/* ============================================================
   SMS / 通讯 stage — Claude Design「Tiffany」独立观感
   全部颜色走 --comms-* token（design-tokens/themes/metro.json → shared.comms，
   主题无关、light/dark 一致，设计上与主 App 暖纸/墨绿解耦）。
   作用域：.sms-root（嵌在 .stage-pane[data-stage-pane="sms"] 内）。
   ============================================================ */

.sms-root {
  --sms-sans: var(--comms-font-sans);
  --sms-serif: var(--comms-font-serif);
  position: relative;
  flex: 1;
  /* Claude design 是 402px iOS 手机框——桌面端限宽居中成手机列，两侧留背景沟。
     .sms-root 既是限宽列又是 .sms-chat / sheet / menu / toast 的定位上下文。 */
  width: 100%;
  max-width: 460px;
  align-self: center;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
  background: var(--comms-bg);
  color: var(--comms-ink);
  font-family: var(--sms-sans);
  border-inline: 1px solid var(--comms-line);
  box-shadow: var(--comms-shadow-soft);
}
.sms-root *,
.sms-root *::before,
.sms-root *::after {
  box-sizing: border-box;
}
.sms-root button {
  font-family: inherit;
}

/* ─── 顶栏 ─────────────────────────────────────────────── */
.sms-header {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  min-height: 50px;
  padding: 10px 18px 6px;
  background: var(--comms-bg);
}
.sms-header-titles {
  flex: 1;
  min-width: 0;
}
.sms-header-sub {
  font-size: var(--comms-fs-sm);
  color: var(--comms-ink-mute);
  letter-spacing: 3px;
  margin-bottom: 2px;
}
.sms-header-title {
  font-family: var(--sms-serif);
  font-size: var(--comms-fs-heading);
  font-weight: var(--comms-weight-semibold);
  color: var(--comms-ink);
  letter-spacing: 1.5px;
  line-height: 1.2;
}
.sms-header-action {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  border-radius: var(--comms-radius-circle);
  background: var(--comms-surface);
  border: 1px solid var(--comms-line);
  color: var(--comms-tiffany-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--comms-shadow-soft);
}
.sms-header-action .material-symbols-outlined {
  font-size: 20px;
}
.sms-header-action.is-hidden {
  display: none;
}

/* ─── Pill subtabs ─────────────────────────────────────── */
.sms-pill {
  flex-shrink: 0;
  padding: 6px 14px 10px;
  background: var(--comms-bg);
}
.sms-pill-track {
  display: flex;
  padding: 3px;
  background: var(--comms-bg-deep);
  border-radius: var(--comms-radius-sm);
  box-shadow: inset 0 1px 2px var(--comms-line-mid);
}
.sms-pill-tab {
  flex: 1;
  padding: 7px 0;
  border: none;
  border-radius: var(--comms-radius-xs);
  background: transparent;
  color: var(--comms-ink-soft);
  font-size: var(--comms-fs-body-sm);
  font-weight: var(--comms-weight-medium);
  letter-spacing: 0.5px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: background var(--comms-transition), color var(--comms-transition);
}
.sms-pill-tab.is-active {
  background: var(--comms-surface);
  color: var(--comms-ink);
  font-weight: var(--comms-weight-semibold);
  box-shadow: var(--comms-shadow-card);
}
.sms-pill-badge {
  min-width: 15px;
  height: 14px;
  padding: 0 5px;
  border-radius: var(--comms-radius-pill);
  background: var(--comms-tiffany-soft);
  color: var(--comms-tiffany-deep);
  font-size: var(--comms-fs-2xs);
  font-weight: var(--comms-weight-bold);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.sms-pill-tab.is-active .sms-pill-badge {
  background: var(--comms-tiffany-deep);
  color: var(--comms-on-accent);
}
.sms-pill-dot {
  width: 5px;
  height: 5px;
  border-radius: var(--comms-radius-circle);
  background: var(--comms-tiffany-deep);
}

