/* ============================================================
   DualStar · 邮件 app
   ============================================================ */

.mail-view {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
}

.mail-shell {
  position: relative;
  width: var(--phone-w);
  height: var(--phone-h);
  max-height: 100vh;
  background: var(--bg);
  border-radius: var(--phone-radius);
  box-shadow:
    0 0 0 12px var(--bg-elevated),
    0 0 0 13px var(--border-strong),
    var(--shadow-xl);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

@media (max-width: 768px) {
  .mail-shell {
    width: 100vw;
    height: 100vh;
    height: 100lvh;
    border-radius: 0;
    box-shadow: none;
  }
}

/* —— 全屏模式 —— */
/* 基础样式已由 base.css 统一处理（窗口化） */

/* 平板/桌面端全屏模式：内容居中优化 */
@media (min-width: 769px) {
  [data-display-mode="fullscreen"] .mail-list,
  [data-display-mode="fullscreen"] .mail-detail-content {
    max-width: 720px;
    margin: 0 auto;
  }
}

/* —— 顶部导航 —— */
.mail-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px 10px;
  background: var(--bg-glass);
  border-bottom: 1px solid var(--border);
  padding-top: calc(14px + var(--safe-area-top, env(safe-area-inset-top, 0px)));
  flex-shrink: 0;
}

.mail-nav-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.5px;
}

.mail-nav-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--r-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  cursor: pointer;
}
.mail-nav-btn:hover { background: var(--surface); }

/* 右侧操作按钮组（设置 + 写信） */
.mail-nav-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* 邮件设置页 body（可滚动） */
.mail-settings-body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 12px 16px 32px;
}

.mail-subtitle {
  font-size: 12px;
  color: var(--text-secondary);
  padding: 10px 20px 4px;
  letter-spacing: 0.5px;
  flex-shrink: 0;
}

/* —— 收件箱列表 —— */
.mail-list {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 8px 16px 16px;
  -webkit-overflow-scrolling: touch;
}

.mail-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 14px;
  background: var(--bg-elevated);
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  margin-bottom: 8px;
  cursor: pointer;
  transition: background-color var(--dur-fast), color var(--dur-fast), border-color var(--dur-fast), opacity var(--dur-fast), transform var(--dur-fast) var(--ease-out);
  position: relative;
}
.mail-item:hover {
  background: var(--bg-soft);
  transform: translateY(-1px);
}
.mail-item.unread {
  background: var(--accent-soft);
  border-color: var(--accent);
}
.mail-item.unread .mail-item-from,
.mail-item.unread .mail-item-subject {
  color: var(--text);
  font-weight: 600;
}

.mail-item-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--r-full);
  background: var(--surface);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 500;
  flex-shrink: 0;
  overflow: hidden;
}
.mail-item-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mail-item-body {
  flex: 1;
  min-width: 0;
}

.mail-item-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 2px;
}

.mail-item-from {
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

.mail-item-time {
  font-size: 11px;
  color: var(--text-tertiary);
  flex-shrink: 0;
}

.mail-item-subject {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mail-item-preview {
  font-size: 12px;
  color: var(--text-tertiary);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.mail-item-dot {
  position: absolute;
  top: 50%;
  right: 14px;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

/* —— 空状态 —— */
.mail-empty {
  text-align: center;
  padding: 64px 24px;
  color: var(--text-tertiary);
}
.mail-empty-icon {
  margin: 0 auto 16px;
}
.mail-empty p {
  font-size: 14px;
  margin: 0 0 4px;
}
.mail-empty .micro {
  font-size: 12px;
  opacity: 0.7;
}

/* —— 阅读邮件 —— */
.mail-read-body {
  flex: 1;
  overflow-y: auto;
  padding: 24px 20px 32px;
}

.mail-read-subject {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.35;
  letter-spacing: 0.3px;
  margin-bottom: 20px;
}

.mail-read-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 20px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.mail-read-avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--r-full);
  background: var(--surface);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 500;
  overflow: hidden;
  flex-shrink: 0;
}
.mail-read-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mail-read-meta-info { flex: 1; }
.mail-read-from {
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
  margin-bottom: 2px;
}
.mail-read-time {
  font-size: 12px;
  color: var(--text-tertiary);
}

.mail-read-content {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text);
  letter-spacing: 0.3px;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: var(--font-body);
}

/* —— 写信 —— */
.mail-compose-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px 16px 32px;
}

