.page-about {
  background: var(--ink);
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-about .ab-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 4vw, 40px) 0 clamp(36px, 6vw, 72px);
  border-bottom: 1px solid var(--wire);
}

.page-about .ab-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(62, 98, 92, 0.26) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(62, 98, 92, 0.26) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 82%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 82%);
  pointer-events: none;
}

.page-about .ab-hero .wrap {
  position: relative;
  z-index: 1;
}

.page-about .ab-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 44px);
  align-items: end;
  margin-top: clamp(18px, 3vw, 32px);
}

.page-about .ab-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.7rem, 9vw, 5.4rem);
  line-height: 0.94;
  letter-spacing: -0.015em;
  font-weight: 700;
  margin: 10px 0 0;
  color: var(--paper);
}

.page-about .ab-hero__lede {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 48ch;
  color: var(--mist);
  font-size: clamp(0.98rem, 1.6vw, 1.08rem);
  line-height: 1.8;
}

.page-about .ab-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-about .ab-hero__media {
  border: 1px solid var(--wire);
  background: var(--ink-deep);
}

.page-about .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .ab-hero__stats {
  list-style: none;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(158px, 1fr));
  gap: 1px;
  background: var(--wire);
  border: 1px solid var(--wire);
}

.page-about .ab-stat {
  background: var(--ink-deep);
  padding: 16px 18px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .ab-stat__num {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  line-height: 1;
  color: var(--lime);
}

.page-about .ab-stat__label {
  font-size: 0.82rem;
  color: var(--mist);
  line-height: 1.5;
}

/* ---------- 通用标题 ---------- */
.page-about .ab-h2 {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4.2vw, 3rem);
  line-height: 1.03;
  letter-spacing: -0.01em;
  font-weight: 700;
  margin: 8px 0 0;
}

.page-about .ab-link {
  color: var(--night);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

/* ---------- 从一座看台开始 ---------- */
.page-about .ab-origin__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
}

.page-about .ab-origin__main p {
  margin: 16px 0 0;
  line-height: 1.8;
  max-width: 62ch;
}

.page-about .ab-origin__quote {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 4px 0 4px clamp(16px, 2.4vw, 24px);
  border-left: 3px solid var(--flame);
  font-size: clamp(1.1rem, 2.2vw, 1.45rem);
  line-height: 1.6;
  font-weight: 600;
  max-width: 34ch;
  color: var(--ink);
}

.page-about .ab-origin__aside {
  border-top: 2px solid var(--ink);
  padding-top: 14px;
}

.page-about .ab-aside__label {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--wire);
  margin: 0 0 10px;
}

.page-about .ab-aside__text {
  margin: 0 0 18px;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--ink);
}

/* ---------- 时间轴 ---------- */
.page-about .ab-years__lede {
  margin: 14px 0 0;
  max-width: 52ch;
  color: var(--mist);
  line-height: 1.8;
}

.page-about .ab-axis {
  margin-top: clamp(26px, 4vw, 44px);
}

.page-about .ab-step {
  display: grid;
  grid-template-columns: 60px minmax(0, 1fr);
  column-gap: clamp(14px, 2.4vw, 28px);
  row-gap: 10px;
  padding: clamp(22px, 3vw, 34px) 0;
  border-top: 1px solid var(--wire);
  position: relative;
}

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

.page-about .ab-step__rail {
  grid-column: 1;
  grid-row: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.page-about .ab-step__dot {
  display: block;
  width: 11px;
  height: 11px;
  border: 2px solid var(--lime);
  border-radius: 50%;
  margin-top: 4px;
  flex: none;
}

.page-about .ab-step__year {
  font-size: 0.76rem;
  line-height: 1.3;
  color: var(--lime);
  letter-spacing: 0.04em;
}

.page-about .ab-step__body {
  grid-column: 2;
}

.page-about .ab-step__body h3 {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.6vw, 1.7rem);
  line-height: 1.15;
  margin: 0 0 10px;
  color: var(--paper);
}

.page-about .ab-step__body p {
  margin: 0;
  max-width: 58ch;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .ab-step__note {
  grid-column: 2;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--sky);
  border-left: 2px solid var(--wire);
  padding-left: 12px;
}

.page-about .ab-years__figure {
  margin: clamp(28px, 4vw, 48px) 0 0;
  border: 1px solid var(--wire);
  background: var(--ink-deep);
}

