/* ========== 译桥 H5 - 深色主题全局样式 ========== */
:root {
  --bg: #0a0a0a;
  --bg-card: #1a1a1a;
  --bg-input: #111111;
  --bg-hover: #222222;
  --border: #2a2a2a;
  --border-light: #333333;
  --primary: #00bcd4;
  --primary-dim: rgba(0, 188, 212, 0.12);
  --danger: #ff4444;
  --warning: #ffab00;
  --text: #ffffff;
  --text-sec: #999999;
  --text-dim: #666666;
  --text-muted: #555555;
  --bg-elev: #222222;
  --success: #00B42A;
  --radius: 6px;
  --nav-h: 60px;
  --header-h: 50px;
}

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

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; }
a.btn { color: inherit; }
a.btn-primary { color: #000; }
a.btn-outline { color: var(--primary); }
a.btn-danger { color: #fff; }
a.btn-gray { color: var(--text-sec); }

/* ========== 顶部导航 ========== */
.app-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  background: #111111;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  z-index: 100;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
}

.header-brand .brand-icon {
  width: 28px;
  height: 28px;
  background: var(--primary);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #000;
  font-size: 16px;
  font-weight: 900;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-sec);
}

.header-user {
  display: flex;
  align-items: center;
  gap: 6px;
}

.header-user .username {
  color: var(--text);
  font-weight: 500;
}

.member-badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 3px;
  background: var(--primary-dim);
  color: var(--primary);
}

.member-badge.expired {
  background: rgba(255, 68, 68, 0.12);
  color: var(--danger);
}

.header-logout {
  color: var(--text-dim);
  cursor: pointer;
  font-size: 12px;
}

.header-logout:hover { color: var(--danger); }

/* ========== 主内容区 ========== */
.app-main {
  padding-top: calc(var(--header-h) + 12px);
  padding-bottom: calc(var(--nav-h) + 20px);
  padding-left: 16px;
  padding-right: 16px;
  max-width: 750px;
  margin: 0 auto;
}

/* ========== 底部导航栏 ========== */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  background: #111111;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-around;
  z-index: 100;
  padding-bottom: env(safe-area-inset-bottom, 0);
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  cursor: pointer;
  padding: 6px 12px;
  color: var(--text-dim);
  transition: color 0.2s;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}

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

.nav-icon {
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-icon svg {
  width: 20px;
  height: 20px;
}

.nav-label {
  font-size: 11px;
  font-weight: 500;
}

/* ========== 方形卡片 ========== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
}

.card-desc {
  font-size: 13px;
  color: var(--text-sec);
  margin-bottom: 12px;
  line-height: 1.5;
}

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

/* ========== 功能入口网格 ========== */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  cursor: pointer;
  transition: border-color 0.2s;
  text-decoration: none;
  color: inherit;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  gap: 10px 12px;
  align-items: center;
}

.feature-card:hover {
  border-color: var(--primary);
}

.feature-card .feat-icon {
  width: 40px;
  height: 40px;
  background: var(--primary-dim);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  grid-column: 1;
  grid-row: 1;
}

.feature-card .feat-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  grid-column: 2;
  grid-row: 1;
  margin: 0;
}

.feature-card .feat-desc {
  font-size: 12px;
  color: var(--text-sec);
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  grid-column: 1 / 3;
  grid-row: 2;
  line-height: 1.5;
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 24px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: opacity 0.2s;
  gap: 6px;
}

.btn:active { opacity: 0.8; }

.btn-primary {
  background: var(--primary);
  color: #000;
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}

.btn-gray {
  background: var(--bg-hover);
  color: var(--text-sec);
}

.btn-block {
  width: 100%;
}

.btn-sm {
  height: 32px;
  padding: 0 14px;
  font-size: 13px;
}

.btn-lg {
  height: 52px;
  font-size: 16px;
  font-weight: 600;
}

/* ========== 输入框 ========== */
.input {
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 10px 14px;
  color: var(--text);
  font-size: 14px;
  width: 100%;
  outline: none;
  transition: border-color 0.2s;
}

