.page-about {
  --about-line: rgba(230, 236, 245, 0.12);
  --about-line-green: rgba(57, 255, 20, 0.38);
  --about-bg-alt: #0e2148;
  --about-card-bg: #121c38;
  color: var(--c-text);
  background-color: var(--c-bg);
  font-family: var(--font-sans);
  line-height: 1.7;
  overflow-x: clip;
}

.page-about .breadcrumbs {
  margin: 1.5rem 0 -1rem;
}

.page-about .about-hero {
  position: relative;
  padding: clamp(2.75rem, 8vw, 5.5rem) 0 2rem;
  border-bottom: 1px solid var(--c-line);
  background-image:
    linear-gradient(rgba(57, 255, 20, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57, 255, 20, 0.045) 1px, transparent 1px);
  background-size: 30px 30px;
  overflow: hidden;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 30%;
  height: 100%;
  background: linear-gradient(135deg, transparent 0%, rgba(0, 229, 255, 0.07) 100%);
  clip-path: polygon(24% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-about .about-hero__eyebrow {
  margin-bottom: 1rem;
}

.page-about .about-hero__title {
  margin: 0 0 1.25rem;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(2.4rem, 8vw, 4.6rem);
  line-height: 1.02;
  letter-spacing: 0.02em;
  color: var(--c-text);
}

.page-about .about-hero__title em {
  font-style: normal;
  color: var(--c-green);
  position: relative;
  white-space: nowrap;
}

.page-about .about-hero__title em::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0.06em;
  width: 100%;
  height: 6px;
  background: rgba(57, 255, 20, 0.22);
  transform: skewX(-24deg);
  pointer-events: none;
}

.page-about .about-hero__title span {
  display: block;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.42em;
  letter-spacing: 0.16em;
  color: var(--c-text-2);
  margin-top: 0.5em;
}

.page-about .about-hero__lead {
  max-width: 36em;
  margin: 0 0 1.5rem;
  font-size: 1.06rem;
  color: var(--c-text-2);
}

.page-about .about-hero__lead strong {
  color: var(--c-green);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.02em;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.page-about .about-hero__side {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.page-about .about-hero__card {
  position: relative;
  padding: 1.5rem;
  background: var(--c-bg-2);
  border: 1px solid var(--c-line);
  border-radius: 4px;
  overflow: hidden;
}

.page-about .about-hero__card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--c-green), rgba(57, 255, 20, 0.08) 80%);
}

.page-about .about-hero__slogan {
  margin: 0.3rem 0 0.6rem;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  line-height: 1.18;
  color: var(--c-green);
  letter-spacing: 0.04em;
}

.page-about .about-hero__meta {
  margin: 0;
  font-size: 0.85rem;
  color: var(--c-text-2);
  letter-spacing: 0.04em;
}

.page-about .about-hero__note {
  margin: 0;
  font-size: 0.88rem;
  color: var(--c-text-2);
}

.page-about .about-hero__note-num {
  color: var(--c-green);
  font-family: var(--font-mono);
  font-weight: 700;
}

.page-about .about-hero__metrics {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin: 2.25rem 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-hero__metrics li {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--c-line);
  border-radius: 4px;
  background: rgba(18, 28, 56, 0.72);
}

.page-about .about-hero__metrics strong {
  color: var(--c-text);
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
}

.page-about .about-hero__metrics span {
  font-size: 0.8rem;
  color: var(--c-text-2);
}

.page-about .about-story {
  position: relative;
  padding-top: clamp(3.5rem, 8vw, 6rem);
  padding-bottom: clamp(3.5rem, 8vw, 6rem);
}

.page-about .about-story__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.25rem;
}

.page-about .about-story__media {
  position: relative;
}

.page-about .about-story__frame {
  height: 100%;
}

.page-about .about-story__img {
  width: 100%;
  height: 100%;
  max-height: 420px;
  object-fit: cover;
  border-radius: 4px;
  clip-path: polygon(0 0, calc(100% - 1.5rem) 0, 100% 1.5rem, 100% 100%, 0 100%);
}

