/**
 * 首页样式 - Homepage Styles
 * 基于魔塔MCP页面设计的现代化首页布局
 * 支持主题系统和响应式设计
 */

/* 导入缩略图组件样式 */
@import '../components/thumbnail-gallery.css';

/* 导入图库模态框样式 */
@import '../components/image-gallery-modal.css';

/* 确保页面容器占满全宽 */
body, .app-container, .main-content {
  width: 100% !important;
  max-width: none !important;
  min-width: auto !important;
}

/* 首页布局容器 */
.homepage-container {
  display: flex;
  width: 100% !important;
  max-width: none !important;
  min-width: auto !important;
  min-height: calc(100vh - 80px);
  background: var(--background-color, #ffffff);
  box-sizing: border-box;
}

/* 左侧分类导航 - 默认支持滚动条，可切换为动态缩放模式 */
.homepage-sidebar {
  width: 280px;
  min-width: 280px;
  border-right: 1px solid var(--border-color, #f0f0f0);
  overflow-y: auto;  /* 默认启用垂直滚动条 */
  overflow-x: hidden; /* 禁用水平滚动条 */
  position: sticky;
  top: 80px;
  height: calc(100vh - 80px);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); /* 平滑过渡动画，包含width */
  scrollbar-width: thin; /* Firefox细滚动条 */
  scrollbar-color: var(--primary-color, #1890ff) transparent;
}

/* PC端折叠按钮 - 独立定位 */
.sidebar-collapse-btn {
  position: fixed;
  top: calc(80px + 1rem);
  left: calc(280px - 12px); /* 展开状态：侧边栏右边缘竖线上方 */
  width: 24px;
  height: 24px;
  background: var(--card-bg, #ffffff);
  border: 1px solid var(--border-color, #e1e5e9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 1000;
  color: var(--text-secondary, #8c8c8c);
  font-size: 12px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.sidebar-collapse-btn:hover {
  background: var(--primary-color, #1890ff);
  color: white;
  transform: scale(1.1);
  box-shadow: 0 3px 8px rgba(24, 144, 255, 0.3);
}

/* PC端折叠状态 - 完全隐藏 */
.homepage-sidebar.pc-collapsed {
  width: 0 !important;
  min-width: 0 !important;
  padding: 0 !important;
  border: none !important;
  overflow: hidden !important;
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none !important;
}

/* PC端折叠状态下强制隐藏所有子元素 */
.homepage-sidebar.pc-collapsed * {
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none !important;
  display: none !important;
}

.homepage-sidebar.pc-collapsed .sidebar-collapse-btn i {
  transform: rotate(180deg);
}

/* 折叠状态下按钮重定位 - 统一样式 */
.sidebar-collapse-btn.collapsed {
  left: 12px !important;
  right: auto !important;
  position: fixed !important;
  
  /* 保持与展开状态一致的尺寸和样式 */
  width: 24px !important;
  height: 24px !important;
  background: var(--card-bg, #ffffff) !important;
  border: 1px solid var(--border-color, #e1e5e9) !important;
  border-radius: 50% !important;
  color: var(--text-secondary, #8c8c8c) !important;
  
  /* 保持一致的阴影和过渡 */
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1) !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
  
  /* 确保可见性 */
  visibility: visible !important;
  opacity: 1 !important;
  pointer-events: auto !important;
}

.sidebar-collapse-btn.collapsed:hover {
  background: var(--primary-color, #1890ff) !important;
  color: white !important;
  transform: scale(1.15) !important;
  box-shadow: 0 6px 16px rgba(24, 144, 255, 0.4) !important;
  border-color: var(--primary-color, #1890ff) !important;
}

.sidebar-collapse-btn.collapsed:active {
  transform: scale(1.05) !important;
}

/* 折叠状态下的按钮图标优化 */
.sidebar-collapse-btn.collapsed i {
  font-size: 14px !important;
  transition: transform 0.2s ease !important;
}

/* 添加脉冲动画提示用户注意 - 首次折叠时 */
@keyframes pulse-hint {
  0%, 100% { 
    transform: scale(1); 
    box-shadow: 0 4px 12px rgba(24, 144, 255, 0.3);
  }
  50% { 
    transform: scale(1.08); 
    box-shadow: 0 6px 16px rgba(24, 144, 255, 0.5);
  }
}

.sidebar-collapse-btn.collapsed.first-collapse {
  animation: pulse-hint 2s ease-in-out 3;
}

/* 折叠状态下隐藏文字 */
.homepage-sidebar.collapsed .nav-link span:not(.nav-count),
.homepage-sidebar.collapsed .nav-count {
  opacity: 0;
  width: 0;
  overflow: hidden;
}

/* 折叠状态下的导航项居中 */
.homepage-sidebar.collapsed .nav-link {
  justify-content: center;
  padding: 0.875rem 0 !important;
}

.homepage-sidebar.collapsed .nav-link i {
  margin-right: 0 !important;
}

/* WebKit浏览器滚动条样式优化 */
.homepage-sidebar::-webkit-scrollbar {
  width: 6px;
}

.homepage-sidebar::-webkit-scrollbar-track {
  background: transparent;
}

.homepage-sidebar::-webkit-scrollbar-thumb {
  background: var(--primary-color, #1890ff);
  border-radius: 3px;
  opacity: 0.6;
}

.homepage-sidebar::-webkit-scrollbar-thumb:hover {
  opacity: 0.8;
}

/* 动态缩放模式下禁用滚动条 */
.homepage-sidebar.dynamic-scaling {
  overflow: hidden !important;
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE/Edge */
}

.homepage-sidebar.dynamic-scaling::-webkit-scrollbar {
  display: none; /* Chrome/Safari/Opera */
}



/* 导航区域 - 支持动态高度调整 */
.nav-section {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border-color, #f0f0f0);
  transition: padding 0.3s ease, min-height 0.3s ease; /* 平滑过渡动画 */
}

.nav-section:last-child {
  border-bottom: none;
}

.nav-section-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary-color, #1890ff);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0 1.5rem;
  margin-bottom: 1rem;
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  margin-bottom: 0.25rem;
  transition: margin-bottom 0.3s ease; /* 支持动态间距调整 */
}

