.page-about {
  --ab-dim: rgba(232, 242, 236, .68);
  --ab-grid-line: rgba(61, 224, 255, .09);
  padding-bottom: clamp(32px, 6vw, 72px);
}

/* ---------- 首屏 ---------- */
.page-about .ab-hero {
  position: relative;
  padding: clamp(20px, 4vw, 44px) 0 clamp(24px, 5vw, 48px);
  isolation: isolate;
}

.page-about .ab-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: -60px -20px 0;
  background-image:
    linear-gradient(to right, var(--ab-grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--ab-grid-line) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(110% 82% at 12% 0%, #000 0%, transparent 72%);
  mask-image: radial-gradient(110% 82% at 12% 0%, #000 0%, transparent 72%);
  pointer-events: none;
}

.page-about .ab-hero__kicker {
  margin: 0 0 16px;
  font-family: var(--jb-font-mono);
  font-size: .72rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--jb-cyan);
}

.page-about .ab-hero__title {
  margin: 0 0 clamp(16px, 3vw, 24px);
  font-family: var(--jb-font-display);
  font-size: clamp(1.85rem, 7.2vw, 4rem);
  line-height: 1.08;
  letter-spacing: -.025em;
  color: var(--jb-ink);
  max-width: 17ch;
}

.page-about .ab-hero__accent {
  color: var(--jb-lime);
}

.page-about .ab-hero__lead {
  margin: 0 0 clamp(22px, 4vw, 32px);
  max-width: 640px;
  font-size: clamp(.95rem, 2vw, 1.06rem);
  line-height: 1.8;
  color: var(--ab-dim);
}

.page-about .ab-hero__actions {
  flex-wrap: wrap;
}

/* ---------- 展区索引 ---------- */
.page-about .ab-index {
  display: grid;
  grid-template-columns: 1fr;
  margin-top: clamp(28px, 5vw, 48px);
  border-top: 1px solid var(--jb-line);
  border-bottom: 1px solid var(--jb-line);
}

.page-about .ab-index__item {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 15px 6px;
  text-decoration: none;
  color: var(--jb-ink-soft);
  border-bottom: 1px solid var(--jb-line);
  transition: color var(--jb-speed) var(--jb-ease), background-color var(--jb-speed) var(--jb-ease), padding-left var(--jb-speed) var(--jb-ease);
}

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

.page-about .ab-index__item:hover,
.page-about .ab-index__item:focus-visible {
  color: var(--jb-lime);
  background-color: rgba(200, 255, 61, .04);
  padding-left: 14px;
  outline: none;
}

.page-about .ab-index__num {
  flex: 0 0 auto;
  font-family: var(--jb-font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--jb-cyan);
}

.page-about .ab-index__label {
  font-size: .9rem;
  line-height: 1.5;
}

/* ---------- 章节通用 ---------- */
.page-about .ab-sec {
  padding-block: clamp(44px, 8vw, 92px);
}

.page-about .ab-sec .jb-band {
  margin-bottom: clamp(22px, 4vw, 38px);
}

/* ---------- 01 我们做什么 ---------- */
.page-about .ab-do {
  display: grid;
  gap: 18px;
  max-width: 780px;
}

.page-about .jb-prose br + br {
  margin-top: 8px;
}

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

.page-about .ab-do__pins {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 6px;
}

.page-about .ab-do__pin {
  padding: 6px 12px;
  font-family: var(--jb-font-mono);
  font-size: .68rem;
  letter-spacing: .1em;
  color: var(--jb-muted);
  border: 1px solid var(--jb-line);
  border-radius: var(--jb-pill);
}

/* ---------- 02 坐标库 ---------- */
.page-about .ab-coord {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-about .ab-coord__body {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-about .ab-coord__body .jb-prose {
  margin: 0;
}

.page-about .ab-coord__stats {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
  border-top: 1px solid var(--jb-line);
  padding-top: 20px;
}

.page-about .ab-coord__stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-about .ab-coord__val {
  font-size: clamp(1.7rem, 5vw, 2.5rem);
  line-height: 1;
  color: var(--jb-lime);
  letter-spacing: -.02em;
}