/* ─── 视图容器 ─────────────────────────────────────────── */
.sms-views {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}
.sms-view {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  background: var(--comms-bg);
  animation: smsTabFadeIn 0.22s ease-out;
}
.sms-view.is-hidden {
  display: none;
}
@keyframes smsTabFadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── 过滤芯片（全部 / 临时 / 预定义） ─────────────────── */
.sms-filterchips {
  flex-shrink: 0;
  display: flex;
  padding: 0 14px;
  background: var(--comms-bg);
  border-bottom: 1px solid var(--comms-line);
}
.sms-filterchip {
  position: relative;
  padding: 6px 14px 8px;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: var(--comms-fs-body-sm);
  font-weight: var(--comms-weight-medium);
  color: var(--comms-ink-mute);
  white-space: nowrap;
  letter-spacing: 0.3px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.sms-filterchip.is-active {
  font-weight: var(--comms-weight-semibold);
  color: var(--comms-ink);
}
.sms-filterchip-n {
  font-size: var(--comms-fs-xs);
  font-weight: var(--comms-weight-bold);
  color: var(--comms-ink-mute);
}
.sms-filterchip.is-active .sms-filterchip-n {
  color: var(--comms-tiffany-deep);
}
.sms-filterchip-underline {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: -1px;
  height: 2px;
  border-radius: 2px;
  background: var(--comms-tiffany-deep);
}

/* ─── 头像 ─────────────────────────────────────────────── */
.sms-avatar {
  --av-a: var(--comms-av-rose-a);
  --av-b: var(--comms-av-rose-b);
  flex-shrink: 0;
  border-radius: var(--comms-radius-circle);
  background: linear-gradient(135deg, var(--av-a) 0%, var(--av-b) 100%);
  color: var(--comms-on-accent);
  font-family: var(--sms-serif);
  font-weight: var(--comms-weight-semibold);
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--comms-shadow-soft);
  overflow: hidden;
}
.sms-avatar--hue-rose  { --av-a: var(--comms-av-rose-a);  --av-b: var(--comms-av-rose-b); }
.sms-avatar--hue-peach { --av-a: var(--comms-av-peach-a); --av-b: var(--comms-av-peach-b); }
.sms-avatar--hue-milk  { --av-a: var(--comms-av-milk-a);  --av-b: var(--comms-av-milk-b); }
.sms-avatar--hue-lilac { --av-a: var(--comms-av-lilac-a); --av-b: var(--comms-av-lilac-b); }
.sms-avatar--hue-sage  { --av-a: var(--comms-av-sage-a);  --av-b: var(--comms-av-sage-b); }
.sms-avatar--hue-sky   { --av-a: var(--comms-av-sky-a);   --av-b: var(--comms-av-sky-b); }
.sms-avatar--hue-mint  { --av-a: var(--comms-av-mint-a);  --av-b: var(--comms-av-mint-b); }
.sms-avatar--hue-sea   { --av-a: var(--comms-av-sea-a);   --av-b: var(--comms-av-sea-b); }
.sms-avatar--hue-navy  { --av-a: var(--comms-av-navy-a);  --av-b: var(--comms-av-navy-b); }
.sms-avatar--dynamic {
  background: repeating-linear-gradient(45deg, var(--comms-ink) 0 4px, var(--comms-ink-soft) 4px 8px);
  color: var(--comms-rose);
}
.sms-avatar--ring {
  box-shadow: 0 0 0 2px var(--comms-surface), 0 0 0 3.5px var(--comms-tiffany);
}

