.page-about {
  --about-gap: clamp(20px, 3vw, 38px);
  --about-block: clamp(28px, 4.4vw, 56px);
  display: block;
  overflow-wrap: break-word;
}

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

.page-about .section-head {
  margin-bottom: clamp(22px, 3.2vw, 38px);
}

.page-about .about-head__title,
.page-about .about-paths__head h2,
.page-about .about-team__head h2,
.page-about .about-tags__head h2,
.page-about .about-scenes__head h2 {
  margin: 6px 0 0;
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--about-gap);
  padding-top: clamp(18px, 2.6vw, 30px);
  padding-bottom: clamp(30px, 5vw, 62px);
}

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

.page-about .about-hero__lead .lede {
  max-width: 60ch;
}

.page-about .about-origin {
  list-style: none;
  margin: clamp(24px, 3.4vw, 36px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(14px, 2vw, 22px);
}

.page-about .about-origin__item {
  position: relative;
  padding-left: 26px;
}

.page-about .about-origin__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--abyss);
  border: 1px solid var(--accent);
  box-shadow: 0 0 12px -2px rgba(54, 241, 205, .75);
}

.page-about .about-origin__item::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 19px;
  bottom: -10px;
  width: 1px;
  background: linear-gradient(180deg, rgba(54, 241, 205, .45), rgba(31, 74, 95, .18));
}

.page-about .about-origin__item:last-child::after {
  display: none;
}

.page-about .about-origin__stage {
  margin: 0;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--coral);
}

.page-about .about-origin__title {
  margin: 5px 0 4px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text);
}

.page-about .about-origin__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-muted);
}

.page-about .about-hero__aside {
  display: grid;
  gap: clamp(14px, 1.8vw, 20px);
  align-content: start;
  min-width: 0;
}

.page-about .about-hero__fig {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--midnight);
  box-shadow: var(--shadow-2);
}

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

.page-about .about-hero__badge {
  padding: clamp(16px, 2vw, 22px);
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease);
}

.page-about .about-hero__badge:hover {
  border-color: rgba(54, 241, 205, .5);
  box-shadow: var(--shadow-2), 0 0 0 1px rgba(54, 241, 205, .2);
}

.page-about .about-hero__badge-num {
  margin: 6px 0 10px;
  font-size: clamp(26px, 3.4vw, 34px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--accent);
  letter-spacing: -.01em;
}

/* ---------- 路径对比 ---------- */

.page-about .about-paths__track {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--border);
  display: grid;
  gap: clamp(20px, 2.8vw, 30px);
}

.page-about .about-paths__item {
  position: relative;
  padding-left: clamp(18px, 2.4vw, 30px);
  min-width: 0;
}

.page-about .about-paths__item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--abyss);
  border: 1px solid var(--border);
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease);
}

.page-about .about-paths__item--new::before {
  border-color: var(--accent);
  box-shadow: 0 0 14px -2px rgba(54, 241, 205, .8);
}

.page-about .about-paths__item:hover::before {
  border-color: var(--accent);
  box-shadow: 0 0 16px -2px rgba(54, 241, 205, .9);
}

.page-about .about-paths__time {
  margin: 0;
  font-size: 12px;
  letter-spacing: .12em;
}

.page-about .about-paths__item--old .about-paths__time {
  color: var(--text-dim);
}

.page-about .about-paths__item--new .about-paths__time {
  color: var(--coral);
}

.page-about .about-paths__title {
  margin: 7px 0 6px;
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 700;
  line-height: 1.45;
}

.page-about .about-paths__item--old .about-paths__title {
  color: var(--text-muted);
}

.page-about .about-paths__item--new .about-paths__title {
  color: var(--text);
}

.page-about .about-paths__text {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-muted);
}

.page-about .about-paths__item--new .about-paths__text {
  color: var(--text);
}

/* ---------- 团队分工 ---------- */

.page-about .about-team__intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--about-gap);
  margin-bottom: clamp(26px, 3.8vw, 44px);
}

.page-about .about-team__copy p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--text-muted);
}

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

.page-about .about-team__fig {
  margin: 0;
  padding: clamp(12px, 1.6vw, 18px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--midnight);
  box-shadow: var(--shadow-1);
}

.page-about .about-team__fig img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.page-about .about-team__fig figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--text-dim);
}

.page-about .about-team__cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 1.8vw, 22px);
}

