/* AI行政助手 V2.0 — 主题：侘寂（默认）/ 素白 / 星夜 */

/* 汉仪雅酷黑：各档独立 family，避免 weight 映射不准 */
@font-face {
  font-family: "HYYaKuHei-55";
  src: url("assets/汉仪雅酷黑-55.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "HYYaKuHei-65";
  src: url("assets/汉仪雅酷黑-65.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "HYYaKuHei-75";
  src: url("assets/汉仪雅酷黑-75.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "HYYaKuHei-85";
  src: url("assets/汉仪雅酷黑-85.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Nolinga";
  src: url("assets/Nolinga.otf") format("opentype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root,
[data-theme="wabi"] {
  color-scheme: light;
  --cement-deep: #6e6d68;
  --cement: #8f8e89;
  --cement-mid: #a3a29c;
  --cement-light: #b8b7b1;
  --cement-mist: #cbcac4;
  --cement-fog: #dddcd6;
  --ink: #2e2e2b;
  --ink-soft: #5c5c57;
  --ink-faint: #7a7a74;
  --paper: #e8e7e1;
  --paper-hot: #f0efe9;
  --line: rgba(46, 46, 43, 0.1);
  --line-strong: rgba(46, 46, 43, 0.18);
  --btn-background: rgba(138, 158, 134, 0.22);
  --btn-color: #3a3a36;
  --glow: rgba(240, 239, 233, 0.45);
  /* 低对比水泥灰阶，避免黑白命理图感 */
  --yang: #dddcd6;
  --yin: #6e6d68;
  --accent: #7a7568;
  --danger-soft: #8a6a5a;
  /* 中轨表面：侘寂为深水泥；素白覆写为浅灰；星夜为深透黑 */
  --rail-surface: #6e6d68;
  --rail-foot-line: rgba(240, 239, 233, 0.08);
  --pane-gradient: linear-gradient(180deg, var(--paper-hot) 0%, var(--paper) 100%);
  --shell-edge: rgba(46, 46, 43, 0.14);
  --chat-sky: transparent;
  /* 半透明霜面：星夜覆写为暗透，避免浅底+浅字/近同明度 */
  --frost-40: rgba(255, 255, 255, 0.4);
  --frost-45: rgba(255, 255, 255, 0.45);
  --frost-55: rgba(255, 255, 255, 0.55);
  --frost-70: rgba(255, 255, 255, 0.7);
  --frost-72: rgba(255, 255, 255, 0.72);
  --hover-wash: rgba(240, 239, 233, 0.85);
  --active-wash: rgba(240, 239, 233, 0.95);
  /* 瞬移竖线：浅科技蓝（同族青蓝，透明度低于旧版；起落同色） */
  --warp-streak-tip: rgba(180, 220, 245, 0.1);
  --warp-streak-core: rgba(120, 180, 225, 0.62);
  --warp-streak-mid: rgba(160, 210, 240, 0.34);
  --warp-streak-glow: rgba(120, 180, 225, 0.16);

  --rail-width: 52px;
  --drawer-section-width: 112px;
  --left-ratio: 40%;
  --radius: 8px;
  --radius-sm: 4px;

  --font-display: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", sans-serif;
  --font-body: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", sans-serif;

  --shadow-soft: 0 8px 28px rgba(46, 46, 43, 0.08);
  --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 素白：奶白主面 + 浅中轨 + 低饱和多色色条 */
[data-theme="su"] {
  color-scheme: light;
  --cement-deep: #5c5c57;
  --cement: #8a8a84;
  --cement-mid: #a3a39c;
  --cement-light: #c4c3bd;
  --cement-mist: #8a8a84;
  --cement-fog: #edece7;
  --ink: #3a3a36;
  --ink-soft: #6e6e68;
  --ink-faint: #8a8a84;
  --paper: #f2f1ed;
  --paper-hot: #faf9f6;
  --line: rgba(58, 58, 54, 0.08);
  --line-strong: rgba(58, 58, 54, 0.14);
  --btn-background: rgba(138, 158, 134, 0.22);
  --btn-color: #3a3a36;
  --glow: transparent;
  --yang: #e4e3de;
  --yin: #6a6a64;
  --accent: #6e6e68;
  --danger-soft: #a07868;
  --rail-surface: #e8e7e2;
  --rail-foot-line: rgba(58, 58, 54, 0.1);
  --pane-gradient: none;
  --shell-edge: rgba(58, 58, 54, 0.12);
  --chat-sky: transparent;
  --frost-40: rgba(255, 255, 255, 0.5);
  --frost-45: rgba(255, 255, 255, 0.55);
  --frost-55: rgba(255, 255, 255, 0.65);
  --frost-70: rgba(255, 255, 255, 0.78);
  --frost-72: rgba(255, 255, 255, 0.8);
  --hover-wash: rgba(242, 241, 237, 0.9);
  --active-wash: rgba(250, 249, 246, 0.95);
  --warp-streak-tip: rgba(170, 215, 240, 0.08);
  --warp-streak-core: rgba(110, 172, 218, 0.56);
  --warp-streak-mid: rgba(150, 205, 235, 0.3);
  --warp-streak-glow: rgba(110, 172, 218, 0.12);
  --radius: 6px;
  --radius-sm: 4px;
  --shadow-soft: 0 1px 0 rgba(58, 58, 54, 0.06);
}

/* 星夜：藏青底（勿死黑）+ 深中轨多色 + 左栏星空 */
[data-theme="night"] {
  color-scheme: dark;
  --cement-deep: #c4c2ba;
  --cement: #9a9890;
  --cement-mid: #6e6c66;
  --cement-light: #4a4844;
  --cement-mist: #9a9890;
  --cement-fog: #243248;
  --ink: #e8e6e0;
  --ink-soft: #b0aea6;
  --ink-faint: #8a8880;
  --paper: #141f36;
  --paper-hot: #1c2b48;
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.15);
  --btn-background: rgba(34, 34, 44, 0.88);
  --btn-color: #9a9890;
  --glow: rgba(160, 190, 230, 0.14);
  --yang: #c8c6c0;
  --yin: #2a3850;
  --accent: #a8a69e;
  --danger-soft: #c09080;
  --rail-surface: #121a30;
  --rail-foot-line: rgba(255, 255, 255, 0.09);
  --pane-gradient: none;
  --shell-edge: rgba(255, 255, 255, 0.09);
  --chat-sky: #0e1830;
  --rail-glass: rgba(8, 16, 36, 0.62);
  --frost-40: rgba(255, 255, 255, 0.08);
  --frost-45: rgba(255, 255, 255, 0.1);
  --frost-55: rgba(255, 255, 255, 0.12);
  --frost-70: rgba(255, 255, 255, 0.16);
  --frost-72: rgba(255, 255, 255, 0.14);
  --hover-wash: rgba(255, 255, 255, 0.1);
  --active-wash: rgba(255, 255, 255, 0.14);
  /* 星夜浅科技蓝，略提亮以便藏青底可读 */
  --warp-streak-tip: rgba(190, 230, 255, 0.12);
  --warp-streak-core: rgba(130, 190, 235, 0.72);
  --warp-streak-mid: rgba(165, 215, 245, 0.4);
  --warp-streak-glow: rgba(130, 190, 235, 0.2);
  --radius: 6px;
  --radius-sm: 4px;
  --shadow-soft: 0 8px 28px rgba(8, 16, 36, 0.4);
}

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

html, body {
  height: 100%;
  width: 100%;
  overflow: hidden;
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  /* 与中轨同色兜底：非整数 DPR 下合成边缘透色时，浅缝不再显形 */
  background: var(--rail-surface);
  -webkit-font-smoothing: antialiased;
}

button, textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

/* —— Shell: 左 40 / 中轨定宽 / 右剩余（贴齐视口，无四周 body 留白） —— */
.app-shell {
  display: flex;
  align-items: stretch;
  width: 100%;
  height: 100%;
  padding: 0;
  gap: 0;
  position: relative;
  background: var(--rail-surface);
}

/* 顶沿一条贯通三列的细线：避免「浅区有浅灰线、深区没有」的不对称 AA；与下沿整行灰线观感对齐 */
.app-shell::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: var(--shell-edge);
  pointer-events: none;
  z-index: 60;
}

.chat-pane {
  width: var(--left-ratio);
  min-width: 320px;
  max-width: 560px;
  flex-shrink: 0;
  align-self: stretch;
  display: flex;
  flex-direction: column;
  background-color: var(--paper-hot);
  background-image: var(--pane-gradient);
  border: none;
  border-radius: 0;
  overflow: hidden;
  position: relative;
  /* 顶/底实色盖住与视口交界的 AA：浅区不再显浅灰线 */
  box-shadow:
    inset 0 1px 0 0 var(--paper-hot),
    inset 0 -1px 0 0 var(--paper);
  transition:
    width 0.38s cubic-bezier(0.4, 0, 0.2, 1),
    min-width 0.38s cubic-bezier(0.4, 0, 0.2, 1),
    max-width 0.38s cubic-bezier(0.4, 0, 0.2, 1),
    box-shadow var(--transition);
}

/* 星夜左栏：与右栏同底（--paper-hot），仅叠星点/星雾 */
[data-theme="night"] .chat-pane {
  background-color: var(--paper-hot);
  background-image: none;
  box-shadow:
    inset 0 1px 0 0 var(--paper-hot),
    inset 0 -1px 0 0 var(--paper);
}

[data-theme="night"] .chat-pane::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 90% 60% at 50% 35%, rgba(48, 72, 110, 0.3), transparent 70%),
    radial-gradient(1px 1px at 12% 18%, rgba(255, 255, 255, 0.55), transparent),
    radial-gradient(1px 1px at 28% 42%, rgba(255, 255, 255, 0.35), transparent),
    radial-gradient(1.5px 1.5px at 44% 12%, rgba(255, 255, 255, 0.5), transparent),
    radial-gradient(1px 1px at 62% 28%, rgba(255, 255, 255, 0.3), transparent),
    radial-gradient(1px 1px at 78% 16%, rgba(255, 255, 255, 0.45), transparent),
    radial-gradient(1px 1px at 88% 38%, rgba(255, 255, 255, 0.28), transparent),
    radial-gradient(1.5px 1.5px at 18% 68%, rgba(255, 255, 255, 0.4), transparent),
    radial-gradient(1px 1px at 36% 78%, rgba(255, 255, 255, 0.32), transparent),
    radial-gradient(1px 1px at 54% 58%, rgba(255, 255, 255, 0.48), transparent),
    radial-gradient(1px 1px at 70% 72%, rgba(255, 255, 255, 0.26), transparent),
    radial-gradient(1.5px 1.5px at 84% 64%, rgba(255, 255, 255, 0.42), transparent),
    radial-gradient(1px 1px at 8% 88%, rgba(255, 255, 255, 0.3), transparent),
    radial-gradient(1px 1px at 48% 92%, rgba(255, 255, 255, 0.22), transparent),
    radial-gradient(1px 1px at 92% 86%, rgba(255, 255, 255, 0.38), transparent),
    radial-gradient(1px 1px at 22% 52%, rgba(255, 255, 255, 0.2), transparent),
    radial-gradient(1px 1px at 66% 48%, rgba(255, 255, 255, 0.34), transparent);
  opacity: 0.85;
}

