:root {
  --bg-primary: hsl(220, 20%, 98%);
  --bg-surface: hsl(0, 0%, 100%);
  --bg-surface-elevated: hsl(220, 20%, 96%);
  --bg-card: hsl(0, 0%, 100%);
  --border-color: hsl(220, 15%, 88%);
  --border-subtle: hsl(220, 15%, 92%);

  --text-primary: hsl(220, 30%, 12%);
  --text-secondary: hsl(220, 15%, 45%);
  --text-tertiary: hsl(220, 10%, 65%);

  --brand-primary: hsl(212, 95%, 48%);
  --brand-hover: hsl(212, 95%, 42%);
  --brand-light: hsl(212, 90%, 95%);

  --color-omlx: hsl(158, 75%, 38%);
  --color-omlx-light: hsl(158, 75%, 94%);
  --color-aliyun: hsl(24, 90%, 50%);
  --color-aliyun-light: hsl(24, 90%, 95%);

  --recording-color: hsl(0, 84%, 55%);
  --recording-glow: hsla(0, 84%, 55%, 0.25);
  --success-color: hsl(145, 65%, 42%);
  --warning-color: hsl(38, 92%, 50%);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: hsl(222, 24%, 10%);
    --bg-surface: hsl(222, 22%, 14%);
    --bg-surface-elevated: hsl(222, 20%, 18%);
    --bg-card: hsl(222, 20%, 16%);
    --border-color: hsl(222, 16%, 24%);
    --border-subtle: hsl(222, 16%, 19%);

    --text-primary: hsl(220, 25%, 96%);
    --text-secondary: hsl(220, 15%, 68%);
    --text-tertiary: hsl(220, 10%, 48%);

    --brand-primary: hsl(212, 95%, 58%);
    --brand-hover: hsl(212, 95%, 65%);
    --brand-light: hsla(212, 95%, 58%, 0.15);

    --color-omlx: hsl(158, 75%, 48%);
    --color-omlx-light: hsla(158, 75%, 48%, 0.15);
    --color-aliyun: hsl(24, 95%, 58%);
    --color-aliyun-light: hsla(24, 95%, 58%, 0.15);

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
  }
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  height: 100dvh;
  display: flex;
  justify-content: center;
  overflow: hidden;
}

/* 主应用容器 - 移动端竖屏居中优先 */
.app-container {
  width: 100%;
  max-width: 1080px;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-surface);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

/* 顶部导航与状态栏 */
.app-header {
  padding: 12px 16px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  z-index: 10;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  width: 32px;
  height: 32px;
  background: var(--brand-primary);
  color: white;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: bold;
}

.brand-info h1 {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.2px;
}

.brand-status {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--text-secondary);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--text-tertiary);
  transition: background-color 0.3s;
}

.status-dot.active {
  background-color: var(--success-color);
  box-shadow: 0 0 6px var(--success-color);
}

.status-dot.recording {
  background-color: var(--recording-color);
  box-shadow: 0 0 8px var(--recording-color);
  animation: pulse-dot 1.2s infinite;
}

@keyframes pulse-dot {
  0% { transform: scale(0.9); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 1; }
  100% { transform: scale(0.9); opacity: 0.8; }
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.icon-btn {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: all 0.2s;
}

.icon-btn:hover {
  background: var(--border-color);
}

/* 控制配置面板 (可折叠抽屉) */

/* Provider 引擎分段选择器 */
.segmented-control {
  display: flex;
  background: var(--bg-surface);
  padding: 3px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.segmented-option {
  flex: 1;
  text-align: center;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.2s ease;
  user-select: none;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.segmented-option.selected {
  background: var(--brand-primary);
  color: #fff;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.segmented-option.selected.omlx-badge {
  background: var(--color-omlx);
}

.segmented-option.selected.aliyun-badge {
  background: var(--color-aliyun);
}

/* VAD 与参数配置网格 */

.setting-item {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

/* .setting-item 的 display:flex 会盖过 UA 的 [hidden]（同 tab-pane/modal-mask 的坑），
   渠道专属项的显隐必须显式压回来 */
.setting-item[hidden] {
  display: none;
}

/* 设置项标签行：label 与行内小按钮（如示例填入）同行排布，窄屏 label 换行不挤压按钮 */
.setting-item-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.setting-item-header label {
  flex: 1;
  min-width: 0;
}

/* 行内小按钮（调试预置入口，放客户端不进服务端契约） */
.mini-btn {
  flex-shrink: 0;
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--brand-primary);
  font-size: 12px;
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.mini-btn:hover {
  border-color: var(--brand-primary);
  background: var(--brand-light);
}

.setting-item label {
  color: var(--text-secondary);
  font-size: 12px;
  display: flex;
  justify-content: space-between;
}

