.page-about {
  --about-hair: #26324F;
  --about-cyan-soft: rgba(35, 229, 213, 0.10);
}

.page-about .crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-top: 26px;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--muted);
}

.page-about .crumb a {
  color: var(--muted);
  text-decoration: none;
  transition: color .2s var(--ease);
}

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

.page-about .crumb__sep {
  color: var(--line);
}

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

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding-top: 26px;
}

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

.page-about .about-hero__lead {
  padding-top: 34px;
  border-top: 1px solid var(--line);
  min-width: 0;
}

.page-about .about-hero .eyebrow {
  margin: 0;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-about .about-hero__title {
  margin: 16px 0 0;
  font-size: clamp(32px, 7.4vw, 62px);
  line-height: 1.05;
}

.page-about .about-hero__lead .lede {
  margin: 22px 0 0;
  max-width: 62ch;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .about-hero__aside {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 22px 16px;
  background:
    linear-gradient(158deg, rgba(35, 229, 213, .07), rgba(6, 11, 28, 0) 62%),
    var(--ink-1);
  box-shadow: var(--shadow);
  min-width: 0;
}

.page-about .about-hero__aside-label {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: .24em;
  color: var(--cyan);
}

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

.page-about .about-hero__fact {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 0;
  border-top: 1px solid var(--line);
}

.page-about .about-hero__fact:first-child {
  border-top: 0;
}

.page-about .about-hero__fact dt {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

.page-about .about-hero__fact dd {
  margin: 0;
  font-size: 17px;
  color: var(--white);
  letter-spacing: .02em;
}

/* ---------- 章节通用留白 ---------- */
.page-about .about-position,
.page-about .about-team,
.page-about .about-pace,
.page-about .about-scope,
.page-about .about-local,
.page-about .about-partners,
.page-about .about-cta {
  padding-top: clamp(48px, 7vw, 92px);
  padding-bottom: clamp(30px, 4vw, 48px);
}

/* ---------- 定位 ---------- */
.page-about .about-position__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-about .about-position__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(46px, 9vw, 78px);
  line-height: .9;
  letter-spacing: .02em;
  color: rgba(35, 229, 213, .08);
  -webkit-text-stroke: 1px rgba(35, 229, 213, .45);
}

.page-about .about-position__body {
  min-width: 0;
}

.page-about .about-position__body .h2 {
  margin: 0 0 20px;
}

.page-about .about-position__body p {
  margin: 0;
  max-width: 68ch;
  font-size: 16.5px;
  line-height: 1.88;
  color: var(--muted);
}

.page-about .about-position__body p + p {
  margin-top: 16px;
}

.page-about .about-principles {
  margin-top: 34px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-about .about-principles__item {
  border-left: 1px solid var(--line);
  padding-left: 16px;
}

.page-about .about-principles__item h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
}

.page-about .about-principles__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 团队 ---------- */
.page-about .about-team__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  align-items: center;
}

.page-about .about-team__intro {
  min-width: 0;
}

.page-about .about-team__intro .eyebrow {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-about .about-team__intro .h2 {
  margin: 0 0 16px;
}

.page-about .about-team__lead {
  margin: 0;
  max-width: 56ch;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .about-team__fig {
  margin: 0;
  min-width: 0;
}

.page-about .about-team__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.page-about .about-team__fig .figure__cap {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

.page-about .about-team__tabs {
  display: flex;
  flex-wrap: wrap;
  margin-top: 44px;
  padding-top: 6px;
  border-top: 1px solid var(--line);
}

.page-about .about-team__tabs .tab {
  appearance: none;
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  padding: 16px 16px 14px 0;
  margin-right: 26px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  color: var(--muted);
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-about .about-team__tabs .tab:hover {
  color: var(--white);
}

.page-about .about-team__tabs .tab[aria-selected="true"] {
  color: var(--white);
  border-bottom-color: var(--orange);
}

.page-about .about-team__tabs .tab:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-about .about-team__tabs .tabpanel {
  flex: 0 0 100%;
}

