/* ============================================================
   素笺 · 简洁风格（暖米白 / 暖深色）
   ============================================================ */

:root {
  --r-xl: 16px;
  --r-lg: 12px;
  --r-md: 10px;
  --r-sm: 8px;
  --accent: #d97757;
  --accent-strong: #c96442;
  --danger: #c15b5b;
  --star: #d4a53f;
  --ok: #7a9d54;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #faf9f5;
  --surface: #ffffff;
  --surface-2: #f2f0e9;
  --surface-3: #e9e6dd;
  --border: #e7e4da;
  --border-strong: #d9d5c9;
  --text-1: #21201c;
  --text-2: #6e6c64;
  --text-3: #a29f96;
  --accent-weak: rgba(217, 119, 87, .11);
  --danger-weak: rgba(193, 91, 91, .1);
  --star-weak: rgba(212, 165, 63, .18);
  --shadow-1: 0 1px 2px rgba(40, 37, 28, .05);
  --shadow-2: 0 12px 32px -8px rgba(40, 37, 28, .18);
  --ring: rgba(217, 119, 87, .28);
  --code-bg: #f6f4ec;
  --quote-bg: #faf8f1;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #262624;
  --surface: #30302d;
  --surface-2: #3a3a36;
  --surface-3: #45443f;
  --border: #3d3d39;
  --border-strong: #4c4b45;
  --text-1: #f2f1ea;
  --text-2: #b3b1a8;
  --text-3: #7f7d75;
  --accent-weak: rgba(217, 119, 87, .2);
  --danger-weak: rgba(224, 122, 122, .16);
  --star-weak: rgba(212, 165, 63, .24);
  --shadow-1: 0 1px 2px rgba(0, 0, 0, .2);
  --shadow-2: 0 16px 40px -8px rgba(0, 0, 0, .5);
  --ring: rgba(217, 119, 87, .4);
  --code-bg: #212120;
  --quote-bg: #2a2a27;
}

/* ---------- 基础 ---------- */
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }

body {
  font-family: "Inter", "HarmonyOS Sans SC", "MiSans", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", system-ui,
    -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text-1);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background-color .45s ease, color .45s ease;
}

button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
input, select { font: inherit; color: inherit; }
svg { display: block; }
[hidden] { display: none !important; }

.icon-btn svg, .tool svg, .btn svg {
  width: 18px; height: 18px;
  fill: none; stroke: currentColor;
  stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
}

::selection { background: rgba(217, 119, 87, .25); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 8px; border: 3px solid transparent; background-clip: padding-box; }
::-webkit-scrollbar-thumb:hover { border-width: 2px; }
::-webkit-scrollbar-track { background: transparent; }

:focus-visible { outline: 2px solid var(--ring); outline-offset: 2px; border-radius: 6px; }

kbd {
  display: inline-block;
  padding: 2px 7px;
  font-size: 11px;
  font-family: inherit;
  color: var(--text-2);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 6px;
}

h1, h2, h3 { font-family: ui-serif, Georgia, "Songti SC", Simsun, serif; }

/* ---------- 布局 ---------- */
.app {
  height: 100dvh;
  max-width: 1400px;
  margin: 0 auto;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.workspace { flex: 1; display: flex; gap: 14px; min-height: 0; }
body.sidebar-collapsed .workspace { gap: 0; }

/* ---------- 顶栏 ---------- */
.topbar {
  height: 58px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 12px 0 14px;
  animation: drop-in .4s var(--ease) both;
}

.brand { display: flex; align-items: center; gap: 10px; user-select: none; flex-shrink: 0; margin-right: 4px; }
.brand-logo { width: 30px; height: 30px; display: grid; place-items: center; }
.brand-logo svg { width: 26px; height: 26px; }
.brand-name { font-size: 17px; font-weight: 700; letter-spacing: .3px; }

.search {
  flex: 1;
  max-width: 440px;
  margin: 0 auto;
  height: 38px;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 0 12px 0 13px;
  background: var(--surface-2);
  border: 1px solid transparent;
  border-radius: var(--r-md);
  transition: background .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.search:hover { background: var(--surface-3); }
.search:focus-within {
  background: var(--surface);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-weak);
}
.search svg { width: 16px; height: 16px; flex-shrink: 0; stroke: var(--text-3); fill: none; stroke-width: 2; stroke-linecap: round; }
.search input { flex: 1; min-width: 0; background: none; border: none; outline: none; color: var(--text-1); font-size: 13.5px; }
.search input::placeholder { color: var(--text-3); }
.search kbd { flex-shrink: 0; }

