/* ============ 设计变量：亮色（纸张质感） ============ */
:root{
  --bg:#f4f2ed;
  --bg-panel:#fbfaf7;
  --bg-sidebar:#f0eee8;
  --bg-editor:#fffdf9;
  --bg-hover:#e9ebe6;
  --bg-active:#dfe7e1;
  --ink:#20292e;
  --ink-soft:#626b6a;
  --ink-faint:#969c98;
  --line:#dddcd5;
  --line-soft:#e9e7e1;
  --accent:#6f897a;
  --accent-soft:#c8d4cd;
  --highlight:#e8eeea;
  --primary:#20292e;
  --primary-hover:#151c20;
  --primary-ink:#fff;
  --link:#2563eb; /* 内联链接主题适配蓝 */
  --shadow:0 1px 3px rgba(32,41,46,.06), 0 10px 30px rgba(32,41,46,.07);
  --code-bg:#f0ece0;
  --code-border:#d9d2bf;
  --table-head:#f0eee8;
  --radius:6px;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --serif:"Songti SC","Source Han Serif SC","Noto Serif CJK SC","SimSun",Georgia,"Times New Roman",serif;
  --kai:"Kaiti SC","STKaiti","KaiTi","楷体",serif;
  --mono:"JetBrains Mono","Cascadia Code","Consolas","Source Code Pro",monospace;
}

/* ============ 暗色模式 ============ */
[data-theme="dark"]{
  --bg:#171b1c;
  --bg-panel:#1d2324;
  --bg-sidebar:#1a2021;
  --bg-editor:#222829;
  --bg-hover:#29302f;
  --bg-active:#303b36;
  --ink:#eceae4;
  --ink-soft:#aab1ad;
  --ink-faint:#707975;
  --line:#343b39;
  --line-soft:#29302f;
  --accent:#91aa9b;
  --accent-soft:#52685c;
  --highlight:#29332e;
  --primary:#91aa9b;
  --primary-hover:#a0b7aa;
  --primary-ink:#101716;
  --link:#7aa2f7; /* 深色下更亮的蓝，保证可读不刺眼 */
  --shadow:0 1px 3px rgba(0,0,0,.3), 0 4px 16px rgba(0,0,0,.25);
  --code-bg:#000000;
  --code-border:#4a4f4d;
  --table-head:#252c2d;
}

*{box-sizing:border-box;}
html,body{height:100%;margin:0;padding:0;}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:14px;
  -webkit-font-smoothing:antialiased;
  overflow:hidden;
}

/* ============ 整体布局 ============ */
.app{display:flex;height:100vh;min-width:0;}
/* 鉴权前隐藏正文，避免未登录闪现编辑器骨架 */
body.pre-auth .app{visibility:hidden;}

/* ============ 侧边栏 ============ */
.sidebar{
  flex:0 0 260px;
  min-width:240px;
  max-width:340px;
  background:var(--bg-sidebar);
  border-right:none;
  display:flex;
  flex-direction:column;
  min-height:0;
  overflow:hidden;
  user-select:none;
}
/* 侧边栏列宽拖拽条：桌面端可见，移动端隐藏（移动端 sidebar 是抽屉式） */
.sidebar-resizer{
  position:relative;flex:0 0 8px;width:8px;background:var(--line-soft);
  cursor:col-resize;z-index:5;transition:background .12s;
}
.sidebar-resizer::after{content:'';position:absolute;inset:0 -6px;}
.sidebar-resizer::before{
  content:'';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:2px;height:24px;border-radius:2px;background:var(--ink-faint);opacity:.45;transition:opacity .12s,background .12s;
}
.sidebar-resizer:hover,.sidebar-resizer.dragging{background:var(--accent);}
.sidebar-resizer:hover::before,.sidebar-resizer.dragging::before{opacity:1;background:#fff;}
.sidebar input,.sidebar textarea{user-select:text;}
.sidebar-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:10px 12px 8px;
}
.brand-lockup{
  display:flex;
  align-items:center;
  width:85px;
  height:42px;
  min-width:0;
}
.brand-logo{display:block;width:85px;height:auto;max-width:100%;-webkit-user-drag:none;user-select:none;}
.user-avatar img{-webkit-user-drag:none;}
.brand-logo-dark{display:none;}
[data-theme="dark"] .brand-logo-light{display:none;}
[data-theme="dark"] .brand-logo-dark{display:block;}
.icon-btn{
  appearance:none;
  background:transparent;
  border:1px solid transparent;
  color:var(--ink-soft);
  width:30px;height:30px;
  border-radius:6px;
  cursor:pointer;
  font-size:15px;
  display:flex;align-items:center;justify-content:center;
  transition:background .15s,color .15s;
}
.icon-btn:hover{background:var(--bg-hover);color:var(--ink);}

.search-box{padding:0 12px 8px;position:relative;}
.search-box input{
  width:100%;
  height:36px;
  background:var(--bg-editor);
  border:1px solid var(--line);
  border-radius:6px;
  padding:0 38px 0 36px;
  color:var(--ink);
  font-family:var(--sans);
  font-size:13px;
  outline:none;
}
.search-box input:focus{border-color:var(--accent-soft);}
.search-box .search-icon{position:absolute;left:22px;top:10px;width:16px;height:16px;color:var(--ink-faint);pointer-events:none;}
.search-box .search-icon svg{display:block;width:16px;height:16px;}
.sort-toggle{
  position:absolute;right:18px;top:4px;
  width:28px;height:28px;
  display:flex;align-items:center;justify-content:center;
  border:none;background:transparent;
  color:var(--ink-faint);cursor:pointer;border-radius:4px;
  transition:background .12s,color .12s;
}
.sort-toggle:hover{background:var(--bg-hover);color:var(--ink);}
.sort-toggle.active{color:var(--accent);}
.sort-toggle svg{width:15px;height:15px;}
.sort-popover{
  position:absolute;top:42px;right:6px;z-index:50;
  min-width:148px;
  background:var(--bg-editor);
  border:1px solid var(--line);
  border-radius:8px;
  box-shadow:0 4px 16px rgba(0,0,0,.10);
  padding:6px;
}
.sort-popover[hidden]{display:none;}
.sort-popover-title{font-size:11px;color:var(--ink-faint);padding:4px 8px 6px;font-weight:500;}
.sort-popover button[role="option"]{
  display:flex;align-items:center;width:100%;
  padding:7px 8px;border:none;background:transparent;
  color:var(--ink-soft);font-family:var(--sans);font-size:13px;
  cursor:pointer;border-radius:5px;text-align:left;
  transition:background .12s,color .12s;
}
.sort-popover button[role="option"]:hover{background:var(--bg-hover);color:var(--ink);}
.sort-popover button[role="option"][aria-selected="true"]{color:var(--accent);font-weight:500;}
.sort-popover button[role="option"][aria-selected="true"]::before{content:'✓';margin-right:6px;font-size:12px;}
.sort-popover-divider{height:1px;background:var(--line-soft);margin:4px 0;}
.sort-order-toggle{
  display:flex;align-items:center;gap:6px;width:100%;
  padding:7px 8px;border:none;background:transparent;
  color:var(--ink-soft);font-family:var(--sans);font-size:13px;
  cursor:pointer;border-radius:5px;text-align:left;
  transition:background .12s,color .12s;
}
.sort-order-toggle:hover{background:var(--bg-hover);color:var(--ink);}
.sort-order-toggle svg{width:14px;height:14px;transition:transform .18s;}
.sort-order-toggle.asc svg{transform:rotate(180deg);}

.new-row{
  display:flex;
  gap:6px;
  padding:4px 12px 8px;
}
.new-btn{
  flex:1 1 auto;
  margin:0;
  height:34px;
  background:var(--primary);
  color:var(--primary-ink);
  border:none;
  border-radius:6px;
  cursor:pointer;
  font-family:var(--sans);
  font-size:13px;
  font-weight:600;
  display:flex;align-items:center;justify-content:center;gap:6px;
  transition:background .15s,transform .1s;
}
.new-btn:hover{background:var(--primary-hover);}
.new-btn:active{transform:scale(.98);}
.new-folder-btn{
  flex:0 0 auto;
  height:34px;
  padding:0 12px;
  background:var(--bg-editor);
  color:var(--accent);
  border:1px solid var(--line);
  border-radius:6px;
  cursor:pointer;
  font-family:var(--sans);
  font-size:13px;
  font-weight:600;
  display:flex;align-items:center;justify-content:center;gap:6px;
  transition:background .15s,border-color .15s;
}
.new-folder-btn:hover{background:var(--bg-hover);border-color:var(--accent-soft);}

.doc-list{
  flex:1 1 auto;
  width:100%;
  min-width:0;
  overflow-y:auto;
  padding:4px 8px 12px;
}
.doc-list::-webkit-scrollbar{width:8px;}
.doc-list::-webkit-scrollbar-thumb{background:var(--line);border-radius:4px;}

/* ============ 文件夹分组 ============ */
.folder-item{margin-bottom:7px;}
.folder-head{
  display:flex;
  align-items:center;
  gap:6px;
  padding:7px 8px;
  border-radius:6px;
  cursor:pointer;
  user-select:none;
  transition:background .12s;
}
.folder-head:hover{background:var(--bg-hover);}
.folder-arrow{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:14px;height:14px;
  color:var(--ink-faint);
  transition:transform .15s;
}
.folder-arrow svg{display:block;}
.folder-item.expanded .folder-arrow{transform:rotate(90deg);}
.folder-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:18px;height:18px;
  color:var(--accent);
}
.folder-name{
  flex:0 1 auto;
  min-width:0;
  font-size:14px;
  font-weight:650;
  color:var(--ink);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  letter-spacing:.3px;
}
.folder-name-input{
  flex:1 1 auto;
  min-width:0;
  height:24px;
  padding:0 6px;
  background:var(--bg-editor);
  border:1px solid var(--accent-soft);
  border-radius:4px;
  color:var(--ink);
  font-family:var(--sans);
  font-size:14px;
  font-weight:650;
  outline:none;
}
.folder-count{
  position:relative;
  flex:0 0 auto;
  align-self:center;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:18px;
  min-width:18px;
  padding:0 6px;
  border:none;
  border-radius:9px;
  background:var(--bg-active);
  color:var(--ink-faint);
  font-family:var(--sans);
  font-size:11px;
  font-weight:600;
  font-variant-numeric:tabular-nums;
  line-height:18px;
  text-align:center;
  cursor:pointer;
  overflow:hidden;
  transition:background .12s, color .12s;
}
.folder-count .fc-num{ transition:opacity .1s; }
.folder-count .fc-add{
  position:absolute; inset:0;
  display:flex; align-items:center; justify-content:center;
  opacity:0; transition:opacity .1s;
}
.folder-count .fc-add svg{display:block;}
.folder-count:hover{background:var(--accent-soft);color:var(--accent);}
@media(hover:hover){
  .folder-head:hover .folder-count{background:var(--bg-active);color:var(--ink);}
  .folder-head:hover .folder-count .fc-num{opacity:0;}
  .folder-head:hover .folder-count .fc-add{opacity:1;}
  .folder-head:hover .folder-count:hover{background:var(--accent-soft);color:var(--accent);}
}
.folder-menu{
  margin-left:auto;
  flex:0 0 auto;
  width:20px;height:20px;
  border:none;
  background:transparent;
  color:var(--ink-faint);
  border-radius:4px;
  cursor:pointer;
  font-size:13px;
  display:flex;
  align-items:center;justify-content:center;
  opacity:0;pointer-events:none;
  transition:opacity .12s;
}
.folder-menu svg{width:14px;height:14px;display:block;}
.folder-head:hover .folder-menu{opacity:1;pointer-events:auto;}
.folder-menu:hover{background:var(--bg-active);color:var(--ink);}
.folder-docs{
  display:none;
  min-width:0;
  max-width:100%;
  margin:2px 0 0 17px;
  padding:2px 0 4px 8px;
  border-left:1px solid var(--line);
  transition:background .15s;
}
.folder-item.expanded .folder-docs{display:block;}
.folder-item.expanded:not(.unfiled) > .folder-head{background:color-mix(in srgb, var(--bg-hover) 42%, transparent);}
.folder-item.unfiled{margin-top:10px;}
.folder-item.unfiled .folder-name{font-weight:500;color:var(--ink-faint);}
.folder-empty{
  padding:6px 12px;
  font-size:11px;
  color:var(--ink-faint);
}
.folder-docs.drag-over{
  background:var(--highlight);
  border-left-color:var(--accent-soft);
  border-left-style:solid;
}
.folder-item.drag-over > .folder-head,
.folder-head.drag-over{
  background:var(--highlight);
  box-shadow:inset 0 0 0 1px var(--accent-soft);
}
/* 文件夹排序拖动：在 head 上方/下方显示插入指示线 */
.folder-head.sort-before{box-shadow:inset 0 2px 0 0 var(--accent);}
.folder-head.sort-after{box-shadow:inset 0 -2px 0 0 var(--accent);}
.folder-head[draggable="true"]{cursor:grab;}
.folder-head[draggable="true"]:active{cursor:grabbing;}
.doc-item.dragging{opacity:.4;}
.doc-item.cutting{opacity:.48;}
.folder-item.unfiled .folder-head{cursor:default;}
.folder-item.unfiled .folder-head:hover{background:transparent;}
.folder-item.unfiled.drag-over .folder-head{background:var(--highlight);}

/* 文件夹右键菜单 */
.folder-context-menu{
  position:fixed;
  z-index:9999;
  box-sizing:border-box;
  min-width:140px;
  max-width:calc(100vw - 16px);
  max-height:calc(100vh - 16px);
  overflow-y:auto;
  overscroll-behavior:contain;
  background:var(--bg-editor);
  border:1px solid var(--line);
  border-radius:6px;
  box-shadow:var(--shadow);
  padding:4px 0;
  font-size:12.5px;
}
.folder-context-menu .fcm-item{
  padding:7px 14px;
  cursor:pointer;
  color:var(--ink);
  transition:background .1s;
}
.folder-context-menu .fcm-item:hover{background:var(--bg-hover);}
.folder-context-menu .fcm-item.danger{color:#c44;}
.folder-context-menu .fcm-item.danger:hover{background:rgba(196,68,68,.1);}
.folder-context-menu .fcm-item.disabled{
  color:var(--ink-faint);
  cursor:default;
}
.folder-context-menu .fcm-item.disabled:hover{background:transparent;}

/* “移动到”子菜单 */
.folder-context-menu.move-menu{min-width:180px;max-width:260px;}
.folder-context-menu.move-menu .fcm-item{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
}
.folder-context-menu.move-menu .fcm-item.current{
  color:var(--ink-faint);
  cursor:default;
}
.folder-context-menu.move-menu .fcm-item.current:hover{background:transparent;}
.folder-context-menu.move-menu .move-current-tag{
  font-size:10.5px;
  color:var(--ink-faint);
  border:1px solid var(--line);
  border-radius:3px;
  padding:0 4px;
  flex-shrink:0;
}
.folder-context-menu.move-menu .fcm-item.unfiled-item{
  border-top:1px solid var(--line);
  margin-top:2px;
  padding-top:8px;
}

.shortcut-overlay{
  position:fixed;
  inset:0;
  z-index:3500;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:24px;
  background:rgba(35,32,27,.28);
  backdrop-filter:blur(2px);
}
.shortcut-overlay[hidden]{display:none;}
.shortcut-panel{
  width:min(760px,100%);
  max-height:min(720px,86vh);
  overflow:hidden;
  background:var(--bg-panel);
  color:var(--ink);
  border:1px solid var(--border);
  border-radius:8px;
  box-shadow:0 18px 48px rgba(30,25,18,.22);
}
.shortcut-head{
  height:52px;
  padding:0 18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  border-bottom:1px solid var(--border);
}
.shortcut-head strong{
  font-size:16px;
  letter-spacing:0;
}
.shortcut-close{
  width:30px;
  height:30px;
  border:none;
  border-radius:6px;
  background:transparent;
  color:var(--ink-soft);
  font-size:22px;
  line-height:1;
  cursor:pointer;
  display:flex;align-items:center;justify-content:center;
}
.shortcut-close svg{width:18px;height:18px;display:block;}
.shortcut-close:hover{background:var(--bg-hover);color:var(--ink);}
.shortcut-body{
  max-height:calc(min(720px,86vh) - 52px);
  overflow:auto;
  padding:18px;
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px 22px;
}
.shortcut-section h3{
  margin:0 0 10px;
  font-size:13px;
  color:var(--ink-soft);
  letter-spacing:0;
}
.shortcut-row{
  min-height:32px;
  display:grid;
  grid-template-columns:minmax(150px,auto) 1fr;
  align-items:center;
  gap:14px;
  padding:5px 0;
  border-top:1px solid rgba(120,105,80,.14);
}
.shortcut-row:first-of-type{border-top:none;}
.shortcut-row kbd{
  justify-self:start;
  padding:4px 7px;
  border:1px solid var(--border);
  border-bottom-color:var(--ink-faint);
  border-radius:5px;
  background:var(--bg-editor);
  color:var(--ink);
  font-family:var(--mono);
  font-size:11px;
  font-weight:600;
  white-space:nowrap;
  box-shadow:0 1px 0 rgba(0,0,0,.08);
}
.shortcut-row span{
  color:var(--ink);
  font-size:13px;
  line-height:1.35;
}

.doc-item{
  min-width:0;
  max-width:100%;
  overflow:hidden;
  padding:9px 10px;
  border-radius:6px;
  cursor:grab;
  margin-bottom:2px;
  transition:background .12s;
  position:relative;
  touch-action:manipulation; /* 消除移动端 300ms 点击延迟，单击立即生效 */
}
.doc-item:active{cursor:grabbing;}
.doc-item:hover{background:var(--bg-hover);}
.doc-item.active{background:var(--bg-active);}
.doc-item .doc-title{
  display:flex;
  align-items:center;
  gap:4px;
  min-width:0;
  max-width:100%;
  font-size:13px;
  color:var(--ink);
  font-weight:500;
  padding-right:0;
  transition:padding-right .12s;
}
.doc-item:hover .doc-title{
  padding-right:56px;
}
.doc-item .doc-title-text{
  flex:1 1 auto;
  min-width:0;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.doc-item .doc-pin{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  color:var(--accent);
  opacity:.85;
}
.doc-item .doc-star{
  flex:0 0 auto;
  display:none;
  align-items:center;
  justify-content:center;
  width:18px;height:18px;
  padding:0;
  border:none;
  background:transparent;
  color:var(--ink-faint);
  border-radius:4px;
  cursor:pointer;
  transition:color .12s, background .12s;
}
.doc-item:hover .doc-star{display:inline-flex;}
.doc-item .doc-star:hover{color:var(--accent);background:var(--accent-soft);}
.doc-item .doc-star.active{display:inline-flex;color:#e8a317;}
.doc-item .doc-star.active svg{fill:currentColor;}
.doc-item .doc-meta{
  font-size:11px;
  color:var(--ink-faint);
  margin-top:3px;
}
.doc-item .doc-del{
  position:absolute;
  right:6px;top:7px;
  width:22px;height:22px;
  border:none;
  background:transparent;
  color:var(--ink-faint);
  border-radius:4px;
  cursor:pointer;
  font-size:14px;
  display:flex;
  align-items:center;justify-content:center;
  opacity:0;pointer-events:none;
  transition:opacity .12s;
}
.doc-item .doc-menu{
  position:absolute;
  right:30px;top:7px;
  width:22px;height:22px;
  border:none;
  background:transparent;
  color:var(--ink-faint);
  border-radius:4px;
  cursor:pointer;
  font-size:14px;
  display:flex;
  align-items:center;justify-content:center;
  opacity:0;pointer-events:none;
  transition:opacity .12s;
}
.doc-item:hover .doc-del,
.doc-item:hover .doc-menu{opacity:1;pointer-events:auto;}
.doc-item .doc-menu:hover{background:rgba(0,0,0,.08);color:var(--ink);}
.doc-item .doc-del:hover{background:rgba(0,0,0,.1);color:#c44;}
.doc-item .doc-del svg,.doc-item .doc-menu svg{width:14px;height:14px;display:block;}
.doc-item .doc-snippet{font-size:11px;color:var(--ink-soft);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}

/* 搜索无结果空状态 */
.search-empty{
  padding:48px 20px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:6px;
  color:var(--ink-faint);
  text-align:center;
}
.search-empty svg{width:36px;height:36px;color:var(--ink-faint);opacity:.6;margin-bottom:6px;}
.search-empty-title{font-size:13px;color:var(--ink-soft);font-weight:500;}
.search-empty-hint{font-size:11.5px;color:var(--ink-faint);}

/* ============ 主区域 ============ */
.main{
  flex:1 1 auto;
  display:flex;
  flex-direction:column;
  min-width:0;
  background:var(--bg);
}

/* ============ 工具栏 ============ */
.toolbar{
  flex:0 0 auto;
  display:flex;
  align-items:center;
  flex-wrap:nowrap;
  gap:2px;
  padding:8px 14px;
  background:var(--bg-panel);
  border-bottom:1px solid var(--line);
  font-size:13px;
}
.tb-group{
  display:flex;align-items:center;gap:2px;
  flex:0 0 auto;
  min-width:max-content;
  padding:0 8px;
  border-right:1px solid var(--line);
  height:30px;
}
.tb-group:last-child{border-right:none;}
.tb-btn{
  appearance:none;background:transparent;
  border:1px solid transparent;
  color:var(--ink-soft);
  height:32px;min-width:34px;padding:0 8px;
  border-radius:5px;cursor:pointer;
  font-family:var(--sans);font-size:13px;
  display:inline-flex;align-items:center;justify-content:center;gap:4px;
  white-space:nowrap;
  word-break:keep-all;
  overflow-wrap:normal;
  transition:background .12s,color .12s;
  user-select:none;
}
.tb-btn svg{width:17px;height:17px;}
.tb-btn .tb-chevron{width:10px;height:10px;opacity:.55;}
.tb-btn .align-icon{display:block;}
.tb-btn:hover{background:var(--highlight);color:var(--ink);}
.tb-btn:active{background:var(--bg-hover);}
.tb-btn.active{background:var(--bg-active);color:var(--ink);border-color:var(--line);}
.tb-btn.loading{pointer-events:none;color:var(--ink-faint);position:relative;}
.tb-btn.loading > svg:not(.tb-spinner){visibility:hidden;}
.tb-btn.loading > svg:not(.tb-spinner) ~ .caret{visibility:hidden;}
.tb-spinner{
  display:none;
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:16px;height:16px;
  animation:tb-spin .8s linear infinite;
  pointer-events:none;
}
.tb-btn.loading .tb-spinner{display:block;}
.tb-spinner circle{stroke:currentColor;stroke-width:2.5;fill:none;stroke-linecap:round;}
@keyframes tb-spin{from{transform:rotate(0)}to{transform:rotate(360deg)}}
.tb-select{
  height:32px;border:1px solid var(--line);
  background:var(--bg-editor);color:var(--ink);
  border-radius:4px;font-family:var(--sans);font-size:13px;
  padding:0 6px;cursor:pointer;
}

/* ============ 编辑区 ============ */
.editor-wrap{
  flex:1 1 auto;
  overflow:auto;
  position:relative;
  background:var(--bg);
  padding:36px 24px 80px;
}
/* 文档切换加载遮罩：避免网络慢时旧内容闪烁 */
.editor-wrap.editor-loading::before{
  content:'';
  position:absolute;
  inset:0;
  background:var(--bg);
  z-index:5;
  pointer-events:auto;
}
.editor-wrap.editor-loading::after{
  content:'加载中…';
  position:absolute;
  top:50%;left:50%;
  transform:translate(-50%,-50%);
  color:var(--ink-faint);
  font-size:14px;
  letter-spacing:.5px;
  z-index:6;
  pointer-events:none;
}
.document-shell{
  max-width:780px;
  margin:0 auto;
  background:var(--bg-editor);
  border:1px solid var(--line);
  border-radius:8px;
  box-shadow:var(--shadow);
  min-height:calc(100vh - 210px);
}
.editor{
  width:100%;
  margin:0;
  padding:12px 70px 60px;
  background:transparent;
  border:none;
  border-radius:0;
  box-shadow:none;
  min-height:calc(100vh - 350px);
  outline:none;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  caret-color:var(--accent);
  overflow-wrap:anywhere;  /* 长字符串/URL 自动换行，不撑开信纸 */
  overflow-x:clip;         /* 兜底：漏网的超宽内容被裁剪，绝不穿出信纸；clip 不触发滚动条，padding-right 不会失效 */
}
.editor:empty:before{
  content:attr(data-placeholder);
  color:var(--ink-faint);
  font-style:italic;
  pointer-events:none;
}
/* 防止超长字符串/URL 撑破信纸：所有文本容器强制可在任意点断行。
   overflow-wrap 不是继承属性，需显式作用于子元素。
   <pre> 除外——代码块保持横向滚动，不断行。 */
.editor p,.editor div,.editor li,.editor blockquote,
.editor h1,.editor h2,.editor h3,.editor h4,.editor h5,.editor h6,
.editor td,.editor th{overflow-wrap:anywhere;}
.document-shell:focus-within{border-color:var(--accent-soft);}

/* 字体切换：通过 body[data-editor-font] 控制 */
body[data-editor-font="serif"] .editor{font-family:var(--serif);}
body[data-editor-font="kai"] .editor{font-family:var(--kai);}
body[data-editor-font="mono"] .editor{font-family:var(--mono);font-size:15px;}

/* 编辑区内排版 */
.editor h1{font-size:1.9em;font-weight:700;line-height:1.4;margin:1.2em 0 .6em;}
.editor h2{font-size:1.5em;font-weight:700;line-height:1.4;margin:1.1em 0 .5em;}
.editor h3{font-size:1.2em;font-weight:700;line-height:1.4;margin:1em 0 .4em;}
.editor h4{font-size:1.05em;font-weight:600;margin:.9em 0 .35em;}
/* 标题内 strong 继承标题字重：避免手动加粗让同一层级标题粗细不一，观感混乱 */
.editor h1 strong,.editor h1 b,
.editor h2 strong,.editor h2 b,
.editor h3 strong,.editor h3 b,
.editor h4 strong,.editor h4 b,
.editor h5 strong,.editor h5 b,
.editor h6 strong,.editor h6 b{font-weight:inherit;}
.editor p{margin:.6em 0;}
.pm-plain-text-paste{white-space:pre-wrap;overflow-wrap:anywhere;}
.editor blockquote{
  margin:.8em 0;padding:.4em 1em .4em 1.1em;
  border-left:3px solid var(--accent-soft);
  background:var(--highlight);color:var(--ink-soft);
  border-radius:0 4px 4px 0;font-style:italic;
}
.editor ul,.editor ol{margin:.6em 0;padding-left:1.8em;}
.editor li{margin:.25em 0;}
.editor hr{border:none;border-top:1px solid var(--line);margin:1.6em 0;}

/* ============ 有序列表 CSS Counter 编号 ============
   背景：浏览器原生 <ol> 编号在 contentEditable 中间插入/删除 li 时会乱
   （出现两个 3、不递增等 bug），无法可靠修复。
   方案：隐藏原生编号，用 CSS counter 自己渲染。
   优势：编号完全基于 DOM 位置，插入/删除自动正确；嵌套自动多级编号。
   适用：编辑器、分享阅读区、分享编辑区、导出 HTML（.doc）
*/
:where(.editor, .share-reader, .share-editor, .doc) ol{
  list-style:none;
  counter-reset:pm-ol;
  padding-left:2em;
}
/* 防御粘贴内容自带的内联 list-style 或 style 标签覆盖，确保 ::marker 不显示 */
:where(.editor, .share-reader, .share-editor, .doc) ol > li{
  list-style:none;
  position:relative;
  counter-increment:pm-ol;
}
:where(.editor, .share-reader, .share-editor, .doc) ol > li::before{
  content:counters(pm-ol, ".") ".";
  position:absolute;
  right:100%;
  margin-right:.4em;
  white-space:nowrap;
  color:var(--ink-soft);
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum";
  font-family:var(--sans);
  font-size:.95em;
}
/* 用户用 Markdown 快捷输入「N、」中文编号时，不会生成 ol，仍是 <p> 段落，
   不受这条规则影响；保留原有中文编号续号逻辑（editor.js 中）。*/

