.page-about {
  --about-body: #D7DEF7;
  --about-shadow: 0 18px 48px rgba(7, 11, 26, 0.55);
}

.page-about .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
  font-family: var(--font-mono);
  color: var(--muted);
}

.page-about .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

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

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

.page-about .breadcrumb__current {
  color: var(--text);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(24px, 5vw, 48px) 0 clamp(36px, 6vw, 72px);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: -20% -25% 30% -15%;
  background:
    radial-gradient(58% 62% at 18% 18%, rgba(57, 240, 218, 0.18), transparent 72%),
    radial-gradient(48% 52% at 88% 6%, rgba(255, 79, 154, 0.14), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

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

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(20px, 3vw, 32px);
  align-items: end;
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-size: clamp(34px, 7.4vw, 76px);
  line-height: 1.06;
  letter-spacing: -0.03em;
  margin: 14px 0 18px;
  color: var(--text);
}

.page-about .about-hero__intro {
  max-width: 58ch;
  margin: 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--about-body);
}

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

.page-about .about-hero__card {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: start;
  gap: 16px;
  padding: clamp(20px, 3vw, 28px);
  background: linear-gradient(160deg, var(--ink-800), var(--ink-700));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--about-shadow);
}

.page-about .about-facts {
  display: grid;
  gap: 12px;
  margin: 0;
}

.page-about .about-facts__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 14px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--line);
}

.page-about .about-facts__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .about-facts dt {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-about .about-facts dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text);
}

.page-about .about-hero__vert {
  writing-mode: vertical-rl;
  margin: 0;
  justify-self: end;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--cyan);
  opacity: 0.75;
}

/* ---------- 章节通用 ---------- */
.page-about .about-section {
  padding: clamp(40px, 7vw, 88px) 0;
}

.page-about .about-section__head {
  display: grid;
  gap: 12px;
  max-width: 64ch;
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-about .about-section__title {
  font-family: var(--font-display);
  font-size: clamp(26px, 3.6vw, 42px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--text);
}

.page-about .about-section__lead {
  margin: 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--muted);
}

.page-about .about-section p {
  line-height: 1.8;
  color: var(--about-body);
}

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

.page-about .media__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}

.page-about .media__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 起点与定位 ---------- */
.page-about .about-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
}

.page-about .about-origin__text p {
  margin: 0 0 14px;
}

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

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

.page-about .about-origin__item {
  display: grid;
  grid-template-columns: 44px 1fr;
  align-items: start;
  gap: 14px;
  padding: 18px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}

.page-about .about-origin__mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--cyan);
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--cyan);
}

.page-about .about-origin__item p {
  margin: 4px 0 0;
  font-size: 15px;
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline__figure {
  margin-bottom: clamp(24px, 4vw, 36px);
}

.page-about .about-timeline__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-about .about-timeline__jump a {
  display: inline-block;
  padding: 7px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--ease), border-color var(--ease), background-color var(--ease);
}

.page-about .about-timeline__jump a:hover,
.page-about .about-timeline__jump a:focus-visible {
  color: var(--ink-900);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-about .about-timeline__list {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 30px;
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-about .about-timeline__list::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--cyan), rgba(57, 240, 218, 0.35) 55%, rgba(57, 240, 218, 0));
}

.page-about .about-timeline__item {
  position: relative;
  scroll-margin-top: 88px;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 0 4px rgba(57, 240, 218, 0.12);
}

.page-about .about-timeline__year {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.22em;
  color: var(--gold);
}

.page-about .about-timeline__body {
  padding: clamp(16px, 2.4vw, 24px);
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  transition: border-color var(--ease), transform var(--ease);
}

.page-about .about-timeline__body:hover {
  border-color: rgba(57, 240, 218, 0.55);
  transform: translateY(-2px);
}

.page-about .about-timeline__body h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 20px);
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-about .about-timeline__body p {
  margin: 0;
  font-size: 15px;
}

/* ---------- 数据带 ---------- */
.page-about .about-band {
  padding: clamp(26px, 4vw, 44px) 0;
  background: linear-gradient(90deg, rgba(57, 240, 218, 0.12), rgba(243, 196, 107, 0.08) 58%, rgba(255, 79, 154, 0.1));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-band__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(18px, 3vw, 28px);
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-band__item {
  display: grid;
  gap: 4px;
  align-content: start;
}

.page-about .about-band__num {
  font-family: var(--font-display);
  font-size: clamp(34px, 7vw, 58px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--text);
}

