:root {
  color-scheme: light;
  --bg: #eef4ff;
  --panel: #ffffff;
  --line: #dbe3ef;
  --text: #1f2a37;
  --muted: #667085;
  --primary: #1f6feb;
  --primary-soft: #eaf2ff;
  --success: #12b76a;
  --warning: #f59e0b;
  --shadow: 0 18px 50px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(31, 111, 235, 0.12), transparent 28%),
    linear-gradient(180deg, #eef4ff 0%, #f7faff 180px, #eef4ff 100%);
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  width: min(1180px, calc(100vw - 24px));
  margin: 24px auto 48px;
}

.hero-card,
.panel-card {
  background: var(--panel);
  border: 1px solid rgba(219, 227, 239, 0.9);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 24px;
  overflow: hidden;
}

.workbench-card {
  margin: 18px 0;
  padding: 20px;
  background: var(--panel);
  border: 1px solid rgba(219, 227, 239, 0.9);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.entry-tip-card {
  margin: 18px 0;
  padding: 16px 18px;
  background: #ffffff;
  border: 1px solid rgba(219, 227, 239, 0.9);
  border-radius: 18px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand-row,
.panel-head,
.hero-main,
.composer,
.exam-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand-row {
  align-items: flex-start;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--primary);
  font-size: 14px;
  letter-spacing: 0.04em;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 8px;
  font-size: clamp(24px, 3vw, 34px);
}

.subtitle,
.panel-head p,
.helper-text,
.course-meta,
.roadmap-desc,
.answer-source {
  color: var(--muted);
}

.status-stack {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.status-pill,
.mini-pill,
.feature-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 13px;
  white-space: nowrap;
}

.status-pill,
.mini-pill {
  background: var(--primary-soft);
  color: var(--primary);
}

.status-pill.soft {
  background: #f4f7fb;
  color: var(--muted);
}

.hero-main {
  align-items: stretch;
  margin-top: 20px;
  gap: 22px;
}

.avatar-panel {
  position: relative;
  width: min(100%, 360px);
  min-height: 420px;
  display: grid;
  place-items: center;
  border-radius: 28px;
  background:
    radial-gradient(circle at top, rgba(31, 111, 235, 0.18), transparent 40%),
    linear-gradient(180deg, #f6f9ff, #eef5ff 72%, #f7fbff);
  overflow: hidden;
}

.avatar-stage {
  position: relative;
  width: calc(100% - 28px);
  max-width: 308px;
  height: 436px;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 18px 42px rgba(31, 111, 235, 0.18);
  z-index: 1;
  transform: translateY(0) scale(1);
  transition: transform 0.32s ease, filter 0.32s ease;
}

.avatar-3d-mount {
  position: absolute;
  inset: 0;
  z-index: 5;
  min-height: 420px;
  background: transparent;
  pointer-events: auto;
}

/* 强制隐藏：隐藏属性或 2D 回退状态都生效 */
.avatar-3d-mount[hidden],
html[data-avatar3d="fallback"] .avatar-3d-mount,
html[data-avatar3d="error"] .avatar-3d-mount,
html[data-avatar3d="fallback"] .avatar-3d-mount model-viewer,
html[data-avatar3d="error"] .avatar-3d-mount model-viewer {
  display: none !important;
  visibility: hidden !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

.avatar-3d-mount model-viewer {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 420px;
  background: transparent;
}

html[data-avatar3d="loading"] .avatar-stage > :not(.avatar-3d-mount) {
  opacity: 0.18;
}

html[data-avatar3d="ready"] .avatar-stage > :not(.avatar-3d-mount),
html[data-avatar3d="ready"] .avatar-stage-backdrop,
html[data-avatar3d="ready"] .avatar-floor-glow {
  visibility: hidden;
}

html[data-avatar3d="ready"] .avatar-3d-mount,
html[data-avatar3d="ready"] .avatar-3d-mount model-viewer {
  visibility: visible;
  opacity: 1;
}

.avatar-stage-backdrop {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.45), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(17, 24, 39, 0.08));
  z-index: 1;
  pointer-events: none;
}

.avatar-floor-glow {
  position: absolute;
  left: 50%;
  bottom: 18px;
  width: 72%;
  height: 44px;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(31, 111, 235, 0.24), rgba(31, 111, 235, 0.04) 65%, transparent 72%);
  filter: blur(10px);
  z-index: 1;
  pointer-events: none;
}

.avatar-gesture-layer {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}

.avatar-gesture-layer .gesture {
  position: absolute;
  top: 61%;
  width: 42px;
  height: 92px;
  border-radius: 999px;
  border: 2px solid rgba(31, 111, 235, 0.2);
  opacity: 0;
  transform-origin: center center;
  box-shadow: 0 0 18px rgba(31, 111, 235, 0.1);
}

