/* ===========================================
   关于页 — Warm Aura Design System
   =========================================== */

/* ── Section 1: Hero — Full-width ── */
.wa-hero {
  position: relative;
  padding: calc(68px + var(--space-3xl)) 0 var(--space-2xl);
  background: var(--bg-body);
  overflow: hidden;
}

.wa-hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 700px 400px at 30% 40%, rgba(196,84,75,0.06), transparent 70%),
    radial-gradient(ellipse 500px 300px at 80% 60%, rgba(212,162,76,0.05), transparent 60%);
  pointer-events: none;
}

.wa-hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  position: relative;
}

.wa-hero-content {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-xl);
}

.wa-hero-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: var(--space-sm);
}

.wa-hero-title {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-md);
}

.wa-hero-desc {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 520px;
  margin: 0 auto;
}

.wa-hero-stats {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
}

.wa-hero-stat-card {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg) var(--space-xl);
  text-align: center;
  flex: 0 1 260px;
  transition: all 0.3s ease;
}

.wa-hero-stat-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.wa-hs-num {
  display: block;
  font-size: 38px;
  font-weight: 800;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  margin-bottom: 4px;
}

.wa-hs-lbl {
  font-size: 14px;
  color: var(--text-tertiary);
  font-weight: 500;
}

/* ── Section 2: Profile — Asymmetric ── */
.wa-profile {
  padding: var(--space-2xl) 0;
  background: var(--bg-soft);
}

.wa-profile-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.wa-profile-head {
  margin-bottom: var(--space-xl);
}

.wa-profile-body {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: var(--space-md);
  align-items: stretch;
}

.wa-profile-card {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  align-content: start;
  transition: all 0.3s ease;
}

.wa-profile-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.wa-pc-item {
  text-align: center;
  padding: var(--space-sm) 0;
}

.wa-pc-num {
  display: block;
  font-size: 28px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.wa-pc-lbl {
  display: block;
  font-size: 13px;
  color: var(--text-tertiary);
  margin-top: 2px;
  font-weight: 500;
}

.wa-profile-text {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all 0.3s ease;
}

.wa-profile-text:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.wa-profile-text p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: var(--space-md);
}

.wa-profile-text p:last-child {
  margin-bottom: 0;
}

/* ── Section 3: About Features — 6-card grid ── */
.wa-about-features {
  padding: var(--space-2xl) 0;
  background: var(--bg-soft);
}

.wa-features-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  text-align: center;
}

.wa-features-inner .section-eyebrow {
  justify-content: center;
  margin-bottom: 12px;
}

.wa-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.wa-feat-card {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: left;
  transition: all 0.3s ease;
}

.wa-feat-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.wa-fc-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-gradient);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  font-size: 20px;
  color: #fff;
}

.wa-feat-card h3 {
  font-size: 17px;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
  letter-spacing: -0.01em;
}

.wa-feat-card p {
  font-size: 14px;
  color: var(--text-tertiary);
  line-height: 1.8;
}

/* ── Section 4: Values — Alternating height cards ── */
.wa-values {
  padding: var(--space-2xl) 0;
  background: var(--bg-body);
}

.wa-values-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.wa-values-head {
  margin-bottom: var(--space-xl);
}

.wa-values-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  align-items: start;
}

.wa-val-card {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  position: relative;
  transition: all 0.3s ease;
}

.wa-val-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.wa-val-card--tall {
  padding: var(--space-xl) var(--space-lg);
}

.wa-val-num {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  font-size: 40px;
  font-weight: 800;
  color: var(--border);
  line-height: 1;
  letter-spacing: -0.04em;
}

.wa-val-card--tall .wa-val-num {
  top: var(--space-xl);
  right: var(--space-lg);
}

.wa-val-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-gradient);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  font-size: 20px;
  color: #fff;
}

.wa-val-card h3 {
  font-size: 19px;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
  letter-spacing: -0.01em;
}

.wa-val-card p {
  font-size: 14px;
  color: var(--text-tertiary);
  line-height: 1.8;
  max-width: 320px;
}

/* ── Section 5: Timeline — Vertical ── */
.wa-timeline {
  padding: var(--space-2xl) 0;
  background: var(--bg-soft);
}

.wa-timeline-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.wa-timeline-head {
  margin-bottom: var(--space-xl);
}

.wa-timeline-track {
  position: relative;
  padding-left: 40px;
  max-width: 700px;
  margin: 0 auto;
}

.wa-timeline-track::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: var(--border);
}

.wa-tl-item {
  display: flex;
  gap: var(--space-md);
  position: relative;
  padding-bottom: var(--space-lg);
}

