.page-about {
  --about-axis: rgba(242, 237, 228, 0.16);
  --about-note-bg: rgba(242, 237, 228, 0.035);
}

.page-about .crumbs {
  padding-top: 22px;
}

.page-about .crumbs__item {
  display: inline;
}

/* ---------- 首屏 ---------- */
.page-about .hist-hero-wrap {
  padding: clamp(26px, 5vw, 54px) 0 clamp(10px, 2vw, 18px);
}

.page-about .hist-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-about .hist-hero__aside {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 6px;
}

.page-about .hist-hero__note {
  margin: 0;
  max-width: 30ch;
}

.page-about .hist-hero__title {
  margin: 0 0 20px;
  font-size: clamp(34px, 7vw, 76px);
  line-height: 1.03;
  letter-spacing: -0.022em;
}

.page-about .hist-hero__lede {
  margin: 0 0 22px;
  max-width: 62ch;
}

.page-about .hist-hero__tags {
  gap: 8px;
}

@media (min-width: 900px) {
  .page-about .hist-hero {
    grid-template-columns: minmax(0, 220px) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
  }

  .page-about .hist-hero__aside {
    border-right: 1px solid var(--line);
    padding-right: 24px;
    min-height: 220px;
  }
}

/* ---------- 通用叙述段 ---------- */
.page-about .hist-p {
  margin: 0 0 18px;
  font-size: 17px;
  line-height: 1.78;
  color: var(--paper);
  max-width: 68ch;
}

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

/* ---------- 起点分栏 ---------- */
.page-about .hist-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-about .hist-split__side {
  display: grid;
  gap: 18px;
  padding: 22px 20px;
  border: 1px solid var(--line);
  background: var(--about-note-bg);
}

.page-about .hist-fact {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-about .hist-fact:last-of-type {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .hist-fact__num {
  font-size: clamp(30px, 4.5vw, 46px);
  line-height: 1;
  color: var(--lime);
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
}

.page-about .hist-fact__label {
  font-size: 14px;
  color: var(--ice);
  line-height: 1.5;
}

.page-about .hist-split__note {
  margin: 0;
  font-size: 13px;
  color: var(--ice);
}

@media (min-width: 880px) {
  .page-about .hist-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 300px);
    gap: clamp(32px, 5vw, 64px);
  }
}

/* ---------- 时间轴跳转 ---------- */
.page-about .tl-jump {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  margin: 0 0 26px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  background: var(--about-note-bg);
}

.page-about .tl-jump__label {
  color: var(--ice);
}

.page-about .tl-jump__link {
  display: inline-block;
  padding: 3px 9px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ice);
  text-decoration: none;
  border: 1px solid transparent;
  transition: color 0.16s var(--ease), border-color 0.16s var(--ease), background 0.16s var(--ease);
}

.page-about .tl-jump__link:hover,
.page-about .tl-jump__link:focus-visible {
  color: var(--ink-0);
  background: var(--lime);
  border-color: var(--lime);
}

/* ---------- 首图 ---------- */
.page-about .hist-figure {
  margin: 0 0 38px;
}

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

.page-about .hist-figure .media-frame__caption {
  padding-top: 10px;
  font-size: 13px;
  color: var(--ice);
}

/* ---------- 时间轴 ---------- */
.page-about .tl {
  list-style: none;
  margin: 0;
  padding: 0 0 0 38px;
  position: relative;
}

.page-about .tl::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 26px;
  width: 2px;
  background: linear-gradient(180deg, var(--lime) 0%, var(--magenta) 34%, var(--amber) 62%, var(--clay) 84%, var(--moss) 100%);
  opacity: 0.55;
}

.page-about .tl__item {
  position: relative;
  padding: 0 0 34px;
}

.page-about .tl__item:last-child {
  padding-bottom: 4px;
}

.page-about .tl__item::before {
  content: "";
  position: absolute;
  left: -44px;
  top: 7px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--ink-0);
  border: 2px solid var(--rock);
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-about .tl__item:hover::before,
.page-about .tl__item:focus-within::before {
  border-color: var(--lime);
  background: var(--lime);
  transform: scale(1.15);
}

.page-about .tl__item--key::before {
  border-color: var(--magenta);
  background: var(--magenta);
}

.page-about .tl__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 8px;
}

.page-about .tl__idx {
  flex: none;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--lime);
  border: 1px solid rgba(182, 255, 60, 0.4);
  padding: 2px 8px;
}

