/* Base */
:root {
  --bg: #ffffff;
  --text: #000000;
  --text-secondary: #666666;
  --primary: #000000;
  --accent: #e91e63;
  --border: #e0e0e0;
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  --radius: 12px;
  --radius-large: 20px;
  --font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  
  /* 统一 Popover 令牌 */
  --pop-radius: 14px;
  --pop-shadow: 0 8px 32px rgba(0,0,0,.06);
  --pop-border: var(--border);
  --pop-bg: #fff;
  --pop-gap: 8px;
}

/* 深色主题变量 */
.dark {
  --bg: #1a1a1d;
  --bg-secondary: #242428;
  --bg-tertiary: #2d2d32;
  --text: #ffffff;
  --text-secondary: #a8a8a8;
  --text-muted: #6b6b6b;
  --primary: #ffffff;
  --accent: #e91e63; /* 品牌色保持一�?*/
  --accent-hover: #c2185b;
  --border: #3a3a3f;
  --border-light: #4a4a4f;
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-light: 0 4px 16px rgba(0,0,0,0.3);
}

/* 自动主题：跟随系统偏�?*/
@media (prefers-color-scheme: dark) {
  .auto-theme {
    --bg: #1a1a1d;
    --bg-secondary: #242428;
    --bg-tertiary: #2d2d32;
    --text: #ffffff;
    --text-secondary: #a8a8a8;
    --text-muted: #6b6b6b;
    --primary: #ffffff;
    --accent: #e91e63; /* 品牌色保持一�?*/
    --accent-hover: #c2185b;
    --border: #3a3a3f;
    --border-light: #4a4a4f;
    --shadow: 0 8px 32px rgba(0,0,0,0.4);
    --shadow-light: 0 4px 16px rgba(0,0,0,0.3);
  }
}

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

html, body { 
  height: 100%; 
  font-family: var(--font-family);
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden; /* 防止水平滚动�?*/
  overflow-y: auto; /* 允许垂直滚动 */
}

/* App frame: sidebar + content */
.app-frame { display: flex; min-height: 100vh; overflow: visible; }

/* Sidebar base */
.lh-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  width: 192px; /* Expanded (reduced by half) */
  flex: 0 0 auto;
  border-right: 1px solid var(--border);
  background: transparent;
  box-shadow: none;
  transition: width 0.15s cubic-bezier(0.4, 0.0, 0.2, 1);
  will-change: width;
  z-index: 50;
  overflow: visible;
  /* 性能优化：启用GPU加�?*/
  transform: translateZ(0);
  backface-visibility: hidden;
  perspective: 1000px;
}

/* 临时禁用动画�?*/
.lh-sidebar.no-anim { transition: none !important; }

/* 性能优化：低性能设备禁用复杂动画 */
@media (prefers-reduced-motion: reduce) {
  .lh-sidebar {
    transition: none !important;
  }
  
  .lh-sidebar .nav-item .label {
    transition: none !important;
  }
  
  .lh-sidebar .brand-name {
    transition: none !important;
  }
}

/* 性能优化：检测设备性能，自动调整动画复杂度 */
.lh-sidebar.perf-low {
  transition: width 0.1s ease-out !important;
}

.lh-sidebar.perf-low .nav-item .label {
  transition: opacity 0.1s ease-out, transform 0.1s ease-out, width 0.1s ease-out !important;
}

.lh-sidebar.perf-low .brand-name {
  transition: opacity 0.1s ease-out, width 0.1s ease-out !important;
}

/* 性能优化：减少重排重�?*/
.lh-sidebar .sidebar-inner { 
  height: 100%; 
  display: flex; 
  flex-direction: column; 
  padding: 16px 12px; 
  gap: 12px; 
  overflow: visible;
  /* 启用GPU加�?*/
  transform: translateZ(0);
  will-change: transform;
}

/* 优化品牌行动�?*/
.lh-sidebar .brand-row { 
  display: flex; 
  align-items: center; 
  justify-content: space-between; 
  padding: 8px; 
  height: 48px; 
  border-radius: 10px;
  /* 启用GPU加�?*/
  transform: translateZ(0);
  will-change: transform;
}

/* 优化品牌名称动画 */
.lh-sidebar .brand-name { 
  font-weight: 600; 
  font-size: 14px; 
  letter-spacing: -0.2px;
  /* 启用GPU加�?*/
  transform: translateZ(0);
  will-change: transform, opacity, width;
}

/* 优化导航项标签动�?*/
.lh-sidebar .nav-item .label { 
  opacity: 1; 
  transform: translateX(0); 
  transition: opacity .15s cubic-bezier(0.4, 0.0, 0.2, 1), 
              transform .15s cubic-bezier(0.4, 0.0, 0.2, 1), 
              width .15s cubic-bezier(0.4, 0.0, 0.2, 1);
  /* 性能优化：使用更高效的动画属�?*/
  contain: layout style paint; 
  white-space: nowrap; 
  overflow: hidden; 
  font-size: 14px;
  font-weight: 500;
  font-family: var(--font-family);
  line-height: 1.4;
  letter-spacing: -0.01em;
  /* 启用GPU加�?*/
  transform: translateZ(0);
  will-change: transform, opacity, width;
}

.lh-sidebar .brand-row { display: flex; align-items: center; justify-content: space-between; padding: 8px; height: 48px; border-radius: 10px; }
.lh-sidebar .brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); background: none; border: 0; cursor: pointer; }
.lh-sidebar .brand-icon { font-size: 20px; color: var(--accent); }
.lh-sidebar .brand-name { font-weight: 600; font-size: 14px; letter-spacing: -0.2px; }
.lh-sidebar .toggle-btn { width: 32px; height: 32px; border-radius: 8px; background: transparent; border: 0; color: var(--text); cursor: pointer; transition: background 0.16s ease, transform 0.2s ease; }
.lh-sidebar .toggle-btn:hover { background: rgba(0,0,0,0.06); transform: scale(1.05); }

.nav-section { display: flex; flex-direction: column; gap: 4px; margin-top: 4px; }
.nav-section + .nav-section { margin-top: 12px; }
.nav-item { position: relative; display: grid; grid-template-columns: 44px 1fr; align-items: center; justify-items: start; column-gap: 0; height: 40px; border-radius: 10px; padding: 0 8px 0 0; color: rgba(0,0,0,0.7); text-decoration: none; cursor: pointer; transition: background 0.16s ease, color 0.16s ease, transform 0.2s ease; border: 0; background: transparent; -webkit-appearance: none; appearance: none; text-align: left; width: 100%; overflow: visible; }
.lh-sidebar [data-tooltip] { position: relative; }
/* === Sidebar icon normalization === */
.lh-sidebar .nav-item .nav-ico,
.lh-sidebar .nav-item .icon,
.lh-sidebar .nav-item svg {
  width: 24px;
  height: 24px;
  display: block;          /* 避免 inline 基线干扰 */
  align-self: center;      /* 垂直居中到网格单�?*/
  justify-self: center;    /* 水平居中到网格单�?*/
  flex-shrink: 0;
  color: currentColor;
  /* 确保图标�?4px列中完美居中 */
  margin: 0 auto;
}

/* === Sidebar button font normalization === */
.lh-sidebar .nav-item {
  font-family: var(--font-family);
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

/* --- Sidebar icons: unify color + animation --- */
.lh-sidebar .nav-item .nav-ico,
.lh-sidebar .nav-item .icon,
.lh-sidebar .nav-item svg {
  width: 24px;
  height: 24px;
  display: block;
  color: currentColor;                 /* 跟随文字�?*/
  transition: transform .2s ease, color .2s ease, fill .2s ease;
}

/* 强制所�?SVG 子元素使�?currentColor，覆盖各自的 fill 属�?*/
.lh-sidebar .nav-item svg *,
.lh-sidebar .nav-item .icon * {
  fill: currentColor;
  stroke: currentColor;
}

/* 例外：帮助和反馈按钮保持原始样式 */
.lh-sidebar .nav-item[href="#help"] .nav-ico,
.lh-sidebar .nav-item[href="#feedback"] .nav-ico {
  color: inherit;
}

.lh-sidebar .nav-item[href="#help"] .nav-ico *,
.lh-sidebar .nav-item[href="#feedback"] .nav-ico * {
  fill: none;
  stroke: currentColor;
}

/* 收起态时，让"积分"项遵循与其它项相同的两列网格（图�?/ 文本=0�?*/
.lh-sidebar.is-collapsed #nav-credits {
  grid-template-columns: 1fr 0;  /* 与通用收起规则一�?*/
  justify-items: center;
  padding-right: 0;
}

.lh-sidebar .nav-item .label {
  font-family: inherit;
  font-weight: inherit;
  line-height: inherit;
  letter-spacing: inherit;
}

/* 深色模式下的侧边栏图标优�?*/
.dark .lh-sidebar .nav-item .nav-ico,
.dark .lh-sidebar .nav-item .icon,
.dark .lh-sidebar .nav-item svg {
  color: var(--text-secondary);
  stroke: var(--text-secondary);
  fill: var(--text-secondary);
}

.dark .lh-sidebar .nav-item:hover .nav-ico,
.dark .lh-sidebar .nav-item:hover .icon,
.dark .lh-sidebar .nav-item:hover svg {
  color: var(--text);
  stroke: var(--text);
  fill: var(--text);
}

.dark .lh-sidebar .nav-item.is-active .nav-ico,
.dark .lh-sidebar .nav-item.is-active .icon,
.dark .lh-sidebar .nav-item.is-active svg {
  color: var(--accent);
  stroke: var(--accent);
  fill: var(--accent);
}
.nav-item .label { 
  opacity: 1; 
  transform: translateX(0); 
  transition: opacity .2s ease-out, transform .2s ease-out, width .2s ease-out; 
  white-space: nowrap; 
  overflow: hidden; 
  font-size: 14px;
  font-weight: 500;
  font-family: var(--font-family);
  line-height: 1.4;
  letter-spacing: -0.01em;
}
@media (prefers-color-scheme: dark) { .auto-theme .nav-item { color: rgba(255,255,255,0.7); } }
.dark .nav-item { color: rgba(255,255,255,0.7); }
.nav-item:hover { background: rgba(0,0,0,0.05); transform: scale(1.05); z-index: 10; }
.lh-sidebar .nav-item:focus,
.lh-sidebar .nav-item:active {
  outline: none;
  box-shadow: none;
  -webkit-tap-highlight-color: transparent;
}
.nav-item .badge { display: none; }
.nav-item.is-active { background: rgba(0,0,0,0.06); color: var(--text); }
.lh-sidebar .nav-item.is-active::before {
  display: none !important;
}

.nav-footer { margin-top: auto; display: flex; flex-direction: column; gap: 6px; padding-top: 8px; }

/* Compact density (1024�?279px) */
@media (min-width: 1024px) and (max-width: 1279px) {
  .lh-sidebar { width: 96px; }
  .nav-item { height: 36px; gap: 10px; }
  .nav-item .nav-ico,
  .nav-item .icon,
  .nav-item svg { 
    width: 20px; 
    height: 20px; 
    margin: 0 auto;
  }
  .lh-sidebar .brand-name { font-size: 14px; }
  .nav-item .label { 
    font-size: 13px; 
    font-family: var(--font-family);
    font-weight: 500;
    line-height: 1.4;
    letter-spacing: -0.01em;
  }
}

/* Collapsed (icon only) */
.lh-sidebar.is-collapsed { 
  width: 64px; 
  /* 性能优化：启用GPU加�?*/
  transform: translateZ(0);
}
.lh-sidebar.is-collapsed .nav-item { 
  padding-right: 0px; 
  /* 启用GPU加�?*/
  transform: translateZ(0);
  will-change: transform;
}
.lh-sidebar.is-collapsed .brand { 
  display: none; 
}
.lh-sidebar.is-collapsed .brand-name { 
  opacity: 0; 
  width: 0; 
  /* 启用GPU加�?*/
  transform: translateZ(0);
  will-change: opacity, width;
}
.lh-sidebar.is-collapsed .brand-row { 
  justify-content: center; 
  /* 启用GPU加�?*/
  transform: translateZ(0);
}
.lh-sidebar.is-collapsed .nav-item .label { 
  opacity: 0; 
  transform: translateX(8px) translateZ(0); 
  width: 0; 
  /* 启用GPU加�?*/
  will-change: opacity, transform, width;
}
.lh-sidebar.is-collapsed .nav-item .badge { 
  display: none; 
}
/* === Collapsed sidebar centering === */
.lh-sidebar.is-collapsed .nav-item {
  grid-template-columns: 1fr 0;  /* 图标列自适应，保证真正居�?*/
  justify-items: center;         /* 网格内元素（图标）水平居�?*/
  /* 如有需要，可保留现�?padding；无需改动其它过渡样式 */
  overflow: visible;         /* 允许伪元素溢出侧�?*/
}

/* 收缩状态下的图标居�?*/
.lh-sidebar.is-collapsed .nav-item .nav-ico,
.lh-sidebar.is-collapsed .nav-item .icon,
.lh-sidebar.is-collapsed .nav-item svg {
  margin: 0 auto;
}
.lh-sidebar.is-collapsed .nav-item:hover {
  transform: none;           /* 关闭 scale，避免边界裁�?*/
  z-index: 10;
}

/* Content rail keeps page centered regardless of sidebar */
.content-rail { flex: 1 1 auto; display: flex; justify-content: center; overflow: visible; }
.content-rail > .page { max-width: 1060px; width: 100%; }

.page { max-width: 1060px; margin: 0 auto; padding: 40px 20px; position: relative; min-height: 100vh; overflow: visible; }

.main-content {
  max-width: 800px;
  margin: 0 auto 40px;
  overflow: visible; /* 确保子元素可以溢�?*/
}

/* 深色模式下的主内容优�?*/
.dark .main-content {
  background: var(--bg);
  color: var(--text);
}

.dark .page {
  background: var(--bg);
  color: var(--text);
}

/* Navigation Arrow */
.nav-arrow {
  position: fixed;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 24px;
  color: var(--text-secondary);
  cursor: pointer;
  z-index: 100;
  transition: color 0.2s ease;
}

.nav-arrow:hover {
  color: var(--text);
}

/* Header */
.header {
  text-align: center;
  margin-bottom: 40px;
}

.logo-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.waveform-icon {
  font-size: 32px;
  color: var(--accent);
  margin-bottom: 8px;
}

.brand {
  font-size: 48px;
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1;
}

.brand-listen {
  color: var(--accent);
}

.brand-hub {
  color: var(--text);
}

.tagline {
  font-size: 18px;
  color: var(--text);
  font-weight: 500;
  margin: 0;
}

/* Mode Selection */
.mode-selection {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0;
  margin: 16px auto 32px;
  padding: 4px;
  background: #f3f3f3;
  border-radius: 999px;
  box-shadow: inset 0 1px 0 rgba(0,0,0,0.04);
  width: fit-content;
}

/* 滑块背景（默认在第一个按钮下方） */
.mode-selection::before {
  content: "";
  position: absolute;
  top: 4px;
  left: 4px;
  width: calc(50% - 4px);
  height: calc(100% - 8px);
  background: var(--primary);
  border-radius: 999px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
  transform: translateX(0);
  transition: transform 0.25s ease;
}

/* 当单人旁白激活时，滑块移动到右侧（依�?:has 支持�?*/
.mode-selection:has(#single-mode.active)::before {
  transform: translateX(100%);
}

.mode-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 20px;
  height: 36px;
  min-width: 120px;
  border: none;
  background: transparent;
  color: #3a3a3a;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: color 0.2s ease;
  z-index: 1;
}

.mode-btn:hover { color: #111; }

.mode-btn.active { color: var(--bg); }

.mode-icon {
  font-size: 18px;
}

/* Main Input Area */
.main-input-area {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-large);
  padding: 24px;
  box-shadow: var(--shadow);
  margin-bottom: 20px;
}

/* Input Container */
.input-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.main-textarea {
  width: 100%;
  min-height: 40px;
  border: none;
  outline: none;
  font-size: 16px;
  line-height: 1.6;
  resize: vertical;
  font-family: var(--font-family);
  color: var(--text);
  background: transparent;
  padding-bottom: 0;
}

