/* ============================================================
   KRONOS ZHOU · 知识库列表页样式（Cosmic 版）
   路径：knowledgelibrary/knowledge-library.css
   ------------------------------------------------------------
   ⚠️ 2026-10 改版后，列表页换成了三维书架（样式内联在
   knowledge-library.html 里），这份文件现在只服务于
   library-builder/library-builder.html 的预览区（它复用
   .know-item-* 那套横卡片）。旧列表页的完整外观存在
   _design-backup/pre-shelf_*/ 里，要回退时连同那段 HTML 一起取回。
   ------------------------------------------------------------
   设计语言：Cosmic —— 纯黑底 / 单色灰阶 + 冷蓝强调色（#4e85bf）/
   大圆角卡片 / 玻璃拟态胶囊 / 克制的 hover 位移。
   变量来自 main-page.css 的 :root（每个页面先加载它，再加载本文件）。

   ⚠️ 与 tools/tool-list.css、vibecoding/vibecoding-list.css 同构（同一套横卡片），
   但所有卡片 class 用 know-item-* 命名，避免三份列表页样式互相污染
   （也避开 main-page.css 的 .tool-card）。
   ⚠️ 类名是 library-builder.js / 建库页 HTML 共用的契约，
   只能改样式，不能改名、不能删规则。
   ============================================================ */

/* ⚠️ 覆盖 main-page.css 里 .app-root 的 grid 布局 */
html body .app-root {
  display: flex !important;
  flex-direction: column !important;
  height: auto !important;
  min-height: 100vh;
  grid-template-rows: none !important;
}

/* ============================================================
   页面标题
   ------------------------------------------------------------
   近黑玻璃面板 + 一圈极淡的冷蓝内晕，不用霓虹光斑。
   ============================================================ */
.page-hero {
  margin: 1.6rem 0 1.6rem;
  padding: 2.4rem 2rem;
  border-radius: 1.5rem;
  border: 1px solid hsl(var(--stroke));
  background:
    radial-gradient(circle at 18% 24%, rgba(var(--accent-rgb), 0.12), transparent 58%),
    radial-gradient(circle at 88% 96%, rgba(var(--accent-rgb), 0.07), transparent 62%),
    hsl(var(--surface));
  box-shadow: var(--shadow-block);
  position: relative;
  overflow: hidden;
}

/* 上沿一道极细的高光，替代原来的斜向白光 */
.page-hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 2rem;
  right: 2rem;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.14), transparent);
  pointer-events: none;
}

/* 拉丁装饰字体只落在英文上；中文由 --font-display 里的宋体回退接住 */
.page-hero-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(2.1rem, 5vw, 2.9rem);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.01em;
  background: linear-gradient(120deg, hsl(var(--text)) 30%, var(--grad-from) 120%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: hsl(var(--text));
  margin-bottom: 0.5rem;
}

.page-hero-subtitle {
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.32em;
  color: hsl(var(--muted));
  text-transform: uppercase;
}

.know-hero-desc {
  margin-top: 1rem;
  font-size: 0.9rem;
  line-height: 1.75;
  color: hsl(var(--muted));
  max-width: 46rem;
}

/* ============================================================
   过滤工具栏：搜索 + 标签 + 计数
   ============================================================ */
/* 别名组：know-* 与共享层 index-* 两套命名都吃这套外观。
   .index-page .index-* 只在 <body class="index-page"> 的页面里生效，
   裸 .index-* 的基础样式留在 shared/index-page.css，这里不重复定义。 */
.know-toolbar,
.index-page .index-toolbar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-bottom: 1.4rem;
  padding: 1rem 1.2rem;
  border-radius: var(--radius-md);
  border: 1px solid hsl(var(--stroke));
  background: hsl(var(--surface));
  box-shadow: var(--shadow-block);
}

/* 搜索框 */
.know-search-box,
.index-page .index-search {
  position: relative;
  display: flex;
  align-items: center;
  flex: 1 1 18rem;
  min-width: 14rem;
}

.know-search-icon {
  position: absolute;
  left: 0.9rem;
  font-size: 0.9rem;
  opacity: 0.55;
  pointer-events: none;
}

