/* ============================================================
   main.css — 布局与组件
   只引用 theme.css 的变量，不写死颜色。
   ============================================================ */

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  height: 100%;
  overflow: hidden;
  background: var(--paper-0);
  color: var(--ink-1);
  font-family: var(--font-body);
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior: none;   /* 拖长卷/地图时不触发浏览器下拉刷新 */
}

::selection { background: var(--cinnabar-soft); color: var(--ink-0); }

/* 纸纹全局质感 */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image: var(--brush-texture);
  pointer-events: none;
  z-index: 1;
  opacity: .8;
}

button { font-family: inherit; cursor: pointer; }
input  { font-family: inherit; }
a { color: var(--cinnabar); text-decoration: none; }
a:hover { color: var(--cinnabar-deep); }

/* ============ 顶栏 ============ */
#topbar {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--topbar-h);
  display: flex; align-items: center; gap: 18px;
  padding: 0 20px;
  background: linear-gradient(to bottom, var(--paper-1), var(--paper-0));
  border-bottom: 1px solid var(--paper-edge);
  box-shadow: 0 2px 12px var(--paper-shadow);
  z-index: var(--z-topbar);
}
#topbar .brand {
  display: flex; align-items: baseline; gap: 10px;
  font-family: var(--font-brush);
  color: var(--ink-0);
  white-space: nowrap;
}
#topbar .brand .title { font-size: 21px; letter-spacing: 2px; }
#topbar .brand .subtitle { font-size: 12px; color: var(--ink-3); letter-spacing: 1px; }

#view-tabs { display: flex; gap: 4px; position: relative; }
#view-tabs button {
  border: 1px solid transparent;
  background: transparent;
  color: var(--ink-2);
  font-size: 15px;
  font-family: var(--font-brush);
  letter-spacing: 3px;
  padding: 7px 16px 7px 19px;
  border-radius: var(--radius-paper);
  transition: all var(--dur-fast) var(--ease-brush);
}
#view-tabs button:hover { color: var(--ink-0); background: var(--paper-2); }
#view-tabs button.active {
  color: var(--cinnabar);
  border-color: var(--paper-edge);
  background: var(--paper-2);
}
/* 朱砂墨条滑动指示器（由 app.js 定位） */
#tab-ink {
  position: absolute; bottom: 0; left: 0;
  height: 2px; width: 0;
  background: var(--cinnabar);
  border-radius: 2px;
  pointer-events: none;
}
#tab-ink.moving { transition: transform var(--dur-mid) var(--ease-brush), width var(--dur-mid) var(--ease-brush); }

#topbar .spacer { flex: 1; }

/* 顶栏快捷键按钮 */
#help-btn, #theme-toggle {
  border: 1px solid var(--paper-edge);
  background: transparent;
  color: var(--ink-2);
  font-size: 12.5px;
  font-family: var(--font-brush);
  letter-spacing: 1px;
  padding: 6px 12px;
  border-radius: var(--radius-paper);
  transition: all var(--dur-fast);
  white-space: nowrap;
}
#help-btn:hover, #theme-toggle:hover { border-color: var(--cinnabar); color: var(--cinnabar); }
#theme-toggle { font-size: 15px; padding: 5px 11px; line-height: 1; }

/* 顶栏来源切换(两史口径) */
#src-switch {
  display: flex; align-items: stretch;
  border: 1px solid var(--paper-edge);
  border-radius: var(--radius-paper);
  background: var(--paper-2);
  overflow: hidden;
  white-space: nowrap;
}
#src-switch button {
  border: none; border-right: 1px solid var(--paper-edge);
  background: transparent;
  color: var(--ink-2);
  font-size: 12.5px; font-family: var(--font-brush); letter-spacing: 1px;
  padding: 6px 11px;
  cursor: pointer;
  display: flex; align-items: center; gap: 5px;
  transition: all var(--dur-fast);
}
#src-switch button:last-child { border-right: none; }
#src-switch button .sdot { width: 7px; height: 7px; border-radius: 2px; display: inline-block; flex: none; }
#src-switch button:hover { color: var(--ink-0); background: var(--paper-1); }
#src-switch button.active { color: var(--cinnabar); background: var(--paper-1); font-weight: 700; }

/* 两史口径对照块(抽屉 + Wiki 共用) */
.cmp-block {
  margin-top: 20px;
  border: 1px solid var(--paper-edge);
  border-radius: var(--radius-paper);
  background: var(--paper-2);
  overflow: hidden;
}
.cmp-title {
  display: flex; justify-content: space-between; align-items: baseline; gap: 10px;
  font-family: var(--font-brush); font-size: 14px; letter-spacing: 2px; color: var(--ink-1);
  padding: 9px 14px 8px;
  border-bottom: 1px solid var(--paper-edge);
  background: var(--paper-1);
}
.cmp-title .cmp-hint { font-size: 11px; color: var(--ink-3); letter-spacing: 0; font-family: var(--font-body); }
.cmp-cols { display: grid; grid-template-columns: 1fr 1fr; }
.cmp-col { padding: 12px 14px 14px; min-width: 0; }
.cmp-col + .cmp-col { border-left: 1px solid var(--paper-edge); }
.cmp-col .cmp-book {
  display: flex; align-items: center; gap: 6px;
  font-size: 12.5px; font-weight: 700; font-family: var(--font-brush);
  color: var(--ink-0); margin-bottom: 8px;
}
.cmp-col .cmp-book .sdot { width: 8px; height: 8px; border-radius: 2px; flex: none; }
.cmp-col .cmp-none { color: var(--ink-3); font-size: 12.5px; line-height: 1.6; }
.cmp-col .cmp-stat { font-size: 11.5px; color: var(--ink-2); margin-bottom: 7px; }
.cmp-col .cmp-passage { margin: 0 0 10px; }
.cmp-col .cmp-passage:last-of-type { margin-bottom: 0; }
.cmp-col .cmp-psect {
  font-size: 11px; font-weight: 700; letter-spacing: .3px;
  margin-bottom: 3px; line-height: 1.5;
}
.cmp-col .cmp-psect .cmp-sep { color: var(--ink-4); font-weight: 400; }
.cmp-col .cmp-ptext {
  font-size: 12.5px; color: var(--ink-1); line-height: 1.75;
  text-align: justify;
}
.cmp-col .cmp-more {
  font-size: 11px; color: var(--ink-3); margin-top: 9px; padding-top: 8px;
  border-top: 1px dashed var(--paper-edge); line-height: 1.6;
}
.cmp-col .cmp-note {
  font-size: 12.5px; color: var(--ink-1); line-height: 1.7;
  margin-top: 9px; padding-top: 9px;
  border-top: 1px dashed var(--paper-edge);
}
.cmp-col .cmp-note::before { content: '✎ 评语'; font-size: 11px; color: var(--gold); display: block; margin-bottom: 2px; }
@media (max-width: 560px) {
  .cmp-cols { grid-template-columns: 1fr; }
  .cmp-col + .cmp-col { border-left: none; border-top: 1px solid var(--paper-edge); }
}

/* ============ 快捷键帮助浮层 ============ */
#kbd-help {
  position: fixed; inset: 0;
  background: rgba(26, 23, 18, .38);
  z-index: var(--z-modal);
  visibility: hidden; opacity: 0;
  transition: opacity var(--dur-fast) var(--ease-brush), visibility 0s linear var(--dur-fast);
  display: flex;
  align-items: center; justify-content: center;
}
#kbd-help.open {
  visibility: visible; opacity: 1;
  transition: opacity var(--dur-fast) var(--ease-brush);
}
#kbd-help .kh-card {
  background: var(--paper-1);
  border: 1px solid var(--paper-edge);
  border-radius: 8px;
  box-shadow: 0 18px 60px rgba(0, 0, 0, .3);
  padding: 22px 28px 26px;
  max-width: 720px; width: min(92vw, 720px);
  max-height: 84vh; overflow-y: auto;
  animation: khIn .2s var(--ease-brush);
}
@keyframes khIn { from { opacity: 0; transform: translateY(10px) scale(.98); } }
#kbd-help .kh-head {
  font-family: var(--font-brush);
  font-size: 20px; color: var(--ink-0); letter-spacing: 3px;
  padding-bottom: 12px; margin-bottom: 10px;
  border-bottom: 1px solid var(--ink-wash);
  display: flex; justify-content: space-between; align-items: baseline;
}
#kbd-help .kh-esc { font-size: 11px; color: var(--ink-3); letter-spacing: 1px; }
#kbd-help .kh-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 28px; }
@media (max-width: 640px) { #kbd-help .kh-grid { grid-template-columns: 1fr; } }
#kbd-help .kh-gtitle {
  font-family: var(--font-brush);
  font-size: 14px; color: var(--cinnabar);
  margin: 10px 0 6px; letter-spacing: 2px;
}
#kbd-help .kh-row { display: flex; align-items: baseline; gap: 10px; margin: 4px 0; }
#kbd-help .kh-keys { flex-shrink: 0; min-width: 108px; text-align: right; }
#kbd-help kbd {
  font-family: var(--font-mono);
  font-size: 11px; color: var(--ink-1);
  background: var(--paper-2);
  border: 1px solid var(--paper-edge);
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: 1px 6px;
  margin-left: 3px;
  display: inline-block;
}
#kbd-help .kh-desc { font-size: 12.5px; color: var(--ink-2); line-height: 1.6; }

