.page-about {
  --about-card-top: 2px solid var(--steel);
  background: var(--space-blue);
  color: var(--cold-white);
  overflow-x: clip;
}

.page-about .about-top {
  padding-top: clamp(16px, 3vw, 28px);
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(18px, 3vw, 36px) 0 clamp(44px, 8vw, 100px);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(15, 53, 80, 0.9) 0%, rgba(6, 24, 38, 0) 62%),
    linear-gradient(180deg, rgba(6, 24, 38, 0) 0%, rgba(11, 14, 19, 0.55) 100%);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  width: min(46vw, 540px);
  height: 100%;
  background: repeating-linear-gradient(
    -12deg,
    transparent 0 36px,
    rgba(142, 235, 255, 0.06) 36px 37px
  );
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-strong) 18%, var(--line-strong) 82%, transparent);
}

.page-about .about-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 5vw, 56px);
}

.page-about .about-eyebrow {
  margin: 0;
  color: var(--neon);
  letter-spacing: 0.16em;
}

.page-about .about-hero-copy h1 {
  margin: 14px 0 0;
  max-width: 12em;
  font-size: clamp(2.1rem, 7.4vw, 4.2rem);
  font-weight: 200;
  line-height: 1.06;
  letter-spacing: 0.01em;
}

.page-about .about-hero-lede {
  margin: clamp(16px, 2.6vw, 24px) 0 0;
  max-width: 34em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: rgba(244, 247, 251, 0.78);
}

.page-about .about-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(18px, 3vw, 40px);
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-left: 14px;
  border-left: 2px solid var(--neon);
}

.page-about .about-stat:nth-child(2) {
  border-left-color: var(--orange);
}

.page-about .about-stat:nth-child(3) {
  border-left-color: var(--cyan);
}

.page-about .about-stat-num {
  font-size: clamp(1.5rem, 3.2vw, 2.1rem);
  font-weight: 300;
  letter-spacing: 0.04em;
  color: var(--cold-white);
}

.page-about .about-stat-label {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--haze);
}

.page-about .about-hero-media {
  margin: 0;
  aspect-ratio: 14 / 9;
  overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(150deg, var(--glass), var(--night) 72%);
}

.page-about .about-hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- Body grid ---------- */
.page-about .about-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 56px);
  padding-top: clamp(38px, 7vw, 88px);
  padding-bottom: clamp(56px, 9vw, 128px);
}

/* ---------- Index ---------- */
.page-about .about-index {
  display: grid;
  gap: 10px;
}

.page-about .about-index-title {
  margin: 0;
  color: var(--haze);
}

.page-about .about-index-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-about .about-index-list::-webkit-scrollbar {
  display: none;
}

.page-about .about-index-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  white-space: nowrap;
  font-size: 13px;
  color: var(--cold-white);
  text-decoration: none;
  border: 1px solid var(--line);
  background: rgba(15, 53, 80, 0.35);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-about .about-index-link .mono {
  font-size: 11px;
  color: var(--neon);
}

.page-about .about-index-link:hover,
.page-about .about-index-link:focus-visible {
  color: var(--neon);
  border-color: var(--neon);
  background: rgba(184, 255, 61, 0.08);
}

.page-about .about-scale {
  display: none;
}

/* ---------- Sections ---------- */
.page-about .about-section {
  padding-block: clamp(32px, 5vw, 64px);
  border-top: 1px solid var(--line);
}

.page-about .about-section:first-child {
  padding-top: 0;
  border-top: 0;
}

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

.page-about .about-section-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-about .about-sec-num {
  margin: 0;
  font-size: clamp(1.1rem, 2.4vw, 1.5rem);
  font-weight: 300;
  letter-spacing: 0.16em;
  color: var(--neon);
}

.page-about .about-sec-num::after {
  content: "";
  display: inline-block;
  vertical-align: middle;
  width: clamp(40px, 14vw, 130px);
  height: 1px;
  margin-left: 12px;
  background: linear-gradient(90deg, var(--neon), transparent);
}

.page-about .about-sec-title {
  margin: 0;
  font-size: clamp(1.45rem, 3.6vw, 2.35rem);
  font-weight: 300;
  line-height: 1.24;
  letter-spacing: 0.01em;
}

.page-about .about-section-lede {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--haze);
}

/* ---------- Prose & plate ---------- */
.page-about .about-prose {
  display: grid;
  gap: 16px;
  max-width: 62ch;
}

.page-about .about-prose p {
  margin: 0;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.85;
  color: rgba(244, 247, 251, 0.82);
}

.page-about .about-plate {
  margin: clamp(22px, 3vw, 32px) 0 0;
  max-width: 60ch;
  padding: clamp(18px, 3vw, 26px) clamp(18px, 3vw, 28px);
  border-left: 2px solid var(--orange);
  background: linear-gradient(120deg, rgba(15, 53, 80, 0.72), rgba(11, 14, 19, 0.92));
}

