.page-about {
  --about-warm: #F9C74F;
  --about-orange: #FF6A00;
  --about-green: #00FF66;
  --about-line: rgba(154, 168, 192, 0.18);
  --about-panel: #121A2C;
  --about-bg-deep: #060810;
  --about-radius-lg: 16px;
  --about-radius-md: 10px;
  --about-ease: cubic-bezier(0.22, 1, 0.36, 1);
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-body);
  min-height: 100vh;
  overflow-x: hidden;
  background-image: linear-gradient(var(--c-border) 1px, transparent 1px), linear-gradient(90deg, var(--c-border) 1px, transparent 1px);
  background-size: 44px 44px;
}

.page-about .breadcrumb-wrap {
  padding: calc(var(--header-h) + 20px) 0 8px;
}

.page-about .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--c-text-dim);
  letter-spacing: 0.04em;
}

.page-about .breadcrumb a {
  color: var(--c-text-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.3s var(--about-ease), border-color 0.3s var(--about-ease);
}

.page-about .breadcrumb a:hover {
  color: var(--about-green);
  border-color: var(--about-green);
}

.page-about .breadcrumb li + li::before {
  content: "→";
  margin-right: 8px;
  color: var(--about-orange);
}

.page-about .about-hero {
  padding: 64px 0 88px;
}

.page-about .about-hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
  position: relative;
}

.page-about .about-hero-inner::before {
  content: "";
  position: absolute;
  width: 240px;
  height: 240px;
  right: -80px;
  top: -80px;
  border: 1px solid var(--about-green);
  opacity: 0.25;
  border-radius: 50%;
  pointer-events: none;
}

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

.page-about .section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--about-orange);
  margin-bottom: 18px;
}

.page-about .section-label::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--about-orange);
  display: inline-block;
}

.page-about h1 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  line-height: 1.05;
  margin: 0 0 24px;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  max-width: 640px;
}

.page-about .about-hero-desc {
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-text-dim);
  max-width: 560px;
  margin: 0 0 36px;
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.page-about .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-family: var(--font-head);
  font-weight: 600;
  letter-spacing: 0.04em;
  font-size: 14px;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--radius-pill);
  transition: transform 0.3s var(--about-ease), box-shadow 0.3s var(--about-ease), background 0.3s var(--about-ease);
  cursor: pointer;
  border: 1px solid transparent;
}

.page-about .btn-primary {
  background: var(--about-green);
  color: #060810;
}

.page-about .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0, 255, 102, 0.25);
}

.page-about .btn-ghost {
  background: transparent;
  color: var(--c-text);
  border-color: var(--c-border-strong);
}

.page-about .btn-ghost:hover {
  border-color: var(--about-green);
  color: var(--about-green);
  transform: translateY(-2px);
}

.page-about .about-hero-figure {
  position: relative;
}

.page-about .img-frame {
  position: relative;
  border-radius: var(--about-radius-lg);
  overflow: hidden;
  background: var(--about-panel);
  box-shadow: var(--shadow-panel);
}

.page-about .about-hero-img {
  aspect-ratio: 16 / 10;
}

.page-about .about-hero-img img,
.page-about .about-team-img img,
.page-about .about-henan-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-about .coord-label-hero {
  position: absolute;
  bottom: 16px;
  left: 16px;
  background: rgba(6, 8, 16, 0.85);
  padding: 6px 12px;
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--about-green);
  letter-spacing: 0.08em;
  border-left: 2px solid var(--about-green);
  pointer-events: none;
}

.page-about .about-story {
  padding: 40px 0;
}

.page-about .about-story-head {
  margin-bottom: 48px;
}

.page-about .about-story-head .section-title,
.page-about .about-timeline .section-title,
.page-about .about-team .section-title,
.page-about .about-principles .section-title,
.page-about .about-honors .section-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.01em;
  margin: 12px 0 16px;
  text-transform: uppercase;
  line-height: 1.1;
}

.page-about .about-story-head .section-desc,
.page-about .about-team .section-desc {
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-text-dim);
  max-width: 720px;
}

.page-about .grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-about .panel {
  background: var(--about-panel);
  border-radius: var(--about-radius-md);
  border: 1px solid transparent;
  position: relative;
  box-shadow: var(--shadow-panel);
  transition: transform 0.4s var(--about-ease), border-color 0.4s var(--about-ease);
}

.page-about .panel:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 255, 102, 0.35);
}

.page-about .panel::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 0;
  height: 0;
  border-left: 24px solid transparent;
  border-bottom: 24px solid transparent;
  border-right: 24px solid var(--about-green);
  border-top: 24px solid var(--about-green);
  border-radius: 0 var(--about-radius-md) 0 0;
  opacity: 0.8;
}

.page-about .about-story-panel {
  padding: 32px;
}

.page-about .panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.page-about .panel-title {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--c-text);
}