/* 全局搜索框 */
#global-search {
  display: flex; align-items: center; gap: 8px;
  background: var(--paper-2);
  border: 1px solid var(--paper-edge);
  border-radius: 18px;
  padding: 5px 14px;
  width: 260px;
  transition: box-shadow var(--dur-fast);
}
#global-search:focus-within { box-shadow: 0 0 0 2px var(--cinnabar-soft); }
#global-search input {
  flex: 1; border: none; outline: none; background: transparent;
  color: var(--ink-0); font-size: 14px;
}
#global-search input::placeholder { color: var(--ink-3); }
#global-search .kbd {
  font-family: var(--font-mono); font-size: 10px;
  color: var(--ink-3); border: 1px solid var(--paper-edge);
  border-radius: 3px; padding: 1px 5px;
  white-space: nowrap;
}

/* ============ 视图容器 ============ */
#views { position: fixed; inset: var(--topbar-h) 0 0 0; z-index: 2; }
.view { position: absolute; inset: 0; display: none; }
.view.active { display: block; animation: viewIn .28s var(--ease-brush); }
@keyframes viewIn { from { opacity: 0; transform: translateY(6px); } }
#view-wiki.active { display: flex; }

/* ============ 时间轴视图 ============ */
#view-timeline { overflow: hidden; cursor: grab; }
#view-timeline.dragging { cursor: grabbing; }
#tl-svg { display: block; width: 100%; height: 100%; }

/* 时间轴内文本样式（SVG 内） */
.tl-period-label {
  font-family: var(--font-brush);
  fill: var(--ink-1);
  letter-spacing: 6px;
}
.tl-period-theme {
  font-family: var(--font-body);
  fill: var(--ink-3);
}
.tl-year-label {
  font-family: var(--font-body);
  fill: var(--ink-3);
}
.tl-year-label.decade { fill: var(--ink-1); font-weight: 600; }
.tl-item-label {
  font-family: var(--font-brush);
  fill: var(--ink-1);
}
.tl-node { cursor: pointer; }

/* 时间轴筛选浮层（右上角，避让时期题字；左下角把手可拉伸，尺寸记忆在 localStorage） */
#tl-filters {
  position: absolute; top: 14px; right: 16px;
  display: flex; flex-direction: column; gap: 6px;
  width: 252px; min-width: 170px; max-width: 60vw;
  z-index: 10;
  background: color-mix(in srgb, var(--paper-1) 88%, transparent);
  border: 1px solid var(--paper-edge);
  border-radius: var(--radius-paper);
  padding: 10px 12px;
  backdrop-filter: blur(6px);
  box-shadow: 0 2px 10px var(--paper-shadow);
}
#tl-filters .fl-body { flex: 1 1 auto; min-height: 0; overflow: auto; }
#tl-filters .fl-grip {
  position: absolute; left: 2px; bottom: 2px; width: 13px; height: 13px;
  cursor: nwse-resize; opacity: .4; border-radius: 3px;
  background: repeating-linear-gradient(135deg, transparent 0 3px, var(--ink-3) 3px 4.5px);
}
#tl-filters .fl-grip:hover { opacity: .85; }
#tl-filters .fl-title { font-size: 12px; color: var(--ink-3); letter-spacing: 2px; margin-bottom: 2px; }
#tl-filters .fl-hint { font-size: 11px; color: var(--ink-3); line-height: 1.7; margin-top: 8px; border-top: 1px dashed var(--paper-edge); padding-top: 7px; }
#tl-filters .fl-toggle { cursor: pointer; user-select: none; }
#tl-filters .fl-toggle:hover { color: var(--ink-1); }
#tl-filters .fl-arrow { display: inline-block; transition: transform var(--dur-fast); }
#tl-filters.collapsed .fl-arrow { transform: rotate(-90deg); }
#tl-filters.collapsed .fl-body { display: none; }
#tl-filters label {
  display: flex; align-items: center; gap: 7px;
  font-size: 13px; color: var(--ink-1); cursor: pointer; user-select: none;
}
#tl-filters input[type="checkbox"] { accent-color: var(--cinnabar); }
#tl-filters .dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }

/* 时间轴淡入淡出（入场显影 + 图层过滤 + 聚焦环） */
.g-minors, .g-washes, .g-ticks { transition: opacity .45s var(--ease-brush); }
.minor, .major, .band, .seal { transition: opacity .3s var(--ease-brush); }
.minor.off, .major.off, .band.off, .seal.off { opacity: 0 !important; pointer-events: none; }
.focus-ring { opacity: 0; pointer-events: none; transition: opacity .22s var(--ease-brush); }
.focus-ring.show { opacity: 1; }

/* ============ 详情抽屉 ============ */
#drawer {
  position: fixed; top: var(--topbar-h); right: 0;
  width: var(--drawer-w); bottom: 0;
  background: var(--paper-1);
  border-left: 1px solid var(--paper-edge);
  box-shadow: -8px 0 30px var(--paper-shadow);
  z-index: var(--z-drawer);
  transform: translateX(calc(100% + 30px));
  visibility: hidden;
  transition: transform var(--dur-mid) var(--ease-brush), visibility 0s linear var(--dur-mid);
  display: flex; flex-direction: column;
}
#drawer.open {
  transform: translateX(0);
  visibility: visible;
  transition: transform var(--dur-mid) var(--ease-brush);
}
/* 内容换装：三段错峰淡入（由 app.js 重触发 .swap 类） */
#drawer.swap .drawer-head, #drawer.swap .drawer-body, #drawer.swap .drawer-actions {
  animation: drawerSwap .3s var(--ease-out-soft) both;
}
#drawer.swap .drawer-body { animation-delay: .05s; }
#drawer.swap .drawer-actions { animation-delay: .1s; }
@keyframes drawerSwap { from { opacity: 0; transform: translateY(8px); } }
#drawer .drawer-head {
  padding: 18px 22px 12px;
  border-bottom: 1px solid var(--ink-wash);
}
#drawer .drawer-kicker {
  display: flex; align-items: center; gap: 8px; margin-bottom: 8px;
}
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 11px; letter-spacing: 1px;
  padding: 2px 8px; border-radius: 3px;
  border: 1px solid currentColor;
  opacity: .85;
}
.badge.solid { color: var(--seltx); border: none; }
#drawer .drawer-title {
  font-family: var(--font-brush);
  font-size: 24px; color: var(--ink-0);
  line-height: 1.3; letter-spacing: 1px;
}
#drawer .drawer-sub { font-size: 12px; color: var(--ink-3); margin-top: 6px; }
#drawer .drawer-close {
  position: absolute; top: 12px; right: 12px;
  z-index: 1;   /* 压过 drawer-head 的 drawerSwap 动画层叠上下文(fill:both 恒久生效),否则头部内容会盖住按钮吞掉点击 */
  border: none; background: transparent;
  font-size: 20px; color: var(--ink-3);
  width: 32px; height: 32px; border-radius: 50%;
}
#drawer .drawer-close:hover { background: var(--paper-2); color: var(--ink-0); }
#drawer .drawer-body {
  flex: 1; overflow-y: auto; padding: 16px 22px 40px;
  line-height: 1.85; font-size: 14.5px;
}
#drawer .drawer-body h1, #drawer .drawer-body h2, #drawer .drawer-body h3 {
  font-family: var(--font-brush); color: var(--ink-0);
  margin: 1.2em 0 .5em; font-size: 17px;
}
#drawer .drawer-body p { margin: .6em 0; }
#drawer .drawer-body ul { padding-left: 1.4em; margin: .5em 0; }
#drawer .drawer-body li { margin: .25em 0; }
#drawer .drawer-body table {
  border-collapse: collapse; width: 100%; margin: .8em 0; font-size: 13px;
}
#drawer .drawer-body td, #drawer .drawer-body th {
  border: 1px solid var(--paper-edge); padding: 5px 8px; text-align: left;
}
#drawer .drawer-body blockquote {
  border-left: 3px solid var(--cinnabar-soft);
  padding-left: 12px; color: var(--ink-2); margin: .8em 0;
}
#drawer .drawer-body .wikilink {
  color: var(--cinnabar); cursor: pointer;
  border-bottom: 1px dashed color-mix(in srgb, var(--cinnabar) 40%, transparent);
}
#drawer .drawer-body .wikilink:hover { color: var(--cinnabar-deep); }
#drawer .drawer-body .wikilink.missing { color: var(--ink-3); border-bottom-style: dotted; }

