.page-about {
  --ab-moss-soft: #E7EBDD;
  --ab-rock-soft: #EAE6DE;
  --ab-clay-soft: #F5E3D9;
  --ab-line: rgba(217, 164, 65, .42);
  --ab-hair: rgba(30, 58, 50, .12);
  background: var(--cream-2);
  color: var(--ink);
  font-family: var(--sans);
  overflow-x: clip;
}

.page-about *,
.page-about *::before,
.page-about *::after {
  box-sizing: border-box;
}

.page-about img {
  max-width: 100%;
  height: auto;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  font-family: var(--serif);
  font-weight: 800;
  line-height: 1.2;
  margin: 0;
}

.page-about p {
  margin: 0;
}

.page-about .about-band {
  padding: clamp(46px, 6.5vw, 88px) 0;
}

/* 面包屑 */
.page-about .about-bar {
  padding-top: 18px;
}

.page-about .about-crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--rock);
}

.page-about .about-crumbs li + li::before {
  content: "◆";
  margin-right: 10px;
  font-size: 8px;
  color: var(--gold);
  vertical-align: middle;
}

.page-about .about-crumbs a {
  color: var(--rock);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .25s var(--ease), border-color .25s var(--ease);
}

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

.page-about .about-crumbs li[aria-current] {
  color: var(--green);
  font-weight: 600;
}

/* 首屏 */
.page-about .about-hero {
  display: grid;
  gap: clamp(26px, 5vw, 52px);
  position: relative;
  padding-top: clamp(26px, 4vw, 44px);
  padding-bottom: clamp(48px, 7vw, 88px);
}

.page-about .about-title {
  margin: 14px 0 0;
  font-size: clamp(2.05rem, 7vw, 3.7rem);
  font-weight: 900;
  letter-spacing: .01em;
  color: var(--green);
  line-height: 1.14;
}

.page-about .about-title span {
  color: var(--red);
  display: block;
}

.page-about .about-lede {
  margin-top: 18px;
  max-width: 34em;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--rock);
}

.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(118px, 1fr));
  gap: 14px;
  margin: 26px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--ab-hair);
}

.page-about .about-hero__facts > div {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.page-about .about-hero__facts dt {
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--rock);
}

.page-about .about-hero__facts dd {
  margin: 0;
  font-family: var(--serif);
  font-weight: 800;
  font-size: 1.12rem;
  color: var(--green);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .about-hero__art {
  margin: 0;
  position: relative;
}

.page-about .about-hero__art img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 44px 44px 20px 20px;
  background: linear-gradient(150deg, var(--gold-soft), var(--clay) 58%, var(--green));
  box-shadow: var(--shadow-soft);
}

.page-about .about-hero__art::after {
  content: "";
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: -10px;
  height: 3px;
  border-radius: var(--pill);
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

.page-about .about-hero__art figcaption {
  margin-top: 14px;
  font-size: 12.5px;
  letter-spacing: .14em;
  color: var(--rock);
  text-align: center;
}

.page-about .about-rotate {
  display: none;
  margin: 0;
  writing-mode: vertical-rl;
  font-size: 10.5px;
  letter-spacing: .38em;
  color: var(--rock);
}

/* 起点 */
.page-about .about-origin {
  background: var(--cream);
}

.page-about .about-origin__inner {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-about .about-origin h2 {
  margin: 10px 0 18px;
  font-size: clamp(1.6rem, 4.2vw, 2.5rem);
  color: var(--green);
}

.page-about .about-origin__lead p {
  max-width: 38em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--rock);
}

.page-about .about-origin__lead p + p {
  margin-top: 14px;
}

.page-about .about-quote {
  margin: 0;
  padding: 26px 22px;
  border-radius: var(--radius-lg);
  background: var(--ab-rock-soft);
  border-left: 4px solid var(--gold);
}

.page-about .about-quote p {
  font-family: var(--serif);
  font-size: 1.06rem;
  line-height: 1.75;
  color: var(--green);
}

.page-about .about-quote footer {
  margin-top: 14px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--rock);
}

/* 时间轴 */
.page-about .about-road {
  background: var(--cream-2);
}

.page-about .about-road__head {
  display: grid;
  gap: 22px;
  margin-bottom: clamp(30px, 4vw, 48px);
}

.page-about .about-road h2 {
  margin-top: 10px;
  font-size: clamp(1.7rem, 4.6vw, 2.7rem);
  color: var(--green);
}

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

.page-about .about-road__art img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  background: linear-gradient(120deg, var(--gold-soft), var(--cream-2));
  box-shadow: var(--shadow-lift);
}

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

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--gold), rgba(217, 164, 65, .12));
}

.page-about .about-node {
  position: relative;
  padding: 0 0 clamp(26px, 4vw, 38px) 44px;
}

