.page-about {
  --about-sec: clamp(56px, 9vw, 104px);
  --about-panel: rgba(7, 26, 21, .6);
  --about-muted: rgba(242, 232, 213, .72);
  --about-body: rgba(242, 232, 213, .88);
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(104px, 15vw, 152px) var(--gutter) clamp(64px, 9vw, 96px);
  color: var(--c-cream);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
}

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

.page-about .num {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: .01em;
  font-variant-numeric: tabular-nums;
}

.page-about a {
  color: var(--c-teal);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 191, 155, .38);
  transition: color .25s var(--ease), border-color .25s var(--ease);
}

.page-about a:hover,
.page-about a:focus-visible {
  color: var(--c-sand);
  border-bottom-color: rgba(217, 179, 106, .8);
}

/* ---------- 面包屑 ---------- */

.page-about .breadcrumb {
  margin: 0 0 clamp(28px, 5vw, 46px);
}

.page-about .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .08em;
  color: var(--about-muted);
}

.page-about .breadcrumb__list li + li::before {
  content: "/";
  margin-right: 12px;
  color: rgba(110, 139, 132, .7);
}

/* ---------- 首屏声明 ---------- */

.about-head {
  max-width: 980px;
  padding-top: clamp(18px, 3vw, 28px);
  border-top: var(--hair-sand);
}

.about-head__kicker {
  margin: 0;
  color: var(--c-sand);
}

.about-head__title {
  margin: 14px 0 0;
  font-size: clamp(30px, 6vw, 54px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: .01em;
  color: var(--c-cream);
}

.about-head__deck {
  margin: clamp(18px, 3vw, 26px) 0 0;
  max-width: 66ch;
  font-size: clamp(16px, 1.8vw, 18px);
  line-height: 1.9;
  color: var(--about-body);
}

.about-head__deck .num {
  color: var(--c-sand);
}

/* ---------- 统计条 ---------- */

.about-figures {
  margin-top: clamp(34px, 6vw, 56px);
  border-top: var(--hair);
  border-bottom: var(--hair);
}

.about-figures__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  margin: 0;
  padding: 0;
  list-style: none;
}

.about-figures__item {
  padding: 20px 0;
  border-bottom: var(--hair);
}

.about-figures__item:last-child {
  border-bottom: 0;
}

.about-figures__n {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4.6vw, 36px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--c-sand);
  font-variant-numeric: tabular-nums;
}

.about-figures__u {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--c-cream);
}

.about-figures__d {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.72;
  color: var(--about-muted);
}

@media (min-width: 640px) {
  .about-figures__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .about-figures__item {
    padding: 22px 24px 22px 0;
    border-bottom: var(--hair);
  }

  .about-figures__item:nth-child(even) {
    padding-left: 24px;
    border-left: var(--hair);
  }
}

@media (min-width: 1024px) {
  .about-figures__list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .about-figures__item,
  .about-figures__item:nth-child(even) {
    padding: 24px 20px;
    border-bottom: 0;
    border-left: var(--hair);
  }

  .about-figures__item:first-child {
    padding-left: 0;
    border-left: 0;
  }

  .about-figures__item:last-child {
    padding-right: 0;
  }
}

/* ---------- 通用区块骨架 ---------- */

.page-about .section-head {
  margin-bottom: clamp(14px, 2.4vw, 22px);
}

.page-about .section-head__index {
  margin: 0;
  color: var(--c-sand);
}

.page-about .section-head__title {
  margin: 10px 0 0;
  font-size: clamp(23px, 3.6vw, 34px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--c-cream);
}

.page-about .section-head__title .num {
  color: var(--c-orange);
}

.about-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  margin-top: var(--about-sec);
  padding-top: clamp(22px, 3vw, 34px);
  border-top: var(--hair);
}

.about-block__prose > p {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--about-body);
}