/* ─── 会话列表 ─────────────────────────────────────────── */
.sms-scroll {
  flex: 1;
  overflow-y: auto;
  background: var(--comms-bg);
}
.sms-conv-row {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 11px 14px;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--comms-line);
  text-align: left;
  cursor: pointer;
}
.sms-conv-row.is-unread {
  background: var(--comms-unread-tint);
}
.sms-conv-row.is-unread::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--comms-tiffany);
}
.sms-conv-avatarwrap {
  position: relative;
  flex-shrink: 0;
}
.sms-conv-avatarwrap .sms-avatar {
  width: 50px;
  height: 50px;
  font-size: 21px;
}
.sms-online-dot {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 13px;
  height: 13px;
  border-radius: var(--comms-radius-circle);
  background: var(--comms-online);
  border: 2.5px solid var(--comms-bg);
}
.sms-conv-main {
  flex: 1;
  min-width: 0;
}
.sms-conv-line1 {
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.sms-conv-name {
  font-family: var(--sms-serif);
  font-size: var(--comms-fs-subtitle);
  font-weight: var(--comms-weight-semibold);
  color: var(--comms-ink);
  letter-spacing: 0.3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 60%;
}
.sms-conv-tagchip {
  flex-shrink: 0;
  font-size: var(--comms-fs-sm);
  color: var(--comms-ink-mute);
  padding: 1px 6px;
  border-radius: var(--comms-radius-2xs);
  background: var(--comms-bg-deep);
  letter-spacing: 0.5px;
}
.sms-conv-spacer { flex: 1; }
.sms-conv-time {
  flex-shrink: 0;
  font-size: var(--comms-fs-sm);
  color: var(--comms-ink-mute);
  letter-spacing: 0.3px;
}
.sms-conv-row.is-unread .sms-conv-time {
  color: var(--comms-tiffany);
  font-weight: var(--comms-weight-semibold);
}
.sms-conv-line2 {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 3px;
}
.sms-conv-preview {
  flex: 1;
  min-width: 0;
  font-size: var(--comms-fs-body-sm);
  line-height: 1.5;
  color: var(--comms-ink-soft);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.sms-conv-row.is-unread .sms-conv-preview {
  color: var(--comms-ink);
  font-weight: var(--comms-weight-medium);
}
.sms-conv-preview-you {
  color: var(--comms-ink-mute);
}
.sms-conv-unread {
  flex-shrink: 0;
  min-width: 19px;
  height: 19px;
  margin-top: 2px;
  padding: 0 6px;
  border-radius: var(--comms-radius-pill);
  background: var(--comms-tiffany);
  color: var(--comms-on-accent);
  font-size: var(--comms-fs-sm);
  font-weight: var(--comms-weight-bold);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--comms-shadow-bubble-me);
}
.sms-conv-del {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border: none;
  border-radius: var(--comms-radius-circle);
  background: transparent;
  color: var(--comms-ink-ghost);
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
}
.sms-conv-row:hover .sms-conv-del {
  display: inline-flex;
}
.sms-conv-del:hover {
  color: var(--comms-danger);
  background: var(--comms-bg-deep);
}
.sms-conv-del .material-symbols-outlined { font-size: 18px; }

/* 分组标题 / 空态 */
.sms-group-head {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 14px 16px 6px;
  font-size: var(--comms-fs-sm);
  font-weight: var(--comms-weight-semibold);
  letter-spacing: 1.5px;
  color: var(--comms-ink-mute);
}
.sms-group-head .material-symbols-outlined { font-size: 15px; }
.sms-empty {
  padding: 60px 24px;
  text-align: center;
  font-size: var(--comms-fs-body);
  line-height: 1.7;
  color: var(--comms-ink-mute);
}
.sms-empty-icon {
  font-size: 44px;
  color: var(--comms-ink-ghost);
  margin-bottom: 10px;
}
.sms-empty small {
  display: block;
  margin-top: 6px;
  font-size: var(--comms-fs-body-sm);
  color: var(--comms-ink-ghost);
}

/* ─── 联系人页（头像墙列表） ───────────────────────────── */
.sms-contacts-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 6px 12px 14px;
  background: var(--comms-bg);
}
.sms-contacts-count {
  padding: 10px 4px;
  font-size: var(--comms-fs-sm);
  font-weight: var(--comms-weight-semibold);
  letter-spacing: 1.5px;
  color: var(--comms-ink-mute);
}
.sms-contact-card {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  margin-bottom: 8px;
  padding: 12px 14px;
  background: var(--comms-surface);
  border: 1px solid var(--comms-line);
  border-radius: var(--comms-radius-md);
  text-align: left;
  cursor: pointer;
  transition: border-color var(--comms-transition), background var(--comms-transition);
}
.sms-contact-card:hover {
  border-color: var(--comms-tiffany);
  background: var(--comms-card);
}
.sms-contact-card .sms-avatar {
  width: 44px;
  height: 44px;
  font-size: 18px;
}
.sms-contact-meta {
  flex: 1;
  min-width: 0;
}
.sms-contact-name {
  font-family: var(--sms-serif);
  font-size: var(--comms-fs-body-lg);
  font-weight: var(--comms-weight-semibold);
  color: var(--comms-ink);
  letter-spacing: 0.3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sms-contact-tag {
  margin-top: 2px;
  font-size: var(--comms-fs-caption);
  color: var(--comms-ink-mute);
  letter-spacing: 0.3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sms-contact-chevron {
  flex-shrink: 0;
  color: var(--comms-ink-ghost);
}