.input:focus { border-color: var(--primary); }

.input::placeholder { color: var(--text-dim); }

.textarea {
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 12px 14px;
  color: var(--text);
  font-size: 14px;
  width: 100%;
  min-height: 120px;
  resize: vertical;
  outline: none;
  font-family: inherit;
  line-height: 1.5;
}

.textarea:focus { border-color: var(--primary); }
.textarea::placeholder { color: var(--text-dim); }

/* ========== 选择器/下拉 ========== */
.select-box {
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 10px 14px;
  color: var(--text);
  font-size: 14px;
  width: 100%;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  outline: none;
}

/* ========== 标签 ========== */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  background: var(--primary-dim);
  color: var(--primary);
  font-size: 11px;
  border-radius: 3px;
  margin-right: 8px;
  margin-bottom: 8px;
}

/* ========== 状态 ========== */
.status {
  font-size: 12px;
  color: var(--text-dim);
  padding: 2px 10px;
  border-radius: 3px;
  background: var(--bg-hover);
}

.status.active {
  color: var(--primary);
  background: var(--primary-dim);
}

/* ========== 语言选择行 ========== */
.lang-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.lang-box {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 10px 14px;
  cursor: pointer;
}

.lang-box .label {
  font-size: 11px;
  color: var(--text-dim);
  margin-bottom: 2px;
}

.lang-box .lang-name {
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
}

.swap-btn {
  width: 36px;
  height: 36px;
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 16px;
  color: var(--primary);
  flex-shrink: 0;
}

/* ========== 选项行 ========== */
.option-title {
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 8px;
  margin-top: 12px;
}

.field-title {
  font-size: 13px;
  color: var(--text-sec);
  margin-bottom: 8px;
}

/* ========== 滑块（全局统一：彩色轨道 + 圆形滑块） ========== */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--border);
  outline: none;
  accent-color: var(--primary);
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  background: var(--primary);
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid #fff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.35);
}

input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  background: var(--primary);
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid #fff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.35);
}

.slider-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.slider-row input[type="range"] {
  flex: 1;
}

.slider-value {
  font-size: 14px;
  color: var(--primary);
  font-weight: 600;
  min-width: 32px;
  text-align: center;
}

/* ========== 控制行 ========== */
.control-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
}

/* ========== 开关行 ========== */
.switch-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
}

.switch-row .setting-title {
  font-size: 14px;
  color: var(--text);
}

.panel-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
}

/* ========== sqiaoai.top 同款：单容器「翻译历史记录」卡片 ========== */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-hover);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 14px;
}
.status-pill.running {
  color: var(--primary);
  background: var(--primary-dim);
}
.status-pill.running .status-dot {
  background: var(--primary);
  animation: sq-pulse-dot 1.2s infinite;
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-dim);
  display: inline-block;
}
@keyframes sq-pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0,188,212,0.45); }
  50% { box-shadow: 0 0 0 8px rgba(0,188,212,0); }
}

.result-box {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  /* 固定高度容器：空状态用 min-height，有内容后固定 max-height，超出滚动 */
  min-height: 120px;
  max-height: 320px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
/* 翻译历史容器内的空提示：缩小内边距让空状态更矮（弹幕区 empty-hint 不受影响） */
.result-box .empty-hint {
  padding: 22px 12px;
}
.result-box::-webkit-scrollbar { width: 6px; }
.result-box::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* 实时字幕临时块（resultBox 顶部第一个 children，停止时删除） */
.result-box .live-subtitle {
  background: rgba(0, 188, 212, 0.06);
  border: 1px solid rgba(0, 188, 212, 0.25);
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 12px;
}
.result-box .ls-row {
  margin-bottom: 8px;
}
.result-box .ls-row:last-child { margin-bottom: 0; }
.result-box .ls-label {
  font-size: 11px;
  color: var(--text-dim);
  margin-bottom: 3px;
}
.result-box .ls-source {
  font-size: 14px;
  color: var(--text-sec);
  line-height: 1.55;
  word-break: break-word;
}
.result-box .ls-target {
  font-size: 14px;
  color: var(--primary);
  line-height: 1.55;
  word-break: break-word;
}

