.page-about {
  --about-rail-w: clamp(260px, 26vw, 340px);
  color: var(--ivory);
  background:
    radial-gradient(110% 70% at 88% 0%, rgba(200, 162, 74, .12), transparent 62%),
    radial-gradient(80% 60% at 0% 100%, rgba(43, 122, 116, .08), transparent 70%),
    var(--ink);
}

.page-about .about-wrap {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-about .breadcrumb {
  padding-block: clamp(14px, 2vw, 24px) 0;
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(18px, 3vw, 28px) clamp(44px, 7vw, 88px);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: 8%;
  right: -14%;
  width: 58%;
  height: 78%;
  background: linear-gradient(140deg, rgba(200, 162, 74, .18), rgba(181, 68, 50, .10) 46%, transparent 78%);
  clip-path: polygon(22% 0, 100% 8%, 100% 92%, 8% 100%);
  pointer-events: none;
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 56px);
  align-items: start;
}

.page-about .about-hero h1 {
  margin: var(--sp-2) 0 0;
  max-width: 15em;
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(1.95rem, 5.4vw, 3.55rem);
  line-height: 1.18;
  letter-spacing: -.01em;
}

.page-about .about-hero__intro {
  margin: var(--sp-3) 0 0;
  max-width: 34em;
  font-size: clamp(.96rem, 1.5vw, 1.05rem);
  line-height: 1.85;
  color: var(--ivory-80);
}

.page-about .about-hero__intro + .about-hero__intro {
  margin-top: var(--sp-2);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-4);
}

.page-about .about-hero__side {
  display: grid;
  gap: var(--sp-3);
}

.page-about .about-hero__side .media-frame {
  border-radius: var(--radius);
}

.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-stats__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px 16px;
  background: var(--stone);
}

.page-about .about-stats__label {
  font-family: var(--sans);
  font-size: .7rem;
  letter-spacing: .16em;
  color: var(--mist);
}

.page-about .about-stats__value {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 4px;
  font-family: var(--sans);
  font-size: .82rem;
  color: var(--mist);
}

.page-about .about-stats__num {
  font-family: var(--mono);
  font-size: clamp(1.4rem, 3.4vw, 1.95rem);
  line-height: 1;
  color: var(--gold-bright);
  letter-spacing: -.02em;
}

.page-about .about-stats__hint {
  margin: 0;
  font-size: .76rem;
  line-height: 1.6;
  color: var(--ivory-60);
}

@media (min-width: 940px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: clamp(36px, 5vw, 72px);
  }
}

@media (max-width: 939px) {
  .page-about .about-hero::before {
    top: auto;
    bottom: 2%;
    right: -34%;
    width: 88%;
    height: 40%;
    opacity: .65;
  }
}

/* ---------- 沿革与时间线 ---------- */

.page-about .about-story {
  padding-block: clamp(40px, 7vw, 96px);
  border-top: 1px solid var(--line-soft);
}

.page-about .about-story__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 5vw, 64px);
}

.page-about .about-story h2,
.page-about .about-scenes h2,
.page-about .about-team h2,
.page-about .about-content h2,
.page-about .about-partners h2,
.page-about .about-cta h2 {
  margin: var(--sp-2) 0 var(--sp-3);
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.4vw, 2.25rem);
  line-height: 1.32;
  letter-spacing: -.005em;
}

.page-about .about-story__body > p {
  margin: 0 0 var(--sp-3);
  max-width: 36em;
  font-size: .98rem;
  line-height: 1.9;
  color: var(--ivory-80);
}

.page-about .about-quote {
  position: relative;
  margin: var(--sp-4) 0 0;
  padding: var(--sp-3) var(--sp-3) var(--sp-3) var(--sp-4);
  border-left: 2px solid var(--gold);
  background: linear-gradient(90deg, rgba(200, 162, 74, .12), transparent 88%);
}

.page-about .about-quote p {
  margin: 0;
  max-width: 24em;
  font-family: var(--serif);
  font-size: clamp(1.1rem, 2.4vw, 1.45rem);
  line-height: 1.7;
  color: var(--gold-bright);
}

.page-about .about-quote__note {
  margin: var(--sp-2) 0 0;
  max-width: 30em;
  font-size: .84rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-about .about-story__rail {
  padding: var(--sp-3);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(23, 26, 31, .92), rgba(13, 15, 18, .55));
}

.page-about .about-rail__title {
  margin: 0 0 var(--sp-3);
  font-family: var(--sans);
  font-size: .74rem;
  font-weight: 500;
  letter-spacing: .2em;
  color: var(--gold);
}

.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 var(--sp-3);
  border-left: 1px solid var(--line);
}

.page-about .about-timeline__item {
  position: relative;
  padding-bottom: var(--sp-4);
}

