.page-about {
  --about-rail: 208px;
  --about-gap: clamp(18px, 3vw, 30px);
  --about-soft-line: rgba(62, 90, 102, 0.55);
  position: relative;
  padding-bottom: clamp(30px, 6vw, 70px);
  background:
    radial-gradient(760px 420px at 88% -6%, rgba(53, 242, 196, 0.10), transparent 64%),
    radial-gradient(620px 380px at 2% 18%, rgba(255, 177, 59, 0.07), transparent 62%);
}

.page-about .breadcrumb {
  padding-block: 14px 0;
}

.page-about .about-hero {
  padding-block: clamp(18px, 3vw, 30px) clamp(26px, 5vw, 52px);
}

.page-about .about-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--about-gap);
}

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

.page-about .about-h1 {
  margin: 0;
  font-size: clamp(30px, 5.4vw, 56px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--text);
}

.page-about .about-lede {
  margin: 18px 0 0;
  max-width: 64ch;
  color: var(--text-soft);
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.85;
}

.page-about .about-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-about .about-hero-aside {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(165deg, rgba(18, 29, 34, 0.96), rgba(7, 11, 14, 0.96));
  padding: 20px;
  box-shadow:
    inset 0 1px 0 rgba(234, 247, 243, 0.05),
    0 18px 40px -30px rgba(0, 0, 0, 0.9);
}

.page-about .about-aside-label {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.page-about .about-hero-aside .version-badge {
  display: inline-block;
  margin: 0 0 16px;
  font-size: 20px;
  letter-spacing: 0.06em;
}

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

.page-about .about-facts > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 10px 0;
  border-top: 1px solid var(--about-soft-line);
}

.page-about .about-facts dt {
  color: var(--text-muted);
  font-size: 13px;
}

.page-about .about-facts dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--mint);
}

.page-about .about-facts dd.is-amber {
  color: var(--amber);
}

.page-about .about-section {
  padding-block: clamp(14px, 2.4vw, 22px);
}

.page-about .about-panel {
  padding: clamp(18px, 3vw, 32px);
}

.page-about .about-head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 22px;
}

.page-about .about-index {
  flex: none;
  margin-top: 3px;
  padding: 3px 7px;
  border: 1px solid var(--line);
  border-radius: 5px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mint);
}

.page-about .about-h2 {
  margin: 0;
  font-size: clamp(21px, 2.6vw, 30px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  font-weight: 700;
  color: var(--text);
}

.page-about .about-sub {
  margin: 6px 0 0;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
}

.page-about .about-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--about-gap);
  align-items: start;
}

.page-about .about-body-text {
  margin: 0 0 14px;
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.85;
}

.page-about .about-services {
  margin: 22px 0 0;
  display: grid;
  gap: 14px;
}

.page-about .about-services > div {
  border-left: 2px solid var(--line-strong);
  padding: 2px 0 2px 14px;
  transition: border-color 0.2s ease;
}

.page-about .about-services > div:hover {
  border-color: var(--mint);
}

.page-about .about-services dt {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.page-about .about-services dd {
  margin: 5px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-muted);
}

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

.page-about .about-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.page-about .about-scenes {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-about .about-scene {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: linear-gradient(170deg, rgba(18, 29, 34, 0.94), rgba(12, 20, 24, 0.94));
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.page-about .about-scene:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
}

.page-about .about-scene-tag {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-about .about-scene h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--text);
}

.page-about .about-scene p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--text-muted);
}

.page-about .about-scene .link-more {
  margin-top: auto;
  align-self: flex-start;
}

.page-about .about-quote {
  margin: clamp(22px, 4vw, 42px) 0;
  padding: 18px 20px;
  border-left: 2px solid var(--mint);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: linear-gradient(90deg, rgba(53, 242, 196, 0.09), rgba(53, 242, 196, 0) 72%);
}

.page-about .about-quote > p {
  margin: 0;
  font-size: clamp(16px, 1.8vw, 20px);
  line-height: 1.7;
  font-weight: 600;
  letter-spacing: -0.005em;
  color: var(--text);
}

.page-about .about-quote details {
  margin-top: 10px;
}

.page-about .about-quote summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mint);
}

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

.page-about .about-quote summary::before {
  content: "+";
  font-size: 14px;
}

.page-about .about-quote details[open] summary::before {
  content: "−";
}

.page-about .about-quote details p {
  margin: 10px 0 0;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.8;
  color: var(--text-muted);
}

