/* 就业管家知识树页面样式 */
.career-tree-page {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
  /* 与整体设计系统保持一致的色彩变量 */
  --primary-color: #3b82f6;
  --primary-light: #dbeafe;
  --primary-lighter: #eff6ff;
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --card-bg: #ffffff;
  --border-color: #e5e7eb;
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
}

/* 全局强制垂直布局规则 - 最高优先级 */
.career-tree-page .section-content {
  display: flex !important;
  flex-direction: column !important;
  align-items: stretch !important;
  justify-content: flex-start !important;
  flex-wrap: nowrap !important;
}

.career-tree-page .center-item {
  display: block !important;
  width: 100% !important;
  flex-shrink: 0 !important;
  float: none !important;
  position: relative !important;
}

.career-tree-page.tall-screen {
  scroll-behavior: auto;
}

.career-tree-page.tall-screen .top-content-wrapper {
  height: 1080px !important;
  overflow-y: auto;
  position: relative;
  padding-top: 80px;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  background-size: cover;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.career-tree-page.tall-screen .top-content-wrapper::-webkit-scrollbar {
  display: none;
}

.career-tree-page.tall-screen .top-content {
  min-height: 100%;
  position: relative;
}



.top-content-wrapper {
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  background-size: cover;
  min-height: 100vh;
  position: relative;
}

.top-content {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 40px 20px;
}

.canvas-container {
  position: relative;
  width: 1400px;
  max-width: 100%;
  margin: 0 auto;
}

.tree-layout {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 20px;
  position: relative;
  z-index: 10;
  margin-top: 20px;
}

/* 顶部菜单容器样式 */
.top-menu-container {
  width: 100%;
  margin-bottom: 30px;
  padding: 0 20px;
}

.menu-panel {
  background: var(--card-bg);
  padding: 12px;
  border-radius: 12px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--border-color);
  display: flex;
  justify-content: center;
  gap: 12px;
  max-width: 800px;
  margin: 0 auto;
}

/* 移除menu-header相关样式，不再需要标题 */

.menu-item {
  background: #f8fafc;
  padding: 10px 20px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 14px;
  font-weight: 500;
  text-align: center;
  border: 1px solid var(--border-color);
  white-space: nowrap;
  flex: 0 0 auto;
}

.menu-item:hover {
  background: var(--primary-light);
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.menu-item.selected {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
  transform: scale(1.02);
  box-shadow: 0 4px 8px rgba(59, 130, 246, 0.3);
  position: relative;
}

.menu-item.selected::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 3px;
  background: white;
  border-radius: 2px;
}

/* 左栏样式 */
.left-column {
  width: 20%;
  min-width: 240px;
}

.left-panel {
  background: var(--card-bg);
  padding: 16px;
  border-radius: 16px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--border-color);
  position: absolute;
  left: 20px;
  z-index: 66;
  width: 240px;
  min-width: 240px;
  max-width: fit-content;
}

.left-item {
  background: var(--primary-lighter);
  padding: 8px 12px;
  border-radius: 8px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  margin-bottom: 24px;
}

.left-item:last-child {
  margin-bottom: 0;
}

.panel-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 16px;
  background: white;
  border-radius: 9999px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  font-size: 14px;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.panel-item.clickable {
  cursor: pointer;
}

.panel-item.clickable:hover {
  background: #f8fafc;
  transform: translateY(-1px);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.panel-header {
  text-align: center;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--primary-color);
}

.panel-header h3 {
  margin: 0;
  font-size: 16px;
  font-weight: bold;
  color: var(--primary-color);
}

.resource-info {
  display: flex;
  align-items: center;
  gap: 8px;
}

.resource-icon {
  color: var(--primary-color);
  flex-shrink: 0;
}

.resource-name {
  color: var(--text-primary);
  font-size: 14px;
}

.arrow-icon {
  color: var(--text-secondary);
  flex-shrink: 0;
}

.course-info {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ai-badge {
  background: var(--primary-color);
  color: white;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: bold;
}