.about-block__prose > .section-head + p {
  margin-top: 0;
}

.about-block__lead {
  margin: 0 0 clamp(20px, 3vw, 28px) !important;
}

.about-block--single {
  max-width: 900px;
}

@media (min-width: 1024px) {
  .about-block {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .about-block__aside {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    align-self: start;
  }

  .about-block--flip .about-block__prose {
    order: 2;
  }

  .about-block--flip .about-block__aside {
    order: 1;
  }

  .about-block--single {
    grid-template-columns: minmax(0, 1fr);
  }
}

.about-block__aside .media-frame {
  border: var(--hair);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--about-panel);
}

.about-aside__note {
  margin: 14px 0 0;
  padding-left: 14px;
  border-left: 1px solid rgba(217, 179, 106, .4);
  font-size: 13px;
  line-height: 1.8;
  color: var(--about-muted);
}

/* ---------- 三类资料 ---------- */

.about-sub {
  margin-top: 22px;
  padding-left: 18px;
  border-left: 2px solid rgba(217, 179, 106, .38);
}

.about-sub__label {
  margin: 0 0 6px;
  color: var(--c-sand);
  letter-spacing: .14em;
}

.about-sub__text {
  margin: 0;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.88;
  color: var(--about-body);
}

.about-sub__text .num,
.about-block__prose > p .num {
  color: var(--c-sand);
}

.about-sports {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: clamp(24px, 4vw, 34px) 0 0;
  padding: 0;
  list-style: none;
}

.about-sports__item {
  position: relative;
  padding: 7px 14px 7px 26px;
  border: var(--hair);
  border-radius: var(--radius);
  background: rgba(110, 139, 132, .06);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: .06em;
  color: var(--about-muted);
  transition: color .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
}

.about-sports__item::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 50%;
  width: 6px;
  height: 6px;
  margin-top: -3px;
  border: 1px solid var(--c-sand);
  border-radius: 50%;
  transition: background .25s var(--ease), border-color .25s var(--ease);
}

.about-sports__item:hover,
.about-sports__item:focus-visible {
  color: var(--c-cream);
  border-color: rgba(217, 179, 106, .62);
  background: rgba(217, 179, 106, .08);
}

.about-sports__item:hover::before,
.about-sports__item:focus-visible::before {
  background: var(--c-orange);
  border-color: var(--c-orange);
}

/* ---------- 四道工序 ---------- */

.about-steps {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
}

.about-steps__item {
  position: relative;
  padding: 20px 0 20px 52px;
  border-top: var(--hair);
}

.about-steps__item:last-child {
  border-bottom: var(--hair);
}

.about-steps__index {
  position: absolute;
  left: 0;
  top: 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--c-sand);
}

.about-steps__title {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--c-cream);
}

.about-steps__text {
  margin: 8px 0 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.86;
  color: var(--about-body);
}

.about-steps__text .num {
  color: var(--c-sand);
}

.about-flow__media {
  margin-top: clamp(26px, 4vw, 38px);
  border: var(--hair);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--about-panel);
}

/* ---------- 资料卡 ---------- */

.about-card {
  padding: 22px 22px 24px;
  border: var(--hair-sand);
  border-radius: var(--radius);
  background: var(--card-bg);
  box-shadow: var(--shadow-2);
}

.about-card__label {
  margin: 0 0 14px;
  color: var(--c-sand);
  letter-spacing: .14em;
}

.about-card__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(38px, 6vw, 52px);
  font-weight: 700;
  line-height: 1;
  color: var(--c-orange);
  font-variant-numeric: tabular-nums;
}

.about-card__unit {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--about-muted);
}

.about-card__list {
  margin: 18px 0 0;
  padding: 16px 0 0;
  border-top: var(--hair);
  display: grid;
  gap: 10px;
}

.about-card__list > div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 13.5px;
}

.about-card__list dt {
  color: var(--about-muted);
}

.about-card__list dd {
  margin: 0;
  font-weight: 700;
  color: var(--c-cream);
}

