.page-about {
  --about-plate: rgba(21, 28, 37, .92);
  --about-hair: rgba(38, 49, 61, .65);
  display: block;
  color: var(--white);
  background: var(--ink);
  overflow-x: clip;
}

.page-about .about-hero {
  position: relative;
  padding: clamp(24px, 4vw, 48px) 0 clamp(42px, 7vw, 86px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 6% -12%, rgba(47, 216, 255, .13), transparent 58%),
    radial-gradient(80% 70% at 98% 2%, rgba(201, 255, 61, .10), transparent 62%);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: 0;
  top: clamp(48px, 10vw, 132px);
  width: min(42vw, 320px);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--blue));
  transform: rotate(-22deg);
  transform-origin: right center;
  opacity: .45;
  pointer-events: none;
}

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

.page-about .about-hero__title {
  margin: clamp(14px, 2.2vw, 24px) 0 0;
  font-family: var(--display);
  font-size: clamp(34px, 7.2vw, 84px);
  line-height: .98;
  letter-spacing: -.02em;
  color: var(--white);
}

.page-about .about-hero__lede {
  max-width: 62ch;
  margin: clamp(18px, 2.4vw, 28px) 0 0;
  color: var(--muted);
  font-size: clamp(15.5px, 1.3vw, 18px);
  line-height: 1.78;
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(30px, 4.4vw, 52px) 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-about .about-hero__stats .stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(16px, 2.2vw, 24px);
  background: var(--ink);
}

.page-about .about-hero__stats .stat__value {
  font-family: var(--display);
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--green);
}

.page-about .about-hero__stats .stat:nth-child(2) .stat__value {
  color: var(--blue);
}

.page-about .about-hero__stats .stat:nth-child(3) .stat__value {
  color: var(--white);
}

.page-about .about-hero__stats .stat__label {
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
}

.page-about .stat__unit {
  margin-left: 4px;
  font-family: var(--body);
  font-size: .4em;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--muted);
}

/* ---------- 发展历程：纵向时间栈 ---------- */

.page-about .about-track {
  padding: clamp(46px, 7vw, 92px) 0 clamp(36px, 5vw, 70px);
}

.page-about .about-track__head {
  max-width: 64ch;
  margin-bottom: clamp(28px, 4.6vw, 54px);
}

.page-about .about-track__head .h2 {
  margin: 10px 0 0;
}

.page-about .about-track__intro {
  margin: 16px 0 0;
  max-width: 58ch;
  color: var(--muted);
}

.page-about .about-track__list {
  position: relative;
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  margin: 0;
  padding: 0 0 0 30px;
  list-style: none;
}

.page-about .about-track__list::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 12px;
  bottom: 28px;
  width: 1px;
  background: linear-gradient(180deg, var(--line), var(--line) 70%, transparent);
}

.page-about .about-track__item {
  position: relative;
}

.page-about .about-track__node {
  position: absolute;
  left: -30px;
  top: 24px;
  width: 15px;
  height: 15px;
  background: var(--green);
  transform: rotate(45deg);
  outline: 4px solid var(--ink);
}

.page-about .about-track__panel {
  position: relative;
  padding: clamp(20px, 3vw, 32px);
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 8px 8px 0 0 var(--about-plate), 9px 9px 0 0 var(--about-hair);
  transition: border-color .25s ease, transform .25s ease, box-shadow .25s ease;
}

.page-about .about-track__panel:hover {
  border-color: var(--green);
  transform: translateY(-2px);
  box-shadow: 11px 13px 0 0 var(--about-plate), 12px 14px 0 0 var(--about-hair);
}

.page-about .about-track__year {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--green);
}

.page-about .about-track__panel .panel__title {
  margin: 0 0 12px;
  font-family: var(--display);
  font-size: clamp(19px, 2.1vw, 25px);
  line-height: 1.26;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-about .about-track__panel .panel__body {
  margin: 0;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-about .about-track__facts {
  display: grid;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-track__facts li {
  position: relative;
  padding-left: 16px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.page-about .about-track__facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 7px;
  height: 1px;
  background: var(--blue);
}

/* ---------- 团队分工 ---------- */

.page-about .about-team {
  padding: clamp(42px, 6vw, 80px) 0;
  border-top: 1px solid var(--line);
}

.page-about .about-team__layout {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
}

.page-about .about-team__main .h2 {
  margin: 10px 0 0;
}

.page-about .about-team__main .prose {
  margin: 16px 0 0;
  max-width: 58ch;
  color: var(--muted);
}

