/* ============================================================
   Daily Work 协作台 — 界面样式
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }

:root {
  --bg: #f3f0e7;
  --bg-elev: #f8f6ef;
  --surface: #fffdf8;
  --surface-2: #f2efe6;
  --surface-3: #eae6da;
  --ink: #232a22;
  --ink-2: #586054;
  --ink-3: #8b9184;
  --line: #e3ded1;
  --line-strong: #d2cbb9;
  --accent: #3d6b4a;
  --accent-ink: #2c5238;
  --accent-soft: #e2ece0;
  --accent-softer: #edf4ea;
  --accent-wash: rgba(61, 107, 74, .08);
  --danger: #b5463b;
  --danger-soft: #f8e8e5;
  --warn: #9a6b24;
  --warn-soft: #f7eedb;
  --code-bg: #f1eee4;
  --code-ink: #7a4a3a;
  --mark-bg: #f4e6a6;
  --link: #2f6b52;
  --link-dark: #2f6b52;
  --shadow-sm: 0 1px 2px rgba(35, 42, 34, .05);
  --shadow-md: 0 10px 30px rgba(35, 42, 34, .10);
  --shadow-lg: 0 24px 70px rgba(28, 34, 27, .20);
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 18px;
  --font-ui: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: "Cascadia Code", "JetBrains Mono", Consolas, "Sarasa Mono SC", "Microsoft YaHei", monospace;
  --font-read: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  --topbar-h: 56px;
  --statusbar-h: 30px;
  --sidebar-w: 278px;

  --cl-tip-bg: #e9f1e4;      --cl-tip-bd: #4d7d59;
  --cl-info-bg: #e8eff5;     --cl-info-bd: #477a9c;
  --cl-warn-bg: #f8f0dd;     --cl-warn-bd: #b07c2e;
  --cl-danger-bg: #f8e8e5;   --cl-danger-bd: #b5463b;
  --cl-success-bg: #e6f1e7;  --cl-success-bd: #3c7b4d;
  --cl-question-bg: #f1eaf6; --cl-question-bd: #7a5a94;
  --cl-example-bg: #eeede8;   --cl-example-bd: #77705f;
  --cl-quote-bg: #f0eee7;    --cl-quote-bd: #918a7a;
  --cl-todo-bg: #e7f0f1;     --cl-todo-bd: #3b7d84;

  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #141815;
  --bg-elev: #181d19;
  --surface: #1c221d;
  --surface-2: #232a24;
  --surface-3: #2b332c;
  --ink: #e7ebe3;
  --ink-2: #aeb8aa;
  --ink-3: #7f8a7d;
  --line: #2b342c;
  --line-strong: #3b463c;
  --accent: #86bd91;
  --accent-ink: #a6d3ae;
  --accent-soft: #26352a;
  --accent-softer: #202b22;
  --accent-wash: rgba(134, 189, 145, .08);
  --danger: #e08a80;
  --danger-soft: #33211e;
  --warn: #d9ab63;
  --warn-soft: #302817;
  --code-bg: #242b25;
  --code-ink: #e5b39a;
  --mark-bg: #5f5121;
  --link: #8fc7ad;

  --cl-tip-bg: #1f2b21;      --cl-tip-bd: #7fb189;
  --cl-info-bg: #1c2830;     --cl-info-bd: #7fa8c4;
  --cl-warn-bg: #2b2416;     --cl-warn-bd: #d0a05a;
  --cl-danger-bg: #2e1d1b;   --cl-danger-bd: #d98077;
  --cl-success-bg: #1c2a1f;  --cl-success-bd: #7dbb8b;
  --cl-question-bg: #261f2c; --cl-question-bd: #b294c9;
  --cl-example-bg: #25241f;  --cl-example-bd: #a49c89;
  --cl-quote-bg: #24241f;    --cl-quote-bd: #9a927f;
  --cl-todo-bg: #1c2829;     --cl-todo-bd: #7ab3b9;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .25);
  --shadow-md: 0 12px 34px rgba(0, 0, 0, .38);
  --shadow-lg: 0 28px 80px rgba(0, 0, 0, .55);

  color-scheme: dark;
}

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow: hidden;
}

button, input, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: var(--link); }
[hidden] { display: none !important; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

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

* { scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--line-strong); border-radius: 999px;
  border: 3px solid transparent; background-clip: content-box;
}
::-webkit-scrollbar-thumb:hover { background: var(--ink-3); background-clip: content-box; border: 3px solid transparent; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ============================================================
   登录页
   ============================================================ */