/* 复选框整行可点（勾选框 + 说明文字横向排列） */
.setting-item label.checkbox-line {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  line-height: 1.4;
}

.setting-item label.checkbox-line input[type="checkbox"] {
  width: 15px;
  height: 15px;
  accent-color: var(--brand-primary);
  flex-shrink: 0;
}

/* 采样参数行首：勾选框 + 参数名 + 当前值徽章 一行排布 */
.param-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.param-line label.checkbox-line {
  flex: 1;
  min-width: 0;
}

/* 勾选取消后滑块置灰不可拖（值保留，重新勾选即恢复） */
.range-slider:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.range-slider-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.range-slider {
  flex: 1;
  height: 6px;
  -webkit-appearance: none;
  background: var(--border-color);
  border-radius: 3px;
  outline: none;
}

.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--brand-primary);
  cursor: pointer;
}

.value-badge {
  font-family: var(--font-mono);
  font-size: 12px;
  background: var(--border-subtle);
  padding: 2px 6px;
  border-radius: 4px;
  min-width: 45px;
  text-align: center;
}

/* 核心转写流展示区 (可滚动) */
.transcript-viewport {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scroll-behavior: smooth;
}

/* 空状态欢迎引导 */
.empty-state {
  margin: auto;
  text-align: center;
  color: var(--text-tertiary);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  max-width: 320px;
}

.empty-icon {
  font-size: 42px;
  opacity: 0.6;
}

.empty-state h3 {
  font-size: 15px;
  color: var(--text-secondary);
}

.empty-state p {
  font-size: 13px;
  line-height: 1.5;
}

/* 句子气泡卡片 */
.sentence-bubble {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 6px;
  animation: fadeIn 0.25s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.bubble-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-tertiary);
}

.sentence-tag {
  font-family: var(--font-mono);
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--border-subtle);
  color: var(--text-secondary);
}

.sentence-text {
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-primary);
  word-break: break-word;
}

/* 实时正在说话中的动态气泡 */
.live-speech-bubble {
  background: var(--brand-light);
  border: 1px dashed var(--brand-primary);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  animation: glowPulse 2s infinite ease-in-out;
}

@keyframes glowPulse {
  0% { border-color: var(--brand-primary); }
  50% { border-color: transparent; }
  100% { border-color: var(--brand-primary); }
}

.live-speech-bubble .sentence-text {
  color: var(--brand-primary);
  font-weight: 500;
}

/* 打字机光标 */
.cursor-typing {
  display: inline-block;
  width: 2px;
  height: 16px;
  background-color: var(--brand-primary);
  vertical-align: middle;
  margin-left: 2px;
  animation: blink 0.8s infinite;
}

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

/* 底部交互区 (适配移动端单手操作) */

/* 实时波形 Canvas */
.waveform-canvas {
  width: 100%;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-elevated);
}

/* 录音主控台 */
.record-controls {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.stats-info {
  font-size: 12px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* 大录音按钮 */
.mic-btn-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.record-btn {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--brand-primary);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  outline: none;
}

.record-btn:active {
  transform: scale(0.92);
}

.record-btn.recording {
  background: var(--recording-color);
  box-shadow: 0 0 20px var(--recording-glow);
  transform: scale(1.05);
}

.record-pulse-ring {
  position: absolute;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 2px solid var(--recording-color);
  opacity: 0;
  pointer-events: none;
}

.record-btn.recording ~ .record-pulse-ring {
  animation: pulse-ring 1.5s cubic-bezier(0.215, 0.61, 0.355, 1) infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(0.8); opacity: 0.8; }
  100% { transform: scale(1.4); opacity: 0; }
}

.action-tools {
  display: flex;
  gap: 8px;
}

/* 吐司提示 (Toast) */
.toast-msg {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  background: rgba(0, 0, 0, 0.85);
  color: white;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 13px;
  pointer-events: none;
  opacity: 0;
  transition: all 0.3s;
  z-index: 100;
}

.toast-msg.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ── 模式切换标签（ASR / TTS） ─────────────────────────────── */

.mode-tabs {
  display: flex;
  gap: 8px;
  padding: 0 16px;
  margin-top: 10px;
}

.mode-tab {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s ease;
}

.mode-tab.selected {
  background: var(--brand-light);
  border-color: var(--brand-primary);
  color: var(--brand-primary);
}

/* ── TTS 语音合成面板 ──────────────────────────────────────── */


.tts-meta-row {
  display: flex;
  justify-content: flex-end;
  margin-top: 4px;
  font-size: 12px;
  color: var(--text-tertiary);
}

