.page-about {
  overflow-x: clip;
}

.page-about .about-hero {
  position: relative;
  background: var(--paper);
  color: var(--graphite);
  padding-block: 28px 72px;
  overflow: hidden;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  top: -120px;
  right: -140px;
  width: 460px;
  height: 460px;
  background: linear-gradient(140deg, rgba(49, 183, 176, .22), rgba(49, 183, 176, 0) 68%);
  clip-path: polygon(0 0, 100% 22%, 100% 100%, 18% 100%);
  pointer-events: none;
}

.page-about .about-hero__crumbs {
  position: relative;
  z-index: 1;
  margin-bottom: 26px;
}

.page-about .about-hero__crumbs .breadcrumbs-list,
.page-about .about-hero__crumbs .breadcrumbs-list a {
  color: var(--haze);
}

.page-about .about-hero__crumbs .breadcrumbs-list a:hover {
  color: var(--lake);
}

.page-about .about-hero__crumbs [aria-current="page"] {
  color: var(--graphite);
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  align-items: start;
}

.page-about .about-hero .eyebrow {
  color: var(--lake);
}

.page-about .about-hero .display-title {
  color: var(--ink-night);
  margin: 10px 0 20px;
  max-width: 16em;
}

.page-about .about-hero .lede {
  color: var(--graphite);
  font-size: clamp(17px, 2.1vw, 19px);
  line-height: 1.7;
  max-width: 34em;
}

.page-about .about-hero__body {
  margin-top: 16px;
  color: #3b4356;
  font-size: 16px;
  line-height: 1.72;
  max-width: 34em;
}

.page-about .about-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 26px;
}

.page-about .about-hero__stamp {
  background: rgba(10, 23, 51, .06);
  color: var(--graphite);
  border: 1px solid rgba(10, 23, 51, .14);
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  font-size: 13px;
}

.page-about .about-hero__stamp .num {
  color: var(--ink-night);
  font-weight: 700;
}

.page-about .about-hero__alert {
  text-decoration: none;
  transition: transform var(--ease), box-shadow var(--ease);
}

.page-about .about-hero__alert:hover,
.page-about .about-hero__alert:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(255, 123, 63, .3);
}

.page-about .about-hero__figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 24px 54px -32px rgba(10, 23, 51, .6);
}

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

.page-about .about-hero__figure .media-caption {
  background: rgba(10, 23, 51, .92);
  color: var(--text-body);
  font-size: 13px;
  line-height: 1.6;
  padding: 12px 16px;
}

/* ---------- 时间轴 ---------- */

.page-about .about-timeline {
  background: var(--paper);
  color: var(--graphite);
  padding-block: 16px 88px;
}

.page-about .about-timeline__head {
  max-width: 46em;
  margin-bottom: 40px;
}

.page-about .about-timeline__head .eyebrow {
  color: var(--lake);
}

.page-about .about-timeline__head .display-title {
  color: var(--ink-night);
  margin: 10px 0 16px;
}

.page-about .about-timeline__intro {
  color: #3b4356;
  font-size: 16px;
  line-height: 1.72;
}

.page-about .about-timeline__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-about .about-timeline__rail {
  position: relative;
  display: none;
}

.page-about .about-timeline__rail-label {
  display: block;
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--haze);
  margin-bottom: 14px;
}

.page-about .about-timeline__spine {
  position: absolute;
  top: 42px;
  left: 26px;
  width: 24px;
  height: calc(100% - 54px);
  color: rgba(10, 23, 51, .22);
}

.page-about .about-timeline__rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.page-about .about-timeline__rail-link {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--haze);
  text-decoration: none;
  transition: color var(--ease);
}

.page-about .about-timeline__rail-link::before {
  content: "";
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid rgba(10, 23, 51, .35);
  margin-left: 20px;
  transition: background var(--ease), border-color var(--ease), transform var(--ease);
}

.page-about .about-timeline__rail-link:hover,
.page-about .about-timeline__rail-link:focus-visible {
  color: var(--ink-night);
}

.page-about .about-timeline__rail-link:hover::before,
.page-about .about-timeline__rail-link:focus-visible::before {
  background: var(--lake);
  border-color: var(--lake);
  transform: scale(1.18);
}