.about-card__list dd .num {
  color: var(--c-sand);
}

.about-card__pairs {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
}

.about-card__pairs > li {
  padding-top: 14px;
  border-top: var(--hair);
}

.about-card__pairs > li:first-child {
  padding-top: 0;
  border-top: 0;
}

.about-card__pair-n {
  margin: 0;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--c-cream);
}

.about-card__pair-n .num {
  font-size: 22px;
  color: var(--c-sand);
}

.about-card__desc {
  margin: 6px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: .03em;
  color: var(--about-muted);
}

/* ---------- 团队表 ---------- */

.about-table-wrap {
  margin-top: clamp(20px, 3vw, 28px);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.about-table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  font-size: 14.5px;
}

.about-table caption {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.about-table th,
.about-table td {
  padding: 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: var(--hair);
}

.about-table thead th {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--c-sand);
  border-bottom: var(--hair-sand);
  white-space: nowrap;
}

.about-table tbody th {
  font-weight: 700;
  color: var(--c-cream);
  white-space: nowrap;
}

.about-table tbody td {
  line-height: 1.76;
  color: var(--about-body);
}

.about-table tbody td.num {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--c-sand);
  white-space: nowrap;
}

.about-table tbody tr:nth-child(odd) {
  background: rgba(110, 139, 132, .07);
}

/* ---------- 时间轴 ---------- */

.about-timeline {
  margin-top: clamp(22px, 3vw, 32px);
  padding-left: 14px;
  border-left: var(--hair-sand);
}

.about-node {
  position: relative;
  padding-left: 22px;
}

.about-node::before {
  content: "";
  position: absolute;
  left: -19px;
  top: 30px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--c-abyss);
  border: 1px solid var(--c-sand);
  transition: background .5s var(--ease), border-color .5s var(--ease), box-shadow .5s var(--ease);
}

.about-node[data-revealed]::before {
  background: var(--c-orange);
  border-color: var(--c-orange);
  box-shadow: 0 0 0 4px var(--c-orange-soft);
}

.about-node__head {
  margin: 0;
}

.about-node__trigger {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 18px;
  width: 100%;
  padding: 24px 0 10px;
  background: none;
  border: 0;
  border-top: var(--hair);
  color: var(--c-cream);
  font-family: inherit;
  text-align: left;
  cursor: pointer;
}

.about-node:first-child .about-node__trigger {
  border-top: 0;
}

.about-node__year {
  min-width: 88px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--c-sand);
}

.about-node__title {
  font-size: clamp(16px, 2.2vw, 19px);
  font-weight: 700;
  line-height: 1.5;
  transition: color .25s var(--ease);
}

.about-node__trigger:hover .about-node__title,
.about-node__trigger:focus-visible .about-node__title {
  color: var(--c-sand);
}

.about-node__panel {
  padding: 0 0 22px;
}

.about-node__panel > p {
  margin: 0;
  max-width: 68ch;
  font-size: 15.5px;
  line-height: 1.88;
  color: var(--about-body);
}

.about-node__panel .num {
  color: var(--c-sand);
}

/* ---------- 荣誉 ---------- */

.about-honors {
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
}

.about-honors__item {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  padding: 16px 0;
  border-top: var(--hair);
  border-bottom: var(--hair);
}

.about-honors__year {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--c-orange);
}

.about-honors__text {
  font-size: 15px;
  color: var(--c-cream);
}

/* ---------- 服务地区 ---------- */

.about-service__banner {
  margin: 0 0 clamp(26px, 4vw, 40px);
  border: var(--hair);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--about-panel);
}

/* ---------- 媒体容器兜底 ---------- */

.page-about .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .media-frame__caption {
  padding: 10px 14px 12px;
  font-size: 12.5px;
  letter-spacing: .03em;
  color: var(--about-muted);
  border-top: var(--hair);
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
  }
}
<<<END>>>