/* 待办事项（行内格式） */
.todo-item{
  display:flex;
  align-items:flex-start;
  gap:10px;
  margin:.5em 0;
  padding:4px 0;
  font-family:var(--sans);
  font-size:1em;
  line-height:1.6;
}
.todo-item .todo-check{
  flex:0 0 auto;
  width:18px;
  height:18px;
  margin-top:2px;
  border:1.5px solid var(--ink-faint);
  border-radius:50%;
  background:transparent;
  cursor:pointer;
  display:inline-block;
  position:relative;
  user-select:none;
  transition:border-color .15s, background .15s;
}
.todo-item .todo-check:hover{border-color:var(--accent);}
.todo-item .todo-check.checked{
  border-color:var(--accent);
  background:var(--accent);
}
.todo-item .todo-check.checked::after{
  content:"";
  position:absolute;
  left:5px; top:1px;
  width:5px; height:10px;
  border:solid #fff;
  border-width:0 2px 2px 0;
  transform:rotate(45deg);
}
.todo-item .todo-text{
  flex:1 1 auto;
  min-width:0;
  outline:none;
  word-break:break-word;
}
.todo-item.done .todo-text{
  color:var(--ink-faint);
  text-decoration:line-through;
  text-decoration-color:rgba(150,156,152,.6);
}
.editor a{color:var(--link);text-decoration:underline;text-underline-offset:3px;}
/* 分享页/版本预览的普通内联链接：主题适配蓝 + 下划线；链接卡片已被下方 .link-card 规则覆盖为 ink 无下划线 */
.share-reader a, .share-editor a, .version-preview-render a{
  color:var(--link);
  text-decoration:underline;
  text-underline-offset:3px;
}
/* 链接卡片不是普通超链接：覆盖 .editor a 的蓝色下划线（:where 优先级为 0 会被压过） */
.editor a.link-card, .share-editor a.link-card, .share-reader a.link-card, .version-preview-render a.link-card{
  color:var(--ink);
  text-decoration:none;
}
/* 脚注上标药丸同理：覆盖 .editor a / .share-reader a 的蓝色下划线（统一走 --link 主题蓝） */
.editor a[href^="#fn-"], .share-editor a[href^="#fn-"], .share-reader a[href^="#fn-"], .version-preview-render a[href^="#fn-"],
.editor .fn-ref > a, .share-editor .fn-ref > a, .share-reader .fn-ref > a, .version-preview-render .fn-ref > a,
.editor a[data-fn-back], .share-editor a[data-fn-back], .share-reader a[data-fn-back], .version-preview-render a[data-fn-back]{
  color:var(--link);
  text-decoration:none;
  text-underline-offset:0;
}
.editor:focus-visible{outline:none;}

/* 错字检测：横线 + 淡透明度（替代默认波浪线） */
.editor::spelling-error{
  text-decoration-line:underline;
  text-decoration-style:solid;            /* 直线，非波浪 */
  text-decoration-color:rgba(200,60,60,.28);
  text-decoration-thickness:1px;
  text-underline-offset:2px;
}
.editor::grammar-error{
  text-decoration-line:underline;
  text-decoration-style:solid;
  text-decoration-color:rgba(120,120,200,.22);
  text-decoration-thickness:1px;
  text-underline-offset:2px;
}

/* 代码块 */
.editor pre{
  background:var(--code-bg);
  border:1px solid var(--code-border);
  border-radius:6px;
  padding:14px 16px;
  margin:.8em 0;
  overflow-x:auto;
  max-width:100%;  /* 代码块不撑开信纸，超宽内部滚动 */
  font-family:var(--mono);
  font-size:13.5px;
  line-height:1.6;
  color:var(--ink);
  -webkit-user-select:text;user-select:text;
}
.editor pre code{background:none;padding:0;border:none;font-family:var(--mono);color:inherit;}

/* ============ 代码块语法高亮（highlight.js）============
   只作用于只读渲染（阅读模式/分享页/版本预览）的代码块内 token。
   亮色（纸墨）为基础，雾纸/夜墨分别覆盖。 */
pre code .hljs-comment,
pre code .hljs-quote{color:#008000;font-style:italic;}
pre code .hljs-keyword,
pre code .hljs-selector-tag,
pre code .hljs-literal,
pre code .hljs-doctag{color:#af00db;}
pre code .hljs-string,
pre code .hljs-meta .hljs-string,
pre code .hljs-regexp{color:#a31515;}
pre code .hljs-number,
pre code .hljs-symbol,
pre code .hljs-bullet{color:#098658;}
pre code .hljs-title,
pre code .hljs-section,
pre code .hljs-title.function_{color:#795e26;}
pre code .hljs-attr,
pre code .hljs-attribute,
pre code .hljs-variable,
pre code .hljs-template-variable{color:#001080;}
pre code .hljs-built_in,
pre code .hljs-selector-class,
pre code .hljs-type{color:#267f99;}
pre code .hljs-name,
pre code .hljs-selector-id{color:#0000ff;}
pre code .hljs-operator,
pre code .hljs-punctuation{color:#000000;}
pre code .hljs-emphasis{font-style:italic;}
pre code .hljs-strong{font-weight:700;}
/* 括号按嵌套深度着色（VS Code bracket colorizer） */
pre code .bd-1{color:#e36209;}
pre code .bd-2{color:#cf222e;}
pre code .bd-3{color:#116329;}
pre code .bd-4{color:#0550ae;}

/* 雾纸（feishu）：柔和版 */
[data-theme="feishu"] pre code .hljs-comment,
[data-theme="feishu"] pre code .hljs-quote{color:#4e7d3a;font-style:italic;}
[data-theme="feishu"] pre code .hljs-keyword,
[data-theme="feishu"] pre code .hljs-selector-tag,
[data-theme="feishu"] pre code .hljs-literal,
[data-theme="feishu"] pre code .hljs-doctag{color:#b02a8a;}
[data-theme="feishu"] pre code .hljs-string,
[data-theme="feishu"] pre code .hljs-meta .hljs-string,
[data-theme="feishu"] pre code .hljs-regexp{color:#a03424;}
[data-theme="feishu"] pre code .hljs-number,
[data-theme="feishu"] pre code .hljs-symbol,
[data-theme="feishu"] pre code .hljs-bullet{color:#0e7a4e;}
[data-theme="feishu"] pre code .hljs-title,
[data-theme="feishu"] pre code .hljs-section,
[data-theme="feishu"] pre code .hljs-title.function_{color:#7a4db0;}
[data-theme="feishu"] pre code .hljs-attr,
[data-theme="feishu"] pre code .hljs-attribute,
[data-theme="feishu"] pre code .hljs-variable,
[data-theme="feishu"] pre code .hljs-template-variable{color:#7a3a1e;}
[data-theme="feishu"] pre code .hljs-built_in,
[data-theme="feishu"] pre code .hljs-selector-class,
[data-theme="feishu"] pre code .hljs-type{color:#0a6fb3;}
[data-theme="feishu"] pre code .hljs-name,
[data-theme="feishu"] pre code .hljs-selector-id{color:#1a56a0;}
[data-theme="feishu"] pre code .hljs-operator,
[data-theme="feishu"] pre code .hljs-punctuation{color:#4a4844;}
[data-theme="feishu"] pre code .bd-1{color:#d97706;}
[data-theme="feishu"] pre code .bd-2{color:#cf222e;}
[data-theme="feishu"] pre code .bd-3{color:#116329;}
[data-theme="feishu"] pre code .bd-4{color:#0a6fb3;}

/* 夜墨（dark）：参照 VS Code Dark+ 色板 */
[data-theme="dark"] pre code .hljs-comment,
[data-theme="dark"] pre code .hljs-quote{color:#6a9955;font-style:italic;}
[data-theme="dark"] pre code .hljs-keyword,
[data-theme="dark"] pre code .hljs-selector-tag,
[data-theme="dark"] pre code .hljs-literal,
[data-theme="dark"] pre code .hljs-doctag{color:#c586c0;}
[data-theme="dark"] pre code .hljs-string,
[data-theme="dark"] pre code .hljs-meta .hljs-string,
[data-theme="dark"] pre code .hljs-regexp{color:#ce9178;}
[data-theme="dark"] pre code .hljs-number,
[data-theme="dark"] pre code .hljs-symbol,
[data-theme="dark"] pre code .hljs-bullet{color:#b5cea8;}
[data-theme="dark"] pre code .hljs-title,
[data-theme="dark"] pre code .hljs-section,
[data-theme="dark"] pre code .hljs-title.function_{color:#dcdcaa;}
[data-theme="dark"] pre code .hljs-attr,
[data-theme="dark"] pre code .hljs-attribute,
[data-theme="dark"] pre code .hljs-variable,
[data-theme="dark"] pre code .hljs-template-variable{color:#9cdcfe;}
[data-theme="dark"] pre code .hljs-built_in,
[data-theme="dark"] pre code .hljs-selector-class,
[data-theme="dark"] pre code .hljs-type{color:#4ec9b0;}
[data-theme="dark"] pre code .hljs-name,
[data-theme="dark"] pre code .hljs-selector-id{color:#9cdcfe;}
[data-theme="dark"] pre code .hljs-operator,
[data-theme="dark"] pre code .hljs-punctuation{color:#d4d4d4;}
[data-theme="dark"] pre code{color:#ffffff;}
[data-theme="dark"] pre code .bd-1{color:#ff7b72;}
[data-theme="dark"] pre code .bd-2{color:#ffa657;}
[data-theme="dark"] pre code .bd-3{color:#7ee787;}
[data-theme="dark"] pre code .bd-4{color:#79c0ff;}
.editor code{
  background:var(--code-bg);
  border:1px solid var(--code-border);
  border-radius:3px;
  padding:1px 5px;
  font-family:var(--mono);
  font-size:.9em;
}
/* 正文中的键盘按键标记（如欢迎文档里的 # - > 快捷输入符号） */
.editor kbd{
  display:inline-block;
  padding:1px 6px;
  border:1px solid var(--code-border);
  border-bottom-width:2px;
  border-radius:4px;
  background:var(--code-bg);
  color:var(--ink);
  font-family:var(--mono);
  font-size:.85em;
  font-weight:600;
  line-height:1.4;
  white-space:nowrap;
  box-shadow:0 1px 0 rgba(0,0,0,.06);
  vertical-align:baseline;
}

/* 表格 */
.editor table{
  border-collapse:collapse;
  width:auto;
  max-width:none;
  table-layout:fixed;
  margin:.8em 0;
  font-size:.95em;
}
.editor th,.editor td{
  border:1px solid var(--line);
  padding:8px 12px;
  text-align:left;
  vertical-align:top;
  min-width:56px;
}
.editor th{background:var(--table-head);font-weight:600;}
.editor tr:nth-child(even) td{background:var(--line-soft);}
.editor th.pm-table-cell-active,
.editor td.pm-table-cell-active{
  box-shadow:inset 0 0 0 2px var(--accent);
}
.editor th.pm-table-cell-selected,
.editor td.pm-table-cell-selected{
  box-shadow:inset 0 0 0 2px var(--accent);
  background-image:linear-gradient(rgba(111,137,122,.12),rgba(111,137,122,.12));
}

/* 目录 */
.editor .toc{
  background:var(--highlight);
  border:1px solid var(--line);
  border-radius:6px;
  padding:12px 18px;
  margin:1em 0;
  font-size:.9em;
}
.editor .toc-title{font-weight:600;margin-bottom:6px;color:var(--ink-soft);}
.editor .toc ol{margin:0;padding-left:1.4em;}
.editor .toc li{margin:3px 0;font-weight:500;}
.editor .toc a{color:var(--accent);text-decoration:none;}
.editor .toc a:hover{text-decoration:underline;}

/* ============ 图片容器（span.img-container，参考简编方案） ============ */
.editor .img-container{
  display:block;
  position:relative;
  margin:12px auto;
  max-width:100%;
  border:2px solid transparent;
  border-radius:4px;
  transition:border-color .15s;
  cursor:pointer;
  line-height:0;
  overflow:hidden;
  max-width:100%;
  min-width:40px;
  min-height:40px;
  -webkit-user-select:none;user-select:none;
}
.editor .img-container:hover{border-color:var(--line);}
.editor .img-container.selected{
  border-color:var(--accent);
  outline:none;
}
.editor .img-container img{
  display:block;
  width:100%;
  height:100%;
  object-fit:contain;
  pointer-events:none;
  -webkit-user-select:none;user-select:none;
}
.editor .img-container.dragging{opacity:.78;}
.editor .img-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:10px;
  align-items:start;
  margin:14px 0;
  width:100%;
  max-width:100%;
}
.editor .img-grid[data-count="3"]{grid-template-columns:repeat(3,minmax(0,1fr));}
.editor .img-grid[data-count="1"]{display:block;width:auto;}
.editor .img-grid .img-container{
  display:block!important;
  width:100%!important;
  height:auto!important;
  margin:0!important;
  vertical-align:top;
}
.editor .img-grid .img-container img{
  width:100%;
  height:auto;
  object-fit:contain;
}
.editor .img-grid .rs-handle{display:none;}.editor .img-grid .img-container.selected .rs-handle{display:block;}

/* 图片尺寸标签（hover/选中显示） */
.editor .img-size-label{
  position:absolute;
  bottom:4px;
  right:6px;
  background:rgba(0,0,0,.55);
  color:#fff;
  font-size:10px;
  padding:1px 5px;
  border-radius:3px;
  pointer-events:none;
  opacity:0;
  transition:opacity .15s;
  font-family:var(--sans);
  line-height:1.4;
}
/* 图片分辨率标签：非高频信息，默认隐藏 */
.editor .img-size-label{display:none!important;}

/* 缩放拖拽手柄（四角） */
.editor .img-container .rs-handle{
  display:none;
  position:absolute;
  width:10px;height:10px;
  background:var(--accent);
  border:2px solid var(--bg-editor);
  border-radius:2px;
  z-index:10;
  pointer-events:auto;
  box-shadow:0 0 2px rgba(0,0,0,.3);
}
.editor .img-container.selected .rs-handle{display:block;}
.editor .rs-nw{top:2px;left:2px;cursor:nw-resize;}
.editor .rs-ne{top:2px;right:2px;cursor:ne-resize;}
.editor .rs-sw{bottom:2px;left:2px;cursor:sw-resize;}
.editor .rs-se{bottom:2px;right:2px;cursor:se-resize;}

/* 粘贴进来的裸 img 兜底（fixImageContainers 之前的瞬间） */
.editor img:not(.img-container img){
  max-width:100%;
  height:auto;
}

/* ============ 拖拽插入位置指示器（飞书式：贯穿全文的蓝色水平线） ============ */
#dropIndicator{
  position:fixed;
  left:0;
  right:0;
  height:3px;
  background:#3478f6;
  pointer-events:none;
  z-index:9100;
  border-radius:2px;
  opacity:0;
  transition:opacity .1s, top .05s;
  box-shadow:0 0 0 1px rgba(255,255,255,.75),0 0 8px rgba(52,120,246,.28);
}
#dropIndicator.visible{opacity:1;}
@keyframes drop-line-blink{
  0%,100%{opacity:1}
  50%{opacity:.55}
}

/* ============ 状态栏 ============ */
.statusbar{
  flex:0 0 auto;
  display:flex;align-items:center;gap:18px;
  padding:6px 16px;
  background:var(--bg-panel);
  border-top:1px solid var(--line);
  font-size:12px;color:var(--ink-soft);
  height:30px;
  -webkit-user-select:none;user-select:none;
}
.statusbar .stat{display:inline-flex;align-items:center;gap:4px;}
.statusbar .dot{width:3px;height:3px;border-radius:50%;background:var(--ink-faint);display:inline-block;opacity:.5;}
/* 主页（仪表盘）下状态栏无文档信息可展示，整条隐藏 */
body.dashboard-active .statusbar{display:none;}

/* ============ Toast ============ */
.toast-stack{
  position:fixed;left:50%;bottom:46px;
  transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:8px;
  z-index:9999;pointer-events:none;
}
.toast{
  background:rgba(43,42,39,.92);
  color:#f5f0e3;
  padding:8px 16px;border-radius:20px;font-size:13px;
  box-shadow:0 4px 16px rgba(0,0,0,.18);
  animation:toastIn .2s ease, toastOut .3s ease 1.7s forwards;
  max-width:80vw;
}
[data-theme="dark"] .toast{background:rgba(60,58,55,.95);color:#e8e4dc;}
@keyframes toastIn{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:translateY(0);}}
@keyframes toastOut{to{opacity:0;transform:translateY(-6px);}}

/* ============ 多端同步横幅 ============ */
.version-banner{
  position:fixed;top:16px;right:16px;
  display:none;align-items:center;gap:12px;
  padding:10px 14px;
  background:var(--bg-panel);
  border:1px solid var(--accent-soft);
  border-radius:12px;
  box-shadow:0 6px 24px rgba(32,41,46,.12), 0 1px 3px rgba(32,41,46,.06);
  z-index:9990;
  font-size:13px;
  max-width:min(360px,calc(100vw - 32px));
}
.version-banner.show{display:flex;animation:vbIn .22s ease;}
@keyframes vbIn{from{opacity:0;transform:translateY(-8px);}to{opacity:1;transform:translateY(0);}}
.version-banner .vb-text{flex:1 1 auto;color:var(--ink);}
.version-banner .vb-btn{
  appearance:none;border:none;cursor:pointer;
  padding:6px 12px;border-radius:6px;font-size:12px;font-weight:600;
  font-family:var(--sans);
  transition:background .15s,color .15s;
}
.version-banner .vb-btn:active{transform:scale(.97);}
.version-banner .vb-refresh{background:var(--accent);color:#fff;}
.version-banner .vb-refresh:hover{background:var(--accent-hover,var(--accent));filter:brightness(1.06);}
.version-banner .vb-later{background:transparent;color:var(--ink-soft);}
.version-banner .vb-later:hover{background:var(--bg-hover);color:var(--ink);}
@media (max-width:760px){
  .version-banner{top:auto;bottom:84px;left:12px;right:12px;max-width:none;}
}

/* ============ 拖入覆盖层 ============ */
.drop-overlay{
  position:fixed;inset:0;
  background:rgba(138,122,92,.12);
  border:3px dashed var(--accent);
  display:none;align-items:center;justify-content:center;
  z-index:9000;pointer-events:none;
  font-size:18px;color:var(--accent);font-family:var(--serif);
}
.drop-overlay.show{display:flex;}
.drop-overlay .drop-inner{
  background:var(--bg-editor);padding:22px 36px;border-radius:10px;box-shadow:var(--shadow);
}

.hidden-input{position:absolute;left:-9999px;top:-9999px;opacity:0;}

/* 滚动条 */
.editor-wrap::-webkit-scrollbar{width:10px;}
.editor-wrap::-webkit-scrollbar-track{background:transparent;}
.editor-wrap::-webkit-scrollbar-thumb{background:var(--line);border-radius:5px;border:2px solid var(--bg);}
.editor-wrap::-webkit-scrollbar-thumb:hover{background:var(--accent-soft);}

/* 文档标题输入（顶部，可选） */
.doc-title-bar{
  flex:0 0 auto;
  display:flex;
  align-items:center;
  gap:10px;
  padding:48px 70px 8px;
  width:100%;
  min-width:0;        /* 允许在 flex 父容器中收缩 */
  max-width:100%;     /* 绝不被超长标题撑开 */
}
/* 标题输入字段：包裹 input + 失焦省略号显示层 */
.doc-title-field{
  position:relative;
  flex:1 1 auto;
  min-width:0;
  max-width:100%;
  display:flex;
  align-items:center;
  min-height:72px;
  padding:22px 12px 8px;
  background:var(--bg-editor);
  border:1px solid transparent;
  border-bottom-color:var(--line);
  border-radius:10px 10px 4px 4px;
  transition:background .15s,border-color .15s,box-shadow .15s;
}
.doc-title-field:hover{background:var(--bg-panel);border-color:var(--line-soft);border-bottom-color:var(--accent-soft);}
.doc-title-ai-wrap{position:relative;flex:0 0 auto;}
.doc-title-ai-btn{
  appearance:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;
  background:var(--bg-editor);color:var(--accent);cursor:pointer;display:inline-flex;
  align-items:center;justify-content:center;transition:background .15s,border-color .15s,color .15s;
}
.doc-title-ai-btn svg{width:19px;height:19px;}
.doc-title-ai-btn:hover{background:var(--highlight);border-color:var(--accent-soft);color:var(--ink);}
.doc-title-ai-btn:focus-visible{outline:2px solid var(--accent-soft);outline-offset:2px;}
.doc-title-ai-btn:disabled{opacity:.45;cursor:wait;}
.doc-title-ai-btn.loading svg{animation:doc-title-ai-spin .85s linear infinite;}
@keyframes doc-title-ai-spin{to{transform:rotate(360deg);}}
.doc-title-suggestion{
  position:absolute;z-index:1200;top:calc(100% + 8px);right:0;width:320px;max-width:calc(100vw - 24px);
  padding:12px;border:1px solid var(--line);border-radius:12px;background:var(--bg-panel);
  color:var(--ink);box-shadow:var(--shadow);
}
.doc-title-suggestion-label{display:block;margin-bottom:4px;color:var(--ink-faint);font-size:11px;font-weight:650;letter-spacing:.06em;}
.doc-title-suggestion-text{display:block;line-height:1.45;font-size:16px;font-weight:650;word-break:break-word;}
.doc-title-suggestion-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:10px;}
.doc-title-suggestion-actions button{
  appearance:none;min-height:30px;padding:0 10px;border:1px solid var(--line);border-radius:7px;
  background:var(--bg-editor);color:var(--ink-soft);font-family:var(--sans);font-size:12px;cursor:pointer;
}
.doc-title-suggestion-actions button:hover{background:var(--bg-hover);color:var(--ink);}
.doc-title-suggestion-actions button.primary{border-color:var(--accent);background:var(--accent);color:#fff;}
.doc-title-field:focus-within{background:var(--bg-panel);border-color:var(--accent-soft);border-bottom-color:var(--accent);box-shadow:0 1px 0 var(--accent);}
.doc-title-label{
  position:absolute;top:7px;left:12px;
  color:var(--ink-faint);font-size:11px;font-weight:600;
  letter-spacing:.08em;line-height:1;pointer-events:none;
}
.doc-title-bar textarea{
  width:100%;
  min-width:0;
  background:transparent;
  border:none;
  outline:none;
  resize:none;
  overflow:hidden;
  font-family:var(--sans);
  font-size:34px;
  font-weight:700;
  line-height:1.25;
  color:var(--ink);
  padding:0;
  letter-spacing:0;
  user-select:text;-webkit-user-select:text;
}
.doc-title-bar textarea::placeholder{color:var(--ink-faint);font-weight:400;}

/* 侧边栏底部用户信息 */
.sidebar-foot{
  flex:0 0 auto;
  display:flex;align-items:center;gap:10px;
  padding:12px 14px;
  border-top:1px solid var(--line);
  background:var(--bg-sidebar);
  font-size:13.5px;color:var(--ink-soft);
}
.sidebar-foot .user-avatar{
  width:36px;height:36px;border-radius:50%;
  background:var(--accent);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:600;flex:0 0 auto;
  overflow:hidden;cursor:pointer;
  transition:box-shadow .15s,transform .1s;
  box-shadow:0 0 0 1px var(--line-soft);
}
.sidebar-foot .user-avatar:hover{box-shadow:0 0 0 2px var(--accent-soft);}
.sidebar-foot .user-avatar img{
  width:100%;height:100%;object-fit:cover;display:block;
}
.sidebar-foot .user-name{
  flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  font-size:13.5px;font-weight:500;color:var(--ink);
}
.sidebar-foot .icon-btn{width:30px;height:30px;font-size:14px;}

/* ============ 登录页 ============ */
.login-body{
  display:flex;align-items:center;justify-content:center;
  min-height:100vh;
  background:var(--bg);
  padding:24px;
}
.login-card{
  width:100%;max-width:390px;
  background:var(--bg-panel);
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:0 24px 70px rgba(32,41,46,.09);
  padding:40px 38px 34px;
}
.login-logo-img{display:block;width:132px;height:auto;max-width:100%;margin:0 auto;}
.login-brand{display:flex;align-items:center;justify-content:center;min-height:64px;margin-bottom:28px;text-align:center;}
.login-brand .brand-logo-dark{display:none;}
[data-theme="dark"] .login-brand .brand-logo-light{display:none;}
[data-theme="dark"] .login-brand .brand-logo-dark{display:block;}
.login-tabs{
  display:flex;
  gap:4px;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:10px;
  padding:4px;
  margin-bottom:24px;
}
.login-tab{
  flex:1;
  height:36px;
  border:none;
  background:transparent;
  color:var(--ink-soft);
  border-radius:6px;
  cursor:pointer;
  font-family:var(--sans);
  font-size:13px;
  font-weight:500;
  transition:background .15s,color .15s;
}
.login-tab.active{background:var(--primary);color:var(--primary-ink);}
.login-pane{display:none;flex-direction:column;gap:14px;}
.login-pane.active{display:flex;}
.login-field{display:flex;flex-direction:column;gap:4px;}
.login-field-row{display:flex;align-items:center;gap:10px;}
.login-label{
  flex:0 0 56px;
  font-family:var(--sans);
  font-size:13px;
  font-weight:500;
  color:var(--ink-soft);
  white-space:nowrap;
  user-select:none;
}
.login-field-row input{flex:1;min-width:0;}
.login-field input{
  height:44px;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:10px;
  padding:0 12px;
  color:var(--ink);
  font-family:var(--sans);font-size:14px;
  outline:none;
  transition:border-color .15s;
}
.login-field input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--highlight);}
.login-field input::placeholder{color:var(--ink-faint);opacity:.55;}
.field-error{
  color:#c0392b;
  font-size:12px;
  padding:0 2px;
  min-height:0;
}
[data-theme="dark"] .field-error{color:#ff7a6b;}
.pwd-wrap{position:relative;display:flex;align-items:center;flex:1;min-width:0;}
.pwd-wrap input{flex:1;padding-right:38px;}
.pwd-toggle{
  position:absolute;right:8px;top:50%;transform:translateY(-50%);
  background:none;border:none;cursor:pointer;
  color:var(--ink-faint);padding:4px;display:flex;align-items:center;
  border-radius:4px;transition:color .15s,opacity .15s;
  opacity:0;pointer-events:none;
}
.pwd-wrap input:not(:placeholder-shown) ~ .pwd-toggle{opacity:1;pointer-events:auto;}
.pwd-toggle:hover{color:var(--ink-soft);}
.pwd-toggle svg[hidden]{display:none;}
.pwd-toggle svg:not([hidden]){display:block;}
.login-error{
  background:rgba(192,57,43,.1);
  border:1px solid rgba(192,57,43,.3);
  color:#c0392b;
  font-size:12px;
  padding:8px 12px;
  border-radius:6px;
  margin-top:2px;
}
[data-theme="dark"] .login-error{color:#ff7a6b;}
.login-submit{
  height:46px;
  background:var(--primary);
  color:var(--primary-ink);
  border:none;
  border-radius:10px;
  cursor:pointer;
  font-family:var(--sans);
  font-size:14px;font-weight:500;
  margin-top:6px;
  transition:background .15s,transform .1s;
}
.login-submit:hover{background:var(--primary-hover);}
.login-submit:active{transform:scale(.99);}
.login-submit:disabled{opacity:.6;cursor:not-allowed;}

