.page-about {
  --about-stack: clamp(56px, 8vw, 112px);
  --about-inner: clamp(32px, 5vw, 56px);
  display: block;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding-block: clamp(28px, 4vw, 52px) var(--about-stack);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-inner);
  align-items: end;
}

.page-about .about-hero__label {
  margin: 24px 0 var(--gap-m);
  color: var(--cyan);
  letter-spacing: .16em;
  font-size: 12px;
}

.page-about .about-hero__title {
  margin: 0 0 var(--gap-m);
  font-family: var(--font-display);
  font-size: clamp(34px, 6.4vw, 72px);
  font-weight: 900;
  letter-spacing: -.03em;
  line-height: 1.06;
  color: var(--paper);
  max-width: 15em;
}

.page-about .about-hero__text {
  margin: 0;
  max-width: 34em;
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--paper-dim);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: var(--about-inner);
}

.page-about .about-hero__visual {
  position: relative;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(27, 33, 38, .9) 0%, rgba(7, 9, 11, .95) 100%);
  padding: clamp(16px, 3vw, 28px) clamp(16px, 3vw, 28px) 0;
}

.page-about .about-hero__visual::before {
  content: "";
  position: absolute;
  top: 12px;
  left: 12px;
  width: 34px;
  height: 3px;
  background: var(--cyan);
}

.page-about .about-hero__svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .about-hero__visual-note {
  display: block;
  padding: 14px 0 18px;
  border-top: 1px solid var(--line);
  margin-top: 8px;
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
}

.page-about .about-hero__figure {
  margin: var(--about-inner) 0 0;
}

.page-about .about-hero__figure .figure__media {
  border: 1px solid var(--line);
}

.page-about .about-hero__figure img,
.page-about .about-pipeline__figure img,
.page-about .about-fields__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-about .figure__caption {
  margin-top: 12px;
  color: var(--mist);
  font-size: 13px;
  line-height: 1.7;
  max-width: 46em;
}

@media (min-width: 940px) {
  .page-about .about-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: clamp(32px, 4vw, 64px);
  }
}

/* ---------- 章节索引 ---------- */
.page-about .about-index {
  border-block: 1px solid var(--line);
  background: var(--panel);
}

.page-about .about-index__list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-about .about-index__item {
  flex: 0 0 auto;
  border-right: 1px solid var(--line);
}

.page-about .about-index__item:first-child {
  border-left: 1px solid var(--line);
}

.page-about .about-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 16px 20px;
  color: var(--paper-dim);
  text-decoration: none;
  font-size: 13px;
  white-space: nowrap;
  transition: color .25s var(--ease), background-color .25s var(--ease);
}

.page-about .about-index__link:hover,
.page-about .about-index__link:focus-visible {
  color: var(--cyan);
  background: var(--card);
}

.page-about .about-index__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--cyan);
}

/* ---------- 通用章节 ---------- */
.page-about .about-section {
  padding-block: var(--about-stack);
  scroll-margin-top: 96px;
}

.page-about .about-section--panel {
  background: var(--panel);
  border-block: 1px solid var(--line);
}

.page-about .section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  margin-bottom: var(--about-inner);
  padding-top: var(--gap-m);
  border-top: 1px solid var(--line);
}

.page-about .section-head__index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
  padding-top: .5em;
}

.page-about .section-head__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-h1);
  font-weight: 900;
  letter-spacing: -.03em;
  line-height: 1.1;
  color: var(--paper);
}

.page-about .section-head__note {
  margin: 14px 0 0;
  max-width: 42em;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.75;
}

.page-about .about-timeline__note {
  display: none;
}

/* ---------- 时间轴 ---------- */
.page-about .timeline {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .timeline__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding-bottom: 28px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.page-about .timeline__item:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: 0;
}

.page-about .timeline__year {
  font-family: var(--font-mono);
  font-size: 18px;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-about .timeline__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-about .timeline__body p {
  margin: 0 0 12px;
  max-width: 40em;
  color: var(--paper-dim);
  font-size: 15px;
  line-height: 1.75;
}

.page-about .timeline__meta {
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  margin: 0;
}

@media (min-width: 860px) {
  .page-about .timeline__item {
    grid-template-columns: 128px 1fr;
    gap: 0 36px;
    padding-bottom: 36px;
    margin-bottom: 0;
    border-bottom: 0;
  }

  .page-about .timeline__year {
    align-self: stretch;
    padding-right: 28px;
    text-align: right;
    border-right: 1px solid var(--line);
    position: relative;
    font-size: 20px;
  }

  .page-about .timeline__year::after {
    content: "";
    position: absolute;
    right: -4px;
    top: 6px;
    width: 7px;
    height: 7px;
    background: var(--ink);
    border: 1px solid var(--cyan);
  }

  .page-about .timeline__body {
    padding-bottom: 8px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-timeline__head {
    grid-template-columns: auto 1fr auto;
  }

  .page-about .about-timeline__note {
    display: block;
    align-self: start;
    padding-top: .4em;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .16em;
    color: var(--mist);
  }
}

/* ---------- 字段表格 ---------- */
.page-about .about-fields__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-inner);
}

.page-about .table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  -webkit-overflow-scrolling: touch;
}

.page-about .about-fields {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-about .about-fields th,
.page-about .about-fields td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.page-about .about-fields thead th {
  background: var(--card);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  font-weight: 500;
  white-space: nowrap;
}