.login-view {
  position: fixed; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 24px;
  background:
    radial-gradient(900px 520px at 18% 12%, var(--accent-wash), transparent 62%),
    radial-gradient(760px 500px at 88% 88%, rgba(154, 107, 36, .07), transparent 60%),
    var(--bg);
  overflow: auto;
}
.login-view::before {
  content: "";
  position: absolute; inset: 0;
  background-image: radial-gradient(var(--line-strong) .65px, transparent .65px);
  background-size: 22px 22px;
  opacity: .32;
  pointer-events: none;
  mask-image: radial-gradient(600px 420px at 50% 42%, #000 20%, transparent 78%);
}
.login-glow {
  position: absolute; width: 460px; height: 460px; border-radius: 50%;
  background: radial-gradient(circle, var(--accent-wash), transparent 68%);
  filter: blur(10px); pointer-events: none;
}
.login-card {
  position: relative;
  width: min(392px, 100%);
  padding: 38px 34px 26px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow-lg);
  text-align: center;
  animation: card-in .42s cubic-bezier(.2,.8,.25,1) both;
}
@keyframes card-in {
  from { opacity: 0; transform: translateY(12px) scale(.985); }
  to { opacity: 1; transform: none; }
}
.brand-mark {
  display: inline-grid; place-items: center;
  width: 32px; height: 32px;
  background: linear-gradient(145deg, var(--accent), var(--accent-ink));
  color: #fff; font-weight: 800; font-size: 11.5px; letter-spacing: .02em;
  border-radius: 9px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.25), 0 3px 8px rgba(44, 82, 56, .28);
  flex: none;
}
.brand-mark-lg { width: 54px; height: 54px; font-size: 17px; border-radius: 15px; }
.login-card h1 { margin: 18px 0 6px; font-size: 21px; letter-spacing: .01em; }
.login-sub { margin: 0 0 24px; color: var(--ink-2); font-size: 13px; }
.password-wrap { position: relative; }
.password-wrap input {
  width: 100%; height: 48px; padding: 0 62px 0 15px;
  background: var(--bg-elev); border: 1px solid var(--line-strong);
  border-radius: 11px; font-size: 15px; letter-spacing: .08em;
  transition: border-color .15s, box-shadow .15s, background .15s;
}
.password-wrap input::placeholder { color: var(--ink-3); letter-spacing: 0; }
.password-wrap input:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-wash);
  background: var(--surface);
}
.ghost-btn {
  background: none; border: 0; color: var(--ink-3); font-size: 12px;
  padding: 4px 8px; border-radius: 6px;
}
.ghost-btn:hover { color: var(--ink); background: var(--surface-2); }
#togglePassword { position: absolute; right: 8px; top: 50%; transform: translateY(-50%); }
.primary-btn {
  background: var(--accent); color: #fff; border: 1px solid var(--accent);
  border-radius: 10px; padding: 10px 16px; font-weight: 600; font-size: 14px;
  box-shadow: 0 2px 6px rgba(44, 82, 56, .22);
  transition: transform .12s, filter .15s, box-shadow .15s;
}
.primary-btn:hover { filter: brightness(1.06); box-shadow: 0 4px 12px rgba(44, 82, 56, .28); }
.primary-btn:active { transform: translateY(1px); }
.primary-btn:disabled { opacity: .6; cursor: default; transform: none; }
.login-btn { width: 100%; height: 46px; margin-top: 14px; font-size: 14.5px; }
.form-error {
  margin: 14px 0 0; padding: 9px 12px; border-radius: 8px;
  background: var(--danger-soft); color: var(--danger); font-size: 12.5px;
  text-align: left;
}
.login-foot { margin: 22px 0 0; color: var(--ink-3); font-size: 11.5px; line-height: 1.6; }
.login-copy {
  position: relative; margin-top: 24px; color: var(--ink-3);
  font-size: 11.5px; letter-spacing: .06em;
}

/* ============================================================
   应用骨架
   ============================================================ */

.app { display: flex; flex-direction: column; height: 100dvh; height: 100vh; }

.topbar {
  height: var(--topbar-h); flex: none;
  display: flex; align-items: center; gap: 12px;
  padding: 0 14px 0 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  z-index: 20;
}
.brand { display: flex; align-items: center; gap: 8px; min-width: 0; }
.brand-name { font-weight: 700; font-size: 13.5px; letter-spacing: .01em; white-space: nowrap; }
.brand-sub { color: var(--ink-3); font-size: 11px; border-left: 1px solid var(--line-strong); padding-left: 8px; white-space: nowrap; }
.doc-title {
  flex: 1; min-width: 0; margin-left: 4px;
  color: var(--ink-2); font-size: 12.5px; font-weight: 500;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.topbar-right { display: flex; align-items: center; gap: 8px; flex: none; }