.course-name {
  color: var(--text-primary);
}

.view-detail-button {
  color: var(--primary-color);
  font-weight: bold;
  font-size: 12px;
  text-decoration: underline;
  background: none;
  border: none;
  cursor: pointer;
  margin-left: 16px;
}

.view-detail-button:hover {
  color: #1d4ed8;
}

/* 中栏样式 */
.center-column {
  width: 36%;
  display: flex;
  justify-content: center;
}

.center-panel {
  background: var(--card-bg);
  padding: 32px 24px;
  border-radius: 16px;
  width: 360px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--border-color);
  /* 确保center-panel自身布局稳定 */
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.center-section {
  background: white;
  padding: 16px;
  border-radius: 8px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  border: 1px solid var(--border-color);
  /* margin-bottom已移除，使用parent的gap代替 */
}

/* 项目将按照DOM顺序显示，在JSX中已经通过.sort()方法保证了正确的排序 */

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  border-radius: 9999px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  cursor: pointer;
  border: 2px solid #efefef;
  color: #333;
  transition: all 0.2s ease;
}

.section-header:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.section-header.checked-course {
  border-color: var(--primary-color);
  color: var(--primary-color);
  background: var(--primary-lighter);
}

.section-title-area {
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-icon {
  display: flex;
  align-items: center;
  width: 24px;
  height: 24px;
}

.section-title {
  font-weight: 600;
  font-size: 16px;
}

.expand-icon {
  transition: transform 0.2s ease;
  cursor: pointer;
}

.expand-icon.expanded {
  transform: rotate(180deg);
}

.section-content {
  margin-top: 16px;
  display: flex !important;
  flex-direction: column !important;
  gap: 8px;
  /* 确保在所有屏幕尺寸下都保持垂直排列 */
  align-items: stretch !important;
  width: 100%;
  /* 防止flex容器收缩或任何异常布局 */
  flex-wrap: nowrap !important;
  justify-content: flex-start !important;
}

.center-item {
  background: var(--primary-lighter);
  padding: 12px 48px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  /* 移除可能引起布局问题的order属性，改用自然文档流排序 */
  /* order: var(--item-order, 0); */
  /* 确保item始终占满容器宽度 */
  width: 100% !important;
  box-sizing: border-box;
  /* 确保flex item不会收缩 */
  flex-shrink: 0 !important;
  /* 强制块级显示，防止内联或其他异常显示模式 */
  display: block !important;
  /* 确保没有浮动 */
  float: none !important;
  /* 防止绝对定位 */
  position: relative !important;
  /* 确保垂直排列时的底部间距 */
  margin-bottom: 0 !important;
}

.center-item:hover {
  background: var(--primary-light);
}

.center-item.checked-course-item {
  background: var(--primary-color);
  color: white;
}

.item-content {
  background: white;
  padding: 8px;
  border-radius: 9999px;
  font-size: 14px;
  font-weight: bold;
  text-align: center;
  line-height: 1;
  border: 1px solid var(--border-color);
}

.center-item.checked-course-item .item-content {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  border-color: rgba(255, 255, 255, 0.3);
}

/* 右栏样式 */
.right-column {
  width: 20%;
  min-width: 240px;
}

.right-panel {
  background: var(--card-bg);
  padding: 16px;
  border-radius: 16px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--border-color);
  position: absolute;
  right: 20px;
  z-index: 66;
  width: 240px;
}

.right-item {
  background: var(--primary-lighter);
  border-radius: 8px;
  padding: 8px 12px;
  margin-bottom: 24px;
}

.right-item:last-child {
  margin-bottom: 0;
}



/* SVG 连接线样式 */
.connection-canvas {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 1;
}

.connection-line {
  stroke: rgba(59, 130, 246, 0.3);
  stroke-width: 55px;
  stroke-linecap: round;
  fill: none;
}



