/* ===== 公司介绍页专属样式 ===== */

.page-about {
  --about-line: rgba(255, 255, 255, 0.16);
  --about-card-bg: rgba(255, 255, 255, 0.05);
  --about-card-border: rgba(255, 255, 255, 0.09);
  --about-card-bg-hover: rgba(255, 255, 255, 0.1);
  --about-node-glow: rgba(255, 107, 0, 0.24);
  --about-accent-soft: rgba(255, 107, 0, 0.14);
}

/* ---------- Hero 首屏 ---------- */
.page-about__hero {
  position: relative;
  overflow: hidden;
}

.page-about__hero-top {
  position: relative;
  z-index: 2;
  padding-top: calc(var(--header-height) + 18px);
}

.page-about__breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 13px;
}

.page-about__breadcrumbs a {
  color: rgba(255, 255, 255, 0.64);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.page-about__breadcrumbs a:hover {
  color: var(--color-accent);
}

.page-about__breadcrumbs .breadcrumbs__current {
  color: rgba(255, 255, 255, 0.92);
}

.page-about__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.page-about__hero-curve {
  position: absolute;
  right: -40px;
  bottom: -24px;
  width: min(62vw, 520px);
  height: auto;
  opacity: 0.56;
  pointer-events: none;
}

/* ---------- 平台简介 ---------- */
.page-about__intro {
  background: var(--color-bg);
}

.page-about__intro-grid {
  display: grid;
  gap: 36px;
}

.page-about__intro-copy p + p {
  margin-top: 16px;
}

.page-about__intro-copy .btn {
  margin-top: 24px;
}

.page-about__intro-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.page-about__stat-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 118px;
  padding: 18px 20px;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.page-about__stat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.page-about__stat-card--accent {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-soft) 100%);
  box-shadow: var(--shadow-accent);
}

.page-about__stat-num {
  font-family: var(--font-num);
  font-size: clamp(34px, 6vw, 50px);
  font-weight: 700;
  line-height: 1;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.page-about__stat-card--accent .page-about__stat-num {
  color: var(--color-white);
}

.page-about__stat-unit {
  font-size: 0.5em;
  font-weight: 700;
  margin-left: 2px;
  color: var(--color-text-soft);
}

.page-about__stat-card--accent .page-about__stat-unit {
  color: rgba(255, 255, 255, 0.85);
}

.page-about__stat-label {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-text-soft);
}

.page-about__stat-card--accent .page-about__stat-label {
  color: rgba(255, 255, 255, 0.92);
}

/* ---------- 发展历程 ---------- */
.page-about__milestones {
  background: var(--color-primary);
}

.page-about__section-head {
  margin-bottom: 40px;
}

.page-about__section-head .lead {
  margin-top: 16px;
}

.page-about__timeline {
  position: relative;
  margin-top: 8px;
}

.page-about__timeline-item {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 20px;
}

.page-about__timeline-item:last-child {
  margin-bottom: 0;
}

.page-about__timeline-node {
  position: relative;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 5px;
  width: 70px;
  padding-top: 4px;
}

.page-about__timeline-node::before {
  content: "";
  position: absolute;
  top: 20px;
  bottom: -24px;
  right: -9px;
  width: 2px;
  background: var(--about-line);
}

.page-about__timeline-item:last-child .page-about__timeline-node::before {
  display: none;
}

.page-about__timeline-node::after {
  content: "";
  position: absolute;
  top: 14px;
  right: -14px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 3px solid var(--color-primary);
  box-shadow: 0 0 0 3px var(--about-node-glow);
}

.page-about__timeline-year {
  font-family: var(--font-num);
  font-size: 24px;
  font-weight: 700;
  line-height: 1;
  color: var(--color-white);
  letter-spacing: -0.02em;
}

.page-about__timeline-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-accent);
  background: var(--about-accent-soft);
  padding: 3px 9px;
  border-radius: var(--radius-pill);
}

.page-about__timeline-card {
  flex: 1;
  background: var(--about-card-bg);
  border: 1px solid var(--about-card-border);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  transition: transform var(--transition-base), border-color var(--transition-base), background var(--transition-base), box-shadow var(--transition-base);
}

.page-about__timeline-card:hover {
  transform: translateY(-4px);
  background: var(--about-card-bg-hover);
  border-color: rgba(255, 107, 0, 0.45);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.22);
}

.page-about__timeline-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--color-white);
  letter-spacing: 0.01em;
}

.page-about__timeline-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.72);
}

.page-about__timeline-figure {
  margin: 40px 0 0;
}

.page-about__timeline-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 2 / 1;
}

