.page-about {
  --about-panel: rgba(18, 42, 64, 0.62);
  --about-index-w: 200px;
  color: var(--cmd-fog);
  padding-bottom: clamp(40px, 7vw, 88px);
}

.page-about [id] {
  scroll-margin-top: 96px;
}

/* ---------- 首屏 ---------- */
.page-about .about-top {
  padding-block: clamp(18px, 3vw, 32px) clamp(30px, 5vw, 56px);
  border-bottom: 1px solid var(--cmd-line-soft);
  background:
    radial-gradient(120% 90% at 88% 0%, var(--cmd-cyan-14), transparent 58%),
    radial-gradient(90% 70% at 0% 100%, var(--cmd-orange-14), transparent 62%);
}

.page-about .about-hero {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(18px, 3vw, 32px);
}

.page-about .about-hero__title {
  font-family: var(--cmd-font-display);
  font-size: clamp(30px, 6.4vw, 54px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 800;
  margin: 12px 0 18px;
  color: var(--cmd-fog);
}

.page-about .about-hero__title em {
  font-style: normal;
  color: var(--cmd-cyan);
}

.page-about .about-hero__lede {
  margin: 0;
  max-width: 46ch;
  color: var(--cmd-body);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
}

.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 16px;
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-about .about-stats__item {
  border-top: 1px solid var(--cmd-cyan-45);
  padding-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-about .about-stats__num {
  font-family: var(--cmd-font-mono);
  font-size: clamp(22px, 3.2vw, 30px);
  font-weight: 700;
  color: var(--cmd-fog);
  letter-spacing: -0.01em;
}

.page-about .about-stats__label {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cmd-mute);
}

.page-about .about-hero__panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--cmd-line);
  border-radius: var(--cmd-radius);
  padding: 18px 16px 16px;
  background-color: var(--about-panel);
  background-image:
    linear-gradient(to right, rgba(30, 58, 87, 0.5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(30, 58, 87, 0.5) 1px, transparent 1px);
  background-size: 40px 40px, 40px 40px;
}

.page-about .about-hero__panel::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 120px;
  background: linear-gradient(180deg, var(--cmd-cyan-14), transparent);
  animation: about-scan 8s linear infinite;
  pointer-events: none;
}

@keyframes about-scan {
  from { transform: translateY(-120px); }
  to { transform: translateY(460px); }
}

.page-about .about-hero__panel-title {
  position: relative;
  z-index: 1;
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cmd-mute);
}

.page-about .about-hero__panel-title .cmd-num {
  color: var(--cmd-orange);
  margin-right: 6px;
}

.page-about .about-route {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-about .about-route__item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 11px 8px;
  border-radius: var(--cmd-radius-sm);
  border-bottom: 1px solid rgba(30, 58, 87, 0.55);
  transition: background var(--cmd-fast) var(--cmd-ease), transform var(--cmd-fast) var(--cmd-ease);
}

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

.page-about .about-route__item:hover {
  background: var(--cmd-cyan-08);
  transform: translateX(2px);
}

.page-about .about-route__coord {
  font-family: var(--cmd-font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--cmd-cyan);
  border: 1px solid var(--cmd-cyan-45);
  border-radius: 4px;
  padding: 2px 0;
  text-align: center;
}

.page-about .about-route__name {
  font-size: 15px;
  color: var(--cmd-fog);
}

.page-about .about-route__meta {
  font-family: var(--cmd-font-mono);
  font-size: 11px;
  color: var(--cmd-mute);
  white-space: nowrap;
}

.page-about .about-hero__panel-foot {
  position: relative;
  z-index: 1;
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--cmd-line-soft);
  font-size: 13px;
  line-height: 1.7;
  color: var(--cmd-mute);
}

.page-about .about-hero__panel-foot a {
  color: var(--cmd-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cmd-cyan-45);
}

/* ---------- 发展历程横带 ---------- */
.page-about .about-band {
  border-bottom: 1px solid var(--cmd-line);
  background: linear-gradient(180deg, rgba(11, 27, 45, 0.92), rgba(6, 17, 31, 0.96));
  padding-block: clamp(36px, 6vw, 68px);
}

.page-about .about-band__head {
  max-width: 62ch;
  margin-bottom: 22px;
}

.page-about .about-band__title {
  font-family: var(--cmd-font-display);
  font-size: clamp(24px, 4vw, 40px);
  line-height: 1.16;
  letter-spacing: -0.015em;
  font-weight: 800;
  margin: 10px 0 12px;
  color: var(--cmd-fog);
}

.page-about .about-band__lede {
  margin: 0;
  color: var(--cmd-body);
  font-size: 15px;
  line-height: 1.8;
}

