.page-about {
  --about-index-w: 176px;
  --about-lede: #C9D8CE;
  --about-lime-soft: rgba(198, 247, 60, .14);
  --about-lime-line: rgba(198, 247, 60, .45);
  background: var(--ink);
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding: clamp(22px, 5vw, 52px) 0 clamp(18px, 3vw, 30px);
}

.page-about .about-hero .eyebrow {
  margin: 0 0 14px;
  color: var(--lime);
}

.page-about .about-hero .display {
  margin: 0;
  max-width: 18ch;
  font-size: clamp(34px, 7.2vw, 72px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  font-weight: 600;
  color: var(--paper);
}

.page-about .about-hero .lede {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.85;
  color: var(--about-lede);
}

.page-about .about-quick {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: clamp(20px, 3vw, 32px);
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--panel);
}

.page-about .about-quick .btn {
  flex: 0 0 auto;
}

/* ---------- 双栏骨架 ---------- */
.page-about .about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 4vw, 48px);
  padding-top: clamp(18px, 3vw, 36px);
  padding-bottom: clamp(40px, 6vw, 80px);
}

/* ---------- 左侧索引 ---------- */
.page-about .about-index {
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.page-about .about-index__head {
  margin: 0 0 10px;
  color: var(--muted);
  letter-spacing: .12em;
  text-transform: uppercase;
}

.page-about .about-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .about-index__list li {
  flex: 0 0 auto;
}

.page-about .about-index__list a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 13px;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  color: var(--muted);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: color .18s var(--ease), border-color .18s var(--ease), background .18s var(--ease);
}

.page-about .about-index__list a .num {
  font-size: 11px;
  color: var(--lime-dim);
}

.page-about .about-index__list a:hover,
.page-about .about-index__list a:focus-visible {
  color: var(--paper);
  border-color: var(--about-lime-line);
  background: var(--about-lime-soft);
  outline: none;
}

/* ---------- 章节 ---------- */
.page-about .about-section {
  padding: clamp(24px, 4vw, 44px) 0;
  border-top: 1px solid var(--line);
}

.page-about .about-section:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-about .about-section .h2 {
  margin: 0 0 14px;
  font-size: clamp(23px, 3.4vw, 36px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  font-weight: 600;
  color: var(--paper);
}

.page-about .about-sub {
  margin: 0 0 6px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .about-prose {
  max-width: 64ch;
}

.page-about .about-prose p {
  margin: 0 0 16px;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--about-lede);
}

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

/* ---------- 数字条 ---------- */
.page-about .about-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-about .about-facts li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 16px 18px;
  background: var(--panel);
}

.page-about .about-facts__num {
  font-size: clamp(24px, 4vw, 34px);
  line-height: 1;
  color: var(--lime);
  letter-spacing: -0.02em;
}

.page-about .about-facts__label {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 横向赛季刻度 ---------- */
.page-about .about-rail {
  margin-top: clamp(18px, 3vw, 28px);
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.page-about .about-rail__list {
  position: relative;
  display: flex;
  min-width: 600px;
  margin: 0;
  padding: 26px 0 12px;
  list-style: none;
}

.page-about .about-rail__list::before {
  content: "";
  position: absolute;
  left: 8px;
  right: 8px;
  top: 26px;
  height: 1px;
  background: linear-gradient(90deg, var(--lime) 0%, var(--lime-dim) 32%, var(--line) 100%);
}

.page-about .about-rail__item {
  flex: 1 1 0;
  min-width: 120px;
}

.page-about .about-rail__item a {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  padding-right: 12px;
  text-decoration: none;
  color: var(--muted);
  transition: color .18s var(--ease);
}

.page-about .about-rail__dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--lime);
  box-shadow: 0 0 0 4px rgba(198, 247, 60, .1);
  transition: background .16s var(--ease), box-shadow .16s var(--ease);
}

.page-about .about-rail__year {
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-about .about-rail__label {
  font-size: 12.5px;
  line-height: 1.5;
  max-width: 14ch;
}