[data-theme="night"] .chat-pane > * {
  position: relative;
  z-index: 1;
}

.chat-pane.is-drop-target-active {
  box-shadow:
    inset 0 1px 0 0 var(--paper-hot),
    inset 0 -1px 0 0 var(--paper),
    inset 0 0 0 1px var(--line-strong);
}

.chat-pane.is-drag-over {
  box-shadow:
    inset 0 1px 0 0 var(--paper-hot),
    inset 0 -1px 0 0 var(--paper),
    inset 0 0 0 2px var(--ink-soft);
}

/* 左栏收合：贴中轨缝的悬停三角 / 层叠 chevron（非传统折叠钮） */
.chat-fold-rail {
  position: relative;
  width: 0;
  flex-shrink: 0;
  align-self: stretch;
  /* 低于中轨飞出层；展开态钮只在左栏，勿盖轨 */
  z-index: 5;
  pointer-events: none;
}

.chat-fold-rail::before {
  /* 热区只在左栏内侧，勿侵入中轨 */
  content: '';
  position: absolute;
  left: -22px;
  top: 0;
  bottom: 0;
  width: 22px;
  pointer-events: auto;
}

.chat-fold-btn {
  position: absolute;
  /* 右缘贴缝（0），整钮 22px 落在左栏内 */
  left: -22px;
  top: 50%;
  transform: translateY(-50%) translateX(-4px);
  width: 22px;
  height: 56px;
  padding: 0;
  margin: 0;
  border: none;
  border-radius: 10px 0 0 10px;
  background: color-mix(in srgb, var(--paper-hot) 88%, var(--cement-fog));
  color: var(--ink-faint);
  box-shadow:
    -1px 0 0 0 var(--line),
    inset 1px 0 0 0 color-mix(in srgb, var(--paper-hot) 70%, transparent);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 0.22s ease,
    transform 0.28s cubic-bezier(0.4, 0, 0.2, 1),
    color 0.2s ease,
    background 0.2s ease,
    box-shadow 0.2s ease;
}

.chat-fold-rail:hover .chat-fold-btn,
.chat-fold-btn:focus-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(-50%) translateX(0);
}

.chat-fold-btn:hover,
.chat-fold-btn:focus-visible {
  color: var(--ink-soft);
  background: color-mix(in srgb, var(--paper-hot) 92%, var(--cement-mist));
}

.chat-fold-btn:focus-visible {
  outline: 1px solid var(--line-strong);
  outline-offset: 2px;
}

.chat-fold-chevrons {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 0;
  width: 14px;
  height: 18px;
}

/* SVG 折线三角：默认朝左（收起） */
.chat-fold-chev {
  display: block;
  flex-shrink: 0;
  opacity: 0.35;
  transform: translateX(0);
  overflow: visible;
}

/* 默认指向左（收起）；层叠三角错峰呼吸 */
@keyframes chat-fold-chev-pulse {
  0%,
  100% {
    opacity: 0.28;
    transform: translateX(0);
  }
  45% {
    opacity: 1;
    transform: translateX(-3px);
  }
}

.chat-fold-rail:hover .chat-fold-chev:nth-child(1),
.chat-fold-btn:focus-visible .chat-fold-chev:nth-child(1) {
  animation: chat-fold-chev-pulse 1s ease-in-out infinite;
}

.chat-fold-rail:hover .chat-fold-chev:nth-child(2),
.chat-fold-btn:focus-visible .chat-fold-chev:nth-child(2) {
  animation: chat-fold-chev-pulse 1s ease-in-out 0.14s infinite;
}

.chat-fold-rail:hover .chat-fold-chev:nth-child(3),
.chat-fold-btn:focus-visible .chat-fold-chev:nth-child(3) {
  animation: chat-fold-chev-pulse 1s ease-in-out 0.28s infinite;
}

/* 收起态：只收左栏；展开热区绝对贴中轨右缝（不改 flex order，避免展开错乱） */
.app-shell.is-chat-collapsed .chat-pane {
  width: 0;
  min-width: 0;
  max-width: 0;
  /* 仅裁切隐藏；勿 opacity/visibility，展开时易闪黑 */
  overflow: hidden;
  pointer-events: none;
  border: none;
  box-shadow: none;
}

.app-shell.is-chat-collapsed .chat-fold-rail {
  position: absolute;
  left: var(--rail-width);
  top: 0;
  bottom: 0;
  width: 0;
  /* 与展开态同级，勿抬高盖住轨面 */
  z-index: 5;
  background: transparent;
  box-shadow: none;
}

.app-shell.is-chat-collapsed .chat-fold-rail::before {
  /* 热区只在中轨右侧（右栏内侧），勿侵入中轨 */
  left: 0;
  width: 22px;
}

.app-shell.is-chat-collapsed .chat-fold-btn {
  /* 左缘贴缝（0），整钮 22px 落在右栏；显隐往右滑，镜像左侧逻辑 */
  left: 0;
  width: 22px;
  border-radius: 0 10px 10px 0;
  transform: translateY(-50%) translateX(4px);
  background: color-mix(in srgb, var(--paper-hot) 88%, var(--cement-fog));
  color: var(--ink-faint);
  box-shadow:
    1px 0 0 0 var(--line),
    inset -1px 0 0 0 color-mix(in srgb, var(--paper-hot) 70%, transparent);
}

.app-shell.is-chat-collapsed .chat-fold-rail:hover .chat-fold-btn,
.app-shell.is-chat-collapsed .chat-fold-btn:focus-visible {
  transform: translateY(-50%) translateX(0);
}

.app-shell.is-chat-collapsed .chat-fold-btn:hover,
.app-shell.is-chat-collapsed .chat-fold-btn:focus-visible {
  color: var(--ink-soft);
  background: color-mix(in srgb, var(--paper-hot) 92%, var(--cement-mist));
}

.app-shell.is-chat-collapsed .chat-fold-chevrons {
  transform: scaleX(-1);
}

[data-theme="night"] .chat-fold-btn {
  background: color-mix(in srgb, var(--paper-hot) 75%, #1a2230);
  color: rgba(220, 228, 240, 0.55);
  box-shadow:
    -1px 0 0 0 rgba(255, 255, 255, 0.06),
    inset 1px 0 0 0 rgba(255, 255, 255, 0.04);
}

[data-theme="night"] .app-shell.is-chat-collapsed .chat-fold-btn {
  background: color-mix(in srgb, var(--paper-hot) 75%, #1a2230);
  color: rgba(220, 228, 240, 0.55);
  box-shadow:
    1px 0 0 0 rgba(255, 255, 255, 0.06),
    inset -1px 0 0 0 rgba(255, 255, 255, 0.04);
}

.chat-mid {
  flex: 1;
  min-height: 0;
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.taiji-stage {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 8px 8px 4px;
  position: relative;
  min-height: 0;
  overflow: visible;
}

.taiji-spin {
  position: relative;
  width: min(96%, 360px);
  aspect-ratio: 1;
  flex-shrink: 0;
}

/* 扩大星轨盘：托住盘上 8 星体入口 */
.taiji-disc {
  position: absolute;
  inset: 3%;
  z-index: 1;
  pointer-events: none;
  border-radius: 50%;
  overflow: hidden;
}

/* 弱引用：水墨意向极淡垫底（透明底 PNG）；可极慢顺时针，远慢于星轨 */
.taiji-disc::before {
  content: '';
  position: absolute;
  inset: -2%;
  z-index: 0;
  border-radius: 50%;
  background: url('./assets/taiji-ink-wash.png') center 46% / 88% no-repeat;
  opacity: 0.1;
  filter: contrast(1.05) brightness(1.0);
  mix-blend-mode: multiply;
  pointer-events: none;
  transform-origin: 50% 50%;
  animation: taiji-ink-spin 160s linear infinite;
}

[data-theme="night"] .taiji-disc::before {
  opacity: 0.08;
  filter: invert(1) contrast(1.02) brightness(0.9);
  mix-blend-mode: soft-light;
}

/* 盘心数字人：在星轨之下；静立降饱和融入水泥灰；可点（disc 本身 pointer-events:none） */
.taiji-avatar-btn {
  position: absolute;
  z-index: 1;
  left: 50%;
  top: 50%;
  width: 32%;
  aspect-ratio: 1;
  padding: 0;
  border: none;
  border-radius: 0;
  background: transparent;
  transform: translate(-50%, -50%);
  cursor: pointer;
  pointer-events: auto;
  appearance: none;
  -webkit-appearance: none;
}

.taiji-avatar-btn:focus-visible {
  outline: 2px solid var(--ink-soft);
  outline-offset: 4px;
}

.taiji-avatar-stack {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 1;
  isolation: isolate;
  /* 色彩落在容器上，与盘面 multiply / soft-light */
  opacity: 0.9;
  filter: none;
  mix-blend-mode: multiply;
}

.taiji-avatar {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  object-fit: contain;
  pointer-events: none;
  user-select: none;
  -webkit-user-drag: none;
  opacity: 1;
  filter: none;
  mix-blend-mode: normal;
}

[data-theme="su"] .taiji-avatar-stack {
  opacity: 0.88;
  filter: none;
}

[data-theme="night"] .taiji-avatar-stack {
  opacity: 0.72;
  filter: brightness(1.08) contrast(1.02);
  mix-blend-mode: soft-light;
}

/* 飞出：桌宠态 — 仅自身可点可拖，不挡其它操作 */
.taiji-avatar-btn.is-free {
  position: absolute;
  width: 140px;
  height: auto;
  aspect-ratio: 1;
  left: 0;
  top: 0;
  bottom: auto;
  right: auto;
  transform: none;
  z-index: 28;
  cursor: grab;
  touch-action: none;
  filter: drop-shadow(0 8px 14px rgba(46, 46, 43, 0.14));
}