.page-about .about-story__content {
  position: relative;
}

.page-about .about-story .section-number {
  display: inline-block;
  margin-bottom: 0.5rem;
}

.page-about .about-story__lead {
  margin: 1rem 0;
  font-size: 1.12rem;
  font-weight: 600;
  color: var(--c-text);
  border-left: 3px solid var(--c-green);
  padding-left: 1rem;
}

.page-about .about-story__content p:not(.about-story__lead) {
  margin: 0 0 1rem;
  color: var(--c-text-2);
}

.page-about .about-story__quote {
  margin: 1.5rem 0 0;
  padding: 1.25rem 1.5rem;
  background: var(--c-bg-2);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-orange);
  border-radius: 0 4px 4px 0;
  position: relative;
}

.page-about .about-story__quote-mark {
  position: absolute;
  top: -0.2rem;
  left: 0.5rem;
  font-family: var(--font-serif);
  font-size: 3rem;
  line-height: 1;
  color: var(--c-orange);
  opacity: 0.25;
  pointer-events: none;
}

.page-about .about-story__quote p {
  margin: 0;
  color: var(--c-text);
  font-size: 0.98rem;
}

.page-about .about-timeline {
  background: var(--about-bg-alt);
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
  padding-top: clamp(3.5rem, 8vw, 6rem);
  padding-bottom: clamp(3.5rem, 8vw, 6rem);
}

.page-about .about-timeline__header {
  max-width: 620px;
}

.page-about .about-timeline__desc,
.page-about .about-data__desc,
.page-about .about-team__desc {
  margin-top: 0.5rem;
  color: var(--c-text-2);
}

.page-about .about-timeline__rail {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 3rem;
}

.page-about .about-timeline__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.9rem 1.1rem;
  align-items: start;
}

.page-about .about-timeline__year {
  display: inline-block;
  padding: 0.3rem 0.65rem;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1rem;
  color: var(--c-green);
  border: 1px solid var(--c-line-green);
  border-radius: 4px;
  background: rgba(18, 28, 56, 0.8);
  white-space: nowrap;
}

.page-about .about-timeline__card {
  margin: 0;
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: 4px;
  overflow: hidden;
}

.page-about .about-timeline__card summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.15rem;
  cursor: pointer;
  list-style: none;
}

.page-about .about-timeline__card summary::-webkit-details-marker {
  display: none;
}

.page-about .about-timeline__title {
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--c-text);
}

.page-about .about-timeline__hint {
  flex-shrink: 0;
  font-size: 0.78rem;
  color: var(--c-text-2);
  font-family: var(--font-mono);
}

.page-about .about-timeline__detail {
  padding: 0 1.15rem 1.15rem;
  border-top: 1px solid var(--c-line);
}

.page-about .about-timeline__detail p {
  margin: 0.85rem 0 0.75rem;
  font-size: 0.92rem;
  color: var(--c-text-2);
}

.page-about .about-data {
  padding-top: clamp(3.5rem, 8vw, 6rem);
  padding-bottom: clamp(3.5rem, 8vw, 6rem);
}

.page-about .about-data__header {
  max-width: 620px;
}

.page-about .about-data__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.25rem;
  margin-top: 2.25rem;
}

.page-about .about-data__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.page-about .about-data__card {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.25rem;
  background: var(--about-card-bg);
  border: 1px solid var(--c-line);
  border-radius: 4px;
  position: relative;
  overflow: hidden;
}

.page-about .about-data__card:nth-child(odd)::after {
  content: "";
  position: absolute;
  right: -1px;
  top: -1px;
  width: 2rem;
  height: 2rem;
  background: linear-gradient(135deg, rgba(57, 255, 20, 0.5) 50%, transparent 50.5%);
  border-radius: 0 0 0 4px;
}

