/* 学习进度概览区域 */
.progress-overview {
  background: #FFFFFF;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 24px;
}

.progress-grid {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.progress-item {
  flex: 1;
  min-width: 200px;
  text-align: center;
  padding: 16px;
  background: #F9FAFC;
  border-radius: 8px;
  transition: transform 0.3s, box-shadow 0.3s;
}

.progress-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.progress-circle {
  position: relative;
  width: 120px;
  height: 120px;
  margin: 0 auto 16px;
}

.progress-circle svg {
  transform: rotate(-90deg);
}

.progress-circle circle {
  fill: none;
  stroke-width: 8px;
}

.progress-circle circle.bg {
  stroke: #EEEEEE;
}

.progress-circle circle.fill {
  stroke: #2A5DAA;
  stroke-linecap: round;
}

.progress-number {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 24px;
  font-weight: bold;
  color: #2A5DAA;
}

.progress-label {
  font-size: 16px;
  font-weight: bold;
  color: #333333;
  margin-bottom: 8px;
}

.progress-desc {
  font-size: 13px;
  color: #666666;
}

/* 知识图谱区域样式 */
.knowledge-graph {
  background: #FFFFFF;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 24px;
}

.map-container {
  min-height: 400px;
  border: 1px solid #EEEEEE;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.map-placeholder {
  text-align: center;
  color: #999999;
}

.map-placeholder i {
  font-size: 48px;
  margin-bottom: 16px;
  display: block;
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.1); opacity: 1; }
  100% { transform: scale(1); opacity: 0.5; }
}

/* 学习路径卡片样式优化 */
.paths-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 16px;
}

.path-card {
  background: #FFFFFF;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s, box-shadow 0.3s;
}

.path-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.path-header {
  margin-bottom: 12px;
}

.path-title {
  font-size: 18px;
  font-weight: bold;
  color: #333333;
  margin-bottom: 8px;
}

.path-meta {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: #666666;
}

.path-desc {
  font-size: 14px;
  color: #666666;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.path-progress {
  margin-bottom: 16px;
}

.progress-bar {
  height: 6px;
  background: #EEEEEE;
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 8px;
}

.progress-fill {
  height: 100%;
  background: #2A5DAA;
  border-radius: 3px;
}

.progress-text {
  font-size: 12px;
  color: #666666;
  text-align: right;
}

.path-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.path-stats {
  display: flex;
  gap: 12px;
}

.path-stat {
  font-size: 12px;
  color: #666666;
}

.continue-btn {
  padding: 6px 16px;
  background: #2A5DAA;
  color: #FFFFFF;
  border-radius: 4px;
  font-size: 14px;
  transition: background-color 0.3s;
}

.continue-btn:hover {
  background: #4B8CD7;
}

/* 热门文章卡片 - 水平布局 - 最终修复版 */
.article-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 20px;
}

.article-card.horizontal {
  display: flex;
  flex-direction: row;
  align-items: stretch;
  background: #FFFFFF;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s, box-shadow 0.3s;
  height: 180px;
  position: relative;
  flex-wrap: nowrap; /* 防止换行导致图片掉到下一行 */
}

.article-card.horizontal:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.article-card.horizontal .article-content {
  flex: 1 1 auto;
  /* 去掉宽度计算，避免宽度累计导致换行 */
  /* width: calc(100% - 220px); */
  min-width: 0; /* 允许内容收缩，避免把图片挤到下一行 */
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  background: #FFFFFF;
}

.article-card.horizontal .vertical-title {
  font-size: 18px;
  font-weight: 600;
  color: #333333;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card.horizontal p {
  font-size: 14px;
  color: #666666;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card.horizontal .article-meta {
  display: flex;
  gap: 15px;
  font-size: 13px;
  color: #999999;
  margin-bottom: 10px;
}

.article-card.horizontal .read-more {
  color: #2A5DAA;
  font-size: 14px;
  font-weight: 500;
  align-self: flex-start;
  transition: color 0.3s;
}

.article-card.horizontal .read-more:hover {
  color: #1E4785;
}

.article-card.horizontal .article-image {
  flex: 0 0 220px;
  width: 220px;
  height: 180px;
  position: relative;
  overflow: hidden;
}

.article-card.horizontal .article-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.article-card.horizontal:hover .article-image img {
  transform: scale(1.05);
}

@media screen and (max-width: 768px) {
  .article-card.horizontal {
    flex-direction: column;
    height: auto;
  }
  
  .article-card.horizontal .article-content {
    width: 100%;
    padding: 15px;
  }
  
  .article-card.horizontal .article-image {
    width: 100%;
    height: 180px;
    order: -1;
  }
}