.page-about {
  --about-radius: 6px;
  --about-ease: 0.22s ease;
}

.page-about section[id] {
  scroll-margin-top: 5rem;
}

/* ===== 首屏：深绿斜切面板 + 核心数据索引 ===== */
.page-about .page-hero {
  position: relative;
  padding: 3rem 0 4.5rem;
  background: linear-gradient(115deg, var(--color-primary-deep) 0%, var(--color-primary) 55%, #0f8a4c 100%);
  color: var(--color-white);
  overflow: hidden;
}

.page-about .page-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: -12%;
  width: 48%;
  height: 100%;
  background: repeating-linear-gradient(-45deg, rgba(255, 255, 255, 0.045) 0 10px, transparent 10px 20px);
  transform: skewX(-6deg);
  pointer-events: none;
}

.page-about .page-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 8px;
  background: linear-gradient(90deg, var(--color-gold) 0%, transparent 82%);
}

.page-about .page-hero .breadcrumb {
  margin-bottom: 2.5rem;
  color: rgba(245, 240, 230, 0.7);
}

.page-about .page-hero .breadcrumb a {
  color: rgba(245, 240, 230, 0.85);
  text-decoration: none;
}

.page-about .page-hero .breadcrumb a:hover {
  color: var(--color-gold);
}

.page-about .page-hero .breadcrumb span {
  margin: 0 0.4rem;
  opacity: 0.65;
}

.page-about .page-hero .breadcrumb [aria-current="page"] {
  color: var(--color-gold);
  opacity: 1;
}

.page-about .hero-badge {
  display: inline-block;
  background: var(--color-gold);
  color: var(--color-ink);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  padding: 0.32rem 0.85rem;
  border-radius: 999px;
  margin-bottom: 1.1rem;
}

.page-about .hero-copy h1 {
  margin: 0 0 1.1rem;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.1rem, 5.5vw, 3.4rem);
  line-height: 1.12;
  color: var(--color-white);
  letter-spacing: 0.01em;
}

.page-about .hero-lead {
  margin: 0 0 1.8rem;
  max-width: 38em;
  color: rgba(245, 240, 230, 0.88);
  font-size: 1.02rem;
  line-height: 1.85;
}

.page-about .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-bottom: 2.2rem;
}

.page-about .btn--ghost {
  background: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.55);
}

.page-about .btn--ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--color-white);
}

.page-about .hero-index {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.7rem;
}

.page-about .hero-index-item {
  background: rgba(255, 255, 255, 0.08);
  border-left: 3px solid var(--color-gold);
  border-radius: 4px;
  padding: 0.95rem 1.05rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.page-about .hero-index-label {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: rgba(245, 240, 230, 0.75);
}

.page-about .hero-index-value {
  font-family: var(--font-display);
  font-size: 1.9rem;
  line-height: 1;
  color: var(--color-gold);
}

/* ===== 章节头 ===== */
.page-about .chapter-head {
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  margin-bottom: 2.2rem;
}

.page-about .chapter-head .chapter-number {
  color: var(--color-primary);
}

.page-about .chapter-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
}

/* ===== 品牌起源 ===== */
.page-about .section--origin {
  position: relative;
}

.page-about .section--origin::after {
  content: "";
  position: absolute;
  right: -4rem;
  bottom: 1.5rem;
  width: 13rem;
  height: 13rem;
  background: repeating-linear-gradient(-45deg, var(--color-gold) 0 1px, transparent 1px 11px);
  opacity: 0.14;
  pointer-events: none;
}

.page-about .origin-layout {
  display: grid;
  gap: 2rem;
  align-items: center;
}

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

.page-about .origin-copy p {
  margin: 0 0 1rem;
  line-height: 1.8;
  color: var(--color-gray);
}

.page-about .origin-copy .origin-intro {
  font-size: 1.02rem;
  color: var(--color-ink);
}

.page-about .origin-media,
.page-about .stats-media {
  margin: 0;
  overflow: hidden;
  border-radius: 8px;
  background: var(--color-primary);
}

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

/* ===== 发展历程：时间轴 ===== */
.page-about .timeline {
  position: relative;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 1rem;
  top: 0.4rem;
  bottom: 0.4rem;
  width: 3px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-primary) 72%, var(--color-gold) 100%);
}

.page-about .timeline-item {
  position: relative;
  padding-left: 2.5rem;
  margin-bottom: 1.6rem;
}

.page-about .timeline-marker {
  position: absolute;
  left: 9.5px;
  top: 1.45rem;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-gold);
  border: 3px solid var(--color-primary);
}

.page-about .timeline-card {
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--about-radius);
  padding: 1.3rem 1.4rem;
  box-shadow: 0 8px 26px rgba(0, 0, 0, 0.05);
  transition: transform var(--about-ease), border-color var(--about-ease), box-shadow var(--about-ease);
}

.page-about .timeline-card:hover {
  transform: translateX(4px);
  border-left-color: var(--color-gold);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.08);
}

.page-about .timeline-card h3 {
  margin: 0.45rem 0 0.5rem;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.45rem;
  line-height: 1;
  color: var(--color-primary);
}

.page-about .timeline-card p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--color-gray);
}

/* ===== 数据与服务 ===== */
.page-about .section--stats {
  position: relative;
  background: linear-gradient(120deg, rgba(10, 92, 54, 0.05) 0%, transparent 42%), var(--color-paper);
  padding-top: 4.6rem;
}