/* ─── 空间页（制作中占位） ─────────────────────────────── */
.sms-space-soon {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 40px 28px;
  text-align: center;
}
.sms-space-soon-art {
  position: relative;
  width: 88px;
  height: 88px;
  border-radius: var(--comms-radius-circle);
  background: var(--comms-tiffany-soft);
  color: var(--comms-tiffany-deep);
  display: flex;
  align-items: center;
  justify-content: center;
}
.sms-space-soon-art .material-symbols-outlined { font-size: 42px; }
.sms-space-soon-badge {
  position: absolute;
  right: -2px;
  bottom: -2px;
  width: 30px;
  height: 30px;
  border-radius: var(--comms-radius-circle);
  background: var(--comms-surface);
  color: var(--comms-tiffany-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--comms-shadow-soft);
}
.sms-space-soon-badge .material-symbols-outlined { font-size: 17px; }
.sms-space-soon-title {
  font-family: var(--sms-serif);
  font-size: var(--comms-fs-title);
  font-weight: var(--comms-weight-semibold);
  color: var(--comms-ink);
  letter-spacing: 1px;
}
.sms-space-soon-body {
  font-size: var(--comms-fs-body);
  line-height: 1.7;
  color: var(--comms-ink-mute);
}

/* ─── 聊天视图 ─────────────────────────────────────────── */
.sms-chat {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--comms-bg);
  overflow: hidden;
}
.sms-chat.is-hidden { display: none; }

.sms-chat-header {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  padding: 8px 12px 10px;
  background: var(--comms-bg);
  border-bottom: 1px solid var(--comms-line);
}
.sms-chat-back,
.sms-chat-more {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  border: none;
  border-radius: var(--comms-radius-circle);
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.sms-chat-back { color: var(--comms-tiffany-deep); }
.sms-chat-more { color: var(--comms-ink-soft); }
.sms-chat-avatarbtn {
  position: relative;
  flex-shrink: 0;
  padding: 0;
  background: transparent;
  border: none;
  cursor: pointer;
}
.sms-chat-avatarbtn .sms-avatar {
  width: 38px;
  height: 38px;
  font-size: 16px;
}
.sms-chat-avatarbtn .sms-online-dot {
  width: 10px;
  height: 10px;
  right: -1px;
  bottom: -1px;
  border-width: 2px;
}
.sms-chat-idbtn {
  flex: 1;
  min-width: 0;
  padding: 0;
  background: transparent;
  border: none;
  text-align: left;
  cursor: pointer;
}
.sms-chat-name {
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: var(--sms-serif);
  font-size: var(--comms-fs-subtitle);
  font-weight: var(--comms-weight-semibold);
  color: var(--comms-ink);
  letter-spacing: 0.3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sms-chat-status {
  margin-top: 1px;
  font-size: var(--comms-fs-sm);
  color: var(--comms-ink-mute);
  letter-spacing: 0.5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sms-chat-status.is-online { color: var(--comms-online); }
.sms-chat-status-meta { color: var(--comms-ink-mute); }

/* 滚动消息区（独立滚动容器，非主聊天 .chat-messages-area） */
.sms-chat-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 8px 14px 12px;
  background: var(--comms-bg);
  background-image:
    radial-gradient(circle at 20% 8%, color-mix(in srgb, var(--comms-tiffany-soft) 40%, transparent) 0%, transparent 38%),
    radial-gradient(circle at 86% 92%, color-mix(in srgb, var(--comms-lilac-soft) 33%, transparent) 0%, transparent 45%);
}

