/* OPW 拼读样式 */

.page-title {
  font-size: 2rem;
  font-weight: 700;
  color: #2c3e50;
  text-align: center;
  margin: 30px 0;
}

/* 介绍卡片 */
.intro-card {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 16px;
  padding: 30px;
  color: white;
  margin-bottom: 40px;
}

.intro-card h2 {
  font-size: 1.5rem;
  margin-bottom: 15px;
}

.intro-card p {
  font-size: 1.1rem;
  line-height: 1.8;
  opacity: 0.95;
}

/* Level 网格 */
.levels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
  margin-bottom: 40px;
}

.level-card {
  background: white;
  border-radius: 16px;
  padding: 30px;
  text-decoration: none;
  color: inherit;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transition: all 0.3s;
  border-top: 5px solid;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.level-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.level-1 { border-top-color: #FF6B6B; }
.level-2 { border-top-color: #FF8E53; }
.level-3 { border-top-color: #FFD93D; }
.level-4 { border-top-color: #6BCB77; }
.level-5 { border-top-color: #4D96FF; }

.level-badge {
  display: inline-block;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 6px 16px;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.9rem;
  width: fit-content;
}

.level-card h3 {
  font-size: 1.4rem;
  font-weight: 700;
  color: #2c3e50;
  margin: 0;
}

.level-card p {
  color: #7f8c8d;
  font-size: 0.95rem;
  margin: 0;
  flex-grow: 1;
}

.level-status {
  font-weight: 600;
  color: #667eea;
  margin-top: auto;
}

/* 操作按钮 */
.action-buttons {
  text-align: center;
  padding: 40px 0;
}

/* 响应式 */
@media (max-width: 768px) {
  .levels-grid {
    grid-template-columns: 1fr;
  }

  .intro-card {
    padding: 20px;
  }

  .intro-card h2 {
    font-size: 1.3rem;
  }

  .intro-card p {
    font-size: 1rem;
  }
}