.page-about {
  --about-node: #D6A43D;
  --about-axis-line: #B9BFC6;
  --about-pad: 20px;
}

.page-about .about-hero {
  position: relative;
  padding-top: 36px;
  padding-bottom: 40px;
}

.page-about .about-hero__axis {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: linear-gradient(180deg, rgba(214, 164, 61, 0) 0%, rgba(214, 164, 61, .55) 22%, rgba(185, 191, 198, .5) 78%, rgba(185, 191, 198, 0) 100%);
  pointer-events: none;
}

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

.page-about .about-hero__main {
  max-width: 760px;
}

.page-about .about-hero__title {
  font-family: var(--ax-font-display);
  font-weight: 800;
  font-size: clamp(2rem, 6.4vw, 3.6rem);
  line-height: 1.18;
  letter-spacing: -.01em;
  color: var(--ax-ink);
  margin: 14px 0 20px;
}

.page-about .about-hero__title br {
  display: none;
}

.page-about .about-hero__lead {
  font-size: 1.02rem;
  line-height: 1.9;
  color: var(--ax-brick);
  max-width: 38em;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .about-hero__rail {
  border-top: 1px solid var(--ax-line);
  padding-top: 18px;
}

.page-about .about-stat {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
}

.page-about .about-stat__row {
  border-left: 2px solid var(--ax-crimson);
  padding-left: 10px;
}

.page-about .about-stat__key {
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--ax-brick);
  margin: 0 0 4px;
}

.page-about .about-stat__val {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ax-ink);
}

.page-about .about-hero__railnote {
  margin: 18px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
}

/* 起源 */
.page-about .about-origin__grid {
  margin-top: 8px;
}

.page-about .about-origin__body p {
  margin: 0 0 16px;
  line-height: 1.9;
}

.page-about .about-origin__list {
  margin: 22px 0 0;
}

.page-about .about-origin__figure {
  margin: 28px 0 0;
}

/* 阶段切换带 */
.page-about .about-band {
  margin: 56px 0 0;
  background: var(--ax-teal);
  background-image:
    linear-gradient(180deg, rgba(21, 23, 28, .35), rgba(21, 23, 28, 0) 60%),
    repeating-linear-gradient(135deg, rgba(243, 240, 233, .045) 0 2px, rgba(243, 240, 233, 0) 2px 9px);
  color: var(--ax-on-dark);
  position: relative;
  overflow: hidden;
}

.page-about .about-band::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(180deg, var(--ax-crimson), var(--ax-amber));
}

.page-about .about-band__plate {
  padding: 44px 0 48px;
}

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

.page-about .about-band__text {
  max-width: 640px;
}

.page-about .about-band__label {
  color: var(--ax-cyan);
}

.page-about .about-band__title {
  font-family: var(--ax-font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 4.6vw, 2.3rem);
  line-height: 1.3;
  color: var(--ax-on-dark);
  margin: 12px 0 14px;
}

.page-about .about-band__desc {
  color: rgba(237, 234, 226, .78);
  line-height: 1.85;
  margin: 0;
  font-size: .98rem;
}

.page-about .about-tabs {
  margin-top: 30px;
}

.page-about .about-tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  border-bottom: 1px solid rgba(237, 234, 226, .22);
  padding-bottom: 0;
}

.page-about .about-tabs__tab {
  appearance: none;
  background: transparent;
  border: 1px solid rgba(237, 234, 226, .24);
  border-bottom: none;
  color: rgba(237, 234, 226, .78);
  font-family: var(--ax-font-body);
  font-size: .95rem;
  padding: 11px 16px;
  border-radius: 0;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background .18s var(--ax-ease), color .18s var(--ax-ease), transform .18s var(--ax-ease);
}

.page-about .about-tabs__no {
  font-size: 12px;
  color: var(--ax-amber);
}

.page-about .about-tabs__tab:hover {
  background: rgba(237, 234, 226, .08);
}

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

.page-about .about-tabs__tab.is-active {
  background: var(--ax-paper);
  color: var(--ax-ink);
  border-color: var(--ax-paper);
  box-shadow: inset 0 -3px 0 var(--ax-cyan);
}

.page-about .about-tabs__tab.is-active .about-tabs__no {
  color: var(--ax-crimson);
}