.page-about .section--stats::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 8px;
  background: linear-gradient(90deg, var(--color-gold) 0%, var(--color-primary) 60%, rgba(10, 92, 54, 0) 100%);
}

.page-about .stats-layout {
  display: grid;
  gap: 2rem;
}

.page-about .stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.page-about .stat-card {
  position: relative;
  overflow: hidden;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--about-radius);
  padding: 1.25rem 1.1rem;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.04);
  transition: transform var(--about-ease), box-shadow var(--about-ease);
}

.page-about .stat-card::after {
  content: "";
  position: absolute;
  top: -20px;
  right: -20px;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--color-gold), transparent);
  opacity: 0.3;
  transform: rotate(45deg);
}

.page-about .stat-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.08);
}

.page-about .stat-value {
  display: block;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 2rem;
  line-height: 1;
  color: var(--color-primary);
}

.page-about .stat-unit {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-ink);
}

.page-about .stat-card p {
  margin: 0.55rem 0 0;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--color-muted);
}

.page-about .stats-media {
  min-height: 200px;
}

/* ===== 团队与组织 ===== */
.page-about .team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-about .team-card {
  position: relative;
  overflow: hidden;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--about-radius);
  padding: 1.5rem 1.4rem 1.4rem 1.7rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.045);
  transition: transform var(--about-ease), box-shadow var(--about-ease);
}

.page-about .team-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-gold) 100%);
}

.page-about .team-card::after {
  content: "";
  position: absolute;
  top: -18px;
  right: -18px;
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--color-gold), transparent);
  opacity: 0.24;
  transform: rotate(45deg);
}

.page-about .team-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.08);
}

.page-about .team-code {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  margin-bottom: 0.85rem;
  background: var(--color-primary);
  color: var(--color-gold);
  font-family: var(--font-display);
  font-size: 0.95rem;
  border-radius: 4px;
}

.page-about .team-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-ink);
}

.page-about .team-card p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--color-gray);
}

/* ===== 品牌使命与愿景 ===== */
.page-about .section--mission {
  position: relative;
  overflow: hidden;
  padding: 5.5rem 0;
}

.page-about .mission-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

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

.page-about .section--mission::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(135deg, rgba(6, 66, 40, 0.93) 0%, rgba(10, 92, 54, 0.82) 48%, rgba(10, 92, 54, 0.7) 100%);
}

.page-about .section--mission .container {
  position: relative;
  z-index: 2;
}

.page-about .mission-card {
  max-width: 720px;
  color: var(--color-white);
}

.page-about .mission-card .chapter-number {
  color: var(--color-gold);
}

.page-about .mission-card h2 {
  color: var(--color-white);
}

.page-about .mission-copy {
  margin: 0 0 1.8rem;
  font-size: 1.04rem;
  line-height: 1.85;
  color: rgba(245, 240, 230, 0.92);
}

.page-about .mission-list {
  list-style: none;
  margin: 0 0 2.2rem;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}

.page-about .mission-list li {
  position: relative;
  padding-left: 1.4rem;
  font-size: 0.95rem;
  line-height: 1.7;
  color: rgba(245, 240, 230, 0.92);
}

.page-about .mission-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 8px;
  height: 8px;
  transform: rotate(45deg);
  background: var(--color-gold);
}

.page-about .mission-list strong {
  color: var(--color-white);
}

.page-about .mission-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

/* ===== 桌面断点 ===== */
@media (min-width: 768px) {
  .page-about .page-hero {
    padding: 4rem 0 6rem;
  }

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

  .page-about .hero-actions {
    margin-bottom: 0;
  }

  .page-about .hero-index {
    gap: 0.9rem;
  }

  .page-about .hero-index-item {
    padding: 1.2rem 1.2rem;
  }

  .page-about .origin-layout {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }

  .page-about .timeline {
    padding: 1.2rem 0 0.6rem;
  }

  .page-about .timeline::before {
    left: 50%;
    top: 0.4rem;
    bottom: 0.8rem;
    transform: translateX(-50%);
  }

  .page-about .timeline-item {
    width: 50%;
    padding-left: 0;
    padding-right: 3rem;
    margin-bottom: 2.2rem;
  }

  .page-about .timeline-item:nth-child(even) {
    margin-left: 50%;
    padding-right: 0;
    padding-left: 3rem;
  }

  .page-about .timeline-marker {
    left: auto;
    right: 0;
    transform: translateX(50%);
    top: 1.5rem;
  }

  .page-about .timeline-item:nth-child(even) .timeline-marker {
    right: auto;
    left: 0;
    transform: translateX(-50%);
  }

  .page-about .timeline-card:hover {
    transform: translateX(4px);
  }

  .page-about .timeline-item:nth-child(even) .timeline-card:hover {
    transform: translateX(-4px);
  }

  .page-about .stats-layout {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 2.4rem;
    align-items: start;
  }

  .page-about .stats-media {
    position: sticky;
    top: 6rem;
  }

  .page-about .team-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.3rem;
  }

  .page-about .section--mission {
    padding: 6rem 0;
  }
}

@media (min-width: 1024px) {
  .page-about .team-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about .hero-index-value {
    font-size: 2.3rem;
  }
}