.page-about {
  --about-glow: rgba(198, 255, 61, 0.09);
}

/* ---------- 页首 ---------- */
.page-about .about-head {
  padding-top: 22px;
}

.page-about .about-head__title {
  margin: 14px 0 0;
  max-width: 24ch;
}

.page-about .about-head__lead {
  margin: 18px 0 0;
  max-width: 66ch;
}

.page-about .about-keynums {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(128px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-keynums > li {
  background: var(--ink-1);
  padding: 14px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.page-about .about-keynums__v {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: 0.03em;
  color: var(--neon);
}

.page-about .about-keynums__k {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

/* ---------- 通用分区修饰 ---------- */
.page-about .about-sec {
  scroll-margin-top: 96px;
}

.page-about .about-sec--last {
  padding-bottom: 76px;
}

/* ---------- 时间线 ---------- */
.page-about .about-timeline {
  list-style: none;
  margin: 30px 0 0;
  padding: 0 0 0 28px;
  position: relative;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 14px;
  width: 1px;
  background: linear-gradient(180deg, var(--neon) 0%, rgba(198, 255, 61, 0.4) 58%, rgba(198, 255, 61, 0) 100%);
}

.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 24px;
  margin: 0 0 22px;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-timeline__item:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: 0;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ink-0);
  border: 1px solid var(--neon);
  box-shadow: 0 0 0 4px var(--about-glow);
}

.page-about .about-timeline__meta {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 8px;
}

.page-about .about-timeline__year {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--neon);
}

.page-about .about-timeline__ver {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-about .about-timeline__title {
  margin: 0;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text);
}

.page-about .about-timeline__text {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
  max-width: 58ch;
}

/* ---------- 图片块 ---------- */
.page-about .about-figure {
  margin: 30px 0 0;
  padding: 0;
  border: 1px solid var(--line);
  background: var(--ink-1);
  overflow: hidden;
}

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

.page-about .about-figure__cap {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  background: var(--ink-0);
  font-size: 12px;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 团队 ---------- */
.page-about .about-crew {
  margin: 30px 0 0;
}

.page-about .about-team-note {
  margin: 20px 0 0;
  max-width: 62ch;
}

/* ---------- 覆盖范围标签墙 ---------- */
.page-about .about-wall {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .about-wall__item {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 15px;
  border: 1px solid var(--line);
  background: var(--ink-1);
  transition: transform var(--t) var(--ease), border-color var(--t) var(--ease), background-color var(--t) var(--ease);
}

.page-about .about-wall__name {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--text);
}

.page-about .about-wall__count {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
  transition: color var(--t) var(--ease);
}

@media (hover: hover) {
  .page-about .about-wall__item:hover {
    transform: scale(1.05);
    border-color: var(--neon);
    background: var(--ink-2);
  }

  .page-about .about-wall__item:hover .about-wall__count {
    color: var(--neon);
  }
}

/* ---------- 更新节奏 ---------- */
.page-about .about-beats__title {
  margin: 42px 0 0;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
}

.page-about .about-beats {
  margin: 16px 0 0;
  border-top: 1px solid var(--line);
}

.page-about .about-beats__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-beats__when {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--orange);
}

.page-about .about-beats__what {
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 承诺 ---------- */
.page-about .about-pledge {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-pledge__item {
  background: var(--ink-0);
  padding: 18px 16px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 16px;
  align-items: start;
  min-width: 0;
}

.page-about .about-pledge__num {
  grid-row: 1 / span 2;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--neon);
}

.page-about .about-pledge__title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
}

.page-about .about-pledge__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 运营与联系 ---------- */
.page-about .about-ops {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin: 28px 0 0;
}

.page-about .about-ops__card {
  border: 1px solid var(--line);
  background: var(--ink-1);
  padding: 20px 18px;
  min-width: 0;
}

.page-about .about-ops__title {
  margin: 0 0 12px;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
}

.page-about .about-ops__text {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-about .about-ops__text a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid var(--blue-dim);
}

.page-about .about-ops__text a:hover {
  border-bottom-color: var(--blue);
}

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

.page-about .about-ops__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 16px 0 0;
}

.page-about .about-contact {
  margin: 0;
  font-style: normal;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-contact__row {
  margin: 0;
  padding: 12px 14px;
  background: var(--ink-0);
  display: grid;
  gap: 4px;
  min-width: 0;
}

.page-about .about-contact__k {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-about .about-contact__v {
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-about .about-contact__v--mono {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.03em;
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-about .about-head__title {
    max-width: 26ch;
  }

  .page-about .about-timeline {
    margin-top: 38px;
    padding-left: 40px;
  }

  .page-about .about-timeline::before {
    left: 6px;
    top: 12px;
    bottom: 18px;
  }

  .page-about .about-timeline__item {
    padding-bottom: 30px;
    margin-bottom: 26px;
  }

  .page-about .about-timeline__item::before {
    left: -40px;
    top: 7px;
    width: 12px;
    height: 12px;
  }

  .page-about .about-timeline__year {
    font-size: 20px;
  }

  .page-about .about-timeline__title {
    font-size: 22px;
  }

  .page-about .about-beats__row {
    grid-template-columns: minmax(160px, 220px) 1fr;
    align-items: baseline;
    gap: 24px;
  }

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

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

  .page-about .about-ops__card {
    border: 0;
    padding: 24px 22px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1040px) {
  .page-about .about-timeline {
    max-width: 900px;
  }

  .page-about .about-timeline__text {
    max-width: 62ch;
  }

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

  .page-about .about-pledge__item {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 22px 18px;
  }

  .page-about .about-pledge__num {
    grid-row: auto;
    padding-top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-wall__item,
  .page-about .about-wall__count {
    transition: none;
  }

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