/* 关于我们和分红机制模块优化样式 */
:root {
  --about-primary: #ff4757;
  --about-secondary: #3498db;
  --about-accent: #2ed573;
  --about-warning: #ffa502;
  --about-light: #f8f9fa;
  --about-dark: #333;
  --about-text: #666;
}

/* 关于我们模块优化 */
.about-section {
  padding: 100px 0;
  background: linear-gradient(135deg, #f8f9fa 0%, #e8f4f8 100%);
  position: relative;
  overflow: hidden;
}

.about-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="10" cy="10" r="1" fill="rgba(255,71,87,0.05)"/><circle cx="90" cy="90" r="0.8" fill="rgba(255,71,87,0.05)"/><circle cx="30" cy="70" r="1.2" fill="rgba(255,71,87,0.05)"/><circle cx="70" cy="30" r="0.8" fill="rgba(255,71,87,0.05)"/></svg>');
  opacity: 0.3;
}

.about-header {
  text-align: center;
  margin-bottom: 60px;
}

.about-title {
  font-size: 3.2rem;
  margin-bottom: 20px;
  color: var(--about-dark);
  font-weight: 800;
  letter-spacing: -0.5px;
  position: relative;
  display: inline-block;
}

.about-title::after {
  content: '';
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(135deg, var(--about-primary), var(--about-secondary));
  border-radius: 2px;
}

.about-subtitle {
  font-size: 1.3rem;
  color: var(--about-text);
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.6;
}

/* 关于我们内容卡片 */
.about-content-card {
  background: white;
  padding: 50px;
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
  margin-bottom: 50px;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.about-content-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(135deg, var(--about-primary), var(--about-secondary));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

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

.about-description {
  font-size: 1.2rem;
  line-height: 1.8;
  color: var(--about-text);
  text-align: center;
  margin-bottom: 40px;
}

/* 社交赋能运营模式 */
.social-empowerment {
  text-align: center;
  margin: 40px 0;
}

.social-empowerment h3 {
  font-size: 2rem;
  margin-bottom: 30px;
  color: var(--about-primary);
  font-weight: 700;
}

.business-model-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin: 40px 0;
}

.business-model-card {
  background: white;
  padding: 35px 30px;
  border-radius: 15px;
  text-align: center;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.business-model-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(135deg, var(--about-primary), var(--about-secondary));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

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

.business-model-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.model-number {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--about-primary), var(--about-secondary));
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto 20px;
  position: relative;
}

.model-number::after {
  content: '';
  position: absolute;
  inset: -4px;
  background: linear-gradient(135deg, var(--about-primary), var(--about-secondary));
  border-radius: 50%;
  opacity: 0.3;
  animation: pulse 2s ease-in-out infinite;
}

.business-model-card h4 {
  font-size: 1.4rem;
  margin-bottom: 15px;
  color: var(--about-dark);
  font-weight: 700;
}

.business-model-card p {
  color: var(--about-text);
  line-height: 1.7;
  margin: 0;
  font-size: 1.05rem;
}

/* 核心价值主张卡片 */
.value-proposition-card {
  background: linear-gradient(135deg, var(--about-secondary), var(--about-primary));
  padding: 40px;
  border-radius: 20px;
  color: white;
  box-shadow: 0 20px 60px rgba(52, 152, 219, 0.3);
  margin: 50px 0;
  position: relative;
  overflow: hidden;
}

.value-proposition-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="10" cy="10" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="90" cy="90" r="0.5" fill="rgba(255,255,255,0.1)"/><circle cx="30" cy="70" r="0.8" fill="rgba(255,255,255,0.1)"/><circle cx="70" cy="30" r="0.5" fill="rgba(255,255,255,0.1)"/></svg>');
  animation: float 15s ease-in-out infinite;
}

.value-proposition-content {
  position: relative;
  z-index: 2;
  text-align: center;
}

