.page-about {
  --about-rail: 210px;
  --about-gap: clamp(28px, 4vw, 56px);
  --about-paper: rgba(237, 231, 220, 0.15);
  --about-paper-soft: rgba(237, 231, 220, 0.07);
  --about-panel: rgba(18, 48, 63, 0.5);
  position: relative;
  overflow-x: clip;
  padding-bottom: clamp(72px, 9vw, 128px);
  color: var(--text);
  background:
    radial-gradient(920px 560px at 8% -8%, rgba(242, 107, 58, 0.16), transparent 62%),
    radial-gradient(760px 480px at 98% 6%, rgba(63, 240, 192, 0.07), transparent 64%),
    linear-gradient(180deg, var(--ink-900) 0%, var(--ink-800) 52%, var(--ink-900) 100%);
}

.page-about::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(31, 76, 94, 0.32) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(31, 76, 94, 0.24) 1px, transparent 1px);
  background-size: 24px 24px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.6), transparent 46%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.6), transparent 46%);
}

.page-about .about-hero {
  position: relative;
  z-index: 1;
  padding-top: calc(var(--header-h) + clamp(28px, 5vw, 60px));
  padding-bottom: clamp(36px, 6vw, 72px);
}

.page-about .breadcrumb {
  margin-bottom: clamp(24px, 4vw, 40px);
  font-size: 13px;
  color: var(--text-muted);
}

.page-about .breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-about .breadcrumb a:hover {
  color: var(--coral-soft);
  border-bottom-color: var(--coral-soft);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  align-items: end;
}

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

.page-about .about-hero .eyebrow {
  margin: 0 0 18px;
  color: var(--amber);
  letter-spacing: 0.14em;
}

.page-about .about-hero h1 {
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-size: clamp(34px, 6.2vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 800;
  max-width: 12em;
}

.page-about .about-hero__intro {
  margin: 0 0 14px;
  max-width: 34em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--text);
}

.page-about .about-hero__intro--muted {
  color: var(--text-muted);
}

.page-about .about-hero__facts {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--about-paper);
}

.page-about .about-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px solid var(--about-paper-soft);
  font-size: 14px;
  color: var(--text-muted);
}

.page-about .about-hero__facts .mono {
  min-width: 84px;
  color: var(--amber);
  font-size: 12px;
  letter-spacing: 0.1em;
}

.page-about .about-hero__media {
  margin: 0;
  border: 1px solid var(--line);
}

.page-about .about-hero__media .media-frame__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

.page-about .about-hero__media .media-frame__tag {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

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

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

.page-about .about-rail__title {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--text-muted);
}

.page-about .about-rail__nav {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
}

.page-about .about-rail__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  flex: 0 0 auto;
  padding: 7px 11px;
  border: 1px solid var(--about-paper);
  color: var(--text-muted);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.24s var(--ease), border-color 0.24s var(--ease), background-color 0.24s var(--ease);
}

.page-about .about-rail__link .mono {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--violet);
}

.page-about .about-rail__link:hover,
.page-about .about-rail__link:focus-visible {
  color: var(--text);
  border-color: var(--coral);
  background: rgba(242, 107, 58, 0.1);
  outline: none;
}

.page-about .about-main {
  min-width: 0;
  display: grid;
  gap: clamp(22px, 3vw, 34px);
}

.page-about .about-chapter {
  position: relative;
  padding: clamp(22px, 3.4vw, 40px);
  border: 1px solid var(--about-paper);
  background: linear-gradient(180deg, var(--about-panel), rgba(10, 29, 43, 0.36));
}

.page-about .about-chapter::after {
  content: "";
  position: absolute;
  inset: 7px -7px -7px 7px;
  border: 1px solid var(--about-paper-soft);
  pointer-events: none;
}

.page-about .about-chapter__head {
  margin-bottom: clamp(20px, 3vw, 32px);
  padding-bottom: 18px;
  border-bottom: 1px solid var(--about-paper-soft);
}

.page-about .about-chapter__head .eyebrow {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--coral);
}

.page-about .about-chapter h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.2vw, 34px);
  line-height: 1.24;
  letter-spacing: -0.015em;
  font-weight: 800;
}

.page-about .about-chapter__lead {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-muted);
}

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

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 53px;
  top: 10px;
  bottom: 14px;
  width: 1px;
  background: linear-gradient(180deg, rgba(242, 107, 58, 0.65), rgba(31, 76, 94, 0.35));
}

.page-about .about-timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 22px;
  padding-bottom: 26px;
}