.avatar-gesture-layer .gesture.left {
  left: 28px;
  transform: rotate(18deg);
}

.avatar-gesture-layer .gesture.right {
  right: 28px;
  transform: rotate(-18deg);
}

.avatar-mode-badge {
  position: absolute;
  top: 18px;
  left: 18px;
  z-index: 2;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.78);
  color: #fff;
  font-size: 13px;
  letter-spacing: 0.02em;
}

.avatar-mode-badge::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 8px;
  background: #22c55e;
  box-shadow: 0 0 10px rgba(34, 197, 94, 0.8);
}

.avatar-mode-toggle {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 20;
  min-width: 44px;
  padding: 6px 10px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.55);
  color: #fff;
  font-size: 12px;
  cursor: pointer;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: background 0.2s, transform 0.1s;
}
.avatar-mode-toggle:hover {
  background: rgba(56, 189, 248, 0.45);
}
.avatar-mode-toggle:active {
  transform: scale(0.96);
}

.avatar-glow {
  position: absolute;
  inset: 46px;
  border-radius: 28px;
  background: radial-gradient(circle, rgba(31, 111, 235, 0.08), transparent 72%);
  filter: blur(2px);
}

.avatar-ring {
  position: absolute;
  inset: 32px;
  border-radius: 28px;
  border: 1px dashed rgba(31, 111, 235, 0.24);
  animation: pulse 2.8s infinite;
}

.avatar-panel[data-mode="thinking"] .avatar-ring {
  border-style: solid;
  border-color: rgba(31, 111, 235, 0.38);
  animation: pulse 1.4s infinite;
}

.avatar-panel[data-mode="thinking"] .avatar-stage {
  transform: translateY(-3px) scale(1.01);
  filter: saturate(1.02);
}

.avatar-panel[data-mode="listening"] .avatar-ring {
  border-style: solid;
  border-color: rgba(245, 158, 11, 0.42);
  animation: pulse 1.2s infinite;
}

.avatar-panel[data-mode="listening"] .avatar-stage {
  transform: translateY(-4px) scale(1.015);
}

.avatar-panel[data-mode="speaking"] .avatar-ring {
  border-style: solid;
  border-color: rgba(18, 183, 106, 0.42);
  animation: pulse 0.95s infinite;
}

.avatar-panel[data-mode="speaking"] .avatar-stage {
  transform: translateY(-5px) scale(1.02);
  filter: saturate(1.06);
}

.avatar-panel[data-mode="speaking"] .avatar-photo {
  animation: avatarSpeakBody 1.1s ease-in-out infinite;
}

.avatar-panel[data-mode="idle"] .avatar-state-card {
  background: rgba(15, 23, 42, 0.5);
}

.avatar-panel[data-mode="thinking"] .avatar-state-card {
  background: rgba(31, 111, 235, 0.36);
}

.avatar-panel[data-mode="listening"] .avatar-state-card {
  background: rgba(180, 83, 9, 0.46);
}

.avatar-panel[data-mode="speaking"] .avatar-state-card {
  background: rgba(5, 150, 105, 0.42);
}

.avatar-panel[data-mode="speaking"] .avatar-mouth {
  width: 18px;
  height: 10px;
  border-radius: 48% 48% 58% 58%;
  background: rgba(118, 48, 48, 0.8);
  border: 1px solid rgba(93, 35, 35, 0.55);
  opacity: 0.82;
  animation: mouthTalk 0.54s ease-in-out infinite;
}

.avatar-panel[data-mode="thinking"] .avatar-mouth {
  width: 16px;
  height: 6px;
  opacity: 0.72;
}

.avatar-panel[data-mode="listening"] .avatar-mouth {
  width: 14px;
  height: 10px;
  opacity: 0.7;
  background: rgba(178, 104, 104, 0.92);
}

.avatar-panel[data-mode="listening"] .avatar-eyes .eye,
.avatar-panel[data-mode="thinking"] .avatar-eyes .eye {
  border-color: rgba(58, 41, 28, 0.88);
  opacity: 0.92;
}

.avatar-panel[data-mode="thinking"] .avatar-brows .brow {
  transform: translateY(-2px) rotate(-4deg);
}

.avatar-panel[data-mode="thinking"] .avatar-brows .brow.right {
  transform: translateY(-2px) rotate(4deg);
}

.avatar-panel[data-mode="listening"] .avatar-brows .brow {
  transform: translateY(-1px) scaleX(1.04);
}

.avatar-panel[data-mode="speaking"] .avatar-brows .brow {
  transform: translateY(-1px) scaleX(1.08);
  opacity: 0.88;
}

