.page-about {
  --about-line: rgba(34, 224, 214, .22);
  position: relative;
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + 40px) 0 clamp(48px, 8vw, 92px);
  background:
    radial-gradient(120% 92% at 84% 6%, rgba(123, 91, 255, .3), transparent 62%),
    radial-gradient(86% 70% at 6% 0%, rgba(34, 224, 214, .18), transparent 60%),
    var(--void);
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
}

.page-about .about-hero .breadcrumb {
  margin: 0 0 clamp(24px, 4vw, 38px);
}

.page-about .about-hero .eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
}

.page-about .about-hero__title {
  display: grid;
  gap: 4px;
  max-width: 15ch;
  margin: 0 0 clamp(18px, 3vw, 26px);
}

.page-about .about-hero__accent {
  background: linear-gradient(96deg, var(--cyan), var(--violet) 76%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-about .about-hero__lead {
  max-width: 62ch;
  color: var(--mute);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(26px, 4vw, 38px);
}

.page-about .about-hero__ghost {
  position: absolute;
  right: -3vw;
  bottom: -4vw;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(120px, 27vw, 340px);
  line-height: .78;
  letter-spacing: -.05em;
  color: rgba(232, 236, 255, .045);
  pointer-events: none;
  user-select: none;
}

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

.page-about .origin-grid {
  display: grid;
  gap: clamp(26px, 4.5vw, 52px);
}

.page-about .origin-copy .eyebrow {
  margin: 0 0 12px;
  color: var(--violet);
}

.page-about .origin-copy .display-2 {
  margin: 0 0 clamp(16px, 2.6vw, 22px);
  max-width: 20ch;
}

.page-about .origin-copy p {
  max-width: 58ch;
  color: var(--mute);
}

.page-about .origin-copy p + p {
  margin-top: 16px;
}

.page-about .origin-panel {
  padding: clamp(22px, 3vw, 32px);
  border-radius: var(--r-lg);
}

.page-about .origin-panel__label {
  margin: 0;
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: .16em;
}

.page-about .origin-panel ul {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 15px;
}

.page-about .origin-panel li {
  position: relative;
  padding-left: 22px;
  color: var(--ink);
  line-height: 1.7;
  font-size: 15px;
}

.page-about .origin-panel li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(34, 224, 214, .75);
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline__head {
  margin-bottom: clamp(24px, 4vw, 38px);
}

.page-about .about-timeline__head .eyebrow {
  margin: 0 0 12px;
  color: var(--cyan);
}

.page-about .about-timeline__head .display-2 {
  margin: 0 0 clamp(14px, 2.4vw, 20px);
  max-width: 22ch;
}

.page-about .about-timeline__head .lead {
  max-width: 60ch;
  color: var(--mute);
}

.page-about .about-timeline__figure {
  margin: 0 0 clamp(26px, 4vw, 42px);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-about .about-timeline__figure .figure-caption {
  padding: 12px 4px 0;
}

.page-about .year-nav {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 2px 2px 12px;
  margin-bottom: clamp(30px, 5vw, 54px);
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-about .year-nav a {
  flex: 0 0 auto;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid var(--edge);
  background: rgba(22, 32, 74, .55);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  text-decoration: none;
  transition: background .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease);
}

.page-about .year-nav a:hover,
.page-about .year-nav a:focus-visible {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--on-accent);
}

.page-about .year-nav a:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-about .tl {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: clamp(26px, 4.6vw, 44px);
}

.page-about .tl::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 15px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg,
      rgba(34, 224, 214, 0) 0%,
      var(--cyan) 14%,
      var(--violet) 82%,
      rgba(123, 91, 255, 0) 100%);
}

.page-about .tl-item {
  position: relative;
  padding-left: 46px;
}

.page-about .tl-node {
  position: absolute;
  left: 15px;
  top: 26px;
  width: 13px;
  height: 13px;
  margin-left: -6.5px;
  border-radius: 50%;
  background: var(--void);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 0 4px rgba(34, 224, 214, .14), 0 0 16px rgba(34, 224, 214, .55);
}

.page-about .tl-card {
  padding: clamp(20px, 3vw, 28px);
  border-radius: var(--r-lg);
}