/* ============ 雾纸主题（保留清爽结构，不使用通用科技蓝） ============ */
[data-theme="feishu"]{
  --bg:#f4f6f4;
  --bg-panel:#ffffff;
  --bg-sidebar:#f8f9f7;
  --bg-editor:#ffffff;
  --bg-hover:#edf0ed;
  --bg-active:#e1e8e3;
  --ink:#20292e;
  --ink-soft:#626b6a;
  --ink-faint:#929a96;
  --line:#dde2de;
  --line-soft:#eaedea;
  --accent:#668172;
  --accent-soft:#c6d3cb;
  --highlight:#e8eeea;
  --primary:#20292e;
  --primary-hover:#151c20;
  --primary-ink:#fff;
  --link:#2563eb; /* 内联链接主题适配蓝 */
  --shadow:0 1px 3px rgba(0,0,0,.06), 0 4px 12px rgba(0,0,0,.04);
  --code-bg:#f1f3f1;
  --code-border:#dde2de;
  --table-head:#f1f3f1;
}
[data-theme="feishu"] .sidebar{border-right:1px solid var(--line);}
[data-theme="feishu"] .doc-title-bar{border-bottom:none;}
[data-theme="feishu"] .toolbar{border-bottom:1px solid var(--line);}
[data-theme="feishu"] .login-card{box-shadow:0 2px 16px rgba(0,0,0,.06);}

/* ============ 不可选中区域 ============ */
.sidebar,.toolbar,.doc-title-bar,.statusbar,.login-tabs,.login-brand,
.icon-btn,.tb-btn,.fm-btn,.dropdown-item,.login-tab,.login-submit,
.img-size-label,.doc-item,.folder-item,.seg-btn,.new-btn,.new-folder-btn,
.reading-exit,.modal-close,.invite-tag,.invite-del,.invite-code,.pwd-toggle{
  -webkit-user-select:none;user-select:none;
}

/* ============ 邀请码管理改进 ============ */
.invite-code-cell{display:flex;align-items:center;gap:6px;}
.invite-code-cell .invite-code{cursor:pointer;}
.invite-code-cell.used .invite-code{color:var(--ink-faint);cursor:default;opacity:.5;}
.invite-copy-btn{
  background:none;border:none;cursor:pointer;
  color:var(--ink-faint);padding:4px;display:flex;align-items:center;
  border-radius:4px;transition:color .15s,background .15s;
}
.invite-copy-btn:hover{color:var(--accent);background:var(--bg-hover);}
.invite-copy-btn.disabled{opacity:.3;cursor:default;pointer-events:none;}
.login-foot{
  margin-top:18px;
  font-size:11px;color:var(--ink-faint);
  text-align:center;
}

/* ============ 导出下拉菜单 ============ */
.tb-dropdown{position:relative;display:inline-flex;flex:0 0 auto;}
.tb-dropdown .caret{width:12px;height:12px;opacity:.6;margin-left:2px;flex:0 0 auto;}
.dropdown-menu{
  position:absolute;top:100%;right:0;margin-top:4px;
  background:var(--bg-editor);
  border:1px solid var(--line);
  border-radius:8px;
  box-shadow:0 4px 20px rgba(0,0,0,.12);
  padding:4px;min-width:130px;z-index:300;
  display:flex;flex-direction:column;gap:1px;
}
.dropdown-menu[hidden]{display:none;}
.dropdown-item{
  appearance:none;background:transparent;border:none;
  padding:8px 14px;text-align:left;border-radius:6px;
  cursor:pointer;color:var(--ink);
  font-family:var(--sans);font-size:13px;
  transition:background .1s;white-space:nowrap;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  min-width:170px;
}
.dropdown-item:hover{background:var(--highlight);}
[data-theme="dark"] .dropdown-item:hover{background:var(--bg-active);}
.dropdown-tag{
  font-size:11px;color:var(--ink-faint);
  font-family:var(--mono);letter-spacing:.3px;
}

/* ============ 工具栏溢出"更多"下拉 ============ */
#overflowDropdown[hidden]{display:none!important;}
#overflowToggle{padding:0 8px;}
#overflowToggle svg{width:17px;height:17px;}
#overflowMenu{
  min-width:160px;
  max-height:calc(100vh - 80px);
  overflow-y:auto;
}
/* 菜单内的 .tb-btn：从图标方块改成"图标+文字"行项，与 .dropdown-item 视觉一致 */
#overflowMenu .tb-btn{
  min-width:0;
  width:100%;
  height:auto;
  padding:8px 12px;
  justify-content:flex-start;
  gap:10px;
  border:1px solid transparent;
  border-radius:6px;
  color:var(--ink);
  font-family:var(--sans);
  font-size:13px;
  transition:background .1s;
}
#overflowMenu .tb-btn svg{width:16px;height:16px;flex:0 0 auto;}
#overflowMenu .tb-btn::after{content:attr(data-label);white-space:nowrap;font-size:13px;}
#overflowMenu .tb-btn:hover{background:var(--highlight);color:var(--ink);}
#overflowMenu .tb-btn.active{background:var(--bg-active);color:var(--ink);border-color:var(--line);}
[data-theme="dark"] #overflowMenu .tb-btn:hover{background:var(--bg-active);}
[data-theme="feishu"] #overflowMenu .tb-btn:hover{background:var(--bg-active);}

/* 移动端顶部菜单按钮（侧边栏抽屉切换） */
.mobile-menu-btn{
  display:none;
  width:34px;height:34px;
  background:transparent;border:none;
  color:var(--ink-soft);
  font-size:18px;cursor:pointer;
  border-radius:6px;
  align-items:center;justify-content:center;
}
.mobile-menu-btn:hover{background:var(--highlight);}

/* ============ 选中浮动菜单（飞书式） ============ */
.float-menu{
  position:fixed;
  z-index:9500;
  background:var(--bg-panel);
  border:1px solid var(--line);
  border-radius:8px;
  box-shadow:0 4px 16px rgba(0,0,0,.15);
  padding:4px;
  display:flex;align-items:center;gap:1px;
  user-select:none;-webkit-user-select:none;
  max-width:92vw;
  flex-wrap:nowrap;
  animation:fmIn .12s ease;
}
.float-menu[hidden]{display:none;}
/* 精简模式：只显示标题层级按钮 */
.float-menu.compact .fm-btn:not([data-block]){display:none;}
.float-menu.compact .fm-divider{display:none;}
@keyframes fmIn{from{opacity:0;transform:translateY(4px);}to{opacity:1;transform:translateY(0);}}
.fm-btn{
  appearance:none;background:transparent;border:none;
  color:var(--ink-soft);
  height:28px;min-width:28px;padding:0 6px;
  border-radius:5px;cursor:pointer;
  font-family:var(--sans);font-size:12px;
  display:inline-flex;align-items:center;justify-content:center;gap:2px;
  transition:background .1s,color .1s;
  white-space:nowrap;
}
.fm-btn:hover{background:var(--bg-hover);color:var(--ink);}
.fm-btn:active{background:var(--bg-active);}
.fm-btn.active{background:var(--accent);color:#fff;}
.fm-btn.danger{color:#c44;}
.fm-btn.danger:hover{background:rgba(192,57,43,.12);}
.fm-divider{width:1px;height:18px;background:var(--line);margin:0 3px;flex:0 0 auto;}
.float-menu-img .fm-btn{padding:0 8px;}

/* 浮动菜单内嵌快速 AI 输入框 */
.fm-ai-wrap{
  position:relative;
  display:inline-flex;
  align-items:center;
  flex:0 0 auto;
}
.fm-ai-quick{
  height:28px;
  width:140px;
  padding:0 28px 0 10px;
  border:1px solid var(--line);
  border-radius:6px;
  background:var(--bg-editor);
  color:var(--ink);
  font-family:var(--sans);
  font-size:12.5px;
  outline:none;
  flex:0 0 auto;
  transition:border-color .12s, box-shadow .12s, width .12s;
}
.fm-ai-quick::placeholder{color:var(--ink-faint);font-size:12px;}
.fm-ai-quick:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(59,130,246,.14);
  width:170px;
}
.fm-ai-quick:disabled{opacity:.6;cursor:wait;}
.float-menu.compact .fm-ai-quick{display:none;}
/* 提交/停止按钮（位于 input 内右侧） */
.fm-ai-submit{
  position:absolute;
  right:4px;
  top:50%;
  transform:translateY(-50%);
  width:22px;
  height:22px;
  padding:0;
  border:none;
  background:transparent;
  color:var(--ink-faint);
  cursor:pointer;
  border-radius:4px;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:background .12s,color .12s;
}
.fm-ai-submit:hover{background:var(--bg-hover);color:var(--accent);}
.fm-ai-submit:active{background:var(--bg-active);}
.fm-ai-submit .fm-ai-submit-icon{
  width:14px;
  height:14px;
}
.fm-ai-submit.loading{color:#c44;}
.fm-ai-submit.loading:hover{background:rgba(192,57,43,.12);color:#c44;}
.float-menu.compact .fm-ai-submit{display:none;}
/* 输入溢出时下方全文预览 */
.fm-ai-preview{
  position:absolute;
  top:calc(100% + 6px);
  left:0;
  right:0;
  max-height:120px;
  overflow-y:auto;
  padding:8px 10px;
  background:var(--bg-editor);
  border:1px solid var(--line);
  border-radius:6px;
  box-shadow:var(--shadow);
  color:var(--ink);
  font-family:var(--sans);
  font-size:12.5px;
  line-height:1.5;
  white-space:pre-wrap;
  word-break:break-all;
  z-index:50;
}
.fm-ai-preview::-webkit-scrollbar{width:4px;}
.fm-ai-preview::-webkit-scrollbar-thumb{background:var(--line);border-radius:2px;}
.float-menu.compact .fm-ai-preview{display:none;}
/* 格式刷模式：编辑器光标变成十字，提示用户选中目标文字应用格式 */
body.paint-format-mode .editor{cursor:crosshair;}
body.paint-format-mode::before{
  content:'格式刷已激活 选中文字应用 Esc 取消';
  position:fixed;
  top:8px;
  left:50%;
  transform:translateX(-50%);
  z-index:9600;
  padding:6px 14px;
  background:var(--accent);
  color:var(--primary-ink);
  font-family:var(--sans);
  font-size:12px;
  font-weight:500;
  border-radius:16px;
  box-shadow:0 4px 16px rgba(0,0,0,.18);
  pointer-events:none;
}
/* 格式刷按钮激活态 */
.fm-btn.active{background:var(--accent-soft);color:var(--accent);}
/* AI 选区视觉保持高亮（CSS Custom Highlight API） */
::highlight(ai-selection){
  background-color:rgba(59,130,246,.28);
  color:inherit;
}
/* AI 改写后呼吸高亮 */
@keyframes aiFlash{
  0%{background:rgba(59,130,246,.28);}
  100%{background:transparent;}
}
.editor mark.ai-flash{
  background:transparent;
  color:inherit;
  padding:0;
  border-radius:2px;
  animation:aiFlash 1.6s ease-out;
}
.share-reader mark.ai-flash,
.share-editor mark.ai-flash{
  background:transparent;
  color:inherit;
  animation:aiFlash 1.6s ease-out;
}

/* 悬浮撤销气泡（AI 改写后） */
.ai-undo-bubble{
  position:fixed;
  z-index:9700;
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:32px;
  padding:0 4px 0 12px;
  background:var(--ink);
  color:#fff;
  border-radius:16px;
  font-family:var(--sans);
  font-size:12.5px;
  box-shadow:0 4px 18px rgba(0,0,0,.22);
  animation:fmIn .12s ease;
  pointer-events:auto;
}
.ai-undo-bubble .ai-undo-text{opacity:.92;}
.ai-undo-bubble .ai-undo-btn{
  height:24px;
  padding:0 12px;
  border:none;
  border-radius:12px;
  background:rgba(255,255,255,.18);
  color:#fff;
  font-family:var(--sans);
  font-size:12px;
  font-weight:500;
  cursor:pointer;
  transition:background .12s;
}
.ai-undo-bubble .ai-undo-btn:hover{background:rgba(255,255,255,.32);}

/* ============ 右键上下文菜单 ============ */
.ctx-menu{
  position:fixed;
  z-index:9800;
  background:var(--bg-editor);
  border:1px solid var(--line);
  border-radius:8px;
  box-shadow:0 6px 24px rgba(40,35,25,.18);
  padding:5px;
  min-width:180px;
  user-select:none;-webkit-user-select:none;
  animation:fmIn .1s ease;
}
.ctx-menu[hidden]{display:none;}

.ctx-grid{
  display:flex;flex-wrap:wrap;gap:1px;
  padding:2px;
}
.ctx-grid .ctx-btn{
  flex:1 1 auto;
  justify-content:center;
  min-width:42px;
}
.ctx-sep{height:1px;background:var(--line-soft);margin:4px 2px;}
.ctx-btn{
  appearance:none;background:transparent;border:none;
  color:var(--ink-soft);
  height:30px;width:100%;
  padding:0 10px;
  border-radius:5px;cursor:pointer;
  font-family:var(--sans);font-size:12.5px;
  display:flex;align-items:center;gap:8px;
  transition:background .1s,color .1s;
  white-space:nowrap;text-align:left;
}
.ctx-btn:hover{background:var(--bg-hover);color:var(--ink);}
.ctx-btn:active{background:var(--bg-active);}
.ctx-btn.active{background:var(--accent);color:#fff;}
.ctx-btn.danger{color:#c44;}
.ctx-btn.danger:hover{background:rgba(192,57,43,.12);}
.ctx-btn.danger .ctx-icon{color:#c44;}
.ctx-btn.danger:hover .ctx-icon{color:#c44;}
.ctx-btn .ctx-icon{width:16px;text-align:center;flex:0 0 16px;color:var(--ink-faint);}
.ctx-btn:hover .ctx-icon{color:inherit;}
.ctx-btn.active .ctx-icon{color:#fff;}

/* ============ 链接卡片 ============ */
:where(.editor, .share-editor, .share-reader, .version-preview-render) .link-card{
  position:relative;
  display:flex;
  width:100%;
  max-width:480px;
  margin:.8em auto 20px auto; /* 居中 */
  padding:12px 14px;
  background:var(--bg-editor);
  border:1px solid var(--line);
  border-radius:10px;
  text-decoration:none;
  color:var(--ink);
  transition:border-color .15s,box-shadow .15s;
  cursor:pointer;
  box-sizing:border-box;
}
:where(.editor, .share-editor, .share-reader, .version-preview-render) .link-card:hover{border-color:rgba(127,127,127,.32);box-shadow:0 4px 14px rgba(60,50,30,.10);}
:where(.editor, .share-editor, .share-reader, .version-preview-render) .link-card.lc-focused{border-color:rgba(127,127,127,.5);box-shadow:0 0 0 2px var(--highlight);}
:where(.editor, .share-editor, .share-reader, .version-preview-render) .link-card .lc-main{
  order:1;flex:1 1 auto;min-width:0;
  display:flex;flex-direction:column;gap:4px;
  padding-right:74px; /* 给右下角斜插封面图让位 */
}
:where(.editor, .share-editor, .share-reader, .version-preview-render) .link-card.no-thumb .lc-main{padding-right:0;}
:where(.editor, .share-editor, .share-reader, .version-preview-render) .link-card .lc-title{
  font-size:13.5px;font-weight:600;color:var(--ink);
  line-height:1.4;text-decoration:none;
  overflow:hidden;text-overflow:ellipsis;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
}
:where(.editor, .share-editor, .share-reader, .version-preview-render) .link-card .lc-desc{
  font-size:12.5px;color:var(--ink-soft);line-height:1.5;text-decoration:none;
  overflow:hidden;text-overflow:ellipsis;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
}
:where(.editor, .share-editor, .share-reader, .version-preview-render) .link-card .lc-domain{
  font-size:11.5px;color:var(--ink-faint);margin-top:2px;text-decoration:none;
}
/* 右下角斜插封面图：圆角矩形 + 旋转 -6° + 投影，像贴纸斜插在卡片角落 */
:where(.editor, .share-editor, .share-reader, .version-preview-render) .link-card .lc-thumb{
  position:absolute;
  right:-8px;bottom:-8px;
  width:64px;height:64px;
  border-radius:12px;
  overflow:hidden;
  background:var(--code-bg);
  border:3px solid var(--bg-editor);
  box-shadow:0 5px 14px rgba(0,0,0,.14);
  transform:rotate(-6deg);
  transition:transform .2s ease,box-shadow .2s ease;
  z-index:1;
  display:flex;align-items:center;justify-content:center;
}
:where(.editor, .share-editor, .share-reader, .version-preview-render) .link-card:hover .lc-thumb{
  transform:rotate(-2deg) scale(1.03);
  box-shadow:0 8px 20px rgba(0,0,0,.20);
}
:where(.editor, .share-editor, .share-reader, .version-preview-render) .link-card .lc-thumb img{width:100%;height:100%;object-fit:cover;display:block;}
:where(.editor, .share-editor, .share-reader, .version-preview-render) .link-card .lc-thumb .rs-handle,
:where(.editor, .share-editor, .share-reader, .version-preview-render) .link-card .lc-thumb .img-size-label{display:none!important;}
/* 无封面图时：右上角显示打开按钮 */
:where(.editor, .share-editor, .share-reader, .version-preview-render) .link-card .lc-open{
  position:absolute;top:10px;right:10px;
  width:30px;height:30px;
  border:1px solid var(--line);border-radius:7px;
  color:var(--ink-soft);
  display:flex;align-items:center;justify-content:center;
  background:var(--bg-panel);cursor:pointer;text-decoration:none;
}
:where(.editor, .share-editor, .share-reader, .version-preview-render) .link-card .lc-open:hover{color:var(--ink);border-color:var(--accent-soft);background:var(--highlight);}
:where(.editor, .share-editor, .share-reader, .version-preview-render) .link-card .lc-open svg{width:16px;height:16px;display:block;}
:where(.editor, .share-editor, .share-reader, .version-preview-render) .link-card:not(.no-thumb) .lc-open{display:none;}

/* 转回链接按钮：仅编辑器内 hover 显示，左上角小标签（分享/预览不显示） */
:where(.share-editor, .share-reader, .version-preview-render) .link-card .lc-revert{display:none;}
.editor .link-card .lc-revert{
  position:absolute;
  top:5px;left:5px;
  display:inline-flex;
  align-items:center;
  padding:2px 7px;
  font-family:var(--sans);
  font-size:11px;
  color:var(--ink-soft);
  background:var(--bg-panel);
  border:1px solid var(--line);
  border-radius:5px;
  opacity:0;
  transition:opacity .15s;
  cursor:pointer;
  z-index:3;
  white-space:nowrap;
}
.editor .link-card:hover .lc-revert{opacity:1;}
.editor .link-card .lc-revert:hover{color:var(--ink);border-color:var(--accent-soft);background:var(--highlight);}

:where(.editor, .share-editor, .share-reader, .version-preview-render) .link-card.no-thumb .lc-thumb{display:none;}

/* 响应式：窄屏收起侧边栏 */
@media (max-width:760px){
  /* ============ 主页/编辑器双层架构 ============
     .app 默认显示主页（sidebar 全屏），编辑器隐藏
     body.mobile-editor-active 切换到编辑器视图
  */
  .app{
    display:block;
    height:100vh;
    height:100dvh;
  }
  .sidebar{
    position:static;
    transform:none;
    width:100%;
    min-width:0;
    max-width:none;
    height:100%;
    flex:none;
    display:flex;
    flex-direction:column;
    background:var(--bg);
    border-right:none;
    padding-bottom:calc(64px + env(safe-area-inset-bottom));
  }
  .sidebar.open{transform:none;} /* 不再做抽屉 */
  .main{
    display:none;
    height:100vh;
    height:100dvh;
  }
  body.mobile-editor-active .sidebar{display:none;}
  body.mobile-editor-active .main{display:flex;}
  body.mobile-editor-active{overflow:hidden;}

  /* 主页头部：放大触摸区 */
  .sidebar-head{padding:12px 14px 10px;}
  .brand-lockup{width:76px;height:38px;}
  .icon-btn{width:44px;height:44px;border-radius:12px;font-size:18px;}

  /* 主页搜索框 */
  .search-box{padding:0 14px 10px;}
  .search-box input{height:44px;border-radius:12px;font-size:14px;padding:0 44px 0 40px;}
  .search-box .search-icon{left:24px;top:14px;width:18px;height:18px;}
  .search-box .search-icon svg{width:18px;height:18px;}

  /* 主页新建按钮：放大、R角 12px */
  .new-row{padding:4px 14px 10px;gap:8px;}
  .new-btn,.new-folder-btn{
    height:44px;border-radius:12px;font-size:14px;font-weight:600;
  }
  .new-btn svg,.new-folder-btn svg{width:16px;height:16px;}

  /* 排序图标 + 下拉菜单：移动端加大触达区 */
  .sort-toggle{width:44px;height:44px;right:20px;top:0;}
  .sort-toggle svg{width:18px;height:18px;}
  .sort-popover{top:50px;right:14px;left:14px;min-width:0;border-radius:12px;padding:6px;}
  .sort-popover button[role="option"],.sort-order-toggle{padding:12px;font-size:14px;}

  /* 文档列表：R角 12px、加大触摸区 */
  .doc-list{padding:6px 10px 12px;}
  .doc-item{padding:14px 12px;border-radius:12px;margin-bottom:6px;}
  .doc-item .doc-title{font-size:14px;font-weight:500;padding-right:76px;}
  .doc-item .doc-meta{font-size:11.5px;margin-top:4px;}
  .doc-item .doc-del,.doc-item .doc-menu{
    width:32px;height:32px;border-radius:12px;font-size:16px;
    top:10px;
  }
  .doc-item .doc-menu{right:42px;}
  .doc-item .doc-del{right:8px;}
  .doc-item:hover .doc-del,.doc-item:hover .doc-menu{opacity:1;pointer-events:auto;}
  .doc-item .doc-star{width:24px;height:24px;}
  .doc-item .doc-star.active{opacity:1;}

  /* 文件夹：R角 12px */
  .folder-head{padding:10px 10px;border-radius:12px;}
  .folder-name{font-size:15px;font-weight:650;}
  .folder-count{font-size:11px;line-height:18px;}

  /* 主页底部用户区隐藏（由底部导航替代） */
  .sidebar-foot{display:none;}
  .sidebar-extra{display:none;}

  /* 主页底部导航 */
  .mobile-bottom-nav{
    position:fixed;left:0;right:0;bottom:0;
    z-index:200;
    display:flex;
    align-items:stretch;
    justify-content:space-around;
    height:calc(64px + env(safe-area-inset-bottom));
    padding-bottom:env(safe-area-inset-bottom);
    background:var(--bg-panel);
    border-top:1px solid var(--line-soft);
    backdrop-filter:blur(8px);
    -webkit-backdrop-filter:blur(8px);
  }
  body.mobile-editor-active .mobile-bottom-nav{display:none;}
  .mbn-item{
    flex:1 1 0;
    appearance:none;
    border:none;
    background:transparent;
    color:var(--ink-faint);
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:3px;
    padding:8px 4px 4px;
    cursor:pointer;
    font-family:var(--sans);
    font-size:11px;
    font-weight:500;
    min-height:44px;
    transition:color .15s;
  }
  .mbn-item svg{width:22px;height:22px;}
  .mbn-item:active{color:var(--accent);}
  .mbn-item.active{color:var(--accent);}

  /* ============ 编辑器视图 ============ */
  /* 编辑器顶栏：返回 / 标题 / 分享 */
  .doc-title-bar{
    padding:12px 12px 8px;
    gap:8px;
    background:var(--bg-panel);
    border-bottom:1px solid var(--line-soft);
    align-items:center;
  }
  .doc-title-field{
    flex:1 1 auto;min-width:0;min-height:52px;padding:10px 12px;
    border:1px solid var(--line);border-radius:8px;background:var(--bg-editor);
  }
  .doc-title-ai-btn{width:44px;height:44px;border-radius:12px;}
  .doc-title-suggestion{width:min(320px,calc(100vw - 24px));}
  .doc-title-bar textarea{font-size:20px;font-weight:600;}
  .doc-title-label{display:none;}
  .mobile-menu-btn{
    display:inline-flex;
    width:44px;height:44px;
    border-radius:12px;
    flex:0 0 auto;
    align-items:center;justify-content:center;
  }
  .mobile-share-btn{
    appearance:none;
    border:none;
    background:var(--accent);
    color:#fff;
    width:44px;
    height:44px;
    min-width:44px;
    padding:0;
    border-radius:10px;
    cursor:pointer;
    flex:0 0 auto;
    display:none;
    align-items:center;
    justify-content:center;
  }
  .mobile-share-btn:active{opacity:.88;}
  .mobile-share-btn svg{
    width:20px;
    height:20px;
    display:block;
  }
  body.mobile-editor-active .mobile-share-btn{display:inline-flex;}

  /* 编辑器迷你工具栏 */
  .mobile-toolbar{
    display:flex;
    align-items:center;
    gap:2px;
    padding:6px 8px;
    background:var(--bg-panel);
    border-bottom:1px solid var(--line-soft);
    overflow-x:auto;
    -webkit-overflow-scrolling:touch;
    flex:0 0 auto;
  }
  .mobile-toolbar::-webkit-scrollbar{height:0;}
  .mt-btn{
    appearance:none;
    background:transparent;
    border:none;
    color:var(--ink-soft);
    min-width:44px;
    min-height:44px;
    padding:0 8px;
    border-radius:12px;
    cursor:pointer;
    font-family:var(--sans);
    font-size:15px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    flex:0 0 auto;
    transition:background .12s,color .12s;
  }
  .mt-btn:active{background:var(--bg-active);color:var(--ink);}
  .mt-btn svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
  .mt-btn b,.mt-btn i,.mt-btn u{font-size:15px;}
  .mt-btn.active{background:var(--accent);color:#fff;}
  .mt-divider{width:1px;height:22px;background:var(--line);margin:0 4px;flex:0 0 auto;}
  .mt-more{margin-left:auto;}

  /* 隐藏桌面工具栏和状态栏 */
  .toolbar{display:none;}
  .statusbar{display:none;}

  .editor-wrap{padding:0;border-radius:0;overflow:hidden;}
  .document-shell{
    border-radius:0;
    min-height:0;
    background:var(--bg-editor);
    flex:1 1 auto;
    display:flex;
    flex-direction:column;
  }
  .editor{
    padding:18px 16px 80px;
    margin:0;
    font-size:16px;
    line-height:1.75;
    flex:1 1 auto;
    min-height:0;
    overflow-y:auto;
    overflow-x:clip;
    -webkit-overflow-scrolling:touch;
  }
  .doc-title-bar{padding:calc(8px + env(safe-area-inset-top)) 12px 8px;}

  /* 多端同步横幅调整位置（避开底部导航） */
  .version-banner{top:auto;bottom:84px;left:12px;right:12px;max-width:none;}

  /* 模态框改为底部抽屉 */
  .modal-overlay{
    align-items:flex-end;
    background:rgba(20,20,20,.42);
    backdrop-filter:blur(3px);
    -webkit-backdrop-filter:blur(3px);
    padding:0;
  }
  .modal{
    width:100%;
    max-width:100%;
    max-height:88vh;
    border-radius:16px 16px 0 0;
    box-shadow:0 -4px 28px rgba(0,0,0,.22);
    animation:sheetUp .22s cubic-bezier(.16,1,.3,1);
    padding-bottom:env(safe-area-inset-bottom);
  }
  @keyframes sheetUp{from{opacity:0;transform:translateY(24px);}to{opacity:1;transform:translateY(0);}}
  .modal-head{padding:14px 16px 12px;border-bottom:1px solid var(--line-soft);}
  .modal-title{font-size:15px;}
  .modal-close{width:44px;height:44px;border-radius:12px;font-size:22px;}
  .modal-body{padding:16px;}