.icon-btn {
  width: 32px; height: 32px; display: grid; place-items: center;
  background: transparent; border: 1px solid transparent; border-radius: 8px;
  color: var(--ink-2); font-size: 15px; line-height: 1;
  transition: background .15s, color .15s, border-color .15s;
}
.icon-btn:hover { background: var(--surface-2); color: var(--ink); border-color: var(--line); }

.presence {
  display: inline-flex; align-items: center; gap: 6px;
  height: 28px; padding: 0 10px;
  background: var(--accent-softer); border: 1px solid var(--accent-soft);
  border-radius: 999px; color: var(--accent-ink); font-size: 11.5px; font-weight: 600;
}
.presence-dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-wash);
  animation: pulse 2.6s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .45; } }
.presence-label { color: var(--ink-3); font-weight: 400; }

.save-badge {
  display: inline-flex; align-items: center; gap: 6px;
  height: 28px; padding: 0 10px; border-radius: 999px;
  background: var(--surface-2); border: 1px solid var(--line);
  color: var(--ink-2); font-size: 11.5px; font-weight: 500;
  white-space: nowrap;
}
.save-badge::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--ink-3);
}
.save-badge[data-state="idle"]::before { background: var(--accent); }
.save-badge[data-state="dirty"] { background: var(--warn-soft); border-color: transparent; color: var(--warn); }
.save-badge[data-state="dirty"]::before { background: var(--warn); }
.save-badge[data-state="saving"] { background: var(--warn-soft); border-color: transparent; color: var(--warn); }
.save-badge[data-state="saving"]::before { background: var(--warn); animation: pulse 1s infinite; }
.save-badge[data-state="conflict"], .save-badge[data-state="error"] { background: var(--danger-soft); border-color: transparent; color: var(--danger); }
.save-badge[data-state="conflict"]::before, .save-badge[data-state="error"]::before { background: var(--danger); }

.layout { flex: 1; display: flex; min-height: 0; }

/* ============================================================
   侧边栏
   ============================================================ */

.sidebar {
  width: var(--sidebar-w); flex: none;
  display: flex; flex-direction: column; min-height: 0;
  background: var(--bg-elev);
  border-right: 1px solid var(--line);
  z-index: 15;
}
.sidebar-head {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 16px 14px 8px 18px;
}
.sidebar-title { font-size: 13px; font-weight: 700; letter-spacing: .02em; }
.count {
  display: inline-block; min-width: 20px; padding: 1px 6px; margin-left: 4px;
  background: var(--surface-2); border-radius: 999px;
  color: var(--ink-3); font-size: 10.5px; font-weight: 600; text-align: center;
}
.new-btn {
  height: 27px; padding: 0 9px; border-radius: 7px;
  background: var(--surface); border: 1px solid var(--line-strong);
  color: var(--accent-ink); font-size: 11.5px; font-weight: 600;
  white-space: nowrap; transition: background .15s, border-color .15s;
}
.new-btn:hover { background: var(--accent-softer); border-color: var(--accent); }
.search-wrap { padding: 4px 12px 10px; }
.search-wrap input {
  width: 100%; height: 34px; padding: 0 11px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 8px; font-size: 12.5px; color: var(--ink);
  transition: border-color .15s, box-shadow .15s;
}
.search-wrap input::placeholder { color: var(--ink-3); }
.search-wrap input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-wash); }