.mail-recipient-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.mail-recipient-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 6px;
  background: var(--bg-elevated);
  border: 1.5px solid var(--border);
  border-radius: var(--r-md);
  cursor: pointer;
  transition: background-color var(--dur-fast), color var(--dur-fast), border-color var(--dur-fast), opacity var(--dur-fast), transform var(--dur-fast) var(--ease-out);
}
.mail-recipient-item:hover {
  border-color: var(--border-strong);
}
.mail-recipient-item.selected {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.mail-recipient-avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--r-full);
  background: var(--surface);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 6px;
  overflow: hidden;
}
.mail-recipient-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mail-recipient-name {
  font-size: 12px;
  color: var(--text);
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}

/* ============================================================
   Tabs（收信 / 已发送）
   ============================================================ */
.mail-tabs {
  display: flex;
  background: var(--bg-glass);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.mail-tab {
  flex: 1;
  text-align: center;
  padding: 12px 0 10px;
  font-size: 14px;
  color: var(--text-secondary);
  cursor: pointer;
  position: relative;
  transition: color var(--dur-fast);
}

.mail-tab.active {
  color: var(--accent-deep, var(--text));
  font-weight: 600;
}

.mail-tab.active::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 24px;
  height: 3px;
  border-radius: 2px;
  background: var(--accent);
}

.mail-tab-count {
  display: inline-block;
  margin-left: 4px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 9px;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  line-height: 18px;
  font-weight: 500;
}

.mail-tab:not(.active) .mail-tab-count {
  background: var(--surface);
  color: var(--text-tertiary);
}

/* ============================================================
   信封图标（列表项左侧）
   ============================================================ */
.mail-envelope {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  transition: transform var(--dur-fast) var(--ease-out);
}

.mail-item:hover .mail-envelope {
  transform: translateY(-1px) rotate(-2deg);
}

.mail-envelope-sealed {
  background: linear-gradient(135deg, #f5e6c8, #e8d4a0);
  color: #8a6d3b;
  box-shadow: 0 2px 6px rgba(138, 109, 59, 0.2);
}

.mail-envelope-opened {
  background: linear-gradient(135deg, #e8e8e8, #d0d0d0);
  color: #6b6b6b;
}

.mail-envelope-sent {
  background: linear-gradient(135deg, #c4d6f5, #94a8d4);
  color: #42588a;
  box-shadow: 0 2px 6px rgba(66, 88, 138, 0.2);
}

.mail-envelope-reply {
  background: linear-gradient(135deg, #d6c4f5, #a894d4);
  color: #58428a;
  box-shadow: 0 2px 6px rgba(88, 66, 138, 0.2);
}

/* 封口蜡印 */
.mail-envelope-wax {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #c9302c, #8b1a17);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3), inset 0 -1px 2px rgba(0, 0, 0, 0.4);
  z-index: 1;
}

.mail-envelope-sealed svg {
  opacity: 0.5;
}

/* ============================================================
   主题标签
   ============================================================ */
.mail-tag {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 500;
  margin-right: 4px;
  vertical-align: middle;
}

.mail-tag-sent {
  background: rgba(66, 88, 138, 0.15);
  color: #42588a;
}

.mail-tag-reply {
  background: rgba(88, 66, 138, 0.15);
  color: #58428a;
}

/* ============================================================
   阅读邮件 · 信纸样式
   ============================================================ */
.mail-read-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px 16px 32px;
  -webkit-overflow-scrolling: touch;
}

.mail-letter {
  margin: 0 auto 20px;
  max-width: 560px;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08), 0 1px 3px rgba(0, 0, 0, 0.04);
  position: relative;
  transition: transform var(--dur-fast) var(--ease-out);
}

.mail-letter-paper {
  background: #faf6ed;
  color: #3a2f1f;
  padding: 28px 24px 24px;
  position: relative;
  font-family: var(--font-body);
  background-image:
    linear-gradient(rgba(58, 47, 31, 0.04) 1px, transparent 1px);
  background-size: 100% 28px;
  background-position: 0 24px;
}

/* 收信：米黄色信纸 */
.mail-letter-received .mail-letter-paper {
  background-color: #faf6ed;
}

/* 发信：浅蓝色信纸 */
.mail-letter-sent .mail-letter-paper {
  background-color: #edf2fa;
  color: #1f2a3a;
}

/* 回信：浅紫色信纸 */
.mail-letter-reply .mail-letter-paper {
  background-color: #f3edfa;
  color: #2a1f3a;
}