  /* 设置面板 tab：移动端改为横向滚动，避免 5 个 tab 挤压拆行 */
  .settings-tabs{
    overflow-x:auto;-webkit-overflow-scrolling:touch;
    padding:0 8px;gap:0;
    scrollbar-width:none;
  }
  .settings-tabs::-webkit-scrollbar{height:0;display:none;}
  .settings-tab{
    flex-shrink:0;white-space:nowrap;
    padding:10px 12px;font-size:13px;
  }
  /* AI 设置面板：移动端纵向堆叠，避免 toggle 被挤压 */
  .auto-title-settings{flex-direction:column;align-items:flex-start;gap:10px;}

  /* 导入面板：移动端按钮全宽、加大触摸区 */
  .import-panel{padding:14px 4px;}
  .import-actions{flex-direction:column;}
  .import-pick-btn,.import-abort-btn{width:100%;justify-content:center;height:44px;}
  .import-preview-actions{flex-direction:column;}
  .import-confirm-btn,.import-repick-btn{width:100%;justify-content:center;height:44px;}

  /* 飞书式浮动菜单：移动端精简为底部居中胶囊，宽度贴合内容 */
  .float-menu{
    position:fixed !important;
    left:50% !important;right:auto !important;
    bottom:calc(8px + env(safe-area-inset-bottom)) !important;
    top:auto !important;
    transform:translateX(-50%) !important;
    width:max-content !important;
    max-width:calc(100vw - 16px) !important;
    justify-content:center !important;
    padding:6px !important;
    border-radius:14px !important;
    overflow-x:auto;
    overflow-y:hidden;
    scrollbar-width:none;
    -webkit-overflow-scrolling:touch;
    gap:2px;
  }
  .float-menu::-webkit-scrollbar{height:0;}
  .float-menu[hidden]{display:none;}
  .fm-btn{min-width:44px;min-height:44px;border-radius:12px;font-size:16px;padding:0 8px;flex:0 0 auto;}
  .fm-btn > svg{width:22px;height:22px;}
  /* 移动端隐藏重组件：AI 输入框/提交/预览/格式刷/清除格式/段落类型触发器 */
  .float-menu .fm-ai-wrap,
  .float-menu .fm-ai-preview,
  .float-menu .fm-ai-submit,
  .float-menu .fm-type-trigger,
  .float-menu #paintFormatBtn,
  .float-menu .fm-btn[data-cmd="removeFormat"]{display:none !important;}
  .fm-ai-quick{display:none !important;}
  .float-menu.compact{display:none;}

  .login-card{padding:28px 22px 22px;border-radius:16px;}
}

/* ============ 移动端底部抽屉（折叠工具） ============ */
.sheet-overlay{
  position:fixed;inset:0;
  background:rgba(20,20,20,.42);
  backdrop-filter:blur(3px);
  -webkit-backdrop-filter:blur(3px);
  z-index:1500;
  opacity:0;
  transition:opacity .2s;
}
.sheet-overlay.show{opacity:1;}
.sheet-overlay[hidden]{display:none;}
.mobile-sheet{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:1501;
  background:var(--bg-panel);
  border-radius:16px 16px 0 0;
  padding:8px 0 calc(20px + env(safe-area-inset-bottom));
  box-shadow:0 -6px 32px rgba(0,0,0,.18);
  transform:translateY(100%);
  transition:transform .25s cubic-bezier(.16,1,.3,1);
  max-height:88vh;
  overflow-y:auto;
  -webkit-overflow-scrolling:touch;
}
.mobile-sheet[hidden]{display:none;}
.mobile-sheet.show{transform:translateY(0);}
.ms-handle{
  width:36px;height:4px;
  background:var(--line);
  border-radius:2px;
  margin:6px auto 8px;
}
.ms-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:4px 20px 12px;
  border-bottom:1px solid var(--line-soft);
  margin-bottom:12px;
}
.ms-title{
  font-family:var(--sans);
  font-size:15px;
  font-weight:600;
  color:var(--ink);
}
.ms-close{
  width:44px;height:44px;
  border:none;
  background:transparent;
  color:var(--ink-faint);
  border-radius:12px;
  cursor:pointer;
  display:flex;align-items:center;justify-content:center;
}
.ms-close svg{width:20px;height:20px;}
.ms-close:active{background:var(--bg-hover);color:var(--ink);}
.ms-body{padding:0 16px;}
.ms-section{
  margin-bottom:14px;
}
.ms-section-title{
  font-size:11.5px;
  font-weight:600;
  color:var(--ink-faint);
  letter-spacing:.05em;
  margin:0 0 8px 4px;
}
.ms-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:8px;
}
.ms-item{
  appearance:none;
  background:var(--bg-editor);
  border:1px solid var(--line-soft);
  color:var(--ink);
  border-radius:12px;
  padding:10px 4px;
  min-height:64px;
  cursor:pointer;
  font-family:var(--sans);
  font-size:11.5px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
  transition:background .12s,border-color .12s;
}
.ms-item:active{background:var(--bg-active);border-color:var(--accent-soft);}
.ms-item svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.ms-item b,.ms-item i,.ms-item u{font-size:16px;font-weight:600;}
.ms-item span{color:var(--ink-soft);font-weight:500;}
.ms-select{
  width:100%;
  height:44px;
  background:var(--bg-editor);
  border:1px solid var(--line-soft);
  border-radius:12px;
  padding:0 12px;
  font-family:var(--sans);
  font-size:13.5px;
  color:var(--ink);
  appearance:none;
  cursor:pointer;
}

/* 移动端"我的"菜单：用户信息卡 */
.ms-me-card{
  display:flex;
  align-items:center;
  gap:14px;
  padding:16px 14px;
  background:var(--bg-editor);
  border:1px solid var(--line-soft);
  border-radius:12px;
  margin-bottom:14px;
}
.ms-me-avatar{
  flex:0 0 auto;
  width:56px;height:56px;
  border-radius:50%;
  background:var(--accent);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:var(--sans);
  font-size:22px;
  font-weight:600;
  letter-spacing:.02em;
  overflow:hidden;
  box-shadow:0 0 0 1px var(--line-soft);
}
.ms-me-avatar img{width:100%;height:100%;object-fit:cover;display:block;}
.ms-me-info{flex:1 1 auto;min-width:0;}
.ms-me-name{
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  display:flex;
  align-items:center;
  gap:6px;
  flex-wrap:wrap;
}
.ms-me-username{
  font-size:12.5px;
  color:var(--ink-faint);
  margin-top:2px;
}
.ms-me-badge{
  display:inline-block;
  font-size:10.5px;
  font-weight:600;
  color:var(--accent);
  background:var(--accent-soft);
  padding:2px 7px;
  border-radius:10px;
  letter-spacing:.04em;
}
.ms-item-danger{color:#c44;}
.ms-item-danger:active{background:rgba(196,68,68,.1);border-color:rgba(196,68,68,.3);}

/* 桌面端隐藏移动端专用元素（仅 >760px 时隐藏；≤760px 的显示由 @media 760px 块控制） */
@media (min-width:761px){
  .mobile-bottom-nav,.mobile-toolbar,.mobile-share-btn{display:none!important;}
}

/* ============ 分享按钮 ============ */
.share-btn{
  background:var(--accent)!important;
  color:#fff!important;
  flex:0 0 auto;
  width:34px;
  height:32px;
  min-width:34px;
  padding:0!important;
  border-radius:6px;
  border:1px solid transparent;
}
.share-btn:hover{opacity:.92;background:var(--accent)!important;color:#fff!important;}
.share-btn svg{width:17px;height:17px;}

/* 分享访客统计小胶囊（编辑器内显示被访问情况，飞书式） */
.share-stats-btn{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:32px;
  margin-left:8px; /* 跟前面的格式刷按钮留呼吸空间 */
  padding:0 12px 0 10px;
  background:var(--bg-editor);
  border:1px solid var(--line);
  border-radius:16px;
  color:var(--ink-soft);
  font-family:var(--sans);
  font-size:12.5px;
  font-weight:500;
  cursor:pointer;
  transition:background .12s,color .12s,border-color .12s;
}
.share-stats-btn:hover{background:var(--bg-hover);color:var(--ink);}
.share-stats-btn.online{border-color:var(--accent);color:var(--accent);}
.share-stats-btn .ss-icon{width:16px;height:16px;flex:0 0 auto;}
.share-stats-btn .ss-dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--ink-faint);
  transition:background .2s, box-shadow .2s;
  flex:0 0 auto;
}
.share-stats-btn.online .ss-dot{
  background:#22c55e;
  box-shadow:0 0 0 3px rgba(34,197,94,.18);
  animation:ss-dot-breathe 2.4s ease-in-out infinite;
}
/* 缓慢呼吸：光晕扩散 + 微缩放，暗示有人在看；离线状态保持静态灰点 */
@keyframes ss-dot-breathe{
  0%,100%{ box-shadow:0 0 0 3px rgba(34,197,94,.18); transform:scale(1); }
  50%{ box-shadow:0 0 0 6px rgba(34,197,94,.08); transform:scale(1.18); }
}
@media (prefers-reduced-motion: reduce){
  .share-stats-btn.online .ss-dot{ animation:none; }
}
.share-stats-btn .ss-text{white-space:nowrap;line-height:1;}
/* 窄屏：只保留绿点 + 数字，去掉访客图标，省空间 */
@media (max-width:1100px){
  .share-stats-btn{padding:0 10px 0 8px;gap:5px;}
  .share-stats-btn .ss-icon{display:none;}
}

/* ============ 弹窗 ============ */
.modal-overlay{
  position:fixed;
  inset:0;
  background:rgba(40,35,25,.35);
  backdrop-filter:blur(2px);
  z-index:1000;
  display:flex;
  align-items:center;
  justify-content:center;
  animation:modalFadeIn .15s ease;
}
.modal-overlay[hidden]{display:none;}
/* dialogModal 需盖在其他弹窗（如 AI 排版 aiModal）之上：两者同为 .modal-overlay，
   DOM 顺序 dialogModal 在前会被后开的 aiModal 遮住，这里抬高层级保证可见 */
#dialogModal{z-index:1100;}
@keyframes modalFadeIn{from{opacity:0;}to{opacity:1;}}
.modal{
  background:var(--bg-editor);
  border:1px solid var(--line);
  border-radius:10px;
  box-shadow:0 10px 40px rgba(40,35,25,.2);
  width:440px;
  max-width:92vw;
  max-height:85vh;
  overflow:hidden;
  display:flex;
  flex-direction:column;
  animation:modalSlide .18s ease;
}
@keyframes modalSlide{from{opacity:0;transform:translateY(12px) scale(.98);}to{opacity:1;transform:translateY(0) scale(1);}}
.modal-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 18px;
  border-bottom:1px solid var(--line-soft);
  user-select:none;
}
.modal-title{
  font-family:var(--sans);
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  letter-spacing:.3px;
  user-select:none;
}
.modal-close{
  width:28px;height:28px;
  border:none;
  background:transparent;
  color:var(--ink-faint);
  font-size:20px;
  cursor:pointer;
  border-radius:6px;
  display:flex;align-items:center;justify-content:center;
}
.modal-close svg{width:18px;height:18px;display:block;}
.modal-close:hover{background:var(--bg-hover);color:var(--ink);}
.modal-body{
  padding:18px;
  overflow-y:auto;
}

/* ============ 统一按钮 ============ */
/* 铁律：所有按钮和标签文字不拆行，移动端窄屏也不拆 */
button{white-space:nowrap;}
.tag-banned,.tag-share,.sensitive-tag,.invite-tag,.flag-badge,.ms-me-badge{white-space:nowrap;}
.btn{
  height:32px;
  padding:0 16px;
  border:none;
  border-radius:6px;
  font-family:var(--sans);
  font-size:13px;
  font-weight:500;
  cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  white-space:nowrap;
  transition:background .12s,color .12s,border-color .12s,opacity .12s;
}
.btn-primary{background:var(--primary);color:var(--primary-ink);}
.btn-primary:hover{background:var(--primary-hover);}
.btn-secondary{
  background:transparent;
  color:var(--ink-soft);
  border:1px solid var(--line);
}
.btn-secondary:hover{background:var(--bg-hover);color:var(--ink);}
.btn-danger{background:#c44;color:#fff;}
.btn-danger:hover{background:#a33;}

/* ============ 统一确认/输入弹窗 ============ */
.dialog-modal{width:420px;}
.dialog-desc{
  margin:0;
  font-family:var(--sans);
  font-size:14px;
  line-height:1.6;
  color:var(--ink);
  white-space:pre-wrap;
}
.dialog-input{
  width:100%;
  height:36px;
  margin-top:12px;
  padding:0 12px;
  background:var(--bg-editor);
  border:1px solid var(--line);
  border-radius:6px;
  color:var(--ink);
  font-family:var(--sans);
  font-size:13px;
  outline:none;
  transition:border-color .12s,box-shadow .12s;
}
.dialog-input:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(111,137,122,.14);
}
/* 多行输入（提示词等长文本）：覆盖 .dialog-input 的单行高度 */
.dialog-textarea{
  height:auto;
  min-height:110px;
  max-height:260px;
  resize:vertical;
  line-height:1.6;
  padding:10px 12px;
  font-size:14px;
  white-space:pre-wrap;
}
.modal-foot{
  display:flex;
  justify-content:flex-end;
  gap:8px;
  padding:12px 18px;
  border-top:1px solid var(--line-soft);
}
.modal-foot .btn{min-width:72px;}
/* ============ 头像裁剪 ============ */
.avatar-crop-modal{width:440px;}
.avatar-crop-body{display:flex;flex-direction:column;align-items:center;gap:16px;}
.avatar-crop-desc,.avatar-crop-status{width:100%;margin:0;font-family:var(--sans);font-size:13px;line-height:1.55;color:var(--ink-soft);}
.avatar-crop-status{font-size:12px;color:var(--ink-faint);}
.avatar-crop-stage{
  position:relative;width:min(300px,72vw);aspect-ratio:1;overflow:hidden;border-radius:50%;
  background:repeating-conic-gradient(#e5e1d9 0 25%,#f7f4ee 0 50%) 50% / 18px 18px;
  box-shadow:0 0 0 1px var(--line),0 0 0 7px var(--bg-editor),0 0 0 8px var(--line-soft);
  cursor:grab;touch-action:none;outline:none;
}
.avatar-crop-stage:focus-visible{box-shadow:0 0 0 2px var(--accent),0 0 0 8px var(--bg-editor),0 0 0 9px var(--accent-soft);}
.avatar-crop-stage.dragging{cursor:grabbing;}
.avatar-crop-stage::after{
  content:'';position:absolute;inset:0;border:1px solid rgba(255,255,255,.65);border-radius:50%;
  pointer-events:none;box-shadow:inset 0 0 0 1px rgba(0,0,0,.1);
}
.avatar-crop-stage img{
  position:absolute;left:50%;top:50%;max-width:none;user-select:none;
  transform:translate(-50%,-50%);pointer-events:none;
}
.avatar-crop-zoom{display:flex;align-items:center;gap:12px;width:min(300px,72vw);font-family:var(--sans);font-size:13px;color:var(--ink-soft);}
.avatar-crop-zoom input{flex:1;accent-color:var(--accent);}
.avatar-crop-modal .modal-close svg{width:18px;height:18px;}

@media (max-width:640px){
  .avatar-crop-modal{max-height:92vh;}
  .avatar-crop-stage,.avatar-crop-zoom{width:min(300px,70vw);}
}

/* ============ 图片剪裁（自由选区，8 手柄） ============ */
.image-crop-modal{width:min(680px,92vw);}
.image-crop-body{display:flex;flex-direction:column;align-items:center;gap:12px;padding:16px 20px;}
.image-crop-desc{margin:0;font-family:var(--sans);font-size:13px;color:var(--ink-soft);}
.image-crop-stage{
  position:relative;
  margin:0 auto;
  overflow:hidden;
  background:#000;
  border-radius:8px;
  user-select:none;
  touch-action:none;
}
.image-crop-stage img{
  display:block;
  pointer-events:none;
}
.image-crop-selection{
  position:absolute;
  border:2px solid #fff;
  box-shadow:0 0 0 9999px rgba(0,0,0,.5);
  cursor:move;
  pointer-events:auto;
}
.image-crop-handle{
  position:absolute;
  background:#fff;
  border:2px solid var(--accent);
  z-index:2;
}
/* 4 角手柄：正方形 14×14 */
.image-crop-handle[data-handle="nw"],
.image-crop-handle[data-handle="ne"],
.image-crop-handle[data-handle="sw"],
.image-crop-handle[data-handle="se"]{
  width:14px;height:14px;border-radius:2px;
}
.image-crop-handle[data-handle="nw"]{left:-7px;top:-7px;cursor:nwse-resize;}
.image-crop-handle[data-handle="ne"]{right:-7px;top:-7px;cursor:nesw-resize;}
.image-crop-handle[data-handle="sw"]{left:-7px;bottom:-7px;cursor:nesw-resize;}
.image-crop-handle[data-handle="se"]{right:-7px;bottom:-7px;cursor:nwse-resize;}
/* 4 边手柄：长条，半透明视觉引导 */
.image-crop-handle[data-handle="n"],
.image-crop-handle[data-handle="s"]{
  left:50%;width:30px;height:8px;margin-left:-15px;border-radius:2px;
}
.image-crop-handle[data-handle="n"]{top:-4px;cursor:ns-resize;}
.image-crop-handle[data-handle="s"]{bottom:-4px;cursor:ns-resize;}
.image-crop-handle[data-handle="e"],
.image-crop-handle[data-handle="w"]{
  top:50%;width:8px;height:30px;margin-top:-15px;border-radius:2px;
}
.image-crop-handle[data-handle="e"]{right:-4px;cursor:ew-resize;}
.image-crop-handle[data-handle="w"]{left:-4px;cursor:ew-resize;}
.image-crop-modal .modal-close svg{width:18px;height:18px;}

@media (max-width:640px){
  .image-crop-modal{max-height:92vh;}
  .image-crop-stage{max-height:50vh;}
}

/* ============ AI 对话面板（右侧丝滑滑入，不虚化文档） ============ */
.ai-panel-overlay{
  position:fixed;
  inset:0;
  background:transparent;
  z-index:1050;
  opacity:0;
  transition:opacity .22s ease;
  pointer-events:none; /* 不拦截点击：用户可继续编辑文档、选区、点击工具栏 */
}
.ai-panel-overlay.show{
  opacity:1;
  pointer-events:none; /* 始终不拦截，保证文档可用 */
}
.ai-panel{
  position:fixed;
  top:0;right:0;bottom:0;
  width:380px;
  max-width:92vw;
  background:var(--bg-panel);
  border-left:1px solid var(--line);
  box-shadow:-12px 0 40px rgba(35,32,27,.08);
  z-index:1060;
  display:flex;
  flex-direction:column;
  transform:translateX(100%);
  transition:transform .26s cubic-bezier(.22,.61,.36,1);
  visibility:hidden;
}
.ai-panel.show{
  transform:translateX(0);
  visibility:visible;
}
.ai-panel[hidden]{display:none;}
.ai-panel-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:16px 18px 14px;
  border-bottom:1px solid var(--line-soft);
}
.ai-panel-title-wrap{
  display:flex;
  align-items:center;
  gap:10px;
  min-width:0;
}
.ai-panel-icon{
  width:22px;height:22px;
  color:var(--accent);
  flex:0 0 auto;
}
.ai-panel-title{
  font-family:var(--sans);
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  letter-spacing:.3px;
  user-select:none;
}
.ai-panel-context{
  font-size:11px;
  color:var(--ink-faint);
  margin-top:2px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  user-select:none;
}
.ai-panel-close{
  width:30px;height:30px;
  border:none;
  background:transparent;
  color:var(--ink-faint);
  border-radius:6px;
  cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:background .12s,color .12s;
  flex:0 0 auto;
}
.ai-panel-close svg{width:18px;height:18px;}
.ai-panel-close:hover{background:var(--bg-hover);color:var(--ink);}
.ai-quick-tags{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  padding:10px 14px 8px;
  border-bottom:1px solid var(--line-soft);
}
.ai-tag{
  height:26px;
  padding:0 10px;
  border:1px solid var(--line);
  background:var(--bg-editor);
  color:var(--ink-soft);
  border-radius:13px;
  font-family:var(--sans);
  font-size:11.5px;
  cursor:pointer;
  transition:background .12s,color .12s,border-color .12s;
}
.ai-tag:hover{
  border-color:var(--accent-soft);
  color:var(--accent);
  background:var(--bg-hover);
}
.ai-panel-messages{
  flex:1 1 auto;
  overflow-y:auto;
  padding:14px 14px 8px;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.ai-panel-messages::-webkit-scrollbar{width:6px;}
.ai-panel-messages::-webkit-scrollbar-thumb{background:var(--line);border-radius:3px;}
.ai-msg{
  max-width:88%;
  font-family:var(--sans);
  font-size:13px;
  line-height:1.6;
  color:var(--ink);
  word-wrap:break-word;
  white-space:pre-wrap;
  animation:aiMsgIn .2s ease;
}
@keyframes aiMsgIn{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:translateY(0);}}
.ai-msg-user{
  align-self:flex-end;
  background:var(--accent);
  color:var(--primary-ink);
  padding:8px 12px;
  border-radius:14px 14px 4px 14px;
}
.ai-msg-ai{
  align-self:flex-start;
  background:var(--bg-editor);
  border:1px solid var(--line-soft);
  padding:10px 12px;
  border-radius:14px 14px 14px 4px;
}
.ai-msg-ai p{margin:0 0 8px;}
.ai-msg-ai p:last-child{margin-bottom:0;}
.ai-msg-actions{
  display:flex;
  gap:6px;
  margin-top:8px;
  padding-top:8px;
  border-top:1px dashed var(--line-soft);
}
.ai-msg-action{
  height:24px;
  padding:0 10px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--ink-soft);
  border-radius:4px;
  font-family:var(--sans);
  font-size:11px;
  cursor:pointer;
  display:inline-flex;align-items:center;gap:4px;
  transition:background .12s,color .12s,border-color .12s;
}
.ai-msg-action:hover{
  border-color:var(--accent-soft);
  color:var(--accent);
  background:var(--bg-hover);
}
.ai-msg-action svg{width:12px;height:12px;}
.ai-msg-typing{
  display:inline-flex;
  gap:3px;
  padding:2px 0;
}
.ai-msg-typing span{
  width:6px;height:6px;
  background:var(--ink-faint);
  border-radius:50%;
  animation:aiTyping 1s infinite ease-in-out;
}
.ai-msg-typing span:nth-child(2){animation-delay:.15s;}
.ai-msg-typing span:nth-child(3){animation-delay:.3s;}
@keyframes aiTyping{0%,80%,100%{opacity:.3;transform:scale(.8);}40%{opacity:1;transform:scale(1);}}
.ai-msg-hint{
  align-self:center;
  margin:auto;
  padding:32px 16px;
  font-family:var(--sans);
  font-size:12.5px;
  line-height:1.6;
  color:var(--ink-faint);
  text-align:center;
}
.ai-panel-foot{
  display:flex;
  align-items:flex-end;
  gap:8px;
  padding:12px 14px 14px;
  border-top:1px solid var(--line-soft);
}
.ai-panel-input{
  flex:1 1 auto;
  min-height:36px;
  max-height:120px;
  padding:8px 12px;
  background:var(--bg-editor);
  border:1px solid var(--line);
  border-radius:8px;
  color:var(--ink);
  font-family:var(--sans);
  font-size:13px;
  line-height:1.5;
  resize:none;
  outline:none;
  transition:border-color .12s,box-shadow .12s;
}
.ai-panel-input:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(111,137,122,.12);
}
.ai-panel-send{
  width:36px;height:36px;
  border:none;
  background:var(--accent);
  color:var(--primary-ink);
  border-radius:8px;
  cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:background .12s,opacity .12s;
  flex:0 0 auto;
  position:relative;
}
.ai-panel-send:hover{background:var(--primary-hover);}
.ai-panel-send:disabled{opacity:.5;cursor:wait;}
.ai-panel-send svg{width:16px;height:16px;}
/* 发送按钮的「停止」模式：同一图标原位切换为停止，颜色变红 */
.ai-panel-send.is-stop{background:#c44;}
.ai-panel-send.is-stop:hover{background:#a33;}

/* 错误消息样式：红色文字 + 浅红底，无插入/复制按钮 */
.ai-msg-error{
  background:rgba(196,68,68,.08);
  border:1px solid rgba(196,68,68,.32);
  color:#c44;
}

/* 「回到底部」浮动按钮 */
.ai-back-to-bottom{
  position:absolute;
  right:18px;
  bottom:88px;
  width:32px;height:32px;
  border-radius:50%;
  border:1px solid var(--line);
  background:var(--bg-panel);
  color:var(--ink-soft);
  cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow);
  transition:background .12s,color .12s,opacity .15s;
  z-index:8;
}
.ai-back-to-bottom:hover{background:var(--bg-hover);color:var(--ink);}
.ai-back-to-bottom[hidden]{display:none;}
.ai-back-to-bottom svg{width:16px;height:16px;display:block;}

/* 移动端：AI 面板退化为底部抽屉 */
@media (max-width:760px){
  .ai-panel{
    top:auto;
    left:0;right:0;bottom:0;
    width:100%;
    max-width:100%;
    max-height:80vh;
    border-left:none;
    border-top:1px solid var(--line);
    border-radius:16px 16px 0 0;
    transform:translateY(100%);
    transition:transform .26s cubic-bezier(.22,.61,.36,1);
    box-shadow:0 -8px 40px rgba(35,32,27,.12);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .ai-panel.show{transform:translateY(0);}
  .ai-panel-head{padding:14px 16px 12px;}
  .ai-panel-icon{width:20px;height:20px;}
  .ai-panel-title{font-size:13px;}
  .ai-quick-tags{padding:8px 12px;}
  .ai-tag{height:28px;padding:0 12px;font-size:12px;}
  .ai-panel-messages{padding:12px;}
  .ai-panel-foot{padding:10px 12px 12px;}
  .ai-panel-input{font-size:14px;}
  .ai-panel-send{width:40px;height:40px;}
}

/* 分享按钮强调色（已在 ============ 分享按钮 ============ 段统一为图标按钮） */

/* 侧边栏底部链接 */
.sidebar-extra{
  flex:0 0 auto;
  padding:4px 12px 6px;
  display:flex;flex-direction:column;gap:2px;
  border-top:1px solid var(--line-soft);
}
.sidebar-link{
  display:flex;align-items:center;gap:8px;
  padding:7px 10px;
  border:none;background:transparent;
  border-radius:6px;cursor:pointer;
  font-family:var(--sans);font-size:13px;font-weight:500;
  color:var(--ink-soft);
  transition:background .12s,color .12s;
}
.sidebar-link:hover{background:var(--bg-hover);color:var(--ink);}
.sidebar-link.active{background:var(--bg-active);color:var(--accent);}
.sidebar-link.active svg{fill:currentColor;}

