.page-about {
  --hero-blue: #0B1D3A;
  --gold-deep: #8A6A34;
  --gold-soft: #C9A063;
  --bg-warm-brand: #F5F3EF;
  --ink-brand: #101820;
  --line-brand: #2A3A5C;
  --cream-brand: #FDFBF7;
  --font-title: "Noto Serif SC", "Songti SC", "STSong", serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", "Consolas", "Courier New", monospace;
  overflow-x: hidden;
}

.page-about__hero {
  position: relative;
  background: var(--hero-blue);
  color: var(--cream-brand);
  padding: 48px 0 72px;
  margin-bottom: 0;
  overflow: hidden;
}

.page-about__hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.28;
}

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

.page-about__hero .container {
  position: relative;
  z-index: 2;
}

.page-about__hero .breadcrumbs {
  margin-bottom: 40px;
}

.page-about__hero .breadcrumb {
  color: var(--gold-light);
  text-decoration: none;
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: 0.02em;
}

.page-about__hero .breadcrumb:hover {
  color: var(--cream-brand);
}

.page-about__hero .breadcrumb-current {
  color: rgba(253, 251, 247, 0.7);
  font-family: var(--font-body);
  font-size: 14px;
}

.page-about__hero .breadcrumb-sep {
  color: var(--gold-soft);
  margin: 0 8px;
  font-size: 14px;
}

.page-about__hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

.page-about__hero-text {
  max-width: 680px;
}

.page-about__hero .section-kicker {
  color: var(--gold-soft);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.page-about__hero h1 {
  font-family: var(--font-title);
  font-size: 30px;
  line-height: 1.28;
  font-weight: 800;
  margin: 0 0 20px;
  color: var(--cream-brand);
  text-wrap: balance;
}

.page-about__hero-desc {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: rgba(253, 251, 247, 0.82);
  margin: 0 0 28px;
}

.page-about__hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about__hero-tags .tag {
  background: rgba(11, 29, 58, 0.62);
  border: 1px solid rgba(201, 160, 99, 0.38);
  color: var(--cream-brand);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 13px;
  font-family: var(--font-body);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  backdrop-filter: blur(4px);
}

.page-about__hero-tags .tag--cyan {
  border-color: rgba(63, 224, 197, 0.5);
  color: var(--cyan);
}

.page-about__hero-tags .tag--violet {
  border-color: rgba(122, 92, 255, 0.5);
  color: var(--violet);
}

.page-about__hero-stamp {
  display: none;
}

.page-about__hero-stamp .page-about__stamp-ring {
  width: 140px;
  height: 140px;
  border: 2px solid var(--gold-soft);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  color: var(--gold-light);
  font-family: var(--font-title);
  position: relative;
}

.page-about__hero-stamp .page-about__stamp-ring::after {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px dashed rgba(201, 160, 99, 0.4);
  border-radius: 50%;
}

.page-about__stamp-num {
  font-size: 42px;
  font-weight: 800;
  line-height: 1.1;
}

.page-about__stamp-unit {
  font-size: 16px;
  letter-spacing: 0.1em;
  font-family: var(--font-body);
}

.page-about__hero-stamp p {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: rgba(253, 251, 247, 0.72);
  margin-top: 16px;
}

.page-about__section {
  padding: 64px 0;
}

.page-about__origin {
  background: var(--bg-warm);
  border-bottom: 1px solid rgba(42, 58, 92, 0.1);
}

.page-about__aside {
  margin-bottom: 36px;
}

.page-about__aside .section-kicker {
  color: var(--gold-deep);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.page-about__aside .section-title {
  font-family: var(--font-title);
  font-size: 26px;
  font-weight: 800;
  color: var(--ink);
  margin: 0 0 8px;
}

.page-about__aside-note {
  font-family: var(--font-body);
  font-size: 15px;
  color: rgba(16, 24, 32, 0.56);
  margin: 0 0 18px;
}

.page-about__aside-line {
  width: 32px;
  height: 3px;
  background: var(--gold-soft);
  border-radius: 2px;
  margin-bottom: 18px;
}

.page-about__aside-index {
  font-family: var(--font-mono);
  font-size: 13px;
  color: rgba(16, 24, 32, 0.48);
  letter-spacing: 0.06em;
  margin: 0;
}

.page-about__origin-copy p {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
  margin: 0 0 18px;
}

.page-about__origin-copy .page-about__lead {
  font-size: 18px;
  line-height: 1.75;
  font-weight: 600;
  color: var(--hero-blue);
  border-left: 3px solid var(--gold-soft);
  padding-left: 16px;
}

