/* 页脚与头图透明 */
#footer {
  background: transparent !important;
}
#page-header {
  background: transparent !important;
}

/* 白天模式遮罩透明 */
#footer::before {
  background: transparent !important;
}
#page-header::before {
  background: transparent !important;
}

/* 夜间模式遮罩透明 */
[data-theme="dark"] #footer::before {
  background: transparent !important;
}
[data-theme="dark"] #page-header::before {
  background: transparent !important;
}

/* 一级菜单居中 */
#nav .menus_items {
  position: absolute !important;
  width: fit-content !important;
  left: 50% !important;
  transform: translateX(-50%) !important;
}
/* 背景宇宙星光 */
#universe{
  display: block !important;
  position: fixed;
  margin: 0;
  padding: 0;
  border: 0;
  outline: 0;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

#body-wrap {
  position: relative;
  z-index: 1;
}

#footer-runtime {
  display: inline-block;
  margin-left: 6px;
}

.footer-runtime-separator {
  margin: 0 6px;
}

@media screen and (max-width: 768px) {
  #footer-runtime {
    display: block;
    margin-left: 0;
    margin-top: 4px;
  }

  .footer-runtime-separator {
    display: none;
  }
}

/* 栏目目录页 */
.knowledge-page {
  display: grid;
  grid-template-columns: minmax(200px, 260px) minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}

#content-inner.layout.hide-aside {
  width: min(92vw, 1240px);     /* 宽度修改 */
  max-width: 1240px;
}

#content-inner.hide-aside #page {
  width: 100%;
  max-width: none;
}

#content-inner.hide-aside #page .container {
  padding: 42px 48px;
}

.knowledge-sidebar {
  position: sticky;
  top: 88px;
  max-height: calc(100vh - 120px);
  overflow: auto;
  padding-right: 12px;
  border-right: 1px solid rgba(128, 128, 128, 0.18);
}

.knowledge-sidebar-title {
  margin-bottom: 16px;
  font-size: 1.05rem;
  font-weight: 700;
}

.knowledge-tree,
.knowledge-tree ul {
  margin: 0;
  padding-left: 0;
  list-style: none;
}

.knowledge-tree li {
  margin: 8px 0;
}

.knowledge-tree a,
.knowledge-tree summary {
  color: var(--font-color);
  cursor: pointer;
  line-height: 1.7;
}

.knowledge-tree > li > a,
.knowledge-tree summary {
  font-weight: 700;
}

.knowledge-tree a:hover,
.knowledge-tree summary:hover {
  color: var(--theme-color);
}

.knowledge-tree a.active {
  color: var(--theme-color);
  font-weight: 700;
}

.knowledge-tree ul {
  margin-top: 6px;
  padding-left: 18px;
}

.knowledge-content {
  min-width: 0;
}

.knowledge-section-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin: -4px 0 28px;
  color: #9a9a9a;
  font-size: 0.95rem;
  line-height: 1.8;
}

.knowledge-section-meta i {
  margin-right: 6px;
  color: #7890a0;
}

.knowledge-section-meta .knowledge-meta-separator {
  color: #c0c0c0;
}

.knowledge-content > section {
  display: none !important;
  padding-bottom: 28px;
  margin-bottom: 28px;
  scroll-margin-top: 96px;
}

.knowledge-content > section.active {
  display: block !important;
}

.knowledge-content > section:not(.active) {
  display: none !important;
}

.knowledge-content > section:target {
  animation: knowledgeTarget 1.2s ease;
}

.knowledge-content .resource-list {
  padding-left: 1.1rem;
}

.knowledge-content .inline-resource-list a {
  color: inherit;
  border-bottom: 1px dashed rgba(128, 128, 128, 0.45);
}

.knowledge-content .pdf-preview {
  width: 100%;
  height: clamp(980px, 120vh, 1280px);
  margin-top: 16px;
  border: 1px solid rgba(128, 128, 128, 0.22);
  border-radius: 8px;
  background: rgba(128, 128, 128, 0.06);
}

#article-container .knowledge-content pre.code-sample {
  overflow-x: auto;
  margin: 16px 0 28px;
  padding: 18px;
  border: 1px solid rgba(128, 128, 128, 0.22);
  border-radius: 8px;
  background: rgba(128, 128, 128, 0.06);
  color: var(--font-color);
  font-size: 13px;
  line-height: 1.65;
}

#article-container .knowledge-content pre.code-sample code {
  display: block;
  padding: 0;
  background: transparent;
  color: inherit;
  white-space: pre;
}

/* Projects 页表格表头不折行，避免“顺序”被拆成两行 */
#article-container .knowledge-content table th {
  white-space: nowrap;
}

/* Projects 页普通代码块与 code-sample 保持一致的浅灰底 */
#article-container .knowledge-content pre,
#article-container .knowledge-content figure.highlight {
  border: 1px solid rgba(128, 128, 128, 0.22);
  border-radius: 8px;
  background: rgba(128, 128, 128, 0.06);
  color: var(--font-color);
}

#article-container .knowledge-content pre code,
#article-container .knowledge-content figure.highlight code {
  background: transparent;
  color: inherit;
  text-shadow: none;
}