.page-about .about-rail__item a:hover,
.page-about .about-rail__item a:focus-visible {
  color: var(--paper);
  outline: none;
}

.page-about .about-rail__item a:hover .about-rail__dot,
.page-about .about-rail__item a:focus-visible .about-rail__dot {
  background: var(--lime);
  box-shadow: 0 0 0 6px rgba(198, 247, 60, .16);
}

/* ---------- 时间线详情 ---------- */
.page-about .about-seasons {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 28px);
  margin-top: clamp(16px, 3vw, 24px);
}

.page-about .about-nodes {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-node {
  padding: 16px 18px 18px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel);
  scroll-margin-top: calc(var(--header-h) + 20px);
  transition: border-color .2s var(--ease), background .2s var(--ease);
}

.page-about .about-node:target {
  border-color: var(--about-lime-line);
  border-left-color: var(--lime);
  background: #132a21;
}

.page-about .about-node__title {
  margin: 0 0 8px;
  font-size: 15.5px;
  line-height: 1.5;
  font-weight: 600;
  color: var(--paper);
}

.page-about .about-node__title .num {
  display: inline-block;
  margin-right: 8px;
  padding: 2px 7px;
  border-radius: var(--pill);
  background: var(--about-lime-soft);
  color: var(--lime);
  font-size: 12px;
  font-weight: 400;
}

.page-about .about-node p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 图片 ---------- */
.page-about .about-figure {
  margin: 0;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  object-fit: cover;
  aspect-ratio: 4 / 3;
  filter: saturate(.9) brightness(.92);
}

.page-about .about-figure figcaption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-figure--team img {
  aspect-ratio: 16 / 10;
}

/* ---------- 折线图 ---------- */
.page-about .about-chart {
  margin: clamp(22px, 4vw, 36px) 0 0;
  padding: 18px 16px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--panel);
}

.page-about .about-chart__cap {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 10px;
}

.page-about .about-chart__cap .meta {
  color: var(--lime);
  letter-spacing: .1em;
}

.page-about .about-chart__strong {
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
}

.page-about .about-chart svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.page-about .about-chart__grid {
  stroke: var(--line);
  stroke-width: 1;
  stroke-dasharray: 3 5;
}

.page-about .about-chart__area {
  fill: rgba(198, 247, 60, .12);
}

.page-about .about-chart__line {
  fill: none;
  stroke: var(--lime);
  stroke-width: 2;
  stroke-linejoin: round;
  stroke-linecap: round;
}

.page-about .about-chart__pt circle {
  fill: var(--ink);
  stroke: var(--lime);
  stroke-width: 2;
  transition: fill .16s var(--ease), r .16s var(--ease);
}

.page-about .about-chart__pt:hover circle,
.page-about .about-chart__pt:focus circle {
  fill: var(--lime);
}

.page-about .about-chart__pt:focus {
  outline: none;
}

.page-about .about-chart__val {
  fill: var(--lime);
  font-family: var(--font-mono);
  font-size: 12px;
  text-anchor: middle;
  opacity: .55;
  transition: opacity .16s var(--ease);
}

.page-about .about-chart__pt:hover .about-chart__val,
.page-about .about-chart__pt:focus .about-chart__val {
  opacity: 1;
}

.page-about .about-chart__yr {
  fill: var(--muted);
  font-family: var(--font-mono);
  font-size: 12px;
  text-anchor: middle;
}

/* ---------- 团队分工 ---------- */
.page-about .about-team {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
  margin-top: 14px;
}

.page-about .about-crew {
  display: grid;
  gap: 0;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-crew__row {
  padding: 16px 0 16px 16px;
  border-left: 1px solid var(--line);
}

.page-about .about-crew__row:first-child {
  border-top: 0;
}

.page-about .about-crew__name {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
  position: relative;
}

.page-about .about-crew__name .num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--about-lime-soft);
  color: var(--lime);
  font-size: 11px;
  vertical-align: 1px;
}

