.page-about {
  --ab-hair: rgba(111, 133, 123, 0.26);
  --ab-hair-soft: rgba(111, 133, 123, 0.14);
  --ab-glow: rgba(200, 255, 61, 0.12);
  --ab-teal-wash: rgba(15, 74, 60, 0.55);
  background: var(--c-ink);
  color: var(--c-fog);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-about .ab-hero {
  position: relative;
  padding-top: clamp(18px, 3vw, 34px);
  background:
    radial-gradient(120% 78% at 84% -12%, rgba(200, 255, 61, 0.1), transparent 62%),
    radial-gradient(95% 62% at -6% 106%, rgba(15, 74, 60, 0.55), transparent 72%),
    var(--c-ink);
}

.page-about .ab-hero__kicker {
  margin: 22px 0 14px;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-lime);
}

.page-about .ab-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 7vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  transform: skewX(-2deg);
  transform-origin: left center;
  color: var(--c-fog);
  text-wrap: balance;
}

.page-about .ab-hero__title em {
  display: block;
  font-style: normal;
  color: var(--c-lime);
}

.page-about .ab-hero__lead {
  max-width: 60ch;
  margin: 20px 0 0;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.78;
  color: var(--c-fog-dim);
}

.page-about .ab-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--c-grid);
}

.page-about .ab-hero__meta li {
  display: flex;
  align-items: baseline;
  gap: 7px;
}

.page-about .ab-hero__meta .mono {
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--c-lime);
}

.page-about .ab-hero__mediabox {
  margin-top: clamp(22px, 4vw, 42px);
}

.page-about .ab-hero__media {
  position: relative;
  margin: 0;
  aspect-ratio: 16 / 8;
  border: 1px solid var(--ab-hair);
  border-bottom: 0;
  background: var(--c-panel-2);
  overflow: hidden;
}

.page-about .ab-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-about .ab-hero__cap {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 7px 12px;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-lime);
  background: rgba(8, 26, 21, 0.82);
  border-top: 1px solid var(--ab-hair);
  border-right: 1px solid var(--ab-hair);
}

/* ---------- 色带 ---------- */
.page-about .ab-band {
  height: 12px;
  background: linear-gradient(95deg, var(--c-lime) 0 15%, var(--c-teal) 15% 68%, var(--c-panel) 68% 100%);
}

.page-about .ab-band--shear {
  height: 16px;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 40%);
  background: linear-gradient(95deg, var(--c-panel) 0 55%, var(--c-teal) 55% 88%, var(--c-lime) 88% 100%);
}

/* ---------- 章节 ---------- */
.page-about .ab-sec {
  padding-block: clamp(42px, 7vw, 86px);
}

.page-about .ab-sec--panel {
  background: var(--c-ink-2);
  border-top: 1px solid var(--ab-hair-soft);
  border-bottom: 1px solid var(--ab-hair-soft);
}

.page-about .section-head {
  max-width: 76ch;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-about .section-head__title {
  margin-top: 10px;
}

/* ---------- 起点 ---------- */
.page-about .ab-origin {
  display: grid;
  gap: 26px;
}

.page-about .ab-origin__text p {
  margin: 0 0 16px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--c-fog-dim);
}

.page-about .ab-origin__text p:last-child {
  margin-bottom: 0;
}

.page-about .ab-link {
  color: var(--c-lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 255, 61, 0.45);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-about .ab-link:hover {
  color: var(--c-lime-soft);
  border-bottom-color: var(--c-lime-soft);
}

/* 看台剖面 */
.page-about .ab-cut {
  border: 1px solid var(--ab-hair);
  background: linear-gradient(180deg, var(--ab-teal-wash), rgba(8, 26, 21, 0.94));
  padding: clamp(12px, 2.4vw, 24px);
}

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

.page-about .ab-cut__crowd line {
  stroke: var(--c-grid);
  stroke-width: 7;
  stroke-linecap: round;
  stroke-dasharray: 0 20;
  opacity: 0.5;
}

.page-about .ab-cut__base {
  stroke: var(--c-line);
  stroke-width: 1;
}

.page-about .ab-cut__tier {
  cursor: pointer;
  outline: none;
}

.page-about .ab-cut__tier polygon {
  fill: var(--c-panel);
  stroke: var(--c-line);
  stroke-width: 1;
  transition: fill 0.25s var(--ease), stroke 0.25s var(--ease), stroke-width 0.25s var(--ease);
}

.page-about .ab-cut__tier--1 polygon {
  fill: #0E2B22;
}

.page-about .ab-cut__tier--2 polygon {
  fill: #123227;
}

.page-about .ab-cut__tier--3 polygon {
  fill: #14352B;
}

.page-about .ab-cut__tier:hover polygon,
.page-about .ab-cut__tier:focus polygon {
  fill: var(--c-teal);
  stroke: var(--c-lime);
  stroke-width: 2;
}

