.page-about {
  --ab-line: rgba(11, 30, 51, .14);
  --ab-soft: rgba(16, 24, 32, .7);
  --ab-onDark: #F7F4EC;
  --ab-onDark-soft: rgba(247, 244, 236, .74);
  background: var(--paper-050);
  color: var(--ink-900);
  font-family: var(--font-body);
  line-height: 1.75;
  padding-bottom: clamp(40px, 7vw, 88px);
}

.page-about *,
.page-about *::before,
.page-about *::after {
  box-sizing: border-box;
}

.page-about .about-crumbs {
  padding-top: 18px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding: clamp(18px, 3vw, 34px) 0 clamp(32px, 6vw, 70px);
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-about .about-hero .eyebrow {
  color: var(--celadon-700);
  letter-spacing: .16em;
  font-size: 12px;
  margin: 0;
}

.page-about .about-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(27px, 5.2vw, 50px);
  line-height: 1.16;
  letter-spacing: .01em;
  margin: 12px 0 0;
  max-width: 17em;
}

.page-about .about-hero__lede {
  margin: 18px 0 0;
  font-size: clamp(14.5px, 1.6vw, 16.5px);
  color: var(--ab-soft);
  max-width: 36em;
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--ab-line);
}

.page-about .about-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(19px, 3vw, 29px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--celadon-700);
  letter-spacing: -.01em;
}

.page-about .about-stat__label {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--ab-soft);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-about .about-hero__figure {
  margin: 0;
}

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-2);
}

/* ---------- 分屏主体 ---------- */
.page-about .about-body {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  margin-top: clamp(4px, 2vw, 20px);
}

.page-about .about-index {
  padding: 14px 0;
  border-top: 1px solid var(--ab-line);
  border-bottom: 1px solid var(--ab-line);
}

.page-about .about-index__slogan {
  display: none;
}

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

.page-about .about-index__list::-webkit-scrollbar {
  display: none;
}

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

.page-about .about-index__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 13px;
  border: 1px solid var(--ab-line);
  border-radius: 999px;
  background: #fff;
  color: var(--night-900);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: background .18s ease, border-color .18s ease, transform .18s ease;
}

.page-about .about-index__link:hover {
  background: var(--celadon-100);
  border-color: var(--celadon-500);
  transform: translateY(-1px);
}

.page-about .about-index__link:focus-visible {
  outline: 2px solid var(--neon-300);
  outline-offset: 2px;
}

.page-about .about-index__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--celadon-700);
}

.page-about .about-flow {
  min-width: 0;
}

/* ---------- 通用章节 ---------- */
.page-about .about-sec {
  padding: clamp(26px, 4vw, 42px) 0;
  border-top: 1px solid var(--ab-line);
}

.page-about .about-flow > .about-sec:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-about .about-sec .eyebrow {
  color: var(--celadon-700);
  letter-spacing: .16em;
  font-size: 12px;
  margin: 0;
}

.page-about .about-sec h2 {
  font-family: var(--font-display);
  font-size: clamp(21px, 3.3vw, 31px);
  line-height: 1.3;
  letter-spacing: .01em;
  margin: 10px 0 16px;
  color: var(--night-900);
}

.page-about .about-sec h3 {
  font-family: var(--font-display);
  font-size: 15.5px;
  line-height: 1.4;
  margin: 0 0 6px;
}

.page-about .about-sec p {
  margin: 0 0 14px;
  font-size: clamp(14.5px, 1.6vw, 16px);
  color: var(--ab-soft);
}

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

.page-about .about-quote {
  margin: 22px 0;
  padding: 20px 22px;
  background: var(--celadon-100);
  border-left: 5px solid var(--celadon-500);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

.page-about .about-quote p {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(16px, 2.3vw, 21px);
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: .04em;
  color: var(--celadon-700);
}

/* ---------- 服务版图 ---------- */
.page-about .about-sec--map {
  margin: clamp(16px, 3vw, 26px) 0;
  border-top: 0;
  padding: clamp(24px, 3.8vw, 42px) clamp(18px, 3.2vw, 38px);
  background: var(--night-900);
  border-radius: var(--radius-xl);
  color: var(--ab-onDark);
}

.page-about .about-sec--map .eyebrow {
  color: var(--neon-300);
}

.page-about .about-sec--map h2 {
  color: var(--ab-onDark);
}

.page-about .about-sec--map p {
  color: var(--ab-onDark-soft);
}

.page-about .about-map__lede {
  max-width: 44em;
}

.page-about .about-map__figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 20px 0 24px;
  padding: 0;
  list-style: none;
}

.page-about .about-map__figures li {
  padding: 13px 14px;
  background: var(--night-700);
  border-radius: var(--radius-md);
}

.page-about .about-map__figures b {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(19px, 3vw, 25px);
  font-weight: 700;
  line-height: 1.15;
  color: var(--neon-300);
}

.page-about .about-map__figures span {
  display: block;
  margin-top: 5px;
  font-size: 12.5px;
  color: var(--ab-onDark-soft);
}