.page-about__timeline-figure figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  text-align: right;
}

/* ---------- 团队与组织架构 ---------- */
.page-about__team {
  background: var(--color-bg);
}

.page-about__team-grid {
  display: grid;
  gap: 32px;
}

.page-about__team-copy p + p {
  margin-top: 16px;
}

.page-about__team-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 26px;
}

.page-about__team-stat {
  display: flex;
  flex-direction: column;
  min-width: 88px;
  padding: 16px 20px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.page-about__team-num {
  font-family: var(--font-num);
  font-size: 38px;
  font-weight: 700;
  line-height: 1;
  color: var(--color-primary);
}

.page-about__team-label {
  margin-top: 6px;
  font-size: 13px;
  color: var(--color-text-soft);
}

.page-about__team-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 22px 0 0;
}

.page-about__team-tags .tag {
  font-size: 13px;
  padding: 7px 16px;
}

.page-about__team-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

/* ---------- 资质与认证 ---------- */
.page-about__credential {
  background: var(--color-white);
}

.page-about__credential-grid {
  display: grid;
  gap: 32px;
}

.page-about__credential-main .lead {
  margin-bottom: 24px;
}

.page-about__credential-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 22px 24px;
  background: var(--color-bg);
  border: 1px solid #e8edf2;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.page-about__credential-card + .page-about__credential-card {
  margin-top: 14px;
}

.page-about__credential-card:hover {
  border-color: rgba(255, 107, 0, 0.4);
  box-shadow: var(--shadow-md);
}

.page-about__credential-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--about-accent-soft);
  color: var(--color-accent);
}

.page-about__credential-card h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
}

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

.page-about__credential-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 1 / 1;
}

/* ---------- 合作生态与荣誉 ---------- */
.page-about__partners {
  background: var(--color-primary);
}

.page-about__ecosystem {
  display: grid;
  gap: 36px;
  margin-top: 36px;
}

.page-about__partners-panel {
  padding: 26px 24px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
}

.page-about__partners-title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--color-white);
}

.page-about__partners-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about__partner-tag {
  font-size: 14px;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.82);
  transition: border-color var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
}

.page-about__partner-tag:hover {
  border-color: var(--color-accent);
  background: var(--about-accent-soft);
  color: var(--color-white);
}

.page-about__partners-note {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.58);
}

.page-about__honors {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-about__honor-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 22px 24px;
  background: var(--about-card-bg);
  border: 1px solid var(--about-card-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

.page-about__honor-card:hover {
  border-color: rgba(255, 107, 0, 0.4);
  background: var(--about-card-bg-hover);
  transform: translateX(4px);
}

.page-about__honor-num {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-accent);
  padding-top: 3px;
}

.page-about__honor-card h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-white);
}

.page-about__honor-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
}

.page-about__cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 40px;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-about__intro-grid {
    grid-template-columns: 1fr 1fr;
    gap: 44px;
  }

  .page-about__intro-stats {
    align-content: start;
  }

  .page-about__intro-copy {
    padding-right: 16px;
  }

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

  .page-about__timeline-node {
    width: 100px;
  }

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

  .page-about__timeline-card h3 {
    font-size: 19px;
  }

  .page-about__credential-card {
    padding: 26px 28px;
  }

  .page-about__ecosystem {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 28px;
  }
}

@media (min-width: 960px) {
  .page-about__section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 48px;
  }

  .page-about__section-head .lead {
    max-width: 460px;
    margin-top: 0;
    text-align: right;
  }

  .page-about__intro-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 64px;
  }

  .page-about__intro-stats {
    grid-template-columns: 1fr 1fr;
    gap: 18px;
  }

  .page-about__stat-card--accent {
    grid-column: auto;
  }

  .page-about__stat-card {
    min-height: 132px;
    padding: 22px 24px;
  }

  .page-about__timeline {
    padding: 0 40px;
  }

  .page-about__timeline-item {
    gap: 48px;
  }

  .page-about__timeline-node {
    width: 120px;
    padding-top: 6px;
  }

  .page-about__timeline-year {
    font-size: 30px;
  }

  .page-about__team-grid {
    grid-template-columns: 1.08fr 0.92fr;
    gap: 56px;
    align-items: center;
  }

  .page-about__team-image {
    aspect-ratio: 4 / 3;
  }

  .page-about__credential-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 56px;
    align-items: center;
  }

  .page-about__ecosystem {
    grid-template-columns: 0.85fr 1.15fr;
    gap: 56px;
  }

  .page-about__cta-row {
    margin-top: 48px;
  }
}