#drawer .drawer-actions {
  display: flex; flex-wrap: wrap; gap: 8px;
  padding: 12px 22px; border-top: 1px solid var(--ink-wash);
}
#drawer .drawer-actions button, .btn {
  border: 1px solid var(--paper-edge);
  background: var(--paper-2);
  color: var(--ink-1);
  font-size: 12.5px;
  padding: 6px 12px;
  border-radius: var(--radius-paper);
  letter-spacing: 1px;
  transition: all var(--dur-fast);
}
#drawer .drawer-actions button:hover, .btn:hover {
  border-color: var(--cinnabar); color: var(--cinnabar);
}
.btn-primary { background: var(--cinnabar) !important; color: var(--seltx) !important; border-color: var(--cinnabar) !important; }
.btn-primary:hover { background: var(--cinnabar-deep) !important; }

/* frontmatter 徽章区 */
.fm-badges { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.tag-chip {
  font-size: 11px; color: var(--ink-2);
  background: var(--paper-2); border: 1px solid var(--paper-edge);
  border-radius: 10px; padding: 1px 9px;
}

/* Wiki 页底「关联入口」条(替代旧默认按钮样式) */
.wiki-links-bar {
  display: flex; align-items: center; flex-wrap: wrap; gap: 8px;
  margin-top: 36px; padding-top: 14px;
  border-top: 1px dashed var(--paper-edge);
}
.wiki-links-bar .wlb-label {
  font-size: 11px; color: var(--ink-3); letter-spacing: 2px; margin-right: 2px;
}
.wiki-links-bar .btn { padding: 5px 12px; font-size: 12px; }

/* 编年事件抽屉:策展说明段 */
.ev-blurb { color: var(--ink-1); font-weight: 500; }

/* ============ WIKI 视图 ============ */
#view-wiki { display: none; }
#view-wiki.active { display: flex; }
/* 移动端目录浮动按钮(≤640px 显示,见响应式节) */
#wiki-toc-btn { display: none; }
#wiki-sidebar {
  width: var(--sidebar-w); flex-shrink: 0;
  border-right: 1px solid var(--paper-edge);
  background: color-mix(in srgb, var(--paper-1) 60%, transparent);
  display: flex; flex-direction: column;
}
#wiki-sidebar .ws-head {
  padding: 14px 16px 8px;
  font-family: var(--font-brush); font-size: 16px;
  color: var(--ink-0); letter-spacing: 2px;
  border-bottom: 1px solid var(--ink-wash);
}
#wiki-tree { flex: 1; overflow-y: auto; padding: 8px 6px 30px; }
.wt-group { margin: 4px 0; }
.wt-group > .wt-ghead {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 10px; cursor: pointer; user-select: none;
  font-size: 13.5px; color: var(--ink-1); border-radius: 3px;
}
.wt-group > .wt-ghead:hover { background: var(--paper-2); }
.wt-group > .wt-ghead .count { font-size: 11px; color: var(--ink-3); white-space: nowrap; }
.wt-group > .wt-ghead > span:first-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.wt-group > .wt-ghead .arrow { font-size: 10px; color: var(--ink-3); transition: transform var(--dur-fast); }
.wt-group.open > .wt-ghead .arrow { transform: rotate(90deg); }
/* 分组展开/收起：grid-rows 过渡（内容由 .wt-inner 包裹） */
.wt-items {
  display: grid; grid-template-rows: 0fr;
  opacity: 0;
  transition: grid-template-rows .28s var(--ease-brush), opacity .28s var(--ease-brush);
}
.wt-group.open .wt-items { grid-template-rows: 1fr; opacity: 1; }
.wt-items > .wt-inner { overflow: hidden; min-height: 0; }
.wt-item {
  display: block; width: 100%; text-align: left;
  border: none; background: transparent;
  padding: 4px 10px 4px 22px;
  font-size: 13px; color: var(--ink-2);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  border-radius: 3px;
  transition: background var(--dur-fast), color var(--dur-fast);
}
.wt-item:hover { background: var(--paper-2); color: var(--ink-0); }
.wt-item.current { color: var(--cinnabar); background: var(--cinnabar-soft); }

/* 分期导航(wiki 树顶部):两套教材口径块 + 期内折叠(期 → 章节/笔记) */
.wt-group.wt-scheme > .wt-ghead { font-weight: 600; }
.wt-scheme > .wt-items > .wt-inner { padding-left: 6px; }
.wt-period { margin: 1px 0; }
.wt-period > .wt-phead {
  display: flex; align-items: center; justify-content: space-between;
  padding: 4px 10px 4px 16px; cursor: pointer; user-select: none;
  font-size: 12.5px; color: var(--ink-2); border-radius: 3px;
}
.wt-period > .wt-phead:hover { background: var(--paper-2); }
.wt-period > .wt-phead .count { font-size: 11px; color: var(--ink-3); }
.wt-period > .wt-phead .arrow { font-size: 10px; color: var(--ink-3); transition: transform var(--dur-fast); }
.wt-period.open > .wt-phead .arrow { transform: rotate(90deg); }
.wt-period > .wt-items > .wt-inner .wt-item { padding-left: 34px; font-size: 12.5px; }
.wt-chap {
  display: block; width: 100%; text-align: left;
  border: none; background: transparent; cursor: pointer;
  padding: 3px 10px 3px 34px; font-size: 12px; color: var(--ink-3);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  border-radius: 3px;
  transition: background var(--dur-fast), color var(--dur-fast);
}
.wt-chap::before { content: '§ '; opacity: .55; }
.wt-chap:hover { background: var(--paper-2); color: var(--ink-0); }
.wt-chap.current { color: var(--cinnabar); background: var(--cinnabar-soft); }
/* 章节总结行(每章 AI 总结,嵌于章名行下) */
.wt-sum {
  display: block; width: 100%; text-align: left;
  border: none; background: transparent; cursor: pointer;
  padding: 2px 10px 3px 48px; font-size: 11.5px; color: var(--ink-3);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  border-radius: 3px;
  transition: background var(--dur-fast), color var(--dur-fast);
}
.wt-sum::before { content: '✦ '; color: var(--gold); opacity: .85; }
.wt-sum:hover { background: var(--paper-2); color: var(--ink-1); }
.wt-muted { padding: 4px 10px 4px 16px; font-size: 12px; color: var(--ink-3); opacity: .7; }

/* 章节页顶 AI 总结导读盒(showChapter 渲染,<details> 可折叠) */
.chap-sum {
  margin: 16px 0 0;
  border: 1px solid var(--ink-wash); border-radius: 4px;
  background: color-mix(in srgb, var(--paper-2) 55%, transparent);
}
.chap-sum > summary {
  cursor: pointer; user-select: none;
  padding: 10px 16px; font-size: 13.5px;
  font-family: var(--font-brush); letter-spacing: 1.5px; color: var(--ink-1);
}
.chap-sum > summary::before { content: '✦ '; color: var(--gold); }
.chap-sum > summary::marker { content: ''; }
.chap-sum[open] > summary { border-bottom: 1px dashed var(--ink-wash); }
.chap-sum-body { padding: 10px 20px 14px; font-size: 14px; }
.chap-sum-body h1, .chap-sum-body h2 { font-size: 16px; margin: .8em 0 .4em; }

/* Wiki 正文切换淡入（由 wiki.js 重触发 .in 类） */
#wiki-content.in > * { animation: wikiIn .32s var(--ease-out-soft) both; }
#wiki-content.in h1 { animation-delay: 0s; }
@keyframes wikiIn { from { opacity: 0; transform: translateY(6px); } }