/* 所有屏幕尺寸确保布局稳定性 */
@media (min-width: 1201px) {
  .section-content {
    /* 强制垂直布局，防止任何意外的flex布局变化 */
    display: flex !important;
    flex-direction: column !important;
    align-items: stretch !important;
    flex-wrap: nowrap !important;
    justify-content: flex-start !important;
  }
  
  .center-item {
    /* 确保item的布局稳定 */
    display: block !important;
    width: 100% !important;
    margin-bottom: 0 !important;
    flex-shrink: 0 !important;
    flex-grow: 0 !important;
    flex-basis: auto !important;
  }
}

/* 超大屏幕额外保障 */
@media (min-width: 1601px) {
  .section-content {
    /* 在超大屏幕上再次强制垂直布局 */
    flex-direction: column !important;
    align-items: stretch !important;
    flex-wrap: nowrap !important;
  }
  
  .center-item {
    /* 在超大屏幕上确保item的布局稳定 */
    display: block !important;
    width: 100% !important;
    margin-bottom: 0 !important;
  }
}

/* 响应式样式 */
@media (max-width: 1600px) {
  .canvas-container {
    width: 1200px;
  }
  
  .left-panel {
    width: 220px;
    min-width: 220px;
    left: 20px;
  }
  
  .right-panel {
    width: 220px;
    min-width: 220px;
    right: 20px;
  }
  
  .top-menu-container {
    padding: 12px 20px;
  }
  
  .menu-panel {
    gap: 6px;
  }
  
  .menu-item {
    padding: 8px 16px;
    font-size: 13px;
  }
  
  .center-panel {
    width: 320px;
    padding: 24px 16px;
  }
}

@media (max-width: 1400px) {
  .canvas-container {
    width: 1000px;
  }
  
  .tree-layout {
    gap: 10px;
  }
  
  .center-panel {
    width: 300px;
    padding: 24px 16px;
  }
  
  .left-panel {
    width: 200px;
    min-width: 200px;
    left: 10px;
  }
  
  .right-panel {
    width: 200px;
    min-width: 200px;
    right: 10px;
  }
  
  .menu-item {
    font-size: 12px;
    padding: 6px 12px;
  }
}

@media (max-width: 1200px) {
  .top-menu-container {
    padding: 10px;
  }
  
  .menu-panel {
    overflow-x: auto;
    gap: 4px;
    padding: 6px;
    scrollbar-width: thin;
  }
  
  .menu-item {
    font-size: 11px;
    padding: 6px 10px;
  }
  
  .tree-layout {
    flex-direction: column;
    align-items: center;
    gap: 30px;
  }
  
  .left-column,
  .center-column,
  .right-column {
    width: 100%;
    max-width: 500px;
  }
  
  .left-panel,
  .right-panel {
    position: relative;
    width: 100%;
    min-width: auto;
    left: auto;
    right: auto;
  }
  
  .connection-canvas {
    display: none;
  }
  
  /* 确保小屏幕下也保持垂直布局 */
  .section-content {
    display: flex !important;
    flex-direction: column !important;
    align-items: stretch !important;
    flex-wrap: nowrap !important;
  }
  
  .center-item {
    display: block !important;
    width: 100% !important;
    margin-bottom: 0 !important;
  }
}

@media (max-width: 768px) {
  .top-menu-container {
    padding: 8px;
  }
  
  .menu-panel {
    flex-wrap: wrap;
    gap: 4px;
    padding: 4px;
  }
  
  .menu-item {
    font-size: 10px;
    padding: 5px 8px;
    flex: 0 0 calc(33.333% - 4px);
  }
  
  .top-content {
    padding: 20px 10px;
  }
  
  .center-panel {
    width: 100%;
    padding: 24px 16px;
  }
  
  /* 确保移动端也保持垂直布局 */
  .section-content {
    display: flex !important;
    flex-direction: column !important;
    align-items: stretch !important;
    flex-wrap: nowrap !important;
  }
  
  .center-item {
    display: block !important;
    width: 100% !important;
    margin-bottom: 0 !important;
  }
}