.homepage-sidebar .nav-link {
  display: flex !important;
  align-items: center !important;
  padding: 0.875rem 1.5rem !important;
  color: var(--text-primary, #1f2328) !important;
  text-decoration: none !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
  border-left: 3px solid transparent !important;
  position: relative !important;
  font-weight: 600 !important;
  font-size: 14px !important;
  background: transparent !important;
}

/* 动态缩放模式下的导航链接样式 */
.homepage-sidebar.dynamic-scaling .nav-link {
  /* 样式将通过JavaScript动态应用 */
  transition: all 0.2s ease !important;
}

/* 动态缩放模式下的图标 */
.homepage-sidebar.dynamic-scaling .nav-link i {
  transition: font-size 0.2s ease !important;
}

/* 动态缩放模式下的计数标签 */
.homepage-sidebar.dynamic-scaling .nav-count {
  transition: font-size 0.2s ease, padding 0.2s ease, min-width 0.2s ease !important;
}

/* 移动端手动分类切换按钮 */
.manual-category-toggle {
  display: block;
  width: 100%;
  padding: 0.75rem;
  background: var(--surface-color, #f8f9fa);
  border: 1px solid var(--border-color, #e1e5e9);
  border-radius: 0.5rem;
  color: var(--text-primary, #333);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  margin-bottom: 0.75rem;
  transition: all 0.2s ease;
  touch-action: manipulation; /* 优化移动端点击 */
  -webkit-tap-highlight-color: transparent; /* 移除点击高亮 */
}

.manual-category-toggle:hover {
  background: var(--primary-light, rgba(24, 144, 255, 0.05));
  border-color: var(--primary-color, #1890ff);
  color: var(--primary-color, #1890ff);
}

.manual-category-toggle:active {
  transform: scale(0.98);
}



.homepage-sidebar .nav-link:hover {
  color: var(--primary-hover, #40a9ff) !important;
  background: var(--surface-color, rgba(24, 144, 255, 0.05)) !important;
  border-left-color: var(--primary-color, #1890ff) !important;
  transform: translateX(2px) !important;
}

.homepage-sidebar .nav-link:hover .nav-count {
  background: var(--primary-light, rgba(24, 144, 255, 0.1)) !important;
  color: var(--primary-color, #1890ff) !important;
  border-color: var(--primary-light, rgba(24, 144, 255, 0.2)) !important;
}

.homepage-sidebar .nav-link.active {
  color: var(--primary-color, #1890ff) !important;
  background: var(--surface-color, rgba(24, 144, 255, 0.1)) !important;
  border-left-color: var(--primary-color, #1890ff) !important;
  font-weight: 500 !important;
}

.homepage-sidebar .nav-link.active .nav-count {
  background: var(--primary-color, #1890ff) !important;
  color: #ffffff !important;
  border-color: var(--primary-color, #1890ff) !important;
  font-weight: 600 !important;
}

.homepage-sidebar .nav-link i {
  width: 20px !important;
  margin-right: 0.875rem !important;
  font-size: 0.875rem !important;
  text-align: center !important;
}

.homepage-sidebar .nav-link span:not(.nav-count) {
  flex: 1 !important;
  font-size: 14px !important;
  color: var(--text-primary, #1f2328) !important;
  font-weight: 600 !important;
  display: block !important;
  visibility: visible !important;
}

.nav-count {
  font-size: 0.6875rem;
  color: var(--text-tertiary, #8c959f);
  background: var(--count-bg, #f3f4f6);
  padding: 2px 8px;
  border-radius: 12px;
  min-width: 22px;
  text-align: center;
  font-weight: 500;
  border: 1px solid var(--count-border, #e1e7ef);
  margin-left: auto;
  transition: all 0.2s ease;
}

/* 右侧主内容区 - 紧凑化优化 */
.homepage-main {
  flex: 1;
  padding: 1.25rem;
  overflow-y: auto;
}

/* 内容头部 - 紧凑化优化 */
.content-header {
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color, #f0f0f0);
}

.content-title {
  font-size: 1.5rem; /* 24px - 从28px优化减小，更协调 */
  font-weight: 600;
  color: var(--text-primary, #1f2328);
  margin: 0 0 0.75rem 0;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.content-subtitle {
  font-size: 1rem;
  color: var(--text-secondary, #656d76);
  margin: 0;
  line-height: 1.6;
  font-weight: 400;
}

/* 搜索区域 - 2025现代化风格 紧凑化 */
.search-section {
  margin-bottom: 1.25rem;
  padding: 1rem 1.25rem;
  background: var(--surface-color, #fafbfc);
  border-radius: 12px;
  border: 1px solid var(--border-color, #e1e5e9);
}

.search-container {
  width: 100%;
}

.search-row {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.search-input-wrapper {
  flex: 1;
  min-width: 280px;
}

.search-form {
  position: relative;
  width: 100%;
}

.search-input {
  width: 100%;
  height: 40px;
  padding: 0 16px;
  background: var(--input-bg, #ffffff);
  border: 1px solid var(--border-color, #e1e5e9);
  border-radius: 8px;
  color: var(--text-primary, #262626);
  font-size: 1rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
}

.search-input:focus {
  outline: none;
  border-color: var(--primary-color, #1890ff);
  box-shadow: 
    0 0 0 3px rgba(24, 144, 255, 0.1),
    0 2px 8px rgba(24, 144, 255, 0.15);
}

.search-input::placeholder {
  color: var(--text-secondary, #8c8c8c);
  font-size: 1rem;
}

.filter-options {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.filter-label {
  font-size: 1rem;
  color: var(--text-primary, #262626);
  font-weight: 500;
}

.filter-buttons {
  display: flex;
  gap: 4px;
}

/* 筛选区域 - 紧凑化 */
.filter-section {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  height: 32px;
  padding: 0 14px;
  background: var(--filter-bg, #ffffff);
  border: 1px solid var(--filter-border, #e1e5e9);
  border-radius: 6px;
  color: var(--text-secondary, #656d76);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  white-space: nowrap;
  line-height: 1;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
}

