.page-about {
  --about-line: 2px solid var(--ink-700);
  --about-radius: 0px;
  background: var(--ink-900);
  color: var(--text);
  overflow-x: hidden;
}

.page-about .section {
  margin-block: 0;
  padding-block: clamp(44px, 7vw, 88px);
}

.page-about .section--tight {
  padding-block: clamp(30px, 4vw, 52px);
}

.page-about .crumbs {
  margin-bottom: clamp(18px, 3vw, 30px);
}

/* ---------- 首屏档案声明 ---------- */
.page-about .about-intro {
  padding-bottom: clamp(30px, 5vw, 54px);
  border-bottom: var(--about-line);
}

.page-about .about-intro__kicker {
  margin: 0 0 clamp(14px, 2vw, 22px);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold-500);
}

.page-about .about-intro h1 {
  margin: 0 0 clamp(16px, 2.4vw, 26px);
  max-width: 18ch;
  font-size: clamp(30px, 6.4vw, 64px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.01em;
}

.page-about .about-intro__lede {
  max-width: 66ch;
  margin: 0;
  font-size: clamp(15px, 1.7vw, 18px);
  line-height: 1.85;
  color: var(--text-dim);
}

.page-about .about-intro__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: clamp(26px, 4vw, 42px);
}

.page-about .about-intro__stats .stat {
  border-left: 3px solid var(--gold-500);
  padding-left: 12px;
}

.page-about .about-intro__stats .stat__value {
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.1;
  color: var(--gold-300);
}

.page-about .about-intro__stats .stat__key {
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-dim);
}

/* ---------- 标签页通用（页面作用域内） ---------- */
.page-about .tabs__list {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  border-bottom: var(--about-line);
  margin-bottom: clamp(20px, 3vw, 34px);
  scrollbar-width: none;
}

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

.page-about .tabs__tab {
  flex: 0 0 auto;
  padding: 12px 16px;
  background: transparent;
  border: 0;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  font-family: var(--font-mono);
  font-size: clamp(14px, 2vw, 20px);
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--text-dim);
  cursor: pointer;
  transition: color .25s var(--ease), border-color .25s var(--ease);
}

.page-about .tabs__tab:hover,
.page-about .tabs__tab:focus-visible {
  color: var(--gold-300);
}

.page-about .tabs__tab[aria-selected="true"] {
  color: var(--gold-300);
  border-bottom-color: var(--gold-500);
}

.page-about .tabs__panel {
  padding-top: clamp(4px, 1vw, 10px);
}

/* ---------- 年表 ---------- */
.page-about .era {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(10px, 2vw, 26px);
  padding: clamp(18px, 3vw, 32px);
  border: var(--about-line);
  box-shadow: var(--hard);
  background: var(--ink-800);
}

.page-about .era__year {
  margin: 0;
  font-size: clamp(50px, 12vw, 104px);
  font-weight: 700;
  line-height: .88;
  letter-spacing: -0.02em;
  color: transparent;
  -webkit-text-stroke: 2px var(--gold-500);
}

.page-about .era__title {
  margin: 0 0 12px;
  font-size: clamp(19px, 2.6vw, 27px);
  font-weight: 800;
  line-height: 1.3;
}

.page-about .era__text {
  max-width: 62ch;
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-dim);
}

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

.page-about .era__facts li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-dim);
}

.page-about .era__facts .dot {
  margin-top: 7px;
  flex: 0 0 auto;
}

/* ---------- 团队 ---------- */
.page-about .team-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 46px);
  align-items: start;
}

.page-about .team-copy p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-dim);
}

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

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

.page-about .media {
  position: relative;
  overflow: hidden;
  border: var(--about-line);
  box-shadow: var(--hard);
  background: var(--ink-950);
}

.page-about .media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.9) contrast(1.05);
}

.page-about .media--tall img {
  aspect-ratio: 14 / 9;
}

.page-about .media__tag {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 6px 12px;
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-950);
  background: var(--gold-500);
}

.page-about .figure__cap {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-dim);
}

.page-about .team-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: clamp(26px, 4vw, 44px);
}

.page-about .team-split__item {
  padding: clamp(18px, 3vw, 26px);
  border: var(--about-line);
  background: var(--ink-800);
}

