/* 页面容器 */
.page-container {
  min-height: 100vh;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  font-family: 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
}

/* 步骤指示器 */
.step-indicator {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 32rpx;
  background: #FFFFFF;
  box-shadow: 0 2rpx 8rpx rgba(0,0,0,0.05);
  margin-bottom: 24rpx;
  width: 100%;
  box-sizing: border-box;
}

.step-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
}

.step-number {
  width: 48rpx;
  height: 48rpx;
  border-radius: 50%;
  background: #E5E5E5;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24rpx;
  font-weight: 600;
  color: #999;
  margin-bottom: 8rpx;
  transition: all 0.3s ease;
}

.step-text {
  font-size: 20rpx;
  color: #999;
  transition: all 0.3s ease;
}

.step-item.active .step-number {
  background: #007AFF;
  color: #FFFFFF;
  box-shadow: 0 0 0 8rpx rgba(0,122,255,0.1);
}

.step-item.active .step-text {
  color: #007AFF;
  font-weight: 500;
}

.step-line {
  flex: 1;
  height: 2rpx;
  background: #E5E5E5;
  margin: 0 16rpx;
  transition: all 0.3s ease;
}

.step-line.active {
  background: #007AFF;
}

/* 头部样式 */
.page-header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10rpx);
  box-shadow: 0 2rpx 12rpx rgba(0,0,0,0.05);
  padding: 28rpx 0;
  text-align: center;
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-title {
  font-size: 30rpx;
  font-weight: 700;
  color: #2c3e50;
  letter-spacing: 1rpx;
}

/* 主要内容区域 */
.main-content {
  flex: 1;
  padding: 24rpx;
  display: flex;
  flex-direction: column;
  gap: 24rpx;
  padding-bottom: 48rpx;
  box-sizing: border-box;
}

/* 卡片基础样式 */
.info-card,
.control-card,
.result-card {
  background: rgba(255, 255, 255, 0.95);
  border-radius: 24rpx;
  padding: 32rpx;
  box-shadow: 0 6rpx 24rpx rgba(0,0,0,0.08);
  backdrop-filter: blur(12rpx);
  border: 1rpx solid rgba(255, 255, 255, 0.4);
  transition: all 0.3s ease;
  box-sizing: border-box;
}

.info-card:hover,
.control-card:hover,
.result-card:hover {
  box-shadow: 0 8rpx 32rpx rgba(0,0,0,0.12);
  transform: translateY(-4rpx);
  background: rgba(255, 255, 255, 0.98);
}

/* 卡片标题 */
.card-subtitle {
  font-size: 26rpx;
  font-weight: 600;
  color: #64748b;
  margin-bottom: 24rpx;
  padding-bottom: 16rpx;
  border-bottom: 1rpx solid #f1f5f9;
}

/* 信息行样式 */
.info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16rpx 0;
  border-bottom: 1rpx solid #f8fafc;
}

.info-row:last-child {
  border-bottom: none;
}

.info-label {
  font-size: 26rpx;
  color: #64748b;
  font-weight: 500;
}

.info-value {
  font-size: 26rpx;
  font-weight: 600;
  color: #2c3e50;
}

.info-value.price {
  color: #ef4444;
  font-size: 32rpx;
  font-weight: 700;
}

/* 提示信息 */
.info-hint {
  font-size: 22rpx;
  color: #94a3b8;
  text-align: center;
  margin-top: 20rpx;
  padding-top: 20rpx;
  border-top: 1rpx solid #f1f5f9;
}

/* 数量控制 */
.quantity-box {
  display: flex;
  align-items: center;
  gap: 24rpx;
  margin-top: 12rpx;
  justify-content: center;
}

.quantity-btn {
  width: 80rpx;
  height: 80rpx;
  border-radius: 40rpx;
  font-size: 36rpx;
  font-weight: bold;
  background: rgba(255, 255, 255, 0.9);
  color: #3b82f6;
  border: 2rpx solid rgba(96, 165, 250, 0.4);
  backdrop-filter: blur(12rpx);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  box-shadow: 0 4rpx 12rpx rgba(0,0,0,0.08);
}

.quantity-btn:hover {
  background: rgba(59, 130, 246, 0.1);
  border-color: rgba(59, 130, 246, 0.6);
  transform: scale(1.1);
}

.quantity-btn.minus:hover {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.6);
  color: #ef4444;
}

.quantity-btn.plus:hover {
  background: rgba(16, 185, 129, 0.1);
  border-color: rgba(16, 185, 129, 0.6);
  color: #10b981;
}