.avatar-panel[data-mode="speaking"] .avatar-gesture-layer .gesture {
  opacity: 1;
  animation: gestureWave 1s ease-in-out infinite;
}

.avatar-panel[data-mode="speaking"] .avatar-gesture-layer .gesture.right {
  animation-name: gestureWaveRight;
  animation-delay: 0.22s;
}

.avatar-panel[data-mode="listening"] .avatar-gesture-layer .gesture {
  opacity: 0.32;
  animation: gestureListen 1.6s ease-in-out infinite;
}

.avatar-panel[data-mode="listening"] .avatar-gesture-layer .gesture.right {
  animation-name: gestureListenRight;
}

.avatar-panel[data-blink="true"] .avatar-eyes .eye {
  transform: scaleY(0.25);
  opacity: 0.6;
}

.avatar-photo {
  width: 100%;
  height: 100%;
  border-radius: 24px;
  object-fit: cover;
  object-position: center top;
  filter: saturate(1.04) contrast(1.03);
  transform: scale(1.02) translateY(0);
  transform-origin: center center;
  animation: avatarBreath 4.2s ease-in-out infinite;
}

.avatar-photo-full {
  object-fit: contain;
  object-position: center bottom;
  padding: 14px 18px 10px;
  background: radial-gradient(circle at top, rgba(255, 255, 255, 0.62), rgba(255, 255, 255, 0.18) 50%, rgba(255, 255, 255, 0.02) 70%);
}

.avatar-face-layer {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
}

.avatar-brows {
  position: absolute;
  left: 50%;
  top: 18.5%;
  width: 66px;
  transform: translateX(-50%);
  display: flex;
  justify-content: space-between;
}

.avatar-brows .brow {
  width: 22px;
  height: 6px;
  border-top: 2px solid rgba(60, 32, 18, 0.75);
  border-radius: 999px;
  opacity: 0.72;
  transition: transform 0.18s ease, opacity 0.18s ease;
}

.avatar-eyes {
  position: absolute;
  left: 50%;
  top: 21%;
  width: 72px;
  transform: translateX(-50%);
  display: flex;
  justify-content: space-between;
}

.avatar-eyes .eye {
  width: 20px;
  height: 8px;
  border-radius: 999px;
  border-top: 2px solid rgba(58, 41, 28, 0.72);
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
  opacity: 0.86;
  transition: transform 0.16s ease, opacity 0.16s ease, border-color 0.22s ease;
}

.avatar-mouth {
  position: absolute;
  left: 50%;
  top: 25.5%;
  width: 22px;
  height: 5px;
  border-radius: 999px;
  transform: translateX(-50%);
  background: rgba(118, 48, 48, 0.58);
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.12);
  opacity: 0.62;
  transition: all 0.18s ease;
}

.avatar-state-card {
  position: absolute;
  left: 14px;
  right: 14px;
  top: 14px;
  z-index: 3;
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(15, 23, 42, 0.56);
  color: #fff;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.avatar-state-card strong {
  font-size: 14px;
  line-height: 1.2;
}

.avatar-state-card span {
  font-size: 12px;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.86);
}

.avatar-particles {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.avatar-particles span {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(31, 111, 235, 0.24);
  box-shadow: 0 0 16px rgba(31, 111, 235, 0.22);
  animation: floatParticle 5.4s ease-in-out infinite;
}

.avatar-particles span:nth-child(1) { top: 82px; left: 28px; animation-delay: 0s; }
.avatar-particles span:nth-child(2) { top: 134px; right: 34px; animation-delay: 0.8s; }
.avatar-particles span:nth-child(3) { bottom: 108px; left: 40px; animation-delay: 1.4s; }
.avatar-particles span:nth-child(4) { bottom: 150px; right: 42px; animation-delay: 2.1s; }

.avatar-audio-bars {
  position: absolute;
  right: 18px;
  top: 56px;
  z-index: 2;
  display: flex;
  align-items: end;
  gap: 5px;
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(15, 23, 42, 0.28);
  backdrop-filter: blur(6px);
}

.avatar-audio-bars span {
  width: 6px;
  height: 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  transform-origin: bottom;
}

.avatar-panel[data-mode="speaking"] .avatar-audio-bars span,
.avatar-panel[data-mode="listening"] .avatar-audio-bars span {
  animation: audioBars 0.9s infinite ease-in-out;
}

.avatar-panel[data-mode="speaking"] .avatar-audio-bars span:nth-child(2),
.avatar-panel[data-mode="listening"] .avatar-audio-bars span:nth-child(2) {
  animation-delay: 0.12s;
}

.avatar-panel[data-mode="speaking"] .avatar-audio-bars span:nth-child(3),
.avatar-panel[data-mode="listening"] .avatar-audio-bars span:nth-child(3) {
  animation-delay: 0.24s;
}