.empty-hint {
  text-align: center;
  color: var(--text-dim);
  font-size: 13px;
  padding: 44px 12px;
  line-height: 1.8;
}

/* sqiaoai.top 同款 form 工具类（两个页都要用来对齐结构） */
.form-label {
  display: block;
  font-size: 13px;
  color: var(--text-sec);
  margin-bottom: 6px;
}
.form-select, .form-input {
  width: 100%;
  height: 40px;
  background: var(--bg-input);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0 12px;
  font-size: 14px;
  outline: none;
  transition: border-color .15s;
}
.form-select:focus, .form-input:focus { border-color: var(--primary); }
.form-group { margin-bottom: 16px; }
.form-help {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.5;
  margin-top: 6px;
}

/* ========== 空状态 ========== */
.empty {
  text-align: center;
  color: var(--text-dim);
  font-size: 13px;
  padding: 40px 0;
}

/* ========== 分割线 ========== */
.divider {
  height: 1px;
  background: var(--border);
  margin: 16px 0;
}

/* ========== 价格 ========== */
.price {
  color: var(--primary);
  font-weight: 700;
  font-size: 20px;
}

.price-unit {
  font-size: 12px;
  color: var(--text-sec);
  font-weight: 400;
}

/* ========== 历史记录 ========== */
/* 固定高度滚动容器：避免翻译历史无限拉长页面。
   新条目会插入顶部（unshift），渲染后自动滚到 0 以便用户立刻看到最新。 */
.history-list-scroll {
  max-height: 360px;
  overflow-y: auto;
  padding-right: 4px;
  border-radius: 8px;
  /* 滚动条样式（Webkit） */
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.history-list-scroll::-webkit-scrollbar { width: 6px; }
.history-list-scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

.history-item {
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

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

.history-meta {
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 4px;
}

.history-source {
  font-size: 13px;
  color: var(--text-sec);
  margin-bottom: 2px;
}

.history-target {
  font-size: 13px;
  color: var(--primary);
}

/* 拟真页也用同高度的历史容器（类名 st-history-list-scroll，与拟真页历史卡片对齐） */
.st-history-list-scroll {
  max-height: 360px;
  overflow-y: auto;
  padding-right: 4px;
  border-radius: 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.st-history-list-scroll::-webkit-scrollbar { width: 6px; }
.st-history-list-scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* TikTok 直播弹幕 & 快捷回复：同样固定高度滚动，防止撑长页面 */
.live-chat-scroll {
  min-height: 300px;
  max-height: 420px;
  overflow-y: auto;
  padding-right: 4px;
  border-radius: 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.live-chat-scroll::-webkit-scrollbar { width: 6px; }
.live-chat-scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ========== 设置项 ========== */
.setting-item {
  margin-bottom: 16px;
}

.setting-item label {
  display: block;
  font-size: 13px;
  color: var(--text-sec);
  margin-bottom: 6px;
}

/* ========== 套餐卡片 ========== */
.package-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.package-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  cursor: pointer;
  transition: border-color 0.2s;
  text-align: center;
}

.package-card.selected {
  border-color: var(--primary);
  background: rgba(0, 188, 212, 0.05);
}

.package-card .pkg-duration {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.package-card .pkg-price {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
}

.package-card .pkg-unit {
  font-size: 12px;
  color: var(--text-sec);
}

/* ========== 订单卡片 ========== */
.order-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 12px;
}

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

.order-no {
  font-size: 13px;
  color: var(--text-sec);
  font-family: monospace;
}

.order-status {
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 3px;
}

.order-status.pending { background: rgba(255, 171, 0, 0.12); color: var(--warning); }
.order-status.paid { background: var(--primary-dim); color: var(--primary); }
.order-status.expired { background: rgba(255, 68, 68, 0.12); color: var(--danger); }

.order-info {
  font-size: 13px;
  color: var(--text-sec);
  line-height: 1.8;
}

/* ========== 下载卡片 ========== */
.download-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.download-info .dl-platform {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.download-info .dl-version {
  font-size: 12px;
  color: var(--text-sec);
}

/* ========== 登录页 ========== */
.login-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}