.topbar-actions { display: flex; align-items: center; gap: 6px; flex-shrink: 0; }

.cloud-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--text-3);
  margin: 0 4px;
  transition: background .3s ease;
}
.cloud-dot[data-state="on"] { background: var(--ok); }
.cloud-dot[data-state="off"] { background: var(--text-3); }

/* ---------- 按钮 ---------- */
.icon-btn {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border-radius: var(--r-sm);
  color: var(--text-2);
  transition: background .15s ease, color .15s ease, transform .15s ease;
}
.icon-btn:hover { background: var(--surface-2); color: var(--text-1); }
.icon-btn:active { transform: scale(.93); }
.icon-btn.danger:hover { background: var(--danger-weak); color: var(--danger); }
.icon-btn.on { color: var(--accent); background: var(--accent-weak); }
#favBtn.on { color: var(--star); background: var(--star-weak); }

.btn {
  height: 36px;
  padding: 0 14px;
  border-radius: var(--r-md);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-1);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  transition: background .15s ease, border-color .15s ease, transform .15s ease, opacity .15s ease;
}
.btn:hover { background: var(--surface-2); }
.btn:active { transform: scale(.98); }
.btn svg { width: 15px; height: 15px; }

.btn.primary, .btn.accent {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}
.btn.primary:hover, .btn.accent:hover { background: var(--accent-strong); border-color: var(--accent-strong); }

#themeBtn .ico-moon { display: none; }
html[data-theme="light"] #themeBtn .ico-sun { display: none; }
html[data-theme="light"] #themeBtn .ico-moon { display: block; }

.menu-btn, .back-btn { display: none; }

/* ---------- 侧栏 ---------- */
.sidebar {
  width: 328px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-1);
  animation: rise-in .4s .05s var(--ease) both;
  transition: width .32s var(--ease), opacity .25s ease, visibility .32s;
}
.sidebar > * { min-width: 328px; }
body.sidebar-collapsed .sidebar { width: 0; min-width: 0; opacity: 0; visibility: hidden; border-width: 0; }

.side-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 14px 14px 8px;
}

.filters { display: flex; gap: 2px; }

.filter {
  height: 28px;
  padding: 0 12px;
  border-radius: var(--r-sm);
  font-size: 12.5px;
  color: var(--text-2);
  transition: background .15s ease, color .15s ease;
}
.filter:hover { background: var(--surface-2); color: var(--text-1); }
.filter.active { color: var(--accent-strong); font-weight: 600; background: var(--accent-weak); }
html[data-theme="dark"] .filter.active { color: #e79b7f; }

.sort-wrap select {
  appearance: none;
  background: none;
  border: none;
  outline: none;
  color: var(--text-2);
  font-size: 12px;
  padding: 4px 20px 4px 8px;
  cursor: pointer;
  border-radius: var(--r-sm);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%23a29f96' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 6px center;
}
.sort-wrap select:hover { background-color: var(--surface-2); }

/* 标签栏 */
.tag-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 4px 14px 12px;
  border-bottom: 1px solid var(--border);
}
.tag-bar:empty { display: none; }

.tag-chip {
  height: 24px;
  padding: 0 9px;
  border-radius: 999px;
  font-size: 11.5px;
  color: var(--text-2);
  background: var(--surface-2);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: background .15s ease, color .15s ease;
}
.tag-chip:hover { color: var(--text-1); background: var(--surface-3); }
.tag-chip.active { color: #fff; background: var(--accent); }
.tag-chip .cnt { font-size: 10px; opacity: .65; }

/* 笔记列表 */
.note-list { flex: 1; overflow-y: auto; padding: 8px 10px 12px; }
.note-list.no-anim .note-item { animation: none; }

.note-item {
  position: relative;
  padding: 10px 12px;
  border-radius: var(--r-lg);
  cursor: pointer;
  margin-bottom: 4px;
  animation: item-in .3s calc(var(--i) * .03s) var(--ease) backwards;
  transition: background .15s ease;
  overflow: hidden;
}
.note-item:hover { background: var(--surface-2); }