.know-search-input,
.index-page .index-search-input {
  width: 100%;
  padding: 0.62rem 2.4rem 0.62rem 2.4rem;
  border-radius: 999px;
  border: 1px solid hsl(var(--stroke));
  background: var(--bg-elevated);
  color: hsl(var(--text));
  font: inherit;
  font-size: 0.9rem;
  transition: border-color 260ms cubic-bezier(0.2, 0.9, 0.4, 1),
              box-shadow 260ms cubic-bezier(0.2, 0.9, 0.4, 1),
              background 260ms cubic-bezier(0.2, 0.9, 0.4, 1);
}

.know-search-input::placeholder {
  color: hsl(var(--muted));
}

.know-search-input:focus {
  outline: none;
  border-color: rgba(var(--accent-rgb), 0.45);
  background: var(--bg-block);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.know-search-clear,
.index-page .index-search-clear {
  position: absolute;
  right: 0.6rem;
  appearance: none;
  border: none;
  background: transparent;
  color: hsl(var(--muted));
  cursor: pointer;
  font-size: 0.85rem;
  line-height: 1;
  padding: 0.35rem;
  border-radius: 999px;
  transition: color 260ms cubic-bezier(0.2, 0.9, 0.4, 1),
              background 260ms cubic-bezier(0.2, 0.9, 0.4, 1);
}

.know-search-clear:hover {
  color: hsl(var(--text));
  background: var(--bg-block-hover);
}

/* 标签筛选 chip */
.know-tag-filter,
.index-page .index-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.know-chip,
.index-page .index-chip {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid hsl(var(--stroke));
  background: var(--bg-elevated);
  color: hsl(var(--muted));
  font: inherit;
  font-size: 0.8rem;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: border-color 260ms cubic-bezier(0.2, 0.9, 0.4, 1),
              color 260ms cubic-bezier(0.2, 0.9, 0.4, 1),
              background 260ms cubic-bezier(0.2, 0.9, 0.4, 1),
              transform 260ms cubic-bezier(0.2, 0.9, 0.4, 1);
}

.know-chip:hover,
.index-page .index-chip:hover {
  border-color: rgba(var(--accent-rgb), 0.45);
  color: hsl(var(--text));
  transform: translateY(-1px);
}

/* 选中态：强调色渐变底 + 近黑字（Cosmic 的胶囊定式）
   别名用 .index-chip.is-active（共享层是 is-active，本页是 active） */
.know-chip.active,
.index-page .index-chip.is-active {
  border-color: transparent;
  background: linear-gradient(135deg, var(--grad-from), var(--grad-to));
  color: hsl(var(--bg));
  font-weight: 600;
}

.know-chip-count,
.index-page .index-chip-count {
  font-size: 0.7rem;
  font-variant-numeric: tabular-nums;
  padding: 0.05rem 0.4rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
}

.know-chip.active .know-chip-count,
.index-page .index-chip.is-active .index-chip-count {
  background: rgba(0, 0, 0, 0.22);
}

.know-count,
.index-page .index-count {
  margin-left: auto;
  font-size: 0.8rem;
  color: hsl(var(--muted));
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* ============================================================
   「建立知识库」入口按钮
   ------------------------------------------------------------
   放在工具栏最右边（和计数同一行），点进 library-builder/。
   未登录也能点 —— 自建库页面允许先在本机建，登录后再同步。
   ============================================================ */
.know-entry-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.6rem 1.1rem;
  border-radius: 999px;
  border: 1px solid transparent;
  background: linear-gradient(135deg, var(--grad-from), var(--grad-to));
  color: hsl(var(--bg));
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-decoration: none;
  white-space: nowrap;
  box-shadow: 0 10px 24px -16px rgba(var(--accent-rgb), 0.7);
  transition: transform 260ms cubic-bezier(0.2, 0.9, 0.4, 1),
              filter 260ms cubic-bezier(0.2, 0.9, 0.4, 1),
              box-shadow 260ms cubic-bezier(0.2, 0.9, 0.4, 1);
}

.know-entry-btn:hover {
  filter: brightness(1.08);
  box-shadow: 0 16px 30px -18px rgba(var(--accent-rgb), 0.85);
  transform: translateY(-2px);
}

.know-entry-icon {
  font-size: 1rem;
  line-height: 1;
}

/* ============================================================
   我的自建库（登录后才显示）
   ============================================================ */
.know-mine-section {
  margin-bottom: 2.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.know-mine-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.know-mine-title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: hsl(var(--text));
}

.know-mine-note {
  font-size: 0.8rem;
  color: hsl(var(--muted));
  font-variant-numeric: tabular-nums;
}