.page-about .about-timeline__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-about .tl-item {
  position: relative;
  background: rgba(255, 255, 255, .55);
  border: 1px solid rgba(10, 23, 51, .1);
  border-radius: var(--radius-md);
  padding: 22px 22px 24px;
  scroll-margin-top: 96px;
  transition: border-color var(--ease), transform var(--ease), box-shadow var(--ease);
}

.page-about .tl-item:hover {
  border-color: rgba(49, 183, 176, .65);
  transform: translateY(-3px);
  box-shadow: 0 18px 34px -26px rgba(10, 23, 51, .7);
}

.page-about .tl-item__year {
  display: block;
  font-size: clamp(30px, 6vw, 44px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.03em;
  color: rgba(10, 23, 51, .18);
}

.page-about .tl-item__title {
  margin: 12px 0 10px;
  font-size: clamp(17px, 2.2vw, 20px);
  line-height: 1.42;
  color: var(--ink-night);
  letter-spacing: -.01em;
}

.page-about .tl-item__text {
  margin: 0;
  color: #3b4356;
  font-size: 15px;
  line-height: 1.72;
}

/* ---------- 团队 ---------- */

.page-about .about-team {
  background: var(--ink-night);
  color: var(--text-body);
  padding-block: 76px;
}

.page-about .about-team__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  align-items: start;
}

.page-about .about-team .display-title {
  color: var(--text-strong);
  margin: 10px 0 18px;
}

.page-about .about-team__lede {
  font-size: 16px;
  line-height: 1.74;
  color: var(--text-body);
  max-width: 36em;
}

.page-about .shift-board {
  margin-top: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--ink-rail);
  overflow: hidden;
}

.page-about .shift-row {
  display: grid;
  grid-template-columns: 14px 1fr;
  grid-template-areas:
    "light name"
    "light time"
    "light desc";
  gap: 2px 12px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
}

.page-about .shift-row:last-child {
  border-bottom: 0;
}

.page-about .shift-row--signal {
  background: rgba(255, 123, 63, .08);
}

.page-about .shift-light {
  grid-area: light;
  align-self: center;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--haze);
  box-shadow: 0 0 0 4px rgba(115, 131, 163, .16);
}

.page-about .shift-light--lake {
  background: var(--lake);
  box-shadow: 0 0 0 4px rgba(49, 183, 176, .18);
}

.page-about .shift-light--signal {
  background: var(--signal);
  box-shadow: 0 0 0 4px rgba(255, 123, 63, .22);
}

.page-about .shift-name {
  grid-area: name;
  font-weight: 700;
  color: var(--text-strong);
  font-size: 15px;
}

.page-about .shift-time {
  grid-area: time;
  font-size: 13px;
  color: var(--lake-soft);
}

.page-about .shift-desc {
  grid-area: desc;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--haze);
}

.page-about .about-team__figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-about .about-team__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

.page-about .about-team__figure .media-caption {
  display: block;
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--haze);
  background: var(--ink-rail);
}

/* ---------- 校验流程 ---------- */

.page-about .about-check {
  background: var(--ink-night);
  color: var(--text-body);
  padding-block: 10px 84px;
}

.page-about .about-check__head {
  max-width: 44em;
  margin-bottom: 34px;
}

.page-about .about-check__head .display-title {
  color: var(--text-strong);
  margin: 10px 0 14px;
}

.page-about .about-check__intro {
  color: var(--text-body);
  font-size: 16px;
  line-height: 1.72;
}

.page-about .about-check__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
}

.page-about .check-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-about .check-step__details {
  background: var(--ink-rail);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  transition: border-color var(--ease), background var(--ease);
}

.page-about .check-step__details:hover {
  border-color: var(--line-strong);
}

.page-about .check-step__details[open] {
  border-color: var(--lake);
  background: rgba(49, 183, 176, .09);
}

.page-about .check-step__summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

.page-about .check-step__summary::-webkit-details-marker {
  display: none;
}

.page-about .check-step__no {
  font-size: 13px;
  color: var(--signal);
  letter-spacing: .06em;
  flex: none;
}

.page-about .check-step__name {
  flex: 1;
  color: var(--text-strong);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -.01em;
}