.main-textarea::placeholder {
  color: var(--text-secondary);
}

/* Bottom Controls Container */
.bottom-controls-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 12px;
}

/* Left Controls */
.left-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* 分隔符样�?*/
.separator {
  display: none;
}

/* Right Controls */
.right-controls {
  display: flex;
  align-items: center;
  gap: 8px; /* 调整右侧按钮组的间距 */
  flex-shrink: 0;
}

/* Legacy classes for backward compatibility */
.bottom-left-controls {
  display: flex;
  gap: 12px;
}

.bottom-right-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  max-width: 400px;
  justify-content: flex-end;
}

/* Control Groups */
.control-group {
  position: relative;
}

.control-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: #414040;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  min-width: 0px;         /* 设定一个合适的最小宽�?*/
  justify-content: center;  /* 确保图标和文本在按钮内居�?*/
  overflow: hidden;         /* 隐藏超出部分 */
  text-overflow: ellipsis;  /* 超出部分显示省略�?*/
}

.control-btn.is-selected {
  border-color: var(--primary); /* 使用主色作为边框颜色 */
  background-color: #f8f8f8; /* 添加一个非常淡的背景色 */
  font-weight: 600;           /* 字体加粗以示强调 */
}

.control-btn:hover {
  border-color: var(--text);
  background: #f8f8f8;
}

.control-icon {
  width: 16px;       /* 设置SVG的宽度为16像素 */
  height: 16px;      /* 设置SVG的高度为16像素 */
  display: inline-block; /* 确保它像一个文字一样排�?*/
  vertical-align: middle; /* 垂直居中对齐 */
}

/* Popover Styles */
.popover {
  position: absolute;
  bottom: 100%;
  left: 0;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  min-width: 200px;
  z-index: 1000;
  margin-bottom: 8px;
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition: all 0.2s ease;
}

.popover.hidden {
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  pointer-events: none;
}

.popover-item {
  padding: 12px 16px;
  cursor: pointer;
  transition: background 0.2s ease;
  font-size: 14px;
  color: var(--text);
}

.popover-item:hover {
  background: #f8f8f8;
}

.popover-item:first-child {
  border-radius: var(--radius) var(--radius) 0 0;
}

.popover-item:last-child {
  border-radius: 0 0 var(--radius) var(--radius);
}

.popover-divider { 
  height:1px; 
  background: var(--border); 
  margin: 6px 0; 
}

.popover .control-row { 
  display:flex; 
  align-items:center; 
  justify-content:space-between; 
}

/* 风格面板图标样式 */
.style-item { 
  display: flex; 
  align-items: center; 
  gap: 8px; 
  justify-content: flex-start; /* 确保左对齐 */
}
.style-item .style-icon { 
  color: var(--text-secondary); 
  opacity: .6; 
  flex-shrink: 0; /* 防止图标被压缩 */
  display: flex;
  align-items: center;
  justify-content: center;
}
.style-item .style-label {
  flex: 1; /* 让文字占据剩余空间 */
  display: flex;
  align-items: center;
}
.style-item.is-active .style-icon, 
.style-item:hover .style-icon { 
  opacity: .85; 
}

/* 大号面板（音色选择）统一风格 */
.popover--panel {
  border: 1px solid var(--pop-border);
  border-radius: var(--pop-radius);
  background: var(--pop-bg);
  box-shadow: var(--pop-shadow);
  padding: 10px 12px 12px;
}

/* 顶部 S1/S2 切换区：背景更轻、更像头部条 */
.popover--panel .voice-header {
  background: rgba(0,0,0,.02);
  border-radius: calc(var(--pop-radius) - 4px);
  padding: 12px;
  margin: -2px -2px 12px;
  display: flex; align-items: center; gap: 8px; justify-content: center;
  border: 1px solid var(--pop-border);
}

/* S1/S2 pill 的选中/未选中视觉更统一 */
.popover--panel .voice-pill {
  padding: 8px 16px; border-radius: 999px; border: 1px solid var(--pop-border);
  background: #fff; color: var(--text);
}
.popover--panel .voice-pill.is-active {
  background: color-mix(in srgb, var(--primary) 12%, #fff);
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: 0 1px 0 rgba(0,0,0,.04) inset;
}

/* 卡片列表：统一圆角、边框、hover、选中态 */
.popover--panel .voice-grid {
  display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px;
}
.popover--panel .voice-card {
  border: 1px solid var(--pop-border);
  border-radius: 12px; background: #fff; padding: 12px;
  display:flex; align-items:center; justify-content:space-between; gap:8px;
  transition: transform .06s ease, border-color .06s ease, box-shadow .06s ease;
}
.popover--panel .voice-card:hover { border-color: color-mix(in srgb, var(--text) 18%, #0000); transform: translateY(-1px); }
.popover--panel .voice-card.is-selected {
  border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 18%, #0000);
}

/* 卡片里的功能按钮（编辑/删除/试听）统一"ghost"外观 */
.popover--panel .voice-card .icon-btn {
  width:28px;height:28px;border-radius:8px;border:1px solid var(--pop-border);
  display:inline-flex;align-items:center;justify-content:center; background:#fff;
}
.popover--panel .voice-card .icon-btn:hover { border-color: color-mix(in srgb, var(--text) 25%, #0000); }

/* 滚动与内边距统一 */
.popover--panel .scroll-area { max-height: 56vh; overflow:auto; padding-right: 2px; }
.popover--panel .scroll-area::-webkit-scrollbar { width: 6px; }
.popover--panel .scroll-area::-webkit-scrollbar-thumb { background: rgba(0,0,0,.12); border-radius: 999px; }

/* iOS 风格开关（脚本风格长度） */
.switch { 
  position: relative; 
  display: inline-block; 
  width: 44px; 
  height: 24px; 
}
.switch input { 
  opacity: 0; 
  width: 0; 
  height: 0; 
}
.slider {
  position: absolute; 
  cursor: pointer; 
  inset: 0; 
  background: #e6e6e6; 
  transition: .2s;
  border-radius: 999px; 
  box-shadow: inset 0 1px 2px rgba(0,0,0,.08);
}
.slider:before {
  content: ""; 
  position: absolute; 
  height: 18px; 
  width: 18px; 
  left: 3px; 
  top: 3px;
  background: #fff; 
  transition: .2s; 
  border-radius: 50%; 
  box-shadow: 0 1px 2px rgba(0,0,0,.2);
}
.switch input:checked + .slider { 
  background: var(--primary); 
}
.switch input:checked + .slider:before { 
  transform: translateX(20px); 
}

/* Voice Dropdown - 向上弹出定位 */
.voice-dropdown {
  position: absolute;
  bottom: 100%;
  left: 0;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  min-width: 320px;
  z-index: 1000;
  margin-bottom: 8px;
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  /* 只对透明度/阴影做过渡，避免尺寸/位置过渡引发闪烁 */
  transition: opacity .12s ease, box-shadow .12s ease;
}

/* 双音色选择状态显�?*/
.voice-selection-status {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: rgba(233, 30, 99, 0.02);
}

.selected-voice-display {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: center;
}

.voice-slot {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  min-width: 80px;
  transition: all 0.2s ease;
}

.voice-slot.selected {
  border-color: var(--accent);
  background: rgba(233, 30, 99, 0.05);
}

.voice-slot-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.voice-slot-name {
  font-size: 13px;
  color: var(--text);
  text-align: center;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.voice-slot-name.empty {
  color: var(--text-secondary);
  font-style: italic;
}

.voice-swap-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--bg);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.voice-swap-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(233, 30, 99, 0.05);
  transform: scale(1.05);
}

.voice-swap-btn svg {
  width: 16px;
  height: 16px;
}

/* 确保面板有足够的空间显示 */
.voice-dropdown {
  max-height: 70vh;
  overflow-y: auto;
}

/* 在小屏幕上，如果上方空间不足，则向下弹出 */
@media (max-height: 600px) {
  .voice-dropdown {
    bottom: auto;
    top: 100%;
    margin-bottom: 0;
    margin-top: 8px;
  }
  
  .voice-dropdown.hidden {
    transform: translateY(-10px);
  }
}

.voice-dropdown.hidden {
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  pointer-events: none;
}

/* ================= Redesigned Sound Panel V2 (UI overrides only) ================= */
/* 统一：所有用户的音色面板都至少这么宽 */
.voice-dropdown { min-width: 336px; max-width: min(58vw, 384px); }

/* 移动端兜底，避免超出屏幕 */
@media (max-width: 640px) {
  .voice-dropdown { min-width: unset; width: 96vw; }
}

/* 顶部槽位与交换按钮 */
.voice-dropdown .voice-selection-status { padding:10px 12px; background:#fff; border-bottom:1px solid var(--border); }
.voice-dropdown .selected-voice-display { display:flex; align-items:center; justify-content:space-between; gap:6px; }
.voice-dropdown .voice-slot { flex:1; display:flex; align-items:center; justify-content:center; padding:6px 8px; border:1px dashed var(--border); border-radius:6px; background:#fff; color:#8c8c8c; min-height:32px; transition:background-color .2s, border-color .2s; }
.voice-dropdown .voice-slot.selected { border-style:solid; border-color:#4A90E2; color:#2c5787; background:#e9f3fe; }
.voice-dropdown .voice-slot-label { display:none; }
.voice-dropdown .voice-slot-name { font-size:12px; color:inherit; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.voice-dropdown .voice-swap-btn { width:24px; height:24px; border:1px solid var(--border); border-radius:50%; background:#fff; color:#8c8c8c; transition:transform .2s, color .2s, border-color .2s; }
.voice-dropdown .voice-swap-btn:hover { color:#333; border-color:#bbb; transform: rotate(180deg); }

/* 音色库标题位置调整 */
.voice-dropdown .voice-group-header { padding:8px 12px 6px 12px; margin:0; border-bottom:none; }
.voice-dropdown .voice-group-title { font-size:13px; font-weight:600; color:var(--text); text-transform:none; letter-spacing:0; }

/* 列表网格与卡片 */
.voice-dropdown .voice-list { padding:0 12px 6px 12px; }
.voice-dropdown .voice-grid { grid-template-columns:1fr 1fr; gap:4px; padding:0; }
.voice-dropdown .voice-item { background:#f9f9f9; border:1px solid transparent; border-radius:6px; padding:8px 8px; gap:12px; min-height:36px; box-shadow:none; transition:background-color .2s; }
.voice-dropdown .voice-item:hover { background:#f0f0f0; transform:none; box-shadow:none; border-color:transparent; }
.voice-dropdown .voice-item.selected { border-color:#4A90E2; background:#e9f3fe; }
.voice-dropdown .voice-item-actions { gap:8px; opacity:0; transition:opacity .2s; margin-left:auto; }
.voice-dropdown .voice-item:hover .voice-item-actions { opacity:1; }
.voice-dropdown .voice-item-actions button svg { width:12px; height:12px; }
.voice-dropdown .voice-name { font-size:12px; }

/* 底部按钮 - 确保文字居中 */
.voice-dropdown .voice-actions { border-top:1px solid var(--border); padding:10px 12px; }
.voice-dropdown .voice-action-btn { width:100%; padding:8px; background:#333; border:none; border-radius:6px; color:#fff; font-size:13px; font-weight:500; display:flex; align-items:center; justify-content:center; text-align:center; }
.voice-dropdown .voice-action-btn:hover { background:#555; }
/* ================= End Redesigned Sound Panel V2 ================= */

.voice-list {
  padding: 12px 0;
}

/* 卡片式布局样式 */
.voice-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding: 8px 16px;
}

.voice-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  position: relative;
  overflow: hidden;
  min-height: 90px;
}

.voice-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  border-color: var(--accent);
}

.voice-item.selected {
  border-color: var(--accent);
  background: rgba(233, 30, 99, 0.05);
}

.voice-info {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
}

.voice-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  cursor: pointer;
}

.voice-icon:active {
  transform: scale(0.95);
}

/* 播放状态样�?*/
.voice-icon.playing {
  color: var(--accent);
  animation: pulse 1.5s ease-in-out infinite;
}

.voice-icon.playing svg {
  filter: drop-shadow(0 0 8px rgba(233, 30, 99, 0.6));
}

/* 加载状态样�?*/
.voice-icon.loading {
  color: var(--text-secondary);
}

.voice-icon.loading svg {
  opacity: 0.7;
}


@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

.voice-icon svg {
  width: 100%;
  height: 100%;
}

.voice-name {
  font-weight: 500;
  color: var(--text);
  font-size: 16px;
  line-height: 1.3;
}

.voice-item-actions {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}

.voice-item-actions button {
  border: none;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  border-radius: 4px;
  transition: all 0.2s ease;
  color: var(--text-secondary);
}

.voice-item-actions button:hover {
  background: rgba(0, 0, 0, 0.05);
  color: var(--accent);
}

.voice-item-actions button svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  transition: fill 0.2s ease;
}

/* 管理员音色卡片按钮SVG图标特殊样式 */
.voice-item.admin-voice .voice-item-actions button svg {
  width: 18px;
  height: 18px;
}

/* ===== Admin-only: 音色面板布局优化 ===== */
/* 注意：宽度规则已移至基础选择器，所有用户统一使用 */

/* 管理员网格默认单列（按钮不再被挤掉）；大屏再恢复两列 */
.voice-grid.admin-grid {
  grid-template-columns: 1fr;
}
@media (min-width: 1280px) {
  .voice-grid.admin-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* 管理员卡片：保证右侧按钮不被文字挤占、始终可�?*/
.voice-item.admin-voice {
  overflow: visible;              /* 避免被裁�?*/
  align-items: center;
  min-height: 36px;
  padding: 8px 8px;
  gap: 12px;                     /* 增加音色名称和编辑图标之间的间距 */
}

.voice-item.admin-voice .voice-info {
  flex: 1 1 auto;
  min-width: 0;                   /* 允许压缩，配合省略号 */
}

.voice-item.admin-voice .voice-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;            /* 名称过长时省�?*/
}

.voice-item.admin-voice .voice-item-actions {
  flex-wrap: nowrap;              /* 不换行，按钮始终一�?*/
  gap: 8px;
  margin-left: auto;              /* 右对�?*/
  z-index: 1;
  flex-shrink: 0;
}

.voice-item.admin-voice .voice-item-actions button {
  width: 32px;
  height: 32px;
}

/* 提升预览/编辑/删除图标对比度与可点性（只限管理员卡片） */
.voice-item.admin-voice .voice-item-actions button:hover {
  background: rgba(0,0,0,0.05);
  transform: translateY(-1px);
}

/* 预览按钮特殊样式 */
.voice-preview-btn {
  font-size: 16px;
  font-weight: bold;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  background: rgba(76, 175, 80, 0.1);
  color: #4CAF50;
  border: 1px solid rgba(76, 175, 80, 0.2);
}

.voice-preview-btn:hover {
  background: rgba(76, 175, 80, 0.2) !important;
  color: #4CAF50 !important;
  border-color: rgba(76, 175, 80, 0.4);
  transform: translateY(-1px);
}

/* 编辑按钮特殊样式 */
.voice-edit-btn {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  background: rgba(33, 150, 243, 0.1);
  color: #2196F3;
  border: 1px solid rgba(33, 150, 243, 0.2);
}

.voice-edit-btn:hover {
  background: rgba(33, 150, 243, 0.2) !important;
  color: #2196F3 !important;
  border-color: rgba(33, 150, 243, 0.4);
  transform: translateY(-1px);
}

/* 删除按钮特殊样式 */
.voice-delete-btn {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  background: rgba(244, 67, 54, 0.1);
  color: #F44336;
  border: 1px solid rgba(244, 67, 54, 0.2);
}

.voice-delete-btn:hover {
  background: rgba(244, 67, 54, 0.2) !important;
  color: #F44336 !important;
  border-color: rgba(244, 67, 54, 0.4);
  transform: translateY(-1px);
}

/* 批量生成预览按钮样式 */
.batch-preview-btn {
  background: #4CAF50;
  color: white;
  border: none;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.batch-preview-btn:hover:not(:disabled) {
  background: #45a049;
  transform: translateY(-1px);
}

