/* ============================================================
   品牌故事页 /story/ —— 页面作用域 .page-about
   ============================================================ */

.page-about {
  background:
    radial-gradient(115% 55% at 84% -8%, rgba(108, 75, 244, .22), transparent 60%),
    radial-gradient(95% 45% at 2% 104%, rgba(51, 225, 224, .14), transparent 62%),
    linear-gradient(180deg, var(--space-ink) 0%, var(--space-blue) 26%, #0E2C28 74%, var(--space-ink) 100%);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  padding: clamp(26px, 5vw, 56px) 0 clamp(36px, 6vw, 84px);
}

.page-about .about-hero .breadcrumb {
  margin-bottom: clamp(24px, 4vw, 48px);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 5vw, 56px);
}

@media (min-width: 960px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    column-gap: clamp(40px, 6vw, 104px);
    align-items: end;
  }
}

.page-about .about-hero__eyebrow {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  line-height: var(--lh-index);
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--electric-cyan);
}

.page-about .about-hero__title {
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 5.4vw, 56px);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--star-white);
  max-width: 22ch;
}

.page-about .about-hero__lead {
  margin: 0;
  max-width: 46ch;
  font-size: 17px;
  line-height: 1.8;
  color: var(--star-grey);
}

/* ---------- 首屏数据格 ---------- */

.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid rgba(27, 42, 85, .85);
  border-left: 1px solid rgba(27, 42, 85, .85);
}

.page-about .about-stat {
  padding: 16px 16px 18px;
  border-right: 1px solid rgba(27, 42, 85, .85);
  border-bottom: 1px solid rgba(27, 42, 85, .85);
  background: rgba(11, 18, 38, .55);
}

.page-about .about-stat__num {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: clamp(22px, 2.6vw, 28px);
  line-height: 1.1;
  font-weight: 700;
  color: var(--amber);
  letter-spacing: .02em;
}

.page-about .about-stat__label {
  margin: 0;
  font-size: var(--fs-index);
  line-height: 1.6;
  color: var(--star-grey);
}

/* ---------- 区块通用节奏 ---------- */

.page-about .about-origin,
.page-about .about-lines,
.page-about .about-team,
.page-about .about-history,
.page-about .about-ops,
.page-about .about-next {
  position: relative;
  padding: clamp(44px, 6.5vw, 96px) 0;
}

.page-about .section__note {
  max-width: 52ch;
}

/* ---------- 品牌起点 ---------- */

.page-about .about-origin__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 40px);
}

@media (min-width: 900px) {
  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    column-gap: clamp(32px, 6vw, 96px);
    align-items: start;
  }
}

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

@media (min-width: 900px) {
  .page-about .about-origin__head {
    position: sticky;
    top: 96px;
  }
}

.page-about .about-origin__body p {
  margin: 0 0 20px;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--star-grey);
  max-width: 38em;
}

.page-about .about-origin__body p:last-of-type {
  margin-bottom: 0;
}

.page-about .about-origin__tags {
  margin-top: 26px;
}

/* ---------- 四条内容线 ---------- */

.page-about .about-lines__head {
  margin-bottom: clamp(30px, 5vw, 56px);
}

.page-about .about-lines__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(32px, 5vw, 64px);
}

@media (min-width: 1024px) {
  .page-about .about-lines__layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    column-gap: clamp(40px, 7vw, 110px);
    align-items: start;
  }

  .page-about .about-lines__graph {
    position: sticky;
    top: 88px;
  }
}

.page-about .about-lines__graph {
  position: relative;
  width: 100%;
  max-width: 380px;
  margin: 0 auto;
  aspect-ratio: 1 / 1;
}

.page-about .orbit-graph__svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.page-about .orbit-graph__ring {
  transform-origin: 160px 160px;
  animation: about-orbit-spin 90s linear infinite;
}

@keyframes about-orbit-spin {
  to { transform: rotate(360deg); }
}

.page-about .orbit-graph__core {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  fill: var(--star-grey);
  opacity: .72;
}

.page-about .orbit-label {
  position: absolute;
  transform: translate(-50%, -50%);
  max-width: 46%;
  padding: 2px 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.55;
  letter-spacing: .03em;
  text-align: center;
  text-decoration: none;
  color: var(--star-grey);
  transition: color .25s var(--ease);
}

.page-about .orbit-label span {
  color: var(--electric-cyan);
  margin-right: 3px;
}

.page-about .orbit-label:hover,
.page-about .orbit-label:focus-visible {
  color: var(--star-white);
}

.page-about .orbit-label--top { left: 50%; top: 25%; }
.page-about .orbit-label--right { left: 76%; top: 50%; }
.page-about .orbit-label--bottom { left: 50%; top: 75%; }
.page-about .orbit-label--left { left: 24%; top: 50%; }

.page-about .about-lines__items {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-line {
  padding: 24px 0 26px;
  border-top: 1px solid rgba(27, 42, 85, .85);
  scroll-margin-top: 104px;
}

.page-about .about-line:last-child {
  border-bottom: 1px solid rgba(27, 42, 85, .85);
}

.page-about .about-line__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 12px;
}

.page-about .about-line__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  letter-spacing: .16em;
  color: var(--electric-cyan);
}

.page-about .about-line__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.2vw, 23px);
  line-height: 1.4;
  color: var(--star-white);
}

.page-about .about-line__text {
  margin: 0;
  max-width: 40em;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--star-grey);
}

.page-about .about-line__points {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-about .about-line__points li {
  position: relative;
  padding-left: 18px;
  font-size: var(--fs-note);
  line-height: var(--lh-note);
  color: var(--star-grey);
}