.taiji-avatar-btn.is-free.is-dragging {
  cursor: grabbing;
  z-index: 29;
}

/* 缩放中：用 transform scale，关掉 drop-shadow 减轻重绘抖动 */
.taiji-avatar-btn.is-free.is-resizing {
  z-index: 29;
  filter: none;
  will-change: transform;
}

.taiji-avatar-btn.is-free .taiji-avatar-stack {
  /* 与盘心静立同一套色彩 */
  opacity: 0.9;
  filter: none;
  mix-blend-mode: multiply;
}

[data-theme="su"] .taiji-avatar-btn.is-free .taiji-avatar-stack {
  opacity: 0.88;
  filter: none;
}

[data-theme="night"] .taiji-avatar-btn.is-free {
  filter: drop-shadow(0 10px 18px rgba(0, 0, 0, 0.4));
}

[data-theme="night"] .taiji-avatar-btn.is-free .taiji-avatar-stack {
  opacity: 0.72;
  filter: brightness(1.08) contrast(1.02);
  mix-blend-mode: soft-light;
}

/* 桌宠角钮：关闭 / 缩放共用半透明圆钮 */
.taiji-avatar-fab {
  display: none;
  position: absolute;
  z-index: 2;
  width: 22px;
  height: 22px;
  margin: 0;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(46, 46, 43, 0.38);
  color: rgba(255, 255, 255, 0.92);
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  appearance: none;
  -webkit-appearance: none;
  transition: opacity 0.15s ease, background 0.15s ease;
}

.taiji-avatar-fab svg {
  display: block;
  pointer-events: none;
}

.taiji-avatar-close {
  top: 2px;
  right: 2px;
  cursor: pointer;
}

.taiji-avatar-scale {
  right: 2px;
  bottom: 2px;
  cursor: nwse-resize;
  touch-action: none;
}

.taiji-avatar-btn.is-free .taiji-avatar-fab {
  display: inline-flex;
}

.taiji-avatar-btn.is-free:hover .taiji-avatar-fab,
.taiji-avatar-btn.is-free:focus-within .taiji-avatar-fab,
.taiji-avatar-btn.is-free .taiji-avatar-fab:focus-visible,
.taiji-avatar-btn.is-free.is-resizing .taiji-avatar-scale {
  opacity: 0.72;
  pointer-events: auto;
}

.taiji-avatar-btn.is-free .taiji-avatar-fab:hover,
.taiji-avatar-btn.is-free .taiji-avatar-fab:focus-visible,
.taiji-avatar-btn.is-free.is-resizing .taiji-avatar-scale {
  opacity: 0.92;
  background: rgba(46, 46, 43, 0.55);
}

.taiji-avatar-btn.is-free.is-dragging .taiji-avatar-fab,
.taiji-avatar-btn.is-free.is-resizing .taiji-avatar-close {
  opacity: 0;
  pointer-events: none;
}

[data-theme="night"] .taiji-avatar-fab {
  background: rgba(232, 231, 225, 0.28);
  color: rgba(16, 28, 48, 0.9);
}

[data-theme="night"] .taiji-avatar-btn.is-free .taiji-avatar-fab:hover,
[data-theme="night"] .taiji-avatar-btn.is-free .taiji-avatar-fab:focus-visible,
[data-theme="night"] .taiji-avatar-btn.is-free.is-resizing .taiji-avatar-scale {
  background: rgba(232, 231, 225, 0.48);
}

.taiji-avatar-btn.is-animating {
  pointer-events: none;
  will-change: transform, opacity;
}

/* 瞬移传送 FX：浅科技蓝竖粒子（无圆扩散、无雾状、不挡操作；色随主题 token） */
.taiji-warp-fx {
  position: fixed;
  z-index: 39;
  pointer-events: none;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  overflow: visible;
}

.taiji-warp-fx.is-streaks {
  border-radius: 0;
}

.taiji-warp-streak {
  position: absolute;
  left: var(--x, 50%);
  top: 50%;
  width: var(--thick, 2px);
  height: var(--len, 28px);
  margin: 0;
  border-radius: 1px;
  pointer-events: none;
  opacity: 0;
  transform: translate(-50%, -50%);
  will-change: transform, opacity;
  background: linear-gradient(
    180deg,
    transparent 0%,
    var(--warp-streak-tip) 12%,
    var(--warp-streak-core) 48%,
    var(--warp-streak-mid) 78%,
    transparent 100%
  );
  box-shadow: 0 0 3px var(--warp-streak-glow);
}

.taiji-warp-fx.is-depart.is-run .taiji-warp-streak.is-up {
  animation: taiji-warp-streak-depart-up var(--dur, 320ms) cubic-bezier(0.15, 0, 1, 1) var(--delay, 0ms) forwards;
}

.taiji-warp-fx.is-depart.is-run .taiji-warp-streak.is-down {
  animation: taiji-warp-streak-depart-down var(--dur, 320ms) cubic-bezier(0.15, 0, 1, 1) var(--delay, 0ms) forwards;
}

.taiji-warp-fx.is-arrive.is-run .taiji-warp-streak.is-up {
  animation: taiji-warp-streak-arrive-up var(--dur, 340ms) cubic-bezier(0.2, 0.1, 0.2, 1) var(--delay, 0ms) forwards;
}

.taiji-warp-fx.is-arrive.is-run .taiji-warp-streak.is-down {
  /* 降落：同位置向下射出（与起飞对称） */
  animation: taiji-warp-streak-depart-down var(--dur, 340ms) cubic-bezier(0.15, 0, 1, 1) var(--delay, 0ms) forwards;
}

/* 起飞：自躯干高速向上 / 向下射出消散 */
@keyframes taiji-warp-streak-depart-up {
  0% {
    opacity: 0.95;
    transform: translate(-50%, -50%) translateY(0);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) translateY(calc(var(--dist, 120px) * -1));
  }
}

@keyframes taiji-warp-streak-depart-down {
  0% {
    opacity: 0.95;
    transform: translate(-50%, -50%) translateY(0);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) translateY(var(--dist, 120px));
  }
}

/* 降落：自外高速汇入中心再消隐 */
@keyframes taiji-warp-streak-arrive-up {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) translateY(var(--dist, 120px));
  }
  28% { opacity: 0.95; }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) translateY(0);
  }
}

@keyframes taiji-warp-streak-arrive-down {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) translateY(calc(var(--dist, 120px) * -1));
  }
  28% { opacity: 0.95; }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) translateY(0);
  }
}

/* 星夜：桌宠挂在 app-shell 下，不受 chat-pane > * 的 relative 影响 */
[data-theme="night"] .app-shell > .taiji-avatar-btn.is-free {
  position: absolute;
  z-index: 28;
}

[data-theme="night"] .app-shell > .taiji-avatar-btn.is-free.is-dragging {
  z-index: 29;
}

[data-theme="night"] .taiji-glow {
  opacity: 0.18;
  filter: blur(18px);
}

@keyframes taiji-ink-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.taiji-trails {
  position: relative;
  z-index: 2;
  display: block;
  width: 100%;
  height: 100%;
}

.drawer-stack {
  width: var(--rail-width);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  align-self: stretch;
  height: 100%;
  min-height: 100%;
  margin: 0;
  position: relative;
  /* 勿给整轨加 z-index：会独立合成层，在 DPR=1.25 等非整数缩放下顶/底易出浅色毛边 */
  background: var(--rail-surface);
  border: none;
  /* 顶/底实色盖住 AA：深区不再显浅缝 */
  box-shadow:
    inset 0 1px 0 0 var(--rail-surface),
    inset 0 -1px 0 0 var(--rail-surface);
}

.drawer-rail-head {
  flex: 0 0 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--rail-divider, var(--line-soft, rgba(240, 239, 233, 0.08)));
  cursor: default;
}

.user-avatar {
  position: relative;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--paper-hot) 14%, transparent);
  color: var(--cement-mist);
  border: 1px solid color-mix(in srgb, var(--paper-hot) 18%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
}

.user-avatar-icon {
  width: 16px;
  height: 16px;
  display: block;
  flex-shrink: 0;
}

[data-theme="su"] .user-avatar {
  background: color-mix(in srgb, var(--ink) 8%, transparent);
  color: var(--ink-faint);
  border-color: color-mix(in srgb, var(--ink) 12%, transparent);
}

[data-theme="night"] .user-avatar {
  background: color-mix(in srgb, var(--ink) 10%, transparent);
  color: var(--ink-faint);
  border-color: color-mix(in srgb, var(--ink) 14%, transparent);
}

.user-popover {
  position: absolute;
  left: calc(100% + 6px);
  top: calc(50% + 4px);
  transform: scale(0.96);
  transform-origin: left top;
  min-width: 160px;
  padding: 10px 12px;
  background: var(--paper-hot, #fff);
  color: var(--ink, #2b2b27);
  border: 1px solid var(--line, #e7e4dc);
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.16);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s;
  z-index: 50;
}

.drawer-rail-head:hover .user-popover {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
}

.user-popover-name {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
  white-space: nowrap;
}

.user-popover-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
}

.user-popover-label {
  color: var(--cement-mist, #8a857c);
}

.user-popover-value {
  color: var(--ink, #2b2b27);
  font-weight: 500;
}

.drawer-row {
  flex: 1 1 0;
  position: relative;
  display: flex;
  flex-direction: row;
  align-items: stretch;
  min-height: 0;
  border: none;
  /* 侘寂：分色淡染（无色条）；素白/星夜：按行覆写低饱和色相 */
  --rail-tint: var(--paper-hot);
}

.drawer-row:last-child {
  border-bottom: none;
}

.drawer-row .rail-slot {
  width: 100%;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  color: var(--cement-mist);
  font-size: 9px;
  letter-spacing: 0.04em;
  background: transparent;
  border-left: 2px solid transparent;
  transition: color var(--transition), background var(--transition), border-color var(--transition);
  padding: 2px 2px;
}

.drawer-row .rail-slot span {
  text-align: center;
  line-height: 1.15;
  max-width: 48px;
}

.drawer-row .rail-slot svg {
  width: 15px;
  height: 15px;
}

.drawer-row .rail-slot:hover {
  color: var(--paper-hot);
  background: rgba(240, 239, 233, 0.06);
}

.drawer-row.is-open .rail-slot {
  color: var(--paper-hot);
  background: rgba(240, 239, 233, 0.1);
}