#wiki-main { flex: 1; overflow-y: auto; padding: 34px 46px 80px; }
#wiki-content { max-width: 820px; margin: 0 auto; }
#wiki-content h1 {
  font-family: var(--font-brush); font-size: 30px;
  color: var(--ink-0); letter-spacing: 2px;
  margin: 0 0 6px; padding-bottom: 14px;
  border-bottom: 1px solid var(--ink-wash);
}
#wiki-content h2 { font-family: var(--font-brush); font-size: 20px; margin: 1.4em 0 .6em; color: var(--ink-0); }
#wiki-content h3 { font-family: var(--font-brush); font-size: 16.5px; margin: 1.2em 0 .5em; }
#wiki-content p { line-height: 1.95; margin: .7em 0; }
#wiki-content ul, #wiki-content ol { padding-left: 1.6em; line-height: 1.9; margin: .5em 0; }
#wiki-content table { border-collapse: collapse; margin: 1em 0; font-size: 13.5px; width: 100%; }
#wiki-content td, #wiki-content th { border: 1px solid var(--paper-edge); padding: 6px 10px; }
#wiki-content th { background: var(--paper-2); }
#wiki-content blockquote {
  margin: 1em 0; padding: 8px 16px;
  border-left: 3px solid var(--cinnabar-soft);
  background: var(--paper-2); color: var(--ink-2);
  border-radius: 0 var(--radius-paper) var(--radius-paper) 0;
}
#wiki-content .wikilink { cursor: pointer; }
#wiki-content .wikilink.missing { color: var(--ink-3); }
#wiki-content hr { border: none; border-top: 1px dashed var(--paper-edge); margin: 1.6em 0; }
#wiki-empty { color: var(--ink-3); text-align: center; margin-top: 120px; letter-spacing: 2px; }

/* ============ 图谱视图 ============ */
#view-graph { overflow: hidden; }
#graph-canvas { display: block; width: 100%; height: 100%; touch-action: none; }
#graph-toolbar {
  position: absolute; top: 14px; left: 16px; z-index: 10;
  display: flex; flex-wrap: wrap; gap: 6px;
  max-width: 620px;
}
#graph-toolbar .gchip {
  display: inline-flex; align-items: center; gap: 5px;
  border: 1px solid var(--paper-edge);
  background: color-mix(in srgb, var(--paper-1) 88%, transparent);
  backdrop-filter: blur(6px);
  color: var(--ink-2); font-size: 12.5px;
  padding: 5px 11px; border-radius: 15px;
  transition: all var(--dur-fast);
  user-select: none;
}
#graph-toolbar .gchip:hover { border-color: var(--ink-3); }
#graph-toolbar .gchip.on { color: var(--ink-0); border-color: var(--ink-3); }

/* ============ 时间轴阅读轨：缩放滑块 + 平移 ============ */
#tl-hud {
  position: absolute; right: 16px; bottom: 14px; z-index: 6;
  display: flex; align-items: center; gap: 1px;
  height: 40px; padding: 0 4px;
  border: 1px solid var(--paper-edge);
  background: color-mix(in srgb, var(--paper-1) 92%, transparent);
  backdrop-filter: blur(6px);
  font-family: var(--font-body);
  user-select: none;
}
#tl-hud .tlh-label {
  font-size: 10px; letter-spacing: .32em; color: var(--ink-3);
  padding: 0 4px 0 12px;
}
#tl-hud button {
  border: 0; background: transparent;
  color: var(--ink-2); font-family: var(--font-body);
  font-size: 13.5px; line-height: 1;
  height: 40px; min-width: 34px; padding: 0 7px;
  cursor: pointer;
  transition: color var(--dur-fast), background var(--dur-fast);
}
#tl-hud button:hover { color: var(--ink-0); }
#tl-hud .tlh-range {
  -webkit-appearance: none; appearance: none;
  width: 110px; height: 2px; margin: 0 9px;
  background: var(--paper-edge); outline: none; cursor: ew-resize;
}
#tl-hud .tlh-range::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 7px; height: 18px; border: 0; border-radius: 0;
  background: var(--cinnabar); cursor: ew-resize;
}
#tl-hud .tlh-range::-moz-range-thumb {
  width: 7px; height: 18px; border: 0; border-radius: 0;
  background: var(--cinnabar); cursor: ew-resize;
}
#tl-hud .tlh-range::-moz-range-track { height: 2px; background: var(--paper-edge); }
#tl-hud .tlh-now {
  font-style: italic; font-size: 12px; color: var(--ink-3);
  min-width: 42px; text-align: center;
  font-variant-numeric: tabular-nums;
}
#tl-hud .tlh-sep { width: 1px; height: 16px; background: var(--paper-edge); margin: 0 5px; }
#tl-hud .tlh-dot { color: var(--ink-4); margin: 0 3px; font-size: 12px; }
#tl-hud .tlh-ov { letter-spacing: .28em; font-size: 12px; padding: 0 8px 0 13px; }

/* 天幕高度拖拽热区（吸顶头底缘） */
#sky-resize {
  position: absolute; left: 0; right: 150px; height: 9px; z-index: 6;
  cursor: ns-resize;
}
#sky-resize:hover { background: var(--ink-wash); }

/* ============ 面板隐形调宽热区 ============ */
.sz-grip {
  position: absolute; top: 0; bottom: 0; width: 9px; z-index: 30;
  cursor: col-resize;
}
.sz-grip:hover { background: var(--ink-wash); }
#graph-toolbar .gchip .dot { width: 8px; height: 8px; border-radius: 50%; }
#graph-hint {
  position: absolute; bottom: 14px; left: 50%; transform: translateX(-50%);
  font-size: 12px; color: var(--ink-3); letter-spacing: 1px;
  background: color-mix(in srgb, var(--paper-1) 85%, transparent);
  padding: 5px 16px; border-radius: 14px;
  border: 1px solid var(--paper-edge);
  pointer-events: none; z-index: 10;
}

/* 力度调节面板(右上角,可折叠) */
#graph-forces {
  position: absolute; top: 14px; right: 16px; z-index: 10;
  width: 224px;
  background: color-mix(in srgb, var(--paper-1) 90%, transparent);
  border: 1px solid var(--paper-edge);
  border-radius: var(--radius-paper);
  backdrop-filter: blur(6px);
  padding: 9px 12px 10px;
  box-shadow: 0 2px 10px var(--paper-shadow);
}
#graph-forces .gf-title {
  font-size: 12px; color: var(--ink-3); letter-spacing: 2px;
  cursor: pointer; user-select: none;
}
#graph-forces .gf-title:hover { color: var(--ink-1); }
#graph-forces .gf-arrow { display: inline-block; transition: transform var(--dur-fast); }
#graph-forces.collapsed .gf-arrow { transform: rotate(-90deg); }
#graph-forces.collapsed .gf-body { display: none; }
#graph-forces .gf-row {
  display: flex; align-items: center; gap: 7px;
  margin: 7px 0 3px; font-size: 12px; color: var(--ink-1);
}
#graph-forces .gf-row:hover .gf-label { color: var(--ink-0); }
#graph-forces .gf-label { width: 64px; flex: none; }
#graph-forces .gf-row input[type=range] { flex: 1; min-width: 0; accent-color: var(--cinnabar); height: 4px; }
#graph-forces .gf-val { font-family: var(--font-mono); font-size: 10.5px; color: var(--ink-3); width: 32px; text-align: right; }
#graph-forces .gf-reset {
  margin-top: 8px; width: 100%;
  border: 1px solid var(--paper-edge); background: var(--paper-2);
  color: var(--ink-2); font-size: 11.5px; padding: 4px 0;
  border-radius: var(--radius-paper); letter-spacing: 1px;
  transition: all var(--dur-fast);
}
#graph-forces .gf-reset:hover { border-color: var(--cinnabar); color: var(--cinnabar); }
#graph-forces .gf-hint {
  font-size: 10.5px; color: var(--ink-3); line-height: 1.6;
  margin-top: 7px; border-top: 1px dashed var(--paper-edge); padding-top: 6px;
}

/* ============ 地图视图 ============ */
#view-map { overflow: hidden; }
#map-chart { width: 100%; height: 100%; }
#map-chart canvas { touch-action: none; }
/* 懒加载占位(echarts/geojson 首开地图时注入) */
.map-loading {
  padding: 60px 20px; text-align: center;
  color: var(--ink-3); font-size: 14px; letter-spacing: 2px;
}