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

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--sp-3) - 4px);
  top: .5em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(200, 162, 74, .12);
}

.page-about .about-timeline__idx {
  display: block;
  margin-bottom: 5px;
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--mist);
}

.page-about .about-timeline__head {
  margin: 0 0 6px;
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ivory);
}

.page-about .about-timeline__item p {
  margin: 0;
  font-size: .85rem;
  line-height: 1.78;
  color: var(--ivory-60);
}

@media (min-width: 1000px) {
  .page-about .about-story__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr);
  }

  .page-about .about-story__rail {
    position: sticky;
    top: 112px;
    align-self: start;
  }
}

/* ---------- 主题索引与筛选 ---------- */

.page-about .about-index {
  padding-block: clamp(32px, 5vw, 64px);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-index__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-2);
  margin-bottom: var(--sp-3);
}

.page-about .about-index__head h2 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(1.4rem, 3vw, 2rem);
  line-height: 1.35;
}

.page-about .about-index__head p {
  margin: 0;
  max-width: 40em;
  font-size: .92rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-2);
  margin-bottom: var(--sp-4);
  padding-block: var(--sp-2);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-about .filter-btn {
  padding: 8px 16px;
  font-family: var(--sans);
  font-size: .8rem;
  letter-spacing: .14em;
  color: var(--ivory-60);
  background: transparent;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-about .filter-btn:hover,
.page-about .filter-btn:focus-visible {
  color: var(--gold-bright);
  border-color: var(--gold);
}

.page-about .filter-btn[aria-pressed="true"] {
  color: var(--ink);
  background: var(--gold);
  border-color: var(--gold);
}

.page-about .filter-status {
  margin: 0 0 0 auto;
  font-family: var(--mono);
  font-size: .76rem;
  letter-spacing: .1em;
  color: var(--mist);
}

.page-about .about-cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-2);
}

.page-about .about-card {
  position: relative;
  padding: var(--sp-3);
  background: var(--stone);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-about .about-card:nth-child(3n+2) {
  border-left-color: var(--peacock);
}

.page-about .about-card:nth-child(3n+3) {
  border-left-color: var(--cinnabar);
}

.page-about .about-card:hover {
  transform: translateY(-2px);
  border-color: var(--line);
  background: linear-gradient(160deg, rgba(200, 162, 74, .07), rgba(23, 26, 31, 1) 60%);
}

.page-about .about-card__tag {
  display: inline-block;
  padding: 3px 9px;
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .18em;
  color: var(--gold);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-about .about-card__title {
  margin: var(--sp-2) 0 8px;
  font-family: var(--serif);
  font-size: 1.06rem;
  font-weight: 700;
  line-height: 1.42;
  color: var(--ivory);
}

.page-about .about-card p {
  margin: 0;
  font-size: .87rem;
  line-height: 1.8;
  color: var(--ivory-60);
}

@media (min-width: 680px) {
  .page-about .about-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-about .about-index__head {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1fr);
    align-items: end;
    gap: var(--sp-4);
  }
}

@media (min-width: 1040px) {
  .page-about .about-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 场景横带 ---------- */

.page-about .about-scenes {
  position: relative;
  padding-block: clamp(40px, 6vw, 80px);
  background: linear-gradient(115deg, rgba(94, 78, 44, .30), rgba(43, 122, 116, .12) 52%, rgba(13, 15, 18, 0) 88%);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-scenes .media-frame {
  margin-block: var(--sp-3) var(--sp-4);
}

.page-about .about-scenes__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
}

.page-about .about-scenes__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px var(--sp-3);
  padding-block: var(--sp-3);
  border-top: 1px solid var(--line-soft);
}

.page-about .about-scenes__idx {
  padding-top: .22em;
  font-size: .76rem;
  letter-spacing: .12em;
  color: var(--gold);
}

.page-about .about-scenes__item h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ivory);
}

.page-about .about-scenes__item p {
  grid-column: 2;
  margin: 0;
  max-width: 40em;
  font-size: .88rem;
  line-height: 1.82;
  color: var(--ivory-60);
}

@media (min-width: 900px) {
  .page-about .about-scenes__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: var(--sp-5);
  }
}

/* ---------- 团队与流程 ---------- */

.page-about .about-team {
  padding-block: clamp(40px, 7vw, 96px);
}

.page-about .about-team__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 56px);
}

.page-about .about-team__media .media-frame {
  border-radius: var(--radius);
}

.page-about .about-team__intro {
  margin: 0 0 var(--sp-3);
  max-width: 36em;
  font-size: .95rem;
  line-height: 1.9;
  color: var(--ivory-80);
}

.page-about .about-roles {
  list-style: none;
  margin: var(--sp-3) 0 var(--sp-4);
  padding: 0;
  display: grid;
  gap: 0;
}