.drawer-rail-foot {
  flex: 0 0 auto;
  display: flex;
  align-items: stretch;
  justify-content: center;
  border-top: 1px solid var(--rail-foot-line);
  padding: 4px 0 6px;
  --rail-tint: var(--paper-hot);
}

.rail-settings-btn {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: 8px 2px;
  color: var(--cement-mist);
  font-size: 9px;
  letter-spacing: 0.04em;
  background: transparent;
  border: none;
  border-left: 2px solid transparent;
  cursor: pointer;
  transition: color var(--transition), background var(--transition);
}

.rail-settings-btn span {
  text-align: center;
  line-height: 1.15;
  max-width: 48px;
}

.rail-settings-btn svg {
  width: 15px;
  height: 15px;
}

.rail-settings-btn:hover {
  color: var(--paper-hot);
  background: rgba(240, 239, 233, 0.06);
}

/* 侘寂：分色 hover/展开淡染；左侧暂不用色条 */
[data-theme="wabi"] .drawer-row[data-drawer="skills"] { --rail-tint: #8a9e86; }
[data-theme="wabi"] .drawer-row[data-drawer="knowledge"] { --rail-tint: #7a92a8; }
[data-theme="wabi"] .drawer-row[data-drawer="meeting"] { --rail-tint: #a89078; }
[data-theme="wabi"] .drawer-row[data-drawer="schedule"] { --rail-tint: #7a9a92; }
[data-theme="wabi"] .drawer-row[data-drawer="skx"] { --rail-tint: #9086a0; }
[data-theme="wabi"] .drawer-row[data-drawer="analytics"] { --rail-tint: #b8987a; }
[data-theme="wabi"] .drawer-row[data-drawer="digitalOps"] { --rail-tint: #929e78; }
[data-theme="wabi"] .drawer-rail-foot { --rail-tint: #8a8a84; }

[data-theme="wabi"] .drawer-row .rail-slot:hover {
  background: color-mix(in srgb, var(--rail-tint) 38%, transparent);
}

[data-theme="wabi"] .drawer-row.is-open .rail-slot {
  border-left-color: transparent;
  background: color-mix(in srgb, var(--rail-tint) 44%, var(--rail-surface));
}

[data-theme="wabi"] .rail-settings-btn:hover {
  background: color-mix(in srgb, var(--rail-tint) 38%, transparent);
}

/* 素白 / 星夜：色条常显 + 展开整行淡染（色相低饱和；星夜略亮） */
[data-theme="su"] .drawer-row[data-drawer="skills"] { --rail-tint: #6f8f6c; }
[data-theme="su"] .drawer-row[data-drawer="knowledge"] { --rail-tint: #5f7f9a; }
[data-theme="su"] .drawer-row[data-drawer="meeting"] { --rail-tint: #9a7f68; }
[data-theme="su"] .drawer-row[data-drawer="schedule"] { --rail-tint: #5f8a82; }
[data-theme="su"] .drawer-row[data-drawer="skx"] { --rail-tint: #7a6f90; }
[data-theme="su"] .drawer-row[data-drawer="analytics"] { --rail-tint: #b08a6e; }
[data-theme="su"] .drawer-row[data-drawer="digitalOps"] { --rail-tint: #7a8a5e; }
[data-theme="su"] .drawer-rail-foot { --rail-tint: #6a6a64; }

[data-theme="night"] .drawer-row[data-drawer="skills"] { --rail-tint: #7fa87a; }
[data-theme="night"] .drawer-row[data-drawer="knowledge"] { --rail-tint: #6e92b0; }
[data-theme="night"] .drawer-row[data-drawer="meeting"] { --rail-tint: #b08a6e; }
[data-theme="night"] .drawer-row[data-drawer="schedule"] { --rail-tint: #6e9e96; }
[data-theme="night"] .drawer-row[data-drawer="skx"] { --rail-tint: #8e82a8; }
[data-theme="night"] .drawer-row[data-drawer="analytics"] { --rail-tint: #c49a78; }
[data-theme="night"] .drawer-row[data-drawer="digitalOps"] { --rail-tint: #8fa06c; }
[data-theme="night"] .drawer-rail-foot { --rail-tint: #8a8a86; }

[data-theme="su"] .drawer-row .rail-slot,
[data-theme="night"] .drawer-row .rail-slot {
  color: var(--ink-faint);
  border-left-color: var(--rail-tint);
}

[data-theme="su"] .drawer-row .rail-slot:hover,
[data-theme="night"] .drawer-row .rail-slot:hover {
  color: var(--ink);
  background: color-mix(in srgb, var(--rail-tint) 14%, transparent);
}

[data-theme="su"] .drawer-row.is-open .rail-slot,
[data-theme="night"] .drawer-row.is-open .rail-slot {
  color: var(--ink);
  border-left-color: var(--rail-tint);
  background: color-mix(in srgb, var(--rail-tint) 20%, var(--rail-surface));
}

[data-theme="su"] .rail-settings-btn,
[data-theme="night"] .rail-settings-btn {
  color: var(--ink-faint);
  border-left-color: var(--rail-tint);
}

[data-theme="su"] .rail-settings-btn:hover,
[data-theme="night"] .rail-settings-btn:hover {
  color: var(--ink);
  background: color-mix(in srgb, var(--rail-tint) 14%, transparent);
}

[data-theme="night"] .drawer-row .rail-slot:hover {
  background: color-mix(in srgb, var(--rail-tint) 18%, transparent);
}

[data-theme="night"] .drawer-row.is-open .rail-slot {
  background: color-mix(in srgb, var(--rail-tint) 22%, var(--rail-surface));
}

[data-theme="night"] .rail-settings-btn:hover {
  background: color-mix(in srgb, var(--rail-tint) 18%, transparent);
}

/* 星夜：侧栏/交互补丁（霜面主色已由 --frost-* token 统一） */
[data-theme="night"] .settings-sheet {
  --bg-sidebar: rgba(255, 255, 255, 0.05);
  --bg-hover: rgba(255, 255, 255, 0.06);
  --nav-active-bg: rgba(255, 255, 255, 0.1);
  --text-inverse: #121218;
  --text-muted: var(--ink-soft);
}

/* 壳与左右同底；中轨半透深色叠在其上，仍深于两侧 */
[data-theme="night"] body,
[data-theme="night"] .app-shell {
  background: var(--paper-hot);
}

[data-theme="night"] .drawer-stack {
  background: var(--rail-glass);
  box-shadow: none;
}

/* 素白/星夜色条常显时，勿让首行左边线顶穿上沿贯通线 */
[data-theme="su"] .drawer-stack::after,
[data-theme="night"] .drawer-stack::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: var(--rail-surface);
  z-index: 5;
  pointer-events: none;
}

[data-theme="night"] .drawer-stack::after {
  background: var(--paper-hot);
}

[data-theme="night"] .drawer-row.is-open .rail-slot {
  background: color-mix(in srgb, var(--rail-tint) 22%, var(--chat-sky));
}

[data-theme="night"] .drawer-section:hover {
  background: #2a2a34;
}

[data-theme="night"] .btn-ghost:hover {
  background: rgba(255, 255, 255, 0.06);
}

[data-theme="night"] .input-row {
  box-shadow: none;
  background: rgba(34, 34, 44, 0.88);
}

[data-theme="night"] .settings-search input {
  background: transparent;
  color: var(--ink);
}

[data-theme="night"] .settings-search input::placeholder {
  color: var(--ink-faint);
}

[data-theme="night"] .mod-card {
  backdrop-filter: none;
  box-shadow: none;
}

[data-theme="night"] .mod-badge {
  background: rgba(255, 255, 255, 0.12);
}

[data-theme="night"] .session-menu-btn:hover,
[data-theme="night"] .session-item.menu-open .session-menu-btn {
  background: rgba(255, 255, 255, 0.1);
}

[data-theme="night"] .mod-suggest-act:hover,
[data-theme="night"] .mod-suggest-dismiss:hover,
[data-theme="night"] .settings-shortcut-item .actions button:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--line);
}

/* 一次横向分节展开，悬浮盖住右侧（不顶开、不纵向滑动）
   飞出层按内容收缩；过长时由 JS 锁宽到视口剩余，保证可滚到底 */
@property --drawer-fade {
  syntax: "<number>";
  inherits: true;
  initial-value: 0;
}

.drawer-flyout {
  position: absolute;
  left: 100%;
  top: var(--flyout-top, 50%);
  z-index: 40; /* 仅飞出层抬升盖住右侧；勿抬升整轨 */
  display: none; /* 开合用 is-visible + clip-path，避免 [hidden] 掐断过渡 */
  flex-direction: row;
  align-items: stretch;
  width: max-content;
  max-width: calc(100vw - var(--rail-width) - 40px);
  height: var(--flyout-height, max-content);
  clip-path: inset(0 0 0 0);
  opacity: 1;
  --drawer-fade: 0;
}

/* 对齐 Vue Transition name="drawer-fly"：0.8s clip-path 擦入/擦出 */
.drawer-flyout.is-visible {
  display: flex;
}

.drawer-flyout.is-animating {
  transition: clip-path 0.8s ease, opacity 0.8s ease;
}

.drawer-flyout.is-entering {
  opacity: 0;
  clip-path: inset(0 100% 0 0);
}

.drawer-flyout.is-open {
  opacity: 1;
  clip-path: inset(0 0 0 0);
}

.drawer-flyout.is-closing {
  opacity: 0;
  clip-path: inset(0 100% 0 0);
  pointer-events: none;
}

/* 换格时旧层并行擦出（在主飞出层之下） */
.drawer-flyout.is-ghost {
  z-index: 39;
  pointer-events: none;
}