.page-about__timeline-section {
  background: var(--cream-brand);
}

.page-about__timeline-head {
  margin-bottom: 56px;
}

.page-about__timeline-head .section-kicker {
  color: var(--gold-deep);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.page-about__timeline-head .section-title {
  font-family: var(--font-title);
  font-size: 28px;
  font-weight: 800;
  color: var(--ink);
  margin: 0 0 12px;
}

.page-about__timeline-desc {
  font-family: var(--font-body);
  font-size: 15px;
  color: rgba(16, 24, 32, 0.62);
  line-height: 1.7;
  margin-bottom: 0;
  max-width: 560px;
}

.page-about__timeline-wrap {
  position: relative;
  padding-bottom: 20px;
}

.page-about__timeline-axis {
  position: absolute;
  left: 72px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--gold-soft) 0%, rgba(42, 58, 92, 0.22) 100%);
}

.page-about__timeline-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.page-about__tl-item {
  position: relative;
  display: flex;
  gap: 20px;
  padding-left: 0;
}

.page-about__tl-item::before {
  content: "";
  position: absolute;
  left: 67px;
  top: 10px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--gold-soft);
  border: 3px solid var(--cream-brand);
  box-shadow: 0 0 0 2px rgba(201, 160, 99, 0.4);
  z-index: 2;
}

.page-about__tl-item::after {
  content: "";
  position: absolute;
  left: 50px;
  top: 22px;
  width: 0;
  height: 0;
  border-left: 25px solid rgba(16, 24, 32, 0.05);
  border-top: 8px solid transparent;
  border-bottom: 8px solid transparent;
}

.page-about__tl-year {
  flex: 0 0 58px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--hero-blue);
  letter-spacing: 0.04em;
  padding-top: 28px;
  text-align: right;
  line-height: 1.4;
}

.page-about__tl-card {
  flex: 1;
  background: var(--bg-warm);
  border-radius: 16px;
  padding: 18px 20px;
  border: 1px solid rgba(42, 58, 92, 0.08);
  box-shadow: 0 4px 16px rgba(11, 29, 58, 0.04);
  max-width: 520px;
  margin-left: 36px;
}

.page-about__tl-card h3 {
  font-family: var(--font-title);
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 8px;
}

.page-about__tl-card p {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.7;
  color: rgba(16, 24, 32, 0.7);
  margin: 0;
}

.page-about__timeline-figure {
  margin-top: 56px;
  border-radius: 18px;
  overflow: hidden;
  background: var(--bg-warm);
  border: 1px solid rgba(42, 58, 92, 0.08);
  box-shadow: 0 14px 36px rgba(4, 12, 28, 0.08);
}

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

.page-about__timeline-figure figcaption {
  padding: 12px 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: rgba(16, 24, 32, 0.56);
  letter-spacing: 0.04em;
}

.page-about__mission {
  background: var(--hero-blue);
  color: var(--cream-brand);
}

.page-about__mission-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

.page-about__mission-left .section-kicker {
  color: var(--gold-soft);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.page-about__mission-left .section-title {
  font-family: var(--font-title);
  font-size: 28px;
  font-weight: 800;
  color: var(--cream-brand);
  margin: 0;
}

.page-about__mission-right p:not(.page-about__mission-quote p) {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: rgba(253, 251, 247, 0.78);
  margin: 0 0 18px;
}

.page-about__mission-quote {
  margin: 0 0 28px;
  padding: 20px 0 20px 22px;
  border-left: 4px solid var(--gold-soft);
  background: rgba(201, 160, 99, 0.08);
  border-radius: 0 14px 14px 0;
}

.page-about__mission-quote p {
  font-family: var(--font-title);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--cream-brand);
  margin: 0;
}

.page-about__mission-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-about__mission-actions .btn-primary {
  background: var(--gold-soft);
  color: var(--hero-blue);
  font-weight: 700;
  border: 1px solid transparent;
  padding: 10px 24px;
  border-radius: 999px;
  text-decoration: none;
  font-size: 14px;
  font-family: var(--font-body);
  transition: background 0.24s ease, transform 0.24s ease;
}

.page-about__mission-actions .btn-primary:hover {
  background: var(--gold-light);
  transform: translateY(1px);
}

.page-about__mission-actions .btn-ghost {
  background: transparent;
  color: var(--gold-soft);
  border: 1px solid rgba(201, 160, 99, 0.5);
  padding: 10px 24px;
  border-radius: 999px;
  text-decoration: none;
  font-size: 14px;
  font-family: var(--font-body);
  transition: border-color 0.24s ease, color 0.24s ease;
}

.page-about__mission-actions .btn-ghost:hover {
  border-color: var(--gold-light);
  color: var(--gold-light);
}