.page-about .tl-year {
  display: block;
  margin-bottom: 8px;
  color: var(--cyan);
  font-size: 13px;
  letter-spacing: .16em;
}

.page-about .tl-title {
  margin: 0 0 10px;
  font-size: clamp(19px, 2.4vw, 23px);
  line-height: 1.32;
  color: var(--ink);
  letter-spacing: -.01em;
}

.page-about .tl-text {
  margin: 0;
  color: var(--mute);
  line-height: 1.75;
}

.page-about .tl-fold {
  margin-top: 18px;
}

.page-about .tl-fold .fold-body p {
  margin: 0;
  color: var(--mute);
  line-height: 1.75;
  font-size: 14px;
}

/* ---------- 发布节奏 ---------- */
.page-about .about-cadence {
  background: var(--void);
}

.page-about .cadence-grid {
  display: grid;
  gap: clamp(28px, 5vw, 56px);
}

.page-about .cadence-figure {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-about .cadence-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(88px, 21vw, 190px);
  line-height: .82;
  letter-spacing: -.05em;
  background: linear-gradient(158deg, var(--cyan) 8%, var(--violet) 82%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-about .cadence-label {
  color: var(--mute);
  font-size: 13px;
  letter-spacing: .04em;
  line-height: 1.6;
  max-width: 24ch;
}

.page-about .cadence-copy .eyebrow {
  margin: 0 0 12px;
  color: var(--orange);
}

.page-about .cadence-copy .display-2 {
  margin: 0 0 clamp(14px, 2.4vw, 20px);
  max-width: 24ch;
}

.page-about .cadence-copy > p {
  max-width: 58ch;
  color: var(--mute);
}

.page-about .cadence-list {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 16px;
}

.page-about .cadence-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding-top: 14px;
  border-top: 1px solid var(--edge-soft);
}

.page-about .cadence-list .mono {
  padding-top: .32em;
  color: var(--orange);
  font-size: 12px;
  letter-spacing: .14em;
}

.page-about .cadence-list li span:last-child {
  color: var(--mute);
  line-height: 1.75;
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  background: var(--deep-1);
}

.page-about .about-team__head {
  margin-bottom: clamp(6px, 2vw, 12px);
}

.page-about .about-team__head .eyebrow {
  margin: 0 0 12px;
  color: var(--cyan);
}

.page-about .about-team__head .display-2 {
  margin: 0 0 clamp(14px, 2.4vw, 20px);
}

.page-about .about-team__head .lead {
  max-width: 58ch;
  color: var(--mute);
}

.page-about .about-team .segmented {
  margin: clamp(24px, 4vw, 36px) 0 clamp(18px, 3vw, 26px);
  width: 100%;
  overflow-x: auto;
}

.page-about .team-panel {
  margin-top: 14px;
  padding: clamp(22px, 3vw, 34px);
  border-radius: var(--r-lg);
  border: 1px solid var(--edge);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(123, 91, 255, .16), transparent 58%),
    linear-gradient(152deg, rgba(22, 32, 74, .92), rgba(7, 11, 30, .72));
}

.page-about .team-panel:first-child {
  margin-top: 0;
}

.page-about .team-panel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.page-about .team-panel__head h3 {
  margin: 0;
  font-size: clamp(19px, 2.4vw, 23px);
  color: var(--ink);
  letter-spacing: -.01em;
}

.page-about .team-count {
  color: var(--orange);
  font-size: 13px;
  letter-spacing: .08em;
}

.page-about .team-panel > p {
  margin: 0;
  max-width: 58ch;
  color: var(--mute);
  line-height: 1.75;
}

.page-about .team-list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-about .team-list li {
  position: relative;
  padding-left: 20px;
  color: var(--ink);
  font-size: 15px;
  line-height: 1.7;
}

.page-about .team-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: 10px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
}

.page-about .team-figure {
  margin: clamp(28px, 4.5vw, 46px) 0 0;
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-about .team-figure .figure-caption {
  padding: 12px 4px 0;
}

/* ---------- 资质 ---------- */
.page-about .about-honor__head {
  margin-bottom: clamp(10px, 2vw, 16px);
}

.page-about .about-honor__head .eyebrow {
  margin: 0 0 12px;
  color: var(--violet);
}