/* 多词条名录浮层 */
.map-pop {
  position: absolute;
  min-width: 200px; max-width: 250px;
  background: var(--paper-1);
  border: 1px solid var(--paper-edge);
  border-radius: var(--radius-paper);
  box-shadow: 0 8px 26px var(--paper-shadow);
  z-index: 20;
  padding: 10px 8px 8px;
  animation: popIn .16s var(--ease-brush);
}
@keyframes popIn { from { opacity: 0; transform: translateY(4px); } }
/* 名录浮层出场淡出（map.js 加 .closing 140ms 后移除） */
.map-pop.closing {
  opacity: 0; transform: translateY(4px);
  transition: opacity .14s var(--ease-brush), transform .14s var(--ease-brush);
}
.map-pop .mp-head {
  font-family: var(--font-brush);
  font-size: 14px; color: var(--ink-0);
  padding: 0 8px 8px; margin-bottom: 4px;
  border-bottom: 1px solid var(--ink-wash);
}
.map-pop .mp-count { font-size: 11px; color: var(--ink-3); margin-left: 6px; }
.map-pop .mp-item {
  display: flex; align-items: center; gap: 7px;
  width: 100%; text-align: left;
  border: none; background: transparent;
  padding: 6px 8px; border-radius: 3px;
  cursor: pointer;
}
.map-pop .mp-item:hover { background: var(--paper-2); }
.map-pop .mp-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.map-pop .mp-name { font-size: 13px; color: var(--ink-1); flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.map-pop .mp-years { font-family: var(--font-mono); font-size: 10px; color: var(--ink-3); }

#map-slider-wrap {
  position: absolute; left: 50%; transform: translateX(-50%); bottom: 26px;
  width: min(720px, 80%);
  background: color-mix(in srgb, var(--paper-1) 96%, transparent);
  border: 1px solid var(--paper-edge);
  border-radius: var(--radius-paper);
  padding: 12px 22px 10px;
  z-index: 10;
  box-shadow: 0 2px 14px var(--paper-shadow);
}
#map-slider-wrap .ms-years {
  display: flex; justify-content: space-between;
  font-family: var(--font-mono); font-size: 11px; color: var(--ink-3);
  margin-bottom: 4px;
}
#map-year-display {
  text-align: center; font-family: var(--font-brush);
  font-size: 17px; color: var(--ink-0); letter-spacing: 2px;
}
#map-year-display .yr { color: var(--ink-0); font-size: 22px; }
#map-play {
  position: absolute; right: 18px; top: 50%; transform: translateY(-50%);
  width: 34px; height: 34px; border-radius: 50%;
  border: 1px solid var(--cinnabar); background: var(--cinnabar-soft);
  color: var(--cinnabar); font-size: 13px;
}
#map-play:hover { background: var(--cinnabar); color: var(--seltx); }
#map-slider {
  width: 100%; accent-color: var(--cinnabar);
  height: 4px;
}
#map-legend {
  position: absolute; top: 14px; left: 16px;
  background: color-mix(in srgb, var(--paper-1) 96%, transparent);
  border: 1px solid var(--paper-edge);
  border-radius: var(--radius-paper);
  padding: 10px 14px; font-size: 12.5px;
  color: var(--ink-2); z-index: 10;
}
#map-legend .lg-row { display: flex; align-items: center; gap: 7px; margin: 4px 0; }
#map-legend #map-city-sel {
  margin-top: 8px; width: 100%;
  background: var(--paper-2); color: var(--ink-1);
  border: 1px solid var(--paper-edge); border-radius: var(--radius-paper);
  padding: 4px 6px; font: inherit; font-size: 12px;
}

/* ---------- 城市编年带：一个地点 × 整条时间（地图内嵌面板） ---------- */
#city-strip {
  position: absolute; left: 50%; transform: translateX(-50%);
  bottom: 96px; width: min(980px, calc(100% - 24px));
  background: color-mix(in srgb, var(--paper-1) 96%, transparent);
  border: 1px solid var(--paper-edge);
  border-radius: var(--radius-paper);
  box-shadow: var(--paper-shadow);
  padding: 8px 10px 5px; z-index: 11;
  opacity: 0; pointer-events: none; translate: 0 10px;
  transition: opacity var(--dur-mid) var(--ease-out-soft), translate var(--dur-mid) var(--ease-out-soft);
}
#city-strip.open { opacity: 1; pointer-events: auto; translate: 0 0; }
#city-strip .cs-head { display: flex; align-items: baseline; gap: 8px; }
#city-strip .cs-title { font-family: var(--font-brush); font-size: 17px; color: var(--ink-0); }
#city-strip .cs-meta { font-family: inherit; font-size: 12px; color: var(--ink-3); margin-left: 4px; }
#city-strip .cs-close {
  margin-left: auto; background: none; border: none; cursor: pointer;
  color: var(--ink-3); font-size: 14px; padding: 2px 6px;
}
#city-strip .cs-close:hover { color: var(--ink-0); }
#city-strip .cs-scroll { max-height: 38vh; overflow: auto; margin-top: 4px; }
#city-strip .cs-dec { fill: var(--ink-3); font-size: 9.5px; }
#city-strip .cs-bar { cursor: pointer; }
#city-strip .cs-bar rect { opacity: .42; transition: opacity var(--dur-fast) linear; }
#city-strip .cs-bar:hover rect { opacity: .8; }
#city-strip .cs-bar.on rect { opacity: 1; }
#city-strip .cs-bar-label { fill: var(--bar-ink); font-size: 10px; pointer-events: none; }
#city-strip .cs-out-label { fill: var(--ink-2); font-size: 10px; pointer-events: none; }
#city-strip .cs-cursor { stroke: var(--cinnabar); stroke-width: 1.5; pointer-events: none; }
.mp-strip {
  margin-left: auto; background: none; cursor: pointer;
  border: 1px solid var(--paper-edge); color: var(--ink-2);
  font-size: 11px; padding: 1px 7px;
}
.mp-strip:hover { color: var(--ink-0); border-color: var(--ink-3); }

/* ============ 拼图白板视图 ============ */
#view-puzzle.active { display: flex; }
#pz-lib-btn { display: none; }

/* ---- 左侧卡片库 ---- */
#pz-library {
  width: var(--sidebar-w); flex-shrink: 0;
  border-right: 1px solid var(--paper-edge);
  background: color-mix(in srgb, var(--paper-1) 60%, transparent);
  display: flex; flex-direction: column;
  user-select: none;
}
#pz-library .pz-lib-head {
  padding: 14px 16px 8px;
  font-family: var(--font-brush); font-size: 16px;
  color: var(--ink-0); letter-spacing: 2px;
  border-bottom: 1px solid var(--ink-wash);
}
#pz-library .pz-lib-search { padding: 10px 12px 6px; }
#pz-library .pz-lib-search input {
  width: 100%; border: 1px solid var(--paper-edge); border-radius: var(--radius-paper);
  background: var(--paper-2); color: var(--ink-0); font-size: 13px;
  padding: 6px 10px; outline: none;
}
#pz-library .pz-lib-search input:focus { box-shadow: 0 0 0 2px var(--cinnabar-soft); }
#pz-lib-chips { display: flex; flex-wrap: wrap; gap: 4px; padding: 4px 12px 8px; }
.pz-chip {
  display: inline-flex; align-items: center; gap: 5px;
  border: 1px solid var(--paper-edge); background: transparent;
  color: var(--ink-3); font-size: 11.5px;
  padding: 2.5px 9px; border-radius: 12px;
  transition: all var(--dur-fast);
}
.pz-chip i { width: 7px; height: 7px; border-radius: 2px; display: inline-block; }
.pz-chip:hover { color: var(--ink-1); border-color: var(--ink-3); }
.pz-chip.on { color: var(--ink-0); background: var(--paper-2); border-color: var(--ink-3); }
#pz-lib-list { flex: 1; overflow-y: auto; padding: 4px 6px 30px; }
.pz-lg { margin: 2px 0; }
.pz-lg-head {
  display: flex; align-items: center; gap: 7px;
  padding: 5px 8px; cursor: pointer; user-select: none;
  font-size: 13px; color: var(--ink-2); border-radius: 3px;
}
.pz-lg-head:hover { background: var(--paper-2); }
.pz-lg-head > span:nth-child(2) { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pz-lg-head .dot { width: 8px; height: 8px; border-radius: 2px; flex: none; }
.pz-lg-head .count { font-size: 10.5px; color: var(--ink-4); }
.pz-lg-head .arrow { font-size: 9px; color: var(--ink-4); transition: transform var(--dur-fast); }
.pz-lg.open > .pz-lg-head .arrow { transform: rotate(90deg); }
.pz-lg-body { display: none; }
.pz-lg.open > .pz-lg-body { display: block; }
.pz-li {
  display: flex; align-items: baseline; gap: 6px;
  width: 100%; text-align: left;
  border: none; background: transparent; cursor: grab;
  padding: 3.5px 8px 3.5px 23px; border-radius: 3px;
}
.pz-li:hover { background: var(--paper-2); }
.pz-li-title { flex: 1; min-width: 0; font-size: 12.5px; color: var(--ink-2);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pz-li:hover .pz-li-title { color: var(--ink-0); }
.pz-li-meta { font-family: var(--font-mono); font-size: 10px; color: var(--ink-4); flex: none; }
.pz-li-on { display: none; font-size: 8px; color: var(--cinnabar); flex: none; }
.pz-li.onboard .pz-li-on { display: inline; }
.pz-lib-foot {
  padding: 8px 14px; font-size: 10.5px; color: var(--ink-4); line-height: 1.75;
  border-top: 1px dashed var(--paper-edge);
}
/* 库拖拽跟随影 */
.pz-ghost {
  position: fixed; z-index: var(--z-modal); pointer-events: none;
  display: flex; align-items: baseline; gap: 6px;
  background: var(--paper-1); border: 1px solid var(--cinnabar);
  box-shadow: 0 6px 20px var(--paper-shadow);
  padding: 6px 12px; border-radius: 4px; opacity: .94;
}