.page-about .about-plate .label {
  margin: 0 0 8px;
  color: var(--orange);
}

.page-about .about-plate-text {
  margin: 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.75;
  color: var(--cold-white);
}

/* ---------- Four content lines ---------- */
.page-about .about-lines {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2vw, 20px);
}

.page-about .about-line-card {
  position: relative;
  display: grid;
  gap: 10px;
  align-content: start;
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid var(--line-steel);
  background: linear-gradient(170deg, rgba(15, 53, 80, 0.55), rgba(11, 14, 19, 0.94) 72%);
}

.page-about .about-line-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 46px;
  height: 2px;
  background: var(--line-accent, var(--neon));
}

.page-about .about-line-card--neon {
  --line-accent: var(--neon);
}

.page-about .about-line-card--cyan {
  --line-accent: var(--cyan);
}

.page-about .about-line-card--orange {
  --line-accent: var(--orange);
}

.page-about .about-line-card--haze {
  --line-accent: var(--haze);
}

.page-about .about-line-index {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--line-accent, var(--neon));
}

.page-about .about-line-card h3 {
  margin: 0;
  font-size: clamp(1.08rem, 2vw, 1.3rem);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.page-about .about-line-card > p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(244, 247, 251, 0.74);
}

.page-about .about-line-card ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-line-card li {
  position: relative;
  padding-left: 14px;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(244, 247, 251, 0.86);
}

.page-about .about-line-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.64em;
  width: 5px;
  height: 5px;
  background: var(--line-accent, var(--neon));
}

.page-about .about-line-card .about-line-use {
  margin-top: 2px;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-size: 12.5px;
  line-height: 1.65;
  letter-spacing: 0.02em;
  color: var(--haze);
}

.page-about .about-lines-link {
  margin: clamp(16px, 2vw, 22px) 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--haze);
}

.page-about .about-lines-link a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(184, 255, 61, 0.45);
}

.page-about .about-lines-link a:hover,
.page-about .about-lines-link a:focus-visible {
  color: var(--cold-white);
  border-bottom-color: var(--cold-white);
}

/* ---------- Team ---------- */
.page-about .about-team-media {
  margin: 0 0 clamp(18px, 3vw, 28px);
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 1px solid var(--line-steel);
  background: linear-gradient(160deg, var(--glass), var(--night) 70%);
}

.page-about .about-team-media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-about .about-team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-about .about-team-card {
  padding: 20px;
  border: 1px solid var(--line);
  border-top: 2px solid var(--steel);
  background: rgba(11, 14, 19, 0.68);
}

.page-about .about-team-card:nth-child(1) {
  border-top-color: var(--neon);
}

.page-about .about-team-card:nth-child(2) {
  border-top-color: var(--orange);
}

.page-about .about-team-card:nth-child(3) {
  border-top-color: var(--cyan);
}

.page-about .about-team-num {
  margin: 0 0 8px;
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 200;
  letter-spacing: 0.06em;
  color: var(--cold-white);
}

.page-about .about-team-card h3 {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.page-about .about-team-card p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--haze);
}

.page-about .about-sub-title {
  margin: clamp(26px, 4vw, 38px) 0 12px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--cold-white);
}

.page-about .about-rhythm {
  display: grid;
  gap: 0;
  margin: 0;
}

.page-about .about-rhythm > div {
  display: grid;
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-rhythm dt {
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--orange);
}

.page-about .about-rhythm dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(244, 247, 251, 0.84);
}

/* ---------- Timeline ---------- */
.page-about .about-timeline {
  position: relative;
  display: grid;
  gap: 20px;
  margin: 0 0 clamp(20px, 3vw, 32px);
  padding: 0;
  list-style: none;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: linear-gradient(180deg, var(--neon), var(--orange) 55%, var(--glass));
}

.page-about .about-node {
  position: relative;
  padding-left: 34px;
  outline: none;
}

.page-about .about-node-mark {
  position: absolute;
  left: 1px;
  top: 6px;
  width: 15px;
  height: 15px;
  border: 2px solid var(--neon);
  background: var(--space-blue);
  transform: rotate(45deg);
  transition: background-color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-about .about-node:nth-child(2) .about-node-mark {
  border-color: var(--cyan);
}

.page-about .about-node:nth-child(3) .about-node-mark {
  border-color: var(--orange);
}

.page-about .about-node:nth-child(4) .about-node-mark {
  border-color: var(--haze);
}

.page-about .about-node-ver {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--neon);
}

.page-about .about-node:nth-child(2) .about-node-ver {
  color: var(--cyan);
}

.page-about .about-node:nth-child(3) .about-node-ver {
  color: var(--orange);
}

.page-about .about-node:nth-child(4) .about-node-ver {
  color: var(--cold-white);
}