.page-about .team-split__num {
  margin: 0;
  font-size: clamp(30px, 5vw, 46px);
  font-weight: 700;
  line-height: 1;
  color: var(--gold-300);
}

.page-about .team-split__key {
  margin: 8px 0 10px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.page-about .team-split__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

/* ---------- 覆盖范围 ---------- */
.page-about .cover-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 42px);
  align-items: start;
}

.page-about .cover-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--ink-700);
  border: var(--about-line);
  box-shadow: var(--hard);
}

.page-about .cover-cell {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: clamp(14px, 2.4vw, 22px);
  background: var(--ink-800);
}

.page-about .cover-cell__num {
  font-size: clamp(24px, 3.6vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--gold-300);
}

.page-about .cover-cell__key {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
}

.page-about .cover-cell__note {
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-dim);
}

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

/* ---------- 方法标签页 ---------- */
.page-about .method {
  padding: clamp(18px, 3vw, 34px);
  border-left: 4px solid var(--gold-500);
  background: linear-gradient(90deg, rgba(216, 161, 58, .1), rgba(11, 18, 32, 0) 62%);
}

.page-about .method__title {
  margin: 0 0 14px;
  max-width: 30ch;
  font-size: clamp(19px, 2.6vw, 28px);
  font-weight: 800;
  line-height: 1.32;
}

.page-about .method__text {
  max-width: 62ch;
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-dim);
}

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

.page-about .method__points li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
}

.page-about .method__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  background: var(--jade);
}

/* ---------- 荣誉与合作 ---------- */
.page-about .honour-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 46px);
  align-items: start;
}

.page-about .honour {
  display: grid;
  grid-template-columns: minmax(0, auto) minmax(0, 1fr);
  gap: clamp(14px, 2.5vw, 28px);
  align-items: baseline;
  padding: clamp(16px, 2.6vw, 24px) 0;
  border-top: var(--about-line);
}

.page-about .honour:last-of-type {
  border-bottom: var(--about-line);
}

.page-about .honour__year {
  margin: 0;
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 700;
  color: var(--gold-500);
}

.page-about .honour__name {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}

.page-about .honour__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-about .collab {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-about .collab__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px;
  border: var(--about-line);
  background: var(--ink-800);
}

.page-about .collab__num {
  font-size: clamp(24px, 3.6vw, 32px);
  font-weight: 700;
  line-height: 1;
  color: var(--jade);
}

.page-about .collab__key {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-dim);
}

.page-about .honour-tail {
  margin: clamp(16px, 2.6vw, 24px) 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}

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

/* ---------- 路线图 ---------- */
.page-about .road {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-about .road__item {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(18px, 3vw, 28px);
  border: var(--about-line);
  box-shadow: var(--hard);
  background: var(--ink-800);
  transition: transform .3s var(--ease);
}

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

.page-about .road__item .tag {
  align-self: flex-start;
}

.page-about .road__title {
  margin: 0;
  font-size: clamp(17px, 2.2vw, 21px);
  font-weight: 800;
  line-height: 1.35;
}

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

.page-about .road-tail {
  margin: clamp(22px, 3.4vw, 34px) 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-about .road-tail a {
  color: var(--gold-300);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 行动区 ---------- */
.page-about .cta-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
  align-items: center;
  padding: clamp(24px, 4vw, 44px);
  border: var(--about-line);
  box-shadow: var(--hard);
  background: linear-gradient(135deg, var(--ink-800), var(--ink-950));
}

.page-about .cta-band__title {
  margin: 0 0 12px;
  font-size: clamp(21px, 3.2vw, 32px);
  font-weight: 900;
  line-height: 1.25;
}

.page-about .cta-band__text {
  max-width: 56ch;
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}

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

/* ---------- 显现动效 ---------- */
.page-about [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}

.page-about [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-about [data-reveal],
  .page-about .road__item {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 700px) {
  .page-about .about-intro__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .team-split {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .road {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 940px) {
  .page-about .era {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 2.1fr);
    align-items: start;
  }

  .page-about .team-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  }

  .page-about .cover-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    align-items: center;
  }

  .page-about .honour-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  }

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

  .page-about .cta-band {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, auto);
  }

  .page-about .cta-band__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1180px) {
  .page-about .era {
    padding: clamp(28px, 3vw, 44px);
  }
}
<<<END>>>