.page-about {
  --about-edge: rgba(140, 133, 119, 0.24);
  --about-card: rgba(30, 58, 95, 0.46);
  --about-soft: rgba(239, 233, 220, 0.78);
  color: var(--paper);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-about .about-crumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--stone);
}

.page-about .about-crumb a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, 0.35);
  padding-bottom: 1px;
}

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

.page-about .about-crumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--stone);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 92px 0 104px;
  display: flex;
  align-items: flex-end;
}

.page-about .about-hero__frame {
  position: absolute;
  inset: 0;
  z-index: -3;
}

.page-about .about-hero__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 38%;
  filter: saturate(0.66) contrast(1.06) brightness(0.86);
  display: block;
}

.page-about .about-hero__veil {
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(100deg, rgba(11, 27, 51, 0.95) 0%, rgba(11, 27, 51, 0.62) 48%, rgba(11, 27, 51, 0.88) 100%),
    linear-gradient(180deg, rgba(11, 27, 51, 0.4) 0%, rgba(11, 27, 51, 0.1) 30%, var(--deep) 100%);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 58px;
  background: var(--deep);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
}

.page-about .about-hero__body {
  position: relative;
  z-index: 1;
  width: 100%;
}

.page-about .about-hero__title {
  font-family: var(--font-cond);
  font-weight: 700;
  font-size: clamp(30px, 6.4vw, 66px);
  line-height: 1.08;
  letter-spacing: 0.015em;
  margin: 0 0 24px;
  max-width: 18ch;
  color: var(--paper);
}

.page-about .about-hero__lead {
  max-width: 640px;
  margin: 0 0 30px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--about-soft);
}

.page-about .about-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--about-edge);
  padding-top: 18px;
  max-width: 720px;
}

.page-about .about-hero__meta li {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--stone);
  padding-right: 18px;
  margin-right: 18px;
  border-right: 1px solid var(--about-edge);
  line-height: 1.4;
}

.page-about .about-hero__meta li:last-child {
  border-right: 0;
  margin-right: 0;
  padding-right: 0;
}

/* ---------- 通用段落 ---------- */
.page-about .about-lead {
  max-width: 680px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--about-soft);
  margin: 0 0 40px;
}

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

.page-about section {
  padding: 76px 0;
}

.page-about .section-title {
  max-width: 22ch;
  margin: 0 0 28px;
}

/* ---------- 业务主线 ---------- */
.page-about .about-lines-section {
  background:
    radial-gradient(760px 380px at 88% 0%, rgba(34, 211, 238, 0.07), transparent 62%),
    var(--deep);
}

.page-about .about-lines {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-about .about-line {
  position: relative;
  padding: 26px 24px 28px;
  background: var(--about-card);
  border: 1px solid var(--about-edge);
  box-shadow: 6px 6px 0 0 rgba(201, 111, 74, 0.13);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-about .about-line:hover {
  transform: translateY(-4px);
  border-color: rgba(34, 211, 238, 0.5);
}

.page-about .about-line__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--clay);
  margin-bottom: 14px;
}

.page-about .about-line h3 {
  font-family: var(--font-cond);
  font-weight: 700;
  font-size: 22px;
  line-height: 1.3;
  letter-spacing: 0.02em;
  margin: 0 0 12px;
  color: var(--paper);
}

.page-about .about-line p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--about-soft);
}

/* ---------- 赛季覆盖 ---------- */
.page-about .about-scale {
  background: var(--rail);
}

.page-about .about-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--about-edge);
  border: 1px solid var(--about-edge);
}

.page-about .about-metric {
  background: var(--deep);
  padding: 24px 18px 22px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px;
}

.page-about .about-metric:nth-child(3n) {
  background: rgba(30, 58, 95, 0.5);
}

.page-about .about-metric__num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(38px, 9vw, 54px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--lime);
}

.page-about .about-metric__plus {
  font-size: 0.62em;
  color: var(--cyan);
  margin-left: 2px;
}

.page-about .about-metric__unit {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--cyan);
  letter-spacing: 0.04em;
}

.page-about .about-metric--time .about-metric__num {
  color: var(--orange);
}

.page-about .about-metric p {
  flex: 1 0 100%;
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--stone);
  border-top: 1px solid var(--about-edge);
  padding-top: 10px;
}

/* ---------- 发展历程 ---------- */
.page-about .about-history__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 44px;
}

.page-about .about-tl {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 34px;
}

.page-about .about-tl::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, var(--orange) 0%, rgba(255, 122, 61, 0.42) 62%, rgba(255, 122, 61, 0.1) 100%);
}

.page-about .about-tl__item {
  position: relative;
  padding-bottom: 34px;
}

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

.page-about .about-tl__item::before {
  content: "";
  position: absolute;
  left: -34px;
  top: 8px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  border: 2px solid var(--orange);
  background: var(--deep);
  box-shadow: 0 0 0 4px rgba(255, 122, 61, 0.12);
}

.page-about .about-tl__item--now::before {
  border-color: var(--lime);
  box-shadow: 0 0 0 4px rgba(57, 255, 136, 0.16);
}

.page-about .about-tl__year {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 24px;
  letter-spacing: 0.06em;
  color: var(--orange);
  margin-bottom: 8px;
}

.page-about .about-tl__item--now .about-tl__year {
  font-size: 17px;
  letter-spacing: 0.1em;
  color: var(--lime);
}

.page-about .about-tl__card h3 {
  font-family: var(--font-cond);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.35;
  margin: 0 0 8px;
  color: var(--paper);
}

.page-about .about-tl__card p {
  margin: 0;
  max-width: 560px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--about-soft);
}