.filter-btn:hover {
  color: var(--primary-color, #1890ff);
  background: var(--primary-light, rgba(24, 144, 255, 0.04));
  border-color: var(--primary-color, #1890ff);
  transform: translateY(-1px);
  box-shadow: 0 3px 8px rgba(24, 144, 255, 0.12);
}

.filter-btn.active {
  color: var(--primary-color, #1890ff);
  background: var(--primary-light, rgba(24, 144, 255, 0.08));
  border-color: var(--primary-color, #1890ff);
  font-weight: 600;
  box-shadow: 0 2px 6px rgba(24, 144, 255, 0.15);
}

/* ModelScope风格的筛选按钮组 */
.filter-group {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.filter-group .filter-btn {
  min-height: 32px;
  font-size: 0.875rem;
  padding: 4px 12px;
}

/* 特殊的Hosted/Local按钮样式 */
.filter-btn.hosted-btn {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #ffffff;
  border: none;
}

.filter-btn.hosted-btn:hover {
  background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.filter-btn.local-btn {
  background: #f8f9fa;
  color: #495057;
  border: 1px solid #dee2e6;
}

.filter-btn.local-btn:hover {
  background: #e9ecef;
  color: #495057;
  border-color: #adb5bd;
}

/* 内容网格 - 紧凑化优化 */
.content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

/* 提示词卡片 - 2025现代化设计 */
.prompt-card {
  background: var(--card-bg, #ffffff);
  border: 1px solid var(--border-color, #e1e5e9);
  border-radius: 0.75rem;
  padding: 1rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  box-shadow: 
    0 1px 3px rgba(0, 0, 0, 0.04),
    0 2px 6px rgba(0, 0, 0, 0.02);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.prompt-card:hover {
  transform: translateY(-2px);
  box-shadow: 
    0 4px 12px rgba(0, 0, 0, 0.08),
    0 8px 24px rgba(0, 0, 0, 0.04);
  border-color: var(--primary-color, #1890ff);
}

/* 确保卡片高度能够自适应缩略图 */
.prompt-card {
  min-height: auto; /* 允许高度自适应 */
  overflow: visible; /* 确保缩略图悬停效果不被裁剪 */
}

/* 卡片悬停时缩略图的联动效果 */
.prompt-card:hover .thumbnail-image {
  transform: scale(1.03);
}

.prompt-card:hover .video-play-overlay {
  background: rgba(0, 0, 0, 0.8);
  transform: translate(-50%, -50%) scale(1.15);
}

/* 重复的徽章样式已删除，使用下方统一的现代化样式 */

/* 卡片内容 - 紧凑化 */
.card-content {
  margin-bottom: 0.75rem;
  /* 当存在缩略图时，减少顶部间距 */
  margin-top: 0;
}

/* 无缩略图卡片的优化布局 */
.prompt-card.no-thumbnail {
  /* 减少内边距，让内容更紧凑 */
  padding: 1rem;
  /* 设置最小高度确保一致性 */
  min-height: 280px;
  /* 使用flex布局优化内容分布 */
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.prompt-card.no-thumbnail .card-content {
  /* 增加内容区域的空间 */
  flex-grow: 1;
  margin-bottom: 1rem;
}

.prompt-card.no-thumbnail .card-description {
  /* 允许描述文本占用更多空间 */
  line-height: 1.6;
  /* 限制最大行数避免过长 */
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  /* 无缩略图时描述与标签间距调整 */
  margin-bottom: 0.75rem;
}

.prompt-card.no-thumbnail .card-tags {
  /* 标签区域的间距优化 */
  margin-top: auto;
  margin-bottom: 0.75rem;
}

/* 有缩略图卡片的布局优化 */
.prompt-card.has-thumbnail {
  /* 保持原有的自适应高度 */
  min-height: auto;
}

.prompt-card.has-thumbnail .card-content {
  /* 缩略图卡片的内容间距保持紧凑 */
  margin-bottom: 0.75rem;
}

.prompt-card.has-thumbnail .card-description {
  /* 有缩略图时描述文本行数限制 */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  /* 为下方的缩略图预留间距 */
  margin-bottom: 1rem;
}

/* 缩略图在描述下方的新布局样式 */
.prompt-card .card-content .card-thumbnail-area {
  /* 缩略图与上方描述和下方标签的间距 */
  margin: 1rem 0;
  /* 确保缩略图居中 */
  display: block;
}

/* 标签区域的上间距调整 */
.prompt-card.has-thumbnail .card-tags {
  margin-top: 0.75rem;
}

/* 无缩略图卡片的底部区域优化 */
.prompt-card.no-thumbnail .card-footer {
  /* 确保底部内容不会被挤压 */
  flex-shrink: 0;
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
}

.prompt-card.no-thumbnail .card-bottom {
  /* 底部操作区域的优化 */
  flex-shrink: 0;
  margin-top: 0.75rem;
}

/* 标题区域的优化 */
.prompt-card.no-thumbnail .card-title {
  /* 无缩略图时标题优化后的大小 */
  font-size: 1rem; /* 从1.1rem减小到1rem，更协调 */
  font-weight: 600;
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.prompt-card.has-thumbnail .card-title {
  /* 有缩略图时保持紧凑 */
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

/* .card-title 重复定义已移除，使用下方更完整的定义 */

/* .card-description 重复定义已移除，使用下方更完整的定义 */

.card-tags {
  display: flex;
  gap: 0.375rem;
  flex-wrap: wrap;
}

.card-tags .tag {
  display: inline-flex;
  align-items: center;
  height: 1.375rem;
  padding: 0 0.5rem;
  background: var(--tag-bg, #f5f5f5);
  color: var(--text-secondary, #8c8c8c);
  font-size: 0.75rem;
  border-radius: 0.6875rem;
  line-height: 1;
}

/* .card-footer 重复定义已移除，使用下方更完整的定义 */

.card-author {
  font-size: 0.875rem;
  color: var(--text-secondary, #8c8c8c);
}

.author-name {
  font-weight: 500;
}

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

.card-stats .stat {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.875rem;
  color: var(--text-secondary, #8c8c8c);
}

