.page-about {
  --about-gutter: clamp(1.25rem, 4vw, 2.5rem);
  --about-line: var(--grid);
  padding-bottom: clamp(3rem, 7vw, 5.5rem);
  color: var(--white);
  font-family: var(--font-body);
}

.page-about .breadcrumb {
  margin-top: 1.5rem;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  margin-top: 1.25rem;
  padding: clamp(2.5rem, 8vw, 5.5rem) 0 clamp(3rem, 9vw, 6rem);
  overflow: hidden;
  background:
    radial-gradient(120% 95% at 82% -10%, rgba(34, 240, 214, 0.16), transparent 62%),
    linear-gradient(158deg, var(--deep-2) 0%, var(--deep) 68%);
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -45%;
  width: 62%;
  height: 130%;
  background: linear-gradient(180deg, rgba(34, 240, 214, 0.12), transparent 72%);
  clip-path: polygon(38% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  display: grid;
  gap: 1.25rem;
}

.page-about .about-hero h1 {
  margin: 0;
  max-width: 18ch;
  font-family: var(--font-display);
  font-size: clamp(2rem, 6.4vw, 4.25rem);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-about .about-hero__lead {
  margin: 0;
  max-width: 40ch;
  font-size: clamp(1rem, 1.4vw, 1.125rem);
  line-height: 1.75;
  color: var(--muted);
}

.page-about .about-hero__meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0.25rem 0 0;
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--sand);
}

.page-about .about-hero__dot {
  width: 22px;
  height: 1px;
  background: var(--cyan);
  display: inline-block;
}

@media (min-width: 900px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    column-gap: clamp(2rem, 5vw, 4rem);
    row-gap: 1.75rem;
    align-items: start;
  }

  .page-about .about-hero .eyebrow {
    grid-area: 1 / 1 / 2 / 3;
  }

  .page-about .about-hero h1 {
    grid-area: 2 / 1 / 3 / 3;
  }

  .page-about .about-hero__meta {
    grid-area: 3 / 1 / 4 / 2;
    align-self: end;
  }

  .page-about .about-hero__lead {
    grid-area: 3 / 2 / 4 / 3;
    text-align: left;
  }
}

/* ---------- 通用标题组 ---------- */
.page-about .eyebrow {
  margin-bottom: 0.85rem;
}

.page-about .about-title {
  margin: 0;
  max-width: 26ch;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.4vw, 2.35rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.015em;
  color: var(--white);
}

.page-about .about-head {
  display: grid;
  gap: 1rem;
  margin-bottom: clamp(1.75rem, 4vw, 2.75rem);
}

.page-about .about-head__note {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--muted);
  transition: color 0.35s var(--ease);
}

.page-about .about-head:hover .about-head__note {
  color: var(--sky);
}

@media (min-width: 820px) {
  .page-about .about-head {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.85fr);
    align-items: end;
    gap: clamp(1.5rem, 4vw, 3rem);
  }

  .page-about .about-head__note {
    text-align: right;
    padding-bottom: 0.45rem;
  }
}

/* ---------- 第一段：错层双列 ---------- */
.page-about .about-split {
  display: grid;
  gap: clamp(1.75rem, 5vw, 3rem);
}

.page-about .about-split__text .prose {
  margin-top: 1.25rem;
}

@media (min-width: 880px) {
  .page-about .about-split {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }

  .page-about .about-split__side {
    margin-top: 2.5rem;
  }
}

/* 仪表盘数字块 */
.page-about .stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--about-line);
  border: 1px solid var(--about-line);
}

.page-about .stats__item {
  background: var(--panel);
  padding: 1.25rem 1.35rem 1.35rem;
}

.page-about .stats__num {
  margin: 0;
  font-size: clamp(2rem, 4.6vw, 2.75rem);
  line-height: 1;
  color: var(--cyan);
}

.page-about .stats__suffix {
  font-size: 0.45em;
  margin-left: 0.18em;
  color: var(--sand);
}

.page-about .stats__label {
  margin: 0.5rem 0 0;
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  color: var(--sand);
}

.page-about .stats__desc {
  margin: 0.45rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 图片容器 ---------- */
.page-about .about-figure {
  margin: 0;
  border: 1px solid var(--about-line);
  background: var(--panel);
  overflow: hidden;
}

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

.page-about .about-figure figcaption {
  padding: 0.8rem 1rem;
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--muted);
  border-top: 1px solid var(--about-line);
}

.page-about .about-figure--wide img {
  aspect-ratio: 2 / 1;
}

.page-about .about-figure--tall img {
  aspect-ratio: 14 / 9;
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline .about-figure--wide {
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.page-about .timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 1.75rem;
  border-left: 1px solid rgba(233, 200, 138, 0.38);
}

.page-about .timeline__item {
  position: relative;
  display: grid;
  gap: 0.3rem;
  padding-bottom: 2rem;
}

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

.page-about .timeline__item::before {
  content: "";
  position: absolute;
  top: 0.45rem;
  left: calc(-1.75rem - 4.5px);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--deep);
  border: 1px solid var(--cyan-deep);
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease),
    box-shadow 0.3s var(--ease);
}