.note-item.active { background: var(--accent-weak); box-shadow: inset 2.5px 0 0 var(--accent); }
.note-item.active .ni-title { color: var(--accent-strong); }
html[data-theme="dark"] .note-item.active .ni-title { color: #e79b7f; }

.note-item::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(115deg, transparent 42%, rgba(255, 255, 255, .18) 50%, transparent 58%) no-repeat;
  background-size: 260% 100%;
  background-position: 130% 0;
  opacity: 0;
  pointer-events: none;
}
html[data-theme="light"] .note-item::after { background-image: linear-gradient(115deg, transparent 42%, rgba(255, 255, 255, .75) 50%, transparent 58%); }
.note-item:hover::after { opacity: 1; animation: sheen .8s ease; }

.ni-top { display: flex; align-items: center; gap: 6px; }
.ni-flag { flex-shrink: 0; display: grid; place-items: center; }
.ni-flag svg { width: 13px; height: 13px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.ni-flag.pin { color: var(--accent); }
.ni-flag.star { color: var(--star); }

.ni-title {
  flex: 1;
  min-width: 0;
  font-size: 13.5px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ni-time { flex-shrink: 0; font-size: 10.5px; color: var(--text-3); }

.ni-snippet {
  margin-top: 3px;
  font-size: 12px;
  line-height: 1.55;
  color: var(--text-2);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-all;
}

.ni-tags { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 7px; }
.ni-tags:empty { display: none; }
.ni-tag { font-size: 10px; color: var(--text-3); padding: 2px 7px; border-radius: 999px; background: var(--surface-2); }

.ni-del {
  position: absolute;
  right: 8px; bottom: 8px;
  width: 26px; height: 26px;
  display: grid; place-items: center;
  border-radius: var(--r-sm);
  color: var(--text-3);
  background: var(--surface);
  opacity: 0;
  transition: opacity .15s ease, background .15s ease, color .15s ease;
}
.ni-del svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; }
.note-item:hover .ni-del { opacity: 1; }
.ni-del:hover { background: var(--danger-weak); color: var(--danger); }

.list-empty { padding: 48px 20px; text-align: center; color: var(--text-3); font-size: 13px; }

.side-foot {
  flex-shrink: 0;
  padding: 10px 16px 12px;
  font-size: 11px;
  color: var(--text-3);
  border-top: 1px solid var(--border);
}

/* ---------- 编辑器 ---------- */
.editor {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-1);
  animation: rise-in .4s .1s var(--ease) both;
}

.editor-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-align: center;
  padding: 30px;
}
.empty-logo { width: 64px; height: 64px; margin-bottom: 12px; }
.empty-logo svg { width: 100%; height: 100%; }
.editor-empty h2 { font-size: 22px; font-weight: 600; letter-spacing: .5px; }
.editor-empty p { font-size: 13.5px; color: var(--text-2); margin-top: 2px; }
.empty-keys { display: flex; gap: 18px; margin-top: 18px; font-size: 12px; color: var(--text-3); }
.empty-keys span { display: inline-flex; align-items: center; gap: 5px; }

.editor-body { flex: 1; display: flex; flex-direction: column; min-height: 0; }

.editor-top { display: flex; align-items: center; gap: 10px; padding: 16px 20px 0; }

#titleInput {
  flex: 1;
  min-width: 0;
  background: none;
  border: none;
  outline: none;
  font-size: 24px;
  font-weight: 600;
  color: var(--text-1);
  letter-spacing: .2px;
  padding: 2px 0;
}
#titleInput::placeholder { color: var(--text-3); }

.editor-actions { display: flex; gap: 2px; flex-shrink: 0; }

/* 元信息行 */
.meta-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 8px 22px 0;
  font-size: 12px;
  color: var(--text-3);
}

.meta-tags { display: flex; flex-wrap: wrap; gap: 6px; }

.meta-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 23px;
  padding: 0 5px 0 9px;
  border-radius: 999px;
  font-size: 11.5px;
  color: var(--text-2);
  background: var(--surface-2);
  transition: background .15s ease;
}
.meta-chip:hover { background: var(--surface-3); }
.meta-chip .x {
  width: 15px; height: 15px;
  display: grid; place-items: center;
  border-radius: 50%;
  color: var(--text-3);
  font-size: 12px;
  line-height: 1;
}
.meta-chip .x:hover { background: var(--danger-weak); color: var(--danger); }