.page-about .about-team__groups {
  display: grid;
  gap: 1px;
  margin: clamp(24px, 3.4vw, 38px) 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-about .about-team__group {
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--ink);
  transition: background-color .25s ease;
}

.page-about .about-team__group:hover {
  background: var(--panel);
}

.page-about .about-team__count {
  display: block;
  font-family: var(--display);
  font-size: clamp(24px, 2.8vw, 34px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--white);
}

.page-about .about-team__count span {
  margin-left: 4px;
  font-family: var(--body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--muted);
}

.page-about .about-team__group .h3 {
  margin: 12px 0 8px;
  font-family: var(--body);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--green);
}

.page-about .about-team__group p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

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

.page-about .about-team__figure .figure__media {
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--raised);
}

.page-about .about-team__figure .figure__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

/* ---------- 数据生产流程 ---------- */

.page-about .about-flow {
  padding: clamp(42px, 6vw, 80px) 0;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(47, 216, 255, .06), transparent 42%);
}

.page-about .about-flow__figure {
  margin: 0 0 clamp(30px, 4.4vw, 52px);
}

.page-about .about-flow__figure .figure__media {
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--raised);
}

.page-about .about-flow__figure .figure__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(.92) contrast(1.04);
}

.page-about .figure__caption {
  margin: 12px 0 0;
  max-width: 72ch;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-flow__head {
  max-width: 62ch;
  margin-bottom: clamp(24px, 3.6vw, 40px);
}

.page-about .about-flow__head .h2 {
  margin: 10px 0 0;
}

.page-about .about-flow__head .prose {
  margin: 16px 0 0;
  color: var(--muted);
}

.page-about .about-flow__steps {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-about .about-flow__step {
  padding: clamp(20px, 2.8vw, 30px);
  background: var(--ink);
  transition: background-color .25s ease;
}

.page-about .about-flow__step:hover {
  background: var(--panel);
}

.page-about .about-flow__num {
  display: block;
  margin-bottom: 12px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--blue);
}

.page-about .about-flow__step .h3 {
  margin: 0 0 10px;
  font-family: var(--display);
  font-size: clamp(17px, 1.8vw, 21px);
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-about .about-flow__step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--muted);
}

/* ---------- 覆盖地图 ---------- */

.page-about .about-coverage {
  padding: clamp(42px, 6vw, 80px) 0;
  border-top: 1px solid var(--line);
}

.page-about .about-coverage__inner {
  padding: clamp(22px, 3.4vw, 42px);
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-about .about-coverage__head {
  display: grid;
  gap: clamp(18px, 3vw, 32px);
  margin-bottom: clamp(24px, 3.6vw, 40px);
}

.page-about .about-coverage__head .h2 {
  margin: 10px 0 0;
}

.page-about .about-coverage__head .prose {
  margin: 16px 0 0;
  max-width: 58ch;
  color: var(--muted);
}

.page-about .about-coverage__legend {
  display: grid;
  gap: 10px;
  align-content: end;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .02em;
  color: var(--muted);
}

.page-about .about-coverage__legend li {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-about .about-coverage__swatch {
  flex: none;
  width: 14px;
  height: 14px;
  border: 1px solid transparent;
}

.page-about .about-coverage__swatch--full {
  border-color: rgba(201, 255, 61, .75);
  background: rgba(201, 255, 61, .22);
}

.page-about .about-coverage__swatch--basic {
  border-color: rgba(47, 216, 255, .6);
  background: rgba(47, 216, 255, .18);
}

.page-about .about-coverage__body {
  display: grid;
  gap: clamp(22px, 3.4vw, 38px);
}

.page-about .about-coverage__cells {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-coverage__cell {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
  min-height: 72px;
  padding: 10px 11px;
  border: 1px solid var(--line);
  background: var(--ink);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  transition: transform .2s ease, border-color .2s ease;
}

.page-about .about-coverage__cell:hover {
  transform: translateY(-2px);
}

.page-about .about-coverage__cell span:last-child {
  font-size: 10.5px;
  letter-spacing: .02em;
  opacity: .8;
}

.page-about .about-coverage__cell--full {
  border-color: rgba(201, 255, 61, .45);
  background: linear-gradient(160deg, rgba(201, 255, 61, .15), rgba(5, 7, 10, .92) 74%);
  color: var(--green);
}

.page-about .about-coverage__cell--basic {
  border-color: rgba(47, 216, 255, .38);
  background: linear-gradient(160deg, rgba(47, 216, 255, .11), rgba(5, 7, 10, .92) 74%);
  color: var(--blue);
}

