/* 训练指导页面样式 */
.training-banner {
  height: 300px;
  background: #2E3192;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  margin-bottom: 2rem;
}

.training-banner h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.training-levels {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 3rem;
}

.level-card {
  text-align: center;
  padding: 2rem;
  border-radius: 8px;
  background: #f5f5f5;
  transition: all 0.3s;
}

.level-card:hover {
  background: #2E3192;
  color: #fff;
}

.level-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.training-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.training-video {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 比例 */
  height: 0;
  overflow: hidden;
}

.training-video iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.training-content {
  padding: 2rem;
  background: #f5f5f5;
  border-radius: 8px;
}

.training-steps {
  list-style: none;
  counter-reset: step;
}

.training-step {
  position: relative;
  padding-left: 3rem;
  margin-bottom: 1.5rem;
}

.training-step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 2rem;
  height: 2rem;
  background: #2E3192;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}