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

.page-about .about-node::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--cream-2);
  border: 2px solid var(--gold);
  box-shadow: 0 0 0 6px rgba(217, 164, 65, .14);
  transition: background .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}

.page-about .about-node:hover::before {
  background: var(--red);
  border-color: var(--red);
  box-shadow: 0 0 0 9px rgba(200, 52, 46, .13);
}

.page-about .about-node__year {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--gold-ink);
}

.page-about .about-node h3 {
  margin: 8px 0 8px;
  font-size: 1.15rem;
  color: var(--green);
  transition: color .3s var(--ease);
}

.page-about .about-node:hover h3 {
  color: var(--red);
}

.page-about .about-node p {
  max-width: 32em;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--rock);
}

/* 团队 */
.page-about .about-team-band {
  background: var(--cream);
}

.page-about .about-team {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
}

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

.page-about .about-team__art img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 40px 20px 40px 20px;
  background: linear-gradient(160deg, var(--ab-moss-soft), var(--ab-clay-soft));
  box-shadow: var(--shadow-lift);
}

.page-about .about-team__art figcaption {
  margin-top: 12px;
  font-size: 12.5px;
  letter-spacing: .14em;
  color: var(--rock);
}

.page-about .about-team h2 {
  margin: 10px 0 14px;
  font-size: clamp(1.7rem, 4.6vw, 2.6rem);
  color: var(--green);
}

.page-about .about-team__lede {
  max-width: 36em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--rock);
}

.page-about .about-roles {
  display: grid;
  gap: 14px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-role {
  padding: 22px 20px 24px;
  border-radius: var(--radius-md);
  background: var(--ab-rock-soft);
  border: 1px solid rgba(30, 58, 50, .08);
}

.page-about .about-role--moss {
  background: var(--ab-moss-soft);
}

.page-about .about-role--clay {
  background: var(--ab-clay-soft);
}

.page-about .about-role__num {
  display: block;
  font-family: var(--serif);
  font-size: 1.95rem;
  font-weight: 900;
  line-height: 1;
  color: var(--red);
}

.page-about .about-role__num small {
  font-family: var(--sans);
  font-size: .42em;
  font-weight: 700;
  letter-spacing: .1em;
  margin-left: 4px;
  color: var(--rock);
}

.page-about .about-role h3 {
  margin: 10px 0 8px;
  font-size: 1.04rem;
  color: var(--green);
}

.page-about .about-role p {
  font-size: 14.8px;
  line-height: 1.72;
  color: var(--rock);
}

/* 内容标准 */
.page-about .about-standard {
  position: relative;
  overflow: hidden;
  background: linear-gradient(155deg, var(--green) 0%, var(--green-2) 100%);
  color: var(--cream);
}

.page-about .about-standard::before {
  content: "";
  position: absolute;
  top: -28%;
  right: -18%;
  width: 440px;
  height: 440px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(217, 164, 65, .22), transparent 68%);
  pointer-events: none;
}

.page-about .about-standard__inner {
  position: relative;
  display: grid;
  gap: clamp(24px, 4vw, 46px);
}

.page-about .about-standard .eyebrow {
  color: var(--gold);
}

.page-about .about-standard h2 {
  margin: 10px 0 16px;
  font-size: clamp(1.7rem, 4.6vw, 2.6rem);
  color: var(--gold-soft);
}

.page-about .about-standard__copy p {
  max-width: 30em;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(247, 240, 228, .82);
}

.page-about .about-checklist {
  counter-reset: ab-step;
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-checklist li {
  counter-increment: ab-step;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  background: rgba(247, 240, 228, .07);
  border: 1px solid rgba(240, 217, 168, .22);
  font-size: 15px;
  line-height: 1.72;
  color: rgba(247, 240, 228, .92);
}

.page-about .about-checklist li::before {
  content: "0" counter(ab-step);
  font-family: var(--serif);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: .06em;
  color: var(--gold);
  padding-top: 2px;
}

/* 合作生态 */
.page-about .about-partners {
  background: var(--cream-2);
}

.page-about .about-partners__head h2 {
  margin: 10px 0 14px;
  font-size: clamp(1.7rem, 4.6vw, 2.6rem);
  color: var(--green);
}

.page-about .about-partners__head p {
  max-width: 40em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--rock);
}

.page-about .about-partners__grid {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.page-about .about-partner {
  padding: 26px 22px 28px;
  border-radius: var(--radius-lg);
  background: var(--ab-rock-soft);
  border: 1px solid rgba(30, 58, 50, .1);
}

.page-about .about-partner:nth-child(2) {
  background: var(--ab-moss-soft);
}

.page-about .about-partner__num {
  font-family: var(--serif);
  font-size: clamp(2.3rem, 6vw, 3.1rem);
  font-weight: 900;
  line-height: 1;
  color: var(--green);
}

