:root {
  --bg: #07090e;
  --bg-rgb: 7, 9, 14;
  --card: rgba(20, 24, 38, 0.6);
  --card-hover: rgba(28, 34, 54, 0.85);
  --card-2: rgba(30, 36, 53, 0.4);
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.15);
  --text: #f1f3f9;
  --muted: #8c93a3;
  --accent: #ff3b5c;
  --accent-rgb: 255, 59, 92;
  --accent-2: #ff763b;
  --accent-gradient: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  --accent-glow: rgba(255, 59, 92, 0.25);
  --ok: #10b981;
  --ok-border: rgba(16, 185, 129, 0.3);
  --ok-bg: rgba(16, 185, 129, 0.1);
  --warn: #f59e0b;
  --warn-border: rgba(245, 158, 11, 0.3);
  --warn-bg: rgba(245, 158, 11, 0.1);
  --err: #f43f5e;
  --err-border: rgba(244, 63, 94, 0.3);
  --err-bg: rgba(244, 63, 94, 0.1);
  --shadow: 0 16px 36px rgba(0, 0, 0, 0.4);
  --glass: rgba(13, 16, 26, 0.85);
}

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

.icon {
  width: 1.25em;
  height: 1.25em;
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
}

.alert-icon {
  margin-right: 8px;
  width: 1.4em;
  height: 1.4em;
  vertical-align: -0.25em;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial,
    sans-serif;
  background: var(--bg);
  background-image:
    radial-gradient(at 0% 0%, rgba(255, 59, 92, 0.07) 0px, transparent 50%),
    radial-gradient(at 100% 0%, rgba(255, 118, 59, 0.04) 0px, transparent 50%),
    radial-gradient(at 50% 100%, rgba(30, 80, 255, 0.04) 0px, transparent 50%);
  background-attachment: fixed;
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 20px 180px;
}

h1 {
  font-size: 28px;
  font-weight: 700;
  margin: 0 0 8px;
  display: flex;
  align-items: center;
  gap: 12px;
  letter-spacing: -0.5px;
}

h1 .logo {
  background: var(--accent-gradient);
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 20px;
  box-shadow: 0 8px 20px var(--accent-glow);
}

.subtitle {
  color: var(--muted);
  margin: 0 0 32px;
  font-size: 14px;
  font-weight: 400;
}

.card {
  background: var(--card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
  transition: border-color 0.3s, box-shadow 0.3s;
}

.card:hover {
  border-color: rgba(255, 255, 255, 0.12);
}

label.field {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  margin-bottom: 10px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

input[type="text"] {
  width: 100%;
  padding: 14px 16px;
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  font-size: 15px;
  font-weight: 500;
  outline: none;
  transition: border-color 0.25s, box-shadow 0.25s, background-color 0.25s;
}

input[type="text"]:focus {
  border-color: var(--accent);
  background-color: rgba(30, 36, 53, 0.6);
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.modes {
  display: flex;
  gap: 14px;
  margin: 20px 0;
  flex-wrap: wrap;
}

.mode {
  flex: 1;
  min-width: 220px;
  padding: 18px;
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 14px;
  cursor: pointer;
  transition: border-color 0.25s, background-color 0.25s, transform 0.2s, box-shadow 0.25s;
  position: relative;
}

.mode:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  background-color: rgba(30, 36, 53, 0.5);
}

.mode.selected {
  border-color: var(--accent);
  background: rgba(255, 59, 92, 0.08);
  box-shadow: 0 8px 24px rgba(255, 59, 92, 0.12);
}

.mode input {
  position: absolute;
  opacity: 0;
}

.mode .m-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}

.mode .m-desc {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.6;
}

.mode.disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

button.primary {
  width: 100%;
  padding: 15px;
  background: var(--accent-gradient);
  color: #fff;
  border: none;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 6px 20px var(--accent-glow);
  transition: transform 0.2s, filter 0.2s, box-shadow 0.2s;
}

button.primary:hover {
  filter: brightness(1.08);
  box-shadow: 0 8px 24px rgba(255, 59, 92, 0.4);
}

button.primary:active {
  transform: scale(0.985);
}

button.primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
  filter: none;
}