/* 设置面板 */
.settings-modal{width:720px;}
.settings-tabs{
  display:flex;gap:0;
  border-bottom:1px solid var(--line);
  padding:0 18px;
}
.settings-tab{
  padding:10px 16px;
  border:none;background:transparent;
  font-family:var(--sans);font-size:13px;font-weight:500;
  color:var(--ink-soft);cursor:pointer;
  border-bottom:2px solid transparent;
  transition:color .12s,border-color .12s;
}
.settings-tab:hover{color:var(--ink);}
.settings-tab.active{color:var(--accent);border-bottom-color:var(--accent);}
.auto-title-settings{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:18px 4px;color:var(--ink);
}
.auto-title-copy{min-width:0;}
.auto-title-copy h3{margin:0 0 6px;font-size:15px;font-weight:650;}
.auto-title-copy p{margin:0;color:var(--ink-soft);font-size:13px;line-height:1.65;}
.auto-title-copy small{display:block;margin-top:7px;color:var(--ink-faint);font-size:12px;line-height:1.55;}
.auto-title-toggle{position:relative;flex:0 0 auto;width:46px;height:28px;cursor:pointer;}
.auto-title-toggle input{position:absolute;opacity:0;width:1px;height:1px;}
.auto-title-toggle span{
  position:absolute;inset:0;border-radius:999px;background:var(--line);
  box-shadow:inset 0 0 0 1px var(--line-soft);transition:background .16s ease;
}
.auto-title-toggle span::after{
  content:"";position:absolute;width:22px;height:22px;left:3px;top:3px;border-radius:50%;
  background:var(--bg-editor);box-shadow:0 1px 3px rgba(0,0,0,.2);transition:transform .16s ease;
}
.auto-title-toggle input:checked + span{background:var(--accent);}
.auto-title-toggle input:checked + span::after{transform:translateX(18px);}
.auto-title-toggle input:focus-visible + span{outline:2px solid var(--accent-soft);outline-offset:3px;}
.auto-title-toggle input:disabled + span{opacity:.55;cursor:wait;}
@media (max-width:560px){.auto-title-settings{align-items:flex-start;gap:14px;}.auto-title-toggle{margin-top:4px;}}


/* 导入面板 */
.import-panel{padding:18px 4px;color:var(--ink);}
.import-head h3{margin:0 0 6px;font-size:15px;font-weight:650;}
.import-head p{margin:0 0 4px;color:var(--ink-soft);font-size:13px;line-height:1.65;}
.import-head code{background:var(--bg-hover);padding:1px 5px;border-radius:4px;font-size:12px;}
.import-head small{display:block;color:var(--ink-faint);font-size:11.5px;line-height:1.5;}
.import-actions{display:flex;gap:10px;margin-top:16px;}
.import-pick-btn{
  flex:0 0 auto;
  display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 16px;
  border:1px solid var(--accent-soft);
  background:var(--accent);color:#fff;
  border-radius:8px;cursor:pointer;
  font-family:var(--sans);font-size:13px;font-weight:500;
  transition:background .12s,opacity .12s;
}
.import-pick-btn:hover{opacity:.92;}
.import-abort-btn{
  flex:0 0 auto;
  height:38px;padding:0 14px;
  border:1px solid var(--line);background:var(--bg-editor);
  color:var(--ink-soft);border-radius:8px;cursor:pointer;
  font-family:var(--sans);font-size:13px;
}
.import-abort-btn:hover{background:var(--bg-hover);color:#c44;}
.import-progress{margin-top:16px;}
.import-progress-bar{
  height:6px;background:var(--line);border-radius:3px;overflow:hidden;
}
.import-progress-fill{
  height:100%;width:0;background:var(--accent);
  transition:width .2s ease;
}
.import-progress-text{
  margin-top:6px;font-size:12px;color:var(--ink-faint);
}
.import-result{margin-top:12px;}
.import-summary{display:flex;align-items:center;gap:12px;font-size:13px;}
.import-ok{color:#22a06b;font-weight:500;}
.import-fail{color:#c44;font-weight:500;}
.import-show-log{
  margin-left:auto;height:28px;padding:0 12px;
  border:1px solid var(--line);background:transparent;
  color:var(--ink-soft);border-radius:6px;cursor:pointer;
  font-family:var(--sans);font-size:12px;
}
.import-show-log:hover{background:var(--bg-hover);}
.import-log{
  margin-top:12px;max-height:200px;overflow-y:auto;
  background:var(--bg-hover);border-radius:6px;padding:8px 10px;
  font-family:var(--mono);font-size:11.5px;color:var(--ink-soft);
}
.import-log[hidden]{display:none;}
.import-log-line{padding:2px 0;border-bottom:1px solid var(--line-soft);}
.import-log-line:last-child{border-bottom:none;}

/* 导入预览区 */
.import-preview{margin-top:16px;}
.import-preview-head{font-size:13px;color:var(--ink);font-weight:500;margin-bottom:8px;}
.import-preview-list{
  max-height:220px;overflow-y:auto;
  background:var(--bg-hover);border-radius:8px;padding:6px;
}
.import-preview-folder{
  padding:7px 8px;border-radius:6px;color:var(--ink-soft);
}
.import-preview-folder:hover{background:var(--bg-editor);}
.import-preview-row{display:flex;align-items:center;gap:8px;}
.import-preview-name{flex:1 1 auto;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.import-preview-count{flex:0 0 auto;font-size:11.5px;color:var(--ink-faint);font-variant-numeric:tabular-nums;}
.import-preview-path{
  font-size:11px;color:var(--ink-faint);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  margin-left:23px;margin-top:2px;
  font-family:var(--mono,ui-monospace,monospace);
}
.import-preview-note{
  margin-top:8px;padding:8px 10px;border-radius:6px;
  background:var(--highlight);color:var(--ink-soft);font-size:12px;line-height:1.55;
}
.import-preview-actions{display:flex;gap:10px;margin-top:14px;}
.import-confirm-btn{
  flex:0 0 auto;height:38px;padding:0 20px;
  border:1px solid var(--accent-soft);background:var(--accent);color:#fff;
  border-radius:8px;cursor:pointer;
  font-family:var(--sans);font-size:13px;font-weight:500;
  transition:background .12s,opacity .12s;
}
.import-confirm-btn:hover{opacity:.92;}
.import-repick-btn{
  flex:0 0 auto;height:38px;padding:0 16px;
  border:1px solid var(--line);background:var(--bg-editor);
  color:var(--ink-soft);border-radius:8px;cursor:pointer;
  font-family:var(--sans);font-size:13px;
}
.import-repick-btn:hover{background:var(--bg-hover);color:var(--ink);}
.import-undo{
  margin-top:16px;padding:12px 14px;
  border:1px dashed var(--line);border-radius:8px;
  background:var(--bg-editor);
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
}
.import-undo-info{
  flex:1 1 200px;display:flex;align-items:center;gap:8px;
  font-size:12.5px;color:var(--ink-soft);line-height:1.5;
}
.import-undo-info strong{color:var(--ink);font-weight:600;}
.import-undo-btn{
  flex:0 0 auto;height:34px;padding:0 14px;
  border:1px solid var(--danger-soft,#e8b4b4);background:transparent;
  color:var(--danger,#c44);border-radius:6px;cursor:pointer;
  font-family:var(--sans);font-size:12.5px;font-weight:500;
  transition:background .12s;
}
.import-undo-btn:hover:not(:disabled){background:var(--danger,#c44);color:#fff;border-color:var(--danger,#c44);}
.import-undo-btn:disabled{opacity:.6;cursor:not-allowed;}
.export-panel{padding:4px 0;}
.export-head{margin-bottom:16px;}
.export-head h3{font-size:16px;color:var(--ink);margin-bottom:6px;font-weight:600;}
.export-head p{font-size:13px;color:var(--ink-soft);line-height:1.6;}
.export-actions{margin-top:8px;}
.export-all-btn{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 18px;
  border:1px solid var(--accent-soft);background:var(--accent);color:#fff;
  border-radius:8px;cursor:pointer;
  font-family:var(--sans);font-size:13px;font-weight:500;
  transition:background .12s,opacity .12s;
}
.export-all-btn:hover:not(:disabled){opacity:.92;}
.export-all-btn:disabled{opacity:.6;cursor:not-allowed;}
.export-tip{
  margin-top:14px;font-size:12px;color:var(--ink-faint);line-height:1.6;
  padding:10px 12px;background:var(--bg-hover);border-radius:6px;
}


/* 用户管理表 */
.user-table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;}
.user-table{width:100%;border-collapse:collapse;font-size:13px;}
.user-table th{padding:6px 8px;text-align:left;font-size:11px;color:var(--ink-faint);border-bottom:1px solid var(--line);font-weight:500;text-transform:uppercase;letter-spacing:.5px;white-space:nowrap;}
.user-table td{padding:8px;border-bottom:1px solid var(--line-soft);color:var(--ink);white-space:nowrap;}
.user-table tr:hover td{background:var(--bg-hover);}
.user-ban-btn,.user-share-btn,.user-note-btn{
  border:1px solid var(--line);background:var(--bg-editor);
  border-radius:4px;padding:3px 8px;font-size:12px;cursor:pointer;
  color:var(--ink-soft);font-family:var(--sans);
  white-space:nowrap;
  transition:background .12s;
}
.user-ban-btn:hover{background:rgba(196,68,68,.1);color:#c44;border-color:#c44;}
.user-share-btn.active{background:var(--accent);color:#fff;border-color:var(--accent);}
.user-note-input{
  border:1px solid var(--line);background:var(--bg);
  border-radius:4px;padding:3px 6px;font-size:12px;
  font-family:var(--sans);color:var(--ink);width:120px;outline:none;
}
.user-note-input:focus{border-color:var(--accent);}
.tag-banned{background:rgba(196,68,68,.12);color:#c44;padding:2px 8px;border-radius:10px;font-size:11px;white-space:nowrap;}
.tag-share{background:rgba(138,122,92,.15);color:var(--accent);padding:2px 8px;border-radius:10px;font-size:11px;white-space:nowrap;}

/* 回收站 */
.trash-modal{width:520px;}
.trash-item{
  display:flex;align-items:center;justify-content:space-between;
  padding:10px 12px;border-radius:6px;
  transition:background .12s;
}
.trash-item:hover{background:var(--bg-hover);}
.trash-item-title{font-size:13px;color:var(--ink);font-weight:500;flex:1 1 auto;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.trash-item-meta{font-size:11px;color:var(--ink-faint);margin-top:2px;flex:0 0 auto;white-space:nowrap;}
.trash-item-actions{display:flex;gap:6px;flex:0 0 auto;}
.trash-restore,.trash-delete{
  border:1px solid var(--line);background:var(--bg-editor);
  border-radius:4px;padding:4px 10px;font-size:12px;cursor:pointer;
  font-family:var(--sans);color:var(--ink-soft);transition:background .12s;
  white-space:nowrap;
}
.trash-restore:hover{background:var(--highlight);color:var(--accent);border-color:var(--accent-soft);}
.trash-delete:hover{background:rgba(196,68,68,.1);color:#c44;border-color:#c44;}
.trash-empty{text-align:center;padding:40px 20px;color:var(--ink-faint);font-size:13px;}

/* 审核面板 */
.review-item{
  padding:12px;border:1px solid var(--line);border-radius:8px;
  margin-bottom:10px;
}
.review-item.flagged{border-color:rgba(196,68,68,.3);background:rgba(196,68,68,.02);}
.review-item-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px;}
.review-item-title{font-size:14px;font-weight:600;color:var(--ink);}
.review-item-author{font-size:12px;color:var(--ink-faint);}
.review-item-content{font-size:12px;color:var(--ink-soft);max-height:100px;overflow:hidden;margin-bottom:8px;line-height:1.5;}
.review-item-actions{display:flex;gap:6px;}
.review-btn{
  border:1px solid var(--line);background:var(--bg-editor);
  border-radius:4px;padding:4px 12px;font-size:12px;cursor:pointer;
  font-family:var(--sans);color:var(--ink-soft);transition:background .12s;
  white-space:nowrap;
}
.review-btn.flag{color:#c44;border-color:rgba(196,68,68,.3);}
.review-btn.flag:hover{background:rgba(196,68,68,.1);color:#c44;}
.review-btn.pass:hover{background:var(--highlight);color:var(--accent);border-color:var(--accent-soft);}
.flag-badge{background:rgba(196,68,68,.12);color:#c44;padding:2px 8px;border-radius:10px;font-size:11px;white-space:nowrap;}

/* 敏感词管理 */
.sensitive-input-row{display:flex;gap:8px;margin-bottom:14px;}
.sensitive-input{
  flex:1;height:34px;border:1px solid var(--line);background:var(--bg);
  border-radius:6px;padding:0 12px;font-family:var(--sans);font-size:13px;
  color:var(--ink);outline:none;
}
.sensitive-input:focus{border-color:var(--accent);}
.sensitive-add-btn{
  height:34px;padding:0 16px;background:var(--accent);color:#fff;
  border:none;border-radius:6px;cursor:pointer;font-size:13px;font-weight:500;
  font-family:var(--sans);white-space:nowrap;flex-shrink:0;
}
.sensitive-list{display:flex;flex-wrap:wrap;gap:6px;}
.sensitive-tag{
  display:inline-flex;align-items:center;gap:4px;
  background:var(--bg-hover);border:1px solid var(--line);
  border-radius:14px;padding:4px 10px;font-size:13px;color:var(--ink);
}
.sensitive-tag-remove{
  background:none;border:none;cursor:pointer;color:var(--ink-faint);
  font-size:14px;padding:0;line-height:1;
  display:inline-flex;align-items:center;justify-content:center;
}
.sensitive-tag-remove svg{width:12px;height:12px;display:block;}
.sensitive-tag-remove:hover{color:#c44;}

/* 分享主题选择 */
.share-theme-section{margin-top:18px;}
.share-theme-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;}
.share-theme-current{font-size:11.5px;color:var(--accent);white-space:nowrap;}
.share-theme-help{margin-top:5px;font-size:11.5px;line-height:1.55;color:var(--ink-faint);}
.share-theme-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:10px;}
.share-theme-btn{
  position:relative;min-width:0;padding:7px;border:1px solid var(--line);background:var(--bg-editor);
  border-radius:8px;cursor:pointer;font-family:var(--sans);font-size:12px;
  color:var(--ink-soft);text-align:left;transition:background .12s,border-color .12s,box-shadow .12s,transform .12s;
}
.share-theme-btn:hover{background:var(--bg-hover);border-color:var(--accent-soft);}
.share-theme-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.share-theme-btn.active{border-color:var(--accent);color:var(--ink);background:var(--highlight);box-shadow:0 0 0 1px var(--accent);}
.share-theme-preview{display:block;height:42px;padding:9px 8px;border:1px solid rgba(32,41,46,.12);border-radius:5px;overflow:hidden;}
.share-theme-preview-title,.share-theme-preview-line{display:block;border-radius:999px;background:currentColor;opacity:.72;}
.share-theme-preview-title{width:50%;height:5px;margin-bottom:7px;}
.share-theme-preview-line{width:88%;height:3px;margin-top:4px;opacity:.36;}
.share-theme-preview-line.short{width:65%;}
.share-theme-btn.theme-light .share-theme-preview{background:#fffdf9;color:#20292e;}
.share-theme-btn.theme-feishu .share-theme-preview{background:#fff;color:#2a3430;}
.share-theme-btn.theme-dark .share-theme-preview{background:#222829;border-color:#3a4441;color:#eceae4;}
.share-theme-card-foot{display:flex;align-items:center;justify-content:space-between;gap:4px;margin-top:7px;font-weight:600;line-height:1.2;}
.share-theme-check{width:14px;height:14px;color:var(--accent);opacity:0;transform:scale(.7);transition:opacity .12s,transform .12s;}
.share-theme-btn.active .share-theme-check{opacity:1;transform:scale(1);}

/* Share page header: sticky reader controls with a soft glass transition into the document. */
.share-topbar{
  position:sticky;top:0;
  z-index:90;
  isolation:isolate;
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 16px;
  pointer-events:auto;
  background:var(--bg);
  background:color-mix(in srgb,var(--bg) 88%,transparent);
  border-bottom:1px solid color-mix(in srgb,var(--line-soft) 76%,transparent);
  box-shadow:0 1px 0 rgba(30,32,29,.025);
  backdrop-filter:blur(16px) saturate(1.06);
  -webkit-backdrop-filter:blur(16px) saturate(1.06);
  user-select:none;
}
.share-topbar::after{
  content:"";
  position:absolute;left:0;right:0;top:100%;height:20px;
  pointer-events:none;
  background:linear-gradient(to bottom,color-mix(in srgb,var(--bg) 52%,transparent),transparent);
}
.share-brand-mark{
  display:inline-flex;align-items:center;
  width:auto;height:34px;
  border-radius:6px;
  text-decoration:none;
  transition:opacity .12s;
}
.share-brand-mark:hover{opacity:.7;}
.share-brand-logo{display:block;height:auto;width:auto;max-width:none;}
.share-brand-mark .share-brand-logo{height:34px;}
/* 双版本 logo 按主题自动切换：组合选择器优先级 (0,2,0)，覆盖 .share-brand-logo 的 display:block。
   修复 bug：原本 footer 的 light+dark 两个 img 同时显示，dark 版本白底看不清。*/
.share-brand-logo.brand-logo-dark{display:none;}
[data-theme="dark"] .share-brand-logo.brand-logo-light{display:none;}
[data-theme="dark"] .share-brand-logo.brand-logo-dark{display:block;}
.share-tools{
  display:flex;align-items:center;gap:8px;
}

/* 分享页主题切换按钮 */
.share-theme-toggle{
  width:36px;height:36px;border:1px solid var(--line);
  background:var(--bg-editor);color:var(--ink-soft);
  border-radius:8px;cursor:pointer;font-size:16px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 2px 8px rgba(0,0,0,.08);transition:background .12s,color .12s;
}
.share-theme-toggle:hover{background:var(--bg-hover);color:var(--ink);}
.share-theme-toggle svg{width:18px;height:18px;}
.share-toc-toggle{
  display:none;align-items:center;gap:6px;
  height:36px;padding:0 11px;
  border:1px solid var(--line);border-radius:8px;
  background:var(--bg-editor);color:var(--ink-soft);
  font-family:var(--sans);font-size:12.5px;font-weight:600;cursor:pointer;
  box-shadow:0 2px 8px rgba(0,0,0,.08);
}
.share-toc-toggle:hover{background:var(--bg-hover);color:var(--ink);}
.share-toc-toggle svg{width:17px;height:17px;}
.share-toc-toggle[hidden]{display:none!important;}
.share-reading-dock,.share-chapter-dock{display:none;}

/* 分享页右上角登录/注册入口（融入工具栏，与主题切换按钮同视觉重量） */
.share-login-btn{
  display:inline-flex;align-items:center;gap:6px;
  height:36px;padding:0 14px;
  border:1px solid var(--accent-soft);
  background:var(--accent);color:#fff;
  border-radius:8px;cursor:pointer;
  font-family:var(--sans);font-size:13px;font-weight:600;
  text-decoration:none;
  box-shadow:0 2px 8px rgba(111,137,122,.28);
  transition:background .12s,color .12s,opacity .12s;
  white-space:nowrap;
}
.share-login-btn:hover{background:var(--accent-hover,var(--primary-hover));color:#fff;}
.share-login-btn:active{transform:translateY(1px);}
.share-login-btn svg{width:16px;height:16px;flex-shrink:0;}
/* 已登录态：实色 CTA，引导回到工作台 */
.share-login-btn.logged-in{background:var(--accent);color:#fff;border-color:transparent;}
.share-login-btn.logged-in:hover{opacity:.9;background:var(--accent);color:#fff;}

/* 邀请码管理 */
.invite-modal{width:680px;}
.invite-toolbar{
  display:flex;align-items:center;justify-content:space-between;
  margin-bottom:14px;gap:12px;flex-wrap:wrap;
}
.invite-stat{font-size:12.5px;color:var(--ink-soft);white-space:nowrap;}
.invite-actions{display:flex;gap:6px;}
.invite-actions .seg-btn{
  height:30px;padding:0 14px;
  background:var(--accent);color:#fff;
  border:none;border-radius:6px;cursor:pointer;
  font-family:var(--sans);font-size:12.5px;font-weight:500;
}
.invite-actions .seg-btn:hover{opacity:.92;}
.invite-empty{
  padding:40px 0;text-align:center;
  color:var(--ink-faint);font-size:13px;
}
.invite-table-wrap{overflow-x:auto;}
.invite-table{
  width:100%;border-collapse:collapse;font-size:13px;
}
.invite-table th,.invite-table td{
  padding:9px 10px;text-align:left;
  border-bottom:1px solid var(--line-soft);
  vertical-align:middle;
}
.invite-table th{
  font-size:11.5px;color:var(--ink-faint);font-weight:500;
  text-transform:none;
}
.invite-code{
  font-family:var(--mono);font-size:13.5px;font-weight:600;
  color:var(--accent);
  background:var(--highlight);padding:3px 8px;border-radius:4px;
  letter-spacing:.5px;
}
.invite-tag{
  display:inline-block;padding:2px 8px;border-radius:10px;
  font-size:11px;font-weight:500;white-space:nowrap;
}
.invite-tag.unused{background:rgba(138,122,92,.15);color:var(--accent);}
.invite-tag.used{background:var(--line-soft);color:var(--ink-faint);}
.invite-user{display:flex;flex-direction:column;}
.invite-user small{font-size:12px;color:var(--ink-faint);}
.invite-time{font-size:12px;color:var(--ink-faint);white-space:nowrap;}
.invite-del{
  border:none;background:transparent;color:var(--ink-faint);
  cursor:pointer;font-size:13px;padding:4px 8px;border-radius:4px;
  font-family:var(--sans);white-space:nowrap;
}
.invite-del:hover{background:rgba(196,68,68,.1);color:#c44;}
.invite-share-btn{
  height:26px;padding:0 10px;
  background:var(--accent);color:#fff;
  border:none;border-radius:5px;cursor:pointer;
  font-family:var(--sans);font-size:12px;font-weight:500;
  white-space:nowrap;display:inline-flex;align-items:center;gap:4px;
}
.invite-share-btn:hover{opacity:.92;}
.invite-share-btn svg{width:13px;height:13px;}
.invite-row-actions{display:flex;align-items:center;gap:6px;justify-content:flex-end;}
.ink-faint{color:var(--ink-faint);}

/* ============ 邀请码分享弹窗 ============ */
.invite-share-modal{width:520px;max-width:92vw;}
.invite-share-body{display:flex;flex-direction:column;gap:16px;}
.invite-share-target{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;background:var(--highlight);border-radius:8px;
}
.invite-share-target .invite-code{font-size:14px;}
.invite-share-target-label{font-size:12px;color:var(--ink-faint);white-space:nowrap;}
.invite-share-section-label{
  font-size:12px;color:var(--ink-faint);font-weight:500;
  margin-bottom:8px;display:block;
}
.invite-share-preview{
  width:100%;min-height:72px;box-sizing:border-box;
  padding:10px 12px;border:1px solid var(--line-soft);border-radius:8px;
  background:var(--bg-card);color:var(--ink-soft);
  font-family:var(--sans);font-size:13px;line-height:1.6;
  resize:vertical;white-space:pre-wrap;word-break:break-all;
}
.invite-share-preview:focus{outline:none;border-color:var(--accent);}
.invite-share-actions{display:flex;gap:8px;flex-wrap:wrap;}
.invite-share-actions .btn{
  flex:1;min-width:120px;justify-content:center;
}
.invite-share-tip{
  font-size:11.5px;color:var(--ink-faint);line-height:1.5;
  margin-top:-4px;
}
@media (max-width:540px) and (pointer:coarse){
  .invite-share-actions .btn{flex:1 1 100%;}
}

/* 分享表单 */
.share-section{margin-bottom:18px;}
.share-label{
  font-size:12.5px;
  color:var(--ink-soft);
  font-weight:500;
  margin-bottom:8px;
}
.share-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.share-row .share-label{margin-bottom:0;}

/* 分段按钮（权限切换） */
.share-seg{
  display:flex;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:6px;
  padding:3px;
  gap:2px;
}
.seg-btn{
  flex:1;
  height:30px;
  border:none;
  background:transparent;
  color:var(--ink-soft);
  border-radius:4px;
  cursor:pointer;
  font-family:var(--sans);
  font-size:12.5px;
  white-space:nowrap;
  transition:all .12s;
}
.seg-btn:hover{color:var(--ink);}
.seg-btn.active{
  background:var(--accent);
  color:#fff;
  font-weight:500;
}

/* 开关 */
.switch{position:relative;display:inline-block;width:38px;height:22px;}
.switch input{opacity:0;width:0;height:0;}
.switch-slider{
  position:absolute;
  cursor:pointer;
  inset:0;
  background:var(--line);
  border-radius:22px;
  transition:.2s;
}
.switch-slider:before{
  content:"";
  position:absolute;
  height:16px;width:16px;
  left:3px;bottom:3px;
  background:#fff;
  border-radius:50%;
  transition:.2s;
  box-shadow:0 1px 3px rgba(0,0,0,.2);
}
.switch input:checked + .switch-slider{background:var(--accent);}
.switch input:checked + .switch-slider:before{transform:translateX(16px);}

/* 拼码输入 */
.share-pin-row{
  margin-top:10px;
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
}
.share-pin{display:flex;gap:8px;}
.pin-input{
  width:38px;height:42px;
  text-align:center;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:6px;
  color:var(--ink);
  font-family:var(--sans);
  font-size:18px;
  font-weight:600;
  font-variant-numeric:tabular-nums;
  outline:none;
  transition:border-color .15s;
}
.pin-input:focus{border-color:var(--accent);box-shadow:0 0 0 2px var(--highlight);}
.share-pin-hint{font-size:11.5px;color:var(--ink-faint);}

/* 日期 + 确定按钮 */
.share-exp-row{
  margin-top:10px;
  display:flex;
  gap:8px;
}
.share-exp-row .share-input{flex:1;margin-top:0;}
.share-confirm-btn{
  flex:0 0 auto;
  height:34px;
  padding:0 16px;
  background:var(--accent);
  color:#fff;
  border:none;
  border-radius:6px;
  cursor:pointer;
  font-size:12.5px;
  font-weight:500;
  transition:opacity .15s;
}
.share-confirm-btn:hover{opacity:.92;}

/* 空状态 */
.share-empty{
  padding:36px 20px;
  text-align:center;
}
.share-empty-icon{font-size:40px;margin-bottom:12px;opacity:.6;}
.share-empty-text{
  font-size:14px;
  color:var(--ink-soft);
  margin-bottom:18px;
}
.share-create-btn{
  height:38px;
  padding:0 24px;
  background:var(--accent);
  color:#fff;
  border:none;
  border-radius:6px;
  cursor:pointer;
  font-family:var(--sans);
  font-size:13px;
  font-weight:500;
  transition:opacity .15s;
}
.share-create-btn:hover{opacity:.92;}