.batch-preview-btn:disabled {
  background: #ccc;
  cursor: not-allowed;
  transform: none;
}

/* 添加新音色卡片样�?*/
.add-voice-card {
  background: var(--bg);
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 16px 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 60px;
  color: var(--text-secondary);
}

.add-voice-card:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(233, 30, 99, 0.1);
}

.add-voice-card.locked {
  border-color: #ccc;
  color: #999;
  cursor: not-allowed;
}

.add-voice-card.locked:hover {
  border-color: #ccc;
  color: #999;
  transform: none;
  box-shadow: none;
}

.add-voice-icon {
  font-size: 20px;
  font-weight: bold;
}

.add-voice-icon svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.add-voice-text {
  font-size: 14px;
  font-weight: 500;
}

/* 主页面添加音色按钮样�?*/
.voice-action-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.voice-action-btn svg {
  flex-shrink: 0;
}

/* 音色分组样式 */
.voice-group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  margin: 8px 0 4px 0;
  border-bottom: 1px solid var(--border);
}

.voice-group-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.voice-group-badge {
  background: var(--accent);
  color: white;
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 10px;
  font-weight: 500;
}

.voice-global-badge {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 10px;
  font-weight: 500;
  margin-left: 8px;
}

/* 升级模态框样式 */
.upgrade-content {
  text-align: center;
  padding: 20px;
}

.upgrade-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.upgrade-message {
  font-size: 18px;
  color: var(--text);
  margin-bottom: 24px;
  font-weight: 500;
}

.upgrade-features {
  margin: 24px 0;
  text-align: left;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
}

.feature-icon {
  color: #4CAF50;
  font-size: 16px;
  flex-shrink: 0;
}

.feature-text {
  color: var(--text-secondary);
  font-size: 14px;
}

.upgrade-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 24px;
}

.btn-primary {
  background: var(--accent);
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary:hover {
  background: var(--accent-hover, #c2185b);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background: var(--bg-secondary, #f5f5f5);
  color: var(--text);
}

.voice-actions {
  border-top: 1px dashed var(--border);
  padding: 12px 16px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.voice-action-btn {
  width: auto;
  padding: 8px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.voice-action-btn:hover {
  border-color: var(--text);
  background: #f8f8f8;
}

.icon-btn {
  width: 36px;
  height: 36px;
  border: none;
  border-radius: var(--radius);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  flex-shrink: 0;
  font-size: 18px;
}

.icon-btn:hover {
  background: rgba(0, 0, 0, 0.05);
  transform: scale(1.05);
}

.icon {
  font-size: 18px;
}

.create-btn {
  padding: 8px 14px;
  background: var(--primary);
  color: var(--bg);
  border: none;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  min-width: 60px;
  white-space: nowrap;
}

.create-btn:hover {
  background: #333;
  transform: translateY(-1px);
}

.create-btn:disabled {
  background: #ccc;
  color: #999;
  cursor: not-allowed;
  transform: none;
}

.create-btn:disabled:hover {
  background: #ccc;
  transform: none;
}

/* Modal Styles */
.modal {
  position: fixed;
  inset: 0;
  display: none;            /* 默认隐藏 */
  align-items: center;      /* 垂直居中 */
  justify-content: center;  /* 水平居中 */
  background: rgba(0,0,0,0.45);
  z-index: 10000;          /* 提高模态框层级，确保在最上层 */
  backdrop-filter: blur(4px);
}
.modal[aria-hidden="false"] { display: flex; }

.modal.hidden {
  display: none;
}

.modal-content {
  position: relative;
  width: min(520px, 92vw);
  border-radius: 12px;
  background: var(--bg);
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
  z-index: 10001; /* 确保模态框内容在遮罩之�?*/
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 24px 16px;
  border-bottom: 1px solid var(--border);
}

.modal-header h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
}

.close-btn {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all 0.2s ease;
}

.close-btn:hover {
  background: #f0f0f0;
  color: var(--text);
}

.modal-body {
  padding: 24px;
}

/* 添加新音色模态框特定样式 */
.add-voice-modal {
    max-width: 480px; /* 设置一个固定的宽度 */
    width: 95%;
}

.modal-header h3 {
    font-size: 18px; /* 减小标题字号 */
    font-weight: 600;
}


.voice-form .form-group {
    margin-bottom: 24px;
}

.voice-form .form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 14px;
    color: #333; /* 加深标签颜色 */
}

.voice-form input[type="text"],
.voice-form textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd; /* 使用细边�?*/
    border-radius: 8px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.voice-form input[type="text"]:focus,
.voice-form textarea:focus {
    border-color: var(--primary); /* 聚焦时使用主�?*/
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

/* 深色模式下的表单输入优化 */
.dark .voice-form input[type="text"],
.dark .voice-form textarea {
    background-color: var(--bg-secondary);
    border-color: var(--border);
    color: var(--text);
}

.dark .voice-form input[type="text"]:focus,
.dark .voice-form textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(233, 30, 99, 0.2);
}

.dark .main-textarea {
    color: var(--text);
    background: var(--bg);
}

.dark .main-textarea::placeholder {
    color: var(--text-muted);
}

.voice-form textarea {
    min-height: 100px;
    resize: vertical;
}

.audio-upload-area {
    border: 2px dashed #ddd;
    border-radius: 8px;
    padding: 12px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s ease, background-color 0.2s ease;
}

.audio-upload-area:hover {
    border-color: var(--primary);
    background-color: #f9f9f9;
}

.upload-icon {
    width: 24px;
    height: 24px;
    color: #888;
    margin-bottom: 4px;
}

.audio-upload-hint p {
    margin: 0;
    font-size: 14px;
    color: #555;
}

.audio-upload-hint .audio-subtitle {
    font-size: 12px;
    color: #999;
    margin-top: 4px;
}

/* 双按钮布局 */
.form-actions-dual {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 24px;
}

.btn-primary, .btn-secondary {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
}

.btn-primary:hover {
    background-color: #333;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.btn-secondary {
    background-color: #f0f0f0;
    color: #333;
    border: 1px solid #ddd;
}

.btn-secondary:hover {
    background-color: #e5e5e5;
    border-color: #ccc;
}

/* 深色模式下的按钮优化 */
.dark .btn-primary {
    background-color: var(--accent);
    color: white;
}

.dark .btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-light);
}

.dark .btn-secondary {
    background-color: var(--bg-secondary);
    color: var(--text);
    border: 1px solid var(--border);
}

.dark .btn-secondary:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--border-light);
}


.mode-hint {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: #f8f9fa;
  border: 1px solid #e9ecef;
  border-radius: 8px;
  margin-bottom: 20px;
}

.hint-icon {
  font-size: 14px;
  flex-shrink: 0;
}

.hint-text {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 400;
}

.file-name-display {
  margin-top: 8px;
  padding: 8px 12px;
  background: #e8f5e8;
  border: 1px solid #c3e6c3;
  border-radius: var(--radius);
  font-size: 14px;
  color: #2d5a2d;
  display: none;
}

.file-name-display.show {
  display: block;
}

/* Settings Modal Specific */
.settings-section {
  margin-bottom: 32px;
}

.settings-section h4 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--text);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  font-family: var(--font-family);
  outline: none;
  transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent);
}

.form-group select {
  background: var(--bg);
  cursor: pointer;
}

.form-group textarea {
  min-height: 80px;
  resize: vertical;
}

.form-group small {
  display: block;
  margin-top: 6px;
  color: var(--text-secondary);
  font-size: 12px;
}

.audio-upload-area {
  position: relative;
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 24px 16px;
  text-align: center;
  transition: border-color 0.2s ease;
}

.audio-upload-area:hover {
  border-color: var(--accent);
}

.audio-upload-area input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.audio-upload-hint {
  pointer-events: none;
}

.audio-icon {
  font-size: 24px;
  margin-bottom: 8px;
  display: block;
}

.audio-upload-hint p {
  margin: 4px 0;
  color: var(--text);
  font-weight: 500;
}

.audio-subtitle {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: normal;
}

.save-voice-btn {
  width: 100%;
  padding: 12px 24px;
  background: var(--accent);
  color: var(--bg);
  border: none;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-top: 16px;
}

.save-voice-btn:hover {
  background: #d81b60;
  transform: translateY(-1px);
}

.form-actions {
  text-align: right;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.save-settings-btn {
  padding: 12px 24px;
  background: var(--primary);
  color: var(--bg);
  border: none;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.save-settings-btn:hover {
  background: #333;
  transform: translateY(-1px);
}

/* Settings Button */
.settings-btn {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: none;
  background: var(--primary);
  color: var(--bg);
  font-size: 20px;
  cursor: pointer;
  box-shadow: var(--shadow);
  z-index: 1000;
  transition: all 0.2s ease;
}

.settings-btn:hover {
  background: #333;
  transform: scale(1.05);
}

/* Utility Classes */
.hidden {
  display: none !important;
}

/* ===== 页面路由切换的唯一真实来源 (Single Source of Truth) ===== */

/* 默认情况下，所�?page容器都是隐藏�?*/
.page {
  display: none;
}

/* 只有不包�?hidden类的.page容器才会被显�?*/
.page:not(.hidden) {
  display: block;
}



/* Tooltip on collapsed items */
.lh-sidebar .nav-item[data-tooltip]::after,
.lh-sidebar .toggle-btn[data-tooltip]::after,
.lh-sidebar .brand[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute; 
  left: calc(100% + 8px); 
  top: 50%; 
  transform: translateY(-50%) translateX(6px);
  background: rgba(0,0,0,0.8); 
  color: #fff; 
  padding: 6px 10px; 
  border-radius: 6px; 
  font-size: 12px; 
  white-space: nowrap;
  opacity: 0; 
  visibility: hidden; 
  transition: opacity .16s ease, transform .16s ease; 
  pointer-events: none; 
  z-index: 10010;
  display: inline-block;
  max-width: none;
  line-height: 1.2;
  width: max-content;
  /* 确保tooltip完整显示 */
  overflow: visible;
  word-wrap: normal;
}
.lh-sidebar.is-collapsed .nav-item:hover::after { 
  opacity: 1; 
  visibility: visible; 
  transform: translateY(-50%); 
  transition-delay: .14s; 
  left: calc(100% + 12px);
  z-index: 10010;
  /* 确保收缩状态下的tooltip完整显示 */
  overflow: visible;
  word-wrap: normal;
}

/* Breath dot on composer */
#nav-composer .breath-dot { display: none; width: 6px; height: 6px; margin-left: auto; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(233,30,99,0.6); animation: pulse 2s infinite; }
@keyframes pulse { 0%{ box-shadow:0 0 0 0 rgba(233,30,99,0.6)} 70%{ box-shadow:0 0 0 6px rgba(233,30,99,0)} 100%{ box-shadow:0 0 0 0 rgba(233,30,99,0)} }

/* Dark theme adjustments */
@media (prefers-color-scheme: dark) {
  .auto-theme .nav-item:hover { background: rgba(255,255,255,0.08); z-index: 10; }
  .auto-theme .nav-item:active { background: rgba(255,255,255,0.12); }
  .auto-theme .nav-item .badge { background: rgba(255,255,255,0.14); color: #f4f4f5; }
}

.dark .nav-item:hover { background: rgba(255,255,255,0.08); z-index: 10; }
.dark .nav-item:active { background: rgba(255,255,255,0.12); }
.dark .nav-item .badge { background: rgba(255,255,255,0.14); color: #f4f4f5; }

/* Responsive hide on <=768px (drawer placeholder) */
@media (max-width: 768px) {
  .lh-sidebar { display: none; }
}

/* Responsive Design */
@media (max-width: 768px) {
  .page {
    padding: 20px 16px;
  }
  
  .brand {
    font-size: 36px;
  }
  
  .tagline {
    font-size: 16px;
  }
  
  .main-input-area {
    padding: 20px;
  }
  
  .bottom-controls-container {
    position: static;
    margin-top: 20px;
    flex-direction: column;
    gap: 16px;
  }
  
  .left-controls,
  .right-controls {
    justify-content: center;
  }
  
  .left-controls {
    margin-bottom: 8px;
  }
  
  .control-btn {
    font-size: 12px;
    padding: 6px 12px;
  }
  
  .popover,
  .voice-dropdown {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    margin: 0;
    max-width: 90vw;
  }
  
  .modal-content {
    width: 95%;
    margin: 20px;
  }
  
  .nav-arrow {
    display: none;
  }
}

@media (max-width: 480px) {
  .mode-selection {
    flex-direction: column;
    align-items: center;
  }
  
  .mode-btn {
    width: 200px;
  }
  
  .left-controls {
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }
  
  .right-controls {
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }
  
  .create-btn { width: 100%; margin-bottom: 8px; }
}

/* ==================== 资料库样�?==================== */

#history-library {
  margin-top: 60px;
  padding: 0;
}

/* 资料库样�?*/
.library-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
}

.history-filters { display: flex; align-items: center; gap: 8px; }
.chip { border: 1px solid var(--border); background: var(--bg); border-radius: 999px; padding: 6px 10px; font-size: 13px; cursor: pointer; color: var(--text); }
.chip.active, .chip[aria-pressed="true"] { background: var(--primary); color: var(--bg); border-color: var(--primary); }
.chip-select { border: 1px solid var(--border); border-radius: 999px; padding: 6px 10px; background: var(--bg); font-size: 13px; color: var(--text); }

/* 深色模式下的筛选按钮优�?*/
.dark .chip {
  background: var(--bg-secondary);
  border-color: var(--border);
  color: var(--text-secondary);
}

.dark .chip:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-light);
  color: var(--text);
}

.dark .chip.active,
.dark .chip[aria-pressed="true"] {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.dark .chip-select {
  background: var(--bg-secondary);
  border-color: var(--border);
  color: var(--text);
}

.dark .chip-select:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-light);
}

.library-title-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.history-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
}

.history-header h2 {
  font-size: 28px;
  font-weight: 600;
  color: #1a1a1a;
  margin: 0;
}

.history-controls {
  display: flex;
  align-items: center;
  gap: 20px;
}

.play-all-btn {
  background: #000;
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.play-all-btn:hover {
  background: #333;
  transform: scale(1.05);
}

.browse-all-link {
  color: #666;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
  display: flex;
  align-items: center;
}

.browse-all-link:hover {
  color: #000;
}

.browse-all-link .icon {
  width: 14px;
  height: 14px;
  transition: transform 0.3s ease;
}

.browse-all-link .icon-arrow-down {
  display: none;
}

.browse-all-link.expanded .icon-arrow-right {
  display: none;
}

.browse-all-link.expanded .icon-arrow-down {
  display: block;
}

.library-header h2 {
  cursor: pointer;
  transition: transform 0.2s ease;
}

.library-header h2:hover {
  transform: scale(1.05);
}



/* 资料库卡�?*/
.history-card {
  background-color: #ffffff;
  border-radius: 12px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.10); /* 性能优化：降低阴影开销 */
  padding: 12px;
  display: flex;
  flex-direction: column;
  transition: all 0.2s ease-in-out;
  position: relative;
  /* 修复：关闭绘制包含，避免菜单被裁�?*/
  content-visibility: visible; /* 明确关闭绘制包含，允许菜单溢�?*/
  /* contain-intrinsic-size: 280px 260px;  �?没了 content-visibility，这行不会生效，可删可留 */
  overflow: visible; /* 确保下拉菜单可以溢出卡片边界 */
}

/* === Library cards (clean) === */
.history-grid{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 18px;
  margin-bottom: 40px;
  overflow: visible;
}

/* 封面只保留一份定义，16:9 + 降级兜底 */
.history-thumbnail{
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  background-size: cover;
  background-position: center;
  background-color: var(--bg-tertiary);
  flex-shrink: 0;
  transition: transform .3s ease;
}
.history-card:hover .history-thumbnail{ transform: scale(1.02); }

/* 不支�?aspect-ratio 的浏览器降级 */
@supports not (aspect-ratio: 1){
  .history-thumbnail{ height: 0; padding-bottom: 56.25%; }
}

/* 底部信息放松间距即可，功能不�?*/
.history-footer{
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  padding-top: 8px;
}
.history-metadata{
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: #999;
  margin-bottom: 0;
}

