.page-about {
  background: var(--forest);
  color: var(--cream);
  font-family: var(--sans);
  --about-gap: clamp(26px, 4vw, 52px);
  --about-pad: clamp(20px, 3vw, 32px);
}

/* ---------- 首屏 ---------- */

.page-about .hero-about {
  position: relative;
  overflow: hidden;
  padding-block: clamp(48px, 8vw, 108px) clamp(40px, 6vw, 88px);
  background-image:
    radial-gradient(120% 95% at 88% 4%, rgba(200, 255, 61, 0.14), transparent 58%),
    repeating-linear-gradient(116deg, rgba(247, 243, 232, 0.05) 0 1px, transparent 1px 48px);
}

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

.page-about .hero-about .breadcrumb {
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-about .hero-about__grid {
  display: grid;
  gap: var(--about-gap);
}

.page-about .hero-about__lead h1 {
  margin: 14px 0 18px;
  max-width: 17ch;
  color: var(--cream);
}

.page-about .hero-about__lead .lede {
  max-width: 56ch;
  color: rgba(247, 243, 232, 0.82);
}

.page-about .hero-about__meta {
  padding: var(--about-pad);
  border-radius: var(--panel-r);
}

.page-about .hero-about__meta-label {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--lime);
}

.page-about .hero-about__stats {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .hero-about__stats li {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--hair);
}

.page-about .hero-about__stats li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-about .hero-about__stats .num {
  font-family: var(--mono);
  font-size: clamp(26px, 4vw, 34px);
  font-weight: 600;
  line-height: 1;
  color: var(--lime);
}

.page-about .hero-about__stat-label {
  font-size: 13px;
  line-height: 1.55;
  color: var(--stone);
}

/* ---------- 沿革 ---------- */

.page-about .sec-origin__grid {
  display: grid;
  gap: var(--about-gap);
}

.page-about .sec-origin__head h2 {
  margin: 12px 0 20px;
  max-width: 22ch;
  color: var(--cream);
}

.page-about .sec-origin__head p {
  margin: 0 0 16px;
  max-width: 60ch;
  line-height: 1.8;
  color: rgba(247, 243, 232, 0.8);
}

.page-about .sec-origin__head p:last-child {
  margin-bottom: 0;
}

.page-about .sec-origin__figure {
  border-radius: var(--panel-r);
}

/* ---------- 时间轴 ---------- */

.page-about .sec-milestones .display-2 {
  margin: 12px 0 0;
  max-width: 24ch;
  color: var(--cream);
}

.page-about .timeline {
  list-style: none;
  margin: clamp(30px, 5vw, 56px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
}

.page-about .timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: clamp(14px, 2vw, 24px);
  align-items: start;
}

.page-about .timeline__item::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 52px;
  bottom: calc(-1 * clamp(18px, 2.6vw, 28px));
  width: 2px;
  background: linear-gradient(180deg, var(--hair), rgba(169, 180, 174, 0.08));
}

.page-about .timeline__item:last-child::before {
  display: none;
}

.page-about .timeline__num {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--forest);
  border: 2px solid var(--lime);
  color: var(--lime);
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
}

.page-about .timeline__body {
  padding: clamp(18px, 2.4vw, 26px);
  border-radius: var(--panel-r);
}

.page-about .timeline__body .tag {
  display: inline-block;
}

.page-about .timeline__body h3 {
  margin: 12px 0 10px;
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: 1.4;
}

.page-about .timeline__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
}

.page-about .timeline__body.panel--solid {
  color: var(--ink);
}

.page-about .timeline__body.panel--solid p {
  color: rgba(22, 24, 26, 0.76);
}

.page-about .timeline__body.panel--moss {
  color: var(--cream);
}

.page-about .timeline__body.panel--moss p {
  color: rgba(247, 243, 232, 0.8);
}

/* ---------- 团队 ---------- */

.page-about .sec-team__head .display-2 {
  margin: 12px 0 16px;
  max-width: 22ch;
  color: var(--cream);
}

.page-about .sec-team__head p {
  margin: 0;
  max-width: 60ch;
  line-height: 1.8;
  color: rgba(247, 243, 232, 0.8);
}

.page-about .sec-team__tabs {
  margin-top: clamp(28px, 4vw, 44px);
}

.page-about .sec-team__tabs .tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  border-bottom: 1px solid var(--hair);
}

.page-about .sec-team__tabs .tabpanel {
  padding-top: clamp(18px, 2.5vw, 28px);
  max-width: 66ch;
}

.page-about .sec-team__tabs .tabpanel p {
  margin: 0;
  line-height: 1.8;
  color: rgba(247, 243, 232, 0.82);
}

.page-about .sec-team__figure {
  margin: clamp(32px, 5vw, 56px) 0 0;
  border-radius: var(--panel-r);
}

/* ---------- 数据协作 ---------- */

.page-about .sec-data__grid {
  display: grid;
  gap: var(--about-gap);
  align-items: start;
}

.page-about .sec-data__stat {
  padding: var(--about-pad);
  border-radius: var(--panel-r);
}

.page-about .sec-data__label {
  margin: 0 0 20px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--lime);
}

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

.page-about .sec-data__num-list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-about .sec-data__num-list .num {
  font-family: var(--mono);
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 600;
  line-height: 1;
  color: var(--lime);
  min-width: 1.7em;
}

.page-about .sec-data__num-list li > span:last-child {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(247, 243, 232, 0.82);
}