.page-about .about-tabs__panel {
  background: rgba(21, 23, 28, .28);
  border: 1px solid rgba(237, 234, 226, .18);
  padding: 24px var(--about-pad);
  margin-top: 0;
}

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

.page-about .about-tabs__h {
  font-family: var(--ax-font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--ax-on-dark);
  margin: 0 0 12px;
  line-height: 1.45;
}

.page-about .about-tabs__panel p {
  color: rgba(237, 234, 226, .82);
  line-height: 1.88;
  margin: 0 0 12px;
  font-size: .96rem;
}

.page-about .about-tabs__meta {
  color: var(--ax-amber) !important;
  font-size: 12px !important;
  letter-spacing: .05em;
  margin-bottom: 0 !important;
}

/* 时间轴 */
.page-about .about-timeline {
  padding-top: 8px;
}

.page-about .about-axis {
  list-style: none;
  margin: 8px 0 0;
  padding: 0 0 0 34px;
  position: relative;
}

.page-about .about-axis::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: var(--about-axis-line);
}

.page-about .about-axis__item {
  position: relative;
  margin-bottom: 30px;
}

.page-about .about-axis__item:last-child {
  margin-bottom: 0;
}

.page-about .about-axis__node {
  position: absolute;
  left: -34px;
  top: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--ax-brick);
}

.page-about .about-axis__node:focus-visible {
  outline: 2px solid var(--ax-cyan-deep);
  outline-offset: 3px;
}

.page-about .about-axis__dot {
  width: 23px;
  height: 23px;
  border-radius: 50%;
  background: var(--ax-paper);
  border: 1px solid var(--about-node);
  display: flex;
  align-items: center;
  justify-content: center;
  flex: none;
}

.page-about .about-axis__dot::after {
  content: "";
  width: 7px;
  height: 7px;
  background: var(--about-node);
}

.page-about .about-axis__dot--now {
  border-color: var(--ax-cyan);
  box-shadow: 0 0 0 4px rgba(52, 210, 208, .18);
}

.page-about .about-axis__dot--now::after {
  background: var(--ax-cyan);
}

.page-about .about-axis__no {
  font-size: 12px;
  color: var(--ax-crimson);
}

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

.page-about .about-axis__card .ax-card__title {
  font-family: var(--ax-font-display);
  font-size: 1.22rem;
  line-height: 1.42;
}

.page-about .about-axis__item:nth-child(even) .about-axis__card {
  border-left: 3px solid var(--ax-indigo);
}

.page-about .about-axis__item--current .about-axis__card {
  border-left: 3px solid var(--ax-cyan);
}

/* 团队 */
.page-about .about-team {
  margin-top: 62px;
  background: var(--ax-indigo);
  color: var(--ax-on-dark);
  background-image: repeating-linear-gradient(90deg, rgba(243, 240, 233, .04) 0 1px, rgba(243, 240, 233, 0) 1px 44px);
  position: relative;
}

.page-about .about-team__inner {
  padding-top: 44px;
  padding-bottom: 48px;
}

.page-about .about-team .ax-section__head {
  border-bottom-color: rgba(237, 234, 226, .2);
}

.page-about .about-team__title {
  color: var(--ax-on-dark);
}

.page-about .about-team__note {
  color: rgba(237, 234, 226, .72);
}

.page-about .about-team__body {
  margin-top: 26px;
}

.page-about .about-team__figure {
  margin: 0 0 26px;
}

.page-about .about-team__figure .ax-media__cap {
  color: rgba(237, 234, 226, .62);
}

.page-about .about-index {
  border-top: 1px solid rgba(237, 234, 226, .3);
}

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

.page-about .about-index__row {
  border-bottom: 1px solid rgba(237, 234, 226, .16);
  padding: 18px 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  transition: background .18s var(--ax-ease);
}

.page-about .about-index__row:hover {
  background: rgba(237, 234, 226, .05);
}

.page-about .about-index__row:focus-within {
  background: rgba(237, 234, 226, .05);
}

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

.page-about .about-index__name h3 {
  font-family: var(--ax-font-display);
  font-size: 1.14rem;
  margin: 0 0 4px;
  color: var(--ax-on-dark);
  font-weight: 700;
}

.page-about .about-index__role {
  font-size: 12px;
  color: var(--ax-amber);
  margin: 0;
  letter-spacing: .05em;
}