/* ---- 无限画布 ---- */
#pz-viewport {
  flex: 1; position: relative; overflow: hidden;
  cursor: grab; touch-action: none; user-select: none;
  background-color: var(--paper-0);
  background-image: radial-gradient(color-mix(in srgb, var(--ink-3) 42%, transparent) 1px, transparent 1.2px);
}
#pz-viewport.dragging { cursor: grabbing; }
#pz-viewport.drop::after {
  content: ''; position: absolute; inset: 0; z-index: 20;
  box-shadow: inset 0 0 0 2px var(--cinnabar);
  pointer-events: none;
}
#pz-board { position: absolute; left: 0; top: 0; width: 0; height: 0; transform-origin: 0 0; will-change: transform; }
#pz-groups { position: absolute; z-index: 1; }
#pz-edges { position: absolute; left: 0; top: 0; width: 1px; height: 1px; overflow: visible; z-index: 2; }
#pz-cards { position: absolute; z-index: 3; }

/* ---- 分组框 ---- */
.pz-group {
  position: absolute;
  border: 1.5px dashed color-mix(in srgb, var(--ink-2) 42%, transparent);
  border-radius: 8px;
  background: color-mix(in srgb, var(--ink-2) 4%, transparent);
}
.pz-group.sel { border-color: var(--cinnabar); background: color-mix(in srgb, var(--cinnabar) 4%, transparent); }
.pz-g-title {
  position: absolute; top: -12px; left: 10px;
  max-width: 65%; min-width: 46px;
  background: var(--paper-1);
  border: 1px dashed color-mix(in srgb, var(--ink-2) 42%, transparent);
  border-radius: 3px; padding: 1px 9px;
  font-family: var(--font-brush); font-size: 12.5px; color: var(--ink-2);
  outline: none; cursor: text; user-select: text;
  white-space: nowrap; overflow: hidden;
}
.pz-group.sel .pz-g-title { border-color: var(--cinnabar); color: var(--cinnabar); }
.pz-g-title:empty::before { content: attr(data-ph); color: var(--ink-4); }
.pz-g-title:focus { min-width: 90px; white-space: normal; }

/* ---- 连线 ---- */
.pz-l-hit { fill: none; stroke: transparent; pointer-events: stroke; cursor: pointer; }
.pz-l-line { fill: none; stroke: var(--ink-2); stroke-width: 2; pointer-events: none; transition: stroke var(--dur-fast); }
.pz-link:hover .pz-l-line { stroke: var(--ink-0); }
.pz-link.sel .pz-l-line { stroke-width: 3; }
.pz-l-arrow { pointer-events: none; }
.pz-l-label {
  font-family: var(--font-brush); font-weight: 600;
  fill: var(--ink-1); stroke: var(--paper-0); paint-order: stroke;
  pointer-events: none;
}
.pz-l-temp { fill: none; stroke: var(--cinnabar); stroke-width: 2; stroke-dasharray: 6 4; pointer-events: none; }

/* ---- 卡片 ---- */
.pz-card {
  position: absolute;
  background: var(--paper-1);
  border: 1px solid var(--paper-edge);
  border-radius: 4px;
  box-shadow: 0 2px 6px var(--paper-shadow);
  -webkit-user-select: none; user-select: none;
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}
.pz-card:hover { border-color: var(--ink-4); }
.pz-card.sel { border-color: var(--cinnabar); box-shadow: 0 0 0 2px var(--cinnabar-soft), 0 3px 10px var(--paper-shadow); }
.pz-card.target { box-shadow: 0 0 0 2.5px var(--cinnabar), 0 3px 10px var(--paper-shadow); }
.pz-c-bar { position: absolute; left: 0; top: 0; bottom: 0; width: 3.5px; border-radius: 4px 0 0 4px; }
.pz-c-main { position: absolute; inset: 0; padding: 9px 12px 8px 13px; display: flex; flex-direction: column; gap: 2px; }
.pz-c-title {
  font-family: var(--font-brush); font-size: 15px; line-height: 1.35;
  color: var(--ink-0); padding-right: 20px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.pz-c-sub { font-family: var(--font-mono); font-size: 10px; color: var(--ink-3); letter-spacing: .3px; }
.pz-c-body {
  flex: 1; min-height: 0; overflow: hidden;
  font-size: 12px; line-height: 1.65; color: var(--ink-2);
  margin-top: 3px; overflow-wrap: anywhere;
}
.pz-c-glyph {
  position: absolute; top: 6px; right: 7px;
  font-family: var(--font-brush); font-size: 10px;
  border: 1px solid; border-radius: 3px; padding: 0 3px; opacity: .75;
  pointer-events: none;
}
.pz-c-info {
  position: absolute; bottom: 3px; left: 50%; transform: translateX(-50%);
  border: 1px solid var(--paper-edge); background: var(--paper-2);
  color: var(--ink-2); font-size: 10.5px; letter-spacing: 1px;
  padding: 1px 9px; border-radius: 10px;
  opacity: 0; transition: opacity var(--dur-fast);
}
.pz-card:hover .pz-c-info { opacity: 1; }
.pz-c-info:hover { border-color: var(--cinnabar); color: var(--cinnabar); }
/* 便签 */
.pz-card.kind-note {
  background: color-mix(in srgb, var(--gold) 12%, var(--paper-1));
  border-color: color-mix(in srgb, var(--gold) 45%, var(--paper-edge));
}
.pz-c-drag {
  position: absolute; top: 0; left: 0; right: 0; height: 17px;
  display: flex; align-items: center; justify-content: center;
  font-size: 9px; color: color-mix(in srgb, var(--gold) 80%, var(--ink-3));
  cursor: grab; border-bottom: 1px dashed color-mix(in srgb, var(--gold) 30%, transparent);
  border-radius: 4px 4px 0 0;
}
.pz-c-note {
  position: absolute; inset: 22px 10px 8px 11px;
  font-family: var(--font-brush); font-size: 13.5px; line-height: 1.7;
  color: var(--ink-1); outline: none; overflow-y: auto;
  cursor: text; user-select: text; -webkit-user-select: text;
}
.pz-c-note:empty::before { content: '批注…'; color: var(--ink-4); }
/* 缩放手柄 / 连接桩 */
.pz-resize {
  position: absolute; right: 1px; bottom: 1px; width: 13px; height: 13px;
  cursor: nwse-resize; opacity: 0; transition: opacity var(--dur-fast);
  background: repeating-linear-gradient(135deg, transparent 0 3px, var(--ink-4) 3px 4px);
  border-radius: 0 0 3px 0;
}
.pz-card:hover .pz-resize, .pz-card.sel .pz-resize,
.pz-group:hover .pz-resize, .pz-group.sel .pz-resize { opacity: .8; }
.pz-port {
  position: absolute; width: 9px; height: 9px; border-radius: 50%;
  background: var(--paper-1); border: 1.5px solid var(--cinnabar);
  opacity: 0; transition: opacity var(--dur-fast);
  cursor: crosshair;
}
.pz-card:hover .pz-port, .pz-card.sel .pz-port { opacity: 1; }
.pz-port[data-p="n"] { top: -5px; left: 50%; transform: translateX(-50%); }
.pz-port[data-p="s"] { bottom: -5px; left: 50%; transform: translateX(-50%); }
.pz-port[data-p="w"] { left: -5px; top: 50%; transform: translateY(-50%); }
.pz-port[data-p="e"] { right: -5px; top: 50%; transform: translateY(-50%); }