.page-about .ab-cut__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  fill: var(--c-grid);
  text-anchor: middle;
}

.page-about .ab-cut__name {
  font-family: var(--font-body);
  font-size: 15px;
  letter-spacing: 0.16em;
  fill: var(--c-fog);
  text-anchor: middle;
}

.page-about .ab-cut__tier:hover .ab-cut__no,
.page-about .ab-cut__tier:focus .ab-cut__no {
  fill: var(--c-lime);
}

.page-about .ab-cut__legend {
  display: grid;
  gap: 9px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  line-height: 1.65;
  color: var(--c-fog-dim);
}

.page-about .ab-cut__legend li {
  display: flex;
  align-items: flex-start;
  gap: 9px;
}

.page-about .ab-cut__dot {
  flex: none;
  margin-top: 7px;
}

.page-about .ab-cut__dot--1 {
  background: var(--c-fog-dim);
}

.page-about .ab-cut__dot--2 {
  background: var(--c-lime);
}

.page-about .ab-cut__dot--3 {
  background: var(--c-orange);
}

/* ---------- 产品界面 ---------- */
.page-about .ab-plex {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .ab-plex__item {
  position: relative;
  padding: 24px 20px 22px;
  border: 1px solid var(--ab-hair);
  background: var(--c-panel);
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-about .ab-plex__item--a {
  border-top: 3px solid var(--c-lime);
}

.page-about .ab-plex__item--b {
  border-top: 3px solid var(--c-lime-soft);
}

.page-about .ab-plex__item--c {
  border-top: 3px solid var(--c-orange);
}

.page-about .ab-plex__item:hover {
  transform: translateY(-3px);
  background: var(--c-panel-2);
  border-color: var(--c-line);
}

.page-about .ab-plex__no {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-grid);
}

.page-about .ab-plex__title {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--c-fog);
}

.page-about .ab-plex__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--c-fog-dim);
}

.page-about .ab-plex__tag {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--ab-hair-soft);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-lime);
}

.page-about .ab-plex__foot {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-fog-dim);
}

/* ---------- 运转 ---------- */
.page-about .ab-serve {
  display: grid;
  gap: 28px;
}

.page-about .ab-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: ab-step;
}

.page-about .ab-steps__item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--ab-hair);
}

.page-about .ab-steps__item:last-child {
  border-bottom: 1px solid var(--ab-hair);
}

.page-about .ab-steps__no {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 32px;
  border: 1px solid var(--c-line);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-lime);
}

.page-about .ab-steps__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--c-fog);
}

.page-about .ab-steps__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-fog-dim);
}

.page-about .ab-nums {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--ab-hair);
  border: 1px solid var(--ab-hair);
}

.page-about .ab-nums__cell {
  padding: 18px 16px 20px;
  background: var(--c-ink);
}

.page-about .ab-nums__n {
  margin: 0;
  font-size: clamp(30px, 7vw, 46px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--c-lime);
  transform: skewX(-3deg);
  transform-origin: left center;
}

.page-about .ab-nums__label {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--c-fog-dim);
}

/* ---------- 时间线 ---------- */
.page-about .ab-tl {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .ab-tl__item {
  position: relative;
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 6px 16px;
  padding: 20px 0 20px 22px;
  border-top: 1px solid var(--ab-hair);
  outline: none;
  transition: background 0.25s var(--ease), padding-left 0.25s var(--ease);
}

.page-about .ab-tl__item:last-child {
  border-bottom: 1px solid var(--ab-hair);
}

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

.page-about .ab-tl__item::after {
  content: "";
  position: absolute;
  left: -3px;
  top: 30px;
  width: 7px;
  height: 7px;
  background: var(--c-grid);
  transition: background 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-about .ab-tl__item:hover,
.page-about .ab-tl__item:focus {
  background: var(--ab-teal-wash);
  padding-left: 27px;
}

.page-about .ab-tl__item:hover::after,
.page-about .ab-tl__item:focus::after {
  background: var(--c-lime);
  box-shadow: 0 0 0 4px var(--ab-glow);
}

.page-about .ab-tl__year {
  margin: 0;
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--c-lime);
  align-self: start;
}

.page-about .ab-tl__stage {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-grid);
}

.page-about .ab-tl__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--c-fog);
}

.page-about .ab-tl__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--c-fog-dim);
}