.progress {
  display: none;
  margin-top: 24px;
}

.progress.active {
  display: block;
}

.p-stage {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  margin-bottom: 10px;
  gap: 12px;
}

.p-stage .msg {
  color: var(--text);
  font-weight: 500;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.p-stage .pct {
  color: var(--muted);
  font-weight: 600;
}

.p-cancel {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 8px;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.p-cancel:hover {
  border-color: var(--err);
  color: var(--err);
  background: var(--err-bg);
}

.p-bar {
  height: 6px;
  background: var(--card-2);
  border-radius: 3px;
  overflow: hidden;
}

.p-fill {
  height: 100%;
  background: var(--accent-gradient);
  width: 0%;
  border-radius: 3px;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.alert {
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 13px;
  line-height: 1.6;
  display: none;
  align-items: flex-start;
}

.alert.show {
  display: flex;
}

.alert.err {
  background: var(--err-bg);
  color: var(--err);
  border: 1px solid var(--err-border);
}

.alert.warn {
  background: var(--warn-bg);
  color: var(--warn);
  border: 1px solid var(--warn-border);
}

.player-card {
  display: none;
}

.player-card.show {
  display: block;
}

.now-playing {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 8px;
}

.now-playing strong {
  color: var(--text);
}

audio {
  width: 100%;
  margin-top: 10px;
}

/* 历史列表头部与清空按钮 */
.h-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 32px 0 16px;
}

.h-header h2 {
  font-size: 13px;
  font-weight: 600;
  margin: 0;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.h-actions {
  display: flex;
  gap: 8px;
}

.h-action-btn {
  padding: 6px 14px;
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.h-action-btn:hover {
  border-color: var(--err-border);
  background-color: var(--err-bg);
  color: var(--err);
}

.h-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  background: var(--card-2);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 12px;
  cursor: pointer;
  transition: border-color 0.2s, background-color 0.2s, transform 0.15s;
}

@media (hover: hover) {
  .h-item:hover {
    border-color: var(--border-hover);
    background-color: rgba(30, 36, 53, 0.5);
    transform: translateY(-1px);
  }
}

.h-item.active {
  border-color: var(--accent);
  background: rgba(255, 59, 92, 0.05);
}

.h-info {
  flex: 1;
  min-width: 0;
}

.h-title {
  font-size: 14.5px;
  font-weight: 500;
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text);
}

.h-meta {
  font-size: 12px;
  color: var(--muted);
  margin-top: 4px;
}

.badge {
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: var(--muted);
  white-space: nowrap;
}

.h-item.active .badge {
  border-color: rgba(255, 59, 92, 0.2);
  color: var(--accent);
  background: rgba(255, 59, 92, 0.05);
}

.empty {
  color: var(--muted);
  font-size: 13.5px;
  text-align: center;
  padding: 40px 20px;
  background: var(--card-2);
  border: 1px dashed var(--border);
  border-radius: 16px;
}

.key-hint {
  font-size: 12px;
  color: var(--warn);
  margin-top: 8px;
}

/* Toggle 面板样式 */
.panel-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
}

.panel-toggle .pt-title {
  font-size: 14.5px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
}

.panel-toggle .pt-arrow {
  color: var(--muted);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  font-size: 12px;
}

.panel-toggle.open .pt-arrow {
  transform: rotate(180deg);
}

.panel-body {
  display: none;
  margin-top: 20px;
  padding-top: 4px;
}

.panel-body.open {
  display: block;
}

.ck-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
  letter-spacing: 0.3px;
}

.ck-status.on {
  background: var(--ok-bg);
  color: var(--ok);
  border: 1px solid var(--ok-border);
}

.ck-status.off {
  background: var(--card-2);
  color: var(--muted);
  border: 1px solid var(--border);
}