.avatar-panel[data-mode="speaking"] .avatar-audio-bars span:nth-child(4),
.avatar-panel[data-mode="listening"] .avatar-audio-bars span:nth-child(4) {
  animation-delay: 0.36s;
}

.avatar-panel[data-mode="speaking"] .avatar-audio-bars span:nth-child(5),
.avatar-panel[data-mode="listening"] .avatar-audio-bars span:nth-child(5) {
  animation-delay: 0.48s;
}

.avatar-subtitle {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 2;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(15, 23, 42, 0.74);
  color: #fff;
  font-size: 14px;
  line-height: 1.65;
  backdrop-filter: blur(6px);
  min-height: 48px;
}

.hero-copy {
  flex: 1;
  padding: 8px 0;
  min-width: 0;
}

.greeting-text {
  font-size: clamp(22px, 2.8vw, 32px);
  line-height: 1.6;
  font-weight: 600;
  margin-bottom: 18px;
}

.voice-stage {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(31, 111, 235, 0.08);
  color: var(--primary);
  font-size: 14px;
}

.voice-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
}

.voice-stage.listening .voice-dot,
.voice-stage.speaking .voice-dot {
  animation: voicePulse 1.2s infinite;
}

.voice-stage.listening .voice-dot {
  background: var(--warning);
}

.voice-stage.speaking .voice-dot {
  background: var(--success);
}

.hero-actions,
.quick-tags,
.tab-bar,
.training-grid,
.assistant-strip,
.feature-strip,
.capability-grid {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.model-form {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.dify-config-divider {
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--primary);
  font-weight: 700;
}

.model-field {
  display: grid;
  gap: 8px;
}

.model-field span {
  font-weight: 600;
}

.model-field-inline {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.model-field-inline input[type="checkbox"] {
  width: 20px;
  height: 20px;
  padding: 0;
  accent-color: var(--primary);
  cursor: pointer;
}

.model-field input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #fff;
}

.model-field textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #fff;
  resize: vertical;
  min-height: 120px;
}

.doc-output-card {
  margin-top: 20px;
  padding: 20px;
  background: #f8fbff;
  border: 1px solid var(--line);
  border-radius: 18px;
}

.voice-debug-card {
  margin-top: 16px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #f8fbff;
}

.voice-debug-log {
  min-height: 110px;
  max-height: 220px;
  overflow: auto;
  margin-top: 12px;
  padding: 14px 16px;
  border-radius: 14px;
  background: #111827;
  color: #e5eefb;
  font-size: 13px;
  line-height: 1.75;
  white-space: pre-wrap;
}

.doc-download-area {
  margin-top: 16px;
  display: grid;
  gap: 10px;
}

.download-item {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}

.download-item a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

.feature-strip {
  margin-top: 14px;
}

.feature-chip {
  background: rgba(31, 111, 235, 0.06);
  color: var(--muted);
}

.capability-grid {
  margin-top: 18px;
}

.workbench-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.workbench-item {
  text-align: left;
  padding: 18px;
  border-radius: 18px;
  border: 1px solid rgba(31, 111, 235, 0.14);
  background: linear-gradient(180deg, rgba(31, 111, 235, 0.08), #ffffff);
  color: var(--text);
}

.workbench-item h3 {
  margin-bottom: 8px;
  font-size: 18px;
}

.workbench-item p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.7;
}

.capability-card {
  flex: 1 1 220px;
  min-width: 220px;
  padding: 16px 18px;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(31, 111, 235, 0.08), rgba(255, 255, 255, 0.92));
  border: 1px solid rgba(31, 111, 235, 0.12);
}

.capability-card h3 {
  margin-bottom: 8px;
  font-size: 18px;
}

.capability-card p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.7;
}

.primary-btn,
.secondary-btn,
.tag-btn,
.tab-btn {
  cursor: pointer;
  border: 0;
  border-radius: 14px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.primary-btn,
.secondary-btn {
  padding: 12px 18px;
}

.primary-btn {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 10px 22px rgba(31, 111, 235, 0.24);
}

.secondary-btn {
  background: #f4f7fb;
  color: var(--text);
  border: 1px solid var(--line);
}

.tag-btn {
  padding: 10px 14px;
  background: #fff;
  color: var(--text);
  border: 1px solid var(--line);
}

.tab-bar {
  margin: 18px 0;
}

.tab-btn {
  padding: 12px 20px;
  background: rgba(255, 255, 255, 0.8);
  color: var(--muted);
  border: 1px solid rgba(219, 227, 239, 0.9);
}

.tab-btn.active {
  background: var(--panel);
  color: var(--primary);
  box-shadow: var(--shadow);
}

/* ===== 员工登录层（前台）===== */
.login-gate {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: linear-gradient(135deg, #eef4ff 0%, #f7fbff 60%, #eef7f2 100%);
}