.card-stats .stat i {
  font-size: 0.75rem;
}

/* 卡片操作区域 */
.card-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* 重复的按钮样式已删除，使用下方统一的现代化样式 */

/* .card-actions 第一个重复定义已移除，使用下方更完整的定义 */

/* .action-btn 第一个重复定义已移除，使用下方更完整的定义 */

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}

/* 卡片标签组 */
.card-badges {
  display: flex;
  gap: 6px;
  margin-bottom: 12px;
}

.card-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1.4;
}

.card-badge.featured {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #ffffff;
}

.card-badge.new {
  background: #52c41a;
  color: #ffffff;
}

.card-badge.high-rated {
  background: #faad14;
  color: #ffffff;
}

/* 新增现代化徽章类型 */
.card-badge.trending {
  background: linear-gradient(135deg, var(--electric-purple) 0%, var(--ocean-blue) 100%);
  color: #ffffff;
  animation: pulse 2s ease-in-out infinite;
}

.card-badge.premium {
  background: linear-gradient(135deg, var(--sunset-orange) 0%, var(--warm-orange) 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10px);
}

.card-badge.ai-powered {
  background: linear-gradient(135deg, var(--sage-green) 0%, var(--forest-green) 100%);
  color: #ffffff;
  position: relative;
  overflow: hidden;
}

.card-badge.ai-powered::before {
  content: '🤖';
  position: absolute;
  left: -20px;
  animation: slide 3s ease-in-out infinite;
}

.card-badge.community {
  background: linear-gradient(135deg, var(--mocha-brown) 0%, var(--earth-gray) 100%);
  color: #ffffff;
  border-radius: 12px;
}

/* 徽章悬停效果 */
.card-badge:hover {
  transform: scale(1.05);
  transition: transform 0.2s ease;
}

@keyframes slide {
  0%, 100% { left: -20px; }
  50% { left: calc(100% + 5px); }
}

/* 现代化卡片分区设计 */
.card-header-modern {
  background: var(--gradient-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  margin: -24px -24px 16px -24px;
  padding: 16px 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px 16px 0 0;
}

.card-actions-modern {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 16px;
  padding: 12px 0;
  border-top: 1px solid var(--border-color);
  background: linear-gradient(90deg, 
    transparent 0%, 
    rgba(59, 130, 246, 0.02) 50%, 
    transparent 100%);
}

.action-btn-modern {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 8px;
  background: var(--surface-color);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 1rem;
}

.action-btn-modern:hover {
  background: var(--primary-color);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(59, 130, 246, 0.3);
}

.action-btn-modern.liked {
  background: var(--error-color);
  color: #ffffff;
}

.action-btn-modern.bookmarked {
  background: var(--warning-color);
  color: #ffffff;
}

.card-category {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--primary-color, #1890ff);
  font-weight: 500;
}

.card-actions {
  display: flex;
  gap: 4px;
}

.action-btn {
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 4px;
  background: var(--surface-color, #f8f9fa);
  color: var(--text-secondary, #656d76);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6875rem;
}

.action-btn:hover {
  background: var(--primary-color, #1890ff);
  color: #ffffff;
}

.action-btn.active {
  background: #ff4d4f;
  color: #ffffff;
}

/* 收藏按钮特定样式 */
.action-btn.favorite-btn.favorited {
  background: #ffffff !important;
  border-color: #ff4757 !important;
  color: #ff4757 !important;
}

.action-btn.favorite-btn.favorited:hover {
  background: #fff5f5 !important;
  border-color: #ff3742 !important;
  color: #ff3742 !important;
}

/* 未收藏状态的收藏按钮 */
.action-btn.favorite-btn:not(.favorited) {
  background: #ffffff !important;
  border-color: #e0e0e0 !important;
  color: #666666 !important;
}

.action-btn.favorite-btn:not(.favorited):hover {
  background: #f5f5f5 !important;
  border-color: #ff4757 !important;
  color: #ff4757 !important;
}

/* 删除按钮特定样式 */
.action-btn.delete-btn:hover {
  background: #ff4d4f !important;
  border-color: #ff4d4f !important;
  color: #ffffff !important;
}

/* 编辑按钮特定样式 */
.action-btn.edit-btn:hover {
  background: #1890ff !important;
  border-color: #1890ff !important;
  color: #ffffff !important;
}

.card-content {
  margin-bottom: 1rem;
}

.card-title {
  font-size: 15px; /* 从16px减小到15px，更精致 */
  font-weight: 600;
  color: var(--text-primary, #1f2328);
  margin: 0 0 8px 0;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-title a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

.card-title a:hover {
  color: var(--primary-color, #1890ff);
}

.card-description {
  font-size: 0.875rem;
  color: var(--text-secondary, #656d76);
  line-height: 1.5;
  margin: 0 0 12px 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-tags {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.tag {
  font-size: 0.6875rem;
  color: var(--primary-color, #1890ff);
  background: rgba(24, 144, 255, 0.08);
  padding: 2px 6px;
  border-radius: 3px;
  font-weight: 500;
  border: 1px solid rgba(24, 144, 255, 0.2);
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 8px;
  border-top: 1px solid var(--border-color, #e1e5e9);
}

.card-author {
  display: flex;
  align-items: center;
  gap: 6px;
}

.author-avatar {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  object-fit: cover;
}

.author-name {
  font-size: 0.75rem;
  color: var(--text-secondary, #656d76);
  font-weight: 500;
}

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

.stat {
  display: flex;
  align-items: center;
  gap: 3px;
  font-size: 0.75rem;
  color: var(--text-secondary, #656d76);
  font-weight: 500;
}

.stat i {
  font-size: 0.75rem;
}

/* 卡片底部操作区 - 降低高度 */
.card-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border-color, #e1e5e9);
}

.card-view-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  background: var(--gradient-primary-modern);
  color: #ffffff !important;
  border: none;
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  text-decoration: none !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  height: 24px;
  box-shadow: 0 2px 4px rgba(59, 130, 246, 0.2);
}