.ck-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 8px currentColor;
}

textarea {
  width: 100%;
  min-height: 140px;
  resize: vertical;
  padding: 14px;
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  line-height: 1.6;
  outline: none;
  transition: border-color 0.25s, box-shadow 0.25s;
}

textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.ck-actions {
  display: flex;
  gap: 12px;
  margin-top: 14px;
  flex-wrap: wrap;
}

button.secondary {
  padding: 10px 18px;
  background: var(--card-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.2s, background-color 0.2s, color 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

button.secondary:hover {
  border-color: var(--border-hover);
  background-color: rgba(255, 255, 255, 0.05);
}

button.danger {
  color: var(--err);
}

button.danger:hover {
  border-color: var(--err-border);
  background-color: var(--err-bg);
  color: var(--err);
}

.ck-msg {
  font-size: 12px;
  margin-top: 10px;
  min-height: 16px;
  font-weight: 500;
}

.ck-msg.ok {
  color: var(--ok);
}

.ck-msg.err {
  color: var(--err);
}

.guide {
  margin-top: 20px;
  padding: 16px 18px;
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--muted);
}

.guide summary {
  cursor: pointer;
  color: var(--text);
  font-weight: 600;
  font-size: 13.5px;
  outline: none;
}

.guide ol {
  margin: 12px 0 0;
  padding-left: 20px;
}

.guide ol li {
  margin-bottom: 8px;
}

.guide code {
  background: rgba(0,0,0,0.3);
  padding: 2px 6px;
  border-radius: 6px;
  color: var(--accent-2);
  font-size: 11.5px;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.guide a {
  color: var(--accent-2);
  text-decoration: none;
  font-weight: 500;
}

.guide a:hover {
  text-decoration: underline;
}

/* 音色选择 */
.voice-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 14px;
}

@media (max-width: 560px) {
  .voice-grid {
    grid-template-columns: 1fr;
  }
}

.voice-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  transition: border-color 0.2s, background-color 0.2s, box-shadow 0.2s;
  font-size: 13px;
}

.voice-item:hover {
  border-color: var(--border-hover);
  background-color: rgba(30, 36, 53, 0.5);
}

.voice-item.selected {
  border-color: var(--accent);
  background: rgba(255, 59, 92, 0.05);
}

.voice-item .v-radio {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--border);
  flex-shrink: 0;
  transition: all 0.2s;
}

.voice-item.selected .v-radio {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: inset 0 0 0 3px var(--bg);
}

.voice-item .v-label {
  flex: 1;
  min-width: 0;
}

.voice-item .v-name {
  font-weight: 600;
  color: var(--text);
}

.voice-item .v-gender {
  font-size: 11px;
  color: var(--muted);
  margin-left: 4px;
}

.voice-preview {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
  cursor: pointer;
  color: var(--muted);
  transition: all 0.2s;
}

.voice-preview:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(255, 59, 92, 0.05);
}

.voice-preview.playing {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(255, 59, 92, 0.05);
  animation: pulse 1.5s infinite;
}

/* PWA 底部导航栏 */
.nav-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 64px;
  z-index: 110;
  background: rgba(9, 11, 17, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-around;
  align-items: center;
}

.nav-item {
  background: none;
  border: none;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  padding: 8px 12px;
  font-size: 11px;
  font-weight: 600;
  transition: color 0.25s, transform 0.15s;
  width: 50%;
  height: 100%;
  font-family: inherit;
}

.nav-item:active {
  transform: scale(0.95);
}

.nav-item.active {
  color: var(--accent);
}

.nav-item .nav-icon {
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 固定底栏浮动播放器 */
.player-bar {
  position: fixed;
  bottom: 78px; /* 悬浮于 64px 导航栏之上，并留出 14px 间隙 */
  left: 16px;
  right: 16px;
  max-width: 728px;
  margin: 0 auto;
  z-index: 100;
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
  transform: translateY(calc(100% + 100px));
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

.player-bar.show {
  transform: translateY(0);
}

.player-inner {
  padding: 12px 16px 14px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.pb-info {
  flex: 1;
  min-width: 0;
}

.pb-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pb-meta {
  font-size: 11px;
  color: var(--muted);
  margin-top: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