/* 深色模式下的历史卡片优化 */
.dark .history-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-light);
  color: var(--text);
}

.dark .history-card:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--border-light);
  box-shadow: var(--shadow);
}

.history-card.menu-active {
  z-index: 15; /* 确保激活菜单的卡片在最上层 */
  position: relative; /* 确保z-index生效 */
}

.history-card:hover {/* 鼠标悬浮效果 */
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}



.history-content {
  margin-bottom: 16px;
}

.history-title {
  font-size: 15px;
  font-weight: 600;
  color: #1a1a1a;
  line-height: 1.4;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2; /* 关键：限制为2�?*/
  line-clamp: 2;
  -webkit-box-orient: vertical;
  text-wrap: pretty; /* 尝试让浏览器优化换行 */
}

.history-title-link {
  font-size: 15px;
  font-weight: 600;
  color: #1a1a1a;
  line-height: 1.4;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2; /* 关键：限制为2�?*/
  line-clamp: 2;
  -webkit-box-orient: vertical;
  text-wrap: pretty; /* 尝试让浏览器优化换行 */
  text-decoration: none;
  cursor: pointer;
  transition: color 0.2s ease;
}

.history-title-link:hover {
  color: #007bff;
}

/* 深色模式下的卡片内容优化 */
.dark .history-title {
  color: var(--text);
}

.dark .history-title-link {
  color: var(--text);
}

.dark .history-title-link:hover {
  color: #4da6ff;
}

.history-author {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  font-size: 14px;
  color: #666;
}

.author-icon {
  width: 16px;
  height: 16px;
  background: #e3f2fd;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
}

.history-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  padding-top: 16px;
}

.history-metadata {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  color: #999;
  margin-bottom: 0;
}

/* 深色模式下的元数据优�?*/
.dark .history-metadata {
  color: var(--text-secondary);
}

/* 卡片内容区域样式 */
.history-content {
  flex: 1;
}

/* �?emoji 与文字统一基线并垂直居�?*/
.metadata-item { 
  display: inline-flex; 
  align-items: center; 
  gap: 6px; 
  line-height: 1; 
  vertical-align: middle; 
}
.metadata-item > span { 
  display: inline-flex; 
  align-items: center; 
  line-height: 1; 
  vertical-align: middle; 
}
/* 不再强行固定 emoji 宽高，避免挤压导�?看着不居�?的错�?*/
.metadata-icon { 
  width: auto; 
  height: auto; 
  font-size: 14px; 
  line-height: 1; 
  opacity: 0.85; 
}

.history-controls {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  overflow: visible; /* 确保菜单可以溢出控制区域 */
}

/* 卡片操作按钮通用样式 */
.card-action-btn {
  background: transparent;
  border: none;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.history-play-btn:hover {
  transform: scale(1.05);
}

/* 菜单按钮样式 */
.history-menu {
  position: relative;
  z-index: 1000; /* 降低z-index，确保不会覆盖全局播放器 */
}

/* 当模态框打开时，降低音频卡片菜单的层�?*/
body.is-modal-open .history-menu {
  z-index: 100; /* 模态框打开时降低菜单层�?*/
}

.history-menu-btn:hover {
  transform: scale(1.05);
}

/* 菜单下拉框样�?*/
.history-menu-dropdown {
  position: absolute;
  left: 100%; /* 从父元素的右侧开始定�?*/
  top: 50%; /* 垂直居中于父元素 */
  transform: translateY(-50%) translateX(8px); /* 向上移动自身高度的一半，并向右偏�?px */
  
  /* 毛玻璃效果和精美边框、阴�?*/
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
  
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  
  /* 默认隐藏，通过JS添加 .active 类来显示 */
  opacity: 0;
  visibility: hidden;
  transform: translateY(-50%) translateX(0px); /* 初始位置轻微向左偏移 */
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 1000; /* 确保菜单在所有元素之�?*/
  min-width: 120px;
}

.history-menu-dropdown.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(-50%) translateX(8px); /* 最终位�?*/
}

/* 贴边避让：横向反向（右侧贴边时向左展开�?*/
.history-menu-dropdown.flip-x {
  left: auto;
  right: 100%;
}
.history-menu-dropdown.flip-x.active {
  transform: translateY(-50%) translateX(-8px);
}

/* 贴边避让：纵向反向（底部贴边时向�?下微调） */
.history-menu-dropdown.flip-y {
  top: auto;
  bottom: 50%;
}
.history-menu-dropdown.flip-y.active {
  transform: translateY(50%) translateX(8px);
}

/* --- 卡片菜单按钮通用样式 --- */
.history-menu-dropdown button {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 10px 12px;
  background: none;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  color: #333;
  font-size: 14px;
  font-weight: 500;
  text-align: left;
  white-space: nowrap;
  transition: background-color 0.2s ease;
}

.history-menu-dropdown button:hover {
  background-color: rgba(0, 0, 0, 0.07);
}

.history-menu-dropdown .icon-media {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  fill: currentColor;
}

/* --- 删除按钮的特定颜�?--- */
.history-menu-dropdown .history-delete-btn {
  color: #e74c3c;
}

.history-menu-dropdown .history-delete-btn:hover {
  background-color: rgba(231, 76, 60, 0.1);
  color: #c0392b;
}

/* --- 资料库卡�?- 新版垂直布局 --- */

/* 卡片整体：确保内部元素垂直排�?*/
.history-card {
  /* display: flex; �?flex-direction: column; 应该已存�?*/
  padding: 12px; /* 调整内边距，让边框更�?*/
  gap: 12px; /* 设置三行之间的间�?*/
}



/* 第二行：标题 */
.history-content {
  margin: 0; /* 移除旧的外边�?*/
}

.history-title {
  font-weight: 600;
  font-size: 16px;
  color: #333;
  line-height: 1.5;
  
  /* 多行截断逻辑保持不变 */
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2; 
  line-clamp: 2;
  -webkit-box-orient: vertical;
  text-wrap: pretty; /* 尝试让浏览器优化换行 */
}

/* 第三行：底部控件 */
.history-footer {
  padding-top: 0; /* 移除旧的上内边距 */
  margin-top: auto; /* 关键：将底部控件推到卡片最下方 */
}

/* 响应式设�?*/
@media (max-width: 768px) {
  .main-input-area {
    padding: 16px;
  }
  
  .input-container {
    gap: 12px;
  }
  
  .bottom-controls-container {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }
  
  .left-controls {
    justify-content: center;
    flex-wrap: wrap;
  }
  
  .right-controls {
    justify-content: center;
  }
  
  .history-grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
  }
  
  .history-header {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
  
  .history-controls {
    gap: 16px;
  }
}

@media (max-width: 480px) {
  .main-input-area {
    padding: 12px;
  }
  
  .input-container {
    gap: 8px;
  }
  
  .bottom-controls-container {
    padding-top: 12px;
  }
  
  .left-controls {
    gap: 8px;
  }
  
  .control-btn {
    padding: 4px 8px;
    font-size: 12px;
  }
  
  .history-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .history-card {
    padding: 12px;
  }
}

/* 历史记录网格折叠效果 */
.history-grid.collapsed .history-card:nth-child(n + 9) {
  display: none;
}

/* ==================== 桌面端作品集放大和四列固�?==================== */
/* 桌面断点可按你页面的实际轨道微调，这里用 1100px */
@media (min-width: 1100px) {
  /* 让作品集�?800px 容器�?外扩"到页面轨�?1060px */
  #history-library {
    width: 1060px;
    max-width: 1060px;
    /* 800 �?1060 的差值是 260，所以左右各-130px */
    margin-left: calc((800px - 1060px) / 2);   /* -130px */
    margin-right: calc((800px - 1060px) / 2);  /* -130px */
  }

  /* 只在作品集里固定四列；卡片仍�?min 220px，不拉伸 */
  #history-library .history-grid {
    grid-template-columns: repeat(4, minmax(220px, 1fr));
  }
}

/* 小屏保持原样（容�?<=800px，自适应 1-3 列），无需额外样式 */

/* ==================== 全局悬浮播放器样�?==================== */
#global-player {
  position: fixed !important;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 72%;
  max-width: 880px; /* 缩短整体长度 */
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 12px;
  z-index: 3000; /* 确保全局播放器在音频卡片菜单之上 */
  padding: 12px 20px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.18);
  display: flex;
}

/* 深色模式下的全局播放器优�?*/
.dark #global-player {
  background: rgba(36, 36, 40, 0.95);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  color: var(--text);
}

/* 深色模式下的其他重要元素优化 */

.dark .player-btn {
  color: var(--text-secondary);
  background: transparent;
  border: none;
}

.dark .player-btn:hover {
  color: var(--text);
  background: var(--bg-secondary);
  border-radius: 6px;
}

.dark .player-btn svg {
  color: var(--text-secondary);
  stroke: var(--text-secondary);
  fill: var(--text-secondary);
}

.dark .player-btn:hover svg {
  color: var(--text);
  stroke: var(--text);
  fill: var(--text);
}

.dark .player-btn.speed-btn {
  background-color: var(--bg-secondary);
  color: var(--text);
  border: 1px solid var(--border);
}

.dark .player-btn.speed-btn:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--border-light);
}

.dark .player-progress-time {
  color: var(--text-secondary);
}

.dark .mode-hint {
  background: var(--bg-secondary);
  border-color: var(--border);
  color: var(--text);
}

.dark .input-container {
  background: var(--bg);
  border-color: var(--border);
}

.dark .bottom-controls {
  color: var(--text-secondary);
}

.dark .library-header h2 {
  color: var(--text);
}

.dark .browse-all-link {
  color: var(--text-secondary);
}

.dark .browse-all-link:hover {
  color: var(--text);
}

/* 深色模式下的通用图标优化 */
.dark svg,
.dark .icon {
  color: var(--text-secondary);
  stroke: var(--text-secondary);
  fill: var(--text-secondary);
}

.dark button:hover svg,
.dark .btn:hover svg,
.dark .nav-item:hover svg,
.dark .player-btn:hover svg {
  color: var(--text);
  stroke: var(--text);
  fill: var(--text);
}

/* 特定区域的图标优�?*/
.dark .history-card svg,
.dark .history-card .icon {
  color: var(--text-secondary);
  stroke: var(--text-secondary);
  fill: var(--text-secondary);
}

.dark .history-card:hover svg,
.dark .history-card:hover .icon {
  color: var(--text);
  stroke: var(--text);
  fill: var(--text);
}

.dark .browse-all-link svg,
.dark .browse-all-link .icon {
  color: var(--text-secondary);
  stroke: var(--text-secondary);
  fill: var(--text-secondary);
}

.dark .browse-all-link:hover svg,
.dark .browse-all-link:hover .icon {
  color: var(--text);
  stroke: var(--text);
  fill: var(--text);
}

/* 深色模式下的卡片控制按钮优化 */
.dark .history-play-btn,
.dark .history-menu-btn {
  color: var(--text-secondary);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
}

.dark .history-play-btn:hover,
.dark .history-menu-btn:hover {
  color: var(--text);
  background: var(--bg-tertiary);
  border-color: var(--border-light);
}

.dark .history-play-btn svg,
.dark .history-menu-btn svg {
  color: var(--text-secondary);
  stroke: var(--text-secondary);
  fill: var(--text-secondary);
}

.dark .history-play-btn:hover svg,
.dark .history-menu-btn:hover svg {
  color: var(--text);
  stroke: var(--text);
  fill: var(--text);
}

/* 深色模式下的用户头像区域图标 */
.dark .user-avatar {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

/* 深色模式下的更多操作菜单图标 */
.dark .more-options-menu svg,
.dark .dropdown-item svg {
  color: var(--text-secondary);
  stroke: var(--text-secondary);
  fill: var(--text-secondary);
}

.dark .dropdown-item:hover svg {
  color: var(--text);
  stroke: var(--text);
  fill: var(--text);
}

/* 深色模式下的历史卡片下拉菜单 */
.dark .history-menu-dropdown {
  background: rgba(42, 42, 46, 0.95);
  border-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px) saturate(180%);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.dark .history-menu-dropdown button {
  color: var(--text);
}

.dark .history-menu-dropdown button:hover {
  background-color: rgba(255, 255, 255, 0.08);
}

.dark .history-menu-dropdown .history-delete-btn {
  color: #e74c3c;
}

.dark .history-menu-dropdown .history-delete-btn:hover {
  background-color: rgba(231, 76, 60, 0.15);
  color: #f39c12;
}

/* 深色模式下的其他关键图标区域优化 */
.dark .input-container svg,
.dark .input-container .icon {
  color: var(--text-secondary);
  stroke: var(--text-secondary);
  fill: var(--text-secondary);
}

.dark .bottom-controls svg,
.dark .bottom-controls .icon {
  color: var(--text-secondary);
  stroke: var(--text-secondary);
  fill: var(--text-secondary);
}

.dark .mode-hint svg,
.dark .mode-hint .icon {
  color: var(--text-secondary);
  stroke: var(--text-secondary);
  fill: var(--text-secondary);
}

/* 深色模式下的播放列表面板图标 */
.dark .playlist-panel svg,
.dark .playlist-panel .icon {
  color: var(--text-secondary);
  stroke: var(--text-secondary);
  fill: var(--text-secondary);
}

/* 深色模式下的工具提示和浮层图�?*/
.dark .tooltip svg,
.dark .popover svg {
  color: var(--text-secondary);
  stroke: var(--text-secondary);
  fill: var(--text-secondary);
}

/* 确保活跃状态的图标使用品牌�?*/
.dark .nav-item.is-active svg,
.dark .chip.active svg,
.dark .btn-primary svg {
  color: currentColor;
  stroke: currentColor;
  fill: currentColor;
}

#global-player {
  align-items: center;
  gap: 16px;
  transition: transform 0.4s ease-out, opacity 0.4s ease-out;
  opacity: 1;
}

#gp-thumbnail {
    width: 56px;
    height: 56px;
    border-radius: 8px;
    object-fit: cover;
    flex-shrink: 0;
}

#gp-info-container {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    min-width: 0;
}

#gp-title {
    font-weight: 600;
    font-size: 15px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

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

#global-player.hidden {
  transform: translate(-50%, 150%); /* 从下方滑出视�?*/
  opacity: 0;
  pointer-events: none;
}

.player-left-controls, .player-main-controls, .player-right-controls {
  display: flex;
  align-items: center;
}

.player-left-controls {
  gap: 12px;
}

.player-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 20px;
  color: #333;
  padding: 4px;
  transition: transform 0.2s ease; /* �?transform 添加过渡效果 */
}

.player-btn:hover {
  transform: scale(1.1); /* 鼠标悬浮时放�?10% */
}

.player-btn.speed-btn {
  font-size: 14px;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 6px;
  background-color: #f0f0f0;
}

.player-track-info {
  flex-grow: 1;
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0; /* 修复flex布局中长文本溢出的问�?*/
}

.player-thumbnail {
  width: 40px;
  height: 40px;
  border-radius: 6px;
  background-color: #e0e0e0;
  flex-shrink: 0;
}

.player-title-container {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.player-title {
  font-weight: 600;
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin: 0; /* 清除默认边距 */
}

.player-progress-container {
  display: flex;
  align-items: center;
  gap: 12px; /* 调整间距 */
  width: 100%; /* 确保它撑满可用空�?*/
}

.player-time {
  font-size: 12px;
  color: #666;
  white-space: nowrap; /* 防止换行 */
}

.player-progress-bar {
  flex-grow: 1; /* 占据所有剩余空�?*/
  height: 5px;
  background-color: #e0e0e0;
  border-radius: 2.5px;
  cursor: pointer;
}

.progress-bar-inner {
  height: 100%;
  width: 0%; /* 初始�? */
  background-color: #333;
  border-radius: 2.5px;
  /* 2) 频繁动画的预告知，减少重排重绘成�?*/
  will-change: width;
}

/* --- 全局播放器主控制�?--- */
.player-main-controls {
  display: flex;
  align-items: center; /* 确保垂直居中 */
  gap: 18px; /* 主控制区的按钮间�?*/
  flex-shrink: 0;
}

/* --- 全局播放器按�?--- */
.play-pause-btn {
  width: 32px;
  height: 32px;
  background-color: #000;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px !important;
}