.page-about .about-map__grid {
  display: grid;
  gap: 18px;
}

.page-about .about-map__figure {
  margin: 0;
}

.page-about .about-map__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.page-about .about-map__group {
  border-top: 1px solid rgba(247, 244, 236, .18);
  padding: 8px 0;
}

.page-about .about-map__group summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 6px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 700;
  color: var(--ab-onDark);
}

.page-about .about-map__group summary::-webkit-details-marker {
  display: none;
}

.page-about .about-map__group summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--orange-500);
}

.page-about .about-map__group[open] summary::after {
  content: "–";
}

.page-about .about-map__group summary:focus-visible {
  outline: 2px solid var(--neon-300);
  outline-offset: 3px;
}

.page-about .about-map__group p {
  margin: 8px 0 6px;
  font-size: 13.5px;
  line-height: 1.7;
}

/* ---------- 跨时区看球 ---------- */
.page-about .about-overseas {
  display: grid;
  gap: 18px;
  margin-top: 6px;
}

.page-about .about-overseas__card {
  padding: 20px;
  background: var(--celadon-100);
  border-radius: var(--radius-lg);
  border-top: 4px solid var(--celadon-500);
}

.page-about .about-overseas__card h3 {
  color: var(--celadon-700);
  font-size: 16px;
  margin-bottom: 12px;
}

.page-about .about-check {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-check li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 10px;
  font-size: 13.8px;
  line-height: 1.65;
  color: var(--night-900);
}

.page-about .about-check li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 9px;
  height: 9px;
  border-radius: 2px;
  background: var(--celadon-500);
}

.page-about .about-overseas__note {
  margin: 4px 0 0;
  font-size: 12.5px;
  color: var(--celadon-700);
  font-family: var(--font-mono);
  letter-spacing: .02em;
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline {
  position: relative;
  margin: 20px 0 0;
  padding: 0 0 0 26px;
  list-style: none;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(var(--celadon-500), var(--orange-500));
}

.page-about .about-timeline__item {
  position: relative;
  margin-bottom: 12px;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 15px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--paper-050);
  border: 3px solid var(--celadon-500);
}

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

.page-about .about-timeline__node {
  background: #fff;
  border: 1px solid var(--ab-line);
  border-radius: var(--radius-md);
  padding: 0 14px;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.page-about .about-timeline__node:hover {
  transform: translateY(-1px);
  border-color: var(--celadon-500);
  box-shadow: var(--shadow-1);
}

.page-about .about-timeline__node[open] {
  border-color: var(--celadon-500);
  box-shadow: var(--shadow-1);
}

.page-about .about-timeline__node summary {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--night-900);
}

.page-about .about-timeline__node summary::-webkit-details-marker {
  display: none;
}

.page-about .about-timeline__node summary:focus-visible {
  outline: 2px solid var(--celadon-500);
  outline-offset: 3px;
}

.page-about .about-timeline__year {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--orange-500);
}

.page-about .about-timeline__node p {
  margin: 0 0 14px;
  font-size: 13.8px;
  line-height: 1.7;
  color: var(--ab-soft);
  border-top: 1px dashed var(--ab-line);
  padding-top: 12px;
}

/* ---------- 团队 ---------- */
.page-about .about-sec--team {
  margin: clamp(16px, 3vw, 26px) 0;
  border-top: 0;
  padding: clamp(22px, 3.6vw, 40px) clamp(18px, 3.2vw, 36px);
  background: var(--celadon-100);
  border-radius: var(--radius-xl);
}

.page-about .about-sec--team .eyebrow {
  color: var(--celadon-700);
}

.page-about .about-team__grid {
  display: grid;
  gap: 18px;
}

.page-about .about-team__figure {
  margin: 0;
}

.page-about .about-team__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.page-about .about-team__figure figcaption {
  margin-top: 8px;
  font-size: 12.5px;
  color: var(--celadon-700);
}

.page-about .about-team__cards {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.page-about .about-team__card {
  padding: 14px 16px;
  background: rgba(247, 244, 236, .9);
  border-radius: var(--radius-md);
}

.page-about .about-team__card b {
  display: block;
  font-family: var(--font-mono);
  font-size: 23px;
  line-height: 1.2;
  color: var(--celadon-700);
}

.page-about .about-team__card p {
  margin: 4px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ab-soft);
}

/* ---------- 合作与荣誉 ---------- */
.page-about .about-sec--honor {
  margin: clamp(16px, 3vw, 26px) 0;
  border-top: 0;
  padding: clamp(22px, 3.6vw, 40px) clamp(18px, 3.2vw, 36px);
  background: var(--night-700);
  border-radius: var(--radius-xl);
  color: var(--ab-onDark);
}

.page-about .about-sec--honor .eyebrow {
  color: var(--orange-500);
}

.page-about .about-sec--honor h2 {
  color: var(--ab-onDark);
}

.page-about .about-sec--honor p {
  color: var(--ab-onDark-soft);
}

.page-about .about-partner {
  margin: 20px 0 26px;
  padding: 0;
  list-style: none;
}

