.page-about {
  --ab-p1: #0A0E16;
  --ab-p2: #0D1119;
  --ab-p3: #111A28;
  --ab-p4: #15212F;
  --ab-glow: rgba(53, 242, 208, 0.16);
  color: var(--white);
}

/* ---------- 面包屑 ---------- */
.page-about .crumbs {
  margin: 18px 0 0;
}
.page-about .crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--steel);
}
.page-about .crumbs li {
  display: flex;
  align-items: center;
  gap: 8px;
}
.page-about .crumbs li + li::before {
  content: "/";
  color: var(--line);
}
.page-about .crumbs a {
  color: var(--steel);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}
.page-about .crumbs a:hover,
.page-about .crumbs a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}
.page-about .crumbs [aria-current="page"] {
  color: var(--white);
}

/* ---------- 首屏 ---------- */
.page-about .ab-hero {
  display: grid;
  gap: 28px;
  padding: 28px 0 40px;
  border-bottom: 1px solid var(--line);
}
.page-about .ab-hero__lead {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
}
.page-about .ab-hero h1 {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: clamp(34px, 9.2vw, 92px);
  line-height: 1.02;
  letter-spacing: 0.01em;
  color: var(--white);
  text-wrap: balance;
  overflow-wrap: anywhere;
}
.page-about .ab-hero .lead {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--steel);
}
.page-about .ab-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-about .ab-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin: 4px 0 0;
  padding: 14px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--steel);
}
.page-about .ab-hero__quick .mono {
  color: var(--cyan);
  font-size: 16px;
  margin-right: 4px;
}
.page-about .ab-hero__media {
  min-width: 0;
  margin: 0;
}

/* ---------- 通用媒体 ---------- */
.page-about .media {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
}
.page-about .media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about .media__cap {
  padding: 10px 12px;
  border-top: 1px solid var(--line);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--steel);
  background: var(--ink);
}

/* ---------- 章节通用 ---------- */
.page-about .ab-sec {
  padding: 44px 0;
  border-bottom: 1px solid var(--line);
}
.page-about .ab-sec:last-of-type {
  border-bottom: 0;
}
.page-about .ab-sec__head {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 20px;
}
.page-about .ab-num {
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--cyan);
  border: 1px solid var(--line);
  padding: 3px 8px;
}
.page-about .ab-sec__head h2 {
  margin: 0;
  flex: 1 1 240px;
  min-width: 0;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: clamp(24px, 5.6vw, 44px);
  line-height: 1.14;
  letter-spacing: 0.02em;
  overflow-wrap: anywhere;
}
.page-about .ab-sec__intro {
  margin: 0 0 24px;
  max-width: 68ch;
  color: var(--steel);
  line-height: 1.8;
}
.page-about .ab-col p {
  margin: 0 0 16px;
  line-height: 1.85;
}
.page-about .ab-col p:last-child {
  margin-bottom: 0;
}

/* ---------- 内联时间轴装饰 ---------- */
.page-about .ab-axis {
  display: none;
  width: 64px;
  height: auto;
  margin-left: auto;
}

/* ---------- 起步阶段 ---------- */
.page-about .layout {
  display: grid;
  gap: 24px;
}
.page-about .ab-facts {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--steel);
}
.page-about .ab-facts li {
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--line);
}
.page-about .ab-facts li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.page-about .ab-facts .mono {
  color: var(--cyan);
  margin-right: 4px;
}

/* ---------- 赛季标签带 ---------- */
.page-about .season-band {
  display: flex;
  gap: 10px;
  margin: 0 0 26px;
  padding-bottom: 6px;
  overflow-x: auto;
  scrollbar-width: thin;
}
.page-about .season-chip {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--steel);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: color 200ms var(--ease), border-color 200ms var(--ease), background 200ms var(--ease);
}
.page-about .season-chip .mono {
  color: var(--steel);
  font-size: 11px;
  letter-spacing: 0.1em;
}
.page-about .season-chip:hover,
.page-about .season-chip:focus-visible {
  color: var(--white);
  border-color: var(--cyan);
}
.page-about .season-chip--now {
  border-color: var(--orange);
  color: var(--white);
}
.page-about .season-chip--now .mono {
  color: var(--orange);
}