.login-gate[hidden] {
  display: none;
}

.login-card {
  display: grid;
  gap: 12px;
  width: min(400px, 100%);
  padding: 32px;
  background: #fff;
  border-radius: 22px;
  box-shadow: 0 24px 60px rgba(31, 111, 235, 0.18);
}

.login-card h1 {
  margin: 0;
  font-size: 22px;
}

.login-card .eyebrow {
  margin: 0;
}

.login-desc {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.login-card input {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: #fff;
  font-size: 15px;
}

.login-card .primary-btn {
  width: 100%;
}

.login-error {
  margin: 0;
  color: #dc2626;
  font-size: 13px;
}

.login-error[hidden] {
  display: none;
}

.login-foot {
  margin: 4px 0 0;
  text-align: center;
  font-size: 12px;
  color: var(--muted);
}

.logout-btn {
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--muted);
  font-size: 12px;
  cursor: pointer;
  transition: color 0.16s ease, border-color 0.16s ease;
}

.logout-btn:hover {
  color: #dc2626;
  border-color: #fecaca;
}

/* ===== 前台 / 管理后台 分离 ===== */
.tab-bar {
  align-items: center;
  justify-content: flex-start;
}

.tab-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.tab-group-admin {
  padding-left: 14px;
  border-left: 1px dashed rgba(148, 163, 184, 0.6);
  animation: adminFadeIn 0.24s ease;
}

.tab-group-admin[hidden] {
  display: none;
}

.tab-group-caption {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #b45309;
  background: #fff7e8;
  border: 1px solid #fde3b8;
  border-radius: 999px;
  padding: 5px 12px;
}

.admin-entry-btn {
  margin-left: auto;
  padding: 12px 20px;
  border-radius: 14px;
  border: 1px solid rgba(219, 227, 239, 0.9);
  background: rgba(255, 255, 255, 0.8);
  color: var(--muted);
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, color 0.18s ease;
}

.admin-entry-btn:hover {
  transform: translateY(-1px);
  color: var(--primary);
  box-shadow: var(--shadow);
}

.admin-exit-btn {
  padding: 12px 18px;
  border-radius: 14px;
  border: 1px solid #fde3b8;
  background: #fff7e8;
  color: #b45309;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.admin-exit-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

/* 管理后台入口校验弹窗 */
.admin-lock {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(15, 23, 42, 0.46);
  backdrop-filter: blur(3px);
}

.admin-lock[hidden] {
  display: none;
}

.admin-lock-card {
  width: min(420px, 100%);
  background: #fff;
  border-radius: 20px;
  padding: 26px;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.28);
}

.admin-lock-card h3 {
  margin: 0 0 8px;
  font-size: 20px;
}

.admin-lock-desc {
  margin-bottom: 16px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.admin-lock-card input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  font-size: 15px;
}

.admin-lock-actions {
  display: flex;
  gap: 10px;
  margin-top: 14px;
}

.admin-lock-error {
  margin-top: 8px;
  color: #dc2626;
  font-size: 13px;
}

.admin-lock-error[hidden] {
  display: none;
}

@keyframes adminFadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: none; }
}

/* ===== 企业术语表 ===== */
.glossary-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.glossary-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 10px 7px 14px;
  border-radius: 999px;
  background: #f4f7fb;
  border: 1px solid var(--line);
  color: var(--text);
  font-size: 14px;
}

.glossary-chip button {
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 16px;
  line-height: 1;
  padding: 0 2px;
  cursor: pointer;
  transition: color 0.16s ease;
}

.glossary-chip button:hover {
  color: #dc2626;
}

.glossary-empty {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

/* ===== 标准问答库维护 ===== */
.qa-pair-questions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}

.qa-pair-question {
  display: inline-block;
  padding: 5px 10px;
  border-radius: 999px;
  background: #eef4ff;
  border: 1px solid #dbe7fb;
  color: #1d4ed8;
  font-size: 13px;
  line-height: 1.5;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.panel-card {
  padding: 24px;
}

.chat-window {
  margin-top: 20px;
  min-height: 340px;
  max-height: 540px;
  overflow: auto;
  padding: 18px;
  background: #f8fbff;
  border-radius: 18px;
  border: 1px solid var(--line);
}

.message {
  display: flex;
  gap: 12px;
  margin-bottom: 18px;
}

.message:last-child {
  margin-bottom: 0;
}

.message.user {
  flex-direction: row-reverse;
}

.message-badge {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}

.message.bot .message-badge {
  background: var(--primary-soft);
  color: var(--primary);
}

.message.bot.thinking .message-badge {
  background: rgba(31, 111, 235, 0.14);
}

.message.user .message-badge {
  background: #1f2937;
  color: #fff;
}

.message-card {
  max-width: min(760px, 100%);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px 16px;
}