.wa-tl-item:last-child {
  padding-bottom: 0;
}

.wa-tl-marker {
  position: relative;
  flex-shrink: 0;
}

.wa-tl-dot {
  display: block;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: var(--bg-body);
  border: 3px solid var(--primary);
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  transition: all 0.3s ease;
}

.wa-tl-item:hover .wa-tl-dot {
  background: var(--primary-gradient);
}

.wa-tl-line {
  display: block;
  width: 2px;
  height: calc(100% - 32px);
  background: var(--border);
  margin: 0 auto;
  position: absolute;
  top: 32px;
  left: 50%;
  transform: translateX(-50%);
}

.wa-tl-item:last-child .wa-tl-line {
  display: none;
}

.wa-tl-card {
  flex: 1;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all 0.3s ease;
  margin-left: var(--space-sm);
}

.wa-tl-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
  transform: translateX(4px);
}

.wa-tl-year {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 2px 10px;
  border: 1px solid var(--primary);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-sm);
  background: var(--primary-light);
}

.wa-tl-title {
  font-size: 18px;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.wa-tl-desc {
  font-size: 14px;
  color: var(--text-tertiary);
  line-height: 1.8;
}

/* ── Section 6: Contact — Single column list ── */
.wa-contact {
  padding: var(--space-2xl) 0;
  background: var(--bg-body);
}

.wa-contact-inner {
  max-width: 700px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.wa-contact-head {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.wa-contact-sub {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 420px;
  margin: 0 auto;
}

.wa-contact-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.wa-contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  transition: all 0.3s ease;
}

.wa-contact-item:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
  transform: translateX(4px);
}

.wa-ci-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-gradient);
  border-radius: var(--radius-full);
  font-size: 18px;
  color: #fff;
  flex-shrink: 0;
}

.wa-ci-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.wa-ci-lbl {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.wa-ci-val {
  font-size: 15px;
  color: var(--text-primary);
  font-weight: 500;
  word-break: break-all;
}

.wa-ci-val a {
  color: var(--text-primary);
  transition: color 0.2s;
}

.wa-ci-val a:hover {
  color: var(--primary);
}

/* ── Section 7: CTA — Full-width banner ── */
.wa-cta {
  padding: 0 0 var(--space-2xl);
  background: var(--bg-soft);
}

.wa-cta-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-md);
  text-align: center;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.wa-cta-inner::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 600px 200px at 50% 50%, rgba(196,84,75,0.04), transparent 70%);
  pointer-events: none;
}

.wa-cta-inner h2 {
  font-size: clamp(26px, 3.5vw, 36px);
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
  position: relative;
}

.wa-cta-inner p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  line-height: 1.7;
  position: relative;
}

.wa-cta-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  position: relative;
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .wa-hero {
    padding: calc(68px + var(--space-2xl)) 0 var(--space-xl);
  }

  .wa-hero-stats {
    flex-direction: row;
  }

  .wa-hero-stat-card {
    flex: 1;
  }

  .wa-profile-body {
    grid-template-columns: 1fr;
  }

  .wa-profile-card {
    grid-template-columns: repeat(4, 1fr);
  }

  .wa-values-grid {
    gap: var(--space-sm);
  }

  .wa-features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .wa-timeline-track {
    max-width: 100%;
    padding-left: 36px;
  }

  .wa-contact-inner {
    max-width: 100%;
  }
}

@media (max-width: 600px) {
  .wa-hero {
    padding: calc(68px + var(--space-xl)) 0 var(--space-lg);
  }

  .wa-hero-stats {
    flex-direction: column;
    align-items: center;
  }

  .wa-hero-stat-card {
    width: 100%;
    max-width: 320px;
  }

  .wa-hs-num {
    font-size: 32px;
  }

  .wa-profile-card {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
  }

  .wa-pc-num {
    font-size: 22px;
  }

  .wa-profile-text {
    padding: var(--space-lg);
  }

  .wa-values-grid {
    grid-template-columns: 1fr;
  }

  .wa-features-grid {
    grid-template-columns: 1fr;
  }

  .wa-val-card--tall {
    padding: var(--space-lg);
  }

  .wa-timeline-track {
    padding-left: 32px;
  }

  .wa-tl-card {
    padding: var(--space-md);
  }

  .wa-tl-dot {
    width: 28px;
    height: 28px;
  }

  .wa-contact-list {
    gap: var(--space-xs);
  }

  .wa-contact-item {
    padding: var(--space-sm) var(--space-md);
  }

  .wa-ci-icon {
    width: 40px;
    height: 40px;
    font-size: 15px;
  }

  .wa-cta-inner {
    padding: var(--space-xl) var(--space-md);
  }

  .wa-cta-actions {
    flex-direction: column;
    align-items: center;
  }

  .wa-val-num {
    font-size: 32px;
  }
}