/* 气泡 */
.sms-msg { padding: 1px 0; }
.sms-msg--date {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0 8px;
}
.sms-msg--date::before,
.sms-msg--date::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--comms-line);
}
.sms-msg--date span {
  font-size: var(--comms-fs-sm);
  color: var(--comms-ink-mute);
  letter-spacing: 2px;
  padding: 0 4px;
}
.sms-msg--sys {
  display: flex;
  justify-content: center;
  padding: 4px 16px 6px;
}
.sms-msg--sys span {
  max-width: 80%;
  padding: 4px 10px;
  background: var(--comms-bg-deep);
  border-radius: var(--comms-radius-pill);
  font-size: var(--comms-fs-sm);
  color: var(--comms-ink-mute);
  letter-spacing: 0.5px;
  text-align: center;
}
.sms-msg-line {
  display: flex;
  gap: 6px;
  padding: 1px 0;
  align-items: flex-end;
}
.sms-msg-line--me { justify-content: flex-end; }
.sms-msg-line--them { justify-content: flex-start; }
.sms-msg-col {
  max-width: 78%;
  width: fit-content;
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.sms-msg-line--me .sms-msg-col { align-items: flex-end; }
.sms-msg-line--them .sms-msg-col { align-items: flex-start; }
.sms-bubble {
  position: relative;
  padding: 9px 13px;
  font-size: var(--comms-fs-body-lg);
  line-height: 1.5;
  letter-spacing: 0.2px;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}
.sms-msg-line--them .sms-bubble {
  background: var(--comms-surface);
  color: var(--comms-ink);
  border: 1px solid var(--comms-line);
  border-radius: 18px 18px 18px 6px;
  box-shadow: var(--comms-shadow-card);
}
.sms-msg-line--them.is-cont .sms-bubble { border-radius: 6px 18px 18px 6px; }
.sms-msg-line--me .sms-bubble {
  background: linear-gradient(135deg, var(--comms-tiffany) 0%, var(--comms-tiffany-deep) 100%);
  color: var(--comms-on-accent);
  border-radius: 18px 18px 4px 18px;
  box-shadow: var(--comms-shadow-bubble-me);
}
.sms-msg-line--me.is-cont .sms-bubble { border-radius: 18px 18px 6px 18px; }
.sms-msg-time {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 3px;
  padding: 0 4px;
  font-size: var(--comms-fs-xs);
  color: var(--comms-ink-mute);
  letter-spacing: 0.5px;
}
.sms-msg-status .material-symbols-outlined {
  font-size: 13px;
  vertical-align: middle;
}
.sms-msg-status.is-synced { color: var(--comms-tiffany-deep); }
.sms-msg-status.is-pending { color: var(--comms-ink-ghost); }
.sms-msg-author {
  margin: 0 0 3px 12px;
  font-size: var(--comms-fs-sm);
  color: var(--comms-ink-mute);
  letter-spacing: 0.5px;
}

/* 气泡操作 */
.sms-bubble-actions {
  display: none;
  gap: 2px;
  margin-top: 4px;
  padding: 0 2px;
}
.sms-msg-col:hover .sms-bubble-actions { display: flex; }
.sms-bubble-act {
  width: 26px;
  height: 26px;
  border: none;
  border-radius: var(--comms-radius-xs);
  background: var(--comms-surface);
  border: 1px solid var(--comms-line);
  color: var(--comms-ink-soft);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.sms-bubble-act:hover { color: var(--comms-tiffany-deep); }
.sms-bubble-act--danger:hover { color: var(--comms-danger); }
.sms-bubble-act .material-symbols-outlined { font-size: 15px; }

/* 行内编辑 */
.sms-edit-area {
  width: 100%;
  min-width: 220px;
  min-height: 60px;
  resize: vertical;
  padding: 8px 10px;
  border: 1px solid var(--comms-tiffany);
  border-radius: var(--comms-radius-sm);
  background: var(--comms-surface);
  color: var(--comms-ink);
  font-family: inherit;
  font-size: var(--comms-fs-body-lg);
  line-height: 1.5;
}
.sms-edit-btns {
  display: flex;
  gap: 8px;
  margin-top: 6px;
}
.sms-edit-save,
.sms-edit-cancel {
  padding: 5px 14px;
  border-radius: var(--comms-radius-pill);
  border: 1px solid var(--comms-line);
  font-size: var(--comms-fs-body-sm);
  font-weight: var(--comms-weight-semibold);
  cursor: pointer;
}
.sms-edit-save {
  background: var(--comms-tiffany-deep);
  color: var(--comms-on-accent);
  border-color: transparent;
}
.sms-edit-cancel {
  background: var(--comms-surface);
  color: var(--comms-ink-soft);
}