.page-about .about-crew__row p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--about-lede);
}

/* ---------- 过渡横幅 ---------- */
.page-about .about-banner {
  position: relative;
  margin: clamp(22px, 4vw, 34px) 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-about .about-banner__img {
  display: block;
  width: 100%;
  height: clamp(190px, 34vw, 300px);
  object-fit: cover;
  filter: brightness(.58) saturate(.85);
}

.page-about .about-banner__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  padding: 40px 20px 18px;
  background: linear-gradient(180deg, rgba(7, 19, 15, 0) 0%, rgba(7, 19, 15, .94) 78%);
  font-size: clamp(15px, 1.9vw, 19px);
  line-height: 1.6;
  color: var(--paper);
}

/* ---------- 服务标准表 ---------- */
.page-about .about-table-wrap {
  margin-top: clamp(16px, 3vw, 24px);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow-x: auto;
}

.page-about .about-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-about .about-table__cap {
  padding: 12px 16px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}

.page-about .about-table th,
.page-about .about-table td {
  padding: 13px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.page-about .about-table thead th {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--lime);
  font-weight: 500;
  background: #0d1b16;
}

.page-about .about-table tbody th {
  width: 30%;
  color: var(--paper);
  font-weight: 600;
  white-space: nowrap;
}

.page-about .about-table tbody td {
  color: var(--about-lede);
  line-height: 1.75;
}

.page-about .about-table tbody tr:nth-child(even) {
  background: rgba(16, 32, 26, .55);
}

.page-about .about-table tbody tr:last-child th,
.page-about .about-table tbody tr:last-child td {
  border-bottom: 0;
}

/* ---------- 合作与口碑 ---------- */
.page-about .about-partners {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
  margin-top: 14px;
}

.page-about .about-stats {
  display: grid;
  gap: 1px;
  align-self: start;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--line);
  overflow: hidden;
}

.page-about .about-stats__row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 16px;
  background: var(--panel);
}

.page-about .about-stats__num {
  flex: 0 0 auto;
  min-width: 62px;
  font-size: 22px;
  color: var(--lime);
  letter-spacing: -0.02em;
}

.page-about .about-stats__label {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 尾段 ---------- */
.page-about .about-cta {
  margin-top: clamp(24px, 4vw, 44px);
  padding: clamp(22px, 4vw, 36px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(198, 247, 60, .12) 0%, rgba(7, 19, 15, 0) 58%),
    var(--panel);
}

.page-about .about-cta__title {
  margin: 0 0 10px;
  font-size: clamp(20px, 2.8vw, 26px);
  font-weight: 600;
  color: var(--paper);
}

.page-about .about-cta__text {
  margin: 0 0 18px;
  max-width: 56ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--about-lede);
}

.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-about .about-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-seasons {
    grid-template-columns: minmax(0, 1fr) minmax(0, .72fr);
    align-items: start;
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 1fr) minmax(0, .82fr);
    align-items: start;
  }

  .page-about .about-partners {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-about .about-layout {
    grid-template-columns: var(--about-index-w) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 64px);
  }

  .page-about .about-index {
    position: sticky;
    top: calc(var(--header-h) + 26px);
    align-self: start;
    padding-top: 4px;
  }

  .page-about .about-index__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
  }

  .page-about .about-index__list a {
    padding: 8px 10px 8px 12px;
    border: 0;
    border-radius: 0;
    border-left: 2px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 13.5px;
  }

  .page-about .about-index__list a:hover,
  .page-about .about-index__list a:focus-visible {
    border-left-color: var(--lime);
    background: rgba(198, 247, 60, .07);
  }

  .page-about .about-hero .lede {
    max-width: 58ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-index__list a,
  .page-about .about-rail__dot,
  .page-about .about-node,
  .page-about .about-chart__val,
  .page-about .about-chart__pt circle {
    transition: none;
  }
}
<<<END>>>