.page-about {
  --about-line: rgba(168, 189, 178, 0.24);
  --about-line-strong: rgba(168, 189, 178, 0.5);
  --about-slab: #0F2E25;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-about .about-wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  margin-top: calc(var(--header-h) * -1);
  padding-block: calc(var(--header-h) + clamp(28px, 6vw, 64px)) clamp(36px, 6vw, 72px);
  background:
    radial-gradient(120% 90% at 88% 4%, rgba(200, 255, 61, 0.16), transparent 58%),
    radial-gradient(90% 80% at 4% 96%, rgba(255, 106, 43, 0.15), transparent 55%),
    var(--ink);
  border-bottom: 2px solid var(--about-line-strong);
}

.page-about .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(18px, 3vw, 28px);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-about .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-about .breadcrumb a:hover,
.page-about .breadcrumb a:focus-visible {
  color: var(--lime);
  border-color: var(--lime);
}

.page-about .breadcrumb__sep {
  color: var(--orange);
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(26px, 5vw, 44px);
  align-items: center;
}

.page-about .eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-about .about-hero h1 {
  margin: 0 0 clamp(16px, 3vw, 26px);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.4rem, 8vw, 5.2rem);
  line-height: 0.98;
  letter-spacing: -0.02em;
  max-width: 17ch;
}

.page-about .about-hero .lead {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(0.98rem, 2.4vw, 1.1rem);
  line-height: 1.78;
  color: var(--muted);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 4vw, 32px);
}

.page-about .about-hero__figure {
  margin: 0;
  position: relative;
  border: 2px solid var(--line-strong);
  box-shadow: 14px 14px 0 0 rgba(255, 106, 43, 0.85);
  background: var(--carbon);
}

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

.page-about .media__caption {
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--muted);
  padding: 10px 12px;
  border-top: 2px solid var(--line);
  background: rgba(11, 13, 12, 0.7);
}

.page-about .about-hero__strip {
  list-style: none;
  margin: clamp(28px, 5vw, 52px) 0 0;
  padding: clamp(16px, 3vw, 22px) 0 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(12px, 2.4vw, 22px);
  border-top: 2px solid var(--about-line-strong);
}

.page-about .about-hero__strip li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--muted);
}

.page-about .about-hero__strip .mono {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--lime);
  letter-spacing: 0.01em;
}

/* ---------- 通用区块 ---------- */
.page-about .about-section {
  padding-block: clamp(46px, 8vw, 96px);
  border-bottom: 2px solid var(--about-line);
}

.page-about .about-section--panel {
  background: var(--about-slab);
}

.page-about .about-section--carbon {
  background: var(--carbon);
}

.page-about .about-head {
  margin-bottom: clamp(24px, 4vw, 42px);
}

.page-about .about-head h2,
.page-about .about-timeline__aside h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.85rem, 5vw, 3.3rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  max-width: 22ch;
}

.page-about .about-section p {
  margin: 0 0 1em;
  font-size: 0.98rem;
  line-height: 1.78;
  color: var(--muted);
}

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

.page-about .about-section a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 255, 61, 0.4);
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-about .about-section a:hover,
.page-about .about-section a:focus-visible {
  color: var(--paper);
  border-color: var(--orange);
}

/* ---------- 品牌起点 ---------- */
.page-about .about-origin__split {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-about .about-origin__facts {
  list-style: none;
  margin: 0;
  padding: clamp(18px, 3vw, 26px);
  display: grid;
  gap: 14px;
  background: var(--about-slab);
  border: 2px solid var(--about-line-strong);
  box-shadow: 8px 8px 0 0 rgba(0, 0, 0, 0.5);
}

.page-about .about-origin__facts li {
  display: grid;
  grid-template-columns: 5.6rem 1fr;
  gap: 12px;
  align-items: baseline;
  padding-bottom: 13px;
  border-bottom: 1px dashed var(--about-line);
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--muted);
}

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

.page-about .about-origin__facts .mono {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: 0.02em;
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline__layout {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

.page-about .about-timeline__figure {
  margin: clamp(20px, 3vw, 28px) 0 0;
  border: 2px solid var(--about-line-strong);
}

.page-about .about-timeline__list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 clamp(20px, 4vw, 34px);
  border-left: 2px solid var(--about-line-strong);
  display: grid;
  gap: clamp(14px, 2.4vw, 22px);
}

.page-about .tl-item {
  position: relative;
  padding: clamp(14px, 2.4vw, 22px);
  background: var(--ink);
  border: 2px solid var(--about-line);
  transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease), border-color 0.22s var(--ease);
  outline-offset: 3px;
}

.page-about .tl-item::before {
  content: "";
  position: absolute;
  top: 24px;
  left: calc(-1 * clamp(20px, 4vw, 34px) - 8px);
  width: 12px;
  height: 12px;
  background: var(--ink);
  border: 2px solid var(--orange);
  transform: rotate(45deg);
}

.page-about .tl-item:hover,
.page-about .tl-item:focus-visible {
  border-color: var(--lime);
  transform: translate(-3px, -3px);
  box-shadow: 7px 7px 0 0 rgba(200, 255, 61, 0.22);
}

.page-about .tl-year {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 3.4vw, 1.9rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--orange);
}

.page-about .tl-item h3 {
  margin: 8px 0 6px;
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-about .tl-item p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.72;
}

/* ---------- 团队 ---------- */
.page-about .about-team__layout {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-about .about-tabs .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(16px, 3vw, 24px);
}