.page-about .ab-coord__unit {
  font-size: .8rem;
  color: var(--jb-muted);
  letter-spacing: .04em;
}

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

/* ---------- 03 团队 ---------- */
.page-about .ab-team__lead {
  margin: 0 0 clamp(22px, 4vw, 34px);
}

.page-about .ab-team {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .ab-card {
  padding: 20px 22px 22px;
  background: var(--jb-slate);
}

.page-about .ab-card__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  cursor: pointer;
  list-style: none;
  outline-offset: 4px;
}

.page-about .ab-card__head::-webkit-details-marker {
  display: none;
}

.page-about .ab-card__head:focus-visible {
  outline: 2px solid var(--jb-cyan);
}

.page-about .ab-card__count {
  font-size: clamp(1.6rem, 4.6vw, 2.2rem);
  line-height: 1;
  color: var(--jb-lime);
}

.page-about .ab-card__role {
  font-size: .95rem;
  color: var(--jb-ink);
  letter-spacing: .02em;
}

.page-about .ab-card__body {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--jb-line);
}

.page-about .ab-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .ab-card__list li {
  position: relative;
  padding-left: 16px;
  font-size: .85rem;
  line-height: 1.7;
  color: var(--jb-ink-soft);
}

.page-about .ab-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 6px;
  height: 1px;
  background: var(--jb-cyan);
}

/* ---------- 04 版本时间轴 ---------- */
.page-about .ab-versions__lead {
  margin: 0 0 clamp(26px, 4vw, 38px);
}

.page-about .ab-tl {
  position: relative;
  list-style: none;
  margin: 0 0 clamp(28px, 5vw, 44px);
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-about .ab-tl__item {
  position: relative;
  outline-offset: 6px;
}

.page-about .ab-tl__item:focus-visible {
  outline: 2px solid var(--jb-cyan);
}

.page-about .ab-tl__dot {
  display: block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--jb-lime);
  box-shadow: 0 0 0 5px rgba(200, 255, 61, .13);
  margin-bottom: 16px;
}

.page-about .ab-tl__era {
  margin: 0 0 6px;
  font-family: var(--jb-font-mono);
  font-size: .68rem;
  letter-spacing: .18em;
  color: var(--jb-cyan);
}

.page-about .ab-tl__name {
  margin: 0 0 10px;
  font-family: var(--jb-font-display);
  font-size: clamp(1.2rem, 3.4vw, 1.5rem);
  letter-spacing: -.01em;
  color: var(--jb-ink);
}

.page-about .ab-tl__desc {
  margin: 0;
  font-size: .86rem;
  line-height: 1.8;
  color: var(--ab-dim);
}

.page-about .ab-tl__feature {
  margin: 12px 0 0;
  font-family: var(--jb-font-mono);
  font-size: .68rem;
  letter-spacing: .1em;
  color: var(--jb-orange);
}

.page-about .ab-versions__media {
  margin: 0 0 clamp(20px, 3vw, 28px);
}

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

/* ---------- 05 线下 ---------- */
.page-about .ab-offline {
  display: grid;
  gap: clamp(20px, 4vw, 36px);
}

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

.page-about .ab-offline__body {
  display: grid;
  gap: 14px;
  align-content: center;
}

.page-about .ab-offline__title {
  margin: 0;
  font-family: var(--jb-font-display);
  font-size: clamp(1.3rem, 3.8vw, 1.9rem);
  letter-spacing: -.015em;
  color: var(--jb-ink);
}

.page-about .ab-offline__body .jb-prose {
  margin: 0;
}

/* ---------- 06 覆盖与节奏 ---------- */
.page-about .ab-reach__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--jb-line);
  border: 1px solid var(--jb-line);
  margin-bottom: clamp(24px, 4vw, 36px);
}

.page-about .ab-reach__item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 16px;
  background: var(--jb-green);
}

.page-about .ab-reach__val {
  font-size: clamp(1.3rem, 4vw, 1.9rem);
  line-height: 1;
  color: var(--jb-cyan);
  letter-spacing: -.02em;
}