.about-page {
  max-width: 860px;
  margin: 0 0 0 79px;
}

.about-card {
  display: flex;
  gap: 48px;
  align-items: center;
  padding: 24px 0;
}

#article-container .about-avatar {
  display: block;
  width: 315px;
  height: 315px;
  margin: 0;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
}

.about-body h2 {
  margin: 0 0 10px;
  font-size: 1.7rem;
  font-family: "Commercial Script BT", "CommercialScript BT", "Palace Script MT",
    "French Script MT", "Segoe Script", cursive, serif;
}

.about-body {
  min-width: 0;
  text-align: left;
}

.about-quote {
  margin: 0 0 22px;
}

.about-quote-cn {
  margin: 0;
  font-size: 1.8rem;
  font-weight: 500;
  line-height: 1.55;
  color: var(--font-color);
  font-family: "STXingkai", "华文行楷", "KaiTi", "楷体",
    "LXGW WenKai Screen", "霞鹜文楷", "Noto Serif SC", "Source Han Serif SC",
    "Songti SC", "SimSun", "Microsoft YaHei", serif;
}

.about-quote-en {
  display: inline-block;
  margin-top: 2px;
  font-family: "Commercial Script BT", "CommercialScript BT", "Palace Script MT",
    "French Script MT", "Segoe Script", "Vivaldi", cursive, serif;
  font-size: 2.25rem;
  line-height: 1.25;
  color: rgba(128, 128, 128, 0.85);
}

.about-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.about-links a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 14px;
  border: 1px solid rgba(128, 128, 128, 0.28);
  border-radius: 999px;
  color: var(--font-color);
}

.about-links a:hover {
  color: var(--theme-color);
  border-color: var(--theme-color);
}

/* 分页省略号与其他翻页按钮一致，显示白底方块 */
#pagination .pagination > .space {
  background: var(--card-bg);
  border-radius: 8px;
  box-shadow: var(--card-box-shadow);
}

/* Home 文章卡片元信息：日期一行，分类一行，隐藏标签 */
#recent-posts .article-meta-wrap {
  display: flex;
  flex-wrap: wrap;
  row-gap: 6px;
  align-items: center;
}

#recent-posts .article-meta-wrap > .post-meta-date {
  flex: 0 0 100%;
}

#recent-posts .article-meta-wrap > .article-meta {
  flex: 0 0 100%;
}

#recent-posts .article-meta-wrap > .article-meta.tags {
  display: none;
}

#recent-posts .article-meta-wrap > .article-meta:first-of-type .article-meta-separator:first-child {
  display: none;
}

@keyframes knowledgeTarget {
  from {
    background: rgba(73, 177, 245, 0.14);
  }
  to {
    background: transparent;
  }
}

@media screen and (max-width: 768px) {
  .knowledge-page {
    display: block;
  }

  .knowledge-sidebar {
    position: static;
    max-height: none;
    margin-bottom: 28px;
    padding-right: 0;
    padding-bottom: 18px;
    border-right: 0;
    border-bottom: 1px solid rgba(128, 128, 128, 0.18);
  }

  #content-inner.hide-aside #page .container {
    padding: 28px 20px;
  }

  .knowledge-content .pdf-preview {
    height: 78vh;
  }

  .about-page {
    margin-left: -50px;
  }

  .about-card {
    display: block;
    text-align: center;
    padding: 24px 8px;
  }

  .about-avatar {
    width: 220px;
    height: 220px;
    margin-bottom: 18px;
  }

  .about-links {
    justify-content: center;
  }
}

/* ============ Moments 侧边日期：未选中浅色、选中变深 ============ */
.moments-knowledge .knowledge-tree a {
  color: #9aa1a8;
  font-weight: 400;
  transition: color 0.2s ease;
}

.moments-knowledge .knowledge-tree a:hover {
  color: #6b7280;
}

.moments-knowledge .knowledge-tree a.active {
  color: var(--font-color);
  font-weight: 700;
}

[data-theme="dark"] .moments-knowledge .knowledge-tree a.active {
  color: #49b1f5;
}

/* Moments 顶部标题：字体放大且恒为黑色 */
.moments-knowledge .knowledge-tree > li:first-child > a {
  font-size: 1.2rem;
  font-weight: 700;
  color: #000 !important;
}

/* Moments 日期前面的蓝色小圆（与 projects/courses 目录一致，顶部标题不带圆点）。
   顶层 ul 默认 padding-left:0，marker 会被 .knowledge-sidebar 的
   overflow:auto 裁掉，需要留出内边距让圆点可见。 */
.moments-knowledge .knowledge-tree {
  padding-left: 18px;
}

.moments-knowledge .knowledge-tree > li:not(:first-child) {
  list-style-type: circle;
}

.moments-knowledge .knowledge-tree > li:not(:first-child)::marker {
  color: #49b1f5;
}

.moments-knowledge .knowledge-tree > li:first-child {
  list-style-type: none;
}

/* 重逢倒计时 */
.reunion-countdown {
  margin: 8px 0 20px;
  font-size: 1.15rem;
  color: var(--font-color);
}

/* moments 页面内容太短时页面滚不动，导致点击日期无法“跳到顶部”。
   给内容列一个最小高度，保证滚动范围与 projects/courses 一致 */
.moments-knowledge .knowledge-content {
  min-height: calc(100vh - 240px);
}