.card-view-btn:hover {
  background: linear-gradient(135deg, #2563EB 0%, #7C3AED 100%);
  color: #ffffff !important;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.card-actions-bottom {
  display: flex;
  gap: 4px;
}

/* 状态样式 */
.loading-state,
.empty-state,
.error-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  text-align: center;
  grid-column: 1 / -1;
}

.loading-spinner {
  width: 48px;
  height: 48px;
  margin-bottom: 1rem;
}

.spinner {
  width: 100%;
  height: 100%;
  border: 4px solid var(--border-color, #f0f0f0);
  border-top: 4px solid var(--primary-color, #1890ff);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loading-text,
.empty-title,
.error-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary, #262626);
  margin: 0 0 0.5rem 0;
}

.empty-description,
.error-description {
  font-size: 0.875rem;
  color: var(--text-secondary, #8c8c8c);
  margin: 0 0 1.5rem 0;
  max-width: 400px;
}

.empty-icon,
.error-icon {
  font-size: 3rem;
  color: var(--text-secondary, #8c8c8c);
  margin-bottom: 1rem;
}

/* 加载更多 */
.load-more-section {
  text-align: center;
  padding: 2rem 0;
}

.load-more-btn {
  background: var(--surface-color, #fafafa);
  border: 1px solid var(--border-color, #f0f0f0);
  border-radius: 8px;
  padding: 0.875rem 2rem;
  color: var(--text-primary, #262626);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}

.load-more-btn:hover {
  background: var(--primary-color, #1890ff);
  color: #ffffff;
  border-color: var(--primary-color, #1890ff);
}

.load-more-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* 分页区域响应式优化 */
.pagination-section {
  margin-top: 1.5rem;
  padding: 1rem 0;
}

.pagination-info {
  font-size: 0.875rem;
  color: var(--text-secondary, #656d76);
}

/* 响应式设计 */
@media (max-width: 1200px) {
  .content-grid {
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  }
}

@media (max-width: 1024px) {
  .homepage-container {
    flex-direction: column;
  }

  /* 移动端侧边栏：为fixed按钮预留空间 */
  .homepage-sidebar {
    width: 100% !important;
    height: auto !important;
    max-height: none !important;
    position: relative !important;
    top: auto !important;
    border: none !important;
    padding: 4rem 1rem 0.5rem 1rem !important; /* 顶部增加空间给fixed按钮 */
    margin: 0 !important;
    overflow-y: visible !important;
    overflow-x: hidden !important;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    z-index: 1 !important; /* 降低z-index，让fixed按钮显示在上方 */
    background: transparent !important;
  }

  /* 移动端隐藏PC端折叠按钮 */
  .sidebar-collapse-btn {
    display: none !important;
  }
  
  /* 确保移动端不显示折叠状态的按钮 */
  .sidebar-collapse-btn.collapsed {
    display: none !important;
  }

  /* 移动端完全禁用动态缩放类 */
  .homepage-sidebar.dynamic-scaling {
    overflow: visible;
    scrollbar-width: auto;
    -ms-overflow-style: auto;
  }

  .homepage-sidebar.dynamic-scaling::-webkit-scrollbar {
    display: block;
  }

  /* 移动端collapsed状态下的紧凑样式 */
  .homepage-sidebar.collapsed {
    margin-bottom: 0.25rem;
  }

  .homepage-main {
    padding: 1rem;
    position: relative !important; /* 为按钮提供定位上下文 */
    padding-top: 0.125rem !important; /* UI/UX极致优化：最小化顶部间距，实现紧凑布局 */
  }

  .content-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
  }
}

/* PC端专用动态缩放样式（仅在>1024px生效） */
@media (min-width: 1025px) {
  /* PC端动态缩放模式下禁用滚动条 */
  .homepage-sidebar.dynamic-scaling {
    overflow: hidden !important;
    scrollbar-width: none !important; /* Firefox */
    -ms-overflow-style: none !important; /* IE/Edge */
  }

  .homepage-sidebar.dynamic-scaling::-webkit-scrollbar {
    display: none !important; /* Chrome/Safari/Opera */
  }

}

@media (max-width: 768px) {
  .homepage-main {
    padding: 0.75rem;
  }

  .content-header {
    margin-bottom: 1rem;
  }

  .content-title {
    font-size: 1.375rem; /* 从1.5rem减小到1.375rem，移动端更协调 */
    margin-bottom: 0.5rem;
  }

  .content-subtitle {
    margin-bottom: 0.75rem;
  }

  /* 搜索区域移动端优化 */
  .search-section {
    padding: 0.875rem 1rem;
    margin-bottom: 1rem;
  }

  .search-row {
    flex-direction: column;
    gap: 0.875rem;
    align-items: stretch;
  }

  .search-input-wrapper {
    min-width: unset;
    width: 100%;
  }

  .filter-options {
    width: 100%;
    justify-content: center;
  }

  .filter-section {
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
  }

  .content-grid {
    grid-template-columns: 1fr;
  }

  /* 移动端无缩略图卡片优化 */
  .prompt-card.no-thumbnail {
    min-height: 260px; /* 移动端稍微减少高度 */
    padding: 0.875rem;
  }

  .prompt-card.no-thumbnail .card-title {
    font-size: 1rem; /* 移动端标题稍小 */
    margin-bottom: 0.625rem;
  }

  .prompt-card.no-thumbnail .card-description {
    -webkit-line-clamp: 3; /* 移动端减少描述行数 */
    font-size: 0.875rem;
    line-height: 1.5;
    /* 移动端描述与标签间距调整 */
    margin-bottom: 0.625rem;
  }

  /* 移动端有缩略图卡片优化 */
  .prompt-card.has-thumbnail .card-description {
    /* 移动端缩略图卡片描述间距优化 */
    margin-bottom: 0.875rem;
  }

  /* 移动端缩略图间距调整 */
  .prompt-card .card-content .card-thumbnail-area {
    margin: 0.875rem 0;
  }

  /* 移动端标签区域间距优化 */
  .prompt-card.has-thumbnail .card-tags {
    margin-top: 0.625rem;
  }