/* typing */
.sms-typing {
  display: flex;
  justify-content: flex-start;
  padding: 2px 0 4px;
}
.sms-typing-bubble {
  display: flex;
  gap: 4px;
  align-items: center;
  padding: 11px 14px;
  background: var(--comms-surface);
  border: 1px solid var(--comms-line);
  border-radius: 18px 18px 18px 6px;
}
.sms-typing-bubble i {
  width: 6px;
  height: 6px;
  border-radius: var(--comms-radius-circle);
  background: var(--comms-tiffany);
  opacity: 0.4;
  animation: smsDot 1.1s infinite ease-in-out;
}
.sms-typing-bubble i:nth-child(2) { animation-delay: 0.15s; }
.sms-typing-bubble i:nth-child(3) { animation-delay: 0.3s; }
@keyframes smsDot {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-3px); opacity: 1; }
}

/* ─── 输入栏 ───────────────────────────────────────────── */
.sms-inputbar {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  flex-shrink: 0;
  padding: 8px 10px 10px;
  background: var(--comms-bg);
  border-top: 1px solid var(--comms-line);
}
.sms-input-plus,
.sms-input-send,
.sms-input-voice {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: var(--comms-radius-circle);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.sms-input-plus {
  background: var(--comms-surface);
  border: 1px solid var(--comms-line);
  color: var(--comms-tiffany-deep);
}
.sms-input-voice {
  background: var(--comms-surface);
  border: 1px solid var(--comms-line);
  color: var(--comms-ink-soft);
}
.sms-input-send {
  background: linear-gradient(135deg, var(--comms-tiffany) 0%, var(--comms-tiffany-deep) 100%);
  border: none;
  color: var(--comms-on-accent);
  box-shadow: var(--comms-shadow-glow);
}
.sms-input-plus .material-symbols-outlined,
.sms-input-send .material-symbols-outlined,
.sms-input-voice .material-symbols-outlined { font-size: 20px; }
.sms-input-shell {
  flex: 1;
  display: flex;
  align-items: flex-end;
  gap: 4px;
  min-height: 36px;
  padding: 4px 4px 4px 12px;
  background: var(--comms-surface);
  border: 1px solid var(--comms-line);
  border-radius: 20px;
}
.sms-input-shell textarea {
  flex: 1;
  min-width: 0;
  max-height: 88px;
  padding: 6px 0;
  border: none;
  outline: none;
  background: transparent;
  resize: none;
  font-family: inherit;
  font-size: var(--comms-fs-body-lg);
  line-height: 1.5;
  color: var(--comms-ink);
}
.sms-input-shell textarea::placeholder { color: var(--comms-ink-mute); }
.sms-input-emoji {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  border: none;
  background: transparent;
  color: var(--comms-ink-soft);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.sms-input-emoji.is-active { color: var(--comms-tiffany-deep); }
.sms-input-emoji .material-symbols-outlined { font-size: 20px; }

/* ─── 表情面板 ─────────────────────────────────────────── */
.sms-sheet {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 5;
  padding: 12px 14px 16px;
  background: var(--comms-surface);
  border-top: 1px solid var(--comms-line);
  box-shadow: var(--comms-shadow-sheet);
  transform: translateY(100%);
  transition: transform 0.24s cubic-bezier(0.4, 0, 0.2, 1);
  max-height: 260px;
  overflow-y: auto;
}
.sms-sheet.is-open { transform: translateY(0); }
.sms-sheet-grip {
  width: 36px;
  height: 4px;
  margin: 0 auto 10px;
  border-radius: 2px;
  background: var(--comms-line-mid);
}
.sms-emoji-group-name {
  margin-bottom: 6px;
  font-size: var(--comms-fs-sm);
  color: var(--comms-ink-mute);
  letter-spacing: 2px;
}
.sms-emoji-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 4px;
  margin-bottom: 10px;
}
.sms-emoji {
  aspect-ratio: 1 / 1;
  border: none;
  background: transparent;
  border-radius: var(--comms-radius-xs);
  font-size: 20px;
  cursor: pointer;
}
.sms-emoji:hover { background: var(--comms-tiffany-soft); }