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

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: 49px;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 1px solid var(--coral);
  transition: background-color 0.24s var(--ease), transform 0.24s var(--ease);
}

.page-about .about-timeline__item:hover::before {
  background: var(--coral);
  transform: scale(1.25);
}

.page-about .about-timeline__year {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--amber);
  text-align: right;
  padding-top: 2px;
}

.page-about .about-timeline__body h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
}

.page-about .about-timeline__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-muted);
}

.page-about .about-team {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 40px);
  align-items: start;
}

.page-about .about-roles {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .about-roles__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 12px;
  align-items: baseline;
}

.page-about .about-roles__name {
  font-size: 15px;
  color: var(--text);
}

.page-about .about-roles__num {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.page-about .about-roles__bar {
  grid-column: 1 / -1;
  display: block;
  height: 3px;
  background: rgba(31, 76, 94, 0.55);
  overflow: hidden;
}

.page-about .about-roles__bar i {
  display: block;
  height: 100%;
  background: var(--coral);
}

.page-about .about-roles__item:nth-child(1) .about-roles__bar i {
  width: 47.8%;
}

.page-about .about-roles__item:nth-child(2) .about-roles__bar i {
  width: 30.4%;
  background: var(--violet);
}

.page-about .about-roles__item:nth-child(3) .about-roles__bar i {
  width: 21.8%;
  background: var(--mint);
}

.page-about .about-subhead {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}

.page-about .about-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-muted);
  padding-left: 0;
}

.page-about .about-steps .mono {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--violet);
  padding-top: 3px;
}

.page-about .about-team__media {
  margin: 0;
  border: 1px solid var(--line);
}

.page-about .about-team__media .media-frame__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.8);
}

.page-about .about-team__media .media-frame__tag {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.page-about .about-tabs {
  position: relative;
}

.page-about .about-tabs__radio {
  position: absolute;
  width: 0;
  height: 0;
  opacity: 0;
  pointer-events: none;
}

.page-about .about-tabs__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  border-bottom: 1px solid var(--about-paper-soft);
  margin-bottom: 22px;
}

.page-about .about-tabs__tab {
  padding: 9px 16px;
  margin-bottom: -1px;
  border-bottom: 2px solid transparent;
  font-size: 14px;
  color: var(--text-muted);
  cursor: pointer;
  user-select: none;
  transition: color 0.24s var(--ease), border-color 0.24s var(--ease), background-color 0.24s var(--ease);
}

.page-about .about-tabs__tab:hover {
  color: var(--text);
  background: rgba(242, 107, 58, 0.08);
}

.page-about .about-tabs__radio:nth-of-type(1):checked ~ .about-tabs__bar .about-tabs__tab:nth-child(1),
.page-about .about-tabs__radio:nth-of-type(2):checked ~ .about-tabs__bar .about-tabs__tab:nth-child(2),
.page-about .about-tabs__radio:nth-of-type(3):checked ~ .about-tabs__bar .about-tabs__tab:nth-child(3) {
  color: var(--text);
  border-bottom-color: var(--coral);
}

.page-about .about-tabs__panels {
  position: relative;
}

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

.page-about .about-tabs__radio:nth-of-type(1):checked ~ .about-tabs__panels > .about-tabs__panel:nth-child(1),
.page-about .about-tabs__radio:nth-of-type(2):checked ~ .about-tabs__panels > .about-tabs__panel:nth-child(2),
.page-about .about-tabs__radio:nth-of-type(3):checked ~ .about-tabs__panels > .about-tabs__panel:nth-child(3) {
  display: block;
  animation: about-fade 0.32s var(--ease) both;
}

@keyframes about-fade {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

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

.page-about .about-tagcard {
  padding: 18px 18px 20px;
  border: 1px solid var(--about-paper-soft);
  border-left: 3px solid var(--coral);
  background: rgba(5, 16, 26, 0.5);
  transition: border-color 0.24s var(--ease), background-color 0.24s var(--ease);
}

.page-about .about-tagcards--two .about-tagcard {
  border-left-color: var(--violet);
}

.page-about .about-tagcard:hover {
  background: rgba(18, 48, 63, 0.65);
  border-left-color: var(--coral-soft);
}

.page-about .about-tagcard__no {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-about .about-tagcard h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.42;
  color: var(--text);
}

.page-about .about-tagcard p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-muted);
}

.page-about .about-keys {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--about-paper-soft);
  border: 1px solid var(--about-paper-soft);
}

.page-about .about-keys li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px;
  background: rgba(5, 16, 26, 0.72);
  font-size: 14px;
  color: var(--text);
}

.page-about .about-keys .mono {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mint);
}