.drawer-flyout[hidden] {
  display: none !important;
}

.drawer-panel {
  height: 100%;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  flex: 1 1 auto;
  overflow: hidden;
  /* --drawer-fade 由 JS 写在本节点；渐隐带宽 ≈ 一节宽（与 --drawer-section-width 同步用固定 px，避免 var 连乘合成异常） */
  --drawer-fade: 0;
  -webkit-mask-image: linear-gradient(
    to right,
    #000 0%,
    #000 calc(100% - (112px * var(--drawer-fade))),
    rgb(0 0 0 / calc(1 - 0.1 * var(--drawer-fade))) calc(100% - (84px * var(--drawer-fade))),
    rgb(0 0 0 / calc(1 - 0.32 * var(--drawer-fade))) calc(100% - (60px * var(--drawer-fade))),
    rgb(0 0 0 / calc(1 - 0.58 * var(--drawer-fade))) calc(100% - (36px * var(--drawer-fade))),
    rgb(0 0 0 / calc(1 - 0.84 * var(--drawer-fade))) calc(100% - (14px * var(--drawer-fade))),
    rgb(0 0 0 / calc(1 - var(--drawer-fade))) 100%
  );
  mask-image: linear-gradient(
    to right,
    #000 0%,
    #000 calc(100% - (112px * var(--drawer-fade))),
    rgb(0 0 0 / calc(1 - 0.1 * var(--drawer-fade))) calc(100% - (84px * var(--drawer-fade))),
    rgb(0 0 0 / calc(1 - 0.32 * var(--drawer-fade))) calc(100% - (60px * var(--drawer-fade))),
    rgb(0 0 0 / calc(1 - 0.58 * var(--drawer-fade))) calc(100% - (36px * var(--drawer-fade))),
    rgb(0 0 0 / calc(1 - 0.84 * var(--drawer-fade))) calc(100% - (14px * var(--drawer-fade))),
    rgb(0 0 0 / calc(1 - var(--drawer-fade))) 100%
  );
}

/* 旧覆盖层停用 */
.drawer-edge-fade {
  display: none;
}

.drawer-sections {
  display: flex;
  flex-direction: row;
  align-items: stretch;
  height: 100%;
  width: 100%;
  max-width: 100%; /* 勿再限 520px：需铺满锁宽后的飞出层，遮罩才能贴齐可见右缘 */
  gap: 0;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.drawer-sections::-webkit-scrollbar {
  display: none;
}

@keyframes sectionsIn {
  from { opacity: 0; transform: translateX(-10px); }
  to { opacity: 1; transform: none; }
}

@keyframes sectionsOut {
  from { opacity: 1; transform: none; }
  to { opacity: 0; transform: translateX(-10px); }
}

.drawer-section {
  width: var(--drawer-section-width);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  min-height: 0;
  background: var(--paper-hot);
  border: 1px solid var(--line);
  border-left: none;
  padding: 4px 8px;
  color: var(--ink);
  font-size: 11px;
  cursor: pointer;
  transition: background var(--transition);
}

.drawer-section:first-child {
  border-left: 1px solid var(--line);
}

/* 末卡阴影强度随渐隐连续变化，避免开关时跳动 */
.drawer-section:last-child {
  border-right-color: var(--line);
  box-shadow: 6px 2px 14px rgba(46, 46, 43, calc(0.12 * (1 - var(--drawer-fade, 0))));
}

.drawer-section:hover {
  background: #f6f5f0;
}

.drawer-section-head {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-bottom: 0;
  text-align: center;
}

.drawer-section-head strong,
.drawer-section > strong {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  line-height: 1.25;
  color: var(--ink);
  text-align: center;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.right-pane {
  flex: 1;
  min-width: 0;
  align-self: stretch;
  position: relative;
  background-color: var(--paper-hot);
  background-image: var(--pane-gradient);
  border: none;
  border-radius: 0;
  overflow: hidden;
  box-shadow:
    inset 0 1px 0 0 var(--paper-hot),
    inset 0 -1px 0 0 var(--paper);
}

/* —— Settings modal（同步 admin-assistant-web · 侘寂适配） —— */
.settings-sheet {
  --bg-card: var(--paper-hot);
  --bg-sidebar: rgba(143, 142, 137, 0.14);
  --bg-hover: rgba(143, 142, 137, 0.12);
  --text-primary: var(--ink);
  --text-secondary: var(--ink-soft);
  --text-muted: var(--ink-faint);
  --text-inverse: var(--paper-hot);
  --border-color: var(--line);
  --border-active: var(--line-strong);
  --accent-color: var(--cement);
  --accent-hover: var(--cement-deep);
  --nav-active-bg: rgba(143, 142, 137, 0.22);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 10px;
  --shadow-premium: var(--shadow-soft);
  --transition-fast: 0.15s ease;
  --transition-normal: var(--transition);

  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(46, 46, 43, 0.32);
  backdrop-filter: blur(3px);
}

.settings-sheet[hidden] {
  display: none !important;
}

.settings-modal {
  width: min(820px, 92vw);
  height: min(560px, 85vh);
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-premium);
  display: flex;
  overflow: hidden;
}

.settings-sidebar {
  width: 210px;
  flex-shrink: 0;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  padding: 16px 12px;
}

.settings-search {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: var(--frost-45);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
}

.settings-search svg {
  width: 14px;
  height: 14px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.settings-search input {
  border: none;
  background: none;
  outline: none;
  font-size: 12px;
  font-family: var(--font-body);
  color: var(--text-primary);
  width: 100%;
}

.settings-search input::placeholder {
  color: var(--text-muted);
}

.settings-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-y: auto;
  flex: 1;
  min-height: 0;
}

.settings-nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 11px;
  border: none;
  background: none;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-family: var(--font-body);
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  text-align: left;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.settings-nav-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.settings-nav-item.active {
  background: var(--nav-active-bg);
  color: var(--accent-hover);
  font-weight: 600;
}

.settings-nav-item.hidden-by-search {
  display: none;
}

.settings-nav-divider {
  height: 1px;
  margin: 8px 6px;
  background: var(--border-color);
  flex-shrink: 0;
}

.settings-content {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  position: relative;
  background: var(--pane-gradient, linear-gradient(180deg, var(--paper-hot) 0%, var(--paper) 100%));
  background-color: var(--paper-hot);
}

.settings-content-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 12px;
  flex-shrink: 0;
}

.settings-content-header h2 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.settings-close-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.settings-close-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.settings-panels {
  flex-grow: 1;
  overflow-y: auto;
  padding: 0 24px 72px;
  position: relative;
}

.settings-panel[hidden] {
  display: none !important;
}

.settings-group {
  margin-bottom: 28px;
}

.settings-group:last-child {
  margin-bottom: 0;
}

.settings-group-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
}

.settings-row:last-child {
  border-bottom: none;
}

.settings-row-static {
  align-items: flex-start;
}

.settings-shortcut-block {
  padding: 4px 0 8px;
  border-bottom: 1px solid var(--border-color);
}

.settings-shortcut-block .settings-row {
  border-bottom: none;
  padding-bottom: 4px;
}

.settings-shortcut-meta {
  font-size: 11px;
  color: var(--text-muted);
  margin: 4px 0 10px;
}

.settings-shortcut-selected {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}

.settings-shortcut-selected:empty::after {
  content: '尚未选择快捷入口';
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  padding: 8px 0;
}

.settings-shortcut-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--frost-45);
}

.settings-shortcut-item .ord {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border-radius: 9px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 600;
  background: rgba(46, 46, 43, 0.1);
  color: var(--ink);
}

.settings-shortcut-item .label {
  flex: 1;
  min-width: 0;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
}

.settings-shortcut-item .actions {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}

.settings-shortcut-item .actions button {
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.settings-shortcut-item .actions button:hover:not(:disabled) {
  color: var(--ink);
  background: rgba(46, 46, 43, 0.05);
  border-color: var(--line);
}

.settings-shortcut-item .actions button:disabled {
  opacity: 0.35;
  cursor: default;
}

.settings-shortcut-pool-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.settings-shortcut-pool {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.settings-shortcut-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--frost-40);
  color: var(--ink-soft);
  font-size: 12px;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition), opacity var(--transition);
}

.settings-shortcut-chip:hover:not(:disabled) {
  color: var(--ink);
  border-color: var(--line-strong);
  background: var(--frost-70);
}

.settings-shortcut-chip:disabled {
  opacity: 0.4;
  cursor: default;
}

.settings-shortcut-chip.is-full-hint:disabled {
  opacity: 0.45;
}

.settings-row-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.settings-row-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.settings-row-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.4;
}

/* —— 自定义下拉组件（替代原生 select 弹出列表） —— */
.cd-wrapper {
  position: relative;
  flex-shrink: 0;
  display: inline-block;
}

/* 原生 select 的类名会拷到 wrapper 上（mtg-form-select 等），必须剥掉边框/内边距/背景，
   否则与内部 .cd-trigger 叠成左上错位的「幽灵框」。html 前缀保证压过主题选择器。 */
html .cd-wrapper[role="combobox"] {
  padding: 0;
  border: none;
  background: none;
  background-image: none;
  box-shadow: none;
  height: auto;
  min-height: 0;
  appearance: none;
  -webkit-appearance: none;
}

.cd-trigger {
  display: flex;
  width: 100%;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--frost-55);
  font-size: 12px;
  font-family: var(--font-body);
  color: var(--text-primary);
  cursor: pointer;
  outline: none;
  transition: border-color var(--transition-fast);
  white-space: nowrap;
  box-sizing: border-box;
}

.cd-trigger:hover,
.cd-wrapper.cd-open .cd-trigger {
  border-color: var(--accent-color);
}

.cd-label {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  pointer-events: none;
}

.cd-caret {
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid var(--text-muted);
  flex-shrink: 0;
  transition: transform 0.2s;
  pointer-events: none;
}

.cd-wrapper.cd-open .cd-caret {
  transform: rotate(180deg);
}

.cd-list {
  position: absolute;
  z-index: 50;
  top: calc(100% + 4px);
  right: 0;
  min-width: 100%;
  max-height: 240px;
  overflow-y: auto;
  padding: 4px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  display: none;
}

.cd-wrapper.cd-open .cd-list {
  display: block;
}

.cd-option {
  display: block;
  width: 100%;
  padding: 6px 10px;
  border: none;
  border-radius: var(--radius-sm);
  background: none;
  font-size: 12px;
  font-family: var(--font-body);
  color: var(--text-secondary);
  text-align: left;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.12s, color 0.12s;
}

.cd-option:hover {
  background: rgba(143, 142, 137, 0.14);
  color: var(--text-primary);
}

.cd-option.is-selected {
  color: var(--accent-hover);
  font-weight: 600;
}

/* 夜间主题 */
[data-theme="night"] .cd-list {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

[data-theme="night"] .cd-option:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* KB / Skills 下拉宽度适配 */
.cd-wrapper.kb-form-select {
  width: 100%;
}

.cd-wrapper.kb-form-select .cd-trigger {
  width: 100%;
  padding: 9px 11px;
  font-size: 13px;
}

.cd-wrapper.profile-prompt-select {
  width: 100%;
}

.cd-wrapper.profile-prompt-select .cd-trigger {
  width: 100%;
  padding: 7px 10px;
  font-size: 13px;
  border-radius: 6px;
}