/* ---- 工具栏 / 样式条 / 空态 / 提示 / 撤销 ---- */
#pz-toolbar {
  position: absolute; top: 14px; right: 16px; z-index: 12;
  display: flex; align-items: center; gap: 3px;
  background: color-mix(in srgb, var(--paper-1) 90%, transparent);
  border: 1px solid var(--paper-edge); border-radius: var(--radius-paper);
  backdrop-filter: blur(6px);
  box-shadow: 0 2px 10px var(--paper-shadow);
  padding: 4px 6px;
}
#pz-toolbar button {
  border: none; background: transparent; color: var(--ink-2);
  font-size: 12px; font-family: var(--font-brush); letter-spacing: 1px;
  padding: 4px 8px; border-radius: 3px; white-space: nowrap;
  transition: all var(--dur-fast);
}
#pz-toolbar button:hover { background: var(--paper-2); color: var(--ink-0); }
#pz-toolbar .pz-zoom {
  font-family: var(--font-mono); font-size: 11px; color: var(--ink-3);
  width: 40px; text-align: center; cursor: pointer;
}
#pz-toolbar .pz-zoom:hover { color: var(--cinnabar); }
#pz-toolbar .pz-tb-sep { width: 1px; height: 16px; background: var(--paper-edge); margin: 0 3px; }
#pz-toolbar .pz-tb-clear.arm { background: var(--cinnabar); color: var(--seltx); }
#pz-stylebar {
  position: absolute; z-index: 13; display: none;
  flex-direction: column; gap: 7px;
  width: 238px; padding: 10px 12px;
  background: var(--paper-1); border: 1px solid var(--paper-edge);
  border-radius: var(--radius-paper);
  box-shadow: 0 8px 30px var(--paper-shadow);
}
#pz-stylebar.open { display: flex; }
.pz-sb-row { display: flex; align-items: center; gap: 8px; }
.pz-sb-lab { width: 30px; flex: none; font-size: 11px; color: var(--ink-4); letter-spacing: 2px; }
.pz-sb-seg { display: flex; flex: 1; border: 1px solid var(--paper-edge); border-radius: 4px; overflow: hidden; }
.pz-sb-seg button {
  flex: 1; border: none; background: transparent; color: var(--ink-2);
  font-size: 11.5px; padding: 4px 0;
  display: flex; align-items: center; justify-content: center; gap: 4px;
  transition: all var(--dur-fast);
}
.pz-sb-seg button + button { border-left: 1px solid var(--paper-edge); }
.pz-sb-seg button:hover { background: var(--paper-2); color: var(--ink-0); }
.pz-sb-seg button.on { background: var(--cinnabar); color: var(--seltx); }
.pz-sb-seg button i { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
.pz-sb-seg button.on i { outline: 1px solid rgba(255, 255, 255, .8); }
.pz-sb-last { margin-top: 2px; }
.pz-sb-label {
  flex: 1; min-width: 0; border: 1px solid var(--paper-edge); border-radius: 4px;
  background: var(--paper-2); color: var(--ink-0); font-size: 12px;
  padding: 4px 9px; outline: none;
}
.pz-sb-label:focus { box-shadow: 0 0 0 2px var(--cinnabar-soft); }
.pz-sb-del {
  border: 1px solid var(--paper-edge); background: transparent; color: var(--ink-3);
  font-size: 11.5px; padding: 4px 9px; border-radius: 4px; white-space: nowrap;
  transition: all var(--dur-fast);
}
.pz-sb-del:hover { border-color: var(--cinnabar); color: var(--cinnabar); }
#pz-empty {
  position: absolute; inset: 0; z-index: 5;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 9px; pointer-events: none;
}
#pz-empty .pz-empty-title {
  font-family: var(--font-brush); font-size: 26px; letter-spacing: 12px;
  color: var(--ink-2); margin-bottom: 10px; padding-left: 12px;
}
#pz-empty .pz-empty-row { font-size: 13px; color: var(--ink-3); letter-spacing: 1px; }
#pz-empty .pz-empty-tip { font-size: 11px; color: var(--ink-4); margin-top: 14px; letter-spacing: 2px; }
#pz-hint {
  position: absolute; bottom: 14px; left: 50%; transform: translateX(-50%);
  font-size: 12px; color: var(--ink-3); letter-spacing: 1px;
  background: color-mix(in srgb, var(--paper-1) 85%, transparent);
  padding: 5px 16px; border-radius: 14px;
  border: 1px solid var(--paper-edge);
  pointer-events: none; z-index: 10;
}
#pz-undo {
  position: absolute; bottom: 46px; left: 50%;
  transform: translateX(-50%) translateY(8px);
  display: flex; align-items: center; gap: 12px;
  background: var(--ink-1); color: var(--paper-1);
  font-size: 12.5px; letter-spacing: 1px;
  padding: 7px 8px 7px 16px; border-radius: 18px;
  z-index: 14; opacity: 0; pointer-events: none;
  transition: opacity var(--dur-fast) var(--ease-brush), transform var(--dur-fast) var(--ease-brush);
}
#pz-undo.show { opacity: .95; transform: translateX(-50%) translateY(0); pointer-events: auto; }
#pz-undo button {
  border: 1px solid color-mix(in srgb, var(--paper-1) 45%, transparent);
  background: transparent; color: var(--paper-1);
  font-size: 11.5px; padding: 2px 11px; border-radius: 12px;
}
#pz-undo button:hover { background: var(--cinnabar); border-color: var(--cinnabar); }


/* ============ 全局搜索结果 ============ */
#search-pop {
  position: fixed; top: calc(var(--topbar-h) + 6px); right: 18px;
  width: min(380px, calc(100vw - 20px));
  max-height: 70vh; overflow-y: auto;
  background: var(--paper-1);
  border: 1px solid var(--paper-edge);
  border-radius: var(--radius-paper);
  box-shadow: 0 10px 40px var(--paper-shadow);
  z-index: var(--z-search);
  visibility: hidden; opacity: 0;
  transform: translateY(-6px);
  transition: opacity var(--dur-fast) var(--ease-brush), transform var(--dur-fast) var(--ease-brush),
              visibility 0s linear var(--dur-fast);
  padding: 6px;
}
#search-pop.open {
  visibility: visible; opacity: 1;
  transform: translateY(0);
  transition: opacity var(--dur-fast) var(--ease-brush), transform var(--dur-fast) var(--ease-brush);
}
.sp-item {
  display: block; width: 100%; text-align: left;
  border: none; background: transparent;
  padding: 9px 12px; border-radius: 3px;
  cursor: pointer;
}
.sp-item:hover { background: var(--paper-2); }
.sp-item .sp-title { font-size: 14px; color: var(--ink-0); font-family: var(--font-brush); }
.sp-item .sp-meta { font-size: 11.5px; color: var(--ink-3); margin-top: 2px; }
.sp-item .sp-snippet { font-size: 12px; color: var(--ink-2); margin-top: 3px; line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.sp-item .sp-snippet mark { background: var(--cinnabar-soft); color: var(--cinnabar-deep); }
.sp-empty { padding: 24px; text-align: center; color: var(--ink-3); font-size: 13px; }

/* ============ 卷轴开幕动画 ============ */
#curtain {
  position: fixed; inset: 0; z-index: var(--z-curtain);
  pointer-events: none;
  display: flex;
}
#curtain .c-half { flex: 1; background: linear-gradient(to bottom, var(--paper-0), var(--paper-2)); position: relative; }
#curtain .c-half::after {
  content: ''; position: absolute; inset: 0;
  background-image: var(--brush-texture);
}
#curtain.left  { border-right: 2px solid var(--cinnabar); }
#curtain.gone .c-half { transition: transform 1.6s var(--ease-brush); }
#curtain.gone .c-half.l { transform: translateX(-101%); }
#curtain.gone .c-half.r { transform: translateX(101%); }
#curtain .c-mark {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-brush); font-size: 34px; letter-spacing: 14px;
  color: var(--ink-1);
  writing-mode: vertical-rl;
  opacity: 0; animation: markIn 1s .3s forwards;
  white-space: nowrap;
}
@keyframes markIn { to { opacity: .9; } }

/* ============ 滚动条 ============ */
::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--paper-edge); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--ink-4); }