.page-about .about-band__chips {
  margin-bottom: 20px;
}

.page-about .about-timeline {
  display: flex;
  gap: 14px;
  list-style: none;
  margin: 0;
  padding: 4px 0 14px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-timeline__item {
  flex: 0 0 clamp(228px, 62vw, 292px);
  scroll-snap-align: start;
  position: relative;
  padding: 16px 14px 18px;
  border-radius: 0 0 var(--cmd-radius-sm) var(--cmd-radius-sm);
  border-top: 2px solid var(--cmd-cyan);
  background: linear-gradient(180deg, rgba(18, 42, 64, 0.72), rgba(11, 27, 45, 0.35));
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--cmd-orange);
  box-shadow: 0 0 0 3px rgba(255, 138, 61, 0.18);
}

.page-about .about-timeline__item[hidden] {
  display: none;
}

.page-about .about-timeline__year {
  display: block;
  font-family: var(--cmd-font-mono);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--cmd-cyan);
}

.page-about .about-timeline__name {
  margin: 8px 0 8px;
  font-family: var(--cmd-font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--cmd-fog);
}

.page-about .about-timeline__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--cmd-body);
}

.page-about .about-band__figure {
  margin: clamp(22px, 4vw, 34px) 0 0;
}

/* ---------- 主体两栏 ---------- */
.page-about .about-body {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  padding-top: clamp(32px, 6vw, 64px);
}

.page-about .about-side__title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cmd-mute);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--cmd-line);
}

.page-about .about-side__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
}

.page-about .about-side__list a {
  display: inline-block;
  padding: 4px 0;
  font-size: 14px;
  color: var(--cmd-body);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--cmd-fast) var(--cmd-ease), border-color var(--cmd-fast) var(--cmd-ease);
}

.page-about .about-side__list a:hover,
.page-about .about-side__list a:focus-visible {
  color: var(--cmd-cyan);
  border-bottom-color: var(--cmd-cyan-45);
}

.page-about .about-block {
  padding-bottom: clamp(30px, 5vw, 52px);
  margin-bottom: clamp(30px, 5vw, 52px);
  border-bottom: 1px solid var(--cmd-line-soft);
}

.page-about .about-block:last-of-type {
  border-bottom: 0;
}

.page-about .about-block__title {
  font-family: var(--cmd-font-serif);
  font-size: clamp(21px, 3.2vw, 29px);
  line-height: 1.35;
  font-weight: 600;
  margin: 10px 0 12px;
  color: var(--cmd-fog);
  letter-spacing: 0.01em;
}

.page-about .about-block__lede {
  margin: 0 0 22px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--cmd-body);
}

.page-about .about-block__link {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--cmd-mute);
}

.page-about .about-block__link a {
  color: var(--cmd-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cmd-cyan-45);
}

/* ---------- 入口卡片 ---------- */
.page-about .about-cards {
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(0, 1fr);
}

.page-about .about-cards__item {
  position: relative;
  border: 1px solid var(--cmd-line);
  border-left: 2px solid var(--cmd-line);
  border-radius: var(--cmd-radius-sm);
  background: var(--cmd-ink-2);
  padding: 16px 16px 18px;
  transition: border-color var(--cmd-fast) var(--cmd-ease), background var(--cmd-fast) var(--cmd-ease);
}

.page-about .about-cards__item:hover {
  border-left-color: var(--cmd-cyan);
  background: rgba(18, 42, 64, 0.82);
}

.page-about .about-cards__coord {
  font-family: var(--cmd-font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cmd-orange);
}

.page-about .about-cards__name {
  margin: 6px 0 8px;
  font-family: var(--cmd-font-display);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--cmd-fog);
}

.page-about .about-cards__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--cmd-body);
}

/* ---------- 团队分工 ---------- */
.page-about .about-team {
  display: grid;
  gap: 20px;
}

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

.page-about .about-team__card {
  position: relative;
  border: 1px solid var(--cmd-line);
  border-radius: var(--cmd-radius-sm);
  background: var(--cmd-ink-2);
  padding: 15px 15px 16px;
  transition: border-color var(--cmd-fast) var(--cmd-ease), background var(--cmd-fast) var(--cmd-ease);
  outline: none;
}

.page-about .about-team__card::after {
  content: "";
  position: absolute;
  top: 14px;
  right: 14px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cmd-star, var(--cmd-line));
  transition: background var(--cmd-fast) var(--cmd-ease);
}

.page-about .about-team__card:hover,
.page-about .about-team__card:focus,
.page-about .about-team__card:focus-within {
  border-color: var(--cmd-cyan);
  background: rgba(18, 42, 64, 0.86);
}

.page-about .about-team__card:hover::after,
.page-about .about-team__card:focus::after {
  background: var(--cmd-green);
}

.page-about .about-team__card:focus-visible {
  box-shadow: 0 0 0 2px var(--cmd-orange);
}

.page-about .about-team__count {
  display: inline-block;
  font-family: var(--cmd-font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--cmd-cyan);
}

.page-about .about-team__role {
  margin: 8px 0 4px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--cmd-fog);
}

.page-about .about-team__brief {
  margin: 0;
  font-size: 13px;
  color: var(--cmd-mute);
}