.page-about .timeline__ver {
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--sand);
  transition: color 0.3s var(--ease);
}

.page-about .timeline__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.5;
  color: var(--white);
}

.page-about .timeline__desc {
  margin: 0.3rem 0 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--muted);
  transition: color 0.3s var(--ease);
}

@media (min-width: 720px) {
  .page-about .timeline__item {
    grid-template-columns: 5.5rem minmax(0, 1fr);
    column-gap: 1.75rem;
    align-items: baseline;
  }

  .page-about .timeline__ver {
    text-align: right;
  }
}

@media (hover: hover) {
  .page-about .timeline__item:hover::before,
  .page-about .timeline__item:focus-within::before {
    background: var(--cyan);
    border-color: var(--cyan);
    box-shadow: 0 0 0 4px rgba(34, 240, 214, 0.14);
  }

  .page-about .timeline__item:hover .timeline__ver,
  .page-about .timeline__item:focus-within .timeline__ver {
    color: var(--cyan);
  }

  .page-about .timeline__item:hover .timeline__desc,
  .page-about .timeline__item:focus-within .timeline__desc {
    color: var(--white);
  }
}

/* ---------- 内容生产 ---------- */
.page-about .about-produce__grid {
  display: grid;
  gap: clamp(1.75rem, 5vw, 3rem);
}

.page-about .about-produce__text .prose {
  margin-top: 1.25rem;
}

.page-about .tag-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.5rem 0 0;
  padding: 0;
}

@media (min-width: 900px) {
  .page-about .about-produce__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }
}

/* ---------- 团队 ---------- */
.page-about .team {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--about-line);
  border: 1px solid var(--about-line);
}

.page-about .team__item {
  background: var(--deep-2);
  padding: 1.5rem 1.4rem 1.6rem;
  transition: background 0.3s var(--ease);
}

.page-about .team__num {
  margin: 0;
  font-size: clamp(1.85rem, 4vw, 2.5rem);
  line-height: 1;
  color: var(--white);
}

.page-about .team__role {
  margin: 0.55rem 0 0;
  font-size: 0.9375rem;
  letter-spacing: 0.06em;
  color: var(--sand);
}

.page-about .team__desc {
  margin: 0.65rem 0 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--muted);
}

@media (hover: hover) {
  .page-about .team__item:hover {
    background: var(--panel);
  }
}

@media (min-width: 780px) {
  .page-about .team {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 合作伙伴 ---------- */
.page-about .about-partners__band {
  display: grid;
  gap: clamp(1.25rem, 4vw, 2.5rem);
  padding: clamp(1.75rem, 5vw, 3rem) clamp(1.25rem, 4vw, 2.5rem);
  border: 1px solid var(--about-line);
  border-left: 3px solid var(--cyan);
  background:
    linear-gradient(120deg, rgba(16, 43, 65, 0.9), rgba(4, 12, 22, 0.9));
}

.page-about .about-partners__num {
  margin: 0;
  font-size: clamp(2.5rem, 7vw, 4rem);
  line-height: 1;
  color: var(--cyan);
}

.page-about .about-partners__num span {
  font-size: 0.35em;
  margin-left: 0.2em;
  color: var(--sand);
}

.page-about .about-partners__text .prose {
  margin-top: 1rem;
}

@media (min-width: 760px) {
  .page-about .about-partners__band {
    grid-template-columns: 10rem minmax(0, 1fr);
    align-items: center;
  }
}

/* ---------- 覆盖与场景 ---------- */
.page-about .about-reach__grid {
  display: grid;
  gap: clamp(1.75rem, 5vw, 3rem);
}

.page-about .scenes {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--about-line);
  border-top: 1px solid var(--about-line);
  border-bottom: 1px solid var(--about-line);
}

.page-about .scenes__item {
  background: var(--deep);
  padding: 1.1rem 0 1.15rem;
}

.page-about .scenes__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.5;
  color: var(--sky);
}

.page-about .scenes__desc {
  margin: 0.4rem 0 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--muted);
}

@media (min-width: 900px) {
  .page-about .about-reach__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
  }
}

/* ---------- 页尾入口 ---------- */
.page-about .about-more__grid {
  display: grid;
  gap: 1px;
  background: var(--about-line);
  border: 1px solid var(--about-line);
}

.page-about .about-link {
  display: grid;
  gap: 0.5rem;
  padding: 1.5rem 1.4rem 1.6rem;
  background: var(--panel);
  text-decoration: none;
  color: inherit;
  border-left: 2px solid transparent;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.page-about .about-link__idx {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--sand);
}

.page-about .about-link__title {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--white);
}

.page-about .about-link__desc {
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-about .about-link__go {
  margin-top: 0.35rem;
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

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

@media (hover: hover) {
  .page-about .about-link:hover {
    background: var(--deep-2);
    border-left-color: var(--cyan);
  }
}

@media (min-width: 780px) {
  .page-about .about-more__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about .about-head__note,
  .page-about .timeline__ver,
  .page-about .timeline__desc,
  .page-about .timeline__item::before,
  .page-about .team__item,
  .page-about .about-link {
    transition: none;
  }
}
<<<PAGE_CSS_END>>>