  .prompt-card {
    padding: 1rem;
    margin-bottom: 1rem;
  }

  /* 卡片内容移动端优化 */
  .prompt-card .card-title {
    font-size: 0.9rem; /* 从1rem减小到0.9rem，移动端更精致 */
    line-height: 1.4;
    margin-bottom: 0.5rem;
  }

  .prompt-card .card-description {
    font-size: 0.875rem;
    line-height: 1.5;
    margin-bottom: 0.75rem;
  }

  .prompt-card .card-footer {
    padding-top: 0.75rem;
  }

  .prompt-card .card-stats {
    gap: 0.75rem;
  }

  .prompt-card .card-actions {
    gap: 0.5rem;
  }
}

@media (max-width: 480px) {
  .homepage-main {
    padding: 0.5rem;
  }

  .sidebar-header {
    padding: 1.5rem 1rem 1rem;
  }
  
  .nav-link {
    padding: 0.75rem 1rem;
  }
  
  /* 搜索区域小屏幕优化 */
  .search-section {
    padding: 0.75rem;
    margin-bottom: 0.875rem;
  }

  .search-input-wrapper {
    min-width: unset;
    width: 100%;
  }

  .search-input {
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
  }
  
  .search-btn {
    padding: 0.5rem;
  }

  .filter-buttons {
    flex-wrap: wrap;
    justify-content: center;
  }

  .filter-btn {
    font-size: 0.8125rem;
    padding: 0 10px;
    height: 28px;
  }

  .content-header {
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
  }

  .content-title {
    font-size: 1.375rem;
  }

  .content-subtitle {
    font-size: 0.875rem;
  }

  /* 分页区域移动端优化 */
  .pagination-section {
    margin-top: 1rem;
    padding: 0.75rem 0;
  }

  .pagination-wrapper .pagination {
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.25rem;
  }

  .pagination-wrapper .page-item .page-link {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    min-width: 40px;
    text-align: center;
  }

  .pagination-info {
    font-size: 0.8125rem;
    margin-top: 0.75rem;
  }
}

/* 公告展示区域样式 */
.announcement-section {
  margin-bottom: 2rem;
  animation: slideDown 0.3s ease-out;
}

.announcement-card {
  background: var(--card-bg, #ffffff);
  border: 1px solid var(--border-color, #e8e8e8);
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  overflow: hidden;
  transition: all 0.3s ease;
}

.announcement-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.announcement-header {
  display: flex;
  align-items: center;
  padding: 1rem 1.5rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-bottom: 1px solid var(--border-color, #e8e8e8);
}

.announcement-icon {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 1rem;
  font-size: 1.2rem;
}

.announcement-title {
  flex: 1;
}

.announcement-title h5 {
  color: white;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.announcement-title small {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.875rem;
}

.announcement-actions {
  display: flex;
  gap: 0.5rem;
}

.announcement-actions .btn {
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: white;
  font-size: 0.875rem;
  padding: 0.375rem 0.75rem;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.announcement-actions .btn:hover {
  background: rgba(255, 255, 255, 0.3);
  border-color: rgba(255, 255, 255, 0.5);
  color: white;
  transform: translateY(-1px);
}

.announcement-content {
  padding: 1.5rem;
  color: var(--text-color, #333333);
  line-height: 1.6;
}

.announcement-content h1,
.announcement-content h2,
.announcement-content h3,
.announcement-content h4,
.announcement-content h5,
.announcement-content h6 {
  color: var(--text-primary, #1a1a1a);
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

.announcement-content h1:first-child,
.announcement-content h2:first-child,
.announcement-content h3:first-child,
.announcement-content h4:first-child,
.announcement-content h5:first-child,
.announcement-content h6:first-child {
  margin-top: 0;
}

.announcement-content p {
  margin-bottom: 1rem;
}

.announcement-content ul,
.announcement-content ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

.announcement-content li {
  margin-bottom: 0.5rem;
}

.announcement-content blockquote {
  border-left: 4px solid var(--primary-color, #1890ff);
  padding-left: 1rem;
  margin: 1rem 0;
  background: var(--background-light, #f8f9fa);
  padding: 1rem;
  border-radius: 0 6px 6px 0;
}

.announcement-content code {
  background: var(--background-light, #f8f9fa);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 0.875rem;
  color: var(--text-color, #333333);
}

.announcement-content pre {
  background: var(--background-light, #f8f9fa);
  padding: 1rem;
  border-radius: 6px;
  overflow-x: auto;
  margin: 1rem 0;
}

.announcement-content pre code {
  background: none;
  padding: 0;
}

.announcement-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
}

.announcement-content th,
.announcement-content td {
  border: 1px solid var(--border-color, #e8e8e8);
  padding: 0.75rem;
  text-align: left;
}

.announcement-content th {
  background: var(--background-light, #f8f9fa);
  font-weight: 600;
}

.announcement-content a {
  color: var(--primary-color, #1890ff);
  text-decoration: none;
  transition: color 0.2s ease;
}

.announcement-content a:hover {
  color: var(--primary-hover, #40a9ff);
  text-decoration: underline;
}

/* 公告动画 */
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 移动端公告样式适配 */
@media (max-width: 768px) {
  .announcement-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  
  .announcement-icon {
    margin-right: 0;
  }
  
  .announcement-actions {
    width: 100%;
    justify-content: flex-end;
  }
  
  .announcement-content {
    padding: 1rem;
  }
  
  .announcement-content h1,
  .announcement-content h2,
  .announcement-content h3 {
    font-size: 1.1rem;
  }
  
  .announcement-content h4,
  .announcement-content h5,
  .announcement-content h6 {
    font-size: 1rem;
  }
}


[data-theme="dark"] .announcement-content {
  color: var(--primary-color, #1890ff); /* 暗色主题下使用主色调 */
}

[data-theme="dark"] .announcement-content h1,
[data-theme="dark"] .announcement-content h2,
[data-theme="dark"] .announcement-content h3,
[data-theme="dark"] .announcement-content h4,
[data-theme="dark"] .announcement-content h5,
[data-theme="dark"] .announcement-content h6 {
  color: var(--primary-color, #1890ff); /* 暗色主题下使用主色调 */
}