.know-mine-list {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

/* 我的自建库卡片：沿用横卡片结构，左侧加一条状态色带做区分 */
.know-mine-item {
  border-left: 3px solid var(--accent);
}

.know-mine-empty {
  padding: 1.2rem 1rem;
  border-radius: 1.25rem;
  border: 1px dashed hsl(var(--stroke));
  background: hsl(var(--surface));
  color: hsl(var(--muted));
  font-size: 0.88rem;
  text-align: center;
  line-height: 1.75;
}

.know-mine-reason {
  margin: -0.3rem 0 0.4rem;
  padding: 0.6rem 0.8rem;
  border-radius: 0.75rem;
  border-left: 3px solid var(--danger);
  background: var(--danger-soft);
  color: hsl(var(--text) / 0.86);
  font-size: 0.86rem;
  line-height: 1.7;
  white-space: pre-wrap;
}

.know-mine-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.know-mine-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  border: 1px solid hsl(var(--stroke));
  background: var(--bg-block);
  color: hsl(var(--text));
  font-family: inherit;
  font-size: 0.84rem;
  cursor: pointer;
  text-decoration: none;
  transition: border-color 260ms cubic-bezier(0.2, 0.9, 0.4, 1),
              background 260ms cubic-bezier(0.2, 0.9, 0.4, 1),
              color 260ms cubic-bezier(0.2, 0.9, 0.4, 1),
              transform 260ms cubic-bezier(0.2, 0.9, 0.4, 1);
}

.know-mine-btn:hover {
  border-color: rgba(var(--accent-rgb), 0.45);
  background: var(--bg-block-hover);
  transform: translateY(-1px);
}

.know-mine-btn.is-link {
  border-style: dashed;
}

/* ============================================================
   知识库列表容器
   ============================================================ */
.know-list-section {
  margin-bottom: 3rem;
}

.know-list,
.index-page .index-grid {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

/* ============================================================
   知识库条目（横卡片）
   ------------------------------------------------------------
   近黑面板 + 1px 描边；hover / 展开只换描边色 + 轻微上浮，
   不用外发光（克制才是 Cosmic）。
   ============================================================ */
.know-item {
  position: relative;
  background: hsl(var(--surface));
  border: 1px solid hsl(var(--stroke));
  border-radius: 1.25rem;
  box-shadow: var(--shadow-block);
  overflow: hidden;
  transition: border-color 260ms cubic-bezier(0.2, 0.9, 0.4, 1),
              box-shadow 260ms cubic-bezier(0.2, 0.9, 0.4, 1),
              transform 260ms cubic-bezier(0.2, 0.9, 0.4, 1),
              background 260ms cubic-bezier(0.2, 0.9, 0.4, 1);
}

/* 上沿高光：hover / 展开时点亮 */
.know-item::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent 42%);
  pointer-events: none;
  opacity: 0.5;
  transition: opacity 260ms cubic-bezier(0.2, 0.9, 0.4, 1);
}

.know-item:hover {
  border-color: rgba(var(--accent-rgb), 0.45);
  background: var(--bg-block);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.know-item.expanded {
  border-color: rgba(var(--accent-rgb), 0.45);
  background: var(--bg-block);
  box-shadow: var(--shadow-hover);
}

.know-item:hover::after,
.know-item.expanded::after {
  opacity: 1;
}

/* ============================================================
   条目头部 —— 用 <button> 渲染
   ============================================================ */
.know-item-header {
  appearance: none;
  -webkit-appearance: none;
  border: none;
  background: transparent;
  font: inherit;
  color: inherit;
  text-align: left;
  cursor: pointer;
  user-select: none;
  width: 100%;

  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.2rem;
  padding: 1.1rem 1.5rem;

  position: relative;
  z-index: 1;
  transition: background 260ms cubic-bezier(0.2, 0.9, 0.4, 1);
}

.know-item-header:hover {
  background: rgba(var(--accent-rgb), 0.05);
}

.know-item-header:focus-visible {
  outline: 2px solid rgba(var(--accent-rgb), 0.6);
  outline-offset: -2px;
}

/* 图标 */
.know-item-icon {
  width: 48px;
  height: 48px;
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(var(--accent-rgb), 0.12);
  border: 1px solid hsl(var(--stroke));
  font-size: 1.6rem;
  flex-shrink: 0;
  transition: transform 260ms cubic-bezier(0.2, 0.9, 0.4, 1),
              background 260ms cubic-bezier(0.2, 0.9, 0.4, 1),
              border-color 260ms cubic-bezier(0.2, 0.9, 0.4, 1);
  overflow: hidden;
}