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

.pb-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: var(--text);
  display: grid;
  place-items: center;
  cursor: pointer;
  font-size: 15px;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.pb-btn:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(255, 59, 92, 0.05);
}

.pb-btn.play {
  background: var(--accent-gradient);
  border: none;
  width: 48px;
  height: 48px;
  font-size: 18px;
  color: #fff;
  box-shadow: 0 4px 14px var(--accent-glow);
}

.pb-btn.play:hover {
  filter: brightness(1.08);
  box-shadow: 0 6px 18px rgba(255, 59, 92, 0.4);
}

.pb-btn.loop.active {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(255, 59, 92, 0.05);
}

.pb-btn.timer.active {
  color: var(--warn);
  border-color: var(--warn);
  background: var(--warn-bg);
}

.pb-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.pb-progress {
  padding: 10px 16px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  font-weight: 500;
  color: var(--muted);
}

.pb-seek {
  flex: 1;
  height: 4px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 2px;
  cursor: pointer;
  position: relative;
  overflow: visible;
  transition: height 0.2s;
}

.pb-seek:hover, .pb-seek.dragging {
  height: 6px;
}

.pb-seek-buffer {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 2px;
  width: 0%;
}

.pb-seek-fill {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  background: var(--accent-gradient);
  border-radius: 2px;
  width: 0%;
}

.pb-seek-thumb {
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 2px 6px rgba(0,0,0,0.4);
  top: 50%;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity 0.2s, transform 0.1s;
  left: 0%;
  pointer-events: none;
}

.pb-seek:hover .pb-seek-thumb, .pb-seek.dragging .pb-seek-thumb {
  opacity: 1;
}

.pb-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.pb-actions a {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: all 0.2s;
}

.pb-actions a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(255, 59, 92, 0.05);
}

/* 播放列表项内嵌进度 */
.h-progress {
  height: 3px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 2px;
  margin-top: 8px;
  overflow: hidden;
}

.h-progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  transition: width 0.3s;
}

.h-item.active .h-progress-fill {
  background: var(--accent-2);
}

/* 移动端底栏适配 */
@media (max-width: 560px) {
  .wrap {
    padding: 20px 12px 220px;
  }

  /* 播放列表项:在窄屏腾出标题空间 */
  .h-item {
    gap: 8px;
    padding: 12px 12px;
    border-radius: 12px;
  }
  .h-item .h-play-icon {
    display: none;
  }
  .h-item.active .h-play-icon {
    display: flex;
  }
  .h-title {
    font-size: 14px;
  }
  .h-meta {
    font-size: 11.5px;
  }
  .h-item .badge {
    font-size: 10px;
    padding: 3px 7px;
    margin-right: 0 !important;
  }
  .h-item .h-delete-btn {
    padding: 4px;
    opacity: 0.6;
  }
  .h-header {
    margin: 20px 0 12px;
  }
  /* 播放器:标题与下载在第一行,控件单独一行居中,
     防止按钮挤占标题空间。 */
  .player-bar {
    left: 8px;
    right: 8px;
    bottom: 70px;
    border-radius: 16px;
  }
  .player-inner {
    padding: 10px 12px 12px;
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "info actions"
      "controls controls";
    gap: 8px 10px;
    align-items: center;
  }
  .pb-info {
    grid-area: info;
    min-width: 0;
  }
  .pb-actions {
    grid-area: actions;
  }
  .pb-controls {
    grid-area: controls;
    justify-content: center;
    gap: 6px;
  }
  .pb-title {
    font-size: 13px;
  }
  .pb-meta {
    font-size: 10.5px;
  }
  .pb-btn {
    width: 36px;
    height: 36px;
    font-size: 13px;
  }
  .pb-btn.play {
    width: 42px;
    height: 42px;
    font-size: 15px;
  }
  .pb-actions a {
    width: 36px;
    height: 36px;
  }
  .pb-progress {
    padding: 8px 12px 0;
    font-size: 10.5px;
  }
}

