var(--mid-blue);
}

.page-about .about-related-name {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ink);
}

.page-about .about-related-go {
  font-size: 0.75rem;
  color: #3a4250;
  line-height: 1.5;
}

@media (min-width: 760px) {
  .page-about .about-related-grid {
    grid-template-columns: repeat(5, 1fr);
    gap: 0.75rem;
  }
}