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

.page-about .about-history__figure img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--about-edge);
  box-shadow: 8px 8px 0 0 rgba(201, 111, 74, 0.14);
}

.page-about .about-history__figure figcaption {
  margin-top: 14px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--stone);
  max-width: 44ch;
}

/* ---------- 团队构成 ---------- */
.page-about .about-team {
  background: var(--rail);
}

.page-about .about-team__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 38px;
  align-items: start;
}

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

.page-about .about-ring {
  width: 100%;
  max-width: 300px;
  height: auto;
  display: block;
  margin: 0 auto;
}

.page-about .about-ring__track {
  stroke: rgba(140, 133, 119, 0.28);
}

.page-about .about-ring__seg {
  stroke-linecap: butt;
}

.page-about .about-ring__seg--content {
  stroke: var(--cyan);
}

.page-about .about-ring__seg--data {
  stroke: var(--lime);
}

.page-about .about-ring__seg--client {
  stroke: var(--orange);
}

.page-about .about-ring__seg--support {
  stroke: var(--clay);
}

.page-about .about-ring__total {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 34px;
  fill: var(--paper);
}

.page-about .about-ring__cap {
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 0.18em;
  fill: var(--stone);
}

.page-about .about-team__chart figcaption {
  margin-top: 16px;
  text-align: center;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--stone);
}

.page-about .about-team__list {
  border-top: 1px solid var(--about-edge);
}

.page-about .about-team__item {
  border-bottom: 1px solid var(--about-edge);
}

.page-about .about-team__item summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}

.page-about .about-team__item summary::-webkit-details-marker {
  display: none;
}

.page-about .about-team__name {
  font-family: var(--font-cond);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: 0.02em;
  color: var(--paper);
  position: relative;
  padding-left: 22px;
}

.page-about .about-team__name::before {
  content: "+";
  position: absolute;
  left: 0;
  top: -1px;
  font-family: var(--font-mono);
  color: var(--cyan);
  font-size: 18px;
}

.page-about .about-team__item[open] .about-team__name::before {
  content: "−";
  color: var(--lime);
}

.page-about .about-team__count {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 600;
  color: var(--lime);
  white-space: nowrap;
}

.page-about .about-team__detail {
  padding: 0 0 20px 22px;
}

.page-about .about-team__detail p {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--about-soft);
}

.page-about .about-team__media {
  margin: 46px 0 0;
  max-width: 720px;
}

.page-about .about-team__media img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  border: 1px solid var(--about-edge);
}

.page-about .about-team__media figcaption {
  margin-top: 14px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--stone);
  max-width: 52ch;
}

/* ---------- 数据能力 ---------- */
.page-about .about-spec {
  margin: 0;
  border-top: 1px solid var(--about-edge);
}

.page-about .about-spec__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 22px 0;
  border-bottom: 1px solid var(--about-edge);
}

.page-about .about-spec__row dt {
  font-family: var(--font-cond);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  position: relative;
  padding-left: 18px;
}

.page-about .about-spec__row dt::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 10px;
  height: 1px;
  background: var(--cyan);
}

.page-about .about-spec__row dd {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--about-soft);
}

/* ---------- 合作与沉淀 ---------- */
.page-about .about-ecosystem {
  background:
    radial-gradient(620px 320px at 8% 100%, rgba(57, 255, 136, 0.08), transparent 62%),
    var(--deep);
}

.page-about .about-badges {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 34px;
}

.page-about .about-badge {
  padding: 24px 22px;
  border: 1px solid var(--about-edge);
  background: rgba(30, 58, 95, 0.38);
  border-left: 3px solid var(--moss);
}

.page-about .about-badge__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 44px;
  line-height: 1;
  color: var(--lime);
  letter-spacing: -0.02em;
}

.page-about .about-badge__label {
  display: block;
  margin-top: 8px;
  font-family: var(--font-cond);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.06em;
  color: var(--paper);
}

.page-about .about-badge p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--stone);
}

.page-about .about-ecosystem__note {
  max-width: 680px;
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--about-soft);
}

/* ---------- 本地服务 ---------- */
.page-about .about-local__panel {
  padding: 38px clamp(20px, 4vw, 46px) 42px;
  background: rgba(47, 122, 92, 0.14);
  border: 1px solid var(--about-edge);
}

.page-about .about-local__panel .section-title--sm {
  max-width: 24ch;
  margin-bottom: 20px;
}

.page-about .about-local__panel p {
  max-width: 680px;
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--about-soft);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-about section {
    padding: 96px 0;
  }

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

  .page-about .about-metric {
    padding: 28px 22px 24px;
  }

  .page-about .about-badges {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-about .about-spec__row {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
  }

  .page-about .about-hero {
    padding: 116px 0 128px;
    min-height: 78vh;
  }

  .page-about .about-lines {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 22px;
  }

  .page-about .about-line:nth-child(1) {
    grid-column: 1 / 8;
  }

  .page-about .about-line:nth-child(2) {
    grid-column: 8 / 13;
    margin-top: 54px;
  }

  .page-about .about-line:nth-child(3) {
    grid-column: 1 / 6;
  }

  .page-about .about-line:nth-child(4) {
    grid-column: 6 / 13;
    margin-top: 22px;
  }
}

@media (min-width: 1040px) {
  .page-about .about-team__layout {
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
    gap: 56px;
  }

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

  .page-about .about-team__chart figcaption {
    text-align: left;
  }

  .page-about .about-team__media {
    max-width: 760px;
  }

  .page-about .about-history__layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 380px);
    gap: 60px;
    align-items: start;
  }

  .page-about .about-history__figure {
    position: sticky;
    top: 96px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-line,
  .page-about .about-line:hover {
    transition: none;
    transform: none;
  }
}
<<<END>>>