.page-about .about-fields tbody th {
  color: var(--paper);
  font-weight: 700;
  white-space: nowrap;
}

.page-about .about-fields tbody td {
  color: var(--paper-dim);
  line-height: 1.7;
}

.page-about .about-fields tbody td:nth-child(1) {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
  letter-spacing: .06em;
  white-space: nowrap;
}

.page-about .about-fields tbody tr:last-child th,
.page-about .about-fields tbody tr:last-child td {
  border-bottom: 0;
}

.page-about .about-fields tbody tr {
  transition: background-color .22s var(--ease);
}

.page-about .about-fields tbody tr:hover,
.page-about .about-fields tbody tr:focus-within {
  background: var(--card);
}

.page-about .about-fields__aside {
  display: grid;
  gap: var(--gap-l);
}

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

.page-about .about-fields__figure .figure__media {
  border: 1px solid var(--line);
}

.page-about .about-fields__note {
  border-left: 2px solid var(--violet);
  padding: 4px 0 4px 18px;
}

.page-about .about-fields__note .label {
  display: block;
  margin-bottom: 10px;
  color: var(--violet);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
}

.page-about .about-fields__note p:last-child {
  margin: 0;
  color: var(--paper-dim);
  font-size: 15px;
  line-height: 1.75;
}

@media (min-width: 1000px) {
  .page-about .about-fields__layout {
    grid-template-columns: 8fr 4fr;
  }
}

/* ---------- 流程 ---------- */
.page-about .pipeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .pipeline__step {
  background: var(--card);
  padding: clamp(20px, 3vw, 30px);
}

.page-about .pipeline__num {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-about .pipeline__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: 700;
  color: var(--paper);
}

.page-about .pipeline__step p:last-child {
  margin: 0;
  color: var(--paper-dim);
  font-size: 14px;
  line-height: 1.75;
}

.page-about .about-pipeline__figure {
  margin: var(--about-inner) 0 0;
}

.page-about .about-pipeline__figure .figure__media {
  border: 1px solid var(--line);
}

@media (min-width: 700px) {
  .page-about .pipeline {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1040px) {
  .page-about .pipeline {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ---------- 团队 ---------- */
.page-about .team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .team-card {
  background: var(--panel);
  padding: clamp(20px, 3vw, 32px);
}

.page-about .team-card__count {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-about .team-card__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: 700;
  color: var(--paper);
}

.page-about .team-card__text {
  margin: 0;
  color: var(--paper-dim);
  font-size: 14px;
  line-height: 1.75;
}

.page-about .about-team__foot {
  margin: var(--about-inner) 0 0;
  max-width: 46em;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.8;
}

.page-about .about-team__foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 224, .45);
}

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

@media (min-width: 700px) {
  .page-about .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

/* ---------- 人物画像 ---------- */
.page-about .audience {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-about .audience__item {
  border: 1px solid var(--line);
  border-top: 3px solid var(--cyan);
  background: var(--card);
  padding: clamp(20px, 3vw, 30px);
}

.page-about .audience__item--b {
  border-top-color: var(--violet);
}

.page-about .audience__item--c {
  border-top-color: var(--orange);
}

.page-about .audience__tag {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-about .audience__tag--violet {
  color: var(--violet);
}

.page-about .audience__tag--orange {
  color: var(--orange);
}

.page-about .audience__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-about .audience__item p:last-child {
  margin: 0;
  color: var(--paper-dim);
  font-size: 14px;
  line-height: 1.8;
}

@media (min-width: 900px) {
  .page-about .audience {
    grid-template-columns: repeat(12, 1fr);
    gap: 24px;
  }

  .page-about .audience__item--a {
    grid-column: 1 / span 5;
  }

  .page-about .audience__item--b {
    grid-column: 6 / span 7;
  }

  .page-about .audience__item--c {
    grid-column: 3 / span 8;
  }
}

/* ---------- 河南本地 ---------- */
.page-about .about-local {
  margin-top: var(--about-inner);
  border: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(53, 240, 224, .05) 0%, rgba(7, 9, 11, 0) 60%),
    var(--panel);
  padding: clamp(20px, 3vw, 32px);
}

.page-about .about-local__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: 700;
  color: var(--paper);
}

.page-about .about-local p {
  margin: 0;
  max-width: 46em;
  color: var(--paper-dim);
  font-size: 14px;
  line-height: 1.85;
}

.page-about .about-local__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

/* ---------- 收尾 ---------- */
.page-about .about-cta {
  padding-block: var(--about-stack);
  background: var(--ink);
  border-top: 1px solid var(--line);
}

.page-about .about-cta__panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-inner);
  align-items: end;
  border: 1px solid rgba(53, 240, 224, .35);
  padding: clamp(24px, 4vw, 48px);
  background:
    linear-gradient(135deg, rgba(124, 77, 255, .16) 0%, rgba(7, 9, 11, 0) 55%),
    var(--panel);
}

.page-about .about-cta__label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-about .about-cta__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  font-weight: 900;
  letter-spacing: -.03em;
  line-height: 1.15;
  color: var(--paper);
}

.page-about .about-cta__body p:last-child {
  margin: 0;
  max-width: 40em;
  color: var(--paper-dim);
  font-size: 15px;
  line-height: 1.75;
}

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

@media (min-width: 900px) {
  .page-about .about-cta__panel {
    grid-template-columns: 7fr 5fr;
  }

  .page-about .about-cta__actions {
    justify-content: flex-end;
  }
}
</style>