/* 装饰条 */
.mail-letter-decoration {
  height: 6px;
  background: linear-gradient(90deg, transparent, currentColor, transparent);
  opacity: 0.3;
  margin: 0 -24px;
}

.mail-letter-decoration-top {
  margin-top: -28px;
  margin-bottom: 20px;
}

.mail-letter-decoration-bottom {
  margin-top: 20px;
  margin-bottom: -24px;
}

.mail-letter-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.mail-letter-subject {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: 0.5px;
  flex: 1;
}

.mail-letter-type-badge {
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 10px;
  font-weight: 500;
  white-space: nowrap;
  flex-shrink: 0;
}

.badge-received {
  background: rgba(138, 109, 59, 0.18);
  color: #8a6d3b;
}

.badge-sent {
  background: rgba(66, 88, 138, 0.18);
  color: #42588a;
}

.badge-reply {
  background: rgba(88, 66, 138, 0.18);
  color: #58428a;
}

.mail-letter-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 16px;
  margin-bottom: 16px;
  border-bottom: 1px dashed rgba(58, 47, 31, 0.2);
}

.mail-letter-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.6);
  color: currentColor;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  overflow: hidden;
  flex-shrink: 0;
  border: 1px solid rgba(58, 47, 31, 0.15);
}

.mail-letter-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mail-letter-meta-info {
  flex: 1;
  min-width: 0;
}

.mail-letter-from {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 2px;
}

.mail-letter-to {
  font-size: 12px;
  opacity: 0.75;
  margin-bottom: 2px;
}

.mail-letter-time {
  font-size: 11px;
  opacity: 0.6;
}

.mail-letter-salutation {
  font-size: 15px;
  margin-bottom: 12px;
  font-weight: 500;
}

.mail-letter-content {
  font-size: 15px;
  line-height: 2;
  letter-spacing: 0.3px;
  white-space: pre-wrap;
  word-break: break-word;
  margin-bottom: 20px;
}

.mail-letter-signature {
  font-size: 14px;
  text-align: right;
  opacity: 0.85;
  font-style: italic;
}

/* ============================================================
   原信引用（回信页面顶部）
   ============================================================ */
.mail-original-quote {
  background: var(--bg-elevated);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  padding: 12px 14px;
  margin: 0 auto 16px;
  max-width: 560px;
  font-size: 12px;
  color: var(--text-secondary);
}

.mail-original-quote-label {
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text);
}

.mail-original-quote-subject {
  font-weight: 500;
  margin-bottom: 4px;
}

.mail-original-quote-preview {
  opacity: 0.8;
  line-height: 1.5;
}

/* ============================================================
   后续回信列表
   ============================================================ */
.mail-replies-section {
  margin: 20px auto 0;
  max-width: 560px;
}

.mail-replies-title {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 10px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.mail-reply-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  background: var(--bg-elevated);
  border-radius: 8px;
  border: 1px solid var(--border);
  margin-bottom: 8px;
  cursor: pointer;
  transition: background-color var(--dur-fast), transform var(--dur-fast) var(--ease-out);
}

.mail-reply-item:hover {
  background: var(--bg-soft);
  transform: translateX(2px);
}

.mail-reply-arrow {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 600;
  flex-shrink: 0;
  border-radius: 50%;
}

.reply-sent .mail-reply-arrow {
  color: #42588a;
  background: rgba(66, 88, 138, 0.12);
}

.reply-received .mail-reply-arrow {
  color: #8a6d3b;
  background: rgba(138, 109, 59, 0.12);
}

.mail-reply-body {
  flex: 1;
  min-width: 0;
}

.mail-reply-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 2px;
}

.mail-reply-from {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

.mail-reply-time {
  font-size: 11px;
  color: var(--text-tertiary);
}

.mail-reply-subject {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mail-reply-preview {
  font-size: 11px;
  color: var(--text-tertiary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ============================================================
   阅读页底部按钮
   ============================================================ */
.mail-read-actions {
  margin: 24px auto 0;
  max-width: 560px;
}

/* ============================================================
   写信样式增强
   ============================================================ */
.mail-compose-textarea {
  font-family: var(--font-body);
  line-height: 1.8;
  resize: vertical;
  min-height: 200px;
}

.mail-compose-word-count {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-top: 6px;
  text-align: right;
}