.page-about__team {
  background: var(--bg-warm);
}

.page-about__team-layout {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.page-about__team-copy p {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
  margin: 0 0 18px;
}

.page-about__honor-list {
  display: grid;
  gap: 14px;
  margin-top: 32px;
}

.page-about__honor-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--cream-brand);
  border: 1px solid rgba(42, 58, 92, 0.08);
  border-radius: 14px;
  padding: 16px 18px;
}

.page-about__honor-icon {
  flex: 0 0 12px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--gold-soft);
  margin-top: 6px;
  box-shadow: 0 0 0 4px rgba(201, 160, 99, 0.18);
}

.page-about__honor-item h3 {
  font-family: var(--font-title);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 4px;
}

.page-about__honor-item p {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.6;
  color: rgba(16, 24, 32, 0.64);
  margin: 0;
}

.page-about__team-figure {
  margin: 0;
  border-radius: 18px;
  overflow: hidden;
  background: var(--cream-brand);
  border: 1px solid rgba(42, 58, 92, 0.08);
  box-shadow: 0 14px 36px rgba(4, 12, 28, 0.08);
}

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

.page-about__team-figure figcaption {
  padding: 12px 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: rgba(16, 24, 32, 0.56);
  letter-spacing: 0.04em;
}

.page-about__cta-strip {
  background: var(--hero-blue);
  padding: 64px 0;
  color: var(--cream-brand);
}

.page-about__cta-inner {
  text-align: left;
  max-width: 680px;
  margin: 0 auto;
}

.page-about__cta-inner .section-kicker {
  color: var(--gold-soft);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.page-about__cta-title {
  font-family: var(--font-title);
  font-size: 26px;
  font-weight: 800;
  color: var(--cream-brand);
  margin: 0 0 12px;
}

.page-about__cta-desc {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.7;
  color: rgba(253, 251, 247, 0.78);
  margin: 0 0 26px;
}

.page-about__cta-inner .btn-primary {
  display: inline-block;
  background: var(--gold-soft);
  color: var(--hero-blue);
  font-weight: 700;
  border: 1px solid transparent;
  padding: 12px 28px;
  border-radius: 999px;
  text-decoration: none;
  font-size: 15px;
  font-family: var(--font-body);
  transition: background 0.24s ease, transform 0.24s ease;
}

.page-about__cta-inner .btn-primary:hover {
  background: var(--gold-light);
  transform: translateY(1px);
}

@media (min-width: 768px) {
  .page-about__hero {
    padding: 72px 0 96px;
  }

  .page-about__hero h1 {
    font-size: 38px;
  }

  .page-about__hero-desc {
    font-size: 17px;
  }

  .page-about__hero-grid {
    grid-template-columns: 1fr auto;
    gap: 60px;
  }

  .page-about__hero-stamp {
    display: block;
  }

  .page-about__section {
    padding: 88px 0;
  }

  .page-about__origin .split-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 40px;
  }

  .page-about__aside {
    margin-bottom: 0;
  }

  .page-about__origin-copy .page-about__lead {
    font-size: 20px;
  }

  .page-about__timeline-axis {
    left: 96px;
  }

  .page-about__tl-item {
    gap: 28px;
  }

  .page-about__tl-item::before {
    left: 91px;
  }

  .page-about__tl-item::after {
    left: 74px;
  }

  .page-about__tl-year {
    flex: 0 0 82px;
    font-size: 16px;
    padding-top: 24px;
  }

  .page-about__tl-card {
    margin-left: 52px;
    padding: 22px 26px;
  }

  .page-about__mission-inner {
    grid-template-columns: 260px 1fr;
    gap: 60px;
  }

  .page-about__mission-left .section-title {
    font-size: 32px;
  }

  .page-about__mission-quote p {
    font-size: 26px;
  }

  .page-about__team .split-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 40px;
  }

  .page-about__team-layout {
    flex-direction: row;
    align-items: flex-start;
    gap: 40px;
  }

  .page-about__team-copy {
    flex: 1;
  }

  .page-about__team-figure {
    flex: 0 0 280px;
    margin-top: 20px;
  }

  .page-about__cta-strip {
    padding: 80px 0;
  }

  .page-about__cta-title {
    font-size: 32px;
  }
}

@media (min-width: 1024px) {
  .page-about__hero h1 {
    font-size: 44px;
  }

  .page-about__hero-desc {
    font-size: 18px;
    max-width: 620px;
  }

  .page-about__origin .split-layout {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 64px;
  }

  .page-about__team .split-layout {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 64px;
  }

  .page-about__team-figure {
    flex: 0 0 360px;
  }

  .page-about__mission-inner {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 64px;
  }
}