[data-theme="dark"] .announcement-content blockquote {
  background: var(--background-light, #2a2a2a);
  border-left-color: var(--primary-color, #1890ff);
}

[data-theme="dark"] .announcement-content code {
  background: var(--background-light, #2a2a2a);
  color: var(--text-color, #e0e0e0);
}

[data-theme="dark"] .announcement-content pre {
  background: var(--background-light, #2a2a2a);
}

[data-theme="dark"] .announcement-content th {
  background: var(--background-light, #2a2a2a);
}

[data-theme="dark"] .announcement-content th,
[data-theme="dark"] .announcement-content td {
  border-color: var(--border-color, #333333);
}

/* ===== 首页公告预览样式 ===== */

/* 内容头部布局 */
.content-header {
  margin-bottom: 2rem;
}

.header-content {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 2rem;
  min-height: 120px;
}

.title-section {
  flex: 0 0 30%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* 搜索区域布局调整 */
.search-row {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.search-input-wrapper {
  flex: 1;
  min-width: 300px;
}

.filter-options {
  flex-shrink: 0;
}

/* 公告预览区域 - 位于标题右侧 */
.announcement-preview {
  flex: 0 0 70%;
  display: flex;
  align-items: center; /* 垂直居中对齐 */
  animation: slideInRight 0.3s ease-out;
}

.announcement-card {
  background: transparent;
  border: none;
  border-radius: 0;
  box-shadow: none;
  overflow: hidden;
  transition: all 0.3s ease;
  cursor: pointer;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center; /* 垂直居中 */
  align-items: center; /* 水平居中 */
  position: relative; /* 为绝对定位的关闭按钮提供定位上下文 */
}

.announcement-card:hover {
  transform: none;
  box-shadow: none;
  border-color: transparent;
}

/* 公告关闭按钮 */
.announcement-close {
  background: none;
  border: none;
  color: var(--text-color, #666666);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 50%;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  font-size: 0.8rem;
  position: absolute;
  top: 0.5rem;
  right: 1.5rem;
  opacity: 1; /* 始终可见 */
  z-index: 10; /* 确保在最顶层 */
}

.announcement-close:hover {
  background: rgba(0, 0, 0, 0.1);
  color: var(--text-color, #333333);
  transform: scale(1.1);
  opacity: 1;
}


/* 公告内容预览 */
.announcement-content {
  padding: 1rem;
  color: var(--primary-color, #3B82F6); /* 使用系统主色调，引起注意 */
  line-height: 1.5;
  font-size: 0.875rem; /* 从0.9rem减小到0.875rem，更精致 */
  overflow: hidden;
  position: relative;
  height: 80px; /* 固定高度 */
  max-height: 80px;
  width: 100%; /* 确保宽度占满 */
  display: block; /* 支持HTML内容正常显示 */
  text-align: left; /* 左对齐文本 */
  font-weight: 500; /* 稍微加粗字体以引起注意 */
}

/* 公告内容中的HTML标签样式 */
.announcement-content h1,
.announcement-content h2,
.announcement-content h3,
.announcement-content h4,
.announcement-content h5,
.announcement-content h6 {
  margin: 0 0 0.5rem 0;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary-color, #3B82F6); /* 使用系统主色调 */
}

.announcement-content p {
  margin: 0 0 0.5rem 0;
  font-size: 0.9rem;
  line-height: 1.4;
}

.announcement-content ul,
.announcement-content ol {
  margin: 0 0 0.5rem 0;
  padding-left: 1rem;
}

.announcement-content li {
  margin: 0 0 0.25rem 0;
  font-size: 0.85rem;
}

.announcement-content strong,
.announcement-content b {
  font-weight: 600;
  color: var(--primary-color, #3B82F6); /* 使用系统主色调 */
}

.announcement-content em,
.announcement-content i {
  font-style: italic;
}

.announcement-content code {
  background: var(--background-light, #f5f5f5);
  padding: 0.1rem 0.3rem;
  border-radius: 3px;
  font-family: 'Courier New', monospace;
  font-size: 0.8rem;
}

.announcement-content a {
  color: var(--primary-color, #1890ff);
  text-decoration: none;
}

.announcement-content a:hover {
  text-decoration: underline;
}

/* 滚动动画 */
.announcement-content.scrollable {
  animation: scrollUp 4s ease-in-out infinite;
}

.announcement-content.scrollable:hover {
  animation-play-state: paused;
}

/* 渐变遮罩效果 */
.announcement-content::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 20px;
  background: linear-gradient(transparent, var(--background-color, #ffffff));
  pointer-events: none;
  z-index: 1;
}

/* 滚动动画定义 */
@keyframes scrollUp {
  0% { 
    transform: translateY(0); 
  }
  50% { 
    transform: translateY(-30px); 
  }
  100% { 
    transform: translateY(0); 
  }
}


/* 公告动画 */
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* 移动端公告样式适配 */
@media (max-width: 1024px) {
  .header-content {
    gap: 1.5rem;
  }
  
  .title-section {
    flex: 0 0 35%;
  }
  
  .announcement-preview {
    flex: 0 0 65%;
  }
}

@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: 1rem;
    min-height: auto;
  }
  
  .title-section {
    flex: none;
    width: 100%;
  }
  
  .announcement-preview {
    flex: none;
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
  }
  
  .announcement-header {
    padding: 0.75rem;
  }
  
  .announcement-icon {
    width: 32px;
    height: 32px;
    font-size: 1rem;
    margin-right: 0.5rem;
  }
  
  .announcement-title {
    font-size: 0.9rem;
  }
  
  .announcement-date {
    font-size: 0.75rem;
  }
  
  .announcement-content {
    padding: 0.75rem;
    font-size: 0.85rem;
  }
  
  .announcement-footer {
    padding: 0.5rem 0.75rem;
  }
  
  .announcement-footer .btn {
    font-size: 0.75rem;
    padding: 0.4rem 0.6rem;
  }
}

@media (max-width: 480px) {
  .announcement-preview {
    max-width: 100%;
  }
  
  .announcement-footer {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .announcement-footer .btn {
    width: 100%;
  }
}