.message.user .message-card {
  background: #1f2937;
  color: #fff;
}

.message-text {
  white-space: pre-wrap;
  line-height: 1.75;
}

.answer-source {
  margin-top: 10px;
  font-size: 12px;
}

.message-actions {
  margin-top: 12px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.message-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(31, 111, 235, 0.08);
  color: var(--primary);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
}

.typing-indicator {
  display: inline-flex;
  gap: 6px;
  align-items: center;
  padding: 12px 14px;
  border-radius: 16px;
  background: #fff;
  border: 1px solid var(--line);
}

.typing-indicator span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  animation: typingDot 1s infinite ease-in-out;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.14s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.28s; }

@keyframes typingDot {
  0%, 80%, 100% { transform: scale(0.5); opacity: 0.4; }
  40% { transform: scale(1); opacity: 1; }
}

.composer {
  margin-top: 16px;
}

.composer input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #fff;
}

.training-grid {
  margin-top: 18px;
}

.training-lecture-card {
  margin-top: 18px;
  padding: 20px;
  border: 1px solid rgba(31, 111, 235, 0.18);
  border-radius: 20px;
  background:
    linear-gradient(135deg, rgba(31, 111, 235, 0.12), rgba(255, 255, 255, 0.96)),
    #fff;
  box-shadow: 0 14px 34px rgba(31, 111, 235, 0.1);
}

.training-lecture-head,
.training-lecture-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.training-lecture-head h3 {
  margin: 10px 0 0;
  font-size: 22px;
}

.training-lecture-body {
  margin-top: 16px;
}

.training-lecture-screen {
  min-height: 150px;
  padding: 20px;
  border-radius: 16px;
  background: rgba(15, 23, 42, 0.88);
  color: #fff;
}

.training-lecture-kicker {
  color: rgba(255, 255, 255, 0.68);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.training-lecture-text {
  margin-top: 12px;
  font-size: 20px;
  line-height: 1.8;
}

.training-lecture-actions {
  justify-content: flex-start;
  margin-top: 16px;
}

.avatar-panel[data-action="intro"] .avatar-stage,
.avatar-panel[data-action="emphasis"] .avatar-stage {
  animation: avatarLectureEmphasis 1.2s ease-in-out infinite;
}

.avatar-panel[data-action="explain"] .avatar-stage,
.avatar-panel[data-action="summary"] .avatar-stage {
  animation: avatarLectureExplain 1.6s ease-in-out infinite;
}

.avatar-panel[data-action="review"] .avatar-stage {
  animation: avatarLectureReview 1.8s ease-in-out infinite;
}

.course-card,
.roadmap-item,
.exam-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
}

.course-card {
  width: min(100%, 340px);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.course-card.done {
  border-color: rgba(18, 183, 106, 0.35);
  background: #f6fffb;
}

.course-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.course-title {
  margin: 0;
  font-size: 18px;
}

.bullet-list {
  margin: 0;
  padding-left: 18px;
  line-height: 1.8;
}

.exam-list {
  margin-top: 18px;
  display: grid;
  gap: 16px;
}

.option-row {
  display: block;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--line);
  margin-bottom: 10px;
}

.option-row input {
  margin-right: 10px;
}

.roadmap-block {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.knowledge-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin: 18px 0;
}

.knowledge-metric,
.knowledge-upload-box,
.knowledge-list-wrap {
  border: 1px solid var(--line);
  background: #f8fbff;
  border-radius: 12px;
  padding: 16px;
}

.knowledge-metric span,
.knowledge-row span {
  display: block;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.knowledge-metric strong {
  display: block;
  margin-top: 8px;
  font-size: 22px;
  color: var(--text);
}

.knowledge-upload-box { margin-top: 16px; }
.knowledge-list-wrap { margin-top: 16px; background: #fff; }
.knowledge-list { display: grid; gap: 10px; margin-top: 12px; }
.knowledge-row { padding: 12px; border: 1px solid var(--line); border-radius: 10px; }
.knowledge-row.isolated { border-color: rgba(220, 38, 38, 0.35); background: #fff7f7; }

.roadmap-item h3 {
  margin-bottom: 8px;
}

.roadmap-tag-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.roadmap-tag {
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  background: #eef4ff;
  color: #335ea8;
}

.roadmap-tag.pending {
  background: #fff7e8;
  color: #b56a00;
}

.roadmap-tag.done {
  background: #ecfdf3;
  color: #087443;
}

.primary-btn:hover,
.secondary-btn:hover,
.tag-btn:hover,
.tab-btn:hover {
  transform: translateY(-1px);
}