.value-proposition-content h4 {
  font-size: 1.8rem;
  margin-bottom: 25px;
  font-weight: 700;
}

.value-proposition-item {
  margin: 15px 0;
  font-size: 1.1rem;
  opacity: 0.95;
}

.value-proposition-item strong {
  color: #ffdd59;
  font-weight: 600;
}

/* 分红机制模块优化 */
.dividend-mechanism-section {
  padding: 80px 0;
  background: linear-gradient(135deg, #f8f9fa 0%, #e8f4f8 100%);
}

.dividend-header {
  text-align: center;
  margin-bottom: 50px;
}

.dividend-title {
  font-size: 2.8rem;
  margin-bottom: 20px;
  color: var(--about-primary);
  font-weight: 800;
  letter-spacing: -0.5px;
}

.dividend-subtitle {
  font-size: 1.2rem;
  color: var(--about-text);
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.6;
}

/* 分红阶段卡片 */
.dividend-stages {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 25px;
  margin: 40px 0;
}

.dividend-stage-card {
  background: white;
  padding: 30px;
  border-radius: 15px;
  text-align: center;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.dividend-stage-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(135deg, var(--about-primary), var(--about-secondary));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

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

.dividend-stage-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 50px rgba(0, 0, 0, 0.15);
}

.stage-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--about-primary), var(--about-secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  color: white;
  font-size: 2rem;
  position: relative;
}

.stage-icon::after {
  content: '';
  position: absolute;
  inset: -6px;
  background: linear-gradient(135deg, var(--about-primary), var(--about-secondary));
  border-radius: 50%;
  opacity: 0.2;
  animation: pulse 2s ease-in-out infinite;
}

.dividend-stage-card h4 {
  font-size: 1.3rem;
  margin-bottom: 15px;
  color: var(--about-dark);
  font-weight: 700;
}

.dividend-stage-card p {
  color: var(--about-text);
  line-height: 1.6;
  margin: 0;
  font-size: 1rem;
}

/* 分红流程图 */
.dividend-flow {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 15px;
  margin: 30px 0;
  flex-wrap: wrap;
}

.flow-arrow {
  font-size: 1.5rem;
  color: var(--about-primary);
  animation: bounce 2s ease-in-out infinite;
}

/* 分红规则详情 */
.dividend-rules {
  background: white;
  padding: 30px;
  border-radius: 15px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  margin-top: 40px;
}

.rules-header {
  text-align: center;
  margin-bottom: 25px;
}

.rules-header h4 {
  font-size: 1.6rem;
  color: var(--about-dark);
  margin-bottom: 10px;
}

.rules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.rule-item {
  padding: 20px;
  background: #f8f9fa;
  border-radius: 10px;
  border-left: 4px solid var(--about-primary);
}

.rule-item h5 {
  color: var(--about-primary);
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.rule-item p {
  color: var(--about-text);
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.5;
}

/* 动画效果 */
@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(180deg); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.3; }
  50% { transform: scale(1.1); opacity: 0.2; }
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(0); }
  40% { transform: translateX(5px); }
  60% { transform: translateX(3px); }
}

/* 响应式设计 */
@media (max-width: 768px) {
  .about-section {
    padding: 60px 0;
  }
  
  .about-title {
    font-size: 2.5rem;
  }
  
  .about-content-card {
    padding: 30px 20px;
  }
  
  .business-model-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .dividend-stages {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .dividend-flow {
    flex-direction: column;
    gap: 10px;
  }
  
  .flow-arrow {
    transform: rotate(90deg);
    margin: 10px 0;
  }
  
  .rules-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .about-title {
    font-size: 2rem;
  }
  
  .about-subtitle {
    font-size: 1.1rem;
  }
  
  .dividend-title {
    font-size: 2.2rem;
  }
  
  .stage-icon {
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
  }
  
  .model-number {
    width: 50px;
    height: 50px;
    font-size: 1.3rem;
  }
}