.page-about .ab-reach__label {
  font-size: .76rem;
  line-height: 1.6;
  color: var(--jb-muted);
}

.page-about .ab-reach__text {
  display: grid;
  gap: 16px;
  max-width: 760px;
}

.page-about .ab-reach__text .jb-prose {
  margin: 0;
}

.page-about .ab-reach__text a {
  color: var(--jb-lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 255, 61, .45);
  transition: border-color var(--jb-speed) var(--jb-ease);
}

.page-about .ab-reach__text a:hover,
.page-about .ab-reach__text a:focus-visible {
  border-bottom-color: var(--jb-lime);
  outline: none;
}

/* ---------- 下一站票券 ---------- */
.page-about .ab-next {
  position: relative;
  display: block;
  margin-top: clamp(24px, 5vw, 44px);
  padding: 26px 64px 26px 24px;
  text-decoration: none;
  transition: background-color var(--jb-speed) var(--jb-ease), transform var(--jb-speed) var(--jb-ease);
}

.page-about .ab-next:hover,
.page-about .ab-next:focus-visible {
  background-color: rgba(200, 255, 61, .06);
  transform: translateY(-2px);
  outline: none;
}

.page-about .ab-next__go {
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--jb-font-mono);
  font-size: 1.4rem;
  color: var(--jb-lime);
  transition: transform var(--jb-speed) var(--jb-ease);
}

.page-about .ab-next:hover .ab-next__go,
.page-about .ab-next:focus-visible .ab-next__go {
  transform: translateY(-50%) translateX(5px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-about .ab-index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .ab-index__item:nth-child(odd) {
    padding-right: 20px;
    border-right: 1px solid var(--jb-line);
  }

  .page-about .ab-index__item:nth-last-child(-n+2) {
    border-bottom: 0;
  }

  .page-about .ab-coord__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

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

@media (min-width: 760px) {
  .page-about .ab-team {
    grid-template-columns: 1.05fr .9fr 1fr;
    gap: 20px;
    padding-bottom: 40px;
  }

  .page-about .ab-team > :nth-child(2) {
    transform: translateY(26px);
  }

  .page-about .ab-team > :nth-child(3) {
    transform: translateY(52px);
  }

  .page-about .ab-offline {
    grid-template-columns: 1.05fr 1fr;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-about .ab-index {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .ab-index__item:nth-child(odd) {
    padding-right: 6px;
    border-right: 0;
  }

  .page-about .ab-index__item:nth-child(3n+1),
  .page-about .ab-index__item:nth-child(3n+2) {
    padding-right: 20px;
    border-right: 1px solid var(--jb-line);
  }

  .page-about .ab-index__item:nth-last-child(-n+3) {
    border-bottom: 0;
  }

  .page-about .ab-coord {
    grid-template-columns: 1.15fr .85fr;
    align-items: start;
  }

  .page-about .ab-tl {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 32px;
  }

  .page-about .ab-tl::before {
    content: "";
    position: absolute;
    top: 4px;
    left: 4px;
    right: 12px;
    height: 1px;
    background: linear-gradient(90deg, var(--jb-lime) 0%, rgba(61, 224, 255, .5) 55%, rgba(61, 224, 255, 0) 100%);
  }
}

@media (hover: hover) and (min-width: 900px) {
  .page-about .ab-tl__feature {
    opacity: 0;
    transform: translateY(-4px);
    transition: opacity var(--jb-speed) var(--jb-ease), transform var(--jb-speed) var(--jb-ease);
  }

  .page-about .ab-tl__item:hover .ab-tl__feature,
  .page-about .ab-tl__item:focus-within .ab-tl__feature,
  .page-about .ab-tl__item:focus .ab-tl__feature {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-index__item,
  .page-about .ab-next,
  .page-about .ab-next__go,
  .page-about .ab-tl__feature {
    transition: none;
  }

  .page-about .ab-team > :nth-child(2),
  .page-about .ab-team > :nth-child(3) {
    transform: none;
  }
}
</｜｜DSML｜｜ parameter>
</invoke>
</result>