.page-about .ab-tl__detail {
  margin: 10px 0 0;
  padding: 9px 0 9px 12px;
  border-left: 2px solid var(--c-teal);
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-grid);
  max-height: 6em;
  overflow: hidden;
  opacity: 0.72;
  transition: max-height 0.4s var(--ease), opacity 0.4s var(--ease), border-color 0.3s var(--ease), color 0.3s var(--ease);
}

.page-about .ab-tl__item:hover .ab-tl__detail,
.page-about .ab-tl__item:focus .ab-tl__detail {
  max-height: 16em;
  opacity: 1;
  border-left-color: var(--c-lime);
  color: var(--c-fog-dim);
}

.page-about .ab-shot {
  margin: clamp(26px, 4vw, 44px) 0 0;
  aspect-ratio: 3 / 2;
  border: 1px solid var(--ab-hair);
  background: var(--c-panel-2);
  overflow: hidden;
}

.page-about .ab-shot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ---------- 团队 ---------- */
.page-about .ab-team {
  display: grid;
  gap: 28px;
}

.page-about .ab-crew {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .ab-crew__item {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--ab-hair);
}

.page-about .ab-crew__item:last-child {
  border-bottom: 1px solid var(--ab-hair);
}

.page-about .ab-crew__no {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-lime);
  padding-top: 4px;
}

.page-about .ab-crew__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--c-fog);
}

.page-about .ab-crew__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-fog-dim);
}

.page-about .ab-team__note {
  margin: 20px 0 0;
  padding: 16px 18px;
  border-left: 2px solid var(--c-orange);
  background: rgba(255, 122, 26, 0.06);
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-fog-dim);
}

.page-about .ab-team__media {
  margin: 0;
  aspect-ratio: 10 / 7;
  border: 1px solid var(--ab-hair);
  background: var(--c-panel-2);
  overflow: hidden;
}

.page-about .ab-team__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ---------- 湖北本地 ---------- */
.page-about .ab-hub {
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(200, 255, 61, 0.07), transparent 60%),
    var(--c-ink-2);
  border-top: 1px solid var(--ab-hair-soft);
  border-bottom: 1px solid var(--ab-hair-soft);
}

.page-about .ab-hub__inner {
  display: grid;
  gap: 26px;
}

.page-about .ab-hub__title {
  margin: 8px 0 14px;
  font-family: var(--font-display);
  font-size: clamp(24px, 4.2vw, 36px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.005em;
  color: var(--c-fog);
}

.page-about .ab-hub__text {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.82;
  color: var(--c-fog-dim);
}

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

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

.page-about .ab-hub__list li {
  padding: 16px 16px 18px;
  background: var(--c-panel);
}

.page-about .ab-hub__tag {
  display: inline-block;
  margin-bottom: 10px;
}

.page-about .ab-hub__list p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--c-fog-dim);
}

/* ---------- 收尾 ---------- */
.page-about .ab-next {
  padding-block: clamp(40px, 6vw, 76px);
  background: var(--c-ink);
}

.page-about .ab-next__inner {
  border-top: 3px solid var(--c-lime);
  padding-top: 24px;
}

.page-about .ab-next__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(26px, 4.6vw, 40px);
  font-weight: 800;
  letter-spacing: -0.005em;
  color: var(--c-fog);
}

.page-about .ab-next__text {
  max-width: 58ch;
  margin: 0 0 22px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-fog-dim);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-about .ab-cut__legend {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

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

  .page-about .ab-hero__media {
    aspect-ratio: 16 / 7;
  }
}

@media (min-width: 900px) {
  .page-about .ab-origin {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    gap: 40px;
    align-items: start;
  }

  .page-about .ab-plex {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-about .ab-serve {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 36px;
    align-items: start;
  }

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

  .page-about .ab-team {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: 40px;
    align-items: start;
  }

  .page-about .ab-hub__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 44px;
    align-items: start;
  }

  .page-about .ab-hub__list {
    grid-template-columns: 1fr;
  }

  .page-about .ab-tl__item {
    grid-template-columns: 84px minmax(0, 1fr);
  }

  .page-about .ab-tl__year {
    font-size: 24px;
  }
}

@media (min-width: 1120px) {
  .page-about .ab-nums {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .page-about .ab-nums__cell {
    display: grid;
    grid-template-columns: 108px minmax(0, 1fr);
    align-items: center;
    gap: 18px;
    padding: 16px 18px;
    border-bottom: 1px solid var(--ab-hair);
  }

  .page-about .ab-nums__cell:last-child {
    border-bottom: 0;
  }

  .page-about .ab-nums__label {
    margin: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-plex__item,
  .page-about .ab-tl__item,
  .page-about .ab-tl__detail,
  .page-about .ab-cut__tier polygon {
    transition: none;
  }

  .page-about .ab-plex__item:hover {
    transform: none;
  }
}
<<<END>>>