/* ═══════════════════════════════════════════════════════════
   assets/css/pages/about.css — 关于页 v3
   信任资产增强: 数据条 + 客户品牌 + 项目经验地图 + 团队
   ═══════════════════════════════════════════════════════════ */

/* ── 公司简介 ── */
.about-intro { max-width: var(--container-narrow); margin: 0 auto 3rem; }
.about-intro h2 { margin-bottom: 1.5rem; }
.about-desc { color: var(--color-text-muted); line-height: var(--lh-loose); margin-bottom: 1rem; font-size: var(--text-body-lg); }

/* ── 信任数据条 ── */
.about-trust-strip {
  display: flex;
  justify-content: center;
  gap: 3rem;
  padding: 2.5rem 2rem;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  margin-top: 1rem;
  color: #fff;
}
.trust-item { text-align: center; }
.trust-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
  color: var(--color-accent-400);
}
.trust-number span {
  font-size: 1rem;
  font-weight: var(--fw-medium);
  margin-left: 2px;
}
.trust-label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.8);
  margin-top: 0.5rem;
  font-weight: var(--fw-medium);
}

/* ── 客户品牌Logo墙 ── */
.logo-grid {
  display: flex; flex-wrap: wrap; justify-content: center; align-items: center;
  gap: 2.5rem 3.5rem; margin-top: 2rem;
}
.logo-item {
  display: flex; align-items: center; justify-content: center;
  padding: 0.5rem 1rem;
}
.logo-item img {
  max-height: 40px; max-width: 120px;
  width: auto; height: auto;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: 0.6;
  transition: all var(--transition-base);
}
.logo-item:hover img { filter: grayscale(0%); opacity: 1; }

/* ── 发展历程 ── */
.milestone-timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; margin-top: 2rem; }
.milestone-item {
  text-align: center; padding: 2rem 1rem;
  background: var(--color-white); border: var(--border-thin);
  border-radius: var(--radius-md); position: relative;
  transition: all var(--transition-base);
}
.milestone-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--color-primary-200); }
.milestone-year {
  font-family: var(--font-display);
  font-size: 2rem; font-weight: 800;
  color: var(--color-primary); line-height: 1;
}
.milestone-item h4 { font-size: 1rem; margin: 0.75rem 0 0.5rem; }
.milestone-item p { font-size: 0.8125rem; color: var(--color-text-muted); line-height: 1.5; }

/* ── 项目经验地图 ── */
.project-map {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}
.project-map-card {
  background: var(--color-white);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: all var(--transition-base);
}
.project-map-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-200);
}
.pm-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  background: var(--gradient-primary);
  color: #fff;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
}
.project-map-card h4 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}
.project-map-card p {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: 0.75rem;
}
.pm-clients {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}
.pm-clients span {
  display: inline-block;
  padding: 0.2rem 0.625rem;
  background: var(--color-primary-50);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: 0.6875rem;
  font-weight: var(--fw-medium);
}

/* ── 价值观 ── */
.values-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; margin-top: 2rem; }
.value-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 48px; height: 48px;
  background: var(--gradient-primary); color: #fff;
  border-radius: 50%;
  font-family: var(--font-display); font-size: 1.125rem; font-weight: 800;
  margin-bottom: 1.25rem;
}
.value-card {
  text-align: center; padding: 2.5rem 1.75rem;
  background: var(--color-white);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}
.value-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.value-card h3 { font-size: 1.25rem; margin-bottom: 0.75rem; }
.value-card p { font-size: 0.9375rem; color: var(--color-text-muted); line-height: 1.7; }

/* ── 团队 ── */
.team-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-top: 2rem; }
.team-card { text-align: center; padding: 2.5rem 2rem; }
.team-avatar { width: 120px; height: 120px; border-radius: 50%; overflow: hidden; margin: 0 auto 1.5rem; border: 3px solid var(--color-primary-100); }
.team-avatar img { width: 100%; height: 100%; object-fit: cover; }
.team-card h3 { margin-bottom: 0.25rem; font-size: 1.25rem; }
.team-title { font-weight: var(--fw-normal); color: var(--color-primary); font-size: 0.875rem; }
.team-role { color: var(--color-primary); font-weight: var(--fw-semibold); margin-bottom: 0.75rem; font-size: 0.9375rem; }
.team-bio { font-size: 0.9375rem; color: var(--color-text-muted); line-height: var(--lh-relaxed); }

/* ── 组织架构 ── */
.org-chart { margin-top: 2.5rem; text-align: center; }
.org-top {
  display: inline-block;
  padding: 1rem 3rem;
  background: var(--gradient-primary);
  color: #fff; border-radius: var(--radius-lg);
  font-weight: var(--fw-bold); font-size: 1.125rem;
  margin-bottom: 2.5rem;
  box-shadow: var(--shadow-md);
  position: relative;
}
.org-top::after {
  content: '';
  position: absolute; bottom: -12px; left: 50%; transform: translateX(-50%);
  width: 2px; height: 20px;
  background: var(--color-primary-300);
}
.org-branches {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 0.75rem;
  max-width: 640px; margin: 0 auto;
}
.org-dept {
  padding: 0.75rem 1.5rem;
  background: var(--color-white);
  border: var(--border-base);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem; color: var(--color-text-secondary);
  font-weight: var(--fw-medium);
  transition: all var(--transition-fast);
}
.org-dept:hover { border-color: var(--color-primary); color: var(--color-primary); background: var(--color-primary-50); }

/* ═══════════════════════════════════════════════════════════
   响应式
   ═══════════════════════════════════════════════════════════ */

@media (max-width: 1024px) {
  .milestone-timeline { grid-template-columns: repeat(2, 1fr); }
  .project-map { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .about-trust-strip { flex-wrap: wrap; gap: 1.5rem; padding: 2rem 1.5rem; }
  .trust-number { font-size: 2rem; }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: 1fr; }
  .milestone-timeline { grid-template-columns: 1fr 1fr; }
  .project-map { grid-template-columns: 1fr 1fr; gap: 1rem; }
  .logo-grid { gap: 1.5rem 2rem; }
}

@media (max-width: 640px) {
  .about-trust-strip { gap: 1rem; }
  .trust-number { font-size: 1.75rem; }
  .values-grid { grid-template-columns: 1fr; }
  .milestone-timeline { grid-template-columns: 1fr; }
  .project-map { grid-template-columns: 1fr; }
  .logo-grid { gap: 1rem 1.25rem; }
  .logo-item img { max-height: 32px; max-width: 100px; }
}