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

.page-about .about-role {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  padding-top: 28px;
}

.page-about .about-role__lead {
  margin: 0;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--white);
}

.page-about .about-role__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-about .about-role__list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

.page-about .about-role__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 9px;
  height: 1px;
  background: var(--cyan);
}

/* ---------- 内容节奏（时间轴） ---------- */
.page-about .about-pace__head {
  max-width: 720px;
}

.page-about .about-pace__head .eyebrow {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-about .about-pace__head .h2 {
  margin: 0 0 14px;
}

.page-about .about-pace__head p {
  margin: 0;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .about-timeline {
  position: relative;
  margin-top: 40px;
}

.page-about .about-stage {
  position: relative;
  border-top: 1px solid var(--line);
}

.page-about .about-stage:last-child {
  border-bottom: 1px solid var(--line);
}

.page-about .about-stage::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--line);
}

.page-about .about-stage .accordion__btn {
  position: relative;
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 14px;
  padding: 22px 16px 22px 40px;
  background: transparent;
  border: 0;
  text-align: left;
  cursor: pointer;
  color: var(--white);
  font-family: var(--font-display);
  font-size: clamp(18px, 2.6vw, 25px);
  letter-spacing: .01em;
  transition: color .2s var(--ease);
}

.page-about .about-stage .accordion__btn::before {
  content: "";
  position: absolute;
  left: 8px;
  top: calc(50% - 5px);
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ink-0);
  border: 1px solid var(--line);
  transition: background .2s var(--ease), border-color .2s var(--ease);
}

.page-about .about-stage .accordion__btn:hover {
  color: var(--cyan);
}

.page-about .about-stage .accordion__btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-about .about-stage .accordion__btn[aria-expanded="true"]::before {
  background: var(--cyan);
  border-color: var(--cyan);
  animation: aboutNodePulse 2.4s ease-in-out infinite;
}

.page-about .about-stage__idx {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--cyan);
  font-weight: 400;
}

.page-about .about-stage__name {
  flex: 0 1 auto;
}

.page-about .about-stage__meta {
  margin-left: auto;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: .06em;
  color: var(--muted);
}

.page-about .about-stage .accordion__panel {
  padding: 0 16px 26px 40px;
}

.page-about .about-stage .accordion__panel p {
  margin: 0;
  max-width: 70ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .about-stage .accordion__panel ul {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-about .about-stage .accordion__panel li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

.page-about .about-stage .accordion__panel li::before {
  content: "";
  position: absolute;
  left: 1px;
  top: .68em;
  width: 6px;
  height: 6px;
  border: 1px solid var(--line);
  transform: rotate(45deg);
}

.page-about .about-pace__figure {
  margin: 46px 0 0;
}

.page-about .about-pace__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  object-fit: cover;
}

.page-about .about-pace__figure .figure__cap {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

@keyframes aboutNodePulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(35, 229, 213, .16); }
  50% { box-shadow: 0 0 0 9px rgba(35, 229, 213, .03); }
}

/* ---------- 覆盖范围 ---------- */
.page-about .about-scope__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
}

.page-about .about-scope__intro {
  min-width: 0;
}

.page-about .about-scope__intro .eyebrow {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-about .about-scope__intro .h2 {
  margin: 0 0 16px;
}

.page-about .about-scope__intro p {
  margin: 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .about-metrics {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-about .about-metrics__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--line);
  transition: background .22s var(--ease);
}

.page-about .about-metrics__row:hover {
  background: rgba(35, 229, 213, .04);
}

.page-about .about-metrics__num {
  font-size: clamp(24px, 4.6vw, 34px);
  line-height: 1;
  letter-spacing: .01em;
  color: var(--white);
  transition: color .22s var(--ease);
}

.page-about .about-metrics__row:hover .about-metrics__num {
  color: var(--cyan);
}

.page-about .about-metrics__body {
  min-width: 0;
}

.page-about .about-metrics__label {
  display: block;
  font-size: 15px;
  font-weight: 500;
  color: var(--white);
}

