.page-about {
  --about-line: rgba(139, 92, 246, 0.3);
  --about-line-soft: rgba(169, 159, 208, 0.22);
  --about-card-bg: linear-gradient(150deg, rgba(22, 11, 51, 0.95), rgba(10, 6, 24, 0.88));
  --about-text: rgba(245, 242, 255, 0.82);
  display: block;
  position: relative;
  color: var(--mist);
  font-family: var(--font-sans);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  padding: clamp(26px, 4vw, 48px) 0 clamp(56px, 8vw, 108px);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -22%;
  right: -14%;
  width: min(660px, 82vw);
  aspect-ratio: 1 / 0.72;
  background: linear-gradient(150deg, rgba(139, 92, 246, 0.42), rgba(34, 211, 238, 0.16) 55%, rgba(255, 138, 61, 0.22));
  transform: rotate(var(--skew-a));
  border-radius: 30px;
  opacity: 0.5;
  pointer-events: none;
  z-index: 0;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: -16%;
  bottom: -30%;
  width: min(520px, 74vw);
  aspect-ratio: 1 / 0.62;
  background: linear-gradient(24deg, rgba(34, 211, 238, 0.2), transparent 72%);
  transform: rotate(var(--skew-b));
  pointer-events: none;
  z-index: 0;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
}

.page-about .breadcrumbs {
  margin-bottom: clamp(24px, 4vw, 46px);
}

.page-about .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--muted);
}

.page-about .breadcrumbs__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-about .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  color: rgba(169, 159, 208, 0.45);
}

.page-about .breadcrumbs__link {
  color: var(--muted);
  text-decoration: none;
  transition: color 180ms ease;
}

.page-about .breadcrumbs__link:hover,
.page-about .breadcrumbs__link:focus-visible {
  color: var(--laser);
}

.page-about .breadcrumbs__current {
  color: var(--mist);
}

.page-about .about-hero__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 46px);
}

.page-about .about-hero__title {
  margin: 14px 0 0;
  font-size: clamp(38px, 7.4vw, 94px);
  font-weight: 200;
  line-height: 1.05;
  letter-spacing: -0.015em;
  color: var(--mist);
  text-wrap: balance;
}

.page-about .about-hero__title br {
  display: none;
}

.page-about .about-hero__lede {
  margin: 24px 0 0;
  max-width: 40ch;
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--about-text);
}

.page-about .about-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(26px, 3.4vw, 38px);
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-hero__stats .stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  border: 1px solid var(--about-line);
  border-radius: 14px;
  background: linear-gradient(160deg, rgba(139, 92, 246, 0.16), rgba(22, 11, 51, 0.72));
}

.page-about .about-hero__stats .stat__value {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.4vw, 30px);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
}

.page-about .about-hero__stats .stat__label {
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

@media (min-width: 720px) {
  .page-about .about-hero__title br {
    display: block;
  }
}

@media (min-width: 960px) {
  .page-about .about-hero__body {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, 0.78fr);
    align-items: end;
    gap: clamp(36px, 5vw, 76px);
  }

  .page-about .about-hero__stats {
    transform: translateY(-6px);
  }
}

/* ---------- 章节通用 ---------- */

.page-about .about-section {
  position: relative;
  padding: clamp(48px, 6.6vw, 94px) 0;
}

.page-about .about-section + .about-section {
  border-top: 1px solid rgba(139, 92, 246, 0.12);
}

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

.page-about .section__title {
  margin: 10px 0 0;
  font-size: clamp(27px, 4vw, 44px);
  font-weight: 300;
  line-height: 1.2;
  letter-spacing: -0.008em;
  color: var(--mist);
  text-wrap: balance;
}

.page-about .lede {
  margin: 18px 0 0;
  max-width: 44ch;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(169, 159, 208, 0.95);
}

.page-about .eyebrow {
  color: var(--violet);
}

/* ---------- 起点 ---------- */

.page-about .about-origin__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}

.page-about .about-origin__copy p {
  margin: 18px 0 0;
  max-width: 42ch;
  font-size: 16.5px;
  line-height: 1.92;
  color: var(--about-text);
}