#tagInput {
  width: 74px;
  background: none;
  border: none;
  outline: none;
  font-size: 11.5px;
  color: var(--text-1);
  padding: 4px 2px;
}
#tagInput::placeholder { color: var(--text-3); }

.meta-stats { margin-left: auto; display: flex; align-items: center; gap: 7px; flex-shrink: 0; }
.meta-stats .dot { opacity: .5; }

.status { display: inline-flex; align-items: center; gap: 5px; }
.status::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--ok);
}
.status.saving::before { background: var(--star); animation: pulse 1s ease-in-out infinite; }
.status.local::before { background: var(--text-3); }

@keyframes pulse { 50% { opacity: .3; } }

/* ---------- 工具栏 ---------- */
.toolbar {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-wrap: nowrap;
  overflow-x: auto;
  padding: 10px 16px 0;
  scrollbar-width: none;
}
.toolbar::-webkit-scrollbar { display: none; }

.tool-group { display: flex; gap: 1px; flex-shrink: 0; }

.tool {
  height: 30px;
  min-width: 30px;
  padding: 0 6px;
  display: grid;
  place-items: center;
  border-radius: var(--r-sm);
  color: var(--text-2);
  transition: background .15s ease, color .15s ease;
}
.tool svg { width: 16px; height: 16px; }
.tool:hover { background: var(--surface-2); color: var(--text-1); }
.tool:active { transform: scale(.93); }
.tool.active { color: var(--accent-strong); background: var(--accent-weak); }
html[data-theme="dark"] .tool.active { color: #e79b7f; }

.tool-txt { font-size: 12.5px; font-weight: 600; padding: 0 8px; }
.tool-txt.strong { font-weight: 800; }
.tool-txt.italic { font-style: italic; font-family: Georgia, serif; }
.tool-txt.underline { text-decoration: underline; text-underline-offset: 3px; }
.tool-txt.strike { text-decoration: line-through; }

.tool-sep { width: 1px; height: 16px; margin: 0 6px; flex-shrink: 0; background: var(--border); }

/* ---------- 正文区（底色全幅铺满，文字列居中限宽） ---------- */
.page-scroll { flex: 1; overflow-y: auto; padding: 0; }

.page {
  min-height: 100%;
  /* 水平内边距把内容列居中在 860px 内；窄屏时退化为 24px */
  padding: 26px max(24px, calc((100% - 860px) / 2)) 64px;
  background: var(--bg);
  outline: none;
  font-size: 14.5px;
  line-height: 1.85;
  word-break: break-word;
}
html[data-theme="dark"] .page { background: #2a2a27; }

.page:empty::before,
.page.is-empty::before {
  content: attr(data-placeholder);
  color: var(--text-3);
  pointer-events: none;
}

.page h1 { font-size: 23px; margin: 20px 0 12px; }
.page h2 { font-size: 18.5px; margin: 18px 0 10px; }
.page h3 { font-size: 16px; margin: 16px 0 8px; }
.page h1:first-child, .page h2:first-child, .page p:first-child { margin-top: 0; }

.page p { margin: 8px 0; }
.page ul, .page ol { padding-left: 24px; margin: 8px 0; }
.page li { margin: 4px 0; }
.page li::marker { color: var(--accent); }

.page a { color: var(--accent-strong); text-decoration: none; border-bottom: 1px solid rgba(217, 119, 87, .4); }
html[data-theme="dark"] .page a { color: #e79b7f; }

.page blockquote {
  margin: 12px 0;
  padding: 10px 16px;
  border-left: 3px solid var(--accent);
  border-radius: 4px;
  background: var(--quote-bg);
  color: var(--text-2);
}

.page pre {
  margin: 12px 0;
  padding: 14px 18px;
  border-radius: var(--r-md);
  background: var(--code-bg);
  border: 1px solid var(--border);
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.7;
}
.page code { font-family: "JetBrains Mono", "Fira Code", Consolas, "Courier New", monospace; }
.page :not(pre) > code {
  padding: 2px 7px;
  border-radius: 6px;
  font-size: .86em;
  background: var(--accent-weak);
  color: var(--accent-strong);
  border: 1px solid rgba(217, 119, 87, .2);
}
html[data-theme="dark"] .page :not(pre) > code { color: #e79b7f; }

.page hr { border: none; height: 1px; margin: 18px 0; background: var(--border); }
.page img { max-width: 100%; border-radius: var(--r-md); }