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

.page-about .about-coverage__figure .figure__media {
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--raised);
}

.page-about .about-coverage__figure .figure__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 战报编辑 ---------- */

.page-about .about-editorial {
  padding: clamp(42px, 6vw, 80px) 0;
  border-top: 1px solid var(--line);
}

.page-about .about-editorial__layout {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-about .about-editorial__main .h2 {
  margin: 10px 0 0;
}

.page-about .about-editorial__main .prose {
  margin: 16px 0 0;
  max-width: 60ch;
  color: var(--muted);
}

.page-about .about-editorial__list {
  display: grid;
  gap: 1px;
  margin: clamp(24px, 3.4vw, 38px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-about .about-editorial__list li {
  display: grid;
  gap: 6px;
  padding: 16px 0 16px 18px;
  border-bottom: 1px solid var(--line);
  border-left: 2px solid transparent;
  transition: border-left-color .25s ease, padding-left .25s ease;
}

.page-about .about-editorial__list li:hover {
  border-left-color: var(--green);
  padding-left: 22px;
}

.page-about .about-editorial__list strong {
  font-size: 15.5px;
  font-weight: 700;
  color: var(--white);
}

.page-about .about-editorial__list span {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

.page-about .about-editorial__aside {
  align-self: start;
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--line);
  border-left: 2px solid var(--orange);
  background: var(--raised);
}

.page-about .about-editorial__aside-title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--orange);
}

.page-about .about-editorial__aside p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--muted);
}

/* ---------- 合作与后续投入 ---------- */

.page-about .about-partners {
  padding: clamp(42px, 6vw, 80px) 0;
  border-top: 1px solid var(--line);
  background: linear-gradient(200deg, rgba(201, 255, 61, .06), transparent 46%);
}

.page-about .about-partners__panel {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  padding: clamp(22px, 3.4vw, 42px);
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-about .about-partners__lead .h2 {
  margin: 10px 0 0;
}

.page-about .about-partners__lead .prose {
  margin: 16px 0 0;
  max-width: 56ch;
  color: var(--muted);
}

.page-about .about-partners__list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
}

.page-about .about-partners__list li {
  display: grid;
  gap: 8px;
  padding: 16px 18px;
  background: var(--ink);
  transition: background-color .25s ease;
}

.page-about .about-partners__list li:hover {
  background: var(--raised);
}

.page-about .about-partners__key {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--green);
}

.page-about .about-partners__list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--muted);
}

/* ---------- 延伸入口 ---------- */

.page-about .about-next {
  padding: clamp(42px, 6vw, 84px) 0 clamp(52px, 7vw, 96px);
  border-top: 1px solid var(--line);
}

.page-about .about-next__inner {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-about .about-next__lead .h2 {
  margin: 0;
}

.page-about .about-next__lead .prose {
  margin: 16px 0 0;
  max-width: 54ch;
  color: var(--muted);
}

.page-about .about-next__lead .btn {
  margin-top: clamp(20px, 2.6vw, 30px);
}

.page-about .about-next__links {
  display: grid;
  gap: 1px;
  align-content: start;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-about .about-next__links li {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-next__links a {
  font-size: 15px;
  color: var(--white);
}

/* ---------- 断点 ---------- */

@media (min-width: 600px) {
  .page-about .about-coverage__cells {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-about .about-track__list {
    padding-left: 46px;
  }

  .page-about .about-track__node {
    left: -46px;
  }

  .page-about .about-track__item:nth-child(even) .about-track__panel {
    margin-left: clamp(28px, 7vw, 108px);
  }

  .page-about .about-track__item:nth-child(3n) .about-track__panel {
    max-width: 88%;
  }

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

  .page-about .about-team__layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-about .about-coverage__head {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-about .about-coverage__body {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-editorial__layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    align-items: start;
  }

  .page-about .about-partners__panel {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: start;
  }

  .page-about .about-next__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .page-about .about-hero {
    padding-top: clamp(32px, 4vw, 56px);
  }

  .page-about .about-coverage__cells {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-track__panel,
  .page-about .about-coverage__cell,
  .page-about .about-editorial__list li,
  .page-about .about-flow__step,
  .page-about .about-team__group,
  .page-about .about-partners__list li {
    transition: none;
  }

  .page-about .about-track__panel:hover,
  .page-about .about-coverage__cell:hover {
    transform: none;
  }
}