.page-about .about-node-time {
  margin: 4px 0 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--haze);
}

.page-about .about-node-title {
  margin: 6px 0;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--cold-white);
}

.page-about .about-node-desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--haze);
  transition: color 0.25s var(--ease);
}

.page-about .about-node:hover .about-node-desc,
.page-about .about-node:focus-visible .about-node-desc,
.page-about .about-node:focus .about-node-desc {
  color: rgba(244, 247, 251, 0.94);
}

.page-about .about-node:hover .about-node-mark,
.page-about .about-node:focus-visible .about-node-mark {
  background: var(--neon);
}

.page-about .about-version-media {
  margin: 0;
  aspect-ratio: 2 / 1;
  overflow: hidden;
  border: 1px solid var(--line-steel);
  background: linear-gradient(150deg, var(--glass), var(--night) 70%);
}

.page-about .about-version-media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- Network ---------- */
.page-about .about-network {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(12px, 2vw, 18px);
  margin: 0;
  padding: 0 0 22px;
  list-style: none;
}

.page-about .about-network li {
  padding: 16px 14px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(15, 53, 80, 0.46), rgba(11, 14, 19, 0.9));
}

.page-about .about-network .mono {
  display: block;
  font-size: clamp(1.6rem, 3.4vw, 2.3rem);
  font-weight: 200;
  letter-spacing: 0.02em;
  color: var(--neon);
}

.page-about .about-network li:nth-child(2) .mono {
  color: var(--orange);
}

.page-about .about-network li:nth-child(3) .mono {
  color: var(--cyan);
}

.page-about .about-network li:nth-child(4) .mono {
  color: var(--cold-white);
}

.page-about .about-network p {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--haze);
}

.page-about .about-network-foot {
  margin: 0;
  max-width: 54ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(244, 247, 251, 0.78);
}

/* ---------- Promise ---------- */
.page-about .about-promise-panel {
  display: grid;
  gap: 14px;
  padding: clamp(24px, 4vw, 46px);
  border: 1px solid var(--line-steel);
  background:
    radial-gradient(95% 130% at 100% 0%, rgba(184, 255, 61, 0.14), transparent 62%),
    linear-gradient(135deg, var(--glass), rgba(11, 14, 19, 0.96) 68%);
}

.page-about .about-promise-panel .label {
  margin: 0;
  color: var(--orange);
}

.page-about .about-promise-panel h2 {
  margin: 0;
  font-size: clamp(1.4rem, 3vw, 2.1rem);
  font-weight: 300;
  line-height: 1.32;
}

.page-about .about-promise-text {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(244, 247, 251, 0.8);
}

.page-about .about-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}

/* ---------- Responsive ---------- */
@media (min-width: 640px) {
  .page-about .about-rhythm > div {
    grid-template-columns: 190px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }

  .page-about .about-team-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-about .about-lines {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .page-about .about-timeline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: clamp(14px, 2vw, 26px);
  }

  .page-about .about-timeline::before {
    left: 0;
    right: 0;
    top: 7px;
    bottom: auto;
    width: auto;
    height: 2px;
    background: linear-gradient(90deg, var(--neon), var(--orange) 58%, var(--glass));
  }

  .page-about .about-node {
    padding-left: 0;
    padding-top: 40px;
  }

  .page-about .about-node-mark {
    left: 0;
    top: 1px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: end;
  }

  .page-about .about-network {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    padding-bottom: 26px;
  }

  .page-about .about-network li:nth-child(even) {
    transform: translateY(22px);
  }
}

@media (min-width: 980px) {
  .page-about .about-body {
    grid-template-columns: minmax(0, 246px) minmax(0, 1fr);
    gap: clamp(40px, 6vw, 88px);
  }

  .page-about .about-index {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    align-self: start;
    gap: 18px;
  }

  .page-about .about-index-list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding: 0;
  }

  .page-about .about-index-link {
    padding: 9px 0;
    white-space: normal;
    border: 0;
    border-bottom: 1px solid var(--line);
    background: none;
    clip-path: none;
    line-height: 1.5;
  }

  .page-about .about-index-link:hover,
  .page-about .about-index-link:focus-visible {
    background: none;
    border-bottom-color: var(--neon);
  }

  .page-about .about-index-link .mono {
    flex: 0 0 26px;
  }

  .page-about .about-scale {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-top: 18px;
    border-top: 1px solid var(--line);
    font-size: 11px;
    letter-spacing: 0.14em;
    color: var(--haze);
  }

  .page-about .about-scale-bar {
    flex: 1 1 auto;
    height: 1px;
    background: repeating-linear-gradient(90deg, var(--steel) 0 4px, transparent 4px 10px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-index-link,
  .page-about .about-node-mark,
  .page-about .about-node-desc {
    transition: none;
  }
}
<<<END>>>