.page-about .about-index__count {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--ax-on-dark);
  line-height: 1;
}

.page-about .about-index__count span {
  font-size: 2rem;
  color: var(--ax-cyan);
}

.page-about .about-index__duty p {
  margin: 0;
  font-size: .94rem;
  line-height: 1.85;
  color: rgba(237, 234, 226, .82);
}

.page-about .about-index__more {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 6px;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height .22s var(--ax-ease), opacity .22s var(--ax-ease);
}

.page-about .about-index__row:hover .about-index__more,
.page-about .about-index__row:focus-within .about-index__more {
  max-height: 220px;
  opacity: 1;
}

.page-about .about-index__more li {
  position: relative;
  padding-left: 16px;
  font-size: .88rem;
  color: rgba(237, 234, 226, .72);
  line-height: 1.7;
}

.page-about .about-index__more li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 8px;
  height: 2px;
  background: var(--ax-amber);
}

/* 内容体系 */
.page-about .about-cats {
  margin-top: 8px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--ax-line);
  border: 1px solid var(--ax-line);
}

.page-about .about-cat {
  background: var(--ax-paper);
  padding: 20px var(--about-pad);
  position: relative;
}

.page-about .about-cat__no {
  font-size: 12px;
  color: var(--ax-cyan-deep);
  letter-spacing: .12em;
  margin: 0 0 8px;
}

.page-about .about-cat__title {
  font-family: var(--ax-font-display);
  font-size: 1.08rem;
  margin: 0 0 8px;
  color: var(--ax-ink);
  font-weight: 700;
}

.page-about .about-cat p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--ax-brick);
}

.page-about .about-cat--wide {
  background: var(--ax-paper-2);
  box-shadow: inset 3px 0 0 var(--ax-crimson);
}

.page-about .about-cat--tall {
  background: var(--ax-paper-2);
  box-shadow: inset 3px 0 0 var(--ax-indigo);
}

.page-about .about-rhythm {
  margin-top: 30px;
  border-top: 1px solid var(--ax-line);
  padding-top: 22px;
}

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

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

.page-about .about-rhythm__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  border-left: 1px solid var(--ax-line);
  padding-left: 14px;
}

.page-about .about-rhythm__num {
  font-size: 13px;
  color: var(--ax-crimson);
  letter-spacing: .05em;
}

.page-about .about-rhythm__txt {
  font-size: .95rem;
  line-height: 1.8;
  color: var(--ax-brick);
}

/* 地域 */
.page-about .about-place {
  margin-top: 62px;
  background: var(--ax-paper-2);
  position: relative;
  overflow: hidden;
}

.page-about .about-place::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(0deg, rgba(69, 75, 82, .07) 0 1px, rgba(69, 75, 82, 0) 1px 30px);
  pointer-events: none;
}

.page-about .about-place__inner {
  position: relative;
  padding-top: 44px;
  padding-bottom: 44px;
}

.page-about .about-place__title {
  font-family: var(--ax-font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 4.6vw, 2.2rem);
  line-height: 1.3;
  color: var(--ax-ink);
  margin: 12px 0 18px;
}

.page-about .about-place__body {
  line-height: 1.9;
  color: var(--ax-brick);
  margin: 0 0 14px;
  max-width: 44em;
}

.page-about .about-place__facts {
  margin: 24px 0 0;
  display: grid;
  gap: 12px;
  border-top: 1px solid var(--ax-line);
  padding-top: 18px;
}

.page-about .about-place__facts dt {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--ax-crimson);
  margin-bottom: 3px;
}

.page-about .about-place__facts dd {
  margin: 0;
  font-size: .93rem;
  color: var(--ax-ink);
  line-height: 1.7;
}

.page-about .about-place__figure {
  margin: 30px 0 0;
}

/* 荣誉与 CTA */
.page-about .about-honor__grid {
  margin-top: 8px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

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

.page-about .about-honor__card .ax-card__title {
  font-family: var(--ax-font-display);
  font-size: 1.08rem;
}

.page-about .about-cta {
  margin-top: 34px;
  background: var(--ax-crimson);
  color: var(--ax-on-dark);
  padding: 26px var(--about-pad);
  display: grid;
  gap: 18px;
  position: relative;
}