.page-about .about-partner li {
  display: grid;
  gap: 2px 16px;
  padding: 11px 0;
  border-top: 1px solid rgba(247, 244, 236, .16);
}

.page-about .about-partner__k {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--neon-300);
}

.page-about .about-partner__v {
  font-size: 13.8px;
  color: var(--ab-onDark);
}

.page-about .about-honor__title {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: .12em;
  color: var(--ab-onDark-soft);
  margin: 0 0 4px;
}

.page-about .about-honor__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-honor__list li {
  display: grid;
  gap: 2px 14px;
  padding: 12px 0;
  border-top: 1px solid rgba(247, 244, 236, .16);
}

.page-about .about-honor__year {
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--orange-500);
}

.page-about .about-honor__name {
  font-family: var(--font-display);
  font-size: 14.5px;
  color: var(--ab-onDark);
}

.page-about .about-honor__note {
  font-size: 12.5px;
  color: var(--ab-onDark-soft);
}

/* ---------- 收束 ---------- */
.page-about .about-cta {
  position: relative;
  overflow: hidden;
  margin-top: clamp(24px, 4vw, 38px);
  padding: clamp(24px, 4vw, 42px);
  background: var(--night-900);
  border-radius: var(--radius-xl);
  color: var(--ab-onDark);
}

.page-about .about-cta::after {
  content: "";
  position: absolute;
  right: -50px;
  bottom: -70px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242, 138, 46, .38), rgba(242, 138, 46, 0) 70%);
  pointer-events: none;
}

.page-about .about-cta h2 {
  position: relative;
  z-index: 1;
  font-family: var(--font-display);
  font-size: clamp(20px, 3.2vw, 30px);
  line-height: 1.3;
  margin: 0 0 12px;
  color: var(--ab-onDark);
}

.page-about .about-cta p {
  position: relative;
  z-index: 1;
  margin: 0;
  max-width: 46em;
  font-size: clamp(14px, 1.6vw, 15.5px);
  color: var(--ab-onDark-soft);
}

.page-about .about-cta__links {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-about .about-cta__link {
  display: inline-flex;
  align-items: center;
  padding: 10px 18px;
  border: 1px solid rgba(247, 244, 236, .38);
  border-radius: 999px;
  color: var(--ab-onDark);
  font-size: 13.5px;
  text-decoration: none;
  transition: background .18s ease, border-color .18s ease, transform .18s ease;
}

.page-about .about-cta__link:hover {
  background: rgba(247, 244, 236, .14);
  transform: translateY(-1px);
}

.page-about .about-cta__link--primary {
  background: var(--orange-500);
  border-color: var(--orange-500);
  color: var(--night-900);
  font-weight: 700;
}

.page-about .about-cta__link--primary:hover {
  background: #ff9a3d;
  border-color: #ff9a3d;
}

.page-about .about-cta__link:focus-visible {
  outline: 2px solid var(--neon-300);
  outline-offset: 3px;
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 780px) {
  .page-about .about-map__grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
    gap: 24px;
  }

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

  .page-about .about-team__cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-team__grid {
    grid-template-columns: 1.1fr .9fr;
    align-items: start;
    gap: 28px;
  }

  .page-about .about-partner li {
    grid-template-columns: 190px 1fr;
    align-items: baseline;
  }

  .page-about .about-honor__list li {
    grid-template-columns: 70px 1fr 1fr;
    align-items: baseline;
  }
}

@media (min-width: 880px) {
  .page-about .about-hero__grid {
    grid-template-columns: 5fr 6fr;
    align-items: center;
    gap: clamp(32px, 4.5vw, 64px);
  }

  .page-about .about-overseas {
    grid-template-columns: 1.2fr .8fr;
    gap: 26px;
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-about .about-body {
    grid-template-columns: minmax(180px, 236px) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 68px);
    align-items: start;
  }

  .page-about .about-index {
    position: sticky;
    top: 96px;
    padding: 22px 18px;
    border: 1px solid var(--ab-line);
    border-radius: var(--radius-lg);
    background: #fff;
    box-shadow: var(--shadow-1);
  }

  .page-about .about-index__slogan {
    display: block;
    margin: 0 0 16px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--celadon-500);
    font-family: var(--font-display);
    font-size: 16.5px;
    font-weight: 700;
    line-height: 1.55;
    letter-spacing: .02em;
    color: var(--night-900);
  }

  .page-about .about-index__list {
    display: block;
    overflow: visible;
    padding: 0;
  }

  .page-about .about-index__list li {
    margin-bottom: 2px;
  }

  .page-about .about-index__link {
    display: flex;
    width: 100%;
    padding: 8px 10px;
    border: 0;
    border-radius: var(--radius-sm);
    background: transparent;
    white-space: normal;
    line-height: 1.5;
  }

  .page-about .about-index__link:hover {
    background: var(--celadon-100);
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-index__link,
  .page-about .about-timeline__node,
  .page-about .about-cta__link {
    transition: none;
  }

  .page-about .about-index__link:hover,
  .page-about .about-timeline__node:hover,
  .page-about .about-cta__link:hover {
    transform: none;
  }
}
<<<END>>>