.file-list { flex: 1; overflow-y: auto; padding: 2px 8px 18px; }
.month-group { margin-bottom: 6px; }
.month-head {
  position: sticky; top: 0; z-index: 2;
  display: flex; align-items: center; justify-content: space-between;
  padding: 9px 10px 6px;
  background: linear-gradient(var(--bg-elev) 72%, transparent);
  color: var(--ink-3); font-size: 10.5px; font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase;
  backdrop-filter: blur(4px);
}
.month-head .mcount { font-weight: 500; letter-spacing: 0; }
.file-item {
  width: 100%; display: grid; grid-template-columns: 48px minmax(0, 1fr) 8px;
  align-items: center; gap: 8px;
  padding: 8px 9px; margin: 1px 0;
  background: transparent; border: 0; border-radius: 8px;
  text-align: left; color: var(--ink);
  transition: background .13s, box-shadow .13s;
}
.file-item:hover { background: var(--surface-2); }
.file-item.active {
  background: var(--accent-soft);
  box-shadow: inset 3px 0 0 var(--accent);
}
.file-date {
  font-family: var(--font-mono); font-size: 12.5px; font-weight: 600;
  font-variant-numeric: tabular-nums; color: var(--ink);
  white-space: nowrap;
}
.file-item.active .file-date { color: var(--accent-ink); }
.file-info { display: flex; flex-direction: column; gap: 1px; min-width: 0; }
.file-name { font-size: 11.8px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.file-sub { font-size: 10.5px; color: var(--ink-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.file-dot {
  width: 7px; height: 7px; border-radius: 50%; background: transparent;
  justify-self: center;
}
.file-item.updated .file-dot { background: var(--accent); box-shadow: 0 0 0 3px var(--accent-wash); }
.file-item.active .file-dot { background: var(--accent); }
.file-empty { padding: 28px 16px; text-align: center; color: var(--ink-3); font-size: 12px; line-height: 1.7; }
.sidebar-foot {
  flex: none; display: flex; align-items: center; gap: 5px;
  padding: 9px 18px; border-top: 1px solid var(--line);
  color: var(--ink-3); font-size: 10.5px;
  white-space: nowrap; overflow: hidden;
}
.sidebar-foot span { overflow: hidden; text-overflow: ellipsis; }
.dot-sep { color: var(--line-strong); }
.sidebar-backdrop {
  position: fixed; inset: var(--topbar-h) 0 0 0; z-index: 14;
  background: rgba(15, 20, 16, .38); backdrop-filter: blur(2px);
}
.mobile-only { display: none; }

/* ============================================================
   主区域
   ============================================================ */

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; background: var(--bg); }

.doc-toolbar {
  flex: none; height: 46px;
  display: flex; align-items: center; gap: 12px;
  padding: 0 12px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.toolbar-group { display: flex; align-items: center; gap: 1px; min-width: 0; overflow-x: auto; scrollbar-width: none; }
.toolbar-group::-webkit-scrollbar { display: none; }
.toolbar-group button {
  flex: none; min-width: 29px; height: 29px; padding: 0 6px;
  background: transparent; border: 1px solid transparent; border-radius: 7px;
  color: var(--ink-2); font-size: 12px; line-height: 1;
  transition: background .13s, color .13s, border-color .13s;
}
.toolbar-group button:hover { background: var(--surface-2); color: var(--ink); border-color: var(--line); }
.toolbar-group button:active { background: var(--surface-3); }

.view-switch {
  flex: none; margin-left: auto;
  display: flex; align-items: center; gap: 2px;
  padding: 3px; background: var(--surface-2); border-radius: 9px;
}
.view-switch button {
  height: 26px; padding: 0 10px; border: 1px solid transparent; border-radius: 6px;
  background: transparent; color: var(--ink-3); font-size: 11.5px; font-weight: 500;
  transition: background .13s, color .13s, box-shadow .13s;
}
.view-switch button:hover { color: var(--ink); }
.view-switch button.active {
  background: var(--surface); color: var(--ink); box-shadow: var(--shadow-sm);
  border-color: var(--line);
}

.conflict-bar {
  flex: none; display: flex; align-items: center; gap: 8px;
  min-height: 38px; padding: 6px 14px;
  background: var(--warn-soft); color: var(--warn);
  border-bottom: 1px solid rgba(154, 107, 36, .18);
  font-size: 12.5px;
}
.conflict-icon { font-size: 14px; }
.conflict-bar span:nth-child(2) { flex: 1; min-width: 0; }
.conflict-bar button {
  flex: none; height: 26px; padding: 0 11px; border-radius: 7px;
  background: var(--surface); border: 1px solid rgba(154, 107, 36, .35);
  color: var(--warn); font-size: 11.5px; font-weight: 600;
}
.conflict-bar button:hover { background: rgba(255,255,255,.5); }

.doc-workspace { flex: 1; display: flex; min-height: 0; }
.pane { min-width: 0; min-height: 0; }
.editor-pane { flex: 1 1 50%; display: flex; flex-direction: column; background: var(--bg); }
#editor { flex: 1; min-height: 0; }
.preview-pane { flex: 1 1 50%; overflow-y: auto; background: var(--surface); }
.pane-divider {
  flex: none; width: 1px; background: var(--line);
  cursor: col-resize; position: relative; z-index: 3;
}
.pane-divider::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: -4px; right: -4px;
}
.pane-divider:hover, body.resizing .pane-divider { background: var(--accent); }

.doc-workspace.view-edit .preview-pane,
.doc-workspace.view-edit .pane-divider { display: none; }
.doc-workspace.view-preview .editor-pane,
.doc-workspace.view-preview .pane-divider { display: none; }