.page-about .about-timeline {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--about-gap);
}

.page-about .about-rail {
  display: flex;
  flex-direction: column;
  gap: 2px;
  align-self: start;
  border-left: 1px solid var(--about-soft-line);
}

.page-about .about-rail a {
  padding: 9px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-decoration: none;
  color: var(--text-muted);
  border-left: 2px solid transparent;
  margin-left: -1px;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.page-about .about-rail a:hover,
.page-about .about-rail a:focus-visible {
  color: var(--mint-bright);
  border-color: var(--mint);
  background: rgba(53, 242, 196, 0.07);
}

.page-about .about-stage {
  padding: 18px 0 22px;
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-h) + 90px);
}

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

.page-about .stage-meta {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-about .about-stage h3 {
  margin: 8px 0 0;
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 600;
  color: var(--text);
}

.page-about .about-stage p:not(.stage-meta) {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-muted);
}

.page-about .about-stages .about-figure {
  margin-top: 24px;
}

.page-about .about-team {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--about-gap);
  align-items: start;
}

.page-about .about-roles {
  display: grid;
  gap: 12px;
}

.page-about .about-role {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel-raised);
  transition: border-color 0.2s ease;
}

.page-about .about-role:hover {
  border-color: var(--line-strong);
}

.page-about .role-tag {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mint);
}

.page-about .about-role h3 {
  margin: 6px 0 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.page-about .about-role p:not(.role-tag) {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--text-muted);
}

.page-about .about-team-note {
  margin: 2px 0 0;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: rgba(53, 242, 196, 0.06);
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-soft);
}

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

.page-about .about-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--about-soft-line);
}

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

.page-about .step-no {
  font-size: 22px;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--mint);
}

.page-about .about-steps h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.page-about .about-steps p {
  margin: 6px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-muted);
}

.page-about .note {
  margin-top: 20px;
  font-size: 14px;
  line-height: 1.8;
}

.page-about .about-next {
  display: grid;
  gap: var(--about-gap);
}

.page-about .about-links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-about .about-linkcard {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: linear-gradient(160deg, rgba(18, 29, 34, 0.94), rgba(12, 20, 24, 0.94));
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.page-about .about-linkcard:hover,
.page-about .about-linkcard:focus-visible {
  border-color: var(--mint);
  transform: translateY(-2px);
}

.page-about .about-linkcard span {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-about .about-linkcard strong {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.page-about .about-linkcard em {
  font-style: normal;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text-muted);
}

.page-about .about-contact {
  display: grid;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(150deg, rgba(53, 242, 196, 0.07), rgba(18, 29, 34, 0.94) 58%);
}

.page-about .about-contact h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
}

.page-about .about-contact p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-muted);
}

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

.page-about .about-contact-list > div {
  display: grid;
  gap: 5px;
  padding: 10px 0;
  border-top: 1px solid var(--about-soft-line);
}

.page-about .about-contact-list > div:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-about .about-contact-list dt {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.page-about .about-contact-list dd {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text);
  word-break: break-word;
}

.page-about .about-contact-list a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
}

.page-about .about-contact-list a:hover {
  color: var(--mint-bright);
  border-color: var(--mint);
}

.page-about .copy-btn {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  padding: 5px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(53, 242, 196, 0.08);
  color: var(--mint);
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-about .copy-btn:hover {
  color: var(--mint-bright);
  border-color: var(--mint);
}

.page-about a:focus-visible,
.page-about summary:focus-visible,
.page-about button:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 3px;
  border-radius: 4px;
}

@media (min-width: 780px) {
  .page-about .about-scenes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-scene:nth-child(1),
  .page-about .about-scene:nth-child(4) {
    grid-column: span 2;
  }

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

@media (min-width: 900px) {
  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.75fr);
    align-items: start;
  }

  .page-about .about-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-about .about-timeline {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
  }

  .page-about .about-rail {
    position: sticky;
    top: calc(var(--header-h) + 18px);
  }
}

@media (min-width: 960px) {
  .page-about .about-team {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-about .about-contact {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about * {
    transition: none !important;
    animation: none !important;
  }

  .page-about .about-scene:hover,
  .page-about .about-linkcard:hover,
  .page-about .about-linkcard:focus-visible {
    transform: none;
  }
}
<<<END>>>