.page-about .about-partner-ways {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--about-paper-soft);
  border: 1px solid var(--about-paper-soft);
  margin-bottom: 20px;
}

.page-about .about-partner-way {
  padding: 18px;
  background: rgba(10, 29, 43, 0.72);
}

.page-about .about-partner-way h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--coral-soft);
}

.page-about .about-partner-way p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-muted);
}

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

.page-about .about-crosslink a {
  color: var(--coral-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 145, 102, 0.45);
  transition: color 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-about .about-crosslink a:hover {
  color: var(--text);
  border-bottom-color: var(--text);
}

.page-about .about-haikou {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
  align-items: center;
}

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

.page-about .about-haikou__text p:last-child {
  margin-bottom: 0;
}

.page-about .about-haikou__media {
  margin: 0;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-about .about-haikou__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.42;
  filter: saturate(0.55) contrast(1.05);
}

.page-about .about-haikou__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(5, 16, 26, 0.2), rgba(5, 16, 26, 0.82));
}

.page-about .about-scale-wrap {
  overflow-x: auto;
  padding-bottom: 6px;
  margin-bottom: 20px;
}

.page-about .about-scale {
  display: block;
  width: 100%;
  min-width: 620px;
  height: auto;
}

.page-about .about-scale__axis {
  stroke: rgba(31, 76, 94, 0.95);
  stroke-width: 1;
}

.page-about .about-scale__node line {
  stroke: rgba(167, 186, 198, 0.45);
  stroke-width: 1;
}

.page-about .about-scale__node circle {
  fill: var(--ink-900);
  stroke: var(--coral);
  stroke-width: 1.5;
  transition: fill 0.24s var(--ease);
}

.page-about .about-scale__node:hover circle,
.page-about .about-scale__node:last-child circle {
  fill: var(--coral);
}

.page-about .about-scale__ver {
  fill: var(--text);
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.06em;
}

.page-about .about-scale__year {
  fill: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 13px;
}

.page-about .about-milestone-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-milestone-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--text-muted);
}

.page-about .about-milestone-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 1px;
  background: var(--mint);
}

.page-about .about-next {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  padding: clamp(22px, 3.4vw, 36px);
  border: 1px solid var(--about-paper);
  background:
    linear-gradient(120deg, rgba(242, 107, 58, 0.16), transparent 62%),
    rgba(10, 29, 43, 0.7);
  align-items: center;
}

.page-about .about-next h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 28px);
  line-height: 1.3;
  font-weight: 800;
}

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

.page-about .about-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-top {
  position: fixed;
  right: clamp(14px, 3vw, 32px);
  bottom: clamp(14px, 3vw, 32px);
  z-index: 30;
  padding: 9px 14px;
  border: 1px solid var(--about-paper);
  background: rgba(5, 16, 26, 0.86);
  color: var(--text-muted);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: color 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-about .about-top:hover,
.page-about .about-top:focus-visible {
  color: var(--coral-soft);
  border-color: var(--coral);
  outline: none;
}

@media (min-width: 720px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.78fr);
  }

  .page-about .about-hero__media {
    margin-right: calc(var(--gutter) * -1);
  }

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

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

  .page-about .about-tagcard:nth-child(2) {
    margin-top: 18px;
  }

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

  .page-about .about-next {
    grid-template-columns: minmax(0, 1.4fr) auto;
  }
}

@media (min-width: 960px) {
  .page-about .about-body {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
  }

  .page-about .about-rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-about .about-rail__nav {
    flex-direction: column;
    overflow: visible;
    gap: 2px;
    padding-bottom: 0;
    border-left: 1px solid var(--about-paper);
  }

  .page-about .about-rail__link {
    border: 0;
    border-left: 2px solid transparent;
    margin-left: -1px;
    padding: 8px 12px;
    background: transparent;
  }

  .page-about .about-rail__link:hover,
  .page-about .about-rail__link:focus-visible {
    border-left-color: var(--coral);
    background: rgba(242, 107, 58, 0.08);
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
  }

  .page-about .about-haikou {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-tabs__radio:nth-of-type(1):checked ~ .about-tabs__panels > .about-tabs__panel:nth-child(1),
  .page-about .about-tabs__radio:nth-of-type(2):checked ~ .about-tabs__panels > .about-tabs__panel:nth-child(2),
  .page-about .about-tabs__radio:nth-of-type(3):checked ~ .about-tabs__panels > .about-tabs__panel:nth-child(3) {
    animation: none;
  }

  .page-about .about-timeline__item:hover::before {
    transform: none;
  }
}
<<<PAGE_CSS_END>>>