/* ============================================
   关于我们页面样式
   ============================================ */

.story-section {
  background: var(--color-cream);
}

.story-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.story-content .section-eyebrow,
.story-content .section-title { text-align: center; }

.story-lead {
  font-size: 22px;
  color: var(--color-text);
  line-height: 1.7;
  font-weight: 400;
  margin-bottom: 32px;
  font-family: var(--font-display);
  font-style: italic;
}

.story-content p {
  font-size: 16px;
  color: var(--color-text-light);
  line-height: 1.9;
  margin-bottom: 24px;
}

.story-divider {
  width: 60px;
  height: 1px;
  background: var(--color-accent);
  margin: 40px auto;
}

/* Values */
.values-section {
  background: var(--color-white);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

@media (max-width: 900px) {
  .values-grid { grid-template-columns: 1fr; }
}

.value-card {
  padding: 48px 40px;
  background: var(--color-cream);
  border-radius: var(--radius-md);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.value-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

.value-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
}

.value-card:hover::before { transform: scaleX(1); }

.value-num {
  font-family: var(--font-display);
  font-size: 14px;
  font-style: italic;
  color: var(--color-accent);
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.value-card h3 {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.value-card p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.8;
}

/* Timeline */
.timeline-section {
  background: linear-gradient(180deg, var(--color-cream) 0%, var(--color-cream-dark) 100%);
}

.timeline {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: var(--color-border);
  transform: translateX(-50%);
}

@media (max-width: 768px) {
  .timeline::before { left: 24px; }
}

.timeline-item {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 32px;
  align-items: center;
  margin-bottom: 60px;
  position: relative;
}

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

@media (max-width: 768px) {
  .timeline-item {
    grid-template-columns: 48px 1fr;
    gap: 20px;
  }
}

.timeline-dot {
  width: 16px;
  height: 16px;
  background: var(--color-accent);
  border: 4px solid var(--color-cream);
  border-radius: 50%;
  z-index: 1;
  box-shadow: 0 0 0 1px var(--color-accent);
}

@media (max-width: 768px) {
  .timeline-dot {
    grid-column: 1;
    margin: 20px 0 0 16px;
  }
}

.timeline-year {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 600;
  color: var(--color-primary);
  font-style: italic;
  letter-spacing: -2px;
  text-align: right;
}

.timeline-item:nth-child(even) .timeline-year {
  text-align: left;
  order: 3;
}

@media (max-width: 768px) {
  .timeline-year {
    text-align: left !important;
    grid-column: 2;
    order: initial !important;
    font-size: 32px;
  }
}

.timeline-content {
  background: var(--color-white);
  padding: 28px 32px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.timeline-content h4 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.timeline-content p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* Stats */
.stats-section {
  background: var(--color-primary);
  color: var(--color-cream);
  padding: 100px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

@media (max-width: 768px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

.stat-item {
  padding: 20px;
}

.stat-num {
  font-family: var(--font-display);
  font-size: clamp(48px, 6vw, 72px);
  font-weight: 600;
  line-height: 1;
  color: var(--color-accent-light);
  letter-spacing: -2px;
  margin-bottom: 12px;
}

.stat-label {
  font-size: 14px;
  color: rgba(248, 243, 233, 0.7);
  letter-spacing: 1px;
}

/* Certifications */
.cert-section {
  background: var(--color-white);
}

.certs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

@media (max-width: 900px) {
  .certs-grid { grid-template-columns: repeat(2, 1fr); }
}

.cert-card {
  text-align: center;
  padding: 32px 20px;
  background: var(--color-cream);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.cert-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
}

.cert-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  background: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  box-shadow: var(--shadow-sm);
}

.cert-card h4 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.cert-card p {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.6;
}