/* ===== 文件：about.css ===== */
.about-page {
  padding-top: 64px;
}

.about-banner {
  background: linear-gradient(135deg, #f7f8fa 0%, #e8f3ff 100%);
  padding: 80px 20px;
  text-align: center;
}

.about-banner h1 {
  font-size: 36px;
  font-weight: 700;
  color: #1d2129;
  margin-bottom: 16px;
}

.about-banner .subtitle {
  font-size: 18px;
  color: #165DFF;
  font-weight: 500;
  margin-bottom: 12px;
}

.about-banner .description {
  font-size: 15px;
  color: #86909c;
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.8;
}

.section {
  padding: 60px 20px;
}

.section-title {
  font-size: 28px;
  font-weight: 700;
  color: #1d2129;
  text-align: center;
  margin-bottom: 48px;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, #165DFF, #4080ff);
  margin: 16px auto 0;
  border-radius: 2px;
}

.company-intro {
  max-width: 900px;
  margin: 0 auto;
  background: #fff;
  border-radius: 12px;
  padding: 48px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.company-intro p {
  font-size: 15px;
  line-height: 2;
  color: #4e5969;
  text-align: justify;
  margin-bottom: 20px;
}

.advantages-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.advantage-card {
  background: #fff;
  border-radius: 12px;
  padding: 32px 24px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  text-align: center;
}

.advantage-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(22, 93, 255, 0.15);
}

.advantage-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, #f0f5ff 0%, #e8f3ff 100%);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.advantage-icon svg {
  width: 32px;
  height: 32px;
  fill: #165DFF;
}

.advantage-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: #1d2129;
  margin-bottom: 12px;
}

.advantage-card p {
  font-size: 14px;
  color: #86909c;
  line-height: 1.8;
}

.values-section {
  background: #f7f8fa;
}

.values-container {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.values-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: #165DFF;
  margin-top: 28px;
  margin-bottom: 10px;
}

.values-content h3:first-child {
  margin-top: 0;
}

.values-content p {
  font-size: 15px;
  color: #4e5969;
  line-height: 1.8;
  margin-bottom: 8px;
}

.values-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.values-graphic {
  width: 320px;
  height: 320px;
  background: linear-gradient(135deg, #165DFF 0%, #4080ff 100%);
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.values-graphic::before {
  content: '';
  position: absolute;
  width: 200px;
  height: 200px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  top: -40px;
  right: -40px;
}

.values-graphic::after {
  content: '';
  position: absolute;
  width: 150px;
  height: 150px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
  bottom: -30px;
  left: -30px;
}

.cta-section {
  background: linear-gradient(135deg, #165DFF 0%, #4080ff 100%);
  padding: 80px 20px;
  text-align: center;
  color: #fff;
}

.cta-section h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-section .subtitle {
  font-size: 17px;
  opacity: 0.95;
  margin-bottom: 32px;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-buttons .btn {
  min-width: 180px;
}

.cta-buttons .btn-primary {
  background: #fff;
  color: #165DFF;
}

.cta-buttons .btn-primary:hover {
  background: #f0f5ff;
  transform: translateY(-2px);
}

.cta-buttons .btn-secondary {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.6);
}

.cta-buttons .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
  transform: translateY(-2px);
}

@media (max-width: 1024px) {
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .values-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .values-visual {
    order: -1;
  }
}

@media (max-width: 768px) {
  .about-banner {
    padding: 50px 20px;
  }
  
  .about-banner h1 {
    font-size: 26px;
  }
  
  .about-banner .subtitle {
    font-size: 16px;
  }
  
  .section {
    padding: 40px 20px;
  }
  
  .section-title {
    font-size: 22px;
    margin-bottom: 32px;
  }
  
  .company-intro {
    padding: 28px 20px;
  }
  
  .advantages-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .cta-section {
    padding: 50px 20px;
  }
  
  .cta-section h2 {
    font-size: 24px;
  }
  
  .values-graphic {
    width: 240px;
    height: 240px;
  }
}