.cd-wrapper.skill-item-category-select .cd-trigger {
  padding: 4px 8px;
  font-size: 12px;
}

/* 会议表单下拉宽度适配 */
.cd-wrapper.mtg-form-select {
  width: 100%;
}

.cd-wrapper.mtg-form-select .cd-trigger {
  width: 100%;
  padding: 7px 10px;
  font-size: 13px;
  border-radius: var(--radius-sm);
  background: var(--paper-hot);
  justify-content: space-between;
}

.settings-toggle {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 22px;
  flex-shrink: 0;
  cursor: pointer;
}

.settings-toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.settings-toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--cement-mist);
  border-radius: 11px;
  transition: background-color var(--transition-fast);
}

.settings-toggle-slider::before {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  left: 3px;
  bottom: 3px;
  background: #fff;
  border-radius: 50%;
  transition: transform var(--transition-fast);
  box-shadow: 0 1px 3px rgba(46, 46, 43, 0.15);
}

.settings-toggle input:checked + .settings-toggle-slider {
  background: var(--accent-color);
}

.settings-toggle input:checked + .settings-toggle-slider::before {
  transform: translateX(18px);
}

.settings-shell-hint {
  padding: 8px 0;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.55;
}

.settings-action-btn {
  flex-shrink: 0;
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper-hot);
  font-size: 12px;
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.settings-action-btn:hover {
  border-color: var(--line-strong);
  background: rgba(143, 142, 137, 0.12);
  color: var(--ink);
}

.settings-kb-scope-block {
  margin-top: 14px;
  padding-left: 2px;
}

.settings-kb-scope-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.settings-account-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: var(--frost-45);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  margin-bottom: 8px;
}

.settings-account-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--cement);
  color: var(--paper-hot);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  flex-shrink: 0;
}

[data-theme="night"] .settings-account-avatar {
  color: #121218;
  background: var(--cement-deep);
}

.settings-account-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.settings-account-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
}

.settings-account-dept {
  font-size: 12px;
  color: var(--ink-soft);
}

.settings-actions {
  position: absolute;
  right: 24px;
  bottom: 24px;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 12px;
}

.settings-actions[hidden] {
  display: none !important;
}

.settings-apply-btn {
  background: var(--accent-color);
  color: var(--text-inverse);
  border: none;
  border-radius: var(--radius-md);
  padding: 8px 20px;
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font-body);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.settings-apply-btn:hover {
  background: var(--accent-hover);
}

.settings-apply-msg {
  font-size: 12px;
  color: var(--text-muted);
}

.settings-apply-msg.success {
  color: var(--accent-hover);
}

.settings-apply-msg.error {
  color: var(--danger-soft);
}

.settings-apply-msg[hidden] {
  display: none !important;
}

@media (max-width: 640px) {
  .settings-modal {
    flex-direction: column;
    height: min(90vh, 700px);
  }

  .settings-sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    padding: 12px;
  }

  .settings-nav {
    flex-direction: row;
    overflow-x: auto;
    gap: 4px;
  }

  .settings-nav-item {
    white-space: nowrap;
    font-size: 12px;
  }

  .settings-nav-divider {
    width: 1px;
    height: 22px;
    margin: 0 6px;
    align-self: center;
  }
}

/* —— Session rename / delete（侘寂弹层，替 prompt/confirm） —— */
.session-dialog {
  position: fixed;
  inset: 0;
  z-index: 110;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(46, 46, 43, 0.28);
}

.session-dialog[hidden] {
  display: none !important;
}

.session-dialog-card {
  width: min(380px, 90vw);
  background: var(--paper-hot);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 18px 20px 16px;
}

.session-dialog-card header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.session-dialog-card h2 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
}

.session-dialog-desc {
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin-bottom: 12px;
}

.session-dialog-input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--frost-55);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 14px;
  outline: none;
}

.session-dialog-input:focus {
  border-color: var(--cement);
  background: var(--frost-72);
}

.session-dialog-input[hidden] {
  display: none !important;
}

.session-dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 16px;
}

.btn-sheet {
  appearance: none;
  border: 1px solid var(--line-strong);
  background: var(--frost-40);
  color: var(--ink-soft);
  font-family: var(--font-body);
  font-size: 13px;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.btn-sheet:hover {
  background: var(--frost-70);
  color: var(--ink);
}

.btn-sheet.primary {
  background: var(--cement);
  border-color: var(--cement-deep);
  color: var(--paper-hot);
}

.btn-sheet.primary:hover {
  background: var(--cement-deep);
  color: var(--paper-hot);
}

.btn-sheet.danger {
  background: transparent;
  border-color: rgba(138, 106, 90, 0.45);
  color: var(--danger-soft);
}

.btn-sheet.danger:hover {
  background: rgba(138, 106, 90, 0.1);
  color: #6e5246;
}

/* —— Left header —— */
.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 22px 12px;
  border: none;
  flex-shrink: 0;
}

.chat-brand {
  --brand-h: 30px;
  --brand-logo-ink: #4a4859;
  --brand-logo-green: #8ab131;
  display: inline-flex;
  align-items: center;
  min-width: 0;
  line-height: 1;
}

.chat-brand-logo {
  height: var(--brand-h);
  width: auto;
  flex-shrink: 0;
  display: block;
  overflow: visible;
}

.chat-brand-logo .brand-ink {
  fill: var(--brand-logo-ink);
}

.chat-brand-logo .brand-green {
  fill: var(--brand-logo-green);
}

/* 星夜：墨提亮、绿降饱和略压明度，避免霓虹跳色 */
[data-theme="night"] .chat-brand {
  --brand-logo-ink: #c8c6c0;
  --brand-logo-green: #7a9648;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  color: var(--ink-soft);
  font-size: 12px;
  border: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition);
}

.btn-ghost:hover {
  background: rgba(46, 46, 43, 0.05);
  border-color: var(--line);
}

.btn-ghost[hidden] {
  display: none !important;
}

/* —— Mid: taiji / messages —— */
.chat-messages[hidden] {
  display: none !important;
}

/* 对话态：星轨盘不收起，作浅度动态背景；上方 paper 遮罩保证可读 */
.chat-mid.is-chat-active .taiji-stage {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  padding: 8px;
}

.chat-mid.is-chat-active .taiji-stage::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 4;
  background: linear-gradient(
    180deg,
    rgba(232, 231, 225, 0.58) 0%,
    rgba(232, 231, 225, 0.5) 45%,
    rgba(232, 231, 225, 0.62) 100%
  );
  pointer-events: none;
}

[data-theme="su"] .chat-mid.is-chat-active .taiji-stage::after {
  background: linear-gradient(
    180deg,
    rgba(250, 249, 246, 0.62) 0%,
    rgba(250, 249, 246, 0.54) 45%,
    rgba(242, 241, 237, 0.66) 100%
  );
}

/* 星夜：暗透遮罩保证可读，勿用浅纸色洗白背景与星轨 */
[data-theme="night"] .chat-mid.is-chat-active .taiji-stage::after {
  background: linear-gradient(
    180deg,
    rgba(16, 28, 48, 0.72) 0%,
    rgba(16, 28, 48, 0.62) 45%,
    rgba(16, 28, 48, 0.76) 100%
  );
}

[data-theme="night"] .chat-mid.is-chat-active .taiji-spin {
  opacity: 0.55;
}

/* 对话态隐藏入口：实心圆钮再淡也会抢过细弧，且不可点 */
.chat-mid.is-chat-active .taiji-icons {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

/* 对话态数字人再压一档（stage::after 纸色遮罩之外）；飞出态不受此约束 */
.chat-mid.is-chat-active .taiji-avatar-btn:not(.is-free) .taiji-avatar-stack {
  opacity: 0.42;
}

[data-theme="night"] .chat-mid.is-chat-active .taiji-avatar-btn:not(.is-free) .taiji-avatar-stack {
  opacity: 0.35;
}

.chat-mid.is-chat-active .taiji-avatar-btn:not(.is-free) {
  pointer-events: none;
}

.chat-mid.is-chat-active .chat-messages {
  position: relative;
  z-index: 1;
  background: transparent;
}

.taiji-glow {
  position: absolute;
  width: min(90%, 360px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, var(--glow) 0%, transparent 72%);
  filter: blur(14px);
  opacity: 0.22;
  pointer-events: none;
  z-index: 0;
}

[data-theme="su"] .taiji-glow {
  opacity: 0;
}

.taiji-icons {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  transform-origin: 50% 50%;
  will-change: transform;
}

.taiji-icon-arm {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 0;
  height: 0;
  transform: rotate(var(--arm-deg, 0deg));
  pointer-events: none;
}

/* 轻量星体：贴在星盘上，公转时自身保持正立 */
.taiji-icon {
  position: absolute;
  left: 0;
  top: 0;
  width: 54px;
  height: 54px;
  margin: -27px 0 0 -27px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(240, 239, 233, 0.94);
  border: 1px solid rgba(110, 109, 104, 0.2);
  color: var(--ink);
  box-shadow:
    inset 0 1px 0 var(--frost-55),
    0 2px 10px rgba(46, 46, 43, 0.1);
  pointer-events: auto;
  cursor: pointer;
  transition: background 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  transform: translateY(var(--orbit-r, -140px)) rotate(var(--icon-counter, 0deg));
  z-index: 2;
}

.taiji-icon:hover {
  background: #f7f6f1;
  z-index: 3;
  border-color: rgba(110, 109, 104, 0.38);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.65),
    0 4px 14px rgba(46, 46, 43, 0.14);
}

[data-theme="su"] .taiji-icon {
  background: var(--paper-hot);
  border-color: var(--line-strong);
  box-shadow: none;
}

[data-theme="su"] .taiji-icon:hover {
  background: var(--paper);
  border-color: var(--ink-faint);
  box-shadow: none;
}

[data-theme="night"] .taiji-icon {
  background: rgba(58, 58, 70, 0.82);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--ink);
  box-shadow: none;
}

[data-theme="night"] .taiji-icon:hover {
  background: rgba(72, 72, 86, 0.9);
  border-color: rgba(255, 255, 255, 0.28);
  box-shadow: none;
}

.taiji-icon svg {
  width: 21px;
  height: 21px;
}

.taiji-icon .tip {
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  font-size: 11px;
  padding: 3px 7px;
  border-radius: var(--radius-sm);
  background: var(--ink);
  color: var(--paper);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease;
}