/* ---------- 内容网络 ---------- */
.page-about .ab-net__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
  align-items: center;
}

.page-about .ab-net__text {
  margin: 16px 0 0;
  max-width: 52ch;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .ab-net__list {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: rgba(62, 98, 92, 0.6);
  border: 1px solid var(--wire);
}

.page-about .ab-net__list li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 13px 16px;
  background: var(--night-deep);
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--mist);
}

.page-about .ab-net__num {
  color: var(--lime);
  font-size: 1.35rem;
  line-height: 1;
  flex: none;
  min-width: 3ch;
}

.page-about .ab-net__figure {
  margin: 0;
  border: 1px solid var(--wire);
  background: rgba(6, 22, 37, 0.55);
  padding: clamp(14px, 2.4vw, 24px);
}

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

.page-about .ab-net__cap {
  margin: 12px 0 0;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--sky);
}

/* ---------- 历史档案 ---------- */
.page-about .ab-archive__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  margin-top: clamp(22px, 3vw, 34px);
  align-items: start;
}

.page-about .ab-archive__body p {
  margin: 0 0 16px;
  line-height: 1.82;
  max-width: 62ch;
}

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

.page-about .ab-archive__fig {
  margin: 0;
  border: 1px solid var(--wire);
  background: var(--paper-deep);
}

/* ---------- 团队 ---------- */
.page-about .ab-team__lede {
  margin: 14px 0 0;
  max-width: 54ch;
  color: var(--mist);
  line-height: 1.8;
}

.page-about .ab-team__grid {
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--wire);
  border: 1px solid var(--wire);
}

.page-about .ab-team__cell {
  background: var(--ink-deep);
  padding: clamp(18px, 2.6vw, 26px);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .ab-team__num {
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 1;
  color: var(--flame);
}

.page-about .ab-team__role {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  color: var(--paper);
}

.page-about .ab-team__desc {
  font-size: 0.88rem;
  line-height: 1.72;
  color: var(--mist);
}

.page-about .ab-team__strip {
  margin-top: clamp(20px, 3vw, 30px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px 24px;
  padding-top: 18px;
  border-top: 1px dashed var(--wire);
}

.page-about .ab-team__strip p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--mist);
}

.page-about .ab-team__strip .mono {
  color: var(--lime);
  font-size: 1rem;
  margin-right: 6px;
}

/* ---------- 赛场礼仪 ---------- */
.page-about .ab-creed__list {
  list-style: none;
  margin: clamp(24px, 3.5vw, 40px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 28px);
}

.page-about .ab-creed__item {
  position: relative;
  padding: clamp(16px, 2.4vw, 24px) clamp(16px, 2.4vw, 24px) clamp(16px, 2.4vw, 24px) clamp(52px, 6vw, 66px);
  border: 1px solid var(--wire);
  background: rgba(7, 28, 26, 0.42);
}

.page-about .ab-creed__idx {
  position: absolute;
  left: clamp(14px, 2vw, 20px);
  top: clamp(16px, 2.4vw, 24px);
  font-size: 0.95rem;
  color: var(--glow);
  letter-spacing: 0.06em;
}

.page-about .ab-creed__item h3 {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.2vw, 1.35rem);
  margin: 0 0 8px;
  line-height: 1.25;
  color: var(--paper);
}

.page-about .ab-creed__item p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 收尾 ---------- */
.page-about .ab-join {
  border-top: 1px solid var(--wire);
  background:
    radial-gradient(120% 160% at 100% 0%, rgba(198, 255, 61, 0.14) 0%, transparent 58%),
    var(--ink-deep);
}

.page-about .ab-join__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.5vw, 40px);
  align-items: end;
}

.page-about .ab-join__text p {
  margin: 16px 0 0;
  max-width: 56ch;
  line-height: 1.8;
  color: var(--mist);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .ab-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: stretch;
  }

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

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

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

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

@media (min-width: 900px) {
  .page-about .ab-origin__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 288px);
    align-items: start;
  }

  .page-about .ab-step {
    grid-template-columns: 92px minmax(0, 1fr) 232px;
    align-items: start;
  }

  .page-about .ab-step__body {
    grid-column: 2;
    grid-row: 1;
  }

  .page-about .ab-step__note {
    grid-column: 3;
    grid-row: 1;
    margin-top: 6px;
    border-left: 1px solid var(--wire);
    padding-left: 16px;
  }

  .page-about .ab-net__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
  }

  .page-about .ab-archive__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

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

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