/* 栏目列表页核心样式 - 加分割线+整体美化 */
.content-wrapper {
  padding: 3rem 0;
  position: relative;
  z-index: 20;
}
.main-content {
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(8px);
  border-radius: 12px;
  box-shadow: 0 4px 18px rgba(134, 86, 170, .06);
  padding: 32px;
  border: none;
}
.sidebar-menu {
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(8px);
  border-radius: 12px;
  box-shadow: 0 4px 18px rgba(134, 86, 170, .06);
  padding: 28px;
  border: none;
  height: fit-content;
}
/* 面包屑 */
/* ========== 美化面包屑导航 - 优化版 ========== */
.breadcrumb {
  padding: 14px 18px !important;
  margin-bottom: 0 !important;
  font-size: 15px !important;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap; /* 小屏幕自动换行 */
  background: rgba(255,255,255,.95) !important;
  border-radius: 8px !important;
  box-shadow: 0 1px 3px rgba(0,0,0,.05) !important;
  border: 1px solid rgba(0,0,0,.05) !important;
}
.breadcrumb-item + .breadcrumb-item::before {
  content: " / " !important; /* 更美观的分隔符 */
  color: #bbb !important;
  font-weight: 400;
  padding: 0 4px;
}
.breadcrumb a {
  color: #555 !important;
  text-decoration: none !important;
  transition: all 0.25s ease;
  padding: 2px 4px;
  border-radius: 4px;
}
.breadcrumb a:hover {
  color: var(--primary) !important;
  background: rgba(134,86,170,.06) !important;
  transform: translateY(-1px);
}
.breadcrumb .active {
  color: #222 !important;
  font-weight: 600 !important;
  max-width: 60%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
/* 页面主标题（黑色 + 专属分割线） */
/* 主标题：左侧紫色竖线 + 底部灰色线 */
.page-title {
  font-size: 22px;
  font-weight: 700;
  color: #000 !important;
  padding-left: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid #e8e8e8;
  margin-bottom: 28px;
  position: relative;
}
.page-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 12px;
  width: 4px;
  background-color: var(--primary);
  border-radius: 2px;
}

/* 右侧子栏目菜单 */
.sidebar-menu .list-group-item {
  border: none;
  padding: 11px 16px;
  color: #333;
  border-radius: 6px;
  margin-bottom: 8px;
  transition: all 0.2s ease;
  font-size: 18px;
}
.sidebar-menu .list-group-item.active {
  background-color: var(--primary-transparent15);
  color: var(--primary);
  font-weight: 600;
}
.sidebar-menu .list-group-item:hover {
  background-color: var(--primary-transparent15);
  color: var(--primary);
}

/* 卡片项 - 保留所有动画 */
.list-img-item {
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  z-index: 1;
  border-radius: 8px;
  overflow: hidden;
  height: 100%;
}
.list-img-item::before,
.list-img-item::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border: 2px solid transparent;
  transition: all 0.4s ease;
  z-index: -1;
  border-radius: 8px;
}
.list-img-item::before {
  border-top-color: var(--primary);
  border-right-color: var(--primary);
  transform-origin: top right;
  transform: scale(0, 0);
}
.list-img-item::after {
  border-bottom-color: var(--primary);
  border-left-color: var(--primary);
  transform-origin: bottom left;
  transform: scale(0, 0);
}
.list-img-item:hover::before,
.list-img-item.active::before {
  transform: scale(1, 1);
}
.list-img-item:hover::after,
.list-img-item.active::after {
  transform: scale(1, 1);
  transition-delay: 0.2s;
}
.list-img-item:hover {
  background-color: rgba(255,255,255,0.8);
}

/* 顶部大图 */
.img-box {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  z-index: 1;
}
.img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.list-img-item:hover .img-box img {
  transform: scale(1.08);
}

/* 卡片内容区 */
.img-content {
  padding: 16px;
  flex: 1;
  z-index: 1;
  display: flex;
  flex-direction: column;
}
/* 标题 */
.img-content h5 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: #000 !important;
  position: relative;
  display: inline-block;
}
/* 标题下划线动画 - 保留 */
.img-content h5::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 0;
  height: 2px;
  background-color: var(--primary);
  transition: width 0.3s ease;
}
.list-img-item:hover h5::after,
.list-img-item.active h5::after {
  width: 100%;
}
/* 描述 */
.img-content p {
  color: #666;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: 16px !important;
  margin: 0 0 10px 0;
}
/* 底部时间 */
.img-date {
  color: var(--primary);
  font-size: 14px;
  margin-top: auto;
  font-weight: 500;
}

/* 紫色分页 */
.pagination {
  margin-top: 30px;
  justify-content: center;
}
.pagination .page-link {
  color: var(--primary) !important;
  border: 1px solid var(--primary-transparent25) !important;
  border-radius: 4px !important;
  margin: 0 4px;
  padding: 7px 14px;
  font-size: 18px;
}
.pagination .page-item.active .page-link {
  background-color: var(--primary) !important;
  border-color: var(--primary) !important;
  color: #fff !important;
}
.pagination .page-link:hover {
  background-color: var(--primary-transparent15) !important;
  color: var(--primary-dark) !important;
}
.pagination .page-item.disabled .page-link {
  color: #999 !important;
  border-color: #eee !important;
  background: #f9f9f9;
}