.primary-btn:disabled,
.secondary-btn:disabled {
  cursor: wait;
  opacity: 0.62;
  transform: none;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.72; }
  50% { transform: scale(1.02); opacity: 1; }
}

@keyframes avatarBreath {
  0%, 100% { transform: scale(1.02) translateY(0); }
  50% { transform: scale(1.03) translateY(-4px); }
}

@keyframes avatarSpeakBody {
  0%, 100% { transform: scale(1.02) translate(0, 0); }
  50% { transform: scale(1.025) translate(1px, -2px); }
}

@keyframes avatarLectureEmphasis {
  0%, 100% { transform: translateY(-5px) scale(1.02) rotate(0deg); }
  50% { transform: translateY(-7px) scale(1.025) rotate(-0.4deg); }
}

@keyframes avatarLectureExplain {
  0%, 100% { transform: translateY(-5px) scale(1.02) rotate(0deg); }
  50% { transform: translateY(-6px) scale(1.02) rotate(0.35deg); }
}

@keyframes avatarLectureReview {
  0%, 100% { transform: translateY(-5px) scale(1.02); }
  50% { transform: translateY(-3px) scale(1.015); }
}

@keyframes voicePulse {
  0% { box-shadow: 0 0 0 0 rgba(31, 111, 235, 0.24); }
  70% { box-shadow: 0 0 0 12px rgba(31, 111, 235, 0); }
  100% { box-shadow: 0 0 0 0 rgba(31, 111, 235, 0); }
}

@keyframes audioBars {
  0%, 100% { height: 10px; opacity: 0.55; }
  50% { height: 28px; opacity: 1; }
}

@keyframes mouthTalk {
  0%, 100% {
    transform: translateX(-50%) scaleX(0.82) scaleY(0.78);
    border-radius: 999px;
  }
  50% {
    transform: translateX(-50%) scaleX(1.12) scaleY(1.28);
    border-radius: 48% 48% 58% 58%;
  }
}

@keyframes floatParticle {
  0%, 100% { transform: translateY(0) scale(0.95); opacity: 0.28; }
  50% { transform: translateY(-12px) scale(1.18); opacity: 0.7; }
}

@keyframes gestureWave {
  0%, 100% { transform: rotate(16deg) translateY(0) scale(0.96); opacity: 0.3; }
  50% { transform: rotate(6deg) translateY(-8px) scale(1.08); opacity: 0.9; }
}

@keyframes gestureWaveRight {
  0%, 100% { transform: rotate(-16deg) translateY(0) scale(0.96); opacity: 0.3; }
  50% { transform: rotate(-6deg) translateY(-8px) scale(1.08); opacity: 0.9; }
}

@keyframes gestureListen {
  0%, 100% { transform: rotate(14deg) translateY(0); opacity: 0.22; }
  50% { transform: rotate(10deg) translateY(-4px); opacity: 0.55; }
}

@keyframes gestureListenRight {
  0%, 100% { transform: rotate(-14deg) translateY(0); opacity: 0.22; }
  50% { transform: rotate(-10deg) translateY(-4px); opacity: 0.55; }
}

@media (max-width: 900px) {
  .hero-main,
  .brand-row,
  .panel-head,
  .composer,
  .exam-actions,
  .entry-tip-card {
    flex-direction: column;
    align-items: stretch;
  }

  .brand-row {
    align-items: flex-start;
  }

  .app-shell {
    width: min(100vw - 16px, 1180px);
    margin: 16px auto 32px;
  }

  .hero-card,
  .panel-card {
    padding: 18px;
  }

  .avatar-panel {
    width: 100%;
    min-height: 280px;
  }

  .avatar-stage {
    max-width: none;
    height: 420px;
  }

  .avatar-brows {
    top: 18%;
  }

  .avatar-eyes {
    top: 20.5%;
  }

  .training-lecture-text {
    font-size: 17px;
  }
}

/* ===== 企业知识条目管理 ===== */

.kb-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 14px;
}

.kb-search {
  flex: 1 1 240px;
  min-width: 0;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
}

.kb-select {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
}

.kb-search:focus,
.kb-select:focus,
.kb-import-text:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
}

.kb-editor {
  padding: 16px;
  margin-bottom: 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fafcff;
}

.kb-editor h3 {
  margin: 0 0 14px;
  font-size: 16px;
}

.kb-editor-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.kb-span-2 {
  grid-column: 1 / -1;
}

.kb-editor .model-field textarea,
.kb-import-text {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 14px;
  font-family: inherit;
  line-height: 1.6;
  resize: vertical;
  background: #fff;
}

.kb-import-text {
  margin-bottom: 12px;
}

.kb-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.kb-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: flex-start;
  justify-content: space-between;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}