.page mark {
  padding: 1px 5px;
  border-radius: 5px;
  background: var(--star-weak);
  color: inherit;
}

/* 待办清单 */
.page .checklist { list-style: none; padding-left: 4px; }
.page .checklist li { display: flex; align-items: flex-start; gap: 10px; margin: 6px 0; }
.page .checklist .tick {
  flex-shrink: 0;
  width: 17px; height: 17px;
  margin-top: 4px;
  border-radius: 5px;
  border: 1.6px solid var(--border-strong);
  display: grid; place-items: center;
  cursor: pointer;
  transition: all .18s ease;
}
.page .checklist li[data-checked="true"] .tick {
  background: var(--accent);
  border-color: var(--accent);
}
.page .checklist li[data-checked="true"] .tick::after {
  content: "";
  width: 9px; height: 5px;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(-45deg) translate(.5px, -.5px);
}
.page .checklist li[data-checked="true"] > .text { color: var(--text-3); text-decoration: line-through; }

/* ---------- Toast ---------- */
.toast-wrap {
  position: fixed;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  z-index: 80;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 11px 18px;
  border-radius: var(--r-lg);
  font-size: 13px;
  color: var(--text-1);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-2);
  animation: toast-in .3s var(--ease) both;
}
.toast.leaving { animation: toast-out .25s ease both; }

.toast .toast-act {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--accent-strong);
  padding: 3px 10px;
  border-radius: 999px;
  transition: background .15s ease;
}
html[data-theme="dark"] .toast .toast-act { color: #e79b7f; }
.toast .toast-act:hover { background: var(--accent-weak); }

/* ---------- 动画 ---------- */
@keyframes drop-in { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: none; } }
@keyframes rise-in { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@keyframes item-in { from { opacity: 0; transform: translateX(-8px); } to { opacity: 1; transform: translateX(0); } }
@keyframes sheen { from { background-position: 130% 0; } to { background-position: -130% 0; } }
@keyframes toast-in { from { opacity: 0; transform: translateY(14px) scale(.95); } to { opacity: 1; transform: none; } }
@keyframes toast-out { to { opacity: 0; transform: translateY(10px) scale(.96); } }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes pop-in { from { opacity: 0; transform: translateY(10px) scale(.97); } to { opacity: 1; transform: none; } }

@keyframes view-in {
  from { opacity: 0; transform: translateY(7px); }
  to   { opacity: 1; transform: none; }
}
.swap { animation: view-in .26s var(--ease) both; }

html.theme-fade, html.theme-fade *,
html.theme-fade *::before, html.theme-fade *::after {
  transition: background-color .45s ease, color .45s ease, border-color .45s ease,
    box-shadow .45s ease, fill .45s ease, stroke .45s ease, opacity .45s ease !important;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 920px) {
  .app { padding: 10px; gap: 10px; }
  .workspace { gap: 10px; }

  .menu-btn { display: grid; }
  .collapse-btn { display: none !important; }
  .brand-name { display: none; }
  .search kbd { display: none; }
  .cloud-dot { display: none; }
  .btn.primary span { display: none; }
  .btn.primary { width: 36px; padding: 0; justify-content: center; }

  /* 移动端抽屉不受桌面收起状态影响 */
  .sidebar {
    position: fixed;
    left: 10px; top: 10px; bottom: 10px;
    width: min(86vw, 340px) !important;
    min-width: 0 !important;
    opacity: 1 !important;
    visibility: visible !important;
    z-index: 50;
    animation: none;
    transform: translateX(calc(-100% - 20px));
    transition: transform .34s var(--ease);
  }
  .sidebar.open { transform: none; }

  .scrim {
    position: fixed; inset: 0;
    z-index: 40;
    background: rgba(20, 18, 14, .4);
    opacity: 0;
    transition: opacity .25s ease;
  }
  .scrim.show { opacity: 1; }

  .editor-top { padding: 12px 12px 0; }
  .back-btn { display: grid; }
  #titleInput { font-size: 20px; }
  .meta-row { padding: 8px 14px 0; }
  .meta-stats #updatedTime, .meta-stats .dot:last-of-type { display: none; }
  .toolbar { padding: 8px 10px 0; }
  .page-scroll { padding: 10px 10px 18px; }
  .page { padding: 20px 18px 30px; }
}