.statusbar {
  flex: none; height: var(--statusbar-h);
  display: flex; align-items: center; gap: 7px;
  padding: 0 14px;
  background: var(--surface); border-top: 1px solid var(--line);
  color: var(--ink-3); font-size: 10.8px;
  white-space: nowrap; overflow: hidden;
}
.status-file { overflow: hidden; text-overflow: ellipsis; max-width: 40%; }
.status-spacer { flex: 1; }
.conn { display: inline-flex; align-items: center; gap: 5px; }
.conn::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--ink-3); }
.conn.ok::before { background: var(--accent); }
.conn.bad { color: var(--warn); }
.conn.bad::before { background: var(--warn); animation: pulse 1.2s infinite; }

/* 空状态 */
.empty-state {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 40px 24px; text-align: center; color: var(--ink-2);
}
.empty-icon {
  width: 74px; height: 74px; display: grid; place-items: center;
  background: var(--surface); border: 1px solid var(--line); border-radius: 22px;
  font-size: 34px; box-shadow: var(--shadow-sm); margin-bottom: 18px;
}
.empty-state h2 { margin: 0 0 8px; font-size: 18px; color: var(--ink); }
.empty-state p { margin: 0 0 20px; font-size: 13px; line-height: 1.8; color: var(--ink-3); }

/* ============================================================
   CodeMirror
   ============================================================ */

.CodeMirror {
  height: 100%;
  background: transparent;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 13.8px;
  line-height: 1.75;
}
.CodeMirror-lines { padding: 20px 24px 160px; }
.CodeMirror-gutters { background: transparent; border: 0; padding-right: 8px; }
.CodeMirror-linenumber { color: var(--ink-3); opacity: .55; font-size: 10.5px; padding-right: 6px; }
.CodeMirror-cursor { border-left: 2px solid var(--accent); }
.CodeMirror-selected { background: var(--accent-soft) !important; }
.CodeMirror-focused .CodeMirror-selected { background: var(--accent-soft) !important; }
.CodeMirror-activeline-background { background: var(--surface-2); }
.CodeMirror-matchingbracket { color: var(--accent-ink) !important; font-weight: 700; }
.cm-s-default .cm-header { color: var(--accent-ink); font-weight: 700; }
.cm-s-default .cm-quote { color: var(--ink-2); font-style: italic; }
.cm-s-default .cm-link { color: var(--link); }
.cm-s-default .cm-url { color: var(--ink-3); }
.cm-s-default .cm-comment { color: var(--ink-3); }
.cm-s-default .cm-variable-2 { color: var(--ink-2); }
.cm-s-default .cm-formatting { color: var(--ink-3); }
.cm-s-default .cm-strong { color: var(--ink); font-weight: 700; }
.cm-s-default .cm-em { font-style: italic; }
.cm-s-default .cm-strikethrough { text-decoration: line-through; color: var(--ink-3); }
.cm-s-default .cm-keyword { color: var(--code-ink); }
.cm-s-default .cm-string { color: var(--accent-ink); }
.cm-s-default .cm-atom { color: var(--warn); }

/* ============================================================
   Markdown 预览
   ============================================================ */