/* ---------- 时间轴 ---------- */
.page-about .tl {
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .tl__item {
  position: relative;
  padding: 0 0 24px 26px;
  border-left: 1px solid var(--line);
}
.page-about .tl__item:last-child {
  padding-bottom: 0;
}
.page-about .tl__meta {
  position: relative;
  margin-bottom: 10px;
}
.page-about .tl__meta .eyebrow {
  color: var(--steel);
}
.page-about .tl__season {
  margin: 6px 0 0;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.04em;
  color: var(--white);
}
.page-about .tl__ver {
  margin: 2px 0 0;
  font-size: 15px;
  color: var(--cyan);
}
.page-about .tl__dot {
  position: absolute;
  left: -32px;
  top: 6px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px var(--ab-glow);
  animation: ab-pulse 2.6s var(--ease) infinite;
}
.page-about .tl__dot--now {
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 122, 47, 0.18);
}
@keyframes ab-pulse {
  0%, 100% { box-shadow: 0 0 0 4px var(--ab-glow); }
  50% { box-shadow: 0 0 0 9px rgba(53, 242, 208, 0.04); }
}
.page-about .tl__panel {
  padding: 18px 18px 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  box-shadow: var(--hard-shadow);
}
.page-about .tl__item:nth-child(1) .tl__panel { background: var(--ab-p1); }
.page-about .tl__item:nth-child(2) .tl__panel { background: var(--ab-p2); }
.page-about .tl__item:nth-child(3) .tl__panel { background: var(--ab-p3); }
.page-about .tl__item:nth-child(4) .tl__panel { background: var(--ab-p4); }
.page-about .tl__panel--now {
  border-left-color: var(--orange);
}
.page-about .tl__item .panel__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 10px;
}
.page-about .tl__item .panel__idx {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--steel);
}
.page-about .tl__item .panel__title {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: var(--white);
}
.page-about .tl__panel p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--white);
}
.page-about .tl__more {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}
.page-about .tl__more summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}
.page-about .tl__more summary::-webkit-details-marker {
  display: none;
}
.page-about .tl__more summary::after {
  content: " +";
}
.page-about .tl__more[open] summary::after {
  content: " −";
}
.page-about .tl__more summary:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: 3px;
}
.page-about .tl__more p {
  margin-top: 10px;
  font-size: 14px;
  color: var(--steel);
}

/* ---------- 数据资产 ---------- */
.page-about .ab-assets {
  display: grid;
  gap: 22px;
}
.page-about .stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-about .stat {
  background: var(--panel);
  padding: 16px 14px;
  min-width: 0;
}
.page-about .stat__num {
  margin: 0;
  font-size: clamp(26px, 7vw, 40px);
  line-height: 1.05;
  color: var(--cyan);
  white-space: nowrap;
}
.page-about .stat__unit {
  font-size: 0.52em;
  color: var(--steel);
  margin-left: 0.15em;
}
.page-about .stat__label {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--steel);
}
.page-about .ab-assets__body p {
  margin: 0 0 16px;
  line-height: 1.85;
}
.page-about .ab-assets__media {
  margin-top: 4px;
}

/* ---------- 团队 ---------- */
.page-about .ab-team {
  display: grid;
  gap: 22px;
}
.page-about .ab-team__body > p {
  margin: 0 0 18px;
  line-height: 1.85;
}
.page-about .role-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-about .role-list li {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  background: var(--panel);
  padding: 14px 14px;
}
.page-about .role-list__n {
  font-size: 24px;
  line-height: 1.1;
  color: var(--violet);
}
.page-about .role-list__title {
  margin: 0 0 4px;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.03em;
  color: var(--white);
}
.page-about .role-list div p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--steel);
}