/* --- 全局播放器右侧控制区 --- */
.player-right-controls {
  display: flex;
  align-items: center; /* 确保垂直居中 */
  gap: 8px;
  flex-shrink: 0;
}

/* --- 全局播放器信息区（标�?进度条） --- */
.player-info {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-width: 0;
  height: 100%; /* 确保它能撑满父容器的高度 */
}

/* --- 全局播放器标�?--- */
.player-title {
  font-size: 15px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin: 0; /* 清除默认边距 */
}

/* --- 全局播放器进�?--- */
.player-progress {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
}

.current-time,
.total-time {
  font-size: 13px;
  color: #666;
  white-space: nowrap; /* 防止换行 */
}

/* ==================== 全局播放器播放列表弹层样�?==================== */
#global-player .playlist-panel {
  position: absolute;
  left: 12px;
  bottom: 56px;
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  max-height: 40vh;
  overflow: auto;
  min-width: 300px;
  padding: 8px;
  z-index: 1000;
}
#global-player .playlist-panel.hidden { display: none; }
#global-player .playlist-list { list-style: none; margin: 0; padding: 0; }
#global-player .playlist-list li {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px; border-radius: 8px; cursor: pointer;
  font-size: 14px;
}
#global-player .playlist-list li:hover { background: #f7f7f7; }
#global-player .playlist-list li.active {
  background: #efefef; font-weight: 600;
}

/* ------ Global Player: Volume popover & slider ------ */
#global-player { position: relative; }

/* 删除旧的右下角绝对定位版本，改用下面与触发按钮对齐的版本 */

/* 兜底：卡片左下角的图标与文字垂直居中（若已有同名规则，这段作为冗余保证） */
.history-metadata .metadata-item { display: inline-flex; align-items: center; gap: 6px; }

/* --- “更多选项”菜单系�?--- */
.player-more-options {
  position: relative; /* 用于菜单的绝对定�?*/
}

.more-options-menu {
  position: absolute;
  bottom: 100%; /* 定位在按钮上�?*/
  left: 50%;
  transform: translateX(-50%);
  width: max-content;
  padding: 6px;
  
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 16px;
  box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.05), 0px 10px 25px rgba(0, 0, 0, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.8);
  padding: 8px;
  z-index: 1000;
  width: 160px; /* 菜单宽度 */
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: all 0.2s ease;
}

.more-options-menu:not(.hidden) {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.more-options-menu .menu-item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 12px 16px;
  background: none;
  border: none;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  border-radius: 8px;
  color: #1a1a1a;
  transition: all 0.2s ease;
}

.more-options-menu .menu-item:hover {
  background-color: rgba(0, 0, 0, 0.05);
  transform: translateX(2px);
}

.more-options-menu .menu-icon {
  font-size: 16px;
  width: 20px;
  display: flex;
  justify-content: center;
}

.more-options-menu .menu-text {
  flex-grow: 1;
}

/* --- 播放器SVG图标控制 --- */
.play-pause-btn .icon-media {
  width: 24px; /* SVG图标的统一大小 */
  height: 24px;
}

/* 默认状态下：隐藏暂停图标，显示播放图标 */
.play-pause-btn .icon-pause {
  display: none;
}
.play-pause-btn .icon-play {
  display: block;
}

/* 当按钮有 .is-playing 类时：隐藏播放图标，显示暂停图标 */
.play-pause-btn.is-playing .icon-play {
  display: none;
}
.play-pause-btn.is-playing .icon-pause {
  display: block;
}

/* 新的 Composer 工具栏样�?*/
.composer-toolbar {
  display: inline-flex;
  align-items: center;
  border-radius: 50px;
  gap: 2px;
}

/* 移除工具栏内部按钮的独立边框和背�?*/
.composer-toolbar .control-btn {
  border: none;
  background: transparent;
  padding: 6px 10px;
  border-radius: 20px;
}

.composer-toolbar .control-btn:hover {
  background-color: #e9ecef; /* 添加悬停效果 */
}

/* 工具栏内部的分隔�?*/
.toolbar-separator {
  width: 1px;
  height: 16px;
  background-color: #dee2e6;
  margin: 0 6px;
}

/* --- 全局播放器音量控�?- 精修�?--- */

/* 1. 包裹容器：作为新的定位参照物 */
.volume-control-wrapper {
  position: relative; /* 关键：让内部的弹窗相对于它定�?*/
}

/* 2. 弹窗：相对于包裹容器进行绝对定位 */
#global-player .volume-popover {
  /* 移除旧的 right, bottom 属�?*/
  position: absolute;
  bottom: 120%; /* 定位在按钮上方，留出一些间�?*/
  left: 50%; /* 水平居中 */
  transform: translateX(-50%); /* 精确水平居中 */
  
  /* 其他样式保持，例�?*/
  width: 36px;
  height: 160px;
  padding: 12px 0;
  background: #fff;
  border: 1px solid var(--border, #eee);
  border-radius: 18px; /* 两端半圆 */
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
  display: none; /* 默认隐藏 */
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
/* 打开时显�?*/
#global-player .volume-popover.open { display: flex; }

/* 3. 滑块颜色定制（覆盖浏览器默认蓝色�?*/
#global-player .volume-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 120px; /* 轨道的长�?*/
  height: 4px;  /* 轨道的厚�?*/
  background: linear-gradient(to right, #000 0%, #000 var(--value-percent, 100%), #e0e0e0 var(--value-percent, 100%), #e0e0e0 100%);
  border-radius: 2px;
  outline: none;
  transform: rotate(-90deg);
}

/* Chrome, Safari, Edge */
#global-player .volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;       /* 滑块的大�?*/
  height: 16px;
  background: #000;  /* 滑块的颜�?*/
  border-radius: 50%;
  cursor: pointer;
  border: none;
}

/* Firefox */
#global-player .volume-slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  background: #000;
  border-radius: 50%;
  cursor: pointer;
  border: none;
}

/* Firefox - 轨道填充 */
#global-player .volume-slider::-moz-range-progress {
  background-color: #000;
  height: 4px;
  border-radius: 2px;
}

#global-player .volume-slider::-moz-range-track {
  background-color: #e0e0e0;
  height: 4px;
  border-radius: 2px;
}

/* --- 全局播放器更多选项菜单 --- */
.player-more-options {
  position: relative;
}

.more-options-menu {
  position: absolute;
  bottom: 125%; /* 定位在按钮上�?*/
  left: 50%;
  transform: translateX(-50%);
  width: max-content;
  padding: 6px;
  
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
  
  display: flex;
  flex-direction: column;
  gap: 4px;
  z-index: 1000;
  
  /* 默认隐藏，通过JS添加/移除 a */
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.more-options-menu:not(.hidden) {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.more-options-menu .menu-item {
  display: flex;         /* 关键：启用Flexbox布局 */
  align-items: center;   /* 关键：让图标和文字垂直居中对�?*/
  gap: 12px;             /* 图标和文字之间的间距 */
  width: 100%;
  padding: 10px 12px;    /* 调整内边距，让内容更舒�?*/
  background: none;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  color: #333;
  font-size: 14px;
  font-weight: 500;
  text-align: left;
  white-space: nowrap;
  transition: background-color 0.2s ease;
}

.more-options-menu .menu-item:hover {
  background-color: rgba(0, 0, 0, 0.07);
}

.more-options-menu .menu-item .icon-media {
  width: 20px;
  height: 20px;
  flex-shrink: 0; /* 防止图标被压�?*/
  fill: currentColor; /* 让SVG颜色继承按钮的文字颜�?*/
}

/* --- 子菜单通用 --- */
.more-options-menu .menu-item.has-submenu {
  position: relative;
}

.more-options-menu .menu-item.has-submenu:hover .speed-submenu,
.more-options-menu .menu-item.has-submenu:hover .playlist-submenu {
  display: flex;
}

/* --- 播放列表子菜�?--- */
.playlist-submenu {
  display: none; /* 默认隐藏 */
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%);
  margin-left: 8px;
  padding: 6px;
  
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
  
  flex-direction: column;
  gap: 4px;
  z-index: 2001;

  max-height: 250px;
  overflow-y: auto;
}

.playlist-submenu .submenu-item {
  display: flex;
  align-items: center;
  padding: 10px 15px;
  background: none;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  color: #333;
  font-size: 14px;
  font-weight: 400;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  width: 100%;
  min-width: 150px;
  text-align: left;
  transition: background-color 0.2s ease;
}

.playlist-submenu .submenu-item.active {
  background-color: rgba(0, 0, 0, 0.1);
  font-weight: 600;
}

.playlist-submenu .submenu-item:hover {
  background-color: rgba(0, 0, 0, 0.07);
}

.playlist-submenu::-webkit-scrollbar {
  width: 6px;
}
.playlist-submenu::-webkit-scrollbar-track {
  background: transparent;
  margin: 6px 0;
}
.playlist-submenu::-webkit-scrollbar-thumb {
  background-color: rgba(0, 0, 0, 0.2);
  border-radius: 3px;
}

/* --- 播放速度子菜�?--- */
.speed-submenu {
  display: none; /* 默认隐藏 */
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%);
  margin-left: 8px;
  padding: 6px;
  
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
  
  flex-direction: column;
  gap: 4px;
  z-index: 2001; /* 确保在主菜单之上 */
}

/* 关键：当鼠标悬停在父菜单项上时，显示子菜�?*/
.more-options-menu .menu-item.has-submenu:hover .speed-submenu {
  display: flex;
}

.speed-submenu .submenu-item {
  display: flex;
  align-items: center;
  padding: 8px 16px;
  background: none;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  color: #333;
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: background-color 0.2s ease;
}

.speed-submenu .submenu-item:hover {
  background-color: rgba(0, 0, 0, 0.07);
}

/* --- 卡片播放/暂停SVG图标控制 --- */
.history-play-btn svg {
  width: 24px; /* SVG图标的统一大小 */
  height: 24px;
  /* fill: currentColor; 确保SVG颜色能被CSS控制 */
}

/* 默认状态下：隐藏暂停图标，显示播放图标 */
.history-play-btn .icon-pause {
  display: none;
}
.history-play-btn .icon-play {
  display: block;
}

/* 当按钮有 .playing 类时：隐藏播放图标，显示暂停图标 */
.history-play-btn.playing .icon-play {
  display: none;
}
.history-play-btn.playing .icon-pause {
  display: block;
}

/* “更多选项”按钮的SVG样式 */
.history-menu-btn svg {
  width: 24px;
  height: 24px;
}

/* --- 全局播放�?- 播放列表子菜单美�?--- */
.playlist-submenu .submenu-item {
  display: flex;
  align-items: center;
  gap: 10px; /* 略微缩小 gap */
  padding: 10px 8px; /* 调整垂直和水平内边距 */
  width: 220px;
  margin-bottom: 6px; /* 增加底部外边�?*/
}

.playlist-submenu .submenu-thumbnail {
  width: 40px;
  height: 40px;
  border-radius: 8px; /* 更明显的圆角 */
  object-fit: cover; /* 确保图片填充并剪裁为正方�?*/
  flex-shrink: 0;
}

.playlist-submenu .submenu-title {
  font-weight: 500;
  color: #333;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis; /* 超出部分显示省略�?*/
}

.playlist-submenu .submenu-item.active {
  background-color: rgba(0, 0, 0, 0.1);
  font-weight: 600;
}

.playlist-submenu .submenu-item:not(.active):hover {
  background-color: rgba(0, 0, 0, 0.07);
}

/* --- 全新播放列表面板样式 --- */
#gp-playlist-menu-container {
  position: relative; /* 关键：为子面板提供定位锚�?*/
}

#playlist-panel {
  position: absolute;
  top: auto; /* 解除之前�?top: 50% 绑定 */
  bottom: calc(100% + 8px); /* 定位在父按钮上方，并�?8px 间距 */
  left: 50%; /* 水平基点设置为父按钮的中�?*/
  transform: translateX(-50%); /* 通过 transform 将面板自身向左移�?0%宽度，实现完美水平居�?*/
  
  width: 360px;
  max-height: 450px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(230, 230, 230, 0.7);
  border-radius: 16px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
  z-index: 2001; /* 比主菜单层级更高 */
  display: flex;
  flex-direction: column;
  overflow: hidden;

  /* 显示/隐藏动画 */
  opacity: 0;
  transform: translateX(-50%) translateY(10px); /* 初始位置在目标位置下�?0px */
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

#playlist-panel.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0); /* 移动到最终位�?*/
  pointer-events: auto;
}

.playlist-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  flex-shrink: 0;
}

.playlist-header h3 {
  font-size: 18px;
  font-weight: 600;
}

#playlist-list-content {
  list-style: none;
  padding: 12px;
  margin: 0;
  overflow-y: auto;
}

/* 滚动条美�?*/
#playlist-list-content::-webkit-scrollbar { width: 6px; }
#playlist-list-content::-webkit-scrollbar-track { background: transparent; }
#playlist-list-content::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.2); border-radius: 3px; }

.playlist-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 8px 12px; /* 减小垂直 padding �?8px */
  border-radius: 10px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.playlist-item:hover {
  background-color: rgba(0, 0, 0, 0.05);
}

.playlist-thumbnail {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  object-fit: cover;
  flex-shrink: 0;
}

.playlist-track-info {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: 2px; /* 减小 gap �?2px */
  min-width: 0; /* 防止长文本撑开布局 */
}

.playlist-title {
  font-weight: 500;
  font-size: 15px;
  color: #333;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.playlist-duration {
  font-size: 13px;
  color: #888;
}

/* 播放中指示器 */
.playing-indicator {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 16px;
  width: 20px;
}
.playing-indicator span {
  display: block;
  width: 3px;
  background-color: var(--accent);
  border-radius: 2px;
  animation: equalize 1.2s infinite ease-in-out;
}
.playing-indicator span:nth-child(1) { height: 100%; animation-delay: 0s; }
.playing-indicator span:nth-child(2) { height: 60%; animation-delay: -0.4s; }
.playing-indicator span:nth-child(3) { height: 80%; animation-delay: -0.8s; }

@keyframes equalize {
  0%, 100% { height: 20%; }
  50% { height: 100%; }
}

/* --- 资料库卡�?- 悬浮注释 (Tooltip) 样式 --- */
[data-tooltip]:not(.lh-sidebar [data-tooltip]) {
  position: relative; /* 关键：为 tooltip 提供定位锚点 */
}

/* Tooltip 基础样式 (默认隐藏) - 排除侧边�?*/
[data-tooltip]:not(.lh-sidebar [data-tooltip])::after {
  content: attr(data-tooltip); /* 关键：读�?data-tooltip 属性的内容 */
  position: absolute;
  bottom: 150%; /* 定位在图标正上方，并留出一些间�?*/
  left: 50%;
  transform: translateX(-50%);
  
  background-color: #333; /* 背景�?*/
  color: #fff; /* 文字颜色 */
  padding: 5px 10px; /* 内边�?*/
  border-radius: 6px; /* 圆角 */
  font-size: 12px; /* 字体大小 */
  font-weight: 500;
  white-space: nowrap; /* 防止文字换行 */
  z-index: 10;
  
  /* 默认隐藏，并为动画做准备 */
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease-in-out, transform 0.2s ease-in-out;
}

/* 鼠标悬浮时显�?Tooltip - 排除侧边�?*/
[data-tooltip]:not(.lh-sidebar [data-tooltip]):hover::after {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(-5px); /* 轻微向上移动，增加动�?*/
}

/* ================== 用户认证页面样式 ================== */

/* 认证页面容器 */
.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  padding: 20px;
}

/* 认证表单�?*/
.auth-box {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-large);
  padding: 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
}

.auth-box:hover {
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* 认证页面标题 */
.auth-title {
  font-size: 28px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 32px;
  color: var(--text);
  letter-spacing: -0.5px;
}

/* 登录方式切换 Tab */
.login-tabs {
  display: flex;
  margin-bottom: 24px;
  border-radius: var(--radius);
  background: rgba(0, 0, 0, 0.05);
  padding: 4px;
  gap: 4px;
}

.tab-btn {
  flex: 1;
  padding: 10px 16px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  border-radius: calc(var(--radius) - 4px);
  cursor: pointer;
  transition: all 0.2s ease;
}