/* 通用输入 */
.share-input{
  width:100%;
  height:34px;
  padding:0 12px;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:6px;
  color:var(--ink);
  font-family:var(--sans);
  font-size:13px;
  outline:none;
}
.share-input:focus{border-color:var(--accent-soft);}
.share-actions{
  display:flex;
  gap:8px;
  margin-top:20px;
}
.share-revoke{
  flex:1;
  height:36px;
  background:transparent;
  color:#c44;
  border:1px solid #c44;
  border-radius:6px;
  cursor:pointer;
  font-size:12.5px;
  transition:all .15s;
}
.share-revoke:hover{background:#c44;color:#fff;}
/* 分享弹窗：最近访客列表 */
.share-visitors-section{
  margin-top:18px;
  padding-top:16px;
  border-top:1px dashed var(--line);
}
.share-visitors-meta{
  color:var(--ink-faint);
  font-weight:400;
  font-size:12px;
  margin-left:4px;
}
.share-visitors-list{
  margin-top:10px;
  max-height:240px;
  overflow-y:auto;
  display:flex;
  flex-direction:column;
  gap:2px;
}
.share-visitors-loading,.share-visitors-empty{
  padding:18px 0;
  text-align:center;
  color:var(--ink-faint);
  font-size:12.5px;
}
.share-visitor{
  display:flex;
  align-items:center;
  gap:10px;
  padding:6px 4px;
  border-radius:6px;
}
.share-visitor:hover{background:var(--bg-hover);}
.share-visitor-avatar{
  width:28px;height:28px;
  border-radius:50%;
  background:var(--code-bg);
  color:var(--ink-faint);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:600;
  flex-shrink:0;
}
.share-visitor-avatar.registered{
  background:var(--accent-soft);
  color:var(--accent);
}
.share-visitor-info{
  display:flex;
  flex-direction:column;
  gap:1px;
  min-width:0;
}
.share-visitor-name{
  font-size:13px;
  color:var(--ink-soft);
  font-weight:500;
}
.share-visitor.registered .share-visitor-name{color:var(--ink);font-weight:600;}
.share-visitor-meta{
  font-size:11.5px;
  color:var(--ink-faint);
}
.share-link-section{
  margin-top:18px;
  padding-top:16px;
  border-top:1px dashed var(--line);
}
.share-link-label{
  font-size:11.5px;
  color:var(--ink-faint);
  margin-bottom:6px;
  letter-spacing:.5px;
}
.share-link-row{display:flex;gap:6px;}
.share-link-url{
  flex:1;
  height:34px;
  padding:0 10px;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:6px;
  color:var(--ink-soft);
  font-family:var(--mono);
  font-size:12px;
  outline:none;
}
.share-copy{
  flex:0 0 auto;
  height:34px;
  padding:0 14px;
  background:var(--bg-hover);
  color:var(--ink);
  border:1px solid var(--line);
  border-radius:6px;
  cursor:pointer;
  font-size:12.5px;
  transition:all .12s;
  white-space:nowrap;
}
.share-copy:hover{background:var(--accent);color:#fff;border-color:var(--accent);}
.share-copy-link{background:var(--bg);}
@media(max-width:520px){
  .share-link-row{flex-wrap:wrap;}
  .share-link-url{flex-basis:100%;}
  .share-copy{flex:1;padding:0 10px;}
}
.share-hint{
  margin-top:8px;
  font-size:11.5px;
  color:var(--ink-faint);
}
.share-loading,.share-error{
  padding:24px;
  text-align:center;
  color:var(--ink-faint);
  font-size:13px;
}
.share-error{color:#c44;}

/* ============ 编辑模式目录大纲（飞书式，宽屏左侧浮动） ============ */
.doc-outline{
  position:fixed;
  width:clamp(220px, 16vw, 300px);
  max-height:calc(100vh - 200px);
  overflow-y:auto;
  z-index:10;
  padding:0 8px;
}
.doc-outline[hidden]{display:none;}
.doc-outline::-webkit-scrollbar{width:4px;}
.doc-outline::-webkit-scrollbar-thumb{background:var(--line);border-radius:2px;}
.outline-title{
  font-size:11px;
  color:var(--ink-faint);
  margin-bottom:8px;
  letter-spacing:1px;
}
.outline-list{list-style:none;margin:0;padding:0;}
.outline-list li{margin:1px 0;}
.outline-list a{
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  padding:4px 8px;
  color:var(--ink-soft);
  text-decoration:none;
  border-radius:4px;
  font-size:12.5px;
  line-height:1.4;
  overflow:hidden;
  word-break:break-word;
  transition:all .12s;
  border-left:2px solid transparent;
}
.outline-list a:hover{background:var(--bg-hover);color:var(--ink);}
.outline-list a.active{
  color:var(--accent);
  font-weight:500;
  background:var(--highlight);
  border-left-color:var(--accent);
}
@media (max-width:1340px){.doc-outline{display:none!important;}}

/* 窄屏与阅读模式的章节入口：平板侧栏、手机底部抽屉 */
.responsive-outline-launcher{
  position:fixed;right:116px;top:20px;z-index:1001;
  height:38px;padding:0 13px;
  display:inline-flex;align-items:center;gap:6px;
  border:1px solid var(--line);border-radius:19px;
  background:var(--bg-editor);color:var(--ink-soft);
  box-shadow:var(--shadow);font-family:var(--sans);font-size:12.5px;font-weight:600;cursor:pointer;
}
.responsive-outline-launcher svg{width:16px;height:16px;}
.responsive-outline-launcher:hover{background:var(--highlight);color:var(--ink);}
.responsive-outline-launcher[hidden],.responsive-outline-overlay[hidden],.responsive-outline[hidden]{display:none;}
.responsive-outline-overlay{position:fixed;inset:0;z-index:1500;background:rgba(20,22,22,.22);backdrop-filter:blur(2px);}
.responsive-outline{
  position:fixed;z-index:1501;top:72px;right:20px;bottom:20px;
  width:min(344px,calc(100vw - 40px));
  display:flex;flex-direction:column;
  overflow:hidden;background:var(--bg-editor);border:1px solid var(--line);border-radius:14px;box-shadow:0 18px 48px rgba(30,25,18,.2);
}
.responsive-outline-head{height:54px;padding:0 12px 0 18px;border-bottom:1px solid var(--line-soft);display:flex;align-items:center;justify-content:space-between;flex:0 0 auto;}
.responsive-outline-head strong{font-family:var(--sans);font-size:15px;color:var(--ink);}
.responsive-outline-close{width:40px;height:40px;border:0;border-radius:10px;background:transparent;color:var(--ink-soft);display:grid;place-items:center;cursor:pointer;}
.responsive-outline-close:hover{background:var(--bg-hover);color:var(--ink);}
.responsive-outline-close svg{width:20px;height:20px;}
.responsive-outline-list{list-style:none;margin:0;padding:10px 10px 18px;overflow:auto;}
.responsive-outline-list li{margin:1px 0;}
.responsive-outline-list button{width:100%;min-height:42px;padding:9px 10px;border:0;border-left:2px solid transparent;border-radius:6px;background:transparent;color:var(--ink-soft);font-family:var(--sans);font-size:14px;line-height:1.45;text-align:left;cursor:pointer;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;word-break:break-word;}
.responsive-outline-list .level-h2 button{padding-left:22px;}
.responsive-outline-list .level-h3 button{padding-left:34px;}
.responsive-outline-list button:hover{background:var(--bg-hover);color:var(--ink);}
.responsive-outline-list button.active{background:var(--highlight);border-left-color:var(--accent);color:var(--accent);font-weight:600;}
@media (max-width:1340px){
  .responsive-outline-launcher{top:auto;bottom:20px;right:20px;min-height:44px;border-radius:22px;}
}
@media (max-width:760px){
  .responsive-outline-launcher{right:16px;bottom:calc(16px + env(safe-area-inset-bottom));width:48px;padding:0;justify-content:center;}
  .responsive-outline-launcher svg{width:20px;height:20px;}
  .responsive-outline-launcher span{display:none;}
  .responsive-outline{top:auto;right:0;bottom:0;left:0;width:auto;max-height:min(72dvh,560px);border-width:1px 0 0;border-radius:20px 20px 0 0;padding-bottom:env(safe-area-inset-bottom);}
  .responsive-outline-overlay{background:rgba(20,22,22,.32);}
}

/* ============ 阅读模式 ============ */
body.reading-mode{
  background:var(--bg);
  overflow:auto;
}
body.reading-mode .app{
  display:block;
  height:auto;
  min-height:100vh;
}
body.reading-mode .sidebar,
body.reading-mode .toolbar,
body.reading-mode .statusbar,
body.reading-mode .doc-title-bar{display:none;}
body.reading-mode .main{
  display:block;
  background:transparent;
}
body.reading-mode .editor-wrap{
  padding:0;
  margin:0;
}
body.reading-mode .document-shell{
  max-width:780px;
  margin:60px auto 80px;
  background:var(--bg-editor);
  border:1px solid var(--line);
  border-radius:8px;
  box-shadow:var(--shadow);
  min-height:auto;
}
body.reading-mode .editor{
  max-width:none;
  margin:0;
  padding:50px 60px;
  background:transparent;
  border:none;
  border-radius:0;
  font-family:var(--serif);
  font-size:17px;
  line-height:1.85;
  color:var(--ink);
  box-shadow:none;
  min-height:50vh;
}
body.reading-mode .editor:focus{outline:none;}
body.reading-mode .editor h1{
  font-size:1.9em;
  margin:1.2em 0 .6em;
  text-align:center;
  letter-spacing:1px;
}
body.reading-mode .editor h2{font-size:1.5em;margin:1.1em 0 .5em;}
body.reading-mode .editor h3{font-size:1.2em;margin:1em 0 .4em;}
body.reading-mode .editor p{margin:.7em 0;text-indent:0;}
body.reading-mode .editor blockquote{
  margin:1em 0;
  padding:.6em 1.2em;
  border-left:3px solid var(--accent-soft);
  background:var(--highlight);
  color:var(--ink-soft);
  border-radius:0 6px 6px 0;
  font-style:italic;
}
body.reading-mode .editor .img-container{
  display:block;
  margin:1.2em auto;
  text-align:center;
}
body.reading-mode .editor .img-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:10px;
  margin:1.2em 0;
}
body.reading-mode .editor .img-grid[data-count="3"]{grid-template-columns:repeat(3,minmax(0,1fr));}
body.reading-mode .editor .img-grid .img-container{
  width:100%!important;
  height:auto!important;
  margin:0;
}
body.reading-mode .editor .img-container img{
  width:100%;
  height:100%;
  object-fit:contain;
  border-radius:4px;
  box-shadow:0 2px 12px rgba(40,35,25,.1);
  background:transparent;
}
body.reading-mode .editor .img-grid .img-container img{height:auto;}
body.reading-mode .rs-handle,
body.reading-mode .img-size-label{display:none!important;}
body.reading-mode .editor pre{
  background:var(--code-bg);
  border:1px solid var(--code-border);
  border-radius:6px;
  padding:14px 16px;
  font-size:13.5px;
  overflow-x:auto;
}
body.reading-mode .editor code{
  background:var(--code-bg);
  padding:1px 5px;
  border-radius:3px;
  font-family:var(--mono);
  font-size:.9em;
}
body.reading-mode .editor table{
  border-collapse:collapse;
  width:100%;
  margin:1em 0;
}
body.reading-mode .editor th,
body.reading-mode .editor td{
  border:1px solid var(--line);
  padding:8px 12px;
}
body.reading-mode .editor th{background:var(--table-head);}
body.reading-mode .editor hr{
  border:none;
  border-top:1px solid var(--line);
  margin:1.6em 0;
}

.reading-exit{
  position:fixed;
  top:20px;
  right:20px;
  z-index:999;
  height:36px;
  padding:0 16px;
  background:var(--bg-editor);
  color:var(--ink-soft);
  border:1px solid var(--line);
  border-radius:18px;
  cursor:pointer;
  font-family:var(--sans);
  font-size:12.5px;
  box-shadow:var(--shadow);
  transition:all .15s;
  display:flex;
  align-items:center;
  gap:5px;
}
.reading-exit:hover{
  background:var(--accent);
  color:#fff;
  border-color:var(--accent);
}
.reading-exit svg{width:14px;height:14px;display:block;}
.reading-exit[hidden]{display:none;}

@media (max-width:760px){
  .editor .img-grid,
  .editor .img-grid[data-count="3"],
  body.reading-mode .editor .img-grid,
  body.reading-mode .editor .img-grid[data-count="3"]{grid-template-columns:repeat(2,minmax(0,1fr));}
  body.reading-mode .editor{
    margin:20px 12px;
    padding:30px 22px;
    font-size:16px;
  }
}

/* ============ 分享公开页 ============ */
body.share-page{
  background:var(--bg);
  overflow:visible;
  /* 全局禁止 UI 元素选中，内容区单独开启 */
  user-select:none;
}
/* 恢复核心内容的可选性：仅标题和正文允许复制 */
body.share-page .share-paper-title,
body.share-page .share-reader,
body.share-page .share-editor{
  user-select:text;
}
html:has(body.share-page){overflow-x:clip;}
.share-progress{
  position:fixed;
  top:0;left:0;
  height:5px;
  background:var(--accent);
  width:0;
  z-index:100;
  transition:width .1s, opacity .3s;
  opacity:0;
}
/* 物理模型：纸张是一块有边界的实体，居中放在视口这张"桌面"上。
   纸张左右两侧露出的空间即"安全区"，任何外围元素（如左侧大纲）只能待在安全区里，
   无权侵入纸张。这里把纸张物理宽度与安全区呼吸间距定义成变量，
   大纲的宽度直接由安全区算出（见 .share-toc 的 max-width）。
   单点改值即可同步容器与大纲，避免两处各写死一个再也对不齐的数字。 */
body.share-page{
  --share-paper-w:820px;
  --share-toc-safe-gap:32px;
}
.share-container{
  max-width:var(--share-paper-w);
  margin:0 auto;
  /* 与旧版分享页对齐，让纸张在顶栏下更早出现。 */
  padding:60px 24px 120px;
}
.share-loading-card,.share-error-card{
  text-align:center;
  padding:80px 20px;
  color:var(--ink-faint);
  font-size:14px;
}
.share-error-card .share-error-icon{
  font-size:48px;
  color:var(--ink-faint);
  margin-bottom:16px;
}
.share-error-card .share-error-icon svg{width:48px;height:48px;display:block;}
.share-error-card .share-error-msg{
  font-size:16px;
  color:var(--ink-soft);
  margin-bottom:20px;
}
.share-error-link{
  color:var(--accent);
  text-decoration:none;
  font-size:13px;
  border:1px solid var(--line);
  padding:8px 18px;
  border-radius:6px;
  display:inline-block;
}
.share-error-link:hover{background:var(--bg-hover);}

/* 密码卡片 */
.share-pwd-card{
  box-sizing:border-box;
  width:min(100%,380px);
  margin:0;
  padding:36px 32px 32px;
  background:var(--bg-editor);
  border:1px solid var(--line);
  border-radius:10px;
  box-shadow:var(--shadow);
  text-align:center;
}
.share-access-gate{
  box-sizing:border-box;
  min-height:calc(100dvh - 56px);
  display:flex;
  align-items:center;
  justify-content:center;
  padding:28px 24px 72px;
}
.share-pwd-icon{
  width:52px;height:52px;
  margin:0 auto 16px;
  display:grid;place-items:center;
  border:1px solid var(--line);
  border-radius:16px;
  color:var(--accent);
  background:var(--bg);
}
.share-pwd-icon svg{width:26px;height:26px;}
.share-pwd-title{
  font-family:var(--sans);
  font-size:20px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:8px;
  letter-spacing:1px;
}
.share-pwd-desc{
  font-size:13px;
  color:var(--ink-soft);
  margin-bottom:24px;
}
.share-pwd-card .share-pin{justify-content:center;gap:10px;}
.share-pwd-card .pin-input{width:44px;height:50px;font-size:21px;border-radius:9px;}
.share-pwd-input{
  width:100%;
  height:40px;
  padding:0 14px;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:6px;
  color:var(--ink);
  font-family:var(--sans);
  font-size:14px;
  outline:none;
  margin-bottom:12px;
  text-align:center;
  letter-spacing:2px;
}
.share-pwd-input:focus{border-color:var(--accent-soft);}
.share-pwd-btn{
  width:100%;
  height:40px;
  background:var(--accent);
  color:#fff;
  border:none;
  border-radius:6px;
  cursor:pointer;
  font-family:var(--sans);
  font-size:14px;
  font-weight:500;
  transition:opacity .15s;
}
.share-pwd-btn:hover{opacity:.92;}
.share-pwd-error{
  margin-top:12px;
  font-size:12.5px;
  color:#c44;
  min-height:16px;
}

/* 纸张容器：把标题、信息、正文都放进一张白纸里 */
.share-paper{
  background:var(--bg-editor);
  border:1px solid var(--line-soft);
  border-radius:10px;
  box-shadow:0 1px 3px rgba(32,41,46,.06), 0 12px 36px rgba(32,41,46,.08);
  padding:48px 56px 56px;
  overflow:hidden;
}
.share-paper-head{
  text-align:left;
  padding-bottom:20px;
  margin-bottom:28px;
  border-bottom:1px solid var(--line-soft);
}
.share-paper-title{
  font-family:var(--sans);
  font-size:30px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:2px;
  line-height:1.4;
  margin:0 0 12px;
  /* 收起（截断）状态：正常换行，让每一行尽量排满，省略号落在第二行末尾；
     不用 keep-all，否则中文只在空格/标点换行，第二行会因短词被提前截断 */
  word-break:normal;
  overflow-wrap:anywhere;
  /* 长标题默认最多 2 行，加 .expanded 后展开完整 */
  display:-webkit-box;
  -webkit-box-orient:vertical;
  -webkit-line-clamp:2;
  overflow:hidden;
}
.share-paper-title.expanded{
  -webkit-line-clamp:unset;
  display:block;
  /* 仅展开时：智能平衡换行 + 避免单字独占一行 */
  text-wrap:balance;
  word-break:keep-all;
}
.share-paper-title.collapsible{cursor:pointer;}
.share-paper-title-toggle{
  display:inline-block;
  margin:0 0 12px;
  padding:0;
  border:0;
  background:transparent;
  color:var(--ink);
  opacity:.42;               /* 刻意弱化，不抢标题本身 */
  font-family:var(--sans);
  font-size:13px;
  font-weight:400;
  line-height:1;
  cursor:pointer;
  transition:opacity .15s ease;
  user-select:none;
}
.share-paper-title-toggle:hover{opacity:.75;text-decoration:underline;text-underline-offset:3px;}
.share-paper-info{
  display:flex;
  align-items:center;
  justify-content:flex-start;
  gap:14px;
  font-size:12px;
  color:var(--ink-faint);
  flex-wrap:wrap;
}
.share-edit-btn{
  appearance:none;
  height:26px;
  padding:0 14px;
  border:1px solid var(--accent);
  background:transparent;
  color:var(--accent);
  border-radius:13px;
  font-family:var(--sans);
  font-size:12px;
  font-weight:500;
  cursor:pointer;
  transition:background .15s, color .15s;
  user-select:none;
}
.share-edit-btn:hover{background:var(--accent);color:var(--primary-ink);}
.share-badge{
  padding:2px 10px;
  border-radius:10px;
  font-size:11px;
  font-weight:500;
  letter-spacing:.5px;
  user-select:none;
}
.share-badge.view{
  background:var(--bg-hover);
  color:var(--ink-soft);
}
.share-badge.edit{
  background:var(--accent);
  color:#fff;
}
.share-date{font-size:11.5px;}
/* 作者昵称：字重 500（不轻不重），与标题统一无衬线，颜色比日期略深一档 */
.share-author{
  font-family:var(--sans);
  font-size:13px;
  font-weight:500;
  color:var(--ink-soft);
  letter-spacing:.3px;
}

/* 只读分享页里的待办勾选：不显示手型，hover 不变色 */
.share-reader .todo-check{cursor:default;}
.share-reader .todo-check:hover{border-color:var(--ink-faint);}

/* 阅读区 / 编辑区：字体与编辑器正文一致（无衬线），不再强制衬线 */
.share-reader,.share-editor{
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  min-height:40vh;
  outline:none;
  overflow-wrap:anywhere;
  word-break:break-word;
  /* 中文正文两端对齐 + 标点压缩：根治左对齐右锯齿 & 旧式两端对齐字距不均。
     - text-justify:inter-character 只在字符间分配拉伸空间，不拉标点，避免"宽窄不一"；
     - text-spacing-trim:space-all 压缩全角标点占位（2024+ 浏览器支持，不支持的降级为普通两端对齐，不报错）；
     - text-align-last:left 段末最后一行不拉伸；
     - text-wrap:pretty 优化孤字，避免末行单字独占。
     编辑器（.editor）仍保持左对齐，避免输入时整行重排影响写作。 */
  text-align:justify;
  text-align-last:left;
  text-justify:inter-character;
  text-spacing-trim:space-all;
  text-wrap:pretty;
  /* 标题、引用、代码等块级元素覆盖回左对齐 */
}
.share-reader h1,.share-reader h2,.share-reader h3,
.share-reader blockquote,.share-reader pre,.share-reader table,.share-reader .img-container,
.share-reader .img-grid,.share-reader .link-card,
.share-editor h1,.share-editor h2,.share-editor h3,
.share-editor blockquote,.share-editor pre,.share-editor table,.share-editor .img-container,
.share-editor .img-grid,.share-editor .link-card{text-align:left;}
.share-editor:focus{outline:none;}
/* Reading copy should not make a short final line look like a broken sentence. */
.share-reader,.share-editor{
  word-break:normal;
  text-align:left;
  text-align-last:auto;
  text-justify:auto;
}
.share-reader h1,.share-editor h1{
  font-size:1.9em;
  font-weight:700;
  margin:1.2em 0 .6em;
  text-align:center;
  letter-spacing:1px;
}
.share-reader h2,.share-editor h2{font-size:1.5em;font-weight:700;margin:1.1em 0 .5em;}
.share-reader h3,.share-editor h3{font-size:1.2em;font-weight:700;margin:1em 0 .4em;}
.share-reader h4,.share-editor h4{font-weight:600;}
/* 分享页标题内 strong 继承标题字重，避免同层级标题因手动加粗而粗细不一 */
.share-reader h1 strong,.share-reader h1 b,
.share-reader h2 strong,.share-reader h2 b,
.share-reader h3 strong,.share-reader h3 b,
.share-reader h4 strong,.share-reader h4 b,
.share-reader h5 strong,.share-reader h5 b,
.share-reader h6 strong,.share-reader h6 b,
.share-editor h1 strong,.share-editor h1 b,
.share-editor h2 strong,.share-editor h2 b,
.share-editor h3 strong,.share-editor h3 b,
.share-editor h4 strong,.share-editor h4 b,
.share-editor h5 strong,.share-editor h5 b,
.share-editor h6 strong,.share-editor h6 b{font-weight:inherit;}
.share-reader p,.share-editor p{
  margin:.7em 0;
  /* Progressive enhancement: avoids extremely short final lines. */
  text-wrap:pretty;
}
.share-reader blockquote,.share-editor blockquote{
  margin:1em 0;
  padding:.6em 1.2em;
  border-left:3px solid var(--accent-soft);
  background:var(--highlight);
  color:var(--ink-soft);
  border-radius:0 6px 6px 0;
  font-style:italic;
}
.share-reader ul,.share-reader ol,.share-editor ul,.share-editor ol{
  margin:.7em 0;
  padding-left:1.8em;
}
/* Lists and editor-generated manual-number paragraphs keep natural spacing. */
.share-reader li,.share-reader .share-manual-list-item,.share-reader .todo-item,
.share-editor li,.share-editor .share-manual-list-item,.share-editor .todo-item{
  margin:.3em 0;
  text-align:start;
  text-align-last:auto;
  text-justify:auto;
  text-wrap:pretty;
}
.share-reader hr,.share-editor hr{
  border:none;
  border-top:1px solid var(--line);
  margin:1.8em 0;
}
.share-reader pre,.share-editor pre{
  background:var(--code-bg);
  border:1px solid var(--code-border);
  border-radius:6px;
  padding:14px 16px;
  overflow-x:auto;
  font-family:var(--mono);
  font-size:13.5px;
}
.share-reader code,.share-editor code{
  background:var(--code-bg);
  padding:1px 5px;
  border-radius:3px;
  font-family:var(--mono);
  font-size:.9em;
}
.share-reader kbd,.share-editor kbd{
  display:inline-block;
  padding:1px 6px;
  border:1px solid var(--code-border);
  border-bottom-width:2px;
  border-radius:4px;
  background:var(--code-bg);
  color:var(--ink);
  font-family:var(--mono);
  font-size:.85em;
  font-weight:600;
  line-height:1.4;
  white-space:nowrap;
  box-shadow:0 1px 0 rgba(0,0,0,.06);
  vertical-align:baseline;
}
.share-reader table,.share-editor table{
  border-collapse:collapse;
  width:100%;
  margin:1em 0;
}
/* 分享页宽表格：包一层可横向滚动的容器，超宽时手机右拉查看（JS 渲染时缠绕） */
.share-reader .table-scroll,.share-editor .table-scroll{
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  max-width:100%;
  margin:1em 0;
}
.share-reader .table-scroll table,.share-editor .table-scroll table{
  margin:0;
  width:max-content;
  min-width:100%;
}
.share-reader th,.share-reader td,.share-editor th,.share-editor td{
  border:1px solid var(--line);
  padding:8px 12px;
}
.share-reader th,.share-editor th{background:var(--table-head);}
.share-reader .img-container,.share-editor .img-container{
  display:block;
  position:relative;
  margin:1.2em auto;
  max-width:100%;
}
.share-reader .img-grid,.share-editor .img-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:10px;
  margin:1.2em 0;
  width:100%;
}
.share-reader .img-grid[data-count="3"],.share-editor .img-grid[data-count="3"]{grid-template-columns:repeat(3,minmax(0,1fr));}
.share-reader .img-grid .img-container,.share-editor .img-grid .img-container{
  display:block;
  width:100%!important;
  height:auto!important;
  margin:0;
}
.share-reader .img-container img,.share-editor .img-container img{
  display:block;
  width:100%;
  height:100%;
  object-fit:contain;
  border-radius:4px;
  box-shadow:0 2px 12px rgba(40,35,25,.1);
}
.share-reader .img-grid .img-container img,.share-editor .img-grid .img-container img{height:auto;}
.share-reader .rs-handle,.share-reader .img-size-label,
.share-editor .rs-handle,.share-editor .img-size-label{display:none!important;}
.editor .img-container img,
.share-reader img,
.share-editor img{cursor:zoom-in;}

.share-footer{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:14px;
  margin-top:60px;
  padding-top:24px;
  border-top:1px solid var(--line-soft);
  color:var(--ink-faint);
  font-size:12px;
  font-family:var(--serif);
  letter-spacing:2px;
}

/* ============ 图片大图预览 ============ */
body.image-preview-open{overflow:hidden!important;}
.image-preview-overlay{
  position:fixed;
  inset:0;
  z-index:12000;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(8,11,13,.9);
  backdrop-filter:blur(8px);
  animation:imagePreviewFadeIn .16s ease;
}
.image-preview-overlay[hidden]{display:none;}
/* 左右切换箭头：固定在屏幕两侧中部 */
.image-preview-nav{
  position:fixed;
  top:50%;
  transform:translateY(-50%);
  z-index:3;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  padding:0;
  border:1px solid rgba(255,255,255,.16);
  border-radius:50%;
  background:rgba(29,34,37,.6);
  color:rgba(255,255,255,.85);
  cursor:pointer;
  transition:background .12s, color .12s, opacity .12s;
  backdrop-filter:blur(4px);
}
.image-preview-nav:hover{background:rgba(255,255,255,.16);color:#fff;}
.image-preview-nav[hidden]{display:none;}
.image-preview-nav svg{width:22px;height:22px;display:block;}
.image-preview-prev{left:max(16px,env(safe-area-inset-left));}
.image-preview-next{right:max(16px,env(safe-area-inset-right));}
/* 图片计数：底部居中（1 / 3） */
.image-preview-counter{
  position:fixed;
  bottom:max(20px,env(safe-area-inset-bottom));
  left:50%;
  transform:translateX(-50%);
  z-index:3;
  padding:4px 12px;
  border:1px solid rgba(255,255,255,.14);
  border-radius:999px;
  background:rgba(29,34,37,.7);
  color:rgba(255,255,255,.88);
  font-family:var(--sans);
  font-size:12px;
  font-variant-numeric:tabular-nums;
  letter-spacing:.04em;
  backdrop-filter:blur(4px);
  pointer-events:none;
}
.image-preview-counter[hidden]{display:none;}
@keyframes imagePreviewFadeIn{from{opacity:0;}to{opacity:1;}}
.image-preview-stage{
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
  touch-action:none;
}
.image-preview-image{
  display:block;
  max-width:calc(100vw - 64px);
  max-height:calc(100vh - 112px);
  width:auto;
  height:auto;
  object-fit:contain;
  user-select:none;
  touch-action:none;
  cursor:zoom-in;
  will-change:transform;
  transition:transform .16s ease;
  filter:drop-shadow(0 18px 48px rgba(0,0,0,.34));
}
/* natural 模式：大图填满网页但上下左右留 8% 空隙，超出可拖动查看 */
.image-preview-image.natural{
  max-width:84vw;
  max-height:84vh;
  cursor:grab;
}
.image-preview-overlay.is-zoomed .image-preview-image{cursor:grab;}
.image-preview-overlay.is-dragging .image-preview-image{
  cursor:grabbing;
  transition:none;
}
.image-preview-toolbar{
  position:fixed;
  top:max(18px,env(safe-area-inset-top));
  right:max(18px,env(safe-area-inset-right));
  z-index:2;
  display:flex;
  align-items:center;
  gap:4px;
  padding:5px;
  border:1px solid rgba(255,255,255,.14);
  border-radius:10px;
  background:rgba(29,34,37,.82);
  box-shadow:0 8px 30px rgba(0,0,0,.28);
  color:#fff;
}
.image-preview-tool{
  appearance:none;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  padding:0;
  border:0;
  border-radius:7px;
  background:transparent;
  color:rgba(255,255,255,.88);
  cursor:pointer;
}
.image-preview-tool:hover,
.image-preview-tool:focus-visible{
  outline:none;
  background:rgba(255,255,255,.12);
  color:#fff;
}
.image-preview-tool svg{width:19px;height:19px;display:block;}
.image-preview-close{
  margin-left:3px;
  border-left:1px solid rgba(255,255,255,.13);
  border-radius:0 7px 7px 0;
}
.image-preview-scale{
  width:48px;
  color:rgba(255,255,255,.72);
  font-family:var(--sans);
  font-size:12px;
  font-variant-numeric:tabular-nums;
  text-align:center;
}
.image-preview-error{
  color:rgba(255,255,255,.76);
  font-family:var(--sans);
  font-size:14px;
}