.markdown-body {
  max-width: 900px; margin: 0 auto;
  padding: 30px 42px 160px;
  font-family: var(--font-read);
  font-size: 15px; line-height: 1.82;
  color: var(--ink);
  overflow-wrap: break-word;
}
.markdown-body > *:first-child { margin-top: 0; }
.markdown-body h1, .markdown-body h2, .markdown-body h3,
.markdown-body h4, .markdown-body h5, .markdown-body h6 {
  font-weight: 700; line-height: 1.35; color: var(--ink);
  margin: 1.55em 0 .65em; letter-spacing: .005em;
}
.markdown-body h1 { font-size: 26px; letter-spacing: -.01em; }
.markdown-body h2 {
  font-size: 20px; padding-bottom: .35em; border-bottom: 1px solid var(--line);
}
.markdown-body h3 { font-size: 16.5px; }
.markdown-body h4 { font-size: 15px; color: var(--ink-2); }
.markdown-body h5, .markdown-body h6 { font-size: 14px; color: var(--ink-2); }
.markdown-body p { margin: 0 0 .95em; }
.markdown-body a { color: var(--link); text-decoration: none; border-bottom: 1px solid transparent; }
.markdown-body a:hover { border-bottom-color: var(--link); }
.markdown-body strong { font-weight: 700; }
.markdown-body em { font-style: italic; }
.markdown-body del { color: var(--ink-3); }
.markdown-body mark { background: var(--mark-bg); color: inherit; padding: .05em .18em; border-radius: 3px; }
.markdown-body ul, .markdown-body ol { margin: 0 0 1em; padding-left: 1.55em; }
.markdown-body li { margin: .28em 0; }
.markdown-body li > p { margin: .25em 0; }
.markdown-body li::marker { color: var(--ink-3); }
.markdown-body blockquote {
  margin: 1em 0; padding: .3em 0 .3em 1.05em;
  border-left: 3px solid var(--line-strong);
  color: var(--ink-2);
}
.markdown-body blockquote p:last-child { margin-bottom: 0; }
.markdown-body hr { border: 0; border-top: 1px solid var(--line); margin: 1.8em 0; }
.markdown-body img { max-width: 100%; height: auto; border-radius: 8px; display: block; margin: 1em 0; }
.markdown-body table {
  border-collapse: collapse; width: 100%; margin: 1.1em 0;
  font-size: 13.5px; display: block; overflow-x: auto;
}
.markdown-body th, .markdown-body td {
  border: 1px solid var(--line); padding: 7px 11px; text-align: left;
  vertical-align: top;
}
.markdown-body th { background: var(--surface-2); font-weight: 600; }
.markdown-body tr:nth-child(even) td { background: var(--bg-elev); }

.markdown-body code {
  font-family: var(--font-mono); font-size: .88em;
  background: var(--code-bg); color: var(--code-ink);
  padding: .12em .38em; border-radius: 4px;
}
.markdown-body pre {
  position: relative; margin: 1em 0; padding: 14px 16px;
  background: var(--code-bg); border: 1px solid var(--line); border-radius: 9px;
  overflow-x: auto; line-height: 1.6;
}
.markdown-body pre code {
  background: none; color: var(--ink); padding: 0; font-size: 12.8px;
}
.copy-code {
  position: absolute; top: 7px; right: 7px;
  height: 24px; padding: 0 8px; border-radius: 6px;
  background: var(--surface); border: 1px solid var(--line);
  color: var(--ink-3); font-size: 10.5px; opacity: 0;
  transition: opacity .15s, color .15s;
}
pre:hover .copy-code { opacity: 1; }
.copy-code:hover { color: var(--ink); }

/* Obsidian callout */
.markdown-body .callout {
  margin: 1.05em 0; padding: 11px 15px 11px 15px;
  background: var(--cl-tip-bg);
  border: 1px solid transparent;
  border-left: 4px solid var(--cl-tip-bd);
  border-radius: 9px; color: var(--ink);
}
.markdown-body .callout > :last-child { margin-bottom: 0; }
.markdown-body .callout-title {
  display: flex; align-items: center; gap: 7px;
  font-size: 13.5px; font-weight: 700; color: var(--cl-tip-bd);
  margin-bottom: 5px;
}
.callout-icon { font-size: 15px; line-height: 1; }
.markdown-body .callout blockquote { border: 0; padding: 0; margin: .5em 0 0; color: var(--ink); }
.callout-note, .callout-info, .callout-abstract, .callout-summary { background: var(--cl-info-bg); border-left-color: var(--cl-info-bd); }
.callout-note .callout-title, .callout-info .callout-title,
.callout-abstract .callout-title, .callout-summary .callout-title { color: var(--cl-info-bd); }
.callout-tip, .callout-hint { background: var(--cl-tip-bg); border-left-color: var(--cl-tip-bd); }
.callout-tip .callout-title, .callout-hint .callout-title { color: var(--cl-tip-bd); }
.callout-warning, .callout-caution, .callout-attention { background: var(--cl-warn-bg); border-left-color: var(--cl-warn-bd); }
.callout-warning .callout-title, .callout-caution .callout-title,
.callout-attention .callout-title { color: var(--cl-warn-bd); }
.callout-danger, .callout-error, .callout-bug, .callout-failure { background: var(--cl-danger-bg); border-left-color: var(--cl-danger-bd); }
.callout-danger .callout-title, .callout-error .callout-title,
.callout-bug .callout-title, .callout-failure .callout-title { color: var(--cl-danger-bd); }
.callout-success, .callout-check, .callout-done { background: var(--cl-success-bg); border-left-color: var(--cl-success-bd); }
.callout-success .callout-title, .callout-check .callout-title,
.callout-done .callout-title { color: var(--cl-success-bd); }
.callout-question, .callout-help, .callout-faq { background: var(--cl-question-bg); border-left-color: var(--cl-question-bd); }
.callout-question .callout-title, .callout-help .callout-title,
.callout-faq .callout-title { color: var(--cl-question-bd); }
.callout-example { background: var(--cl-example-bg); border-left-color: var(--cl-example-bd); }
.callout-example .callout-title { color: var(--cl-example-bd); }
.callout-quote, .callout-cite { background: var(--cl-quote-bg); border-left-color: var(--cl-quote-bd); }
.callout-quote .callout-title, .callout-cite .callout-title { color: var(--cl-quote-bd); }
.callout-todo { background: var(--cl-todo-bg); border-left-color: var(--cl-todo-bd); }
.callout-todo .callout-title { color: var(--cl-todo-bd); }