.page-about .about-partner__num span {
  margin-left: 6px;
  font-family: var(--sans);
  font-size: .32em;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--rock);
  vertical-align: super;
}

.page-about .about-partner h3 {
  margin: 12px 0 8px;
  font-size: 1.05rem;
  color: var(--green);
}

.page-about .about-partner p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--rock);
}

.page-about .about-partners__cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--ab-hair);
}

.page-about .about-partners__cta p {
  flex: 1 1 20em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--rock);
}

/* 数据 */
.page-about .about-numbers {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--red) 0%, var(--red-deep) 62%, #7d1d19 100%);
  color: var(--cream);
}

.page-about .about-numbers::after {
  content: "";
  position: absolute;
  left: -12%;
  bottom: -40%;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  border: 1px solid rgba(240, 217, 168, .22);
  pointer-events: none;
}

.page-about .about-numbers h2 {
  font-size: clamp(1.6rem, 4.2vw, 2.4rem);
  color: var(--cream-2);
}

.page-about .about-metrics {
  display: grid;
  gap: 18px;
  margin: 28px 0 0;
  padding: 0;
}

.page-about .about-metric {
  display: flex;
  flex-direction: column-reverse;
  gap: 6px;
  padding-top: 16px;
  border-top: 1px solid rgba(240, 217, 168, .4);
}

.page-about .about-metric dd {
  margin: 0;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(2rem, 5.4vw, 2.9rem);
  line-height: 1.05;
  color: var(--gold-soft);
}

.page-about .about-metric dd small {
  margin-left: 4px;
  font-family: var(--sans);
  font-size: .34em;
  font-weight: 700;
  letter-spacing: .1em;
  color: rgba(247, 240, 228, .88);
}

.page-about .about-metric dt {
  font-size: 12.5px;
  letter-spacing: .18em;
  color: rgba(247, 240, 228, .88);
}

.page-about .about-numbers__note {
  position: relative;
  margin-top: 28px;
  padding-left: 16px;
  border-left: 3px solid var(--gold);
  max-width: 46em;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(247, 240, 228, .92);
}

/* 入口 */
.page-about .about-next {
  background: var(--cream-2);
}

.page-about .about-next__inner {
  display: grid;
  gap: 18px;
}

.page-about .about-next h2 {
  font-size: clamp(1.5rem, 3.8vw, 2.1rem);
  color: var(--green);
}

.page-about .about-next p {
  max-width: 40em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--rock);
}

.page-about .about-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

.page-about .about-next__links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: var(--pill);
  border: 1px solid rgba(30, 58, 50, .22);
  color: var(--green);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: background .28s var(--ease), color .28s var(--ease), border-color .28s var(--ease);
}

.page-about .about-next__links a::after {
  content: "→";
  font-size: 13px;
  color: var(--gold-ink);
}

.page-about .about-next__links a:hover {
  background: var(--green);
  border-color: var(--green);
  color: var(--cream);
}

.page-about .about-next__links a:hover::after {
  color: var(--gold);
}

/* 平板与桌面 */
@media (min-width: 620px) {
  .page-about .about-roles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-role:nth-child(3) {
    grid-column: 1 / -1;
  }
}

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

  .page-about .about-metrics {
    gap: 24px 28px;
  }
}

@media (min-width: 900px) {
  .page-about .about-road__head {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: end;
    gap: 44px;
  }

  .page-about .about-origin__inner {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    align-items: start;
  }

  .page-about .about-standard__inner {
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    align-items: start;
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
    align-items: start;
  }

  /* 时间轴交替布局 */
  .page-about .about-timeline::before {
    left: 50%;
    transform: translateX(-1px);
  }

  .page-about .about-node {
    width: 50%;
    padding: 0 56px clamp(32px, 3.4vw, 46px) 0;
    text-align: right;
  }

  .page-about .about-node::before {
    left: auto;
    right: -12px;
  }

  .page-about .about-node p {
    margin-left: auto;
  }

  .page-about .about-node:nth-child(even) {
    margin-left: 50%;
    padding: 0 0 clamp(32px, 3.4vw, 46px) 56px;
    text-align: left;
  }

  .page-about .about-node:nth-child(even)::before {
    left: -12px;
    right: auto;
  }

  .page-about .about-node:nth-child(even) p {
    margin-left: 0;
  }
}

@media (min-width: 980px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: center;
    padding-right: 38px;
  }

  .page-about .about-rotate {
    display: block;
    position: absolute;
    top: 30%;
    right: -4px;
  }

  .page-about .about-metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-next__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    column-gap: 40px;
  }

  .page-about .about-next h2 {
    grid-column: 1;
  }

  .page-about .about-next p {
    grid-column: 1;
  }

  .page-about .about-next__links {
    grid-column: 2;
    grid-row: 1 / span 2;
    justify-content: flex-end;
    margin-top: 0;
    max-width: 320px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }
}
<<<END>>>