.page-about .sec-data__body .display-2 {
  margin: 12px 0 18px;
  max-width: 20ch;
  color: var(--cream);
}

.page-about .sec-data__body p {
  margin: 0 0 16px;
  max-width: 60ch;
  line-height: 1.8;
  color: rgba(247, 243, 232, 0.82);
}

.page-about .sec-data__body p:last-child {
  margin-bottom: 0;
}

/* ---------- 四级流程 ---------- */

.page-about .sec-flow .display-2 {
  margin: 12px 0 0;
  max-width: 24ch;
  color: var(--cream);
}

.page-about .flow {
  margin-top: clamp(30px, 5vw, 52px);
  display: grid;
  gap: clamp(16px, 2.4vw, 24px);
}

.page-about .flow__step {
  position: relative;
  padding: clamp(22px, 2.8vw, 30px) clamp(18px, 2.2vw, 24px);
  border-radius: var(--panel-r);
  border: 1px solid var(--hair);
  background: linear-gradient(158deg, rgba(20, 69, 58, 0.96), rgba(11, 43, 34, 0.92));
  overflow: hidden;
}

.page-about .flow__step::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--lime), rgba(200, 255, 61, 0));
}

.page-about .flow__num {
  display: block;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--lime);
}

.page-about .flow__step h3 {
  margin: 12px 0 10px;
  font-size: 18px;
  line-height: 1.4;
  color: var(--cream);
}

.page-about .flow__step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(247, 243, 232, 0.78);
}

/* ---------- 本地运营 ---------- */

.page-about .sec-local__grid {
  display: grid;
  gap: var(--about-gap);
  align-items: center;
}

.page-about .sec-local__figure {
  margin: 0;
  border-radius: var(--panel-r);
}

.page-about .sec-local__body .display-2 {
  margin: 12px 0 18px;
  max-width: 20ch;
  color: var(--cream);
}

.page-about .sec-local__body p {
  margin: 0 0 16px;
  max-width: 60ch;
  line-height: 1.8;
  color: rgba(247, 243, 232, 0.82);
}

.page-about .sec-local__body .btn {
  margin-top: 8px;
}

/* ---------- 内容积累 ---------- */

.page-about .sec-archive .display-2 {
  margin: 12px 0 0;
  max-width: 24ch;
  color: var(--cream);
}

.page-about .sec-archive__grid {
  margin-top: clamp(28px, 4vw, 46px);
}

.page-about .sec-archive__card {
  padding: clamp(22px, 3vw, 30px);
  border-radius: var(--panel-r);
}

.page-about .sec-archive__card .num {
  display: block;
  margin-bottom: 14px;
  font-family: var(--mono);
  font-size: clamp(30px, 4.4vw, 44px);
  font-weight: 600;
  line-height: 1;
  color: var(--lime);
}

.page-about .sec-archive__card.panel--solid .num {
  color: var(--forest);
}

.page-about .sec-archive__card h3 {
  margin: 0 0 10px;
  font-size: 17px;
  line-height: 1.45;
}

.page-about .sec-archive__card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
}

.page-about .sec-archive__card.panel--solid {
  color: var(--ink);
}

.page-about .sec-archive__card.panel--solid p {
  color: rgba(22, 24, 26, 0.74);
}

.page-about .sec-archive__card.panel--moss {
  color: var(--cream);
}

.page-about .sec-archive__card.panel--moss p {
  color: rgba(247, 243, 232, 0.8);
}

/* ---------- 服务承诺 ---------- */

.page-about .sec-promise__panel {
  padding: clamp(26px, 4vw, 48px);
  border-radius: clamp(20px, 2.6vw, 28px);
}

.page-about .sec-promise__label {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--lime);
}

.page-about .sec-promise__panel .display-2 {
  margin: 14px 0 0;
  max-width: 22ch;
  color: var(--cream);
}

.page-about .sec-promise__grid {
  margin-top: clamp(24px, 3.4vw, 38px);
  display: grid;
  gap: clamp(18px, 2.6vw, 26px);
}

.page-about .sec-promise__item h3 {
  margin: 0 0 8px;
  font-size: 17px;
  line-height: 1.45;
  color: var(--lime);
}

.page-about .sec-promise__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(247, 243, 232, 0.82);
}

.page-about .sec-promise__actions {
  margin-top: clamp(26px, 3.4vw, 40px);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 图片与动效 ---------- */

.page-about .media-frame {
  overflow: hidden;
}

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

.page-about [data-reveal] {
  transition: opacity 360ms var(--ease), transform 360ms var(--ease);
}

@media (prefers-reduced-motion: reduce) {
  .page-about [data-reveal] {
    transition: opacity 200ms linear;
  }
}

/* ---------- 响应式 ---------- */

@media (min-width: 480px) {
  .page-about .hero-about__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-about .flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-about .hero-about__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.9fr);
    align-items: end;
  }

  .page-about .sec-origin__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: center;
  }

  .page-about .sec-origin__figure {
    margin-left: clamp(0px, 2vw, 24px);
  }

  .page-about .sec-data__grid {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  }

  .page-about .sec-local__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1fr);
  }

  .page-about .sec-local__figure {
    transform: translateY(clamp(-20px, -2vw, 0px));
  }

  .page-about .sec-team__tabs .tabpanel {
    padding-right: clamp(0px, 4vw, 52px);
  }
}

@media (max-width: 899px) {
  .page-about .sec-local__body {
    order: -1;
  }
}

@media (min-width: 1080px) {
  .page-about .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}