.quantity-input {
  width: 160rpx;
  height: 80rpx;
  border: 2rpx solid rgba(96, 165, 250, 0.4);
  border-radius: 16rpx;
  padding: 0 24rpx;
  font-size: 28rpx;
  font-weight: 600;
  text-align: center;
  color: #2c3e50;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12rpx);
  box-shadow: inset 0 2rpx 8rpx rgba(0,0,0,0.08);
  box-sizing: border-box;
}

/* 按钮区域 */
.button-section {
  margin-top: 12rpx;
}

.button-section.bottom {
  margin-top: 20rpx;
}

/* 按钮样式 */
.primary-btn {
  width: 100%;
  height: 92rpx;
  line-height: 92rpx;
  font-size: 28rpx;
  font-weight: 600;
  border-radius: 46rpx;
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  color: #fff;
  border: none;
  box-shadow: 0 6rpx 24rpx rgba(59, 130, 246, 0.4);
  transition: all 0.3s ease;
  text-align: center;
}

.primary-btn:hover {
  transform: translateY(-4rpx);
  box-shadow: 0 8rpx 32rpx rgba(59, 130, 246, 0.5);
}

.secondary-btn {
  width: 100%;
  height: 84rpx;
  line-height: 84rpx;
  font-size: 26rpx;
  font-weight: 600;
  border-radius: 42rpx;
  background: rgba(255, 255, 255, 0.95);
  color: #3b82f6;
  border: 2rpx solid rgba(59, 130, 246, 0.4);
  backdrop-filter: blur(12rpx);
  transition: all 0.3s ease;
  text-align: center;
  box-shadow: 0 4rpx 16rpx rgba(0,0,0,0.08);
}

.secondary-btn:hover {
  background: rgba(59, 130, 246, 0.08);
  border-color: rgba(59, 130, 246, 0.6);
  transform: translateY(-4rpx);
  box-shadow: 0 6rpx 24rpx rgba(59, 130, 246, 0.3);
}

/* 结果卡片 */
.result-card {
  animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30rpx);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 结果行 */
.result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20rpx 0;
}

.result-label {
  font-size: 26rpx;
  color: #64748b;
  font-weight: 500;
}

.result-value {
  font-size: 36rpx;
  font-weight: 700;
  color: #ef4444;
  text-shadow: 0 2rpx 4rpx rgba(239, 68, 68, 0.2);
}

/* 结果提示 */
.result-hint {
  font-size: 22rpx;
  color: #94a3b8;
  text-align: center;
  margin-top: 16rpx;
  padding-top: 16rpx;
  border-top: 1rpx solid #f1f5f9;
  line-height: 1.5;
}

/* 响应式设计 */
@media (max-width: 750rpx) {
  .main-content {
    padding: 20rpx;
    gap: 20rpx;
  }
  
  .info-card,
  .control-card,
  .result-card {
    padding: 28rpx;
  }
  
  .header-title {
    font-size: 28rpx;
  }
  
  .card-subtitle {
    font-size: 24rpx;
    margin-bottom: 20rpx;
  }
  
  .info-label,
  .info-value {
    font-size: 24rpx;
  }
  
  .info-value.price {
    font-size: 30rpx;
  }
  
  .result-value {
    font-size: 32rpx;
  }
  
  .quantity-box {
    gap: 20rpx;
  }
  
  .quantity-btn {
    width: 72rpx;
    height: 72rpx;
    font-size: 32rpx;
  }
  
  .quantity-input {
    width: 140rpx;
    height: 72rpx;
    font-size: 26rpx;
  }
  
  .primary-btn {
    height: 84rpx;
    line-height: 84rpx;
    font-size: 26rpx;
  }
  
  .secondary-btn {
    height: 76rpx;
    line-height: 76rpx;
    font-size: 24rpx;
  }
}

/* 小屏幕设备适配 */
@media (max-width: 375rpx) {
  .main-content {
    padding: 16rpx;
    gap: 16rpx;
  }
  
  .info-card,
  .control-card,
  .result-card {
    padding: 24rpx;
  }
  
  .header-title {
    font-size: 26rpx;
  }
  
  .card-subtitle {
    font-size: 22rpx;
    margin-bottom: 16rpx;
  }
  
  .info-label,
  .info-value {
    font-size: 22rpx;
  }
  
  .info-value.price {
    font-size: 28rpx;
  }
  
  .result-value {
    font-size: 28rpx;
  }
  
  .quantity-box {
    gap: 16rpx;
  }
  
  .quantity-btn {
    width: 64rpx;
    height: 64rpx;
    font-size: 28rpx;
  }
  
  .quantity-input {
    width: 120rpx;
    height: 64rpx;
    font-size: 24rpx;
  }
  
  .primary-btn {
    height: 76rpx;
    line-height: 76rpx;
    font-size: 24rpx;
  }
  
  .secondary-btn {
    height: 68rpx;
    line-height: 68rpx;
    font-size: 22rpx;
  }
}