.page-about .about-cta::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--ax-cyan), var(--ax-amber));
}

.page-about .about-cta__title {
  font-family: var(--ax-font-display);
  font-size: 1.3rem;
  margin: 0 0 8px;
  color: var(--ax-on-dark);
  font-weight: 700;
}

.page-about .about-cta__desc {
  margin: 0;
  color: rgba(237, 234, 226, .82);
  font-size: .95rem;
  line-height: 1.8;
}

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

/* 平板及以上 */
@media (min-width: 700px) {
  .page-about {
    --about-pad: 26px;
  }

  .page-about .about-hero {
    padding-top: 52px;
    padding-bottom: 52px;
  }

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

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

  .page-about .about-tabs__panel {
    padding: 28px 30px;
  }

  .page-about .about-index__row {
    grid-template-columns: 1.1fr .5fr 2fr;
    gap: 20px;
    align-items: start;
    padding: 20px 12px 20px 0;
  }

  .page-about .about-index__head {
    display: grid;
    grid-template-columns: 1.1fr .5fr 2fr;
    gap: 20px;
    padding: 0 12px 10px 0;
    font-family: var(--ax-font-mono);
    font-size: 12px;
    letter-spacing: .12em;
    color: var(--ax-amber);
    border-bottom: 1px solid rgba(237, 234, 226, .35);
  }

  .page-about .about-index__count {
    align-self: start;
  }

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

  .page-about .about-rhythm__item {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }

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

  .page-about .about-cta {
    grid-template-columns: 1.2fr auto;
    align-items: center;
    padding: 30px 34px;
  }
}

/* 桌面：编辑部网格 */
@media (min-width: 980px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
    align-items: end;
  }

  .page-about .about-hero__title br {
    display: inline;
  }

  .page-about .about-hero__rail {
    border-top: none;
    border-left: 1px solid var(--ax-line);
    padding-top: 0;
    padding-left: 24px;
  }

  .page-about .about-hero__axis {
    left: 63%;
  }

  .page-about .about-origin__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    align-items: start;
  }

  .page-about .about-origin__body {
    grid-column: 1 / span 7;
    padding-right: 24px;
  }

  .page-about .about-origin__figure {
    grid-column: 9 / span 4;
    margin: 0;
  }

  .page-about .about-axis {
    padding-left: 50%;
    padding-right: 0;
  }

  .page-about .about-axis::before {
    left: 50%;
    transform: translateX(-.5px);
  }

  .page-about .about-axis__item {
    width: 46%;
    margin-left: 0;
    margin-bottom: 34px;
  }

  .page-about .about-axis__item:nth-child(odd) {
    margin-left: 0;
    padding-right: 22px;
    text-align: left;
  }

  .page-about .about-axis__item:nth-child(even) {
    margin-left: 54%;
    padding-left: 22px;
    text-align: left;
  }

  .page-about .about-axis__item:nth-child(odd) .about-axis__node {
    left: auto;
    right: -32px;
    flex-direction: row-reverse;
  }

  .page-about .about-axis__item:nth-child(even) .about-axis__node {
    left: -32px;
  }

  .page-about .about-axis__node {
    top: 20px;
  }

  .page-about .about-axis__card .ax-card__title {
    font-size: 1.32rem;
  }

  .page-about .about-axis__item:nth-child(3) .ax-card__title {
    font-size: 1.46rem;
  }

  .page-about .about-axis__item:nth-child(4) .ax-card__title {
    font-size: 1.6rem;
  }

  .page-about .about-team__body {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 40px;
    align-items: start;
  }

  .page-about .about-team__figure {
    margin: 0;
    position: sticky;
    top: 96px;
  }

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

  .page-about .about-cat--wide {
    grid-column: span 2;
  }

  .page-about .about-cat--tall {
    grid-column: span 2;
  }

  .page-about .about-place__inner {
    display: grid;
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 44px;
    align-items: start;
    padding-top: 56px;
    padding-bottom: 56px;
  }

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

  .page-about .about-honor__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1200px) {
  .page-about .about-axis__item {
    width: 44%;
  }

  .page-about .about-axis__item:nth-child(even) {
    margin-left: 56%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-tabs__tab,
  .page-about .about-index__row,
  .page-about .about-index__more {
    transition: opacity .01ms linear;
  }
}