.page-about .about-roles li {
  display: grid;
  grid-template-columns: 3.2em minmax(0, 1fr);
  gap: var(--sp-2);
  align-items: baseline;
  padding-block: var(--sp-2);
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-roles li:first-child {
  border-top: 1px solid var(--line-soft);
}

.page-about .about-roles__num {
  font-family: var(--mono);
  font-size: 1.2rem;
  line-height: 1.2;
  color: var(--gold-bright);
}

.page-about .about-roles__text {
  font-size: .89rem;
  line-height: 1.8;
  color: var(--ivory-80);
}

.page-about .about-team__sub {
  margin: var(--sp-4) 0 var(--sp-3);
  font-family: var(--sans);
  font-size: .74rem;
  font-weight: 500;
  letter-spacing: .2em;
  color: var(--gold);
}

.page-about .about-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-flow li {
  padding: var(--sp-2) var(--sp-3) var(--sp-3);
  background: var(--stone);
}

.page-about .about-flow__idx {
  display: block;
  margin-bottom: 6px;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-about .about-flow h4 {
  margin: 0 0 6px;
  font-family: var(--serif);
  font-size: .96rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ivory);
}

.page-about .about-flow p {
  margin: 0;
  font-size: .82rem;
  line-height: 1.75;
  color: var(--ivory-60);
}

@media (min-width: 700px) {
  .page-about .about-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-about .about-team__grid {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-about .about-flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 内容中心 ---------- */

.page-about .about-content {
  padding-block: clamp(36px, 6vw, 80px);
}

.page-about .about-content__panel {
  padding: clamp(24px, 4vw, 48px);
  border: 1px solid var(--line);
  border-left: 4px solid var(--cinnabar);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(94, 78, 44, .32), rgba(23, 26, 31, .94) 55%);
}

.page-about .about-content__lead {
  margin: 0;
  max-width: 38em;
  font-size: .94rem;
  line-height: 1.9;
  color: var(--ivory-80);
}

.page-about .about-content__list {
  list-style: none;
  margin: var(--sp-4) 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-2) var(--sp-4);
}

.page-about .about-content__list li {
  display: grid;
  grid-template-columns: 3.6em minmax(0, 1fr);
  gap: var(--sp-2);
  padding-top: var(--sp-2);
  border-top: 1px solid var(--line-soft);
}

.page-about .about-content__list .mono {
  font-family: var(--mono);
  font-size: 1.1rem;
  line-height: 1.3;
  color: var(--gold-bright);
}

.page-about .about-content__list h3 {
  margin: 0 0 4px;
  font-family: var(--serif);
  font-size: .95rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ivory);
}

.page-about .about-content__list p {
  margin: 0;
  font-size: .84rem;
  line-height: 1.78;
  color: var(--ivory-60);
}

.page-about .about-content__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2) var(--sp-4);
}

.page-about .about-content__links .link-gold {
  font-size: .88rem;
  line-height: 1.7;
}

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

/* ---------- 合作 ---------- */

.page-about .about-partners {
  padding-block: clamp(36px, 6vw, 80px);
  border-top: 1px solid var(--line-soft);
}

.page-about .about-partners__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-3);
}

.page-about .about-partners h2 {
  margin-top: 0;
  max-width: 12em;
}

.page-about .about-partners__body p {
  margin: 0 0 var(--sp-3);
  max-width: 34em;
  font-size: .95rem;
  line-height: 1.9;
  color: var(--ivory-80);
}

.page-about .about-partners__body .btn {
  margin-top: var(--sp-2);
}

@media (min-width: 900px) {
  .page-about .about-partners__grid {
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    gap: var(--sp-5);
    align-items: start;
  }
}

/* ---------- 结尾联系 ---------- */

.page-about .about-cta {
  padding-block: clamp(36px, 6vw, 72px);
}

.page-about .about-cta__inner {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 48px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(120deg, rgba(43, 122, 116, .18), rgba(13, 15, 18, .25) 62%);
}

.page-about .about-cta__inner::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -70px;
  width: 190px;
  height: 190px;
  border: 1px solid var(--line);
  border-radius: 50%;
  opacity: .55;
  pointer-events: none;
}

.page-about .about-cta h2 {
  position: relative;
  margin-top: 0;
  z-index: 1;
}

.page-about .about-cta p {
  position: relative;
  margin: 0;
  max-width: 36em;
  font-size: .93rem;
  line-height: 1.9;
  color: var(--ivory-80);
  z-index: 1;
}

.page-about .about-cta__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-2) var(--sp-3);
  margin-top: var(--sp-3) !important;
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-card,
  .page-about .about-card:hover,
  .page-about .filter-btn {
    transition: none;
    transform: none;
  }
}
<<<END>>>