.know-item-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.know-item-header:hover .know-item-icon {
  transform: scale(1.05);
  background: rgba(var(--accent-rgb), 0.2);
  border-color: rgba(var(--accent-rgb), 0.45);
}

/* 标题 */
.know-item-titles {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}

.know-item-title-cn {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: hsl(var(--text));
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.know-item-title-en {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: hsl(var(--muted));
  text-transform: uppercase;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 右侧标签 */
.know-item-tags {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.know-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

/* ============================================================
   知识库标签
   ------------------------------------------------------------
   文案由 knowledge-meta-data.json 的 tag 字段决定（有且只有一个），
   取值 → 样式类：redirect → tag-redirect / reference → tag-reference
                collection → tag-collection / database → tag-database
                guide → tag-guide
   配色：以灰阶为主，只在描边上点一点色相 —— 近单色。
   ============================================================ */
.know-tag.tag-redirect {
  background: rgba(78, 133, 191, 0.08);
  color: hsl(var(--text) / 0.82);
  border: 1px solid rgba(137, 170, 204, 0.3);
}

.know-tag.tag-reference {
  background: rgba(var(--accent-rgb), 0.12);
  color: var(--accent-solid-soft);
  border: 1px solid rgba(var(--accent-rgb), 0.35);
}

.know-tag.tag-collection {
  background: rgba(168, 121, 240, 0.08);
  color: rgba(205, 181, 246, 0.92);
  border: 1px solid rgba(168, 121, 240, 0.26);
}

.know-tag.tag-database {
  background: rgba(74, 222, 128, 0.08);
  color: rgba(134, 222, 168, 0.92);
  border: 1px solid rgba(74, 222, 128, 0.24);
}

.know-tag.tag-guide {
  background: rgba(245, 158, 11, 0.08);
  color: rgba(233, 186, 112, 0.92);
  border: 1px solid rgba(245, 158, 11, 0.24);
}

.know-tag.tag-unknown {
  background: var(--bg-elevated);
  color: hsl(var(--muted));
  border: 1px dashed hsl(var(--stroke));
}

.know-tag.tag-version {
  background: var(--bg-elevated);
  color: hsl(var(--muted));
  border: 1px solid hsl(var(--stroke));
  font-variant-numeric: tabular-nums;
}

.know-tag.tag-count {
  background: var(--bg-elevated);
  color: hsl(var(--muted));
  border: 1px solid hsl(var(--stroke));
  font-variant-numeric: tabular-nums;
}

/* 「我的自建库」的状态标签（待审核 / 正在建库中 / 已驳回） */
.know-tag.is-pending {
  background: var(--warn-soft);
  color: rgba(233, 186, 112, 0.95);
  border: 1px solid rgba(245, 158, 11, 0.38);
}

.know-tag.is-approved {
  background: var(--success-soft);
  color: rgba(134, 222, 168, 0.95);
  border: 1px solid rgba(74, 222, 128, 0.38);
}

.know-tag.is-rejected {
  background: var(--danger-soft);
  color: rgba(240, 150, 150, 0.95);
  border: 1px solid rgba(239, 68, 68, 0.42);
}

.know-item-arrow {
  font-size: 0.75rem;
  color: hsl(var(--muted));
  margin-left: 0.4rem;
  transition: transform 320ms cubic-bezier(0.2, 0.9, 0.4, 1),
              color 260ms cubic-bezier(0.2, 0.9, 0.4, 1);
  flex-shrink: 0;
  display: inline-block;
}

.know-item.expanded .know-item-arrow {
  transform: rotate(180deg);
  color: var(--accent-solid-soft);
}

.know-item-header:hover .know-item-arrow {
  color: var(--accent-solid-soft);
}

/* ============================================================
   条目展开区域
   ============================================================ */
.know-item-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 400ms cubic-bezier(0.2, 0.9, 0.4, 1),
              opacity 300ms cubic-bezier(0.2, 0.9, 0.4, 1),
              padding 350ms cubic-bezier(0.2, 0.9, 0.4, 1);
  opacity: 0;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

.know-item.expanded .know-item-body {
  max-height: 640px;
  opacity: 1;
  padding: 0 1.5rem 1.4rem;
}