/* ============ 提示浮层 ============ */
#toast {
  position: fixed; bottom: 80px; left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--ink-1); color: var(--paper-1);
  font-size: 13px; letter-spacing: 1px;
  padding: 9px 22px; border-radius: 20px;
  z-index: var(--z-modal);
  opacity: 0; pointer-events: none;
  transition: opacity var(--dur-mid) var(--ease-brush), transform var(--dur-mid) var(--ease-brush);
}
#toast.show { opacity: .92; transform: translateX(-50%) translateY(0); }

/* ============ 响应式 ============ */
@media (max-width: 900px) {
  #topbar .brand .subtitle { display: none; }
  #global-search { width: 150px; }
  #global-search .kbd { display: none; }
  #src-switch button { padding: 6px 8px; font-size: 11.5px; letter-spacing: 0; }
  :root { --drawer-w: 100vw; --sidebar-w: 210px; }
}

/* 手机/窄窗(≤640px):顶栏收缩为 色点切换 + 图标搜索;目录钮/侧栏滑出 */
@media (max-width: 640px) {
  #topbar { gap: 8px; padding: 0 10px; }
  #topbar .brand .title { font-size: 17px; letter-spacing: 1px; }
  #help-btn { display: none; }
  /* 来源切换:藏字留色点(比对=双色点),hover/激活态提示见 title 与 toast */
  #src-switch .sst { display: none; }
  #src-switch button { padding: 8px 9px; }
  #global-search { width: 118px; padding: 5px 10px; }
  #global-search input { font-size: 13px; }
  #global-search input::placeholder { color: transparent; }   /* 空间不足,聚焦后输入即知 */

  /* Wiki 目录:浮动按钮 + 侧栏滑出 */
  #wiki-toc-btn {
    display: inline-block;
    position: absolute; left: 10px; top: 10px; z-index: 25;
    border: 1px solid var(--paper-edge);
    background: color-mix(in srgb, var(--paper-1) 92%, transparent);
    color: var(--ink-2); font-size: 12.5px;
    padding: 5px 11px; border-radius: var(--radius-paper);
    box-shadow: 0 2px 10px var(--paper-shadow);
  }
  #wiki-sidebar {
    position: absolute; z-index: 30; height: 100%;
    width: min(78vw, var(--sidebar-w));
    transform: translateX(-102%);
    transition: transform var(--dur-mid) var(--ease-brush);
    background: var(--paper-1);
    box-shadow: 8px 0 30px var(--paper-shadow);
  }
  #wiki-sidebar.open { transform: translateX(0); }
  #wiki-main { padding: 46px 16px 80px; }
  #wiki-content h1 { font-size: 24px; }

  /* 抽屉全宽已是 100vw;正文留白收紧 */
  #drawer .drawer-body { padding: 12px 16px 40px; }
  #drawer .drawer-head { padding: 14px 16px 10px; }

  /* 时间轴:图例面板收窄 */
  #tl-filters { right: 8px; top: 8px; max-width: 46vw; }

  /* 图谱:工具栏换行限制、力度面板宽度自适应(默认折叠由 JS 处理) */
  #graph-toolbar { max-width: calc(100vw - 60px); }
  #graph-forces { width: auto; max-width: 52vw; }
  #graph-forces .gf-label { width: 58px; }
  #graph-hint { display: none; }

  /* 地图:滑杆条宽度放大到近全宽 */
  #map-slider-wrap { width: calc(100% - 20px); bottom: 12px; padding: 10px 14px 8px; }
  #map-legend { font-size: 11.5px; padding: 8px 10px; }
  .map-pop { max-width: 62vw; }
  #city-strip { bottom: 84px; width: calc(100% - 16px); }

  /* 拼图:卡片库改浮动抽屉(默认收起),工具栏收窄换行 */
  #pz-lib-btn {
    display: inline-block;
    position: absolute; left: 10px; top: 10px; z-index: 25;
    border: 1px solid var(--paper-edge);
    background: color-mix(in srgb, var(--paper-1) 92%, transparent);
    color: var(--ink-2); font-size: 12.5px;
    padding: 5px 11px; border-radius: var(--radius-paper);
    box-shadow: 0 2px 10px var(--paper-shadow);
  }
  #pz-library {
    position: absolute; z-index: 30; height: 100%;
    width: min(78vw, var(--sidebar-w));
    transform: translateX(-102%);
    transition: transform var(--dur-mid) var(--ease-brush);
    background: var(--paper-1);
    box-shadow: 8px 0 30px var(--paper-shadow);
  }
  #pz-library.open { transform: translateX(0); }
  #pz-toolbar { flex-wrap: wrap; justify-content: flex-end; max-width: calc(100vw - 90px); right: 8px; }
  #pz-hint { display: none; }
  #pz-empty .pz-empty-title { font-size: 20px; letter-spacing: 8px; }
  #pz-empty .pz-empty-row { font-size: 12px; }
}

/* ============ 减动效偏好 ============ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-delay: 0ms !important;
    transition-duration: .01ms !important;
    transition-delay: 0ms !important;
  }
  #curtain { display: none; }
}

/* ============ 时间轴编辑脚手架 ============ */
.tl-editmode .user-card rect { stroke: var(--gold); stroke-width: 1.6; }
#tl-editor {
  position: absolute; z-index: 60; top: 74px; left: 50%; transform: translateX(-50%);
  width: 340px; background: var(--paper-1); border: 1px solid var(--paper-edge);
  border-radius: var(--radius-paper); box-shadow: 0 10px 32px var(--paper-shadow);
  padding: 14px 16px 12px; display: none;
}
#tl-editor.open { display: block; }
#tl-editor h3 { margin: 0 0 10px; font-size: 14px; color: var(--ink-1); }
#tl-editor label { display: block; margin: 8px 0 3px; font-size: 11.5px; color: var(--ink-3); }
#tl-editor input, #tl-editor select {
  width: 100%; box-sizing: border-box; padding: 5px 8px; font-size: 13px;
  border: 1px solid var(--paper-edge); border-radius: 3px;
  background: var(--paper-0); color: var(--ink-1); font-family: var(--font-body);
}
#tl-editor .tle-actions { margin-top: 12px; display: flex; gap: 8px; }
#tl-editor .tle-actions button {
  flex: 1; padding: 6px 0; font-size: 12.5px; cursor: pointer;
  border: 1px solid var(--paper-edge); border-radius: 3px;
  background: var(--paper-2); color: var(--ink-1); font-family: var(--font-body);
}
#tl-editor .tle-actions button.primary { background: var(--cinnabar); border-color: var(--cinnabar); color: var(--seltx); }
#tl-editor .tle-actions button.danger { color: var(--cinnabar); }
#tl-editor .tle-status { margin-top: 8px; font-size: 11.5px; color: var(--ink-3); min-height: 15px; }

/* ============ 驼金书签面（B4 主题：阅读表面局部重定义） ============
   阅读表面（抽屉/地图弹层/搜索弹层/帮助卡/时间轴编辑面板/拼图内容卡）
   底色转驼金，并在此作用域内重定义墨色阶梯与强调色——
   嵌套规则继续引用 var(--ink-*) 等，自动翻成深墨，无需逐条改写。
   语义：蓝页＝导航与结构，驼金页＝抽出来细读的书签。 */
#drawer, .map-pop, #search-pop, #kbd-help .kh-card, #tl-editor, .pz-card, #wiki-main {
  --paper-1: var(--tan);
  --paper-2: var(--tan-2);
  --paper-edge: rgba(32,24,22,.30);
  --paper-shadow: rgba(20,12,4,.35);
  --ink-0: #201816;
  --ink-1: #332A1E;
  --ink-2: rgba(32,24,22,.78);
  --ink-3: rgba(32,24,22,.58);
  --ink-4: rgba(32,24,22,.38);
  --ink-wash: rgba(32,24,22,.10);
  --cinnabar: #0F2D6E;       /* 驼金面上的强调：深钴蓝（封面蓝块的墨） */
  --cinnabar-deep: #0A1F66;
  --cinnabar-soft: rgba(15,45,110,.14);
  --gold: #8C6A3F;           /* 驼金面上的金：压深防同色溶解 */
  --period-1-soft: rgba(120,90,50,.14);
  --period-2-soft: rgba(30,61,150,.12);
  --period-3-soft: rgba(150,60,50,.12);
  --period-4-soft: rgba(60,110,50,.12);
  --period-5-soft: rgba(110,60,130,.12);
  --period-6-soft: rgba(40,110,105,.12);
  background: var(--tan);
  color: var(--ink-1);
}
/* 拼图便签：驼金面上再浅一档，区分内容卡与便签 */
.pz-card.kind-note { background: var(--tan-2); }