@media(max-width:600px){
  .image-preview-toolbar{
    top:auto;
    right:50%;
    bottom:max(16px,env(safe-area-inset-bottom));
    transform:translateX(50%);
  }
  .image-preview-tool{width:44px;height:44px;}
  .image-preview-image{
    max-width:calc(100vw - 24px);
    max-height:calc(100vh - 104px);
  }
  .image-preview-image.natural{
    max-width:90vw;
    max-height:80vh;
  }
  .image-preview-counter{
    top:max(16px,env(safe-area-inset-top));
    bottom:auto;
  }
}
.share-footer-line{opacity:.7;user-select:none;}
.share-footer-brand{
  display:inline-flex;align-items:center;justify-content:center;
  height:24px;
  /* 视觉居中：补偿 logo 文字基线偏移导致的右侧空隙 */
  margin-left:-8px;
  opacity:.55;
  transition:opacity .15s;
}
.share-footer-brand:hover{opacity:1;}
.share-footer-brand .share-brand-logo{height:24px;width:auto;}

/* 保存状态条 */
.share-save-bar{
  position:fixed;
  bottom:24px;
  left:50%;
  transform:translateX(-50%);
  background:var(--bg-editor);
  border:1px solid var(--line);
  border-radius:18px;
  padding:6px 16px;
  font-size:12px;
  color:var(--ink-soft);
  box-shadow:var(--shadow);
  display:flex;
  align-items:center;
  gap:7px;
  z-index:50;
  transition:opacity .3s;
}
/* 修复 bug：display:flex 会覆盖 [hidden] 的 display:none，导致 saveBar 一直显示 */
.share-save-bar[hidden]{display:none!important;}
.share-save-bar.fade-out{opacity:0;pointer-events:none;}
.share-save-dot{
  width:8px;height:8px;
  border-radius:50%;
  background:var(--accent-soft);
  transition:background .2s;
}
.share-save-dot.editing{background:#e8a838;}

/* 访客胶囊（嵌入顶部工具栏） */
.share-visitors{
  position:relative;
  font-family:var(--sans);
  user-select:none;
  flex:0 0 auto; /* 不被 topbar 压缩，保证"访问/在线"文字显示全 */
}
.sv-num{
  font-weight:700;
  font-size:13px;
  color:#2b7de9; /* 浅蓝，柔和不突兀 */
}
[data-theme="dark"] .sv-num{color:#57a6ff;}
.sv-trigger{
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:30px;
  padding:0 12px 0 10px;
  border:1px solid var(--line);
  background:var(--bg-editor);
  color:var(--ink-soft);
  border-radius:15px;
  font-family:var(--sans);
  font-size:12px;
  font-weight:500;
  cursor:pointer;
  box-shadow:0 2px 8px rgba(0,0,0,.08);
  transition:background .12s, color .12s, border-color .12s;
  user-select:none;
}
.sv-trigger:hover{background:var(--bg-hover);color:var(--ink);}
.sv-trigger.active{border-color:var(--accent);color:var(--accent);}
.sv-dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--ink-faint);
  transition:background .2s, box-shadow .2s;
}
.sv-dot.online{
  background:#22c55e;
  box-shadow:0 0 0 3px rgba(34,197,94,.18);
}
.sv-text{white-space:nowrap;}
.sv-chevron{
  width:12px;height:12px;
  fill:none;stroke:currentColor;stroke-width:1.6;
  stroke-linecap:round;stroke-linejoin:round;
  transition:transform .15s;
}
.sv-trigger.active .sv-chevron{transform:rotate(180deg);}

.sv-list{
  position:absolute;
  top:36px;right:0;
  min-width:220px;
  max-width:280px;
  background:var(--bg-editor);
  border:1px solid var(--line);
  border-radius:10px;
  box-shadow:0 8px 28px rgba(0,0,0,.12);
  padding:6px;
  opacity:0;
  transform:translateY(-4px);
  pointer-events:none;
  transition:opacity .15s, transform .15s;
}
.sv-list.open{
  opacity:1;
  transform:translateY(0);
  pointer-events:auto;
}
.sv-list-head{
  font-size:11px;
  color:var(--ink-faint);
  letter-spacing:1px;
  padding:6px 8px 4px;
  border-bottom:1px solid var(--line-soft);
  margin-bottom:4px;
}
.sv-item{
  display:flex;
  align-items:center;
  gap:10px;
  padding:6px 8px;
  border-radius:6px;
}
.sv-item:hover{background:var(--bg-hover);}
.sv-item.me{background:var(--highlight);}
.sv-avatar{
  flex:none;
  width:28px;height:28px;
  border-radius:50%;
  background:var(--accent-soft);
  color:var(--accent);
  font-size:12px;
  font-weight:600;
  display:flex;align-items:center;justify-content:center;
}
.sv-item.me .sv-avatar{background:var(--accent);color:#fff;}
.sv-info{display:flex;flex-direction:column;gap:2px;min-width:0;flex:1;}
.sv-name{
  font-size:13px;
  color:var(--ink);
  font-weight:500;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
/* 游客灰色、注册用户亮色（回来登录就亮起名字） */
.sv-name.guest{color:var(--ink-faint);font-weight:400;}
.sv-name.registered{color:var(--ink);font-weight:600;}
.sv-item.guest{opacity:.85;}
.sv-item.guest .sv-avatar{
  background:var(--bg-hover);
  color:var(--ink-faint);
}
.sv-avatar.registered{
  background:var(--accent-soft);
  color:var(--accent);
}
.sv-meta{
  font-size:11.5px;
  color:var(--ink-faint);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.sv-empty{
  padding:14px 8px;
  text-align:center;
  color:var(--ink-faint);
  font-size:12.5px;
}

/* 左侧悬浮目录（视觉风格抄编辑器 .doc-outline）
   物理约束：大纲宽度不得超过"纸张左安全区"的可用宽度。
   安全区 = 视口左缘到纸张左缘的距离 - 呼吸间距 = (100vw - 纸张宽)/2 - 安全间距。
   => max-width 直接由安全区算出，因此无论窗口多窄，大纲都会被压窄而非侵入纸张，
      从结构上杜绝重叠。安全区实在窄到不可读时，由下方断点回落到底部章节坞。 */
.share-toc{
  position:fixed;
  top:96px;
  left:24px;
  width:200px;
  max-width:calc((100vw - var(--share-paper-w)) / 2 - var(--share-toc-safe-gap));
  max-height:calc(100vh - 200px);
  overflow-y:auto;
  padding:0 8px;
  font-size:12.5px;
  z-index:40;
}
.share-toc[hidden]{display:none;}
.share-toc::-webkit-scrollbar{width:4px;}
.share-toc::-webkit-scrollbar-thumb{background:var(--line);border-radius:2px;}
.share-toc-title{
  font-size:11px;
  color:var(--ink-faint);
  letter-spacing:1px;
  margin-bottom:8px;
}
.share-toc-list{list-style:none;margin:0;padding:0;}
.share-toc-list li{margin:1px 0;}
.share-toc-list a{
  display:block;
  padding:4px 8px;
  color:var(--ink-soft);
  text-decoration:none;
  border-radius:4px;
  font-size:12.5px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  transition:all .12s;
  border-left:2px solid transparent;
}
.share-toc-list a:hover{background:var(--bg-hover);color:var(--ink);}
.share-toc-list a.active{
  color:var(--accent);
  font-weight:500;
  background:var(--highlight);
  border-left-color:var(--accent);
}
.share-toc::-webkit-scrollbar{width:5px;}
.share-toc::-webkit-scrollbar-thumb{background:var(--line);border-radius:3px;}

/* 断点只决定"左侧大纲还有没有用"，不再负责防重叠（防重叠已由 .share-toc 的
   max-width 依据安全区物理约束保证，任何宽度都不可能侵入纸张）。
   当纸张左安全区窄到容纳不下一个可读宽度的大纲（约 178px）时，左侧大纲太挤，
   回落到移动端底部章节坞。安全区 = (视口宽 - 820)/2 - 32，
   => (视口宽 - 820)/2 - 32 < 178 => 视口宽 < 1240 时回落。 */
@media (max-width:1240px){
  .share-topbar{position:relative;}
  .share-toc{display:none;}
  .share-toc-toggle,.share-progress{display:none!important;}
  .share-toc-overlay{position:fixed;inset:0;z-index:120;background:rgba(20,22,22,.42);user-select:none;}
  .share-toc-overlay[hidden],.share-toc-sheet[hidden]{display:none;}
  .share-reading-dock{
    position:fixed;z-index:95;left:50%;bottom:calc(12px + env(safe-area-inset-bottom));transform:translateX(-50%);
    box-sizing:border-box;width:min(360px,calc(100vw - 32px));height:44px;padding:0 14px;
    display:block;min-width:0;
    border:1px solid color-mix(in srgb,var(--line) 74%,transparent);border-radius:22px;
    background:color-mix(in srgb,var(--bg-editor) 88%,transparent);color:var(--ink-soft);
    box-shadow:0 4px 14px rgba(30,25,18,.11);backdrop-filter:blur(18px) saturate(1.04);-webkit-backdrop-filter:blur(18px) saturate(1.04);
    user-select:none;
    overflow:hidden;
  }
  .share-reading-dock[hidden]{display:none!important;}
  .share-dock-progress{
    position:absolute;left:0;right:0;bottom:0;height:2px;background:color-mix(in srgb,var(--line) 70%,transparent);
  }
  .share-dock-progress-bar{
    height:100%;width:0;background:var(--accent);transition:width .1s;
  }
  .share-chapter-dock{
    position:static;width:100%;min-width:0;height:44px;padding:0;
    display:inline-flex;align-items:center;gap:8px;
    border:0;border-radius:0;background:transparent;color:var(--ink-soft);
    box-shadow:none;font-family:var(--sans);cursor:pointer;
    user-select:none;
  }
  .share-chapter-dock:active{transform:translateY(1px);}
  .share-chapter-dock svg{width:17px;height:17px;flex:0 0 auto;color:var(--accent);}
  .share-chapter-dock-label{min-width:0;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px;font-weight:600;text-align:left;}
  .share-toc-sheet{
    position:fixed;z-index:121;top:auto;right:0;bottom:0;left:0;
    width:auto;max-height:min(72dvh,560px);
    display:flex;flex-direction:column;overflow:hidden;
    background:var(--bg-editor);border:1px solid var(--line);border-width:1px 0 0;border-radius:20px 20px 0 0;box-shadow:0 -12px 36px rgba(30,25,18,.16);padding-bottom:env(safe-area-inset-bottom);
    user-select:none;
  }
  .share-toc-sheet-head{height:54px;padding:0 12px 0 18px;border-bottom:1px solid var(--line-soft);display:flex;align-items:center;justify-content:space-between;flex:0 0 auto;}
  .share-toc-sheet-head strong{font-family:var(--sans);font-size:15px;color:var(--ink);}
  .share-toc-progress{height:2px;background:var(--line-soft,var(--line));flex:0 0 auto;position:relative;}
  .share-toc-progress-bar{height:100%;background:var(--accent);width:0;transition:width .1s;}
  .share-toc-sheet-close{width:40px;height:40px;border:0;border-radius:10px;background:transparent;color:var(--ink-soft);display:grid;place-items:center;cursor:pointer;user-select:none;}
  .share-toc-sheet-close:hover{background:var(--bg-hover);color:var(--ink);}
  .share-toc-sheet-close svg{width:20px;height:20px;}
  .share-toc-sheet-list{list-style:none;margin:0;padding:10px 10px 18px;overflow:auto;}
  .share-toc-sheet-list li{margin:1px 0;}
  .share-toc-sheet-list button{width:100%;min-height:42px;padding:9px 10px;border:0;border-left:2px solid transparent;border-radius:6px;background:transparent;color:var(--ink-soft);font-family:var(--sans);font-size:14px;line-height:1.45;text-align:left;cursor:pointer;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;user-select:none;}
  .share-toc-sheet-list .level-h2 button{padding-left:22px;}
  .share-toc-sheet-list .level-h3 button{padding-left:34px;}
  .share-toc-sheet-list button:hover{background:var(--bg-hover);color:var(--ink);}
  .share-toc-sheet-list button.active{background:var(--highlight);border-left-color:var(--accent);color:var(--accent);font-weight:600;}
}
@media (max-width:760px){
  /* 深色模式：章节药丸与底部面板用更亮的表面色+更明显边框+更深阴影，与页面拉开层级，
     避免沿页面底色“融成一坨”看不清 */
  [data-theme="dark"] .share-reading-dock{
    background:rgba(47,54,53,.94);
    border-color:rgba(96,108,105,.6);
    box-shadow:0 6px 24px rgba(0,0,0,.55);
  }
  [data-theme="dark"] .share-reading-dock .share-chapter-dock-label{color:#ecebe4;}
  [data-theme="dark"] .share-toc-sheet{
    background:#2b312f;
    border-top-color:#414a48;
    box-shadow:0 -18px 46px rgba(0,0,0,.6);
  }
  [data-theme="dark"] .share-toc-sheet-head{border-bottom-color:#343c3a;}
  [data-theme="dark"] .share-toc-sheet-list button{color:#cbd1ce;}
  [data-theme="dark"] .share-toc-sheet-list button:hover{background:#343b39;color:#f0efe9;}
  [data-theme="dark"] .share-toc-sheet-list button.active{background:#2e3c35;border-left-color:var(--accent);color:#d3e2d8;}
  [data-theme="dark"] .share-toc-sheet-close{color:#cbd1ce;}
  [data-theme="dark"] .share-toc-sheet-close:hover{background:#343b39;color:#f0efe9;}
}
@media (max-width:760px){
  .share-container{padding:48px 20px 84px;}
  .share-container.share-access-gate{min-height:calc(100dvh - 52px);padding:20px 18px 48px;}
  .share-pwd-card{padding:30px 20px 26px;border-radius:14px;}
  .share-paper{padding:28px 18px 36px;border:0;border-radius:0;box-shadow:none;}
  .share-paper-head{padding-bottom:16px;margin-bottom:20px;}
  .share-paper-title{font-size:24px;letter-spacing:1px;}
  /* 正文两端对齐 + 标点压缩（基础规则已统一），移动端只保留字号/行高；
     容器左右留白 20px + 纸张 18px = 每侧 38px，正文有呼吸空间 */
  .share-reader,.share-editor{font-size:16px;line-height:1.85;}
  .share-topbar{padding:10px 12px;padding-top:calc(10px + env(safe-area-inset-top));}
  .share-brand-mark .share-brand-logo{height:30px;}
  .share-theme-toggle{width:32px;height:32px;font-size:14px;}
  .share-theme-toggle svg{width:15px;height:15px;}
  /* 移动端登录入口缩成图标按钮，省横向空间 */
  .share-login-btn{height:32px;padding:0 10px;font-size:12px;gap:4px;}
  .share-login-btn svg{width:15px;height:15px;}
  /* 极窄屏隐藏文字仅留图标，保证主题切换与登录按钮都不被挤掉 */
  @media (max-width:380px){
    .share-login-btn{padding:0 8px;}
    .share-login-btn .share-login-label{display:none;}
  }
  .sv-trigger{height:28px;padding:0 10px 0 8px;font-size:11.5px;}
  .sv-list{min-width:200px;max-width:240px;}
  /* 访问/在线文字要显示全，不省略（用户确认空间足够） */
}


/* ============ AI tools ============ */
.ai-toolbar-btn,
.ai-fm-btn{
  font-weight:700;
  color:var(--accent);
}
.ai-modal{
  width:min(760px,94vw);
}
.ai-modal-panel{
  display:flex;
  flex-direction:column;
  gap:14px;
}
.ai-note{
  color:var(--ink-soft);
  font-size:13px;
  line-height:1.6;
}
.ai-preset-row{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
/* 自定义预设区（按账号绑定） */
.ai-preset-section{
  display:flex;
  flex-direction:column;
  gap:8px;
  padding-top:6px;
  border-top:1px dashed var(--line);
}
.ai-preset-section-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  color:var(--ink-soft);
  font-size:12px;
}
.ai-preset-add{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:24px;
  height:24px;
  border:1px solid var(--line);
  background:var(--bg-panel);
  color:var(--ink-soft);
  border-radius:6px;
  cursor:pointer;
}
.ai-preset-add:hover{background:var(--highlight);color:var(--ink);}
.ai-preset-add svg{width:14px;height:14px;}
.ai-preset-custom-row{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.ai-preset-custom{
  display:inline-flex;
  align-items:center;
  gap:4px;
  border:1px solid var(--line);
  background:var(--bg-panel);
  color:var(--ink);
  border-radius:6px;
  padding:4px 6px 4px 10px;
  cursor:pointer;
  font-family:var(--sans);
  font-size:13px;
}
.ai-preset-custom:hover{background:var(--highlight);}
.ai-preset-custom.active{
  background:var(--accent);
  border-color:var(--accent);
  color:#fff;
}
.ai-preset-label{max-width:140px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.ai-preset-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:20px;
  height:20px;
  border-radius:4px;
  color:inherit;
  opacity:.6;
  cursor:pointer;
}
.ai-preset-icon:hover{opacity:1;background:rgba(0,0,0,.08);}
.ai-preset-custom.active .ai-preset-icon:hover{background:rgba(255,255,255,.25);}
.ai-preset-icon svg{width:13px;height:13px;}
.ai-preset-empty{
  color:var(--ink-faint);
  font-size:12px;
}
.ai-preset,
.ai-action{
  border:1px solid var(--line);
  background:var(--bg-panel);
  color:var(--ink);
  border-radius:6px;
  min-height:32px;
  padding:0 12px;
  cursor:pointer;
  font-family:var(--sans);
  font-size:13px;
}
.ai-preset:hover,
.ai-action:hover{background:var(--highlight);}
.ai-preset.active,
.ai-action.primary{
  background:var(--accent);
  border-color:var(--accent);
  color:#fff;
}
.ai-preset[disabled],
.ai-action[disabled]{opacity:.55;cursor:not-allowed;}
.ai-field{
  display:flex;
  flex-direction:column;
  gap:8px;
}
.ai-field label{
  color:var(--ink-soft);
  font-size:12px;
}
.ai-input{
  width:100%;
  min-height:86px;
  resize:vertical;
  border:1px solid var(--line);
  background:var(--bg-panel);
  color:var(--ink);
  border-radius:6px;
  padding:10px 12px;
  font-family:var(--sans);
  font-size:14px;
  line-height:1.6;
}
.ai-preview{
  border:1px solid var(--line);
  background:var(--bg-panel);
  border-radius:8px;
  min-height:180px;
  max-height:42vh;
  overflow:auto;
  padding:16px;
  line-height:1.75;
}
.ai-preview.empty{
  color:var(--ink-faint);
  display:flex;
  align-items:center;
  justify-content:center;
}
.ai-warning{
  border:1px solid rgba(180,120,40,.35);
  background:rgba(180,120,40,.08);
  color:var(--ink);
  border-radius:6px;
  padding:10px 12px;
  font-size:13px;
  line-height:1.55;
}
.ai-actions{
  display:flex;
  justify-content:flex-end;
  gap:8px;
}
/* 新建预设按钮（虚线外框，跟在预设按钮行末尾） */
.ai-preset-add-btn{
  display:inline-flex;
  align-items:center;
  gap:4px;
  border:1px dashed var(--line);
  background:transparent;
  color:var(--ink-soft);
  border-radius:6px;
  min-height:32px;
  padding:0 12px;
  cursor:pointer;
  font-family:var(--sans);
  font-size:13px;
  white-space:nowrap;
  transition:background .12s,color .12s,border-color .12s;
}
.ai-preset-add-btn:hover{background:var(--highlight);color:var(--ink);border-color:var(--accent-soft);}
.ai-preset-add-btn svg{width:14px;height:14px;}
/* 预设提示词预览：点预设按钮后下方显示，再点展开完整（可复制不可改） */
.ai-preset-tip{
  border:1px solid var(--line-soft);
  background:var(--bg-panel);
  border-radius:6px;
  padding:10px 12px;
  font-size:12.5px;
  line-height:1.6;
  color:var(--ink-soft);
  cursor:pointer;
  user-select:none;
}
.ai-preset-tip-text{
  opacity:.55;
  max-height:4.8em;
  overflow:hidden;
  transition:opacity .15s,max-height .2s ease;
  white-space:pre-wrap;
}
.ai-preset-tip.expanded{cursor:default;}
.ai-preset-tip.expanded .ai-preset-tip-text{
  opacity:1;
  max-height:60vh;
  overflow:auto;
  user-select:text;
}
.ai-preset-tip-hint{
  font-size:11px;
  color:var(--ink-faint);
  margin-top:6px;
}
.ai-preset-tip.expanded .ai-preset-tip-hint{display:none;}
.ai-preset-tip-actions{
  display:none;
  margin-top:8px;
  gap:8px;
}
.ai-preset-tip.expanded .ai-preset-tip-actions{display:flex;}
.ai-preset-tip-btn{
  font-size:12px;
  font-family:var(--sans);
  color:var(--ink-soft);
  background:transparent;
  border:1px solid var(--line);
  border-radius:4px;
  padding:3px 10px;
  cursor:pointer;
  white-space:nowrap;
}
.ai-preset-tip-btn:hover{background:var(--highlight);color:var(--ink);}
.ai-preset-tip-btn.danger{color:#c44;}
.ai-preset-tip-btn.danger:hover{background:rgba(196,68,68,.1);}
/* 已隐藏的系统预设恢复区 */
.ai-preset-hidden-row{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
  padding-top:8px;
  border-top:1px dashed var(--line);
}
.ai-preset-hidden-label{
  font-size:12px;
  color:var(--ink-faint);
}
.ai-preset-restore{
  display:inline-flex;
  align-items:center;
  gap:4px;
  border:1px solid var(--line);
  background:var(--bg-panel);
  color:var(--ink-soft);
  border-radius:6px;
  padding:3px 10px;
  font-size:12.5px;
  cursor:pointer;
  white-space:nowrap;
}
.ai-preset-restore:hover{background:var(--highlight);color:var(--ink);}


/* ============ Table tools ============ */
.editor.table-col-resize-hover,
body.table-resizing{cursor:col-resize!important;}
body.table-resizing *{cursor:col-resize!important;user-select:none!important;}
.table-float-menu{
  position:fixed;
  z-index:9700;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:2px;
  max-width:calc(100vw - 16px);
  padding:4px;
  border:1px solid var(--line);
  border-radius:8px;
  background:var(--bg-panel);
  box-shadow:0 6px 20px rgba(40,35,25,.16);
  animation:fmIn .12s ease;
}
.table-float-menu[hidden]{display:none;}
.table-tool{
  appearance:none;
  border:none;
  background:transparent;
  color:var(--ink-soft);
  height:28px;
  min-width:30px;
  padding:0 8px;
  border-radius:5px;
  cursor:pointer;
  font-family:var(--sans);
  font-size:12px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.table-tool:disabled{opacity:.35;cursor:not-allowed;}
.table-tool:disabled:hover{background:transparent;color:var(--ink-soft);}
.table-tool:hover{background:var(--bg-hover);color:var(--ink);}
.table-tool.danger{color:#c44;}
.table-tool.danger:hover{background:rgba(192,57,43,.12);}
.table-tool-sep{width:1px;height:18px;background:var(--line);margin:0 3px;}
.table-color-tool{
  height:28px;
  display:inline-flex;
  align-items:center;
  gap:5px;
  padding:0 7px;
  border-radius:5px;
  color:var(--ink-soft);
  font-size:12px;
  cursor:pointer;
}
.table-color-tool:hover{background:var(--bg-hover);color:var(--ink);}
.table-color-tool input{
  width:18px;
  height:18px;
  padding:0;
  border:1px solid var(--line);
  border-radius:4px;
  background:transparent;
  cursor:pointer;
}
.table-resize-layer{
  position:fixed;
  inset:0;
  z-index:9600;
  pointer-events:none;
}
.table-resize-layer[hidden]{display:none;}
.table-col-resizer{
  position:fixed;
  width:14px;
  min-width:14px;
  padding:0;
  border:0;
  background:transparent;
  cursor:col-resize;
  pointer-events:auto;
  touch-action:none;
}
.table-col-resizer::before{
  content:"";
  position:absolute;
  top:0;bottom:0;left:6px;
  width:2px;
  background:var(--accent);
  opacity:.2;
  transition:opacity .12s,box-shadow .12s;
}
.table-col-resizer:hover::before,
 .table-col-resizer.active::before,
.table-col-resizer:active::before{
  opacity:1;
  box-shadow:0 0 0 2px var(--highlight);
}


/* AI lightbulb: stable brand blue */
.ai-toolbar-btn,
.ai-fm-btn,
.ai-chat-btn{color:#3478f6;}
.ai-toolbar-btn,
.ai-chat-btn{min-width:34px;padding:0 7px;}
.ai-chat-btn svg{width:18px;height:18px;}
.ai-chat-btn.active{background:rgba(52,120,246,.12);}
.ai-bulb{
  width:17px;
  height:17px;
  display:block;
  fill:none;
  stroke:currentColor;
  stroke-width:1.7;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.ai-bulb-spark{fill:currentColor;stroke:none;opacity:.9;}
.ai-toolbar-btn:hover .ai-bulb,
.ai-fm-btn:hover .ai-bulb{filter:drop-shadow(0 0 5px rgba(52,120,246,.38));}
.ai-warning.ok{
  border-color:rgba(90,150,95,.32);
  background:rgba(90,150,95,.08);
}


.share-edit-notice{
  max-width:780px;
  margin:0 auto 12px;
  padding:10px 14px;
  border:1px solid var(--line);
  border-radius:8px;
  background:var(--highlight);
  color:var(--ink-soft);
  font-size:13px;
  line-height:1.55;
  user-select:none;
}