.login-box {
  width: 100%;
  max-width: 360px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
}

.login-brand {
  text-align: center;
  margin-bottom: 32px;
}

.login-brand .brand-name {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}

.login-brand .brand-sub {
  font-size: 13px;
  color: var(--text-sec);
}

.login-box .input {
  margin-bottom: 16px;
  height: 44px;
}

.login-box .btn { margin-top: 8px; }

/* ===== 登录页 Tab 切换（深色主题配套完善） ===== */
.login-tabs {
  display: flex;
  gap: 6px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  padding: 4px;
  border-radius: 10px;
  margin-bottom: 20px;
}
.login-tab {
  flex: 1;
  background: transparent;
  color: var(--text-sec);
  border: none;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  transition: all .2s;
}
.login-tab:hover { color: var(--text); }
.login-tab.active {
  background: var(--primary);
  color: #fff;
  font-weight: 500;
  box-shadow: 0 2px 8px rgba(22,93,255,.25);
}
.login-panel { display: none; }
.login-panel.active { display: block; }

.pass-row {
  position: relative;
  margin-bottom: 16px;
}
.pass-row .input {
  margin-bottom: 0;
  padding-right: 68px;
}
.pass-toggle {
  position: absolute;
  right: 6px;
  top: 6px;
  height: 32px;
  padding: 0 12px;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--text-sec);
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
}
.pass-toggle:hover { color: var(--primary); border-color: var(--primary); }

.err-box {
  color: var(--danger, #F53F3F);
  font-size: 13px;
  margin: 2px 0 8px;
  min-height: 18px;
  line-height: 18px;
}
.success-box {
  color: var(--success, #00B42A);
  font-size: 13px;
  text-align: center;
  margin: 10px 0 4px;
  min-height: 18px;
}

.code-row {
  display: flex;
  gap: 10px;
  align-items: stretch;
}
.code-row .input {
  margin-bottom: 0;
  flex: 1;
}
.btn-code {
  min-width: 116px;
  padding: 0 14px;
  height: 44px;
  background: var(--bg-elev);
  color: var(--primary);
  border: 1px solid var(--primary);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
}
.btn-code:active { background: var(--bg-hover); }
.btn-code:disabled {
  background: var(--bg-elev);
  color: var(--text-sec);
  border-color: var(--border);
  cursor: not-allowed;
}

.panel-foot {
  text-align: center;
  margin-top: 14px;
  font-size: 13px;
  color: var(--text-sec);
}
.panel-foot .link {
  color: var(--primary);
  cursor: pointer;
  text-decoration: none;
  margin-left: 4px;
}
.panel-foot .link:hover { text-decoration: underline; }

.activate-tip {
  background: var(--bg-elev);
  border: 1px dashed var(--border);
  color: var(--text-sec);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 12px;
  line-height: 1.6;
  margin-bottom: 14px;
}

/* ========== 欢迎区 ========== */
.welcome-section {
  margin-bottom: 20px;
}

.welcome-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}

.welcome-sub {
  font-size: 13px;
  color: var(--text-sec);
}

/* ========== 会员状态卡片 ========== */
.member-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.member-info .mi-label {
  font-size: 12px;
  color: var(--text-sec);
  margin-bottom: 2px;
}

.member-info .mi-value {
  font-size: 15px;
  font-weight: 600;
}

.member-info .mi-value.active { color: var(--primary); }
.member-info .mi-value.expired { color: var(--danger); }

/* ========== 字幕显示区 ========== */
.subtitle-box {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 10px;
}

.subtitle-label {
  font-size: 11px;
  color: var(--text-dim);
  margin-bottom: 4px;
}

.subtitle-text {
  font-size: 14px;
  color: var(--text);
  line-height: 1.6;
  min-height: 20px;
}

.subtitle-text.target { color: var(--primary); }

/* ========== 录音按钮 ========== */
.record-btn {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--primary);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: #000;
  margin: 20px auto;
  transition: transform 0.2s;
}

.record-btn:active { transform: scale(0.95); }
.record-btn.recording { background: var(--danger); animation: pulse 1.5s infinite; }