.page-about .badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(0, 255, 102, 0.1);
  border: 1px solid rgba(0, 255, 102, 0.35);
  color: var(--about-green);
  font-family: var(--font-data);
  font-size: 12px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
}

.page-about .badge-warn {
  background: rgba(255, 106, 0, 0.1);
  border-color: rgba(255, 106, 0, 0.35);
  color: var(--about-orange);
}

.page-about .badge-henan {
  background: rgba(249, 199, 79, 0.1);
  border-color: rgba(249, 199, 79, 0.35);
  color: var(--about-warm);
}

.page-about .panel-body p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-text-dim);
  margin: 0;
}

.page-about .about-timeline {
  padding: 80px 0 40px;
  position: relative;
}

.page-about .about-timeline-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 48px;
}

.page-about .timeline-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.page-about .timeline-list::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 14px;
  width: 2px;
  background: linear-gradient(to bottom, var(--about-warm), var(--about-green), var(--about-orange));
  opacity: 0.5;
}

.page-about .timeline-item {
  position: relative;
  padding-left: 56px;
  padding-bottom: 40px;
}

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

.page-about .timeline-node {
  position: absolute;
  left: 0;
  top: 8px;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-about .timeline-dot {
  width: 14px;
  height: 14px;
  background: var(--about-warm);
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(249, 199, 79, 0.12), 0 0 16px rgba(249, 199, 79, 0.5);
}

.page-about .timeline-card {
  background: var(--about-panel);
  border-radius: var(--about-radius-md);
  border: 1px solid transparent;
  padding: 28px;
  box-shadow: var(--shadow-panel);
  transition: transform 0.4s var(--about-ease), border-color 0.4s var(--about-ease);
  position: relative;
  z-index: 1;
}

.page-about .timeline-card:hover {
  transform: translateX(4px);
  border-color: rgba(249, 199, 79, 0.3);
}

.page-about .timeline-year {
  font-family: var(--font-data);
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--about-green);
  display: block;
  margin-bottom: 8px;
}

.page-about .timeline-card h3 {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 22px;
  margin: 0 0 12px;
  letter-spacing: 0.01em;
  color: var(--c-text);
}

.page-about .timeline-card p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-text-dim);
  margin: 0;
}

.page-about .timeline-side {
  position: relative;
}

.page-about .timeline-stats-panel {
  background: rgba(6, 8, 16, 0.7);
  border: 1px solid rgba(0, 255, 102, 0.2);
  padding: 32px;
  border-radius: var(--about-radius-lg);
}

.page-about .timeline-stats-panel .panel-title {
  font-size: 16px;
  color: var(--c-text-dim);
}

.page-about .timeline-stats-panel::before {
  border-right-color: var(--about-warm);
  border-top-color: var(--about-warm);
}

.page-about .timeline-stat-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 24px;
}

.page-about .timeline-stat {
  text-align: left;
}

.page-about .data-num {
  font-family: var(--font-data);
  font-weight: 500;
  font-size: 28px;
  letter-spacing: -0.03em;
  color: var(--c-text);
  line-height: 1.1;
}

.page-about .data-num.is-accent {
  color: var(--about-green);
}

.page-about .timeline-stat-label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  color: var(--c-text-dim);
  line-height: 1.4;
}

.page-about .about-team {
  padding: 80px 0;
}

.page-about .about-team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
  margin-top: 48px;
}

.page-about .about-team-img-wrap {
  position: relative;
}

.page-about .about-team-img {
  aspect-ratio: 10 / 8;
}

.page-about .about-team-img-wrap::after {
  content: "TEAM · 20人";
  position: absolute;
  top: 16px;
  right: 16px;
  background: rgba(0, 255, 102, 0.9);
  color: #060810;
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
}

.page-about .about-team-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-about .about-team-card {
  padding: 24px 28px;
}

.page-about .about-team-card .panel-head {
  margin-bottom: 10px;
}

.page-about .about-team-card .panel-body p {
  margin: 0;
}

.page-about .about-principles {
  padding: 40px 0 80px;
}

.page-about .grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 40px;
}

.page-about .about-principle-card {
  padding: 40px 32px;
  overflow: hidden;
}

.page-about .about-principle-card::before {
  border-right-color: var(--about-orange);
  border-top-color: var(--about-orange);
  opacity: 0.6;
}

.page-about .principle-num {
  font-family: var(--font-data);
  font-weight: 500;
  font-size: 48px;
  color: transparent;
  -webkit-text-stroke: 1px rgba(0, 255, 102, 0.35);
  display: block;
  line-height: 1;
  margin-bottom: 20px;
}

.page-about .about-principle-card h3 {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 24px;
  margin: 0 0 12px;
  color: var(--c-text);
  letter-spacing: 0.02em;
}