/* 展开时头部和正文之间浮出一条渐隐分隔线 */
.know-item-body::before {
  content: '';
  position: absolute;
  top: 0;
  left: 1.5rem;
  right: 1.5rem;
  height: 1px;
  background: linear-gradient(90deg, rgba(var(--accent-rgb), 0.4), transparent 72%);
  opacity: 0;
  transition: opacity 300ms cubic-bezier(0.2, 0.9, 0.4, 1) 0.1s;
}

.know-item.expanded .know-item-body::before {
  opacity: 1;
}

.know-item-desc {
  font-size: 0.92rem;
  line-height: 1.75;
  color: hsl(var(--muted));
  margin: 1rem 0 0.8rem;
  letter-spacing: 0.01em;
}

.know-item-author {
  font-size: 0.82rem;
  color: hsl(var(--muted));
  letter-spacing: 0.02em;
  margin-bottom: 1.2rem;
}

.know-item-author::before {
  content: '维护 · ';
  color: hsl(var(--muted));
  opacity: 0.7;
}

.know-item-enter {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.6rem;
  border-radius: 999px;
  border: 1px solid transparent;
  background: linear-gradient(135deg, var(--grad-from), var(--grad-to));
  color: hsl(var(--bg));
  cursor: pointer;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-decoration: none;
  box-shadow: 0 10px 24px -16px rgba(var(--accent-rgb), 0.75);
  transition: transform 260ms cubic-bezier(0.2, 0.9, 0.4, 1),
              filter 260ms cubic-bezier(0.2, 0.9, 0.4, 1),
              box-shadow 260ms cubic-bezier(0.2, 0.9, 0.4, 1);
}

.know-item-enter:hover {
  filter: brightness(1.08);
  box-shadow: 0 16px 30px -18px rgba(var(--accent-rgb), 0.9);
  transform: translateY(-2px);
}

.know-item-enter:active {
  transform: translateY(0) scale(0.97);
}

.know-item-enter::after {
  content: '→';
  font-size: 1rem;
  transition: transform 260ms cubic-bezier(0.2, 0.9, 0.4, 1);
}

.know-item-enter:hover::after {
  transform: translateX(4px);
}

/* ============================================================
   空状态
   ============================================================ */
.know-list-empty,
.index-page .index-empty {
  text-align: center;
  color: hsl(var(--muted));
  font-size: 0.95rem;
  padding: 3rem 1rem;
  background: hsl(var(--surface));
  border: 1px dashed hsl(var(--stroke));
  border-radius: 1.25rem;
}

/* ============================================================
   页脚推到最底部
   ============================================================ */
.site-footer {
  margin-top: auto;
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 900px) {
  .page-hero {
    padding: 1.8rem 1.4rem;
  }

  .page-hero::after {
    left: 1.4rem;
    right: 1.4rem;
  }

  .page-hero-title {
    font-size: 2rem;
  }

  .page-hero-subtitle {
    font-size: 0.76rem;
    letter-spacing: 0.24em;
  }

  .know-toolbar {
    padding: 0.9rem 1rem;
  }

  .know-count,
  .index-page .index-count {
    margin-left: 0;
    width: 100%;
  }

  .know-item-header {
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
    gap: 0.8rem 1rem;
    padding: 1rem 1.2rem;
  }

  .know-item-tags {
    grid-column: 1 / -1;
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  /* 窄屏把箭头拎到右上角（旋转位移一起写，避免覆盖回正） */
  .know-item-arrow {
    position: absolute;
    top: 1.2rem;
    right: 1.2rem;
    margin-left: 0;
    transform: translateX(0);
  }

  .know-item.expanded .know-item-arrow {
    transform: translateX(0) rotate(180deg);
  }

  .know-item-body::before {
    left: 1.2rem;
    right: 1.2rem;
  }

  .know-item.expanded .know-item-body {
    padding: 0 1.2rem 1.2rem;
  }
}

@media (max-width: 520px) {
  .know-item-icon {
    width: 42px;
    height: 42px;
    font-size: 1.4rem;
  }

  .know-item-title-cn {
    font-size: 0.98rem;
  }

  .know-item-title-en {
    font-size: 0.72rem;
  }

  .know-tag {
    font-size: 0.68rem;
    padding: 0.2rem 0.6rem;
  }

  .know-item-enter {
    width: 100%;
    justify-content: center;
  }
}