.kb-row.disabled {
  opacity: 0.55;
  background: #f7f9fc;
}

.kb-row-main {
  flex: 1 1 260px;
  min-width: 0;
}

.kb-row-title {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
}

.kb-row-meta {
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.7;
  word-break: break-word;
}

.kb-row-answer {
  margin-top: 6px;
  font-size: 13px;
  color: var(--text);
  line-height: 1.7;
  max-height: 3.4em;
  overflow: hidden;
  word-break: break-word;
}

.kb-row-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.kb-tag {
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: var(--primary-soft);
  color: var(--primary);
}

.kb-tag.off {
  background: #f2f4f7;
  color: var(--muted);
}

.kb-tag.builtin {
  background: #e7f6ef;
  color: var(--success);
}

.kb-tag.synced {
  background: #ecfdf3;
  color: #087443;
}

.kb-tag.pending-sync {
  background: #fff7ed;
  color: #b45309;
}

.kb-empty {
  padding: 28px 16px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
  border: 1px dashed var(--line);
  border-radius: 12px;
}

.kb-test-result {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.kb-test-item {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  font-size: 13.5px;
}

.kb-test-item.top {
  border-color: var(--primary);
  background: var(--primary-soft);
}

.kb-test-miss {
  padding: 14px;
  border-radius: 10px;
  background: #fff8eb;
  border: 1px solid #fde3b2;
  color: #8a5a00;
  font-size: 13.5px;
  line-height: 1.7;
}

.kb-score {
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
}

@media (max-width: 720px) {
  .kb-editor-grid {
    grid-template-columns: 1fr;
  }

  .kb-row-actions {
    width: 100%;
  }
}

/* ===== 问答审核（纠错闭环） ===== */

.qa-review-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.qa-review-filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.chip-btn {
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  cursor: pointer;
  font-size: 14px;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.chip-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.qa-review-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.qa-review-actions input {
  padding: 11px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #fff;
  font-family: inherit;
}

.qa-review-list {
  display: grid;
  gap: 14px;
  margin-top: 16px;
}

.qa-review-item {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px 18px;
  background: #fff;
}

.qa-review-item-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  flex-wrap: wrap;
}

.qa-review-question {
  font-weight: 700;
  font-size: 15px;
  line-height: 1.6;
  margin: 0;
}

.qa-review-meta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--muted);
  margin-top: 6px;
}

.qa-review-answer {
  margin-top: 10px;
  padding: 12px 14px;
  background: #f7f9fc;
  border-radius: 12px;
  line-height: 1.7;
  font-size: 14px;
  white-space: pre-wrap;
  color: var(--text);
}

.qa-review-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}

.qa-review-badge.pending {
  background: #fff7ed;
  color: #b45309;
}

.qa-review-badge.reviewed {
  background: #ecfdf3;
  color: #087443;
}

.qa-review-edit {
  margin-top: 12px;
  display: grid;
  gap: 10px;
}

.qa-review-edit textarea {
  width: 100%;
  min-height: 96px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  font-family: inherit;
  font-size: 14px;
  line-height: 1.7;
  resize: vertical;
  background: #fff;
}

.qa-review-confirm {
  padding: 10px 12px;
  border-radius: 12px;
  background: #fff7ed;
  color: #b45309;
  font-size: 13px;
  line-height: 1.6;
}

.qa-review-empty {
  padding: 28px;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: 16px;
}

@media (max-width: 720px) {
  .qa-review-toolbar,
  .qa-review-actions {
    width: 100%;
  }

  .qa-review-actions input {
    flex: 1;
    min-width: 0;
  }
}

/* ===== 知识录入工作台 ===== */

.ingest-summary {
  margin: 4px 0 16px;
  padding: 12px 14px;
  background: #f7f9fc;
  border-radius: 12px;
  color: var(--text);
  line-height: 1.7;
  font-size: 14px;
}

.ingest-section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 18px 0 10px;
  font-size: 15px;
}

.ingest-count {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
}

.ingest-list {
  display: grid;
  gap: 12px;
}

.ingest-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
  background: #fff;
  display: grid;
  gap: 10px;
}

.ingest-card input[type="text"],
.ingest-card textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  font-family: inherit;
  font-size: 14px;
  line-height: 1.7;
  background: #fff;
}

.ingest-card textarea {
  min-height: 84px;
  resize: vertical;
}

.ingest-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.ingest-card-label {
  font-size: 12px;
  color: var(--muted);
  font-weight: 600;
}

.ingest-remove {
  padding: 6px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #fff;
  color: #b42318;
  cursor: pointer;
  font-size: 13px;
  white-space: nowrap;
}

.ingest-empty {
  padding: 20px;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: 14px;
}

@media (max-width: 720px) {
  .ingest-card-head {
    flex-wrap: wrap;
  }
}