/* 任务清单 */
.markdown-body .task-list-item { list-style: none; margin-left: -1.25em; padding-left: 1.25em; }
.markdown-body .task-list-item input[type="checkbox"] {
  appearance: none; -webkit-appearance: none;
  width: 15px; height: 15px; margin: 0 7px 0 0; vertical-align: -2px;
  border: 1.5px solid var(--line-strong); border-radius: 4px;
  background: var(--surface); cursor: pointer; position: relative;
  transition: background .14s, border-color .14s;
}
.markdown-body .task-list-item input[type="checkbox"]:hover { border-color: var(--accent); }
.markdown-body .task-list-item input[type="checkbox"]:checked {
  background: var(--accent); border-color: var(--accent);
}
.markdown-body .task-list-item input[type="checkbox"]:checked::after {
  content: ""; position: absolute; left: 4px; top: 1px;
  width: 4px; height: 8px;
  border: solid #fff; border-width: 0 2px 2px 0;
  transform: rotate(42deg);
}
.markdown-body .task-list-item.task-done { color: var(--ink-3); }
.markdown-body .task-list-item.task-done p,
.markdown-body .task-list-item.task-done { text-decoration: line-through; text-decoration-color: var(--line-strong); }
.markdown-body .task-list-item.task-done .callout,
.markdown-body .task-list-item.task-done ul { text-decoration: none; }

/* 双链与高亮 */
.wikilink, .embed {
  color: var(--accent-ink); background: var(--accent-softer);
  border-bottom: 1px dashed var(--accent);
  padding: 0 2px; border-radius: 3px;
}
.embed { color: var(--ink-2); background: var(--surface-2); border-bottom-color: var(--line-strong); }

/* 元数据卡片 */
.meta-card {
  background: var(--surface-2);
  border: 1px solid var(--line); border-radius: 11px;
  padding: 13px 16px; margin: 0 0 24px;
  font-size: 12.5px; line-height: 1.6;
}
.meta-top { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.meta-date {
  font-family: var(--font-mono); font-size: 13px; font-weight: 700;
  color: var(--accent-ink); letter-spacing: .02em;
}
.meta-pill {
  padding: 1px 8px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--line);
  color: var(--ink-2); font-size: 10.5px; font-weight: 500;
}
.meta-pill.status { color: var(--accent-ink); border-color: var(--accent-soft); background: var(--accent-softer); }
.meta-focus { margin-top: 8px; color: var(--ink-2); }
.meta-focus strong { color: var(--ink); }
.meta-chips { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 8px; }
.meta-chip {
  padding: 1px 8px; border-radius: 6px;
  background: var(--surface); border: 1px solid var(--line);
  color: var(--ink-2); font-size: 10.5px;
}

/* ============================================================
   提示条 / 弹窗 / 表单
   ============================================================ */

.toasts {
  position: fixed; right: 18px; bottom: 44px; z-index: 200;
  display: flex; flex-direction: column; align-items: flex-end; gap: 8px;
  pointer-events: none;
}
.toast {
  max-width: min(360px, calc(100vw - 36px));
  padding: 10px 14px;
  background: var(--surface); border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 10px; box-shadow: var(--shadow-md);
  color: var(--ink); font-size: 12.5px; line-height: 1.55;
  pointer-events: auto;
  animation: toast-in .22s cubic-bezier(.2,.8,.25,1) both;
}
.toast.error { border-left-color: var(--danger); }
.toast.success { border-left-color: var(--accent); }
.toast.info { border-left-color: var(--cl-info-bd); }
.toast.leaving { animation: toast-out .18s ease both; }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px) scale(.98); } to { opacity: 1; transform: none; } }
@keyframes toast-out { to { opacity: 0; transform: translateY(5px) scale(.98); } }