.page-about .about-data__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(2.1rem, 6vw, 3.2rem);
  line-height: 1;
  color: var(--c-text);
}

.page-about .about-data__num .stat-unit {
  font-size: 0.5em;
  color: var(--c-green);
}

.page-about .about-data__caption {
  font-size: 0.85rem;
  color: var(--c-text-2);
}

.page-about .about-data__visual {
  display: grid;
  gap: 1rem;
}

.page-about .about-data__frame {
  overflow: hidden;
  border-radius: 4px;
  border: 1px solid var(--c-line);
  background: var(--c-bg-2);
}

.page-about .about-data__img {
  width: 100%;
  height: 100%;
  max-height: 340px;
  object-fit: cover;
  display: block;
  filter: saturate(0.95) contrast(1.05);
}

.page-about .about-data__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-data__facts li {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin: 0;
  padding: 0.45rem 0.65rem;
  background: rgba(18, 28, 56, 0.8);
  border: 1px solid var(--c-line);
  border-radius: 4px;
  font-size: 0.88rem;
  color: var(--c-text-2);
}

.page-about .about-data__facts .tag {
  min-width: 3.2rem;
  text-align: center;
}

.page-about .about-team {
  background: var(--about-bg-alt);
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
  padding-top: clamp(3.5rem, 8vw, 6rem);
  padding-bottom: clamp(3.5rem, 8vw, 6rem);
}

.page-about .about-team__header {
  max-width: 620px;
}

.page-about .about-team__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.25rem;
  margin-top: 2.25rem;
}

.page-about .about-team__cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.page-about .about-team__card {
  padding: 1.4rem 1.25rem;
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: 4px;
  position: relative;
  overflow: hidden;
}

.page-about .about-team__card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--c-green);
}

.page-about .about-team__card:nth-child(2)::before {
  background: var(--c-cyan);
}

.page-about .about-team__card:nth-child(3)::before {
  background: var(--c-purple);
}

.page-about .about-team__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 2rem;
  line-height: 1;
  color: var(--c-green);
  margin-bottom: 0.5rem;
}

.page-about .about-team__card:nth-child(2) .about-team__num {
  color: var(--c-cyan);
}

.page-about .about-team__card:nth-child(3) .about-team__num {
  color: var(--c-purple);
}

.page-about .about-team__card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--c-text);
}

.page-about .about-team__card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--c-text-2);
}

.page-about .about-team__media {
  order: -1;
}

.page-about .about-team__frame {
  overflow: hidden;
  border-radius: 4px;
  border: 1px solid var(--c-line);
  background: var(--c-bg-2);
}

.page-about .about-team__img {
  width: 100%;
  height: 100%;
  max-height: 340px;
  object-fit: cover;
  display: block;
}

.page-about .about-hunan {
  padding-top: clamp(3.5rem, 8vw, 6rem);
  padding-bottom: clamp(3.5rem, 8vw, 6rem);
}

.page-about .about-hunan__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  padding: clamp(1.75rem, 5vw, 3.5rem);
  background: linear-gradient(135deg, var(--c-bg-2) 0%, var(--c-bg) 100%);
  border: 1px solid var(--c-line);
  border-radius: 4px;
  clip-path: polygon(0 0, calc(100% - 1.5rem) 0, 100% 1.5rem, 100% 100%, 1.5rem 100%, 0 calc(100% - 1.5rem));
}

.page-about .about-hunan__inner::after {
  content: "湘";
  position: absolute;
  right: 1.25rem;
  bottom: -1.1rem;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(6rem, 18vw, 12rem);
  line-height: 1;
  color: rgba(57, 255, 20, 0.055);
  pointer-events: none;
}

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

.page-about .about-hunan__content p {
  color: var(--c-text-2);
}

.page-about .about-hunan__quote {
  margin: 1.25rem 0 0;
  padding: 0.9rem 1.1rem;
  border-left: 3px solid var(--c-orange);
  background: rgba(255, 107, 0, 0.08);
  color: var(--c-text);
  font-size: 0.98rem;
}

