/* ============================================================
   about.css — 关于我们页专属样式
   ============================================================ */

/* ============================================================
   About Page — Hero Section
   ============================================================ */
.about-hero {
  position: relative;
  padding: 5rem 2rem 4rem;
  overflow: hidden;
}
.about-hero-inner {
  max-width: 80rem;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
  align-items: center;
}
@media (min-width: 1024px) {
  .about-hero-inner { grid-template-columns: 1fr 1fr; }
}
.about-hero-badge {
  display: inline-block;
  padding: 0.375rem 1rem;
  border-radius: var(--radius-full);
  background: rgba(197,160,89,0.1);
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
}
.about-hero h1 {
  font-family: var(--font-headline);
  font-weight: 800;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  color: var(--on-surface);
  line-height: 1.1;
  letter-spacing: -0.025em;
  margin-bottom: 2rem;
}
.about-hero h1 .highlight { color: var(--primary); }
.about-hero-desc {
  font-size: 1.125rem;
  color: var(--on-surface-variant);
  line-height: 1.7;
  max-width: 36rem;
  margin-bottom: 2.5rem;
}
.about-hero-img {
  position: relative;
}
.about-hero-img .img-wrap {
  aspect-ratio: 4/3;
  border-radius: var(--radius-4xl);
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25);
}
.about-hero-img .img-wrap img { width: 100%; height: 100%; object-fit: cover; }
.about-hero-stat {
  position: absolute;
  bottom: -2rem;
  left: -2rem;
  background: var(--surface-container-lowest);
  padding: 2rem;
  border-radius: var(--radius-2xl);
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1);
  border-left: 4px solid var(--primary);
  display: none;
}
@media (min-width: 768px) { .about-hero-stat { display: block; } }
.about-hero-stat .stat-num {
  font-family: var(--font-headline);
  font-weight: 800;
  font-size: 2.5rem;
  color: var(--primary);
  margin-bottom: 0.25rem;
}
.about-hero-stat .stat-label {
  font-size: 0.875rem;
  color: var(--on-surface-variant);
  font-weight: 500;
  max-width: 14rem;
}
.about-hero-bg {
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: var(--surface-container-low);
  border-radius: 0 0 0 5rem;
  z-index: -1;
}

/* ============================================================
   Introduction Section
   ============================================================ */
.intro-section {
  padding: 6rem 2rem;
  background: #ffffff;
  overflow: hidden;
}
.intro-inner {
  max-width: 80rem;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}
@media (min-width: 1024px) { .intro-inner { grid-template-columns: 5fr 7fr; gap: 5rem; } }
.intro-heading {
  font-family: var(--font-headline);
  font-weight: 800;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  color: var(--on-surface);
  margin-bottom: 2rem;
  position: relative;
  display: inline-block;
}
.intro-heading::after {
  content: '';
  position: absolute;
  bottom: -0.75rem;
  left: 0;
  width: 5rem;
  height: 0.375rem;
  background: var(--primary);
  border-radius: var(--radius-full);
}
.intro-texts { margin-top: 1.5rem; display: flex; flex-direction: column; gap: 1.5rem; }
.intro-texts p {
  font-size: 1.0625rem;
  color: var(--on-surface-variant);
  line-height: 1.75;
  font-family: var(--font-headline);
}
.intro-texts p.lead {
  font-weight: 600;
  color: var(--on-surface);
}
.intro-quote {
  background: var(--surface-container-low);
  padding: 2.5rem;
  border-radius: var(--radius-4xl);
  border-left: 0.5rem solid var(--primary);
  margin-bottom: 2rem;
}
.intro-quote p {
  font-size: 1.125rem;
  color: var(--on-surface);
  line-height: 1.8;
  font-style: italic;
  font-weight: 500;
}
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
@media (min-width: 640px) { .stats-grid { grid-template-columns: repeat(4, 1fr); } }
.stat-card {
  text-align: center;
  padding: 1rem;
  background: var(--surface-container-highest);
  border-radius: var(--radius-2xl);
}
.stat-card .stat-val {
  font-family: var(--font-headline);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--primary);
  margin-bottom: 0.25rem;
}
.stat-card .stat-desc {
  font-size: 0.6875rem;
  color: var(--on-surface-variant);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ============================================================
   Mission & Vision Bento Grid
   ============================================================ */
.mission-section {
  padding: 6rem 2rem;
  background: var(--surface-container);
}
.mission-inner {
  max-width: 80rem;
  margin: 0 auto;
}
.section-header.left-align { text-align: left; }
.section-header.left-align p { margin: 0; }