.page-about .about-origin__copy p:first-of-type {
  margin-top: 24px;
}

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

@media (min-width: 900px) {
  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.94fr);
    align-items: center;
  }

  .page-about .about-origin__figure {
    transform: translateY(30px);
  }
}

/* ---------- 点位 ---------- */

.page-about .about-venues__stage {
  margin-top: clamp(30px, 4vw, 52px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 3.6vw, 48px);
  align-items: start;
}

.page-about .about-map {
  position: relative;
  width: 100%;
  aspect-ratio: 400 / 320;
  border: 1px solid var(--about-line-soft);
  border-radius: 22px;
  background: radial-gradient(circle at 62% 34%, rgba(139, 92, 246, 0.16), transparent 62%),
    linear-gradient(160deg, rgba(22, 11, 51, 0.7), rgba(10, 6, 24, 0.85));
}

.page-about .about-map__shape {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.page-about .about-map__shape path {
  fill: rgba(34, 211, 238, 0.07);
  stroke: rgba(34, 211, 238, 0.42);
  stroke-width: 1.4;
  stroke-dasharray: 6 5;
  vector-effect: non-scaling-stroke;
}

.page-about .about-map__spot {
  position: absolute;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  transform: translate(-50%, -50%);
  outline: none;
}

.page-about .about-map__spot i {
  display: block;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.16), 0 0 16px rgba(34, 211, 238, 0.75);
  transition: transform 200ms ease;
}

.page-about .about-map__spot--home i {
  background: var(--orange);
  box-shadow: 0 0 0 5px rgba(255, 138, 61, 0.18), 0 0 20px rgba(255, 138, 61, 0.85);
}

.page-about .about-map__spot b {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.12em;
  white-space: nowrap;
  color: var(--mist);
  padding: 2px 9px;
  border: 1px solid var(--about-line-soft);
  border-radius: 999px;
  background: rgba(10, 6, 24, 0.86);
}

.page-about .about-map__spot em {
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  white-space: nowrap;
  font-style: normal;
  font-size: 11px;
  letter-spacing: 0.04em;
  padding: 5px 10px;
  border: 1px solid var(--about-line);
  border-radius: 8px;
  background: rgba(22, 11, 51, 0.97);
  color: var(--laser);
  opacity: 0;
  pointer-events: none;
  transition: opacity 200ms ease, transform 200ms ease;
}

.page-about .about-map__spot:hover i,
.page-about .about-map__spot:focus-visible i {
  transform: scale(1.35);
}

.page-about .about-map__spot:hover em,
.page-about .about-map__spot:focus-visible em {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.page-about .about-venues__notes {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-note {
  display: grid;
  gap: 10px;
  padding: 18px 20px;
  border: 1px solid var(--about-line);
  border-radius: 14px;
  background: var(--about-card-bg);
}

.page-about .about-note p {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--about-text);
}

.page-about .about-note a {
  color: var(--laser);
  text-decoration: none;
  border-bottom: 1px solid rgba(125, 249, 255, 0.4);
}

.page-about .about-note a:hover,
.page-about .about-note a:focus-visible {
  border-bottom-color: var(--laser);
}

@media (min-width: 900px) {
  .page-about .about-venues__stage {
    grid-template-columns: minmax(0, 1.36fr) minmax(0, 1fr);
  }
}

/* ---------- 团队 ---------- */

.page-about .about-team__tree {
  margin-top: clamp(30px, 4vw, 48px);
}

.page-about .about-team__root {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 13px 24px;
  border: 1px solid rgba(255, 138, 61, 0.5);
  border-radius: 999px;
  background: linear-gradient(120deg, rgba(255, 138, 61, 0.18), rgba(139, 92, 246, 0.16));
  box-shadow: 0 0 34px -14px rgba(255, 138, 61, 0.85);
}

.page-about .about-team__root-num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
}

.page-about .about-team__root-label {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--mist);
}

.page-about .about-team__link {
  display: block;
  width: 1px;
  height: 26px;
  margin-left: 36px;
  background: linear-gradient(180deg, rgba(255, 138, 61, 0.85), rgba(34, 211, 238, 0.4));
}