/* Toast 通知 */
#toast {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(-120%);
  z-index: 200;
  max-width: 90vw;
  padding: 12px 20px;
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 16px;
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease;
  opacity: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

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

#toast.err {
  border-color: var(--err-border);
  color: var(--err);
  background: rgba(244, 63, 94, 0.9);
  color: #fff;
}

#toast.ok {
  border-color: var(--ok-border);
  color: var(--ok);
  background: rgba(16, 185, 129, 0.95);
  color: #fff;
}

#toast.warn {
  border-color: var(--warn-border);
  color: var(--warn);
  background: rgba(245, 158, 11, 0.95);
  color: #fff;
}

/* 历史列表删除按钮 */
.h-item .h-delete-btn {
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 14px;
  cursor: pointer;
  padding: 6px;
  border-radius: 8px;
  transition: all 0.2s;
  opacity: 0.3;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (hover: hover) {
  .h-item:hover .h-delete-btn {
    opacity: 0.8;
  }
}

.h-item .h-delete-btn:hover {
  color: var(--err);
  background: var(--err-bg);
  opacity: 1;
}

.h-item .h-play-icon {
  color: var(--accent);
  font-size: 16px;
  display: flex;
  align-items: center;
}

/* 弹层 */
#transcript-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

#transcript-overlay.show {
  display: flex;
  animation: fadeIn 0.25s ease-out;
}

#transcript-box {
  max-width: 640px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  background: rgba(20, 24, 37, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
  position: relative;
  box-shadow: 0 20px 50px rgba(0,0,0,0.6);
  transform: scale(0.95);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

#transcript-overlay.show #transcript-box {
  transform: scale(1);
}

#transcript-box h3 {
  margin: 0 0 20px;
  font-size: 18px;
  font-weight: 700;
}

#transcript-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--muted);
  cursor: pointer;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.2s;
}

#transcript-close:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(255, 59, 92, 0.05);
}

#transcript-text {
  font-size: 14.5px;
  line-height: 2;
  color: var(--text);
  white-space: pre-wrap;
  padding: 10px 0;
}

/* 视图切换与动画 */
.tab-content {
  animation: tabSlideIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes tabSlideIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* 脉冲动画 */
.pulse {
  animation: pulseAnimation 2s infinite ease-in-out;
}

@keyframes pulseAnimation {
  0% { opacity: 0.6; }
  50% { opacity: 1; }
  100% { opacity: 0.6; }
}

/* Sticky App Header */
.app-header {
  position: sticky;
  top: 0;
  z-index: 95;
  background: rgba(7, 9, 14, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand .logo {
  background: transparent;
  border: 1.5px solid var(--accent);
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  color: var(--accent);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.brand:hover .logo {
  transform: scale(1.06) rotate(6deg);
  background: rgba(255, 59, 92, 0.06);
  border-color: var(--accent-2);
  color: var(--accent-2);
  box-shadow: 0 4px 12px var(--accent-glow);
}
.brand .logo svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
  transition: transform 0.3s ease;
}
.brand:hover .logo svg {
  transform: scale(1.1);
}
.brand-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.app-name {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.3px;
  color: var(--text);
}
.app-desc {
  font-size: 11px;
  font-weight: 500;
  color: var(--muted);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  color: var(--ok);
  background: var(--ok-bg);
  border: 1px solid var(--ok-border);
  padding: 4px 10px;
  border-radius: 20px;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.05);
}
.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 6px currentColor;
  animation: statusPulse 2s infinite ease-in-out;
}
@keyframes statusPulse {
  0% { opacity: 0.6; }
  50% { opacity: 1; }
  100% { opacity: 0.6; }
}
.install-header-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  color: var(--ok);
  background: var(--ok-bg);
  border: 1px solid var(--ok-border);
  padding: 4px 10px;
  border-radius: 20px;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.05);
  transition: all 0.25s ease;
}
.install-header-btn:hover {
  background: rgba(16, 185, 129, 0.2);
  border-color: rgba(16, 185, 129, 0.5);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.15);
}
.install-header-btn:active {
  transform: translateY(0);
}