/* ---------- 合作生态 ---------- */
.page-about .eco {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-about .eco__item {
  background: var(--panel);
  padding: 18px 16px;
  border-left: 3px solid var(--line);
  transition: border-color 220ms var(--ease), background 220ms var(--ease);
}
.page-about .eco__item:hover,
.page-about .eco__item:focus-within {
  border-left-color: var(--cyan);
  background: var(--mist);
}
.page-about .eco__item .eyebrow {
  color: var(--steel);
}
.page-about .eco__n {
  margin: 8px 0 8px;
  font-size: 22px;
  color: var(--cyan);
  white-space: nowrap;
}
.page-about .eco__u {
  font-size: 0.6em;
  color: var(--steel);
  margin-left: 0.15em;
}
.page-about .eco__item > p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--steel);
}
.page-about .ab-eco-note {
  margin-top: 20px;
}
.page-about .ab-eco-note p:last-child {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--steel);
}

/* ---------- 行业认可 ---------- */
.page-about .award {
  display: grid;
  gap: 20px;
  padding: 20px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--violet);
  background: var(--panel);
  box-shadow: var(--hard-shadow);
}
.page-about .award__years {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-about .award__year {
  padding: 6px 10px;
  border: 1px solid var(--line);
  font-size: 14px;
  color: var(--violet);
  background: var(--ink);
}
.page-about .award__body p {
  margin: 0 0 14px;
  line-height: 1.85;
}
.page-about .award__body p:last-child {
  margin-bottom: 0;
}

/* ---------- 下一步 ---------- */
.page-about .next-list {
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-about .next-list__item {
  background: var(--panel);
  padding: 18px 16px;
}
.page-about .next-list__n {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--orange);
  border-bottom: 1px solid var(--line);
  padding-bottom: 4px;
}
.page-about .next-list__item h3 {
  margin: 12px 0 8px;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: 0.02em;
  color: var(--white);
}
.page-about .next-list__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--steel);
}
.page-about .ab-cta {
  display: grid;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--line);
  background: linear-gradient(120deg, var(--mist) 0%, var(--panel) 62%);
}
.page-about .ab-cta p {
  margin: 0;
  max-width: 60ch;
  line-height: 1.85;
}
.page-about .ab-cta__btns {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 平板 ---------- */
@media (min-width: 760px) {
  .page-about .ab-sec {
    padding: 56px 0;
  }
  .page-about .stat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .eco {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .role-list li {
    grid-template-columns: 64px minmax(0, 1fr);
    padding: 16px 18px;
  }
  .page-about .award {
    grid-template-columns: 150px minmax(0, 1fr);
    align-items: start;
    padding: 24px;
  }
  .page-about .award__years {
    flex-direction: column;
    align-items: flex-start;
  }
  .page-about .next-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .tl__item {
    display: grid;
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 26px;
    padding-left: 30px;
  }
  .page-about .tl__meta {
    margin-bottom: 0;
    text-align: left;
  }
  .page-about .tl__dot {
    left: -36px;
    top: 10px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1024px) {
  .page-about .ab-hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: end;
    gap: 48px;
    padding: 56px 0 56px;
  }
  .page-about .ab-hero h1 {
    font-size: clamp(56px, 6.6vw, 104px);
  }
  .page-about .ab-axis {
    display: block;
  }
  .page-about .layout {
    grid-template-columns: minmax(0, 1fr) var(--rail);
    gap: 40px;
    align-items: start;
  }
  .page-about .ab-assets {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 32px;
    align-items: start;
  }
  .page-about .stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .ab-team {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    gap: 36px;
    align-items: start;
  }
  .page-about .eco {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .ab-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 28px;
    padding: 26px 24px;
  }
}

/* ---------- 动效收敛 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about .tl__dot {
    animation: none;
  }
  .page-about .season-chip,
  .page-about .eco__item,
  .page-about .crumbs a {
    transition: none;
  }
}
<<<END>>>