.page-about .about-hunan__facts {
  position: relative;
  z-index: 1;
  align-self: end;
  padding: 1.25rem 1.35rem;
  background: rgba(18, 28, 56, 0.92);
  border: 1px solid var(--c-line-green);
  border-radius: 4px;
}

.page-about .about-hunan__facts ul {
  margin: 0.65rem 0 1rem;
  padding-left: 1.1rem;
  color: var(--c-text-2);
}

.page-about .about-hunan__facts li {
  margin-bottom: 0.35rem;
  font-size: 0.9rem;
}

.page-about .about-hunan__note {
  margin: 0 0 1rem;
  font-size: 0.86rem;
  color: var(--c-text-2);
  font-family: var(--font-mono);
}

.page-about .about-links {
  background: var(--c-bg);
  border-top: 1px solid var(--c-line);
  padding-top: clamp(3rem, 7vw, 5rem);
  padding-bottom: clamp(3rem, 7vw, 5rem);
}

.page-about .about-links__header {
  max-width: 480px;
}

.page-about .about-links__card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.75rem 1.5rem;
  background: var(--c-bg-2);
  border: 1px solid var(--c-line);
  border-radius: 4px;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.page-about .about-links__card:hover {
  transform: translateY(-3px);
  border-color: var(--c-line-green);
}

.page-about .about-links__card--orange:hover {
  border-color: var(--c-orange);
}

.page-about .about-links__mark {
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--c-bg);
  background: var(--c-green);
  border-radius: 3px;
  font-size: 0.9rem;
}

.page-about .about-links__card--orange .about-links__mark {
  background: var(--c-orange);
}

.page-about .about-links__card h3 {
  margin: 0.35rem 0 0;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--c-text);
}

.page-about .about-links__card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--c-text-2);
}

.page-about .about-links__go {
  margin-top: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  color: var(--c-green);
}

.page-about .about-links__card--orange .about-links__go {
  color: var(--c-orange);
}

@media (min-width: 640px) {
  .page-about .about-hero__metrics {
    grid-template-columns: repeat(4, 1fr);
  }

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

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

@media (min-width: 900px) {
  .page-about .about-hero {
    padding-top: clamp(3.5rem, 8vw, 6rem);
    padding-bottom: 3rem;
  }

  .page-about .about-hero__inner {
    grid-template-columns: 7fr 4fr;
    gap: 3rem;
  }

  .page-about .about-hero__side {
    grid-template-columns: 1fr;
    gap: 1.25rem;
    padding-top: 0.75rem;
  }

  .page-about .about-story__grid {
    grid-template-columns: 5fr 6fr;
    gap: 3.5rem;
    align-items: center;
  }

  .page-about .about-story__img {
    max-height: 520px;
  }

  .page-about .about-timeline__rail {
    grid-template-columns: repeat(5, 1fr);
    gap: 1rem;
    position: relative;
  }

  .page-about .about-timeline__rail::before {
    content: "";
    position: absolute;
    top: 2.1rem;
    left: 3%;
    right: 3%;
    height: 1px;
    background: linear-gradient(90deg, var(--c-line), var(--c-line-green), var(--c-line));
  }

  .page-about .about-timeline__item {
    display: block;
  }

  .page-about .about-timeline__year {
    margin-bottom: 0.9rem;
  }

  .page-about .about-data__grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
  }

  .page-about .about-data__visual {
    position: sticky;
    top: calc(var(--header-h) + 2rem);
  }

  .page-about .about-team__layout {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 3rem;
    align-items: center;
  }

  .page-about .about-team__media {
    order: 2;
  }

  .page-about .about-team__img {
    max-height: 460px;
  }

  .page-about .about-hunan__inner {
    grid-template-columns: 1fr 0.7fr;
    gap: 3rem;
    align-items: end;
  }

  .page-about .about-links__card {
    padding: 2rem 1.75rem;
  }
}