/* 公告模态框居中样式 */
#announcementModal .modal-dialog {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  margin: 0 auto;
  padding: 1rem;
  position: relative;
  width: 100%;
  max-width: 900px;
  z-index: 1055;
}

#announcementModal .modal-content {
  width: 100%;
  max-width: 900px;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  display: flex;
  flex-direction: column;
  max-height: 90vh;
  overflow: hidden;
}

/* 公告模态框头部样式 */
#announcementModal .modal-header {
  background: var(--surface-color, #fafafa);
  color: var(--text-primary, #262626);
  border: none;
  border-bottom: 1px solid var(--border-color, #f0f0f0);
  border-radius: 12px 12px 0 0;
  padding: 1.25rem 1.5rem;
  flex-shrink: 0;
}

#announcementModal .modal-header .modal-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
  display: flex;
  align-items: center;
}

#announcementModal .modal-header .modal-title i {
  margin-right: 0.5rem;
  font-size: 1.1rem;
}

#announcementModal .modal-header .btn-close {
  filter: none;
  opacity: 0.6;
  font-size: 1.2rem;
  color: var(--text-secondary, #8c8c8c);
}

#announcementModal .modal-header .btn-close:hover {
  opacity: 0.8;
  color: var(--text-primary, #262626);
}

/* 公告模态框主体样式 */
#announcementModal .modal-body {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
  background: var(--background-color, #ffffff);
}

/* 公告元信息样式 */
#announcementModal .announcement-meta {
  background: var(--background-light, #f8f9fa);
  padding: 0.75rem 1rem;
  border-radius: 8px;
  border-left: 4px solid var(--primary-color, #007bff);
  margin-bottom: 1.5rem;
}

#announcementModal .announcement-meta small {
  color: var(--text-muted, #6c757d);
  font-size: 0.875rem;
}

#announcementModal .announcement-meta i {
  color: var(--primary-color, #007bff);
  margin-right: 0.25rem;
}

/* 公告模态框内容样式 */
#announcementModal .announcement-content {
  line-height: 1.6;
  font-size: 1rem;
  color: var(--text-color, #333333);
  min-height: auto;
  max-height: none;
  overflow: visible;
  height: auto !important; /* 强制覆盖JavaScript设置的高度 */
}

#announcementModal .announcement-content h1,
#announcementModal .announcement-content h2,
#announcementModal .announcement-content h3,
#announcementModal .announcement-content h4,
#announcementModal .announcement-content h5,
#announcementModal .announcement-content h6 {
  margin: 1rem 0 0.5rem 0;
  font-weight: 600;
  color: var(--text-color, #333333);
}

#announcementModal .announcement-content h1 {
  font-size: 1.5rem;
}

#announcementModal .announcement-content h2 {
  font-size: 1.3rem;
}

#announcementModal .announcement-content h3 {
  font-size: 1.1rem;
}

#announcementModal .announcement-content p {
  margin: 0.5rem 0;
  line-height: 1.6;
}

#announcementModal .announcement-content ul,
#announcementModal .announcement-content ol {
  margin: 0.5rem 0;
  padding-left: 1.5rem;
}

#announcementModal .announcement-content li {
  margin: 0.25rem 0;
}

#announcementModal .announcement-content strong,
#announcementModal .announcement-content b {
  font-weight: 600;
  color: var(--text-color, #333333);
}

#announcementModal .announcement-content em,
#announcementModal .announcement-content i {
  font-style: italic;
}

#announcementModal .announcement-content code {
  background: var(--background-light, #f5f5f5);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 0.9rem;
  color: var(--text-color, #333333);
}

#announcementModal .announcement-content pre {
  background: var(--background-light, #f5f5f5);
  padding: 1rem;
  border-radius: 6px;
  overflow-x: auto;
  margin: 1rem 0;
}

#announcementModal .announcement-content pre code {
  background: none;
  padding: 0;
}

#announcementModal .announcement-content a {
  color: var(--primary-color, #1890ff);
  text-decoration: none;
}

#announcementModal .announcement-content a:hover {
  text-decoration: underline;
}

#announcementModal .announcement-content blockquote {
  border-left: 4px solid var(--primary-color, #1890ff);
  padding-left: 1rem;
  margin: 1rem 0;
  color: var(--text-secondary, #666666);
  font-style: italic;
}

/* 公告模态框底部样式 */
#announcementModal .modal-footer {
  background: var(--background-light, #f8f9fa);
  border: none;
  border-radius: 0 0 12px 12px;
  padding: 1.25rem 1.5rem;
  flex-shrink: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

#announcementModal .modal-footer .btn {
  padding: 0.75rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 8px;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

#announcementModal .modal-footer .btn-secondary {
  background: var(--surface-color, #fafafa);
  border: 1px solid var(--border-secondary, #d9d9d9);
  color: var(--text-secondary, #8c8c8c);
}

#announcementModal .modal-footer .btn-secondary:hover {
  background: var(--background-color, #ffffff);
  border-color: var(--border-color, #f0f0f0);
  color: var(--text-primary, #262626);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

#announcementModal .modal-footer .btn-primary {
  background: var(--primary-color, #3B82F6);
  border: 1px solid var(--primary-color, #3B82F6);
  color: white;
}

#announcementModal .modal-footer .btn-primary:hover {
  background: var(--primary-hover, #2563EB);
  border-color: var(--primary-hover, #2563EB);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

#announcementModal .modal-footer .btn i {
  font-size: 0.875rem;
}

#announcementModal .announcement-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
}

#announcementModal .announcement-content th,
#announcementModal .announcement-content td {
  border: 1px solid var(--border-color, #ddd);
  padding: 0.5rem;
  text-align: left;
}

#announcementModal .announcement-content th {
  background: var(--background-light, #f5f5f5);
  font-weight: 600;
}

/* 响应式调整 */
@media (max-width: 768px) {
  #announcementModal .modal-dialog {
    padding: 0.5rem;
  }
  
  #announcementModal .modal-content {
    max-height: 95vh;
  }
}