.page-about .check-step__hint {
  flex: none;
  font-size: 12px;
  color: var(--lake);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  padding: 3px 10px;
  transition: color var(--ease), border-color var(--ease);
}

.page-about .check-step__details[open] .check-step__hint {
  color: var(--ink-night);
  background: var(--lake);
  border-color: var(--lake);
}

.page-about .check-step__body {
  margin: 0;
  padding: 0 18px 18px 45px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--text-body);
}

.page-about .about-check__figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-rail);
}

.page-about .about-check__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.page-about .about-check__figure .media-caption {
  display: block;
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--haze);
}

/* ---------- 更新时间 ---------- */

.page-about .about-cadence {
  position: relative;
  background: var(--ink-night);
  color: var(--text-body);
  padding-block: 8px 84px;
}

.page-about .about-cadence__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  align-items: start;
  border-top: 1px solid var(--line);
  padding-top: 48px;
}

.page-about .about-cadence .display-title {
  color: var(--text-strong);
  margin: 10px 0 18px;
}

.page-about .about-cadence__lede {
  font-size: 16px;
  line-height: 1.74;
  color: var(--text-body);
}

.page-about .about-cadence__body {
  margin-top: 14px;
  font-size: 15px;
  line-height: 1.74;
  color: var(--haze);
}

.page-about .about-cadence__link {
  margin-top: 24px;
}

.page-about .cadence-dial {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-about .cadence-dial__item {
  display: grid;
  gap: 4px;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: var(--ink-rail);
  transition: border-color var(--ease), transform var(--ease);
}

.page-about .cadence-dial__item:hover {
  border-color: var(--line-strong);
  transform: translateX(3px);
}

.page-about .cadence-dial__time {
  font-size: clamp(20px, 3.4vw, 26px);
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--text-strong);
}

.page-about .cadence-dial__label {
  font-size: 14px;
  color: var(--lake-soft);
}

.page-about .cadence-dial__note {
  font-size: 12.5px;
  color: var(--haze);
}

.page-about .cadence-dial__item--main {
  background: rgba(49, 183, 176, .12);
  border-color: var(--line-strong);
}

.page-about .cadence-dial__item--main .cadence-dial__time {
  color: var(--lake);
}

.page-about .cadence-dial__item--signal {
  background: rgba(255, 123, 63, .1);
  border-color: rgba(255, 123, 63, .4);
}

.page-about .cadence-dial__item--signal .cadence-dial__time {
  color: var(--signal);
  font-size: clamp(17px, 3vw, 21px);
}

/* ---------- 服务规模 ---------- */

.page-about .about-scale {
  background: var(--ink-night);
  color: var(--text-body);
  padding-block: 8px 84px;
}

.page-about .about-scale__head {
  max-width: 42em;
  margin-bottom: 32px;
}

.page-about .about-scale__head .display-title {
  color: var(--text-strong);
  margin: 10px 0 0;
}

.page-about .scale-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-about .about-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px;
  transition: transform var(--ease), box-shadow var(--ease);
}

.page-about .about-stat:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 36px -24px rgba(0, 0, 0, .8);
}

.page-about .about-stat .stat-value {
  font-size: clamp(26px, 5.4vw, 44px);
  font-weight: 700;
  letter-spacing: -.03em;
  line-height: 1;
  color: var(--ink-night);
}

.page-about .about-stat__unit {
  font-size: .46em;
  font-weight: 700;
  margin-left: 3px;
  letter-spacing: 0;
}

.page-about .about-stat .stat-label {
  font-size: 13.5px;
  font-weight: 700;
  color: #2a3446;
}

.page-about .about-stat__note {
  font-size: 12.5px;
  line-height: 1.55;
  color: #67748b;
  opacity: .55;
  transition: opacity var(--ease), color var(--ease);
}

.page-about .about-stat:hover .about-stat__note,
.page-about .about-stat:focus-within .about-stat__note {
  opacity: 1;
  color: var(--lake);
}

.page-about .about-scale__foot {
  margin-top: 22px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--haze);
  max-width: 40em;
}

/* ---------- 荣誉 ---------- */

.page-about .about-honor {
  background: var(--ink-night);
  color: var(--text-body);
  padding-block: 8px 84px;
}