.page-about .about-team__branches {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-about .about-team__branch {
  padding: 22px 24px;
  border: 1px solid var(--about-line);
  border-radius: 16px;
  background: var(--about-card-bg);
  outline: none;
  transition: border-color 220ms ease, box-shadow 220ms ease, transform 220ms ease;
}

.page-about .about-team__branch:hover,
.page-about .about-team__branch:focus-visible {
  border-color: rgba(34, 211, 238, 0.7);
  box-shadow: 0 0 0 1px rgba(34, 211, 238, 0.22), 0 24px 48px -34px rgba(34, 211, 238, 0.95);
  transform: translateY(-3px);
}

.page-about .about-team__branch-title {
  margin: 0 0 14px;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--laser);
}

.page-about .about-team__duties {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-team__duties li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--about-text);
}

.page-about .about-team__duties li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(34, 211, 238, 0.85);
}

.page-about .about-team__photo {
  margin: clamp(30px, 4vw, 48px) 0 0;
}

@media (min-width: 760px) {
  .page-about .about-team__branches {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }
}

/* ---------- 服务准则 ---------- */

.page-about .about-standards__grid {
  margin-top: clamp(30px, 4vw, 48px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 3.6vw, 44px);
  align-items: start;
}

.page-about .about-standards__folds {
  display: grid;
  gap: 12px;
}

.page-about .about-standards__fold {
  border: 1px solid var(--about-line);
  border-radius: 14px;
  background: var(--about-card-bg);
  overflow: hidden;
}

.page-about .about-standards__fold .fold__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 17px 20px;
  border: 0;
  background: transparent;
  color: var(--mist);
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-align: left;
  cursor: pointer;
}

.page-about .about-standards__fold .fold__trigger:hover,
.page-about .about-standards__fold .fold__trigger:focus-visible {
  color: var(--orange);
  outline: none;
}

.page-about .about-standards__fold .fold__body {
  padding: 0 20px 18px;
}

.page-about .about-standards__fold .fold__body p {
  margin: 0;
  max-width: 44ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--about-text);
}

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

@media (min-width: 940px) {
  .page-about .about-standards__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: start;
  }
}

/* ---------- 时间线 ---------- */

.page-about .about-timeline__list {
  margin: clamp(30px, 4vw, 52px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: clamp(16px, 2.4vw, 24px);
  counter-reset: tstep;
}

.page-about .about-timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-about .about-timeline__year {
  font-family: var(--font-mono);
  font-size: clamp(34px, 5.4vw, 58px);
  font-weight: 200;
  line-height: 1;
  letter-spacing: 0.01em;
  color: rgba(255, 201, 77, 0.92);
  text-shadow: 0 0 26px rgba(255, 201, 77, 0.28);
}

.page-about .about-timeline__card {
  border: 1px solid var(--about-line);
  border-radius: 15px;
  background: var(--about-card-bg);
  box-shadow: 0 22px 46px -40px rgba(139, 92, 246, 0.95);
  overflow: hidden;
}

.page-about .about-timeline__card .fold__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  border: 0;
  background: transparent;
  color: var(--mist);
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
}

.page-about .about-timeline__card .fold__trigger:hover,
.page-about .about-timeline__card .fold__trigger:focus-visible {
  color: var(--laser);
  outline: none;
}

.page-about .about-timeline__card .fold__body {
  padding: 0 20px 18px;
}

.page-about .about-timeline__facts {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-timeline__facts li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--about-text);
}

.page-about .about-timeline__facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.74em;
  width: 7px;
  height: 1px;
  background: var(--violet);
  box-shadow: 0 0 8px rgba(139, 92, 246, 0.9);
}

@media (min-width: 760px) {
  .page-about .about-timeline__item {
    grid-template-columns: clamp(112px, 13vw, 158px) minmax(0, 1fr);
    align-items: start;
    gap: 22px;
  }