.page-about .about-principle-card p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-text-dim);
  margin: 0;
}

.page-about .about-honors {
  padding: 80px 0;
  background: rgba(6, 8, 16, 0.4);
  position: relative;
}

.page-about .about-honors-inner {
  background: linear-gradient(135deg, rgba(18, 26, 44, 0.9), rgba(6, 8, 16, 0.95));
  border: 1px solid rgba(154, 168, 192, 0.15);
  border-radius: var(--about-radius-lg);
  padding: 40px 32px;
  box-shadow: var(--shadow-panel);
  position: relative;
  overflow: hidden;
}

.page-about .about-honors-inner::before {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -40px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  border: 1px solid rgba(249, 199, 79, 0.2);
  pointer-events: none;
}

.page-about .honor-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 32px;
  position: relative;
  z-index: 1;
}

.page-about .honor-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 24px;
  border: 1px solid rgba(154, 168, 192, 0.14);
  border-left: 3px solid var(--about-green);
  border-radius: var(--about-radius-md);
  background: rgba(10, 14, 26, 0.6);
  transition: border-color 0.3s var(--about-ease), transform 0.3s var(--about-ease), box-shadow 0.3s var(--about-ease);
}

.page-about .honor-item:hover {
  border-color: rgba(0, 255, 102, 0.4);
  transform: translateX(6px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.page-about .honor-item[data-open] {
  cursor: default;
}

.page-about .honor-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: rgba(0, 255, 102, 0.08);
  border: 1px solid rgba(0, 255, 102, 0.2);
}

.page-about .honor-item:last-child .honor-icon {
  background: rgba(249, 199, 79, 0.08);
  border-color: rgba(249, 199, 79, 0.2);
}

.page-about .honor-body h3 {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 20px;
  margin: 0 0 10px;
  letter-spacing: 0.02em;
  color: var(--c-text);
}

.page-about .honor-body p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-text-dim);
  margin: 0;
}

.page-about .about-cta {
  padding: 80px 0;
}

.page-about .about-cta-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
  padding: 40px 32px;
  border-radius: var(--about-radius-lg);
  border: 1px solid rgba(0, 255, 102, 0.15);
  overflow: hidden;
  position: relative;
}

.page-about .about-cta-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top right, rgba(0, 255, 102, 0.08), transparent 60%);
  pointer-events: none;
}

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

.page-about .about-cta-copy h2 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.15;
  margin: 12px 0 16px;
  text-transform: uppercase;
  letter-spacing: -0.01em;
}

.page-about .about-cta-copy p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-text-dim);
  margin: 0 0 28px;
  max-width: 560px;
}

.page-about .about-cta-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-about .about-henan-img {
  aspect-ratio: 3 / 4;
  max-width: 320px;
  width: 100%;
  margin-left: auto;
  border-radius: var(--about-radius-lg);
  border: 1px solid rgba(249, 199, 79, 0.2);
  position: relative;
  z-index: 1;
}

.page-about .about-henan-img::after {
  content: "豫 · 二七塔";
  position: absolute;
  bottom: 12px;
  left: 12px;
  background: rgba(6, 8, 16, 0.85);
  color: var(--about-warm);
  font-family: var(--font-data);
  font-size: 12px;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
}

.page-about .about-henan-img img {
  border-radius: var(--about-radius-lg);
}

.is-revealed {
  opacity: 1;
}

@media (min-width: 768px) {
  .page-about .grid-2,
  .page-about .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .honor-list {
    grid-template-columns: 1fr;
  }

  .page-about .about-hero-inner {
    grid-template-columns: 1fr 1fr;
    gap: 56px;
  }

  .page-about .about-timeline-wrap {
    grid-template-columns: 1fr 320px;
    gap: 48px;
  }

  .page-about .about-team-grid {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }

  .page-about .about-cta-card {
    grid-template-columns: 1fr auto;
    padding: 48px;
  }

  .page-about .timeline-stat-list {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (min-width: 1024px) {
  .page-about .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .timeline-list::before {
    left: 50%;
    margin-left: -1px;
  }

  .page-about .timeline-item {
    padding-left: 0;
    width: 50%;
    padding-right: 48px;
    text-align: right;
  }

  .page-about .timeline-item:nth-child(even) {
    margin-left: 50%;
    padding-right: 0;
    padding-left: 48px;
    text-align: left;
  }

  .page-about .timeline-node {
    left: auto;
    right: -15px;
    top: 12px;
  }

  .page-about .timeline-item:nth-child(even) .timeline-node {
    right: auto;
    left: -15px;
  }

  .page-about .timeline-card {
    text-align: left;
  }

  .page-about .about-hero {
    padding-top: 88px;
  }

  .page-about .about-cta-card {
    grid-template-columns: 1fr 0.6fr;
  }
}