.page-about .about-line__points li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--electric-cyan);
  opacity: .6;
}

.page-about .about-lines__figure {
  margin: clamp(34px, 5vw, 60px) 0 0;
}

/* ---------- 团队与协作 ---------- */

.page-about .about-team__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 60px);
}

@media (min-width: 960px) {
  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    column-gap: clamp(36px, 6vw, 88px);
    align-items: center;
  }
}

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

.page-about .about-team__intro {
  margin: 18px 0 0;
  max-width: 40em;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--star-grey);
}

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

@media (min-width: 720px) {
  .page-about .about-roles {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(20px, 3vw, 44px);
  }
}

.page-about .about-role {
  padding: 14px 0 16px;
  border-top: 1px solid rgba(27, 42, 85, .8);
}

.page-about .about-role__name {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: var(--fs-note);
  letter-spacing: .06em;
  color: var(--city-sky);
}

.page-about .about-role__desc {
  margin: 0;
  font-size: var(--fs-note);
  line-height: var(--lh-note);
  color: var(--star-grey);
}

.page-about .about-team__note {
  margin: 24px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--amber);
  max-width: 40em;
  font-size: var(--fs-note);
  line-height: var(--lh-note);
  color: var(--star-white);
}

/* ---------- 发展历程：纵向时间轴 ---------- */

.page-about .about-history__head {
  margin-bottom: clamp(32px, 5vw, 56px);
}

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

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--nebula-purple), var(--electric-cyan) 62%, transparent);
  opacity: .55;
}

.page-about .timeline__item {
  position: relative;
  padding: 0 0 34px 44px;
}

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

.page-about .timeline__marker {
  position: absolute;
  left: 0;
  top: 4px;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  border: 1px solid var(--orbit-blue);
  background: var(--space-ink);
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease);
}

.page-about .timeline__marker::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: var(--grad-nebula);
  opacity: .85;
}

.page-about .timeline__item:hover .timeline__marker {
  border-color: var(--electric-cyan);
  box-shadow: 0 0 0 5px rgba(51, 225, 224, .12);
}

.page-about .timeline__stage {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--electric-cyan);
}

.page-about .timeline__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.2vw, 24px);
  line-height: 1.38;
  color: var(--star-white);
}

.page-about .timeline__text {
  margin: 0;
  max-width: 40em;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--star-grey);
}

/* ---------- 运营地区与资质 ---------- */

.page-about .about-ops {
  padding-top: clamp(88px, 13vw, 190px);
}

.page-about .about-ops__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(32px, 5vw, 60px);
}

@media (min-width: 960px) {
  .page-about .about-ops__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    column-gap: clamp(40px, 6vw, 96px);
    align-items: start;
  }
}

.page-about .about-ops__intro {
  margin: 18px 0 0;
  max-width: 40em;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--star-grey);
}

.page-about .about-facts {
  margin: 28px 0 0;
  display: grid;
  gap: 1px;
  background: rgba(27, 42, 85, .7);
  border: 1px solid rgba(27, 42, 85, .7);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-about .about-fact {
  display: grid;
  grid-template-columns: minmax(78px, 108px) minmax(0, 1fr);
  gap: 14px;
  padding: 13px 16px;
  background: rgba(5, 7, 15, .78);
}

.page-about .about-fact dt {
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  line-height: 1.7;
  letter-spacing: .08em;
  color: var(--city-sky);
}

.page-about .about-fact dd {
  margin: 0;
  font-size: var(--fs-note);
  line-height: 1.7;
  color: var(--star-white);
  overflow-wrap: anywhere;
}

.page-about .about-fact dd a {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: rgba(51, 225, 224, .55);
  text-underline-offset: 3px;
}

.page-about .about-services {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-services li {
  position: relative;
  padding-left: 20px;
  font-size: var(--fs-note);
  line-height: var(--lh-note);
  color: var(--star-grey);
}

.page-about .about-services li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 8px;
  width: 8px;
  height: 8px;
  border-left: 1px solid var(--electric-cyan);
  border-top: 1px solid var(--electric-cyan);
  transform: rotate(45deg);
  opacity: .8;
}

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

/* ---------- 下一步 ---------- */

.page-about .about-next__panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 40px);
  padding: clamp(26px, 4.5vw, 52px);
  border: 1px solid var(--orbit-blue);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(140deg, rgba(108, 75, 244, .18) 0%, rgba(51, 225, 224, .07) 62%, transparent 100%);
}

@media (min-width: 900px) {
  .page-about .about-next__panel {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    column-gap: clamp(32px, 5vw, 72px);
    align-items: center;
  }
}

.page-about .about-next__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 2.8vw, 32px);
  line-height: 1.3;
  color: var(--star-white);
}

.page-about .about-next__text {
  margin: 0;
  max-width: 40em;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--star-grey);
}

.page-about .about-next__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-next__links .btn {
  display: inline-block;
}

/* ---------- 移动端收口 ---------- */

@media (max-width: 640px) {
  .page-about .about-stats {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-about .about-lines__graph {
    max-width: 300px;
  }

  .page-about .orbit-label {
    font-size: 10px;
    max-width: 52%;
  }

  .page-about .timeline__item {
    padding-left: 34px;
  }

  .page-about .about-fact {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }

  .page-about .about-next__links .btn {
    flex: 1 1 100%;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .orbit-graph__ring {
    animation: none;
  }

  .page-about .orbit-label,
  .page-about .timeline__marker {
    transition: none;
  }
}
<<<END>>>