.page-about .tl__title {
  margin: 0;
  font-size: clamp(19px, 2.4vw, 26px);
  transition: color 0.18s var(--ease);
}

.page-about .tl__item:hover .tl__title {
  color: var(--lime);
}

.page-about .tl__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ice);
  max-width: 64ch;
}

/* ---------- 四个板块 ---------- */
.page-about .pillars {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .pillar {
  position: relative;
  padding: 26px 22px 30px;
  background: var(--ink-1);
  transition: background 0.18s var(--ease);
}

.page-about .pillar::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--rock);
}

.page-about .pillar:nth-child(1)::before { background: var(--lime); }
.page-about .pillar:nth-child(2)::before { background: var(--magenta); }
.page-about .pillar:nth-child(3)::before { background: var(--amber); }
.page-about .pillar:nth-child(4)::before { background: var(--clay); }

.page-about .pillar:hover {
  background: var(--ink-2);
}

.page-about .pillar__idx {
  display: block;
  margin-bottom: 14px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--ice);
}

.page-about .pillar__title {
  margin: 0 0 10px;
  font-size: clamp(18px, 2.2vw, 22px);
}

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

@media (min-width: 700px) {
  .page-about .pillars {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1040px) {
  .page-about .pillars {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 青训与档案 ---------- */
.page-about .tracks {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-about .track {
  border: 1px solid var(--line);
  background: var(--ink-1);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-about .track:hover,
.page-about .track:focus-within {
  border-color: var(--amber);
  box-shadow: 0 0 0 1px rgba(255, 138, 61, 0.28);
}

.page-about .track .media-frame {
  margin: 0;
  border-bottom: 1px solid var(--line);
}

.page-about .track__body {
  padding: 22px 22px 28px;
}

.page-about .track__idx {
  display: inline-block;
  margin-bottom: 12px;
  padding: 3px 10px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--amber);
  border: 1px solid rgba(255, 138, 61, 0.42);
}

.page-about .track__title {
  margin: 0 0 12px;
  font-size: clamp(19px, 2.4vw, 24px);
}

.page-about .track__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ice);
}

@media (min-width: 900px) {
  .page-about .tracks {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(28px, 4vw, 44px);
  }
}

/* ---------- 编辑台 ---------- */
.page-about .crew {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .crew__item {
  padding: 22px 20px;
  background: var(--ink-1);
  transition: background 0.18s var(--ease);
}

.page-about .crew__item:hover {
  background: var(--ink-2);
}

.page-about .crew__role {
  display: block;
  margin-bottom: 10px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--lime);
}

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

.page-about .crew__note {
  margin: 22px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--moss);
  font-size: 15px;
  line-height: 1.72;
  color: var(--ice);
  max-width: 70ch;
}

@media (min-width: 640px) {
  .page-about .crew {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1040px) {
  .page-about .crew {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 合作生态 ---------- */
.page-about .eco {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

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

.page-about .eco__stat {
  padding: 24px 18px;
  background: var(--ink-1);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-about .eco__num {
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1;
  color: var(--lime);
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
}

.page-about .eco__label {
  font-size: 13px;
  color: var(--ice);
  line-height: 1.5;
}

.page-about .eco__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

@media (min-width: 900px) {
  .page-about .eco {
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 64px);
    align-items: start;
  }
}

/* ---------- 收尾 ---------- */
.page-about .hist-cta {
  padding-bottom: clamp(60px, 9vw, 110px);
}

.page-about .hist-cta__inner {
  position: relative;
  padding: clamp(30px, 5vw, 54px) clamp(22px, 4vw, 48px);
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(182, 255, 60, 0.07) 0%, rgba(7, 11, 20, 0) 46%, rgba(255, 62, 154, 0.07) 100%);
  overflow: hidden;
}

.page-about .hist-cta__inner::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--lime), var(--magenta));
}

.page-about .hist-cta__title {
  margin: 0 0 16px;
}

.page-about .hist-cta__text {
  margin: 0 0 24px;
  max-width: 58ch;
}

.page-about .hist-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (max-width: 560px) {
  .page-about .tl {
    padding-left: 28px;
  }

  .page-about .tl__item::before {
    left: -34px;
    width: 12px;
    height: 12px;
  }

  .page-about .eco__stats {
    grid-template-columns: 1fr;
  }
}
<<<END>>>