.page-about .about-honor__head .display-2 {
  margin: 0 0 clamp(14px, 2.4vw, 20px);
  max-width: 20ch;
}

.page-about .about-honor__head .lead {
  max-width: 58ch;
  color: var(--mute);
}

.page-about .honor-grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(24px, 4vw, 38px);
}

.page-about .honor-card {
  padding: clamp(22px, 3vw, 32px);
  border-radius: var(--r-lg);
  border: 1px solid var(--edge);
  background:
    radial-gradient(130% 90% at 100% 0%, rgba(34, 224, 214, .13), transparent 58%),
    linear-gradient(155deg, rgba(22, 32, 74, .9), rgba(7, 11, 30, .72));
}

.page-about .honor-year {
  display: block;
  margin-bottom: 12px;
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: .16em;
}

.page-about .honor-card h3 {
  margin: 0 0 12px;
  font-size: clamp(18px, 2.2vw, 21px);
  color: var(--ink);
  letter-spacing: -.01em;
}

.page-about .honor-card p {
  margin: 0;
  max-width: 52ch;
  color: var(--mute);
  line-height: 1.78;
  font-size: 15px;
}

/* ---------- 合作与覆盖 ---------- */
.page-about .about-eco {
  background: var(--void);
}

.page-about .about-eco__head .eyebrow {
  margin: 0 0 12px;
  color: var(--cyan);
}

.page-about .about-eco__head .display-2 {
  margin: 0 0 clamp(14px, 2.4vw, 20px);
  max-width: 24ch;
}

.page-about .about-eco__head .lead {
  max-width: 58ch;
  color: var(--mute);
}

.page-about .eco-metrics {
  display: grid;
  gap: 14px;
  margin: clamp(26px, 4vw, 40px) 0 clamp(28px, 4.5vw, 44px);
}

.page-about .eco-metric {
  padding: 22px 20px;
  border-radius: var(--r-md);
  border: 1px solid var(--edge-soft);
  background: rgba(14, 21, 51, .62);
}

.page-about .eco-metric__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(42px, 9vw, 62px);
  line-height: 1;
  letter-spacing: -.03em;
  background: linear-gradient(150deg, var(--cyan), var(--violet));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-about .eco-metric__label {
  display: block;
  margin-top: 12px;
  color: var(--mute);
  font-size: 14px;
  line-height: 1.6;
}

.page-about .eco-figure {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-about .eco-figure .figure-caption {
  padding: 12px 4px 0;
}

/* ---------- 结尾 ---------- */
.page-about .about-cta__inner {
  display: grid;
  gap: 16px;
  justify-items: start;
}

.page-about .about-cta__inner .display-2 {
  margin: 0;
  max-width: 22ch;
}

.page-about .about-cta__text {
  margin: 0;
  max-width: 58ch;
  color: var(--mute);
  line-height: 1.78;
}

.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-about .eco-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (min-width: 780px) {
  .page-about .honor-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }
}

@media (min-width: 900px) {
  .page-about .origin-grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, .82fr);
    align-items: start;
  }

  .page-about .cadence-grid {
    grid-template-columns: minmax(0, .72fr) minmax(0, 1.28fr);
    align-items: center;
  }

  .page-about .about-hero__title {
    max-width: 18ch;
  }

  .page-about .tl {
    gap: 0;
  }

  .page-about .tl::before {
    left: 50%;
    margin-left: -1px;
  }

  .page-about .tl-item {
    width: 50%;
    padding-left: 0;
  }

  .page-about .tl-item + .tl-item {
    margin-top: clamp(30px, 4vw, 54px);
  }

  .page-about .tl-item:nth-child(odd) {
    padding-right: 50px;
  }

  .page-about .tl-item:nth-child(even) {
    margin-left: 50%;
    padding-left: 50px;
  }

  .page-about .tl-item:nth-child(odd) .tl-node {
    left: auto;
    right: -6.5px;
    margin-left: 0;
  }

  .page-about .tl-item:nth-child(even) .tl-node {
    left: -6.5px;
    margin-left: 0;
  }

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

@media (min-width: 1100px) {
  .page-about .eco-metrics {
    gap: 20px;
  }
}
<<<END>>>