.page-about .about-metrics__note {
  display: block;
  margin-top: 5px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--muted);
  opacity: .7;
  transition: opacity .22s var(--ease);
}

.page-about .about-metrics__row:hover .about-metrics__note,
.page-about .about-metrics__row:focus-within .about-metrics__note {
  opacity: 1;
}

.page-about .about-kinds {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  margin-top: 50px;
}

.page-about .about-kinds__item {
  position: relative;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

.page-about .about-kinds__item::after {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 34px;
  height: 1px;
  background: var(--cyan);
}

.page-about .about-kinds__tag {
  display: block;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-about .about-kinds__item p {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 河北本地 ---------- */
.page-about .about-local__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}

.page-about .about-local__fig {
  margin: 0;
  min-width: 0;
}

.page-about .about-local__fig img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  object-fit: cover;
}

.page-about .about-local__fig .figure__cap {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

.page-about .about-local__body {
  min-width: 0;
}

.page-about .about-local__body .eyebrow {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-about .about-local__body .h2 {
  margin: 0 0 16px;
}

.page-about .about-local__body > p {
  margin: 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .about-local__list {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-about .about-local__list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--white);
}

.page-about .about-local__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 10px;
  height: 1px;
  background: var(--orange);
}

/* ---------- 协作生态 ---------- */
.page-about .about-partners__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-about .about-partners__intro {
  min-width: 0;
}

.page-about .about-partners__intro .eyebrow {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-about .about-partners__intro .h2 {
  margin: 0 0 16px;
}

.page-about .about-partners__intro p {
  margin: 0;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .about-partners__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-about .about-partners__item {
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

.page-about .about-partners__num {
  margin: 0;
  font-size: 40px;
  line-height: 1;
  color: var(--gold);
}

.page-about .about-partners__item .h3 {
  margin: 12px 0 8px;
  font-size: 17px;
  color: var(--white);
}

.page-about .about-partners__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 行动区 ---------- */
.page-about .about-cta__box {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 24px;
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(255, 107, 44, .14), transparent 62%),
    radial-gradient(100% 130% at 0% 100%, rgba(35, 229, 213, .12), transparent 60%),
    var(--ink-1);
  box-shadow: var(--shadow);
}

.page-about .about-cta__text {
  min-width: 0;
}

.page-about .about-cta__text .h2 {
  margin: 0 0 12px;
  font-size: clamp(22px, 3.2vw, 32px);
}

.page-about .about-cta__text p {
  margin: 0;
  max-width: 56ch;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--muted);
}

.page-about .about-cta__text a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(35, 229, 213, .45);
}

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

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* ---------- 媒体查询 ---------- */
@media (min-width: 560px) {
  .page-about .about-metrics__row {
    grid-template-columns: 112px minmax(0, 1fr);
    gap: 20px;
  }
}

@media (min-width: 720px) {
  .page-about .about-principles {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
  }

  .page-about .about-kinds {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 40px;
    row-gap: 34px;
  }

  .page-about .about-partners__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(280px, 1fr);
    gap: 60px;
    align-items: end;
  }

  .page-about .about-position__grid {
    grid-template-columns: 118px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-about .about-team__head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    gap: 48px;
  }

  .page-about .about-role {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 48px;
  }

  .page-about .about-scope__inner {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 60px;
    align-items: start;
  }

  .page-about .about-local__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 56px;
  }

  .page-about .about-partners__grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 60px;
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .page-about .about-kinds {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    column-gap: 28px;
  }
}

@media (min-width: 900px) {
  .page-about .about-cta__box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 48px;
    padding: 48px 52px;
  }

  .page-about .about-cta__actions {
    margin-top: 0;
    flex: 0 0 auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-stage .accordion__btn[aria-expanded="true"]::before {
    animation: none;
    box-shadow: 0 0 0 4px rgba(35, 229, 213, .14);
  }

  .page-about .about-metrics__row,
  .page-about .about-metrics__num,
  .page-about .about-metrics__note,
  .page-about .about-team__tabs .tab {
    transition: none;
  }
}