.modal-backdrop {
  position: fixed; inset: 0; z-index: 100;
  display: grid; place-items: center;
  padding: 20px;
  background: rgba(20, 25, 21, .42);
  backdrop-filter: blur(4px);
  animation: fade-in .16s ease both;
}
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
.modal {
  width: min(460px, calc(100vw - 32px));
  max-height: calc(100dvh - 40px); overflow-y: auto;
  padding: 22px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
  animation: modal-in .2s cubic-bezier(.2,.8,.25,1) both;
}
.modal.wide { width: min(560px, calc(100vw - 32px)); }
@keyframes modal-in { from { opacity: 0; transform: translateY(10px) scale(.985); } to { opacity: 1; transform: none; } }
.modal h3 { margin: 0 0 6px; font-size: 17px; }
.modal .modal-sub { margin: 0 0 18px; color: var(--ink-3); font-size: 12.5px; line-height: 1.65; }
.modal label.field { display: block; margin: 12px 0; }
.modal label.field span { display: block; margin-bottom: 6px; color: var(--ink-2); font-size: 12px; font-weight: 500; }
.modal input[type="date"], .modal input[type="text"] {
  width: 100%; height: 40px; padding: 0 11px;
  background: var(--bg-elev); border: 1px solid var(--line-strong);
  border-radius: 8px; font-size: 13.5px;
}
.modal input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-wash); }
.modal-hint {
  margin: 12px 0 0; padding: 9px 11px;
  background: var(--surface-2); border-radius: 8px;
  color: var(--ink-3); font-size: 11.5px; line-height: 1.6;
  overflow-wrap: anywhere;
}
.modal-hint code { font-family: var(--font-mono); color: var(--ink-2); }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 20px; }
.modal-actions .secondary-btn {
  height: 36px; padding: 0 14px; border-radius: 8px;
  background: var(--surface); border: 1px solid var(--line-strong); color: var(--ink-2);
  font-size: 12.5px;
}
.modal-actions .secondary-btn:hover { background: var(--surface-2); color: var(--ink); }
.modal-actions .primary-btn { height: 36px; font-size: 12.5px; }
.modal-actions .danger-btn {
  height: 36px; padding: 0 14px; border-radius: 8px;
  background: var(--danger); border: 1px solid var(--danger); color: #fff;
  font-size: 12.5px; font-weight: 600;
}
.modal-actions .danger-btn:hover { filter: brightness(1.06); }
.conflict-list { margin: 12px 0 0; padding: 12px 14px; background: var(--surface-2); border-radius: 9px; font-size: 12px; line-height: 1.7; color: var(--ink-2); }
.conflict-list strong { color: var(--ink); }
.conflict-list code { font-family: var(--font-mono); font-size: 11.5px; color: var(--accent-ink); }

/* ============================================================
   响应式
   ============================================================ */

@media (max-width: 900px) {
  .brand-sub { display: none; }
  .markdown-body { padding: 26px 30px 140px; }
}

@media (max-width: 860px) {
  .mobile-only { display: grid; }
  .sidebar {
    position: fixed; top: var(--topbar-h); bottom: 0; left: 0;
    width: min(84vw, 300px);
    transform: translateX(-102%);
    transition: transform .22s cubic-bezier(.2,.8,.25,1);
    box-shadow: var(--shadow-lg);
  }
  .sidebar.open { transform: none; }
  .topbar { gap: 8px; padding-left: 8px; }
  .brand-name { display: none; }
  .doc-title { font-size: 12px; }
  .presence-label { display: none; }
  .doc-toolbar { padding: 0 8px; gap: 8px; }
  .toolbar-group { gap: 0; }
  .toolbar-group button { min-width: 27px; height: 27px; padding: 0 4px; }
  .view-switch button { padding: 0 8px; }
  .markdown-body { padding: 22px 20px 150px; font-size: 14.6px; }
  .CodeMirror-lines { padding: 16px 14px 160px; }
  .status-file { display: none; }
  .toasts { right: 12px; bottom: 40px; }
  /* 手机端“分栏”退化为编辑视图，切换按钮可单独看预览 */
  .doc-workspace.view-split .preview-pane,
  .doc-workspace.view-split .pane-divider { display: none; }
}

@media (max-width: 560px) {
  .topbar-right { gap: 4px; }
  .save-badge { padding: 0 8px; font-size: 10.5px; }
  .presence { padding: 0 7px; }
  .doc-title { display: none; }
  .view-switch button { padding: 0 6px; font-size: 10.5px; }
  .statusbar { gap: 5px; padding: 0 9px; font-size: 10px; }
  #statusSaved { max-width: 110px; overflow: hidden; text-overflow: ellipsis; }
  .login-card { padding: 30px 22px 22px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}