.tab-btn:hover {
  background: rgba(0, 0, 0, 0.1);
  color: var(--text);
}

.tab-btn.active {
  background: var(--accent);
  color: white;
  box-shadow: 0 2px 8px rgba(233, 30, 99, 0.3);
}

/* Tab 内容 */
.tab-content {
  display: none;
}

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

/* 密码输入�?*/
.password-input-group {
  position: relative;
  display: flex;
  align-items: center;
}

.password-input-group input {
  padding-right: 50px;
}

.toggle-password-btn {
  position: absolute;
  right: 8px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: 4px;
  transition: background 0.2s ease;
  font-size: 16px;
}

.toggle-password-btn:hover {
  background: rgba(0, 0, 0, 0.1);
}

/* 表单提示文字 */
.form-hint {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* 忘记密码链接 */
.forgot-password-link {
  text-align: center;
  margin-top: 12px;
}

.forgot-password-link a {
  color: var(--accent);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s ease;
}

.forgot-password-link a:hover {
  color: #d81b60;
  text-decoration: underline;
}

/* 弹窗样式 */
.modal {
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-large);
  padding: 24px;
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.modal-header h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
}

.close {
  font-size: 24px;
  font-weight: bold;
  cursor: pointer;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

.close:hover {
  color: var(--text);
}

.modal-body {
  margin-bottom: 20px;
}

/* 设置项样�?*/
.setting-actions {
  margin-left: auto;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

/* 身份验证选项 */
.auth-options {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.radio-option {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.radio-option input[type="radio"] {
  margin: 0;
}

.otp-input-group {
  display: flex;
  gap: 8px;
}

.otp-input-group input {
  flex: 1;
}

.otp-input-group button {
  white-space: nowrap;
}

/* 表单�?*/
.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--text);
  font-size: 14px;
}

.form-group input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 16px;
  font-family: var(--font-family);
  background: var(--bg);
  color: var(--text);
  transition: all 0.2s ease;
}

.form-group input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(233, 30, 99, 0.1);
}

.form-group input:hover {
  border-color: var(--text-secondary);
}

/* 认证按钮 */
.auth-button {
  width: 100%;
  padding: 14px 20px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 600;
  font-family: var(--font-family);
  cursor: pointer;
  transition: all 0.2s ease;
  margin-bottom: 24px;
}

.auth-button:hover {
  background: #d81b60;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(233, 30, 99, 0.3);
}

.auth-button:active {
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(233, 30, 99, 0.3);
}

/* 页面切换链接 */
.auth-switch {
  text-align: center;
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 16px;
}

.auth-switch a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s ease;
}

.auth-switch a:hover {
  color: #d81b60;
  text-decoration: underline;
}

/* 错误信息 */
.error-message {
  text-align: center;
  color: #dc3545;
  font-size: 14px;
  margin-top: 16px;
  padding: 12px;
  background: rgba(220, 53, 69, 0.1);
  border: 1px solid rgba(220, 53, 69, 0.2);
  border-radius: var(--radius);
  display: none;
}

.error-message:not(:empty) {
  display: block;
}

/* 成功信息（通过JavaScript动态设置） */
.error-message.success {
  color: #28a745;
  background: rgba(40, 167, 69, 0.1);
  border-color: rgba(40, 167, 69, 0.2);
}

/* 响应式设�?*/
@media (max-width: 480px) {
  .auth-container {
    padding: 16px;
  }
  
  .auth-box {
    padding: 32px 24px;
    margin: 0 auto;
  }
  
  .auth-title {
    font-size: 24px;
    margin-bottom: 24px;
  }
  
  .form-group {
    margin-bottom: 20px;
  }
  
  .auth-button {
    padding: 12px 16px;
    font-size: 15px;
  }
}

/* 暗色主题适配 */
@media (prefers-color-scheme: dark) {
  .auto-theme .auth-box {
    background: var(--bg);
    border-color: var(--border);
  }
  
  .auto-theme .form-group input {
    background: var(--bg);
    border-color: var(--border);
    color: var(--text);
  }
}

.dark .auth-box {
  background: var(--bg);
  border-color: var(--border);
}

.dark .form-group input {
  background: var(--bg);
  border-color: var(--border);
  color: var(--text);
}
  
  .form-group input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(233, 30, 99, 0.2);
  }
  
  .error-message {
    background: rgba(220, 53, 69, 0.15);
    border-color: rgba(220, 53, 69, 0.3);
  }
  
  .error-message.success {
    background: rgba(40, 167, 69, 0.15);
    border-color: rgba(40, 167, 69, 0.3);
  }

/* --- User Profile Section in Sidebar --- */
.nav-user {
  border-top: 1px solid var(--border);
  padding-top: 12px;
  margin-top: 12px;
}

/* 用户下拉容器 */
.user-dropdown-container {
  position: relative;
}

/* 用户头像按钮 */
.user-profile-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 8px;
  background: transparent;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: left;
  color: var(--text);
}

.user-profile-btn:hover {
  background: rgba(0, 0, 0, 0.05);
  transform: scale(1.02);
}

.user-profile-btn.active {
  background: rgba(0, 0, 0, 0.08);
}

.user-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--accent);
  color: var(--bg);
  font-weight: 600;
  font-size: 14px;
  flex-shrink: 0;
}

/* 用户下拉菜单 */
.user-dropdown-menu {
  position: absolute;
  top: 50%;
  left: 100%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  margin-left: 8px;
  padding: 8px;
  z-index: 1000;
  opacity: 1;
  visibility: visible;
  transition: all 0.2s ease;
  min-width: 160px;
}

.user-dropdown-menu.hidden {
  opacity: 0;
  visibility: hidden;
  transform: translateY(-50%) translateX(-10px);
  pointer-events: none;
}

/* 下拉菜单�?*/
.dropdown-item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 10px 12px;
  background: none;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  text-align: left;
  transition: all 0.2s ease;
}

.dropdown-item:hover {
  background: rgba(0, 0, 0, 0.05);
  transform: translateX(2px);
}

/* 下拉菜单图标 */
.dropdown-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  stroke-width: 1.5;
}

/* 退出选项的特殊样�?*/
.dropdown-item.logout-item {
  color: #e74c3c;
}

.dropdown-item.logout-item:hover {
  background: rgba(231, 76, 60, 0.1);
  color: #c0392b;
}

/* 分隔�?*/
.dropdown-divider {
  height: 1px;
  background: rgba(0, 0, 0, 0.1);
  margin: 4px 0;
}

/* 暗色主题适配 */
@media (prefers-color-scheme: dark) {
  .auto-theme .user-profile-btn:hover {
    background: rgba(255, 255, 255, 0.08);
  }
  
  .auto-theme .user-profile-btn.active {
    background: rgba(255, 255, 255, 0.12);
  }
  
  .auto-theme .user-dropdown-menu {
    background: rgba(42, 42, 46, 0.95);
    border-color: rgba(255, 255, 255, 0.1);
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
  }
  
  .auto-theme .dropdown-item:hover {
    background: rgba(255, 255, 255, 0.08);
  }
  
  .auto-theme .dropdown-item.logout-item:hover {
    background: rgba(231, 76, 60, 0.15);
  }
  
  .auto-theme .dropdown-divider {
    background: rgba(255, 255, 255, 0.1);
  }
}

.dark .user-profile-btn:hover {
  background: rgba(255, 255, 255, 0.08);
}

.dark .user-profile-btn.active {
  background: rgba(255, 255, 255, 0.12);
}

.dark .user-dropdown-menu {
  background: rgba(42, 42, 46, 0.95);
  border-color: rgba(255, 255, 255, 0.1);
  left: 100%;
  top: 50%;
  transform: translateY(-50%);
}

.dark .dropdown-item:hover {
  background: rgba(255, 255, 255, 0.08);
}

.dark .dropdown-item.logout-item:hover {
  background: rgba(231, 76, 60, 0.15);
}

.dark .dropdown-divider {
  background: rgba(255, 255, 255, 0.1);
}

/* 收缩状态下的用户菜�?*/
.lh-sidebar.is-collapsed .user-dropdown-menu {
  left: calc(100% + 8px);
  top: 50%;
  transform: translateY(-50%);
  right: auto;
  min-width: 200px;
}

/* ==================== 账户设置模态框样式 ==================== */

.account-settings-modal {
  max-width: 500px;
  width: 90vw;
  max-height: 80vh;
  overflow-y: auto;
}

/* 基本信息区域 */
.basic-info-section {
  margin-bottom: 32px;
}

.basic-info-section h4 {
  margin: 0 0 20px 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
}

.user-info-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: #f8f9fa;
  border-radius: 12px;
}

.user-avatar-container {
  flex-shrink: 0;
}

.user-avatar-display {
  position: relative;
}

.user-avatar-large {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  font-weight: 600;
  font-size: 24px;
  border: 3px solid white;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.user-details {
  flex: 1;
}

.user-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.user-email {
  font-size: 14px;
  color: var(--text-secondary);
}

.edit-actions {
  flex-shrink: 0;
}

.edit-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #e91e63;
  border: none;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  box-shadow: 0 2px 4px rgba(233, 30, 99, 0.3);
}

.edit-btn:hover {
  background: #c2185b;
  transform: scale(1.05);
}

.edit-icon {
  width: 16px;
  height: 16px;
}

/* 安全设置区域 */
.security-section {
  margin-bottom: 32px;
}

.security-section h4 {
  margin: 0 0 20px 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
}

.security-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.security-info {
  flex: 1;
}

.security-title {
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 4px;
}

.security-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
}

.modify-password-btn {
  padding: 8px 16px;
  background: #e91e63;
  border: none;
  border-radius: 6px;
  color: white;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
}

.modify-password-btn:hover {
  background: #c2185b;
  transform: translateY(-1px);
}

/* 退出登录区�?*/
.logout-section {
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  padding-top: 24px;
  text-align: right;
}

.logout-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: transparent;
  border: none;
  color: #e91e63;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  transition: all 0.2s ease;
  border-radius: 6px;
}

.logout-btn:hover {
  background: rgba(233, 30, 99, 0.1);
}

.logout-icon {
  width: 20px;
  height: 20px;
}

/* ==================== 编辑个人信息模态框样式 ==================== */

.edit-profile-modal {
  max-width: 400px;
  width: 90vw;
}

.edit-avatar-section {
  text-align: center;
  margin-bottom: 24px;
}

.avatar-preview {
  display: inline-block;
  position: relative;
}

.avatar-preview-img {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  font-weight: 600;
  font-size: 32px;
  margin-bottom: 12px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.change-avatar-btn {
  padding: 6px 12px;
  background: #f0f0f0;
  border: 1px solid #ddd;
  border-radius: 4px;
  color: var(--text);
  cursor: pointer;
  font-size: 12px;
  transition: all 0.2s ease;
}

.change-avatar-btn:hover {
  background: #e0e0e0;
}

.edit-username-section {
  margin-bottom: 24px;
}

.edit-username-section label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 8px;
}

.edit-username-section input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 14px;
  color: var(--text);
  background: white;
}

.edit-username-section input:focus {
  outline: none;
  border-color: #e91e63;
  box-shadow: 0 0 0 2px rgba(233, 30, 99, 0.2);
}

.edit-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

.btn-save, .btn-cancel {
  padding: 8px 16px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-weight: 500;
}

.btn-save {
  background: #e91e63;
  color: white;
}

.btn-save:hover {
  background: #c2185b;
}

.btn-cancel {
  background: #f0f0f0;
  color: var(--text);
  border: 1px solid #ddd;
}

.btn-cancel:hover {
  background: #e0e0e0;
}

/* ==================== 修改密码模态框样式 ==================== */

.change-password-modal {
  max-width: 400px;
  width: 90vw;
}

.password-form {
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 20px;
}

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

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 6px;
}

.form-group input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 14px;
  color: var(--text);
  background: white;
}

.form-group input:focus {
  outline: none;
  border-color: #e91e63;
  box-shadow: 0 0 0 2px rgba(233, 30, 99, 0.2);
}

.password-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

/* ==================== 通用设置样式 ==================== */

/* 设置项通用布局 */
.setting-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.setting-item:last-child {
  border-bottom: none;
}

.setting-info {
  flex: 1;
  margin-right: 16px;
}

.setting-title {
  font-weight: 500;
  color: var(--text);
  margin-bottom: 4px;
  font-size: 14px;
}

.setting-desc {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.4;
}

.setting-status {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 下拉选择�?*/
.setting-select {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  cursor: pointer;
  min-width: 120px;
  transition: border-color 0.2s ease;
}

.setting-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(233, 30, 99, 0.1);
}

/* 切换开�?*/
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  cursor: pointer;
}

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

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #ccc;
  transition: 0.3s;
  border-radius: 12px;
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: 0.3s;
  border-radius: 50%;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

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

.toggle-switch input:focus + .toggle-slider {
  box-shadow: 0 0 0 3px rgba(233, 30, 99, 0.1);
}

.toggle-switch input:checked + .toggle-slider:before {
  transform: translateX(20px);
}

/* 音量滑块 */
.volume-range {
  width: 100px;
  height: 4px;
  border-radius: 2px;
  background: #ddd;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.volume-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.volume-range::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

#volume-display {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
  min-width: 35px;
  text-align: center;
}

/* 暗色主题适配 */
@media (prefers-color-scheme: dark) {
  .auto-theme .setting-item {
    border-bottom-color: rgba(255, 255, 255, 0.05);
  }
  
  .auto-theme .setting-select {
    background: var(--bg);
    border-color: var(--border);
    color: var(--text);
  }
}

.dark .setting-item {
  border-bottom-color: rgba(255, 255, 255, 0.05);
}

.dark .setting-select {
  background: var(--bg);
  border-color: var(--border);
  color: var(--text);
}

.dark .toggle-slider {
  background-color: #555;
}

.dark .volume-range {
  background: #555;
}

/* ==================== 性能优化模式 ==================== */

/* 3) 性能优先模式：关闭或减轻重型效果 */
html.perf-lite .modal {
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  background: rgba(0,0,0,.35);
}

html.perf-lite #global-player {
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  background: rgba(255,255,255,.98);
  box-shadow: 0 4px 12px rgba(0,0,0,.08);
}

html.perf-lite .history-card {
  box-shadow: 0 1px 4px rgba(0,0,0,.06);
}



/* ===== 验证码登录样式扩�?===== */
.code-input-group {
  display: flex;
  gap: 10px;
  align-items: center;
}

.code-input-group input {
  flex: 1;
}

.code-btn {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius);
  padding: 8px 16px;
  font-size: 14px;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s ease;
  min-width: 100px;
  font-weight: 500;
}

.code-btn:hover:not(:disabled) {
  background: #d81b60;
  transform: translateY(-1px);
}

.code-btn:disabled {
  background: #94a3b8;
  cursor: not-allowed;
  transform: none;
}

.auth-switch-methods {
  text-align: center;
  margin: 16px 0;
}

.method-toggle {
  color: var(--accent);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s ease;
}

.method-toggle:hover {
  color: #d81b60;
  text-decoration: underline;
}

.legacy-section {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.error-message[style*="color: rgb(76, 175, 80)"] {
  color: #22c55e !important;
  background: rgba(34, 197, 94, 0.1) !important;
  border-color: rgba(34, 197, 94, 0.2) !important;
}

/* ===== 设置模态框样式 ===== */
.settings-modal {
  max-width: 600px;
  max-height: 80vh;
  overflow-y: auto;
}

.settings-section {
  margin-bottom: 32px;
}

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

.settings-section h4 {
  margin: 0 0 16px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.account-info {
  background: rgba(0, 0, 0, 0.02);
  border-radius: var(--radius);
  padding: 16px;
}

.info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.info-row:last-child {
  margin-bottom: 0;
}

.info-label {
  font-weight: 500;
  color: var(--text-secondary);
}

.info-value {
  font-weight: 500;
  color: var(--text);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.status-badge.verified {
  background: rgba(34, 197, 94, 0.1);
  color: #22c55e;
}

.status-badge.unverified {
  background: rgba(251, 146, 60, 0.1);
  color: #f59e0b;
}