.page-about .about-band__unit {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
}

.page-about .about-band__label {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 内容与方法 ---------- */
.page-about .about-craft__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

.page-about .about-craft__text p {
  margin: 0 0 16px;
}

.page-about .about-craft__list {
  display: grid;
  gap: 12px;
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}

.page-about .about-craft__list li {
  display: grid;
  gap: 4px;
  padding: 14px 0 14px 18px;
  border-left: 2px solid var(--gold);
  background: linear-gradient(90deg, rgba(243, 196, 107, 0.08), transparent 70%);
}

.page-about .about-craft__list strong {
  font-size: 15px;
  color: var(--text);
}

.page-about .about-craft__list span {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 团队 ---------- */
.page-about .about-teams__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-about .about-team {
  padding: 20px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  transition: border-color var(--ease), transform var(--ease), box-shadow var(--ease);
}

.page-about .about-team:hover {
  border-color: rgba(143, 248, 236, 0.6);
  transform: translateY(-4px);
  box-shadow: 0 14px 32px rgba(7, 11, 26, 0.6);
}

.page-about .about-team__index {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin-bottom: 10px;
}

.page-about .about-team__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--text);
}

.page-about .about-team__text {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--about-body);
}

.page-about .about-team__detail {
  margin: 0;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  transition: color var(--ease);
}

.page-about .about-team:hover .about-team__detail {
  color: var(--mist);
}

/* ---------- 会员体验 ---------- */
.page-about .about-labels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .about-labels__col {
  padding: clamp(18px, 2.6vw, 26px);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--ink-800);
  border-top-width: 3px;
}

.page-about .about-labels__col--cyan {
  border-top-color: var(--cyan);
}

.page-about .about-labels__col--gold {
  border-top-color: var(--gold);
}

.page-about .about-labels__col--magenta {
  border-top-color: var(--magenta);
}

.page-about .about-labels__col h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 19px;
  color: var(--text);
}

.page-about .about-labels__note {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-labels__pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-labels__pills .pill {
  font-size: 13px;
}

.page-about .about-member__foot {
  max-width: 70ch;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding-left: 18px;
  border-left: 2px solid var(--cyan);
  font-size: 15px;
}

/* ---------- 收束 ---------- */
.page-about .about-final__figure {
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-about .about-final__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 44px);
}

.page-about .about-final__col p {
  margin: 0 0 14px;
}

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

.page-about .about-final__contact {
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, var(--ink-800), var(--ink-700));
}

.page-about .about-final__contact h3 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 19px;
  color: var(--text);
}

.page-about .about-final__mail {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.4vw, 18px);
  overflow-wrap: anywhere;
}

.page-about .about-final__mail a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 240, 218, 0.4);
}

.page-about .about-final__mail a:hover,
.page-about .about-final__mail a:focus-visible {
  color: var(--mist);
}

.page-about .about-final__meta {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-cta {
  display: grid;
  gap: 16px;
  margin-top: clamp(28px, 4vw, 44px);
  padding: clamp(20px, 3vw, 30px);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(243, 196, 107, 0.35);
  background: linear-gradient(120deg, rgba(243, 196, 107, 0.12), rgba(57, 240, 218, 0.08));
}

.page-about .about-cta__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-about .about-band__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-teams__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-labels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-about .about-hero__grid {
    grid-template-columns: 1.45fr 0.85fr;
  }

  .page-about .about-split {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
  }

  .page-about .about-craft__grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-about .about-craft__figure {
    margin-top: -28px;
  }

  .page-about .about-final__grid {
    grid-template-columns: 1.25fr 0.95fr;
    align-items: start;
  }

  .page-about .about-timeline__item {
    display: grid;
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 0 24px;
  }

  .page-about .about-timeline__year {
    margin: 2px 0 0;
    text-align: right;
    letter-spacing: 0.12em;
  }

  .page-about .about-timeline__item:nth-child(even) .about-timeline__body {
    margin-left: clamp(0px, 4vw, 56px);
  }

  .page-about .about-timeline__item:nth-child(odd) .about-timeline__body {
    margin-right: clamp(0px, 4vw, 56px);
  }
}

@media (min-width: 1100px) {
  .page-about .about-labels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-about .about-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-about .about-hero__card {
    padding: 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-team,
  .page-about .about-timeline__body,
  .page-about .about-timeline__jump a {
    transition: none;
  }

  .page-about .about-team:hover,
  .page-about .about-timeline__body:hover {
    transform: none;
  }
}
<<<END>>>