  .page-about .about-timeline__item:nth-child(2) {
    margin-left: 3.5%;
  }

  .page-about .about-timeline__item:nth-child(3) {
    margin-left: 7%;
  }

  .page-about .about-timeline__item:nth-child(4) {
    margin-left: 10.5%;
  }

  .page-about .about-timeline__item:nth-child(5) {
    margin-left: 14%;
  }

  .page-about .about-timeline__item:nth-child(6) {
    margin-left: 17.5%;
  }
}

/* ---------- 资质 ---------- */

.page-about .about-honor__grid {
  margin-top: clamp(30px, 4vw, 50px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-about .about-honor__card {
  padding: 24px 24px 26px;
  border: 1px solid rgba(237, 231, 220, 0.6);
  border-radius: 6px 18px 6px 18px;
  background: var(--paper);
  box-shadow: 8px 10px 0 -4px rgba(139, 92, 246, 0.22), 0 24px 46px -38px rgba(0, 0, 0, 0.9);
}

.page-about .about-honor__card .tag {
  display: inline-block;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
}

.page-about .about-honor__card-title {
  margin: 0 0 12px;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #1b1038;
}

.page-about .about-honor__card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: #3f3263;
}

@media (min-width: 800px) {
  .page-about .about-honor__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 合作生态 ---------- */

.page-about .about-coop__grid {
  margin-top: clamp(30px, 4vw, 50px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-about .about-coop__block {
  padding: 22px 24px 24px;
  border: 1px solid var(--about-line);
  border-radius: 16px;
  background: var(--about-card-bg);
  border-left: 3px solid rgba(34, 211, 238, 0.7);
}

.page-about .about-coop__block--wide {
  border-left-color: rgba(255, 138, 61, 0.8);
}

.page-about .about-coop__block-title {
  margin: 0 0 12px;
  font-size: 16.5px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--laser);
}

.page-about .about-coop__block--wide .about-coop__block-title {
  color: var(--orange);
}

.page-about .about-coop__block p {
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.86;
  color: var(--about-text);
}

.page-about .about-coop__block a {
  color: var(--laser);
  text-decoration: none;
  border-bottom: 1px solid rgba(125, 249, 255, 0.4);
}

.page-about .about-coop__block a:hover,
.page-about .about-coop__block a:focus-visible {
  border-bottom-color: var(--laser);
}

.page-about .about-coop__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

@media (min-width: 840px) {
  .page-about .about-coop__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-coop__block--wide {
    grid-column: 1 / -1;
  }
}

/* ---------- 收尾 ---------- */

.page-about .about-closing {
  padding-bottom: clamp(64px, 9vw, 118px);
}

.page-about .about-closing__panel {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 44px);
  padding: clamp(26px, 4vw, 44px);
  border: 1px solid var(--about-line);
  border-radius: 22px;
  background: linear-gradient(140deg, rgba(139, 92, 246, 0.2), rgba(22, 11, 51, 0.94) 48%, rgba(34, 211, 238, 0.14));
  overflow: hidden;
}

.page-about .about-closing__panel::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -18%;
  width: min(380px, 62vw);
  aspect-ratio: 1 / 0.8;
  background: linear-gradient(200deg, rgba(255, 138, 61, 0.24), transparent 70%);
  transform: rotate(var(--skew-a));
  pointer-events: none;
}

.page-about .about-closing__copy,
.page-about .about-closing__contact {
  position: relative;
  z-index: 1;
}

.page-about .about-closing__title {
  margin: 10px 0 0;
  font-size: clamp(24px, 3.2vw, 34px);
  font-weight: 300;
  line-height: 1.24;
  color: var(--mist);
}

.page-about .about-closing__copy p {
  margin: 16px 0 0;
  max-width: 42ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--about-text);
}

.page-about .about-closing__contact {
  display: grid;
  gap: 12px;
  align-content: start;
}

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

.page-about .about-closing__key {
  min-width: 48px;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--muted);
}

.page-about .about-closing__value {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--mist);
  word-break: break-word;
}

.page-about .about-closing__contact .btn {
  justify-self: start;
  margin-top: 8px;
}

@media (min-width: 880px) {
  .page-about .about-closing__panel {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: center;
  }
}

/* ---------- 图片与动效收敛 ---------- */

.page-about img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-about .media-frame img {
  width: 100%;
  object-fit: cover;
}

.page-about .media-frame--tall img {
  aspect-ratio: 1 / 1;
}

.page-about .media-frame--wide img {
  aspect-ratio: 14 / 9;
}

.page-about .media-frame--skew img {
  aspect-ratio: 3 / 2;
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    transform: none !important;
  }
}
<<<END>>>