.page-about .about-team__card {
  padding: clamp(16px, 2vw, 22px);
  transition: transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}

.page-about .about-team__card:hover,
.page-about .about-team__card:focus-visible {
  transform: translateY(-4px);
  border-color: rgba(54, 241, 205, .55);
  box-shadow: var(--shadow-2), 0 0 0 1px rgba(54, 241, 205, .22);
  outline: none;
}

.page-about .about-team__num {
  display: block;
  margin: 6px 0 10px;
  font-size: clamp(24px, 3vw, 30px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--accent);
}

/* ---------- 职责标签筛选 ---------- */

.page-about .about-tabs {
  margin-top: clamp(30px, 4.2vw, 52px);
  padding-top: clamp(20px, 2.6vw, 30px);
  border-top: 1px solid var(--border);
}

.page-about .about-tabs__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: clamp(18px, 2.4vw, 26px);
}

.page-about .about-tabs__btn {
  appearance: none;
  font: inherit;
  font-size: 14px;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(18, 58, 82, .5);
  color: var(--text-muted);
  cursor: pointer;
  transition: color .25s var(--ease), border-color .25s var(--ease), background-color .25s var(--ease), box-shadow .25s var(--ease);
}

.page-about .about-tabs__btn:hover {
  color: var(--text);
  border-color: rgba(54, 241, 205, .4);
}

.page-about .about-tabs__btn[aria-selected="true"] {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(54, 241, 205, .12);
  box-shadow: 0 0 0 1px rgba(54, 241, 205, .2);
}

.page-about .about-tabs__btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.page-about .about-tabs__panel {
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.page-about .about-tabs__panel[hidden] {
  display: none;
}

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

.page-about .about-tabs__list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-muted);
}

.page-about .about-tabs__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 9px;
  height: 1px;
  background: var(--accent);
}

/* ---------- 分类标签演进 ---------- */

.page-about .about-tags__map {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2.4vw, 26px);
}

.page-about .about-tags__old,
.page-about .about-tags__new {
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  min-width: 0;
}

.page-about .about-tags__new {
  background: linear-gradient(158deg, rgba(18, 58, 82, .92), rgba(11, 36, 56, .92));
  border-color: rgba(54, 241, 205, .32);
  box-shadow: var(--shadow-1);
}

.page-about .about-tags__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.page-about .about-tags__new .about-tags__label {
  color: var(--accent);
}

.page-about .about-tags__list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 16px 0;
  padding: 0;
}

.page-about .about-tags__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-muted);
}

/* ---------- 场景档案 ---------- */

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

.page-about .about-scenes__cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 1.8vw, 20px);
}

.page-about .about-scenes__card {
  padding: clamp(16px, 2vw, 22px);
  transition: transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}

.page-about .about-scenes__card:hover,
.page-about .about-scenes__card:focus-visible {
  transform: translateY(-4px);
  border-color: rgba(34, 211, 238, .5);
  box-shadow: var(--shadow-2), 0 0 0 1px rgba(34, 211, 238, .2);
  outline: none;
}

.page-about .about-scenes__fig {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--midnight);
  box-shadow: var(--shadow-2);
}

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

/* ---------- 下一步入口 ---------- */

.page-about .about-next {
  border-top: 1px solid var(--border);
  padding-top: clamp(24px, 3.2vw, 40px);
  padding-bottom: clamp(24px, 3.2vw, 40px);
}

.page-about .about-next__title {
  margin: 0 0 12px;
  font-size: var(--step-h3);
  line-height: 1.4;
}

.page-about .about-next__text {
  margin: 0 0 20px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-muted);
}

.page-about .about-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 680px) {
  .page-about .about-team__cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-about .about-tags__map {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, .96fr);
    align-items: start;
  }

  .page-about .about-team__intro {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: center;
  }

  .page-about .about-scenes__body {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, .72fr);
    align-items: start;
  }

  .page-about .about-hero__badge {
    margin-left: clamp(20px, 5vw, 64px);
  }

  .page-about .about-paths__track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(24px, 3.4vw, 48px);
    row-gap: clamp(22px, 3vw, 34px);
  }
}

@media (min-width: 1080px) {
  .page-about .about-team__cards {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    align-items: start;
  }

  .page-about .about-team__card:nth-child(even) {
    margin-top: 24px;
  }
}
<<<END>>>