.status-badge.disabled {
  background: rgba(156, 163, 175, 0.1);
  color: #6b7280;
}

.email-bind-section {
  background: rgba(0, 0, 0, 0.02);
  border-radius: var(--radius);
  padding: 16px;
}

.bind-form .form-group {
  margin-bottom: 16px;
}

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

.bind-form label {
  display: block;
  margin-bottom: 6px;
  font-weight: 500;
  color: var(--text);
  font-size: 14px;
}

.bind-form input[type="email"],
.bind-form input[type="text"] {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  transition: border-color 0.2s ease;
}

.bind-form input[type="email"]:focus,
.bind-form input[type="text"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(233, 30, 99, 0.1);
}

.email-bound-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.bound-email {
  display: flex;
  align-items: center;
  gap: 8px;
}

.email-display {
  font-weight: 500;
  color: var(--text);
}

.verified-badge {
  color: #22c55e;
  font-size: 14px;
  font-weight: 500;
}

.login-settings {
  background: rgba(0, 0, 0, 0.02);
  border-radius: var(--radius);
  padding: 16px;
}

.setting-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.setting-info {
  flex: 1;
}

.setting-title {
  font-weight: 500;
  color: var(--text);
  margin-bottom: 4px;
}

.setting-desc {
  font-size: 12px;
  color: var(--text-secondary);
}

.setting-status {
  flex-shrink: 0;
}

/* Modal aria-hidden 样式控制 */
.modal[aria-hidden="true"] { 
  display: none; 
}
.modal[aria-hidden="false"] { 
  display: flex; 
}

/* ===== Credits badge (sidebar) ===== */
.nav-item .badge#credits-badge {
  min-width: 24px;
  height: 20px;
  padding: 0 6px;
  font-size: 12px;
  line-height: 20px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-left: 8px;
}

/* ---- Sidebar credits: right-align number on the same row ---- */
#nav-credits {
  display: grid;                 /* 独立控制该项�?3 列网�?*/
  grid-template-columns: 44px 1fr auto; /* 图标 / 文本 / 数字 */
  align-items: center;
  padding-right: 10px;           /* 给右侧留一点安全边�?*/
}

#nav-credits #credits-badge {
  display: inline-flex;          /* 覆盖通用的隐藏规�?*/
  justify-self: end;             /* 靠右对齐 */
  margin-left: 8px;              /* �?积分"文本拉开距离 */
}

/* 侧边栏收缩为图标模式时隐藏数字，避免拥挤 */
.lh-sidebar.is-collapsed #nav-credits #credits-badge { display: none; }

/* ===== Billing Modal ===== */
.billing-modal[aria-hidden="true"] { display: none; }
.billing-modal .billing-xl { width: min(1120px, 94vw); }

.billing-modal .modal-header {
  display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid #eee;
}
.billing-modal .modal-body { padding-top: 12px; }

/* Wallet */
.wallet-row {
  display: flex; gap: 16px; align-items: center; justify-content: space-between;
  padding: 12px 0 20px;
}
.wallet-balance .wallet-label { color:#666; margin-right: 8px; }
.wallet-balance .wallet-value { font-size: 22px; font-weight: 700; }

/* Plan cards */
.plan-grid {
  display: grid; grid-template-columns: 1fr; gap: 20px;
}
@media (min-width: 960px) {
  .plan-grid { grid-template-columns: 1fr 1fr; }
}
.plan-card {
  border: 1px solid #eee; border-radius: 16px; padding: 22px; background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,.03);
  position: relative;
}
.plan-card.popular { outline: 2px solid rgba(120, 92, 221, 0.25); }
.plan-card .plan-badge {
  position: absolute; top: -12px; left: 16px; background: #EAE4FF; color: #6E56CF;
  font-size: 12px; padding: 4px 8px; border-radius: 999px;
}
.plan-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 6px; }
.plan-name { font-size: 17px; font-weight: 700; }
.plan-price { font-size: 24px; font-weight: 800; }
.plan-price .cur { font-size: 16px; margin-right: 2px; }
.plan-price .per { font-size: 12px; color:#666; margin-left: 2px; }
.plan-feats { margin: 10px 0 18px; padding-left: 18px; }
.plan-feats li { font-size: 13px; line-height: 1.7; margin: 4px 0; }
.plan-cta { width: 100%; }

.plan-notes { color:#666; font-size: 13px; margin-top: 10px; }

/* 管理订阅按钮样式 */
#manage-subscription-row { 
  text-align: center; 
  margin-top: 16px; 
}
#manage-subscription-row .btn { 
  min-width: 200px; 
  padding: 12px 24px; 
  font-size: 14px; 
}

/* Buttons (re-use existing tokens) */
.btn { border-radius: 10px; padding: 10px 14px; cursor: pointer; border: 1px solid transparent; }
.btn-dark { background:#111; color:#fff; }
.btn-secondary { background:#f5f5f5; color:#111; }
.btn:hover { opacity:.92; }

/* ---- Billing: minimalist close (no square border) ---- */
.billing-modal .modal-header .close {
  background: transparent;   /* 去背�?*/
  border: none;              /* 去边�?*/
  box-shadow: none;          /* 去阴�?*/
  outline: none;
  width: 32px; height: 32px; /* 保留可点区域 */
  border-radius: 50%;
  font-size: 20px;
  line-height: 32px;
  color: var(--text-secondary);
  cursor: pointer;
}
.billing-modal .modal-header .close:hover {
  background: rgba(0,0,0,.06); /* 仅悬停给轻微雾面圆形 */
}

/* === Settings two-column layout === */
.settings-grid{
  display:grid;
  grid-template-columns:200px minmax(720px, 1fr);
  gap:24px;
  min-height:420px;
}
.settings-categories{
  border-right:1px solid var(--border-color,#e9ecef);
  padding-right:8px;
  display:flex; flex-direction:column; gap:8px;
}
.settings-cat-item{
  text-align:left;
  width:100%;
  padding:10px 12px;
  border-radius:10px;
  background:transparent;
  border:1px solid transparent;
  cursor:pointer;
  font-size:15px;
}
.settings-cat-item:hover{ background:var(--hover-bg,#f6f7f8); }
.settings-cat-item.active{
  background:var(--active-bg,#f1f3f5);
  border-color:var(--border-color,#e9ecef);
  font-weight:600;
}

.settings-panels{ 
  padding-left: 8px; 
  padding-right: 8px;
}
.settings-panel{ display:block; }
.settings-panel.hidden{ display:none; }
.panel-title{ 
  font-size:16px; font-weight:700; margin: 8px 0 16px; 
}

.setting-item{
  display:flex; justify-content:space-between; align-items:center;
  padding:12px 0; border-top:1px solid var(--border-color,#eee);
}
.setting-item:first-of-type{ border-top:none; }
.setting-item-left{ 
  max-width: 48%;           /* �?60% �?48%，右侧控件区域更�?*/
}
.setting-label{ font-weight:600; }
.setting-desc{ color:#8a8f98; font-size:12px; margin-top:4px; }
.setting-item-right{ 
  display:flex; align-items:center; gap: 12px;                /* 控件与数值间距略�?*/
}

/* 订阅卡片 */
.subscription-card{
  border:1px solid var(--border-color,#e9ecef);
  border-radius:14px; padding: 18px;            /* 略增留白 */
  display:flex; justify-content:space-between; align-items:center;
  gap:16px;
  background:var(--card-bg,#fafbfc);
}
.subscription-card .sub-plan .badge{
  display:inline-block;
  padding:4px 10px; border-radius:999px;
  background:#111; color:#fff; font-size:12px; font-weight:600;
}
.subscription-card .sub-credits{ 
  margin:10px 0; font-size: 15px; 
}
.subscription-card .sub-note{ color:#8a8f98; font-size:12px; }

/* 订阅卡片右侧按钮样式优化 */
.subscription-card .sub-right {
  flex-shrink: 0;
  min-width: 80px; /* 确保按钮有足够的最小宽�?*/
}

.subscription-card .sub-right button {
  white-space: nowrap; /* 防止按钮文字换行 */
  min-width: 80px; /* 与容器最小宽度保持一�?*/
}
.btn-xs{ padding:4px 8px; font-size:12px; border-radius:8px; }

/* 小开关样式，若你已有可忽�?*/
.switch{ position:relative; display:inline-block; width:44px; height:24px; }
.switch input{ opacity:0; width:0; height:0; }
.slider{ position:absolute; cursor:pointer; inset:0; background:#cfd4da; border-radius:999px; transition:.2s;}
.slider:before{ content:""; position:absolute; height:18px; width:18px; left:3px; top:3px; background:white; border-radius:50%; transition:.2s;}
.switch input:checked + .slider{ background:#111; }
.switch input:checked + .slider:before{ transform:translateX(20px); }

/* 底部保存�?*/
.settings-footer{ margin-top:12px; text-align:right; }

/* 面板内保存按钮样�?*/
.panel-footer {
  margin-top: 20px;
  text-align: right;
}

.panel-footer .btn-primary {
  min-width: 100px;
}

/* === Settings layout tuning: make right column wider === */

/* 让设置弹窗整体更宽一些（不改其他弹窗�?*/
#settings-modal .modal-content {
  width: min(1080px, 95vw);  /* 原来较窄，扩大到 ~1080px */
}

/* ===== Settings modal (two-column) �?wide & no inner scrollbars ===== */
#settings-modal .modal-content {
  /* 扩宽到桌面观感合适的范围，去掉内部滚�?*/
  width: min(1040px, 96vw);
  max-height: 70vh;
  overflow: visible;
  box-sizing: border-box;
}

/* 去掉 body 容器的溢出滚动，避免右侧滚动�?*/
#settings-modal .modal-body {
  max-height: 90vh;
  overflow: visible;
}

/* 两列栅格：左侧目�?+ 右侧内容 */
#settings-modal .settings-grid,
#settings-modal .settings-columns,
#settings-modal .settings-container {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

/* 右侧面板不要撑破容器 */
#settings-modal .settings-panel,
#settings-modal .settings-right {
  max-width: 100%;
  overflow: visible;
}

/* 避免任何子元素写死宽度导致水平滚�?*/
#settings-modal .modal-content * {
  box-sizing: border-box;
  max-width: 100%;
}

/* 窄屏自适应为一列（避免再出现水平滚动） */
@media (max-width: 900px) {
  #settings-modal .modal-content { width: 94vw; }
  #settings-modal .settings-grid,
  #settings-modal .settings-columns,
  #settings-modal .settings-container {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

/* ==================== 修复菜单层级问题 ==================== */

/* Fix: 强制提高菜单层级，防止被其他规则覆盖 */
.history-menu-dropdown {
  z-index: 2200 !important; /* 使用 !important 确保优先级最�?*/
}

/* 确保激活状态的菜单卡片在最上层 */
.history-card.menu-active {
  z-index: 15 !important; /* 确保激活菜单的卡片在最上层 */
  position: relative; /* 确保z-index生效 */
}

/* ==================== 详情页样�?==================== */

/* 详情页容�?*/
.history-detail-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

/* 返回按钮 */
.detail-back-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
  padding: 8px 0;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: color 0.2s ease;
}

.detail-back-btn:hover {
  color: var(--text);
}

.detail-back-btn svg {
  width: 16px;
  height: 16px;
}

/* 详情页标题区�?*/
.detail-header {
  display: flex;
  gap: 24px;
  margin-bottom: 32px;
  align-items: flex-start;
}

.detail-thumbnail {
  width: 150px;
  height: 150px;
  border-radius: 12px;
  object-fit: cover;
  border: 1px solid var(--border);
  flex-shrink: 0;
}

.detail-content {
  flex: 1;
}

.detail-title {
  font-size: 28px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 16px 0;
  line-height: 1.3;
}

/* 元数据区�?*/
.detail-metadata {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
  align-items: center;
}

.metadata-item {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  font-size: 14px;
}

.metadata-item svg {
  width: 16px;
  height: 16px;
  color: var(--text-secondary);
}

.metadata-divider {
  color: var(--border);
  font-weight: 300;
}

/* 操作按钮区域 */
.detail-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.detail-action-btn {
  background: #000;
  color: white;
  border: none;
  padding: 8px 16px;
  border-radius: 8px;
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.detail-action-btn:hover {
  background: #333;
  transform: translateY(-1px);
}

.detail-action-btn svg {
  width: 16px;
  height: 16px;
}

/* 脚本内容区域 */
.detail-script-section {
  padding-top: 24px;
}

.detail-script-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 16px 0;
}

.detail-script-content {
  background: #f8f9fa;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 500px;
  overflow-y: auto;
}

/* 深色模式适配 */
.dark .history-detail-container {
  box-shadow: var(--shadow);
}

.dark .detail-title {
  color: var(--text);
}

.dark .detail-script-content {
  background: var(--bg-tertiary);
  border-color: var(--border);
  color: var(--text);
}

/* 响应式设�?*/
@media (max-width: 768px) {
  .detail-header {
    flex-direction: column;
    gap: 16px;
  }
  
  .detail-thumbnail {
    width: 100px;
    height: 100px;
  }
  
  .detail-title {
    font-size: 24px;
  }
  
  .detail-metadata {
    gap: 12px;
  }
  
  .detail-actions {
    gap: 8px;
  }
  
  .detail-action-btn {
    padding: 10px 16px;
    font-size: 13px;
  }
}

@media (max-width: 480px) {
  .history-detail-container {
    padding: 16px;
  }
  
  .detail-title {
    font-size: 20px;
  }
  
  .detail-metadata {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  
  .detail-actions {
    flex-direction: column;
  }
  
  .detail-action-btn {
    width: 100%;
    justify-content: center;
  }
}

/* 来源信息样式 */
.source-info {
  cursor: pointer;
  text-decoration: underline;
  color: var(--accent);
  transition: color 0.2s ease;
}

.source-info:hover {
  color: var(--accent-hover);
}

/* 右侧边栏样式 */
.source-sidebar {
  position: fixed;
  top: 0;
  right: -400px;
  width: 400px;
  height: 100vh;
  background: white;
  border-left: 1px solid var(--border);
  box-shadow: -2px 0 10px rgba(0,0,0,0.1);
  transition: right 0.3s ease;
  z-index: 1000;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.source-sidebar.show {
  right: 0;
}

.sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
}

.sidebar-header h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
}

.close-sidebar {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text-secondary);
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.close-sidebar:hover {
  background: var(--bg-tertiary);
  color: var(--text);
}

.sidebar-content {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
}

.sidebar-content pre {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: inherit;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
}

/* 深色模式适配 */
.dark .source-sidebar {
  background: var(--bg-secondary);
  border-left-color: var(--border);
}

.dark .sidebar-header {
  background: var(--bg-tertiary);
}

/* 响应式设�?*/
@media (max-width: 768px) {
  .source-sidebar {
    width: 100%;
    right: -100%;
  }
}

/* ==================== 帮助中心专用样式 ==================== */
/* 帮助中心：更清爽的层次与留白 */
#help-modal .modal-content{
  width: min(720px, calc(100vw - 48px));
  border-radius: 16px;
  padding: 20px 24px;
}

#help-modal .modal-header{
  align-items: center;
  padding-bottom: 10px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--border-color, #eee);
}

#help-modal .modal-header h3{
  margin: 0;
  font-size: 20px;
  line-height: 1.35;
  letter-spacing: .2px;
}

#help-modal .modal-body{
  padding-top: 8px;
}

#help-modal .modal-body h4{
  margin: 6px 0 10px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-2, #444);
}

#help-modal .modal-body ol{
  margin: 0;
  padding-left: 1.25rem;            /* 数字与正文保持适度缩进 */
  display: grid;
  row-gap: 8px;                      /* 列表项垂直间�?*/
}

#help-modal .modal-body li{
  line-height: 1.75;
  color: var(--text-1, #333);
}

/* 让右上角"×"与标题不挤在一起（若你的按钮是绝对定位可忽略） */
#help-modal .modal-header .close-btn{
  margin-left: auto;
}

/* === 音色面板模式切换样式 === */

/* 单人模式：完全隐藏顶部槽位区（S1/S2�?*/
.voice-dropdown.single .voice-selection-status { 
  display: none; 
}