.bento-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 768px) { .bento-grid { grid-template-columns: repeat(3, 1fr); } }

.bento-card {
  background: var(--surface-container-lowest);
  padding: 2.5rem;
  border-radius: var(--radius-3xl);
  transition: box-shadow 0.3s;
}
.bento-card:hover { box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1); }
.bento-card.wide { grid-column: 1 / -1; }
@media (min-width: 768px) { .bento-card.wide { grid-column: span 2; } }
.bento-card.primary-bg {
  background: var(--primary);
  color: var(--on-primary);
}
.bento-card.border-accent {
  border-left: 0.5rem solid var(--primary);
  background: var(--surface-container-high);
}
.bento-icon {
  width: 4rem;
  height: 4rem;
  border-radius: var(--radius-2xl);
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2rem;
  box-shadow: 0 10px 15px -3px rgba(197,160,89,0.3);
}
.bento-icon .material-symbols-outlined { color: #ffffff; font-size: 1.875rem; }
.bento-card h3 {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}
.bento-card.primary-bg h3 { color: #fff; }
.bento-card p {
  color: var(--on-surface-variant);
  line-height: 1.7;
  font-size: 1.0625rem;
}
.bento-card.primary-bg p { color: rgba(255,255,255,0.85); }
.bento-card-footer {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.2);
}
.bento-card-footer p {
  color: rgba(255,255,255,0.9);
  font-style: italic;
  font-family: var(--font-headline);
}
.values-list { display: flex; flex-direction: column; gap: 1rem; margin-top: 1rem; }
.value-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.value-item .material-symbols-outlined {
  color: var(--primary);
  font-size: 1.25rem;
  font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}
.value-item span:last-child { font-weight: 500; color: var(--on-surface); }
.bento-img-wrap {
  position: relative;
  border-radius: var(--radius-3xl);
  overflow: hidden;
  min-height: 300px;
}
.bento-img-wrap img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.bento-img-wrap .img-caption {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.6), transparent);
  display: flex;
  align-items: flex-end;
  padding: 2.5rem;
}
.bento-img-wrap .img-caption p {
  color: #fff;
  font-size: 1.125rem;
  font-weight: 500;
}
@media (min-width: 768px) {
  .bento-img-wrap.wide {
    grid-column: span 2;
    min-height: 380px;
  }
}

/* ============================================================
   Expert Team Section
   ============================================================ */
.team-section {
  padding: 6rem 2rem;
  background: var(--surface);
}
.team-inner {
  max-width: 80rem;
  margin: 0 auto;
}
.team-header {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-bottom: 4rem;
}
@media (min-width: 768px) {
  .team-header {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-end;
  }
}
.team-header-text { max-width: 40rem; }
.team-header-text h2 {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  margin-bottom: 1rem;
}
.team-header-text p { color: var(--on-surface-variant); font-size: 1.0625rem; line-height: 1.7; }
.team-badges { display: flex; gap: 1rem; flex-wrap: wrap; }
.team-badge-tag {
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  background: var(--surface-container-high);
  color: var(--on-surface);
  font-weight: 600;
  border: 1px solid rgba(197,160,89,0.2);
  font-size: 0.9375rem;
}
.team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
@media (min-width: 640px)  { .team-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .team-grid { grid-template-columns: repeat(4, 1fr); } }
.team-card { }
.team-card .portrait {
  aspect-ratio: 3/4;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  margin-bottom: 1.5rem;
  background: var(--surface-container-low);
  border-bottom: 4px solid transparent;
  transition: border-color 0.3s;
}
.team-card:hover .portrait { border-color: var(--primary); }
.team-card .portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1);
  transition: filter 0.5s;
}
.team-card:hover .portrait img { filter: grayscale(0); }
.team-card h4 {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 0.25rem;
}
.team-card .role { color: var(--primary); font-weight: 600; margin-bottom: 0.75rem; }
.team-card p { color: var(--on-surface-variant); font-size: 0.875rem; line-height: 1.6; }