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 68, 68, 0.4); }
  50% { box-shadow: 0 0 0 12px rgba(255, 68, 68, 0); }
}

/* ========== 快捷回复 ========== */
.quick-reply-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.quick-reply-btn {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px 14px;
  color: var(--text);
  font-size: 13px;
  cursor: pointer;
}

.quick-reply-btn:hover { border-color: var(--primary); }

/* ========== 加载动画 ========== */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ========== Toast提示 ========== */
.toast {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0, 0, 0, 0.85);
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-size: 14px;
  z-index: 9999;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s;
}

.toast.show { opacity: 1; }

/* ========== 拟声同传页面专用样式（仅新增差异，基础类复用全局 .card/.input/.btn/.control-row 等） ========== */
/* 平台 chip：禁用态半透明（其余直接使用 .btn-primary / .btn-gray 的样式） */
.st-platform-chip.is-disabled,
.st-platform-chip[disabled] {
  opacity: 0.55 !important;
  cursor: not-allowed;
}

/* 快捷回复按钮：让「文本左对齐 + × 号右对齐」覆盖 .btn 默认的 justify-content:center */
.st-qr-btn {
  justify-content: space-between !important;
  text-align: left;
  padding-left: 14px;
  padding-right: 10px;
  min-height: 44px;
}
.st-qr-btn:hover {
  background: var(--bg-hover);
}
/* × 删除按钮：悬停变红 */
.st-qr-del:hover {
  color: var(--danger, #f56c6c);
}
/* ========== 模态框 ========== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  width: 100%;
  max-width: 400px;
}

.modal-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
}

.modal-actions {
  display: flex;
  gap: 10px;
  margin-top: 20px;
  justify-content: flex-end;
}

/* ========== 侧边栏（PC端 ≥900px 显示） ========== */
.sidebar {
  display: none; /* 默认隐藏，手机端不显示 */
}

@media (min-width: 900px) {
  :root {
    --sidebar-w: 248px;
  }

  /* 背景渐变（匹配原站暗色风格） */
  html, body {
    background: radial-gradient(900px 520px at 12% 0%, rgba(0, 188, 212, 0.06), transparent 55%),
                linear-gradient(180deg, #121212, #161616);
  }

  /* 顶部导航：sticky替代fixed */
  .app-header {
    position: sticky;
    left: auto;
    right: auto;
  }

  /* 侧边栏显示 */
  .sidebar {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--header-h);
    left: 0;
    bottom: 0;
    width: var(--sidebar-w);
    background: rgba(18, 18, 18, 0.96);
    border-right: 1px solid var(--border);
    padding-top: 16px;
    padding-bottom: env(safe-area-inset-bottom, 0);
    overflow-y: auto;
    z-index: 99;
  }

  .sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 0 12px;
  }

  .sidebar-nav .nav-item {
    flex-direction: row;
    justify-content: flex-start;
    padding: 10px 16px;
    width: 100%;
    gap: 12px;
    border-radius: var(--radius);
  }

  .sidebar-nav .nav-item.active {
    background: var(--primary-dim);
  }

  .sidebar-nav .nav-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
  }

  .sidebar-nav .nav-icon svg {
    width: 18px;
    height: 18px;
  }

  .sidebar-nav .nav-label {
    font-size: 13px;
  }

  /* "更多功能"分组标签 */
  .nav-section-label {
    font-size: 11px;
    color: var(--text-dim);
    padding: 16px 28px 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
  }

  /* 底部导航隐藏 */
  .bottom-nav {
    display: none;
  }

  /* 主内容区：留出侧边栏空间 */
  .app-main {
    margin-left: var(--sidebar-w);
    max-width: 1280px;
    padding: 20px 24px;
    padding-top: 20px;
    padding-bottom: 40px;
  }

  /* 登录页居中适配 */
  .login-box {
    max-width: 400px;
  }

  /* 功能卡片网格 */
  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .package-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* 模态框适配 */
  .modal-box {
    max-width: 480px;
  }
}

/* ========== 超宽屏（>1200px）进一步优化 ========== */
@media (min-width: 1200px) {
  .feature-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}