.mail-compose-hint {
  margin-left: 8px;
  opacity: 0.7;
}

.mail-compose-quote {
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  padding: 10px 12px;
  margin-bottom: 16px;
  font-size: 12px;
  color: var(--text-secondary);
}

.mail-compose-quote-label {
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text);
}

.mail-compose-quote-subject {
  opacity: 0.85;
}

/* ============================================================
   列表项类型样式
   ============================================================ */
.mail-item.type-sent {
  border-left: 3px solid #94a8d4;
}

.mail-item.type-reply {
  border-left: 3px solid #a894d4;
}

.mail-item.type-received {
  border-left: 3px solid transparent;
}

.mail-item.type-received.unread {
  border-left-color: #e8d4a0;
}

/* ============================================================
   设置 · 开关样式（settings-toggle）
   ============================================================ */
.settings-toggle {
  width: 44px;
  height: 26px;
  border-radius: 13px;
  background: var(--surface);
  border: 1px solid var(--border);
  position: relative;
  cursor: pointer;
  transition: background-color var(--dur-fast), border-color var(--dur-fast);
  flex-shrink: 0;
}

.settings-toggle.on {
  background: var(--accent);
  border-color: var(--accent);
}

.settings-toggle-knob {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  transition: transform var(--dur-fast) var(--ease-out);
}

.settings-toggle.on .settings-toggle-knob {
  transform: translateX(18px);
}

/* ============================================================
   频率选择按钮组
   ============================================================ */
.freq-pills .btn {
  font-size: 12px;
  padding: 6px 8px;
}

/* ============================================================
   收件人选择页（搜索 + 多选）
   ============================================================ */
.mail-select-body {
  flex: 1;
  overflow-y: auto;
  padding: 12px 16px 32px;
}

.mail-search-wrap {
  position: relative;
  margin-bottom: 12px;
}

.mail-search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-tertiary);
  pointer-events: none;
}

.mail-search-input {
  width: 100%;
  padding: 10px 12px 10px 36px;
  font-size: 14px;
}

.mail-select-summary {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-bottom: 10px;
  padding: 0 2px;
}

.mail-select-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mail-select-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  background: var(--bg-elevated);
  border: 1.5px solid transparent;
  border-radius: var(--r-md);
  cursor: pointer;
  transition: background-color var(--dur-fast), border-color var(--dur-fast);
}
.mail-select-item:hover {
  background: var(--surface);
}
.mail-select-item.selected {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.mail-select-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--r-full);
  background: var(--surface);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 500;
  flex-shrink: 0;
  overflow: hidden;
}
.mail-select-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mail-select-info {
  flex: 1;
  min-width: 0;
}
.mail-select-name {
  font-size: 14px;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.mail-select-sub {
  font-size: 11px;
  color: var(--text-tertiary);
  margin-top: 2px;
}

.mail-select-check {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: transparent;
  flex-shrink: 0;
  transition: background-color var(--dur-fast), border-color var(--dur-fast), color var(--dur-fast);
}
.mail-select-item.selected .mail-select-check {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ============================================================
   写信页 - 收件人 chip
   ============================================================ */
.mail-recipients-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  padding: 8px 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  min-height: 44px;
}

.mail-recipient-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px 4px 10px;
  background: var(--accent-soft);
  color: var(--accent-deep);
  border-radius: 12px;
  font-size: 13px;
}

.mail-recipient-chip-remove {
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  opacity: 0.6;
  padding: 0 2px;
  transition: opacity var(--dur-fast);
}
.mail-recipient-chip-remove:hover {
  opacity: 1;
}

.mail-recipient-chip-add {
  color: var(--accent-deep);
  font-size: 13px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 12px;
  transition: background-color var(--dur-fast);
}
.mail-recipient-chip-add:hover {
  background: var(--accent-soft);
}

.mail-recipients-empty {
  color: var(--text-tertiary);
  font-size: 13px;
}

/* ============================================================
   已发送信件详情 - 请求回信按钮
   ============================================================ */
.mail-read-actions-row {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 8px;
}

.mail-replied-hint {
  font-size: 12px;
  color: var(--text-tertiary);
  text-align: right;
  padding: 6px 0;
}

.mail-loading-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  margin-right: 6px;
  vertical-align: middle;
  animation: mailLoadingPulse 1s ease-in-out infinite;
}
@keyframes mailLoadingPulse {
  0%, 100% { opacity: 0.3; transform: scale(0.85); }
  50%      { opacity: 1; transform: scale(1); }
}