/* ============================================================
   Honors & Certifications
   ============================================================ */
.honors-section {
  padding: 6rem 2rem;
  background: var(--surface-container-low);
}
.honors-inner {
  max-width: 80rem;
  margin: 0 auto;
}
.honors-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  margin-top: 4rem;
}
@media (min-width: 768px) { .honors-grid { grid-template-columns: repeat(4, 1fr); } }
.honor-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  transition: transform 0.2s;
}
.honor-item:hover { transform: scale(1.05); }
.honor-item .material-symbols-outlined {
  font-size: 3.75rem;
  color: var(--primary);
  font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 48;
}
.honor-item p {
  font-weight: 700;
  text-align: center;
  color: var(--on-surface);
}

/* ============================================================
   CTA Section
   ============================================================ */
.cta-section {
  padding: 6rem 2rem;
  background: var(--surface);
}
.cta-inner {
  max-width: 80rem;
  margin: 0 auto;
}
.cta-card {
  background: var(--primary);
  border-radius: var(--radius-4xl);
  padding: 4rem;
  overflow: hidden;
  position: relative;
  box-shadow: 0 25px 50px -12px rgba(197,160,89,0.4);
}
@media (min-width: 1024px) { .cta-card { padding: 6rem; } }
.cta-card-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
  position: relative;
  z-index: 1;
}
@media (min-width: 1024px) { .cta-card-inner { grid-template-columns: 1fr 1fr; } }
.cta-card h2 {
  font-family: var(--font-headline);
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 3rem);
  color: #fff;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}
.cta-card > .cta-card-inner > div > p {
  color: rgba(255,255,255,0.8);
  font-size: 1.125rem;
  margin-bottom: 2.5rem;
}
.cta-actions { display: flex; flex-wrap: wrap; gap: 1rem; }
.btn-cta-primary {
  background: #fff;
  color: var(--primary);
  padding: 1rem 2.5rem;
  border-radius: var(--radius-xl);
  font-weight: 700;
  font-size: 1.0625rem;
  box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
  transition: background 0.2s;
}
.btn-cta-primary:hover { background: var(--surface-container-lowest); }
.btn-cta-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.8);
  padding: 1rem 2.5rem;
  border-radius: var(--radius-xl);
  font-weight: 700;
  font-size: 1.0625rem;
  transition: background 0.2s;
}
.btn-cta-outline:hover { background: rgba(255,255,255,0.1); }
.cta-info-card {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-3xl);
  padding: 2rem;
  display: none;
}
@media (min-width: 1024px) { .cta-info-card { display: block; } }
.cta-info-card .info-label {
  color: rgba(255,255,255,0.8);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}
.cta-info-card .info-phone {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 2.5rem;
  color: #fff;
  letter-spacing: -0.025em;
  margin-bottom: 2rem;
}
.cta-info-card .info-addr {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: rgba(255,255,255,0.7);
}
.cta-info-card .info-addr .material-symbols-outlined { color: rgba(255,255,255,0.9); }
.cta-deco {
  position: absolute;
  top: 0;
  right: 0;
  width: 24rem;
  height: 24rem;
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-full);
  transform: translate(6rem, -6rem);
}