/* 飞书式选区工具栏与段落二级菜单 */
.float-menu{
  border-radius:10px;
  padding:5px;
  gap:2px;
  box-shadow:0 8px 28px rgba(32,41,46,.16);
}
.fm-btn{height:32px;min-width:32px;border-radius:6px;font-size:15px;}
.fm-btn > svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2.1;stroke-linecap:round;stroke-linejoin:round;}
/* 显式声明 fill="currentColor" 的图标保持填充式（与顶部工具栏一致），不强制改为描边式 */
.fm-btn > svg[fill="currentColor"]{fill:currentColor;stroke:none;}
.fm-type-trigger{min-width:54px;gap:4px;background:var(--bg-hover);}
.fm-type-trigger > svg:first-child{width:22px;height:22px;}
.fm-type-trigger .fm-chevron{width:14px;height:14px;color:var(--ink-faint);}
.fm-type-trigger[aria-expanded="true"]{background:var(--bg-active);color:var(--ink);}
.ctx-menu{
  min-width:232px;
  padding:7px;
  border-radius:12px;
  border-color:var(--line-soft);
  box-shadow:0 14px 40px rgba(32,41,46,.17);
  animation:submenuIn .12s ease-out;
}
@keyframes submenuIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}
.ctx-menu-label{padding:7px 10px 5px;color:var(--ink-faint);font-size:11px;font-weight:600;letter-spacing:.08em;}
.ctx-btn{height:38px;padding:0 10px;border-radius:7px;font-size:13.5px;gap:11px;}
.ctx-btn .ctx-icon{width:24px;flex-basis:24px;display:flex;align-items:center;justify-content:center;color:var(--ink-soft);}
.ctx-btn .ctx-icon svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2.05;stroke-linecap:round;stroke-linejoin:round;}
.ctx-type-icon{font-size:16px;font-weight:650;letter-spacing:-.04em;}
.ctx-btn.active{background:var(--highlight);color:var(--accent);}
.ctx-btn.active .ctx-icon{color:var(--accent);}
.ctx-check{margin-left:auto;font-size:15px;font-weight:700;}

/* ============ 导出图片弹窗 ============ */
.export-image-modal{width:1080px;max-width:96vw;}
.expimg-layout{display:flex;gap:20px;min-height:420px;}
.expimg-sidebar{
  flex:0 0 180px;
  display:flex;flex-direction:column;gap:10px;
  padding:8px 4px 4px 0;
}
.expimg-label{font-size:11.5px;font-weight:600;color:var(--ink-faint);letter-spacing:.05em;}
.expimg-styles{display:flex;flex-direction:column;gap:4px;}
.expimg-style{
  padding:7px 12px;
  border:1px solid var(--line);
  border-radius:6px;
  background:var(--bg-editor);
  color:var(--ink);
  font-family:var(--sans);
  font-size:13px;
  cursor:pointer;
  text-align:left;
  transition:border-color .15s,background .15s;
}
.expimg-style:hover{border-color:var(--accent-soft);}
.expimg-style.active{border-color:var(--accent);background:var(--highlight);font-weight:600;}
.expimg-width-row{display:flex;align-items:center;gap:8px;}
.expimg-slider{flex:1;accent-color:var(--accent);}
.expimg-width-val{font-size:12px;color:var(--ink-soft);min-width:42px;text-align:right;}
.expimg-select{
  padding:6px 10px;
  border:1px solid var(--line);
  border-radius:6px;
  background:var(--bg-editor);
  color:var(--ink);
  font-family:var(--sans);
  font-size:13px;
  cursor:pointer;
}
.expimg-download{
  margin-top:auto;
  padding:10px 16px;
  background:var(--primary);
  color:var(--primary-ink);
  border:none;
  border-radius:6px;
  cursor:pointer;
  font-family:var(--sans);
  font-size:13px;
  font-weight:600;
  white-space:nowrap;
  transition:background .15s;
}
.expimg-download:hover{background:var(--primary-hover);}
.expimg-download:disabled{opacity:.5;cursor:not-allowed;}
.expimg-preview-wrap{flex:1;min-width:0;display:flex;flex-direction:column;}
.expimg-preview-label{font-size:11.5px;font-weight:600;color:var(--ink-faint);letter-spacing:.05em;margin-bottom:8px;}
.expimg-preview{
  flex:1;
  overflow:auto;
  border:1px solid var(--line);
  border-radius:8px;
  background:var(--bg-editor);
  display:block;
  min-height:480px;
  padding:16px;
}
.expimg-preview img{display:block;margin:0 auto;max-width:100%;height:auto;}
.expimg-preview.empty{display:flex;align-items:center;justify-content:center;color:var(--ink-faint);font-size:13px;}
.ctx-sep{margin:6px 4px;}
.image-drag-preview{
  position:fixed;
  left:-10000px;
  top:-10000px;
  overflow:hidden;
  border:2px solid rgba(52,120,246,.42);
  border-radius:7px;
  background:#fff;
  box-shadow:0 8px 24px rgba(32,41,46,.22);
  pointer-events:none;
  z-index:99999;
}

/* ============ 桌面端主页仪表盘 ============ */
body.dashboard-active .toolbar,
body.dashboard-active .editor-wrap{display:none;}
.dashboard{
  flex:1 1 auto;
  overflow-y:auto;
  background:var(--bg);
  padding:48px 48px 80px;
  -webkit-overflow-scrolling:touch;
  user-select:none;
}
.dashboard[hidden]{display:none;}
.dashboard-wrap{
  max-width:960px;
  margin:0 auto;
}
.dashboard-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
  padding-bottom:22px;
  border-bottom:1px solid var(--line-soft);
}
.dashboard-greeting h2{
  margin:0 0 6px;
  font-size:24px;
  font-weight:600;
  color:var(--ink);
  letter-spacing:.5px;
}
.dashboard-greeting h2 span{color:var(--accent);}
.dashboard-sub{
  margin:0;
  font-size:13px;
  color:var(--ink-faint);
}
.dashboard-actions{display:flex;gap:10px;}
.dash-btn{
  appearance:none;
  border:1px solid var(--line);
  background:var(--bg-editor);
  color:var(--ink);
  height:38px;
  padding:0 16px;
  border-radius:8px;
  font-family:var(--sans);
  font-size:13px;
  font-weight:500;
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:background .15s,border-color .15s,transform .1s;
}
.dash-btn:hover{background:var(--bg-hover);border-color:var(--accent-soft);}
.dash-btn:active{transform:scale(.98);}
.dash-btn-primary{
  background:var(--primary);
  color:var(--primary-ink);
  border-color:transparent;
  font-weight:600;
}
.dash-btn-primary:hover{background:var(--primary-hover);border-color:transparent;}
.dash-btn svg{width:14px;height:14px;}

.dashboard-stats{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:14px;
  margin-bottom:36px;
}
.stat-card{
  background:var(--bg-panel);
  border:1px solid var(--line-soft);
  border-radius:12px;
  padding:18px 20px;
}
.stat-num{
  font-size:28px;
  font-weight:600;
  color:var(--accent);
  line-height:1.2;
  letter-spacing:.5px;
}
.stat-label{
  font-size:12px;
  color:var(--ink-faint);
  margin-top:4px;
  letter-spacing:.5px;
}

.dashboard-section{margin-bottom:32px;}
.dashboard-section-title{
  margin:0 0 14px;
  font-size:13px;
  font-weight:600;
  color:var(--ink-soft);
  letter-spacing:.5px;
}
.dashboard-docs{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(220px,1fr));
  gap:14px;
}
.dash-doc{
  appearance:none;
  text-align:left;
  background:var(--bg-panel);
  border:1px solid var(--line-soft);
  border-radius:12px;
  padding:16px 18px;
  cursor:pointer;
  transition:background .15s,border-color .15s,transform .1s;
  display:flex;
  flex-direction:column;
  gap:6px;
  font-family:var(--sans);
}
.dash-doc:hover{
  background:var(--bg-hover);
  border-color:var(--accent-soft);
  transform:translateY(-1px);
}
.dash-doc:active{transform:translateY(0);}
.dash-doc-title{
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.dash-doc-snippet{
  font-size:12px;
  color:var(--ink-faint);
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  min-height:36px;
}
.dash-doc-meta{
  font-size:11px;
  color:var(--ink-faint);
  margin-top:2px;
  letter-spacing:.3px;
}
.dash-empty{
  grid-column:1/-1;
  padding:40px 20px;
  text-align:center;
  color:var(--ink-faint);
  font-size:13px;
  background:var(--bg-panel);
  border:1px dashed var(--line);
  border-radius:12px;
}
.dash-shared-doc{border-color:color-mix(in srgb,var(--accent-soft) 72%,var(--line-soft));background:color-mix(in srgb,var(--bg-panel) 94%,var(--highlight));}
.dash-shared-doc:hover{border-color:var(--accent-soft);}
.dash-shared-meta{display:flex;align-items:center;gap:7px;min-width:0;margin-top:auto;color:var(--ink-faint);font-size:11px;letter-spacing:.2px;}
.dash-shared-meta > span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.dash-shared-permission,.shared-sidebar-permission{display:inline-flex;align-items:center;flex:0 0 auto;padding:1px 6px;border-radius:999px;background:var(--highlight);color:var(--accent);font-size:10px;font-weight:600;line-height:1.5;}
.shared-sidebar-section{margin:6px 0 12px;padding:2px 4px 12px;border-bottom:1px solid var(--line-soft);}
.shared-sidebar-head{display:flex;align-items:center;gap:7px;padding:8px 8px 7px;color:var(--ink-soft);font-size:12px;font-weight:650;letter-spacing:.04em;}
.shared-sidebar-head svg{width:15px;height:15px;color:var(--accent);}
.shared-sidebar-item{display:flex;width:100%;min-height:44px;padding:9px 10px;border:0;border-radius:8px;background:transparent;color:var(--ink);cursor:pointer;font-family:var(--sans);text-align:left;flex-direction:column;gap:4px;}
.shared-sidebar-item:hover{background:var(--bg-hover);}
.shared-sidebar-item:active{background:var(--bg-active);}
.shared-sidebar-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px;font-weight:550;}
.shared-sidebar-meta{display:flex;align-items:center;gap:6px;min-width:0;color:var(--ink-faint);font-size:11px;line-height:1.3;}
.shared-sidebar-meta > span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* 移动端仪表盘：紧凑布局 */
@media (max-width:760px){
  .dashboard{padding:24px 16px calc(100px + env(safe-area-inset-bottom));}
  .dashboard-head{
    flex-direction:column;
    align-items:stretch;
    gap:14px;
    margin-bottom:22px;
    padding-bottom:16px;
  }
  .dashboard-greeting h2{font-size:20px;}
  .dashboard-actions{justify-content:stretch;}
  .dash-btn{flex:1 1 0;justify-content:center;padding:0 10px;}
  .dashboard-stats{gap:8px;}
  .stat-card{padding:12px 10px;border-radius:10px;}
  .stat-num{font-size:20px;}
  .stat-label{font-size:11px;}
  .dashboard-docs{grid-template-columns:1fr;gap:10px;}
  .dash-doc{padding:14px 16px;}
}

/* ============ 版本历史 ============ */
.version-history-btn{
  appearance:none;border:none;background:transparent;color:var(--ink-soft);
  min-height:28px;padding:0 5px;border-radius:5px;cursor:pointer;
  display:inline-flex;align-items:center;gap:5px;font:inherit;white-space:nowrap;
  transition:background .12s,color .12s;
}
.version-history-btn svg{width:14px;height:14px;}
.version-history-btn:hover{background:var(--highlight);color:var(--ink);}
.mobile-doc-menu-btn{display:none;}
.version-history-modal{width:min(940px,92vw);max-height:min(760px,84vh);}
.version-history-body{padding:0;overflow:hidden;}
.version-history-intro{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 18px;border-bottom:1px solid var(--line-soft);background:var(--bg-panel);
}
.version-history-intro > div{min-width:0;display:flex;flex-direction:column;gap:3px;}
.version-history-intro strong{font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.version-history-intro span{font-size:12px;color:var(--ink-faint);}
.version-create-btn{height:32px;flex:0 0 auto;font-size:12px;}
.version-history-layout{display:grid;grid-template-columns:minmax(250px,31%) minmax(0,1fr);height:calc(min(760px,84vh) - 116px);min-height:430px;}
.version-history-list-wrap{overflow-y:auto;background:var(--bg-panel);border-right:1px solid var(--line-soft);padding:10px;}
.version-history-list{display:flex;flex-direction:column;gap:6px;}
.version-history-item{
  appearance:none;width:100%;border:1px solid transparent;border-radius:10px;background:transparent;
  color:var(--ink);padding:10px;text-align:left;cursor:pointer;font-family:var(--sans);
  display:flex;flex-direction:column;gap:5px;transition:background .12s,border-color .12s;
}
.version-history-item:hover{background:var(--highlight);}
.version-history-item.active{background:var(--bg-editor);border-color:var(--accent-soft);box-shadow:0 1px 0 rgba(0,0,0,.02);}
.version-history-item-top{display:flex;align-items:center;gap:8px;min-width:0;}
.version-history-item-top strong{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px;font-weight:650;}
.version-history-item-top time{margin-left:auto;flex:0 0 auto;color:var(--ink-faint);font-size:11px;font-variant-numeric:tabular-nums;}
.version-history-item-meta{font-size:11.5px;color:var(--ink-soft);line-height:1.4;}
.version-history-empty{display:flex;flex-direction:column;gap:6px;padding:22px 12px;color:var(--ink-soft);font-size:12px;line-height:1.6;}
.version-history-empty strong{color:var(--ink);font-size:13px;}
.version-history-preview{min-width:0;display:flex;flex-direction:column;padding:18px;overflow:hidden;background:var(--bg-editor);}
.version-preview-empty{height:100%;display:flex;align-items:center;justify-content:center;text-align:center;color:var(--ink-faint);font-size:13px;line-height:1.6;padding:24px;}
.version-preview-head{display:flex;flex-direction:column;gap:4px;padding-bottom:12px;border-bottom:1px solid var(--line-soft);}
.version-preview-head strong{font-size:18px;line-height:1.4;}
.version-preview-head span{color:var(--ink-faint);font-size:12px;}
.version-preview-note{margin:12px 0 10px;padding:8px 10px;border-radius:8px;background:var(--highlight);color:var(--ink-soft);font-size:12px;line-height:1.55;}
.version-preview-render{flex:1 1 auto;min-height:0;margin:0;overflow:auto;font:14px/1.75 var(--sans);color:var(--ink);word-break:break-word;overflow-wrap:anywhere;}
.version-preview-render>*:first-child{margin-top:0;}
.version-preview-render>*:last-child{margin-bottom:0;}
.version-preview-render h1{font-size:22px;font-weight:700;line-height:1.35;margin:18px 0 10px;}
.version-preview-render h2{font-size:18px;font-weight:700;line-height:1.4;margin:16px 0 8px;}
.version-preview-render h3{font-size:16px;font-weight:600;line-height:1.45;margin:14px 0 6px;}
.version-preview-render p{margin:0 0 10px;}
.version-preview-render ul,.version-preview-render ol{margin:0 0 10px;padding-left:24px;}
.version-preview-render li{margin:2px 0;}
.version-preview-render blockquote{margin:0 0 10px;padding:6px 14px;border-left:3px solid var(--line-soft);color:var(--ink-soft);background:var(--highlight);}
.version-preview-render pre{margin:0 0 10px;padding:10px 12px;border-radius:8px;background:var(--code-bg);overflow:auto;font:13px/1.6 var(--mono);}
.version-preview-render code{font:13px/1.6 var(--mono);background:var(--code-bg);padding:1px 5px;border-radius:4px;}
.version-preview-render pre code{background:none;padding:0;}
.version-preview-render img{max-width:100%;height:auto;border-radius:8px;margin:4px 0;pointer-events:none;}
.version-preview-render table{border-collapse:collapse;width:100%;margin:0 0 10px;font-size:13px;}
.version-preview-render th,.version-preview-render td{border:1px solid var(--line-soft);padding:6px 9px;text-align:left;}
.version-preview-render hr{border:none;border-top:1px solid var(--line-soft);margin:14px 0;}
.version-preview-render a{color:var(--link);pointer-events:none;}
.version-preview-actions{display:flex;justify-content:flex-end;gap:8px;padding-top:14px;}
.version-preview-actions .btn{min-height:34px;}

@media (max-width:760px){
  .mobile-doc-menu-btn{
    appearance:none;border:none;background:transparent;color:var(--ink-soft);
    width:44px;height:44px;min-width:44px;padding:0;border-radius:12px;cursor:pointer;
    display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
  }
  .mobile-doc-menu-btn:active{background:var(--bg-active);color:var(--ink);}
  .mobile-doc-menu-btn svg{width:20px;height:20px;}
  .doc-title-ai-wrap{display:none!important;}
  .version-history-modal{max-height:90vh;}
  .version-history-intro{padding:12px 16px;gap:10px;}
  .version-history-intro span{max-width:220px;}
  .version-history-layout{display:flex;flex-direction:column;min-height:0;max-height:calc(90vh - 108px);}
  .version-history-list-wrap{max-height:230px;border-right:none;border-bottom:1px solid var(--line-soft);padding:10px 12px;}
  .sidebar-resizer{display:none;}
  .version-history-preview{min-height:280px;padding:16px;}
  .version-preview-render{font-size:13px;}
  .version-preview-actions{justify-content:stretch;}
  .version-preview-actions .btn{flex:1 1 0;min-width:0;padding-left:8px;padding-right:8px;}
}

/* ============ 代码块工具栏（飞书式）============
   只读视图（阅读模式/分享页/版本预览）的代码块：头部工具栏条始终占位，
   左上角折叠、右上角复制；桌面悬停显示、移动端点按显示，绝不与代码重叠。
   折叠后整块收成一条细黑条，不显示两个 icon，点击黑条展开。
   放在文件末尾，确保覆盖前面所有 pre 盒子样式（.editor pre / .share-reader pre 等）。 */
.code-block{position:relative;margin:.8em 0;}
.code-block > pre{
  margin:0;
  border-top:none;
  border-top-left-radius:0;
  border-top-right-radius:0;
}
.code-block .cb-bar{
  display:flex;align-items:center;justify-content:space-between;
  height:30px;padding:0 6px;
  background:rgba(127,127,127,.10);
  border:1px solid var(--code-border);
  border-bottom:none;
  border-radius:6px 6px 0 0;
}
.code-block .cb-collapse,
.code-block .cb-copy{
  width:24px;height:24px;padding:0;
  display:flex;align-items:center;justify-content:center;
  border:none;border-radius:5px;cursor:pointer;
  background:transparent;color:var(--ink);
  opacity:0;transition:opacity .15s;
}
.code-block:hover .cb-collapse,
.code-block:hover .cb-copy,
.code-block.tapped .cb-collapse,
.code-block.tapped .cb-copy{opacity:1;}
.code-block .cb-collapse:hover,
.code-block .cb-copy:hover{background:rgba(127,127,127,.16);}
.code-block .cb-collapse svg,
.code-block .cb-copy svg{width:16px;height:16px;display:block;}
.code-block .cb-copy.cb-copied{color:#2e9e5b;}
/* 折叠态：整块收成一条细黑条，不显示两个 icon */
.code-block.collapsed > pre{display:none;}
.code-block.collapsed .cb-bar{
  height:26px;
  justify-content:center;
  border:1px solid #000;
  border-radius:6px;
  background:#000;
  cursor:pointer;
}
.code-block.collapsed .cb-collapse,
.code-block.collapsed .cb-copy{display:none;}
.code-block.collapsed .cb-bar::after{
  content:'代码块';
  font-size:12px;color:rgba(255,255,255,.75);
}

/* ============ 脚注（Markdown [^n] 导入 + 富文本粘贴 + 分享页） ============ */
/* 结构：sup.fn-ref > a（正文引用）；hr.footnote-sep + section.footnotes > .footnote-title
   + ol.footnote-list > li.footnote-item[id=fn-x][data-fn-id] > span.footnote-text + a.fn-back
   回跳箭头用 CSS mask 渲染（编辑器存的是 innerHTML，不注入内联 SVG，导出/分享清洗零污染）。 */

:where(.editor,.share-reader,.share-editor,.version-preview-render) .fn-ref{
  font-size:.72em;
  line-height:0;
  vertical-align:.28em; /* 显式低抬升：比 super 更贴近基线，连续引用不悬空扎堆 */
  margin-left:.16em;   /* 连续 [^1][^2] 药丸之间留缝，不再贴成一坨 */
}
:where(.editor,.share-reader,.share-editor,.version-preview-render) .fn-ref > a{
  display:inline-block;
  min-width:1.35em;
  padding:0 .28em;
  border-radius:999px;
  background:color-mix(in srgb,var(--link) 12%,transparent);
  color:var(--link);
  font-family:var(--sans);
  font-weight:600;
  text-decoration:none;
  text-align:center;
  cursor:pointer;
  -webkit-user-select:none;user-select:none;
  transition:background .12s,color .12s;
}
:where(.editor,.share-reader,.share-editor,.version-preview-render) .fn-ref > a:hover{
  background:color-mix(in srgb,var(--link) 22%,transparent);
}
:where(.editor,.share-reader,.share-editor,.version-preview-render) .fn-ref > a:focus-visible{
  outline:2px solid var(--link);
  outline-offset:1px;
}
/* 编辑态：上标药丸可点击（点击由容器事件委托处理，冒泡到 footnote.js 的逻辑） */
:where(.editor,.share-editor) .fn-ref > a{cursor:pointer;}

:where(.editor,.share-reader,.share-editor,.version-preview-render) .footnote-sep{border:none;border-top:1px solid var(--line);margin:2.2em 0 1.2em;}
:where(.editor,.share-reader,.share-editor,.version-preview-render) .footnotes{margin:0 0 1em;}
:where(.editor,.share-reader,.share-editor,.version-preview-render) .footnote-title{
  font-family:var(--sans);font-size:.82em;font-weight:600;letter-spacing:.14em;
  color:var(--ink-faint);margin:0 0 .55em;
}
:where(.editor,.share-reader,.share-editor,.version-preview-render) .footnote-list{
  list-style:none;margin:0;padding:0;counter-reset:fn 0;
}
:where(.editor,.share-reader,.share-editor,.version-preview-render) .footnote-list > li{
  position:relative;
  padding:.35em 1.6em .35em 1.9em;
  margin:0 0 .3em;
  line-height:1.65;
  color:var(--ink-soft);
  font-size:.92em;
  overflow-wrap:anywhere;
}
:where(.editor,.share-reader,.share-editor,.version-preview-render) .footnote-list > li::before{
  counter-increment:fn;
  content:counter(fn);
  position:absolute;left:0;top:.42em;
  font-family:var(--sans);font-size:.78em;font-weight:600;
  color:var(--accent);
  background:color-mix(in srgb,var(--accent) 13%,transparent);
  min-width:1.5em;
  padding:0 .25em;
  border-radius:999px;
  text-align:center;
}
:where(.editor,.share-reader,.share-editor,.version-preview-render) .fn-back{
  position:absolute;right:0;top:.32em;
  width:22px;height:22px;
  border-radius:6px;
  cursor:pointer;
  -webkit-user-select:none;user-select:none;
}
:where(.editor,.share-reader,.share-editor,.version-preview-render) .fn-back:hover{background:var(--bg-hover);}
:where(.editor,.share-reader,.share-editor,.version-preview-render) .fn-back::after{
  content:"";
  position:absolute;inset:0;margin:auto;
  width:12px;height:12px;
  background-color:var(--ink-faint);
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 19V5'/%3E%3Cpath d='m5 12 7-7 7 7'/%3E%3C/svg%3E") center/contain no-repeat;
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 19V5'/%3E%3Cpath d='m5 12 7-7 7 7'/%3E%3C/svg%3E") center/contain no-repeat;
}
:where(.editor,.share-reader,.share-editor,.version-preview-render) .fn-back:hover::after{background-color:var(--ink);}
:where(.editor,.share-reader,.share-editor,.version-preview-render) .footnote-text a{
  color:var(--link);
}
:where(.editor,.share-reader,.share-editor,.version-preview-render) .footnote-text code{
  padding:1px 5px;border-radius:4px;background:var(--code-bg);border:1px solid var(--code-border);
}

/* 桌面悬停卡片（footnote.js 动态创建，挂 body；fixed 定位与视口坐标一致） */
.fn-pop-card{
  position:fixed;z-index:260;
  max-width:340px;
  padding:10px 14px;
  border-radius:8px;
  border:1px solid color-mix(in srgb,var(--line) 88%,transparent);
  background:var(--bg-editor);
  box-shadow:var(--shadow);
  font-family:var(--sans);font-size:13px;line-height:1.65;color:var(--ink);
  max-height:220px;overflow:auto;
  animation:fn-card-in .14s ease-out;
}
@keyframes fn-card-in{from{opacity:0;transform:translateY(4px);}to{opacity:1;transform:none;}}
.fn-pop-card.above{animation-name:fn-card-in-above;}
@keyframes fn-card-in-above{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}
.fn-pop-card p{margin:.4em 0;}
.fn-pop-card a{color:var(--link);}
.fn-pop-card code{padding:1px 5px;border-radius:4px;background:var(--code-bg);border:1px solid var(--code-border);}

/* 移动端底部注释弹层（与 share-toc-sheet 同一交互语言） */
.fn-sheet{
  position:fixed;z-index:260;right:0;bottom:0;left:0;
  display:flex;flex-direction:column;
  max-height:min(72dvh,560px);
  max-width:100vw;
  overflow:hidden;
  background:var(--bg-editor);
  border:1px solid var(--line);border-width:1px 0 0;
  border-radius:20px 20px 0 0;
  box-shadow:0 -12px 36px rgba(30,25,18,.16);
  padding-bottom:env(safe-area-inset-bottom);
  transform:translateY(100%);
  transition:transform .18s ease-out;
}
.fn-sheet.open{transform:none;}
.fn-sheet[hidden]{display:none;}
.fn-sheet-head{
  flex:0 0 auto;
  height:54px;padding:0 12px 0 18px;
  border-bottom:1px solid var(--line-soft);
  display:flex;align-items:center;justify-content:space-between;
}
.fn-sheet-head strong{font-family:var(--sans);font-size:15px;color:var(--ink);}
.fn-sheet-close{
  width:40px;height:40px;border:0;border-radius:10px;
  background:transparent;color:var(--ink-soft);
  display:grid;place-items:center;cursor:pointer;user-select:none;
}
.fn-sheet-close:hover{background:var(--bg-hover);color:var(--ink);}
.fn-sheet-close svg{width:20px;height:20px;}
.fn-sheet-body{
  overflow:auto;
  padding:16px 18px calc(18px + env(safe-area-inset-bottom)/2);
  font-family:var(--sans);font-size:15px;line-height:1.75;color:var(--ink);
  overflow-wrap:anywhere;
}
.fn-sheet-body p{margin:.45em 0;}
.fn-sheet-body a{color:var(--link);}
.fn-sheet-body code{padding:1px 5px;border-radius:4px;background:var(--code-bg);border:1px solid var(--code-border);}
.fn-sheet-backdrop{
  position:fixed;inset:0;z-index:259;
  background:rgba(20,22,22,.42);
}
.fn-sheet-backdrop[hidden]{display:none;}
/* 注意：不能用 body.fn-sheet-open{overflow:hidden} 锁滚动——
   body 已被 JS 设为 position:fixed+top:-scrollY 冻结，若再裁剪
   （html/body 高 100%），整个被钉住的盒子连同内容都会被裁出视口，
   表现为背景大面积空白。锁滚动完全由 JS 冻结法负责（同章节抽屉）。 */

/* 深色主题微调：卡片/弹层表面更亮，与页面拉开层级 */
[data-theme="dark"] .fn-pop-card{
  background:#252b2c;
  border-color:rgba(96,108,105,.55);
}
[data-theme="dark"] .fn-sheet{
  background:#252b2c;
  border-color:rgba(96,108,105,.55);
  box-shadow:0 -12px 36px rgba(0,0,0,.55);
}