/* ===========================================
   关于页 — Bento Design System
   =========================================== */

/* ── Section 1: Page Header — Dual-column Bento ── */
.mf-about-hero {
  padding: calc(68px + var(--space-3xl)) 0 var(--space-xl);
  background: var(--bg-body);
}

.mf-hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-md);
  align-items: stretch;
}

.mf-hero-stats-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.mf-hero-stat {
  text-align: center;
  padding: var(--space-lg) var(--space-md);
}

.mf-stat-digit {
  font-size: 36px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 4px;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.mf-stat-label {
  font-size: 13px;
  color: var(--text-tertiary);
  font-weight: 500;
}

.mf-hero-card {
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.mf-hero-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-start);
  margin-bottom: var(--space-sm);
}

.mf-hero-title {
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}

.mf-hero-sub {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 480px;
}

/* ── Section 2: Company Profile — Bento two-column ── */
.mf-about-intro {
  padding: var(--space-2xl) 0;
  background: var(--bg-soft);
}

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

.mf-intro-head {
  margin-bottom: var(--space-xl);
}

.mf-intro-body {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-md);
  align-items: stretch;
}

.mf-intro-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  padding: var(--space-lg);
  align-content: start;
}

.mf-intro-stat {
  text-align: center;
}

.mf-is-num {
  display: block;
  font-size: 26px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.mf-is-lbl {
  display: block;
  font-size: 12px;
  color: var(--text-tertiary);
  margin-top: 2px;
  font-weight: 500;
}

.mf-intro-text {
  padding: var(--space-xl);
}

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

.mf-intro-text p:last-child {
  margin-bottom: 0;
}

/* ── Section 3: Core Values — 2x2 Bento ── */
.mf-about-values {
  padding: var(--space-2xl) 0;
  background: var(--bg-body);
}

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

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

.mf-values-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.mf-val-card {
  padding: var(--space-lg);
  position: relative;
  border-top: 3px solid transparent;
  border-image: var(--accent-gradient);
  border-image-slice: 1;
}

.mf-val-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-soft);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  font-size: 18px;
  color: var(--accent-start);
}

.mf-val-card h3 {
  font-size: 18px;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

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

/* ── Section 4: Timeline — Horizontal Bento cards ── */
.mf-about-path {
  padding: var(--space-2xl) 0;
  background: var(--bg-soft);
}

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

.mf-path-head {
  margin-bottom: var(--space-xl);
}

.mf-path-row {
  display: flex;
  gap: var(--space-md);
  overflow-x: auto;
  padding-bottom: var(--space-xs);
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.mf-path-card {
  flex: 0 0 220px;
  padding: var(--space-lg) var(--space-md);
  scroll-snap-align: start;
}

.mf-path-year {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent-start);
  letter-spacing: 0.04em;
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
}

.mf-path-title {
  font-size: 17px;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.mf-path-desc {
  font-size: 13px;
  color: var(--text-tertiary);
  line-height: 1.7;
}

/* ── Section 5: Contact — 2x2 Bento cards ── */
.mf-about-contact {
  padding: var(--space-2xl) 0;
  background: var(--bg-body);
}

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

.mf-contact-head {
  margin-bottom: var(--space-xl);
}

.mf-contact-sub {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 480px;
}

.mf-contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.mf-contact-card {
  padding: var(--space-lg);
  text-align: center;
}

.mf-c-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
  margin: 0 auto var(--space-sm);
  font-size: 18px;
  color: #fff;
}

.mf-c-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.mf-c-value {
  font-size: 15px;
  color: var(--text-primary);
  font-weight: 500;
  word-break: break-all;
}

.mf-c-value a {
  color: var(--text-primary);
  transition: color 0.2s;
}

.mf-c-value a:hover {
  color: var(--accent-start);
}

/* ── Section 6: CTA ── */
.mf-about-cta {
  padding: 0 0 var(--space-2xl);
  background: var(--bg-soft);
}

.mf-cta-card {
  max-width: 700px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-2xl);
  text-align: center;
  background: linear-gradient(135deg, #fff, #f0f4ff);
  border: 1px solid var(--border);
}

.mf-cta-card h2 {
  font-size: clamp(24px, 3vw, 34px);
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.mf-cta-card p {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  line-height: 1.7;
}

.mf-cta-btns {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .mf-hero-inner {
    grid-template-columns: 1fr;
  }

  .mf-hero-stats-col {
    flex-direction: row;
  }

  .mf-hero-stat {
    flex: 1;
  }

  .mf-intro-body {
    grid-template-columns: 1fr;
  }

  .mf-intro-stats {
    grid-template-columns: repeat(4, 1fr);
  }

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

  .mf-path-card {
    flex: 0 0 200px;
  }

  .mf-contact-grid {
    gap: var(--space-sm);
  }
}

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

  .mf-hero-stats-col {
    flex-direction: column;
  }

  .mf-hero-card {
    padding: var(--space-lg);
  }

  .mf-intro-stats {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
  }

  .mf-intro-text {
    padding: var(--space-lg);
  }

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

  .mf-path-row {
    flex-direction: column;
    overflow-x: visible;
  }

  .mf-path-card {
    flex: none;
  }

  .mf-contact-grid {
    grid-template-columns: 1fr;
  }

  .mf-cta-card {
    padding: var(--space-lg);
    max-width: 100%;
    margin: 0 var(--space-md);
  }

  .mf-cta-btns {
    flex-direction: column;
    align-items: center;
  }
}