.page-about .about-team__more {
  margin: 0;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  font-size: 13px;
  line-height: 1.75;
  color: var(--cmd-body);
  border-top: 1px solid transparent;
  transition: max-height var(--cmd-mid) var(--cmd-ease), opacity var(--cmd-mid) var(--cmd-ease),
    margin var(--cmd-mid) var(--cmd-ease), padding var(--cmd-mid) var(--cmd-ease);
}

.page-about .about-team__card:hover .about-team__more,
.page-about .about-team__card:focus .about-team__more,
.page-about .about-team__card:focus-within .about-team__more {
  max-height: 240px;
  opacity: 1;
  margin-top: 12px;
  padding-top: 10px;
  border-top-color: var(--cmd-line);
}

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

/* ---------- 更新机制 ---------- */
.page-about .about-mech {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--cmd-line);
}

.page-about .about-mech__row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--cmd-line-soft);
  transition: background var(--cmd-fast) var(--cmd-ease);
}

.page-about .about-mech__row:hover {
  background: var(--cmd-cyan-08);
}

.page-about .about-mech__key {
  font-family: var(--cmd-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cmd-orange);
}

.page-about .about-mech__val {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--cmd-body);
}

/* ---------- 服务地区 ---------- */
.page-about .about-service {
  display: grid;
  gap: 20px;
}

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

.page-about .about-service__body p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--cmd-body);
}

.page-about .about-service__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-service__list li {
  position: relative;
  padding: 10px 12px 10px 14px;
  border-left: 2px solid var(--cmd-cyan-45);
  background: rgba(18, 42, 64, 0.45);
  border-radius: 0 var(--cmd-radius-sm) var(--cmd-radius-sm) 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--cmd-body);
}

.page-about .about-service__list strong {
  display: block;
  margin-bottom: 2px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--cmd-fog);
}

.page-about .about-service__list .cmd-num {
  font-family: var(--cmd-font-mono);
  color: var(--cmd-cyan);
}

.page-about .about-service__more {
  margin-top: 14px !important;
  font-size: 14px;
  color: var(--cmd-mute) !important;
}

.page-about .about-service__more a {
  color: var(--cmd-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cmd-cyan-45);
}

/* ---------- 资质 ---------- */
.page-about .about-cred {
  border-top: 1px solid var(--cmd-line);
}

.page-about .about-cred__item {
  border-bottom: 1px solid var(--cmd-line-soft);
}

.page-about .about-cred__item summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 15px 4px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  color: var(--cmd-fog);
  transition: color var(--cmd-fast) var(--cmd-ease), background var(--cmd-fast) var(--cmd-ease);
}

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

.page-about .about-cred__item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--cmd-font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cmd-cyan);
}

.page-about .about-cred__item[open] summary::after {
  content: "−";
  color: var(--cmd-orange);
}

.page-about .about-cred__item summary:hover {
  color: var(--cmd-cyan);
}

.page-about .about-cred__item summary:focus-visible {
  outline: 2px solid var(--cmd-orange);
  outline-offset: 2px;
}

.page-about .about-cred__idx {
  font-family: var(--cmd-font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cmd-orange);
}

.page-about .about-cred__text {
  margin: 0;
  padding: 0 4px 16px 40px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--cmd-body);
}

/* ---------- 下一步 ---------- */
.page-about .about-next {
  border: 1px solid var(--cmd-line);
  border-radius: var(--cmd-radius);
  padding: clamp(20px, 4vw, 32px);
  background:
    linear-gradient(135deg, var(--cmd-cyan-14), transparent 55%),
    rgba(11, 27, 45, 0.9);
}

.page-about .about-next__title {
  margin: 0 0 18px;
  font-family: var(--cmd-font-display);
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--cmd-fog);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-about .about-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-about .about-team__cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-mech__row {
    grid-template-columns: 128px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
    padding: 16px 8px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }

  .page-about .about-service {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    align-items: start;
    gap: 28px;
  }
}

@media (min-width: 960px) {
  .page-about .about-body {
    grid-template-columns: var(--about-index-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-side {
    position: sticky;
    top: 92px;
  }

  .page-about .about-side__list {
    flex-direction: column;
    gap: 2px;
  }

  .page-about .about-side__list a {
    display: block;
    padding: 7px 0 7px 12px;
    border-left: 2px solid var(--cmd-line);
    border-bottom: 0;
  }

  .page-about .about-side__list a:hover,
  .page-about .about-side__list a:focus-visible {
    border-left-color: var(--cmd-cyan);
    border-bottom-color: transparent;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-hero__panel::after {
    animation: none;
    opacity: 0.35;
  }

  .page-about .about-team__card,
  .page-about .about-team__more,
  .page-about .about-route__item,
  .page-about .about-cards__item {
    transition: none;
  }
}
<<<PAGE_CSS_END>>>

.page-about {
  --cmd-star: transparent;
}