.page-about .about-honor__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
  border-top: 1px solid var(--line);
  padding-top: 48px;
}

.page-about .about-honor .display-title {
  color: var(--text-strong);
  margin: 10px 0 16px;
}

.page-about .about-honor__lede {
  font-size: 16px;
  line-height: 1.74;
  color: var(--text-body);
}

.page-about .honor-wall {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-about .honor-tile {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 16px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: var(--ink-rail);
  transition: border-color var(--ease), transform var(--ease);
}

.page-about .honor-tile:hover {
  border-color: var(--line-strong);
  transform: translateY(-3px);
}

.page-about .honor-tile--wide {
  grid-column: span 2;
}

.page-about .honor-tile--tall {
  grid-row: span 2;
  justify-content: space-between;
  background: linear-gradient(165deg, rgba(49, 183, 176, .16), rgba(18, 35, 74, .9));
}

.page-about .honor-tile--accent {
  background: rgba(255, 123, 63, .1);
  border-color: rgba(255, 123, 63, .36);
}

.page-about .honor-tile__year {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--lake);
}

.page-about .honor-tile__num {
  font-size: clamp(28px, 5vw, 40px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--text-strong);
}

.page-about .honor-tile--accent .honor-tile__num {
  color: var(--signal);
}

.page-about .honor-tile__name {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--text-body);
}

/* ---------- 结尾 ---------- */

.page-about .about-next {
  background: var(--ink-night);
  color: var(--text-body);
  padding-block: 8px 88px;
}

.page-about .about-next__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: center;
  border-top: 1px solid var(--line);
  padding-top: 44px;
}

.page-about .about-next .display-title {
  color: var(--text-strong);
  margin: 10px 0 12px;
}

.page-about .about-next__lede {
  font-size: 15px;
  line-height: 1.72;
  color: var(--haze);
  max-width: 34em;
}

.page-about .about-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 断点 ---------- */

@media (min-width: 720px) {
  .page-about .about-hero {
    padding-block: 34px 96px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: 1.1fr .9fr;
    gap: 44px;
  }

  .page-about .about-timeline__list {
    gap: 18px;
  }

  .page-about .about-team__grid {
    grid-template-columns: 1.15fr .85fr;
    gap: 40px;
  }

  .page-about .shift-row {
    grid-template-columns: 14px minmax(72px, auto) 1fr;
    grid-template-areas:
      "light name time"
      "light desc desc";
    align-items: center;
    column-gap: 14px;
  }

  .page-about .about-check__grid {
    grid-template-columns: 1.2fr .8fr;
    gap: 34px;
  }

  .page-about .about-cadence__grid {
    grid-template-columns: 1.05fr .95fr;
    gap: 40px;
  }

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

  .page-about .cadence-dial__item--signal {
    grid-column: span 2;
  }

  .page-about .scale-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

  .page-about .about-honor__grid {
    grid-template-columns: .9fr 1.1fr;
    gap: 40px;
  }

  .page-about .about-next__inner {
    grid-template-columns: 1fr auto;
    gap: 32px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-timeline__layout {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 48px;
  }

  .page-about .about-timeline__rail {
    display: block;
    align-self: start;
    position: sticky;
    top: 110px;
  }

  .page-about .tl-item {
    display: grid;
    grid-template-columns: 110px minmax(0, 1fr);
    column-gap: 24px;
    align-items: start;
    padding: 26px 28px 28px;
  }

  .page-about .tl-item__year {
    grid-row: span 2;
    font-size: 46px;
    padding-top: 2px;
  }

  .page-about .tl-item__title {
    margin-top: 0;
  }

  .page-about .about-hero__figure {
    margin-top: 8px;
  }

  .page-about .about-honor__grid {
    grid-template-columns: .85fr 1.15fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .tl-item,
  .page-about .about-stat,
  .page-about .honor-tile,
  .page-about .cadence-dial__item,
  .page-about .about-hero__alert {
    transition: none;
  }

  .page-about .tl-item:hover,
  .page-about .about-stat:hover,
  .page-about .honor-tile:hover,
  .page-about .cadence-dial__item:hover,
  .page-about .about-hero__alert:hover {
    transform: none;
  }
}
<<<END>>>