/* 对话模式：槽位胶囊的视觉优化 */
.voice-dropdown.role .voice-slot {
  border-radius: 999px;
  padding: 10px 14px;
  min-width: 96px;
  box-shadow: var(--shadow-light, 0 2px 8px rgba(0,0,0,.08));
}

.voice-dropdown.role .voice-slot.selected {
  border-color: var(--accent);
  background: rgba(233, 30, 99, 0.08);
}

/* 槽位标签与名称的层级感更�?*/
.voice-slot-label { 
  opacity: .85; 
  letter-spacing: .6px; 
}

.voice-slot-name { 
  font-weight: 600; 
}

/* 交换按钮更醒目、可触达 */
.voice-swap-btn {
  width: 36px; 
  height: 36px;
  border-radius: 999px;
  box-shadow: var(--shadow-light, 0 2px 8px rgba(0,0,0,.08));
}

/* 卡片 hover 的指派意图更明显 */
.voice-item:hover { 
  border-color: var(--accent); 
  transform: translateY(-1px); 
}

/* 主按钮上的状态摘要（JS 会更新文本） */
#voice-select-text { 
  max-width: 180px; 
  text-overflow: ellipsis; 
  overflow: hidden; 
  white-space: nowrap; 
}

.voice-dropdown.single .voice-selection-status { 
  display: none; 
}

.voice-dropdown.role .voice-slot {
  border-radius: 999px;
  padding: 10px 14px;
  min-width: 96px;
  box-shadow: var(--shadow-light, 0 2px 8px rgba(0,0,0,.08));
}

.voice-dropdown.role .voice-slot.selected {
  border-color: var(--accent);
  background: rgba(233, 30, 99, 0.08);
}

.voice-slot-label { 
  opacity: .85; 
  letter-spacing: .6px; 
}

.voice-slot-name { 
  font-weight: 600; 
}

.voice-swap-btn {
  width: 36px;
  height: 36px;
  border-radius: 999px;
  box-shadow: var(--shadow-light, 0 2px 8px rgba(0,0,0,.08));
}

.voice-item:hover {
  border-color: var(--accent);
}

/* ==================== Mobile Refresh ==================== */

.mobile-nav-shell,
.mobile-drawer,
.mobile-drawer-backdrop {
  display: none;
}

@media (max-width: 768px) {
  body.mobile-drawer-open {
    overflow: hidden;
  }

  .app-frame {
    min-height: 100dvh;
  }

  .content-rail {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    min-width: 0;
  }

  .content-rail > .page {
    max-width: none;
    width: 100%;
  }

  .mobile-nav-shell {
    display: block;
    position: sticky;
    top: 0;
    z-index: 2600;
  }

  .mobile-topbar {
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr) 44px;
    align-items: center;
    gap: 12px;
    padding: 12px 16px 14px;
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 255, 255, 0.92) 100%);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  }

  .dark .mobile-topbar {
    background:
      linear-gradient(180deg, rgba(26, 26, 29, 0.96) 0%, rgba(26, 26, 29, 0.9) 100%);
    border-bottom-color: rgba(255, 255, 255, 0.08);
  }

  .mobile-nav-btn,
  .mobile-brand {
    border: none;
    background: none;
    color: var(--text);
  }

  .mobile-nav-btn {
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: rgba(15, 23, 42, 0.04);
    cursor: pointer;
    transition: transform 0.2s ease, background-color 0.2s ease;
  }

  .mobile-nav-btn:hover {
    transform: translateY(-1px);
    background: rgba(15, 23, 42, 0.08);
  }

  .dark .mobile-nav-btn {
    background: rgba(255, 255, 255, 0.06);
  }

  .dark .mobile-nav-btn:hover {
    background: rgba(255, 255, 255, 0.1);
  }

  .mobile-nav-btn--primary {
    background: #111111;
    color: #ffffff;
    box-shadow: 0 10px 26px rgba(15, 23, 42, 0.16);
  }

  .mobile-nav-btn--primary:hover {
    background: #1f1f1f;
  }

  .mobile-nav-btn svg {
    width: 18px;
    height: 18px;
  }

  .mobile-brand {
    min-width: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 0 10px;
    cursor: pointer;
  }

  .mobile-brand-mark {
    font-size: 20px;
  }

  .mobile-brand-text {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: -0.02em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .mobile-drawer-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.34);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.22s ease;
  }

  .mobile-drawer-backdrop.is-open {
    opacity: 1;
    pointer-events: auto;
  }

  .mobile-drawer {
    display: flex;
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 2700;
  }

  .mobile-drawer.is-open {
    pointer-events: auto;
  }

  .mobile-drawer-panel {
    width: min(188px, calc(100vw - 160px));
    height: 100%;
    padding: 16px 10px 20px;
    background:
      radial-gradient(circle at top left, rgba(233, 30, 99, 0.08), transparent 32%),
      linear-gradient(180deg, #fbfbfc 0%, #f4f4f6 100%);
    border-right: 1px solid rgba(15, 23, 42, 0.08);
    box-shadow: 0 24px 48px rgba(15, 23, 42, 0.18);
    transform: translateX(-100%);
    transition: transform 0.24s ease;
  }

  .dark .mobile-drawer-panel {
    background:
      radial-gradient(circle at top left, rgba(233, 30, 99, 0.12), transparent 36%),
      linear-gradient(180deg, #202024 0%, #18181b 100%);
    border-right-color: rgba(255, 255, 255, 0.08);
  }

  .mobile-drawer.is-open .mobile-drawer-panel {
    transform: translateX(0);
  }

  .mobile-drawer-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 18px;
  }

  .mobile-drawer-eyebrow {
    margin: 0 0 6px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-secondary);
  }

  .mobile-drawer-title {
    margin: 0;
    font-size: 24px;
    line-height: 1.1;
    letter-spacing: -0.04em;
    color: var(--text);
  }

  .mobile-drawer-menu {
    display: grid;
    gap: 6px;
  }

  .mobile-drawer-item {
    width: 100%;
    border: 1px solid transparent;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.72);
    color: var(--text);
    text-decoration: none;
    padding: 10px 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.18s ease, background-color 0.18s ease, border-color 0.18s ease;
  }

  .mobile-drawer-item:hover {
    transform: translateX(2px);
    background: rgba(255, 255, 255, 0.94);
    border-color: rgba(15, 23, 42, 0.08);
  }

  .dark .mobile-drawer-item {
    background: rgba(255, 255, 255, 0.04);
  }

  .dark .mobile-drawer-item:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.08);
  }

  .mobile-drawer-item.is-active {
    background: #111111;
    color: #ffffff;
    box-shadow: 0 14px 30px rgba(15, 23, 42, 0.16);
  }

  .dark .mobile-drawer-item.is-active {
    background: #ffffff;
    color: #111111;
  }

  .mobile-drawer-icon {
    width: 18px;
    height: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }

  .mobile-drawer-icon svg {
    width: 18px;
    height: 18px;
  }

  .mobile-drawer-label {
    min-width: 0;
  }

  .mobile-drawer-badge {
    margin-left: auto;
    min-width: 24px;
    height: 20px;
    padding: 0 6px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(15, 23, 42, 0.08);
    color: var(--text-secondary);
    font-size: 11px;
    line-height: 1;
  }

  .mobile-drawer-item.is-active .mobile-drawer-badge {
    background: rgba(255, 255, 255, 0.18);
    color: inherit;
  }

  .dark .mobile-drawer-badge {
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.76);
  }

  .dark .mobile-drawer-item.is-active .mobile-drawer-badge {
    background: rgba(17, 17, 17, 0.1);
    color: #111111;
  }

  .page {
    padding: 16px 16px 132px;
    min-height: auto;
  }

  .main-content {
    max-width: none;
    margin: 0 0 28px;
  }

  .header {
    margin-bottom: 24px;
  }

  .logo-container {
    gap: 6px;
    margin-bottom: 10px;
  }

  .brand {
    font-size: clamp(34px, 10vw, 42px);
  }

  .tagline {
    font-size: 15px;
  }

  .mode-selection {
    width: 100%;
    max-width: none;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin: 12px 0 20px;
  }

  .mode-btn {
    width: 100%;
    min-width: 0;
    height: 38px;
    padding: 8px 12px;
  }

  .main-input-area {
    padding: 16px;
    border-radius: 18px;
    margin-bottom: 16px;
  }

  .input-container {
    gap: 14px;
  }

  .main-textarea {
    min-height: 180px;
    font-size: 15px;
    line-height: 1.65;
  }

  .bottom-controls-container {
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
    padding-top: 16px;
  }

  .left-controls,
  .right-controls {
    width: 100%;
    margin: 0;
  }

  .composer-toolbar {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
    gap: 10px;
    border-radius: 0;
  }

  .control-group {
    min-width: 0;
  }

  .composer-toolbar .control-btn,
  .control-btn {
    width: 100%;
    min-height: 44px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--bg);
    justify-content: center;
    padding: 0 12px;
  }

  .right-controls {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .right-controls > * {
    min-width: 0;
  }

  .icon-btn,
  .create-btn {
    width: 100%;
    min-height: 46px;
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .composer-primary-btn {
    grid-column: 1 / -1;
  }

  .icon-btn {
    border: 1px solid var(--border);
    background: #f5f5f6;
  }

  .dark .icon-btn {
    background: var(--bg-secondary);
  }

  #history-library {
    margin-top: 34px;
  }

  .library-header {
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
    margin-bottom: 20px;
  }

  .library-title-group {
    width: 100%;
    justify-content: space-between;
  }

  .library-header h2 {
    font-size: 24px;
  }

  #history-library > .library-header .history-controls {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .history-filters {
    width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    padding-bottom: 4px;
    scrollbar-width: none;
  }

  .history-filters::-webkit-scrollbar {
    display: none;
  }

  .history-filters > * {
    flex: 0 0 auto;
  }

  .chip,
  .chip-select {
    min-height: 40px;
  }

  .play-all-btn {
    width: 100%;
    min-height: 44px;
  }

  .history-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .history-card {
    padding: 12px;
  }

  .history-content {
    margin-bottom: 12px;
  }

  #history-library .history-card .history-footer {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 10px;
    padding-top: 10px;
  }

  #history-library .history-card .history-metadata {
    min-width: 0;
    gap: 12px;
    flex-wrap: nowrap;
    white-space: nowrap;
  }

  #history-library .history-card .metadata-item {
    min-width: 0;
  }

  #history-library .history-card .history-controls {
    width: auto;
    flex-direction: row;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
  }

  #history-library .history-card .card-action-btn {
    width: 32px;
    height: 32px;
    border-radius: 999px;
    background: #f4f4f6;
  }

  .dark #history-library .history-card .card-action-btn {
    background: rgba(255, 255, 255, 0.08);
  }

  .voice-dropdown {
    position: fixed !important;
    top: calc(72px + env(safe-area-inset-top, 0px)) !important;
    left: 12px !important;
    right: 12px !important;
    bottom: auto !important;
    width: auto !important;
    min-width: 0 !important;
    max-width: none !important;
    max-height: calc(100dvh - 88px - env(safe-area-inset-top, 0px));
    margin: 0 !important;
    transform: none !important;
    border-radius: 18px;
    z-index: 3200;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    overscroll-behavior: contain;
    box-shadow: 0 24px 56px rgba(15, 23, 42, 0.22);
  }

  .voice-dropdown.hidden {
    transform: translateY(12px) !important;
  }

  .voice-dropdown .voice-selection-status,
  .voice-dropdown .voice-actions {
    flex-shrink: 0;
  }

  .voice-dropdown .voice-list {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    padding: 0 10px 10px;
  }

  .voice-dropdown .voice-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .voice-dropdown .voice-item {
    min-height: 48px;
    padding: 10px 12px;
  }

  .voice-dropdown .voice-group-header {
    padding-top: 10px;
  }

  .voice-dropdown .voice-actions {
    padding: 10px 12px calc(10px + env(safe-area-inset-bottom, 0px));
  }

  #global-player {
    left: 12px;
    right: 12px;
    bottom: calc(12px + env(safe-area-inset-bottom, 0px));
    transform: none;
    width: auto;
    max-width: none;
    padding: 12px 14px calc(12px + env(safe-area-inset-bottom, 0px));
    border-radius: 20px;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    grid-template-areas:
      "thumb info actions"
      "controls controls controls";
    gap: 12px 10px;
    align-items: start;
  }

  #global-player.hidden {
    transform: translateY(calc(100% + 40px));
  }

  #gp-thumbnail {
    grid-area: thumb;
    width: 48px;
    height: 48px;
  }

  #gp-info-container {
    grid-area: info;
    padding-top: 1px;
  }

  #gp-title {
    font-size: 14px;
    line-height: 1.3;
  }

  .gp-progress-wrapper {
    margin-top: 6px;
    gap: 8px;
  }

  .player-time,
  .current-time,
  .total-time {
    font-size: 11px;
  }

  .player-main-controls {
    grid-area: controls;
    width: 100%;
    justify-content: space-between;
    gap: 16px;
    padding-top: 4px;
  }

  .player-right-controls {
    grid-area: actions;
    justify-content: flex-end;
    gap: 0;
  }

  .player-right-controls .volume-control-wrapper {
    display: none;
  }

  .player-btn {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
  }

  .play-pause-btn {
    width: 40px;
    height: 40px;
  }

  .more-options-menu {
    left: auto;
    right: 0;
    bottom: calc(100% + 10px);
    width: min(240px, calc(100vw - 32px));
    transform: none;
  }

  #global-player .playlist-panel {
    position: fixed;
    left: 12px;
    right: 12px;
    bottom: calc(124px + env(safe-area-inset-bottom, 0px));
    min-width: 0;
    width: auto;
    max-height: 46vh;
    border-radius: 16px;
  }
}

@media (max-width: 480px) {
  .mobile-topbar {
    padding: 10px 12px 12px;
    gap: 10px;
  }

  .mobile-brand {
    gap: 8px;
    padding: 0 6px;
  }

  .mobile-brand-text {
    font-size: 15px;
  }

  .mobile-drawer-panel {
    width: min(176px, calc(100vw - 132px));
    padding: 14px 8px 18px;
  }

  .page {
    padding: 14px 12px 124px;
  }

  .main-input-area {
    padding: 14px;
  }

  .main-textarea {
    min-height: 160px;
  }

  .library-header h2 {
    font-size: 22px;
  }

  .history-grid {
    grid-template-columns: 1fr;
  }

  .voice-dropdown {
    top: calc(66px + env(safe-area-inset-top, 0px)) !important;
    left: 10px !important;
    right: 10px !important;
    border-radius: 16px;
    max-height: calc(100dvh - 78px - env(safe-area-inset-top, 0px));
  }

  .voice-dropdown .voice-selection-status {
    padding: 10px;
  }

  .voice-dropdown .voice-list {
    padding: 0 8px 8px;
  }

  #global-player {
    left: 10px;
    right: 10px;
    bottom: calc(10px + env(safe-area-inset-bottom, 0px));
    padding: 10px 12px calc(10px + env(safe-area-inset-bottom, 0px));
    gap: 10px 8px;
  }

  #gp-thumbnail {
    width: 44px;
    height: 44px;
  }

  .player-main-controls {
    gap: 12px;
  }

  #global-player .playlist-panel {
    left: 10px;
    right: 10px;
    bottom: calc(118px + env(safe-area-inset-bottom, 0px));
  }
}

.voice-dropdown.single .voice-selection-status { 
  display: none; 
}

.voice-dropdown.role .voice-slot {
  border-radius: 999px;
  padding: 10px 14px;
  min-width: 96px;
  box-shadow: var(--shadow-light, 0 2px 8px rgba(0,0,0,.08));
}

.voice-dropdown.role .voice-slot.selected {
  border-color: var(--accent);
  background: rgba(233, 30, 99, 0.08);
}

.voice-slot-label { 
  opacity: .85; 
  letter-spacing: .6px; 
}

.voice-slot-name { 
  font-weight: 600; 
}

.voice-swap-btn {
  width: 36px;
  height: 36px;
  border-radius: 999px;
  box-shadow: var(--shadow-light, 0 2px 8px rgba(0,0,0,.08));
}

.voice-item:hover {
  border-color: var(--accent);
}