/* ─── 头部菜单 ─────────────────────────────────────────── */
.sms-menu-scrim {
  position: absolute;
  inset: 0;
  z-index: 9;
  background: var(--comms-scrim);
}
.sms-menu {
  position: absolute;
  top: 56px;
  right: 12px;
  z-index: 10;
  min-width: 168px;
  padding: 4px;
  background: var(--comms-surface);
  border: 1px solid var(--comms-line);
  border-radius: var(--comms-radius-md);
  box-shadow: var(--comms-shadow-pop);
  overflow: hidden;
}
.sms-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 12px;
  border: none;
  border-radius: var(--comms-radius-sm);
  background: transparent;
  color: var(--comms-ink);
  font-size: var(--comms-fs-body-sm);
  letter-spacing: 0.3px;
  text-align: left;
  cursor: pointer;
}
.sms-menu-item:hover { background: var(--comms-bg-deep); }
.sms-menu-item .material-symbols-outlined {
  font-size: 17px;
  color: var(--comms-tiffany-deep);
}
.sms-menu-item--danger { color: var(--comms-danger); }
.sms-menu-item--danger .material-symbols-outlined { color: var(--comms-danger); }

/* ─── 资料卡（profile panel） ──────────────────────────── */
.sms-profile-scrim {
  position: absolute;
  inset: 0;
  z-index: 40;
  display: flex;
  align-items: flex-end;
  background: var(--comms-scrim-med);
  animation: smsFade 0.18s ease-out;
}
.sms-profile {
  width: 100%;
  padding: 16px 18px 22px;
  background: var(--comms-surface);
  border-radius: 24px 24px 0 0;
  box-shadow: var(--comms-shadow-pop);
  animation: smsSlideUp 0.24s cubic-bezier(0.4, 0, 0.2, 1);
}
.sms-profile-grip {
  width: 36px;
  height: 4px;
  margin: 0 auto 16px;
  border-radius: 2px;
  background: var(--comms-line-mid);
}
.sms-profile-top {
  display: flex;
  align-items: center;
  gap: 14px;
}
.sms-profile-top .sms-avatar {
  width: 64px;
  height: 64px;
  font-size: 27px;
}
.sms-profile-name {
  font-family: var(--sms-serif);
  font-size: var(--comms-fs-display);
  font-weight: var(--comms-weight-semibold);
  color: var(--comms-ink);
  letter-spacing: 0.5px;
}
.sms-profile-tag {
  margin-top: 2px;
  font-size: var(--comms-fs-body-sm);
  color: var(--comms-ink-soft);
}
.sms-profile-status {
  margin-top: 4px;
  font-size: var(--comms-fs-caption);
  color: var(--comms-ink-mute);
  letter-spacing: 0.5px;
}
.sms-profile-status.is-online { color: var(--comms-online); }
.sms-profile-note {
  margin-top: 16px;
  padding: 12px 14px;
  background: var(--comms-bg);
  border-radius: var(--comms-radius-sm);
  font-size: var(--comms-fs-body-sm);
  line-height: 1.6;
  color: var(--comms-ink-soft);
}
.sms-profile-fields {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 1px;
  border-radius: var(--comms-radius-sm);
  overflow: hidden;
}
.sms-profile-row {
  display: flex;
  gap: 12px;
  padding: 10px 14px;
  background: var(--comms-bg);
  font-size: var(--comms-fs-body-sm);
}
.sms-profile-row-label {
  flex-shrink: 0;
  width: 64px;
  color: var(--comms-ink-mute);
}
.sms-profile-row-val {
  flex: 1;
  color: var(--comms-ink);
}
.sms-profile-close {
  margin-top: 14px;
  width: 100%;
  padding: 10px 0;
  border: 1px solid var(--comms-line);
  border-radius: var(--comms-radius-sm);
  background: var(--comms-bg);
  color: var(--comms-ink-soft);
  font-size: var(--comms-fs-body-sm);
  cursor: pointer;
}

/* ─── toast ────────────────────────────────────────────── */
.sms-toast {
  position: absolute;
  top: 76px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 60;
  padding: 8px 16px;
  border-radius: var(--comms-radius-pill);
  background: var(--comms-toast-bg);
  color: var(--comms-on-accent);
  font-size: var(--comms-fs-body-sm);
  letter-spacing: 0.5px;
  pointer-events: none;
  animation: smsFade 0.18s ease-out;
}
.sms-toast.is-hidden { display: none; }

@keyframes smsFade {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes smsSlideUp {
  from { transform: translateY(24px); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}
.sms-bubble-in {
  animation: smsBubbleIn 0.26s cