.page-about {
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  position: relative;
}

.page-about img {
  max-width: 100%;
  height: auto;
}

.page-about .breadcrumb {
  margin-bottom: 16px;
}

.page-about .section-header {
  margin-bottom: 8px;
}

.page-about .section-desc {
  margin-top: 8px;
  max-width: 36em;
}

/* ===== Hero ===== */
.page-about .about-hero {
  position: relative;
  padding: 28px 0 32px;
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(245, 179, 1, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  bottom: 8%;
  left: 4%;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(0, 255, 157, 0.07), transparent 70%);
  pointer-events: none;
}

.page-about .hero-grid {
  display: grid;
  gap: 24px;
  margin-top: 20px;
  position: relative;
  z-index: 1;
}

.page-about .hero-title {
  font-family: var(--font-heading);
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: 0.01em;
  color: var(--text-primary);
  margin: 0 0 16px;
  max-width: 12em;
}

.page-about .hero-desc {
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.75;
  max-width: 46em;
  margin: 0 0 24px;
}

.page-about .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.page-about .hero-stat {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-elev) 100%);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03);
}

.page-about .hero-stat .stat-number {
  font-size: 26px;
  color: var(--accent);
  line-height: 1.1;
}

.page-about .hero-stat-label {
  font-size: 13px;
  color: var(--text-muted);
}

.page-about .hero-figure {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 32px 0 0;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow-card);
}

.page-about .hero-figure img {
  display: block;
  width: 100%;
  min-height: 170px;
  object-fit: cover;
  aspect-ratio: 3 / 1;
}

.page-about .hero-figure figcaption {
  font-size: 13px;
  color: var(--text-primary);
  background: var(--bg-secondary);
  padding: 10px 12px;
}

.page-about .page-index {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
  position: relative;
  z-index: 1;
}

.page-about .page-index-link {
  display: inline-block;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(245, 179, 1, 0.35);
  color: var(--accent-light);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  background: rgba(16, 42, 72, 0.4);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-about .page-index-link:hover,
.page-about .page-index-link:focus-visible {
  background: rgba(245, 179, 1, 0.14);
  border-color: var(--accent);
  color: var(--accent-light);
}

/* ===== 通用章节 ===== */
.page-about .about-section {
  padding: 56px 0;
  position: relative;
}

.page-about .about-section + .about-section {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.page-about .breadcrumb-sep {
  color: var(--text-muted);
  margin: 0 6px;
}

/* ===== 时间线 ===== */
.page-about .timeline {
  margin-top: 40px;
  display: grid;
  gap: 0;
  position: relative;
  padding-left: 0;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  top: 4px;
  bottom: 12px;
  left: 28px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), var(--accent-green));
  opacity: 0.28;
}

.page-about .timeline-item {
  position: relative;
  padding: 0 0 36px 76px;
}

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

.page-about .timeline-year {
  position: absolute;
  left: 0;
  top: 0;
  min-width: 56px;
  height: 28px;
  padding: 0 10px;
  border-radius: var(--radius-pill);
  background: var(--bg-card);
  border: 1px solid rgba(245, 179, 1, 0.5);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 10px rgba(245, 179, 1, 0.08);
}

.page-about .timeline-year-num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.page-about .timeline-card {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-elev) 100%);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.page-about .timeline-card:hover {
  transform: translateY(-2px);
  border-color: rgba(245, 179, 1, 0.25);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
}

.page-about .timeline-card h3 {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 8px;
}

.page-about .timeline-card p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.75;
  margin: 0;
}

/* ===== 88LW 使命 ===== */
.page-about .mission-grid {
  display: grid;
  gap: 16px;
  margin-top: 32px;
}

.page-about .mission-card {
  background: var(--bg-secondary);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius-md);
  padding: 24px 22px;
  position: relative;
  overflow: hidden;
}

.page-about .mission-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-green));
  opacity: 0.7;
}

.page-about .mission-card--primary {
  background: linear-gradient(135deg, rgba(245, 179, 1, 0.1), var(--bg-secondary) 60%);
  border-color: rgba(245, 179, 1, 0.3);
}

.page-about .mission-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.1em;
}

.page-about .mission-card h3 {
  font-family: var(--font-heading);
  font-size: 19px;
  margin: 10px 0 8px;
  color: var(--text-primary);
}

.page-about .mission-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-muted);
  margin: 0;
}

.page-about .mission-link {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 24px;
}

.page-about .text-link {
  color: var(--accent-light);
  text-decoration: underline;
  text-underline-offset: 4px;
  font-size: 14px;
}

/* ===== 数据能力 ===== */
.page-about .data-block {
  display: grid;
  gap: 28px;
  margin-top: 32px;
}

.page-about .data-visual {
  margin: 0;
}

.page-about .data-visual img {
  width: 100%;
  display: block;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  object-fit: cover;
}

.page-about .data-visual figcaption {
  margin-top: 8px;
  font-size: 13px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.page-about .data-list {
  display: grid;
  gap: 14px;
}

.page-about .data-point {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  padding: 16px;
  border-left: 3px solid var(--accent);
}

.page-about .data-point-icon {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  border: 1px solid rgba(245, 179, 1, 0.4);
  border-radius: 4px;
  padding: 4px 6px;
  line-height: 1;
  margin-top: 2px;
  white-space: nowrap;
  background: rgba(16, 42, 72, 0.6);
}

.page-about .data-point h3 {
  font-size: 16px;
  font-family: var(--font-heading);
  font-weight: 700;
  margin: 0 0 4px;
  color: var(--text-primary);
}

.page-about .data-point p {
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-muted);
  margin: 0;
}

/* ===== 团队构成 ===== */
.page-about .team-block {
  display: grid;
  gap: 32px;
  margin-top: 36px;
  align-items: center;
}

.page-about .team-ring-wrap {
  display: flex;
  justify-content: center;
}

.page-about .team-ring {
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: conic-gradient(
    var(--accent) 0 29.9%,
    var(--accent-green) 29.9% 52.1%,
    var(--text-primary) 52.1% 87.1%,
    var(--text-muted) 87.1% 100%
  );
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 30px rgba(0, 255, 157, 0.1);
}

.page-about .team-ring::before {
  content: "";
  position: absolute;
  inset: 27%;
  background: var(--bg-primary);
  border-radius: 50%;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
}

.page-about .team-ring-total {
  position: relative;
  z-index: 1;
  font-family: var(--font-mono);
  font-size: 46px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.page-about .team-ring-unit {
  font-size: 15px;
  color: var(--text-muted);
  margin-left: 4px;
}

.page-about .team-legend {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 14px;
}

.page-about .team-legend-item {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--bg-secondary);
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.page-about .team-legend-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  flex-shrink: 0;
}

.page-about .dot-data {
  background: var(--accent);
  box-shadow: 0 0 10px rgba(245, 179, 1, 0.4);
}

.page-about .dot-video {
  background: var(--accent-green);
  box-shadow: 0 0 10px rgba(0, 255, 157, 0.4);
}

.page-about .dot-analysis {
  background: var(--text-primary);
}

.page-about .dot-product {
  background: var(--text-muted);
}

.page-about .team-legend-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-about .team-legend-info strong {
  font-size: 15px;
  color: var(--text-primary);
}

.page-about .team-legend-info span {
  font-size: 13px;
  color: var(--text-muted);
}

.page-about .team-grid-img {
  margin: 18px 0 0;
}

.page-about .team-grid-img img {
  display: block;
  width: 100%;
  max-height: 260px;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.07);
}

.page-about .team-grid-img figcaption {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 6px;
  font-family: var(--font-mono);
  text-align: center;
}

/* ===== 资质翻转卡 ===== */
.page-about .cert-grid {
  display: grid;
  gap: 20px;
  margin-top: 36px;
}

.page-about .flip-card {
  perspective: 1200px;
  min-height: 220px;
  cursor: pointer;
  border-radius: var(--radius-md);
}

.page-about .flip-card:focus-visible {
  outline: 2px dashed var(--accent-light);
  outline-offset: 4px;
}

.page-about .flip-inner {
  position: relative;
  width: 100%;
  min-height: 220px;
  transform-style: preserve-3d;
  transition: transform 0.55s ease;
}

.page-about .flip-card:hover .flip-inner,
.page-about .flip-card:focus .flip-inner,
.page-about .flip-card:focus-within .flip-inner {
  transform: rotateY(180deg);
}

.page-about .flip-front,
.page-about .flip-back {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.page-about .flip-front {
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-elev));
  border: 1px solid rgba(245, 179, 1, 0.35);
  box-shadow: var(--shadow-glow);
  gap: 6px;
}

.page-about .flip-back {
  background: linear-gradient(135deg, var(--bg-card), var(--bg-secondary));
  border: 1px solid var(--accent);
  transform: rotateY(180deg);
  padding: 26px;
  align-items: flex-start;
  justify-content: center;
  gap: 8px;
}

.page-about .flip-count {
  font-family: var(--font-mono);
  font-size: 40px;
  font-weight: 700;
  color: var(--accent);
  margin-top: 8px;
  line-height: 1;
}

.page-about .flip-title {
  font-size: 14px;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

.page-about .flip-back h3 {
  font-family: var(--font-heading);
  font-size: 22px;
  color: var(--accent-light);
  margin: 0;
}

.page-about .flip-back p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-muted);
  margin: 0;
}

.page-about .cert-note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
}

/* ===== 荣誉 ===== */
.page-about .award-grid {
  display: grid;
  gap: 20px;
  margin-top: 36px;
}

.page-about .award-badge {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  background: var(--bg-secondary);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius-md);
  padding: 22px;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.page-about .award-badge:hover {
  border-color: rgba(245, 179, 1, 0.4);
  transform: translateY(-2px);
}

.page-about .award-medal {
  flex-shrink: 0;
}

.page-about .award-info h3 {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 6px;
}

.page-about .award-info p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
}

/* ===== 生态合作 ===== */
.page-about .eco-map {
  margin-top: 36px;
  position: relative;
}

.page-about .eco-core {
  text-align: center;
  padding: 26px 16px;
  background: var(--bg-secondary);
  border: 1px solid rgba(245, 179, 1, 0.35);
  border-radius: var(--radius-lg);
  max-width: 380px;
  margin: 0 auto;
  box-shadow: var(--shadow-glow);
}

.page-about .eco-core-tag {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 0.08em;
  display: block;
}

.page-about .eco-core p {
  font-size: 14px;
  color: var(--text-muted);
  margin: 8px 0 0;
}

.page-about .eco-bus {
  height: 36px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), var(--accent-green));
  margin: 0 auto;
  opacity: 0.6;
}

.page-about .eco-grid {
  display: grid;
  gap: 16px;
}

.page-about .eco-card {
  position: relative;
  background: var(--bg-secondary);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: center;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.page-about .eco-card::before {
  content: "";
  display: block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  margin: -8px auto 14px;
  box-shadow: 0 0 12px rgba(245, 179, 1, 0.5);
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.page-about .eco-card:hover {
  border-color: rgba(245, 179, 1, 0.5);
  box-shadow: var(--shadow-glow);
}

.page-about .eco-card:hover::before {
  box-shadow: 0 0 18px rgba(245, 179, 1, 0.85);
  transform: scale(1.15);
}

.page-about .eco-card h3 {
  font-family: var(--font-heading);
  font-size: 18px;
  color: var(--text-primary);
  margin: 0 0 8px;
}

.page-about .eco-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
  margin: 0;
}

/* ===== 未来展望 ===== */
.page-about .future-panel {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-elev) 100%);
  border-radius: var(--radius-lg);
  padding: 36px 24px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  position: relative;
  overflow: hidden;
}

.page-about .future-panel::after {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -40px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(245, 179, 1, 0.14), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.page-about .future-grid {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

.page-about .future-topic {
  background: rgba(10, 30, 60, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  padding: 20px 18px;
  position: relative;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.page-about .future-topic:hover {
  border-color: rgba(245, 179, 1, 0.3);
  transform: translateY(-2px);
}

.page-about .future-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  display: block;
  margin-bottom: 10px;
}

.page-about .future-topic h3 {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 6px;
}

.page-about .future-topic p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
  margin: 0;
}

.page-about .future-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
  position: relative;
  z-index: 1;
}

/* ===== 动效偏好 ===== */
@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition: none !important;
    animation: none !important;
  }
}

/* ===== 平板及以上 ===== */
@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 36px 0 40px;
  }

  .page-about .hero-grid {
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
    gap: 40px;
  }

  .page-about .hero-title {
    font-size: 38px;
  }

  .page-about .hero-figure figcaption {
    position: absolute;
    left: 16px;
    bottom: 16px;
    padding: 8px 12px;
    background: rgba(10, 30, 60, 0.88);
    border-radius: var(--radius-sm);
    backdrop-filter: blur(4px);
  }

  .page-about .about-section {
    padding: 68px 0;
  }

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

  .page-about .data-block {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: center;
  }

  .page-about .team-block {
    grid-template-columns: minmax(280px, 360px) 1fr;
    gap: 40px;
  }

  .page-about .team-grid-img img {
    max-height: 220px;
  }

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

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

  .page-about .eco-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

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

  .page-about .future-panel {
    padding: 48px 36px;
  }
}

/* ===== 桌面端 ===== */
@media (min-width: 1024px) {
  .page-about .about-hero {
    padding: 44px 0 48px;
  }

  .page-about .hero-title {
    font-size: 46px;
  }

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

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

  .page-about .timeline {
    margin-left: 24px;
  }

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