.tts-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

.tts-primary-btn {
  flex: 1;
  padding: 12px;
  border: none;
  border-radius: var(--radius-md);
  background: var(--brand-primary);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.18s ease;
}

.tts-primary-btn:hover:not(:disabled) {
  background: var(--brand-hover);
}

.tts-primary-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.tts-status {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  min-height: 20px;
}

/* ── TTS 模式：面板内容超出视口时容器整体可滚动 ─────────────── */


/* ── 文件转写（批量转写测试入口）：结果全文区 ───────────────── */

.tr-result {
  padding: 12px 14px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  color: var(--text-primary);
  font-size: 15px;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 46vh;
  overflow-y: auto;
  user-select: text;
  -webkit-user-select: text;
}

/* ── 会话 ID 复制按钮（TTS 状态区 / ASR 录音卡通用） ────────── */

.copy-id-btn {
  padding: 2px 10px;
  margin-left: 4px;
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-full);
  background: var(--bg-surface);
  color: var(--brand-primary);
  font-size: 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  cursor: pointer;
  vertical-align: middle;
  transition: all 0.15s ease;
}

.copy-id-btn:hover {
  border-style: solid;
  border-color: var(--brand-primary);
  background: var(--brand-light);
}

/* ── ASR 录音卡：会话 ID 常驻行 ────────────────────────────── */

.asr-session-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

.asr-session-row .copy-id-btn {
  margin-left: 0;
}

/* ── 品牌副标 ─────────────────────────────────────────────── */

.brand-tag {
  margin-left: 10px;
  padding: 2px 8px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 500;
  color: var(--text-tertiary);
  vertical-align: middle;
  white-space: nowrap;
}

/* ═══ 布局重构：双 tab + PC 两栏 + 移动单列 ═══════════════════ */

/* 选项卡 */
.tab-content {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.tab-pane {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  padding: 0 16px 16px;
}

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

/* 侧栏卡片 */
.side-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.side-card-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

/* ── ASR 布局：移动单列（记录区定高内部滚动 + 整栏可滚，控制卡始终可达） ── */
.asr-layout {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-top: 14px;
  /* 手机浏览器地址栏挤占高度时，设置/录音卡会被推出视口——整栏放通滚动兜底 */
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.asr-layout .transcript-viewport {
  /* 移动端不弹性抢占剩余高度（否则控制卡被压出视口），按视口比例定高、自身内部滚动 */
  flex: none;
  height: 42dvh;
  min-height: 170px;
}

.asr-side {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.record-card {
  gap: 8px;
}

/* ── TTS 布局：整体可滚动 ── */
.tts-layout {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-top: 14px;
}

.tts-main {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.tts-side {
  display: flex;
  flex-direction: column;
}

/* ── PC（≥860px）：两栏布局 ── */
@media (min-width: 860px) {
  .app-container {
    margin: 0 auto;
    border-left: 1px solid var(--border-subtle);
    border-right: 1px solid var(--border-subtle);
  }

  .asr-layout {
    flex-direction: row;
    align-items: stretch;
  }

  .asr-layout .transcript-viewport {
    flex: 1;
    min-width: 0;
    height: auto; /* 覆盖移动端定高：PC 随容器拉伸，矮窗时由整栏滚动兜底 */
  }

  .asr-side {
    width: 340px;
    flex-shrink: 0;
  }

  .record-card {
    /* 录音卡已置于侧栏首位：矮窗滚动时钉在顶部保持可达（原 bottom 对应旧居底位次） */
    position: sticky;
    top: 0;
  }

  .tts-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    align-items: start;
  }

  .tts-side {
    position: sticky;
    top: 0;
  }

  #tts-text {
    min-height: 220px;
  }

  /* PC 下收窄字号密度 */
  .sentence-text {
    font-size: 15px;
  }
}

/* ── 设置弹窗 ── */
.modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}

.modal-mask[hidden] {
  display: none;
}

.modal-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.modal-title {
  font-size: 16px;
  margin: 0;
}

.modal-hint {
  margin: 6px 0 0;
  font-size: 12px;
  color: var(--text-tertiary);
  line-height: 1.5;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 4px;
}

.modal-btn {
  padding: 8px 18px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-primary);
  transition: all 0.15s ease;
}

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

.modal-btn.primary:hover {
  background: var(--brand-hover);
}

.modal-btn.secondary:hover {
  border-color: var(--text-tertiary);
}

/* 弹窗内输入控件统一 */
.modal-card select,
.modal-card input[type='text'],
.modal-card input[type='password'],
.tts-side select,
.tts-side input[type='number'],
.tts-side input[type='text'],
.tts-side textarea,
.asr-side select,
.asr-side input[type='text'],
.asr-side textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-primary);
  font-size: 13px;
}