.taiji-icon:hover .tip {
  opacity: 1;
}

/* —— Messages —— */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scrollbar-width: thin;
  scrollbar-color: rgba(110, 109, 104, 0.35) transparent;
}

.chat-messages::-webkit-scrollbar {
  width: 8px;
}

.chat-messages::-webkit-scrollbar-track {
  background: transparent;
}

.chat-messages::-webkit-scrollbar-thumb {
  background: rgba(110, 109, 104, 0.35);
  border-radius: 4px;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
  background: rgba(110, 109, 104, 0.5);
}

.chat-messages::-webkit-scrollbar-button {
  display: none;
  height: 0;
  width: 0;
}

.msg {
  max-width: 92%;
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.55;
  animation: msgIn 0.25s ease;
}

@keyframes msgIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

.msg.user {
  align-self: flex-end;
  background: var(--cement-mid);
  color: var(--paper-hot);
  border-bottom-right-radius: 2px;
}

.msg.assistant {
  align-self: flex-start;
  background: var(--frost-55);
  border: 1px solid var(--line);
  color: var(--ink);
  border-bottom-left-radius: 2px;
}

[data-theme="night"] .msg.assistant {
  background: rgba(255, 255, 255, 0.06);
}

[data-theme="night"] .msg.user {
  color: var(--ink);
  background: rgba(110, 108, 102, 0.55);
}

.msg .skill-tag {
  display: inline-block;
  margin-bottom: 6px;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  background: rgba(122, 117, 104, 0.15);
  color: var(--accent);
}

/* Markdown 正文层（对齐 Vue MessageList .text-content） */
.msg .text-content {
  font-size: 12px;
  line-height: 1.7;
  word-break: break-word;
}

.msg .text-content > :first-child {
  margin-top: 0;
}

.msg .text-content > :last-child {
  margin-bottom: 0;
}

.msg .text-content h1,
.msg .text-content h2,
.msg .text-content h3,
.msg .text-content h4 {
  font-size: 12px;
  font-weight: 600;
  margin: 8px 0 4px;
  line-height: 1.4;
}

.msg .text-content p,
.msg .text-content li,
.msg .text-content td,
.msg .text-content th,
.msg .text-content code,
.msg .text-content pre,
.msg .text-content blockquote {
  font-size: 12px;
}

.msg .text-content p {
  margin: 8px 0;
}

.msg .text-content ul,
.msg .text-content ol {
  margin: 8px 0;
  padding-left: 24px;
}

.msg .text-content table {
  border-collapse: collapse;
  margin: 12px 0;
  width: 100%;
  border: 1px solid var(--line);
}

.msg .text-content th,
.msg .text-content td {
  border: 1px solid var(--line);
  padding: 8px 12px;
  text-align: left;
  color: var(--ink);
}

.msg .text-content th {
  background: var(--paper-hot);
  font-weight: 600;
}

.msg .text-content code {
  background: color-mix(in srgb, var(--paper) 70%, var(--ink));
  padding: 2px 6px;
  border-radius: 4px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.msg .text-content pre {
  background: color-mix(in srgb, var(--paper) 70%, var(--ink));
  padding: 12px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 12px 0;
}

.msg .text-content pre code {
  background: transparent;
  padding: 0;
}

.msg .text-content blockquote {
  border-left: 3px solid var(--cement-mid);
  margin: 12px 0;
  padding-left: 16px;
  color: var(--ink-soft);
}

.msg .text-content hr {
  border: none;
  border-top: 1px solid var(--line);
  margin: 16px 0;
}

.msg.user .text-content code,
.msg.user .text-content pre {
  background: rgba(240, 239, 233, 0.18);
  color: inherit;
}

.msg.user .text-content blockquote {
  border-left-color: rgba(240, 239, 233, 0.45);
  color: rgba(240, 239, 233, 0.85);
}

/* 思考 / 流式占位 */
.msg .typing-cursor {
  display: inline;
  color: var(--accent);
  font-weight: 400;
  animation: msgCursorBlink 0.8s step-end infinite;
}

@keyframes msgCursorBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.msg .thinking-content {
  font-size: 12px;
  color: var(--ink-soft);
  line-height: 1.6;
}

.msg .thinking-dots {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 2px 0;
}

.msg .thinking-dots .dot {
  font-size: 8px;
  color: var(--ink-faint);
  animation: msgDotPulse 1.2s ease-in-out infinite;
}

.msg .thinking-dots .dot:nth-child(1) { animation-delay: 0s; }
.msg .thinking-dots .dot:nth-child(2) { animation-delay: 0.2s; }
.msg .thinking-dots .dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes msgDotPulse {
  0%, 80%, 100% { opacity: 0.2; transform: scale(0.8); }
  40% { opacity: 1; transform: scale(1); }
}

/* 富消息（对齐 Vue RichMessage + 侘寂 token） */
.msg .rich-message {
  margin-top: 4px;
}

.msg .response-block {
  margin-top: 10px;
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

.msg .response-block:first-child {
  margin-top: 8px;
}

.msg .skill-callout {
  background: color-mix(in srgb, var(--accent) 10%, var(--paper-hot));
  border-left: 3px solid var(--accent);
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  color: var(--ink-soft);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 8px;
  font-weight: 500;
}

.msg .skill-callout strong {
  color: var(--ink);
  font-weight: 600;
}

.msg .skill-callout .tag {
  background: var(--accent);
  color: var(--paper-hot);
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 10px;
  font-weight: 600;
}

.msg .skill-callout.is-workflow {
  border-left-color: #5b8fa8;
  color: #3d6a7a;
  background: color-mix(in srgb, #5b8fa8 12%, var(--paper-hot));
}

.msg .skill-callout.is-workflow .tag {
  background: #5b8fa8;
}

.msg .skill-callout.is-knowledge {
  border-left-color: #8a7aad;
  color: #5c4f7a;
  background: color-mix(in srgb, #8a7aad 12%, var(--paper-hot));
}

.msg .skill-callout.is-knowledge .tag {
  background: #8a7aad;
}

[data-theme="night"] .msg .skill-callout.is-workflow {
  color: #9ec4d4;
}

[data-theme="night"] .msg .skill-callout.is-knowledge {
  color: #c4b8e0;
}

.msg .artifact-box {
  background: var(--paper-hot);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-top: 4px;
  overflow: hidden;
}

.msg .artifact-header {
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  font-weight: 600;
  background: color-mix(in srgb, var(--paper) 55%, var(--paper-hot));
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.msg .artifact-header .title {
  color: var(--ink);
  min-width: 0;
}

.msg .artifact-header .action-btn {
  flex-shrink: 0;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  font: inherit;
  font-size: 12px;
  font-weight: 500;
  color: var(--accent);
}

.msg .artifact-header .action-btn:hover {
  text-decoration: underline;
}

.msg .artifact-body {
  padding: 12px;
  font-size: 12px;
  color: var(--ink-soft);
  line-height: 1.6;
}

.msg .artifact-text,
.msg .artifact-footer,
.msg .standalone-hint {
  margin: 0;
  font-size: 12px;
  color: var(--ink-soft);
  line-height: 1.6;
}

.msg .artifact-footer {
  margin-top: 10px;
  color: var(--ink-faint);
  font-size: 11px;
}

.msg .standalone-hint {
  margin-top: 4px;
}

.msg .data-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 4px;
  font-size: 12px;
  text-align: left;
  border: 1px solid var(--line);
}

.msg .data-table th,
.msg .data-table td {
  padding: 8px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  color: var(--ink);
}

.msg .data-table th {
  background: var(--paper-hot);
  font-weight: 600;
}

.msg .data-table td {
  background: color-mix(in srgb, var(--paper-hot) 94%, var(--ink));
}

.msg .data-table tbody tr:hover td {
  background: color-mix(in srgb, var(--paper-hot) 82%, var(--ink));
}

.msg .badge-status {
  display: inline-block;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 600;
}

.msg .badge-status.success {
  background: color-mix(in srgb, #8a9e86 28%, var(--paper-hot));
  color: #4a5c48;
}

[data-theme="night"] .msg .badge-status.success {
  background: rgba(127, 168, 122, 0.22);
  color: #b8d4b4;
}

[data-theme="night"] .msg .artifact-box {
  background: rgba(255, 255, 255, 0.04);
}

[data-theme="night"] .msg .artifact-header {
  background: rgba(255, 255, 255, 0.05);
}

.app-toast {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  padding: 8px 16px;
  border-radius: 20px;
  background: rgba(46, 46, 43, 0.92);
  color: #f0efe9;
  font-size: 12px;
  font-weight: 500;
  box-shadow: 0 10px 25px rgba(46, 46, 43, 0.25);
  animation: toastIn 0.22s ease;
  pointer-events: none;
}

[data-theme="night"] .app-toast {
  background: rgba(232, 230, 224, 0.92);
  color: #1c2b48;
}

@keyframes toastIn {
  from { opacity: 0; transform: translate(-50%, 12px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

/* —— Input —— */
.chat-input-bar {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 14px 16px;
  border: none;
  background: rgba(232, 231, 225, 0.85);
}

[data-theme="su"] .chat-input-bar {
  background: rgba(250, 249, 246, 0.92);
}

[data-theme="night"] .chat-input-bar {
  background: color-mix(in srgb, var(--paper-hot) 88%, transparent);
}

/* 输入框上方的工具栏：与对话框左对齐 */
.chat-input-toolbar {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  padding: 4px 0 0 0;
  margin-bottom: 8px;
  justify-content: flex-start;
  width: 100%;
}

.btn-new-chat {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--btn-background);
  color: var(--ink);
  font-size: 12px;
  font-weight: 400;
  font-family: var(--font-body);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
}

.btn-new-chat:hover {
  background: rgba(143, 142, 137, 0.12);
}

.scene-chip {
  margin-left: 8px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  border-radius: var(--radius-full, 999px);
  background: rgba(122, 117, 104, 0.12);
  font-size: 12px;
  color: var(--ink-soft);
}

.scene-chip[hidden] {
  display: none !important;
}

.scene-chip button {
  font-size: 14px;
  line-height: 1;
  color: var(--ink-faint);
}

.input-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--paper-hot);
  box-shadow: inset 0 1px 0 var(--frost-40);
}

.input-row textarea {
  flex: 1;
  resize: none;
  border: none;
  outline: none;
  background: transparent;
  min-height: 24px;
  max-height: 96px;
  line-height: 1.45;
  font-size: 14px;
}

.input-row textarea:focus {
  outline: none;
  box-shadow: none;
  border: none;
}