.page-about .about-tabs .tabs__btn {
  appearance: none;
  background: transparent;
  border: 2px solid var(--about-line);
  color: var(--muted);
  padding: 9px 15px;
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-about .about-tabs .tabs__btn:hover {
  color: var(--paper);
  border-color: var(--about-line-strong);
}

.page-about .about-tabs .tabs__btn[aria-selected="true"] {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--carbon);
}

.page-about .about-tabs .tabs__btn:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

.page-about .about-tabs .tabs__panel {
  padding: clamp(18px, 3vw, 28px);
  background: var(--about-slab);
  border: 2px solid var(--about-line-strong);
  box-shadow: 8px 8px 0 0 rgba(0, 0, 0, 0.45);
}

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

.page-about .about-tabs .tabs__panel h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--lime);
}

.page-about .about-team__points {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-about .about-team__points li {
  position: relative;
  padding-left: 18px;
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--muted);
}

.page-about .about-team__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 9px;
  height: 2px;
  background: var(--orange);
}

.page-about .about-team__figure {
  margin: 0;
  border: 2px solid var(--about-line-strong);
  background: var(--carbon);
}

/* ---------- 覆盖 ---------- */
.page-about .about-cover__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

.page-about .about-cover__map {
  display: block;
  width: 100%;
  height: auto;
  background: var(--ink);
  border: 2px solid var(--about-line-strong);
}

.page-about .about-cover__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-about .about-cover__list li {
  display: grid;
  grid-template-columns: 3.2rem 1fr;
  gap: 14px;
  align-items: start;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--about-line);
}

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

.page-about .about-cover__num {
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 3.4vw, 1.75rem);
  font-weight: 700;
  line-height: 1;
  color: var(--lime);
}

.page-about .about-cover__list h3 {
  margin: 0 0 5px;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-about .about-cover__list p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.72;
}

/* ---------- 合作 ---------- */
.page-about .about-partners__grid {
  display: grid;
  gap: clamp(14px, 2.6vw, 22px);
}

.page-about .about-partner {
  padding: clamp(18px, 3vw, 26px);
  background: var(--about-slab);
  border: 2px solid var(--about-line-strong);
  box-shadow: 6px 6px 0 0 rgba(0, 0, 0, 0.42);
  transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-about .about-partner:hover {
  transform: translate(-2px, -2px);
  border-color: var(--lime);
  box-shadow: 8px 8px 0 0 rgba(200, 255, 61, 0.2);
}

.page-about .about-partner__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.9rem, 5vw, 2.4rem);
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
}

.page-about .about-partner h3 {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--paper);
}

.page-about .about-partner p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.72;
}

.page-about .about-partners__note {
  margin-top: clamp(20px, 3vw, 30px);
  padding-left: 16px;
  border-left: 3px solid var(--orange);
}

/* ---------- 信任 ---------- */
.page-about .about-trust__honor {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding: clamp(16px, 3vw, 22px);
  margin-bottom: clamp(20px, 3vw, 30px);
  border: 2px solid var(--about-line-strong);
  border-left: 6px solid var(--orange);
  background: rgba(255, 106, 43, 0.07);
}

.page-about .about-trust__honor p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--paper);
}

.page-about .about-trust__band {
  list-style: none;
  margin: 0 0 clamp(20px, 3vw, 30px);
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--about-line-strong);
  border: 2px solid var(--about-line-strong);
}

.page-about .about-trust__cell {
  display: grid;
  gap: 6px;
  padding: clamp(16px, 2.8vw, 24px);
  background: var(--ink);
}

.page-about .about-trust__cell .mono {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  line-height: 1;
  color: var(--lime);
}

.page-about .about-trust__cell span:last-child {
  font-size: 0.8rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

/* ---------- 收束 ---------- */
.page-about .about-cta {
  padding-block: clamp(48px, 8vw, 96px);
  border-top: 2px solid var(--lime);
  background:
    linear-gradient(135deg, rgba(200, 255, 61, 0.13), rgba(255, 106, 43, 0.12)),
    var(--carbon);
}

.page-about .about-cta__mark {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(3rem, 14vw, 8rem);
  font-weight: 900;
  line-height: 0.85;
  letter-spacing: -0.03em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(200, 255, 61, 0.42);
}

.page-about .about-cta h2 {
  margin: 0 0 clamp(14px, 2.5vw, 20px);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.9rem, 5.4vw, 3.4rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  max-width: 20ch;
}

.page-about .about-cta .lead {
  margin: 0;
  max-width: 52ch;
  font-size: clamp(0.96rem, 2.2vw, 1.05rem);
  line-height: 1.78;
  color: var(--muted);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3.5vw, 32px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-about .about-hero__strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

@media (min-width: 900px) {
  .page-about .about-origin__split {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    align-items: start;
  }

  .page-about .about-cover__grid {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  }

  .page-about .about-timeline__layout {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }

  .page-about .about-timeline__aside {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

@media (min-width: 960px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: clamp(32px, 5vw, 64px);
  }

  .page-about .about-hero__figure {
    transform: rotate(-1deg);
  }

  .page-about .about-team__layout {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: clamp(28px, 4vw, 48px);
  }
}

@media (min-width: 1200px) {
  .page-about .about-hero h1 {
    max-width: 15ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .tl-item,
  .page-about .about-partner,
  .page-about .about-tabs .tabs__btn,
  .page-about .breadcrumb a {
    transition: none;
  }

  .page-about .tl-item:hover,
  .page-about .tl-item:focus-visible,
  .page-about .about-partner:hover,
  .page-about .about-hero__figure {
    transform: none;
  }
}
<<<PAGE_CSS_END>>>