.input-row textarea::placeholder {
  color: var(--ink-faint);
}

.btn-send {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--cement-deep);
  color: var(--paper);
  flex-shrink: 0;
  transition: background var(--transition);
}

.btn-send:hover {
  background: var(--ink);
}

/* —— Right modules —— */
.modules-layer {
  height: 100%;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
  padding: 22px 24px 28px;
}

.modules-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  flex-shrink: 0;
}

.modules-header-text {
  display: flex;
  align-items: baseline;
  gap: 12px;
  min-width: 0;
}

.modules-header h2 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--ink);
}

.modules-sub {
  font-size: 12px;
  color: var(--ink-soft);
  letter-spacing: 0.06em;
}

/* 自定义悬停提示（侘寂 paper，替代原生 title） */
.ui-tip {
  position: fixed;
  z-index: 120;
  padding: 7px 12px;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1.35;
  color: var(--ink-soft);
  background: var(--paper-hot);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translateY(3px);
  transition: opacity 0.16s ease, transform 0.16s ease;
}

.ui-tip.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.ui-tip[data-side="right"].is-visible {
  transform: translateX(0);
}

.ui-tip[data-side="right"] {
  transform: translateX(-3px);
}

.ui-tip[data-side="left"].is-visible {
  transform: translateX(0);
}

.ui-tip[data-side="left"] {
  transform: translateX(3px);
}

.ui-tip[hidden] {
  display: none !important;
}

/* 一竖（历史）+ 三块（概览） */
.modules-body {
  flex: 1;
  min-height: 0;
  display: flex;
  gap: 14px;
  align-items: stretch;
}

.session-rail {
  width: 248px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--frost-40);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.session-rail-head {
  flex-shrink: 0;
  padding: 12px 14px 10px;
  border-bottom: 1px solid var(--line);
}

.session-rail-head h3 {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 10px;
}

.session-search-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.session-search-wrapper .search-icon {
  position: absolute;
  left: 10px;
  width: 14px;
  height: 14px;
  color: var(--ink-faint);
  pointer-events: none;
}

.session-search-wrapper input {
  width: 100%;
  background: var(--frost-55);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 7px 10px 7px 30px;
  font-size: 12px;
  font-family: var(--font-body);
  color: var(--ink);
  outline: none;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.session-search-wrapper input::placeholder {
  color: var(--ink-faint);
}

.session-search-wrapper input:focus {
  background: var(--paper-hot);
  border-color: var(--line-strong);
}

.session-list {
  list-style: none;
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 6px;
  scrollbar-width: thin;
}

.session-list-empty {
  margin: 16px 8px;
  font-size: 12px;
  color: var(--ink-faint);
  text-align: center;
  line-height: 1.45;
}

.session-item {
  display: flex;
  align-items: flex-start;
  gap: 2px;
  padding: 2px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: transparent;
  color: var(--ink);
  transition: background 0.15s ease, border-color 0.15s ease;
}

.session-item:hover {
  background: var(--hover-wash);
  border-color: var(--line);
}

.session-item.is-active {
  background: var(--active-wash);
  border-color: var(--line-strong);
}

.session-actions {
  position: relative;
  flex-shrink: 0;
  padding-top: 6px;
  margin-left: auto;
}

.session-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  padding: 0;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--ink-faint);
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.session-item:hover .session-menu-btn,
.session-item.menu-open .session-menu-btn {
  opacity: 1;
}

.session-menu-btn:hover,
.session-item.menu-open .session-menu-btn {
  background: rgba(110, 109, 104, 0.14);
  color: var(--ink);
}

.session-dropdown {
  display: none;
  position: fixed;
  min-width: 124px;
  padding: 4px;
  background: var(--paper-hot);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  z-index: 80;
}

.session-dropdown.show {
  display: block;
}

.session-dropdown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 7px 10px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  font-size: 12px;
  color: var(--ink-soft);
  cursor: pointer;
  text-align: left;
  transition: background 0.12s ease, color 0.12s ease;
}

.session-dropdown-item:hover {
  background: rgba(110, 109, 104, 0.12);
  color: var(--ink);
}

.session-dropdown-item.danger:hover {
  background: rgba(138, 106, 90, 0.16);
  color: var(--danger-soft);
}

.session-dropdown-item svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.session-item-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 3px;
  text-align: left;
  padding: 8px 4px 8px 9px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: inherit;
  cursor: pointer;
}

.session-item-title {
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--ink);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.session-item-meta {
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: 0.02em;
}

.modules-overview {
  flex: 1;
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow: hidden;
}

.modules-overview .mod-card {
  flex: 1 1 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modules-overview .mod-list {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  scrollbar-width: thin;
}

/* 左栏收起：右栏变宽 → 三卡按宽度自适应横排，避免超宽扁条 */
.app-shell.is-chat-collapsed .session-rail {
  width: min(280px, 26%);
}

.app-shell.is-chat-collapsed .modules-overview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  grid-auto-rows: minmax(0, 1fr);
  gap: 12px;
  align-items: stretch;
}

.app-shell.is-chat-collapsed .modules-overview .mod-card {
  flex: unset;
  min-height: 0;
  height: 100%;
}

.mod-card {
  background: var(--frost-55);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  backdrop-filter: blur(4px);
  box-shadow: 0 4px 16px rgba(46, 46, 43, 0.05);
}

.mod-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.mod-card-head h3 {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
}

.mod-badge {
  min-width: 22px;
  height: 22px;
  padding: 0 6px;
  border-radius: 11px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  background: rgba(46, 46, 43, 0.12);
  color: var(--ink);
}

.mod-badge.muted {
  background: rgba(46, 46, 43, 0.06);
  color: var(--ink-soft);
}

.mod-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mod-list li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 13px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.mod-list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.mod-list strong {
  font-weight: 600;
  color: var(--ink);
}

.mod-list span {
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.45;
}

.mod-empty {
  margin: 0;
  padding: 8px 0 0;
  font-size: 12px;
  color: var(--ink-soft);
  border-bottom: none;
}

.mod-suggest-row {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 8px 10px;
}

.mod-suggest-row strong {
  min-width: 0;
  flex: 0 1 auto;
}

.mod-suggest-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.mod-suggest-act,
.mod-suggest-dismiss {
  flex-shrink: 0;
  padding: 2px 8px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--ink-soft);
  font-size: 11px;
  line-height: 1.4;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.mod-suggest-act {
  color: var(--ink);
  border-color: var(--line);
  background: var(--frost-45);
}

.mod-suggest-act:hover {
  background: rgba(46, 46, 43, 0.06);
  border-color: rgba(46, 46, 43, 0.22);
}

.mod-suggest-dismiss:hover {
  color: var(--ink);
  background: rgba(46, 46, 43, 0.05);
  border-color: var(--line);
}

.mod-list li.is-pending {
  opacity: 0.72;
}

.mod-list li.is-draggable {
  cursor: grab;
}

.mod-list li.is-dragging {
  opacity: 0.45;
  cursor: grabbing;
}

.mod-pending-tag {
  flex-shrink: 0;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: rgba(46, 46, 43, 0.04);
  color: var(--ink-soft);
  font-size: 11px;
  line-height: 1.4;
}

.mod-list.check li {
  border-bottom: none;
  padding-bottom: 0;
}

.mod-todo-row {
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 8px 10px;
}

.mod-todo-main {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  min-width: 0;
  flex: 0 1 auto;
}

.mod-list.check input {
  margin-top: 3px;
  flex-shrink: 0;
  cursor: pointer;
  accent-color: var(--cement-deep);
}

.mod-todo-text {
  font-size: 13px;
  line-height: 1.45;
  color: var(--ink-soft);
  user-select: text;
}

.mod-list.check input:checked + .mod-todo-text {
  text-decoration: line-through;
  opacity: 0.55;
}

.mod-todo-item.is-pending .mod-todo-text {
  opacity: 0.85;
  text-decoration: none;
}

.mod-todo-item .mod-suggest-actions {
  margin-top: 1px;
}

/* —— Knowledge / Skills / Meeting / 中轨占位 overlay —— */
.right-pane.is-kb-open .modules-layer,
.right-pane.is-skills-open .modules-layer,
.right-pane.is-meeting-open .modules-layer,
.right-pane.is-placeholder-open .modules-layer {
  visibility: hidden;
  pointer-events: none;
}

.module-placeholder-view {
  position: absolute;
  inset: 0;
  z-index: 4;
  display: flex;
  flex-direction: column;
  background: linear-gradient(165deg, var(--paper-hot) 0%, var(--paper) 55%, var(--cement-fog) 100%);
  color: var(--ink);
  padding: 18px 24px 16px;
  overflow: hidden;
}

[data-theme="su"] .module-placeholder-view,
[data-theme="night"] .module-placeholder-view {
  background: var(--paper-hot);
}

.module-placeholder-view[hidden] {
  display: none !important;
}

.module-placeholder-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  flex-shrink: 0;
}

.module-placeholder-header h2 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--ink);
}

.module-placeholder-body {
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.module-placeholder-body p {
  margin: 0;
  max-width: 28em;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-faint);
  text-align: center;
}

/* —— Responsive —— */
@media (max-width: 900px) {
  .app-shell {
    flex-direction: column;
    padding: 0;
  }

  .chat-fold-rail {
    display: none;
  }

  .app-shell.is-chat-collapsed .chat-pane {
    width: 100%;
    min-width: 0;
    max-width: none;
    height: 50%;
    overflow: hidden;
    pointer-events: auto;
  }

  .chat-pane {
    width: 100%;
    max-width: none;
    height: 50%;
    border-radius: 0;
  }

  .drawer-stack {
    width: 100%;
    max-height: 40%;
    border: none;
    overflow-x: auto;
  }

  .drawer-row {
    min-height: 56px;
  }

  .drawer-flyout {
    max-width: calc(100vw - var(--rail-width) - 72px);
  }

  .right-pane {
    height: auto;
    flex: 1;
    border-radius: 0;
    border: none;
  }

  .modules-body {
    flex-direction: column;
  }

  .session-rail {
    width: 100%;
    max-height: 220px;
  }

  .app-shell.is-chat-collapsed .session-rail {
    width: 100%;
  }

  .app-shell.is-chat-collapsed .modules-overview {
    display: flex;
    flex-direction: column;
    grid-template-columns: none;
    grid-auto-rows: unset;
  }

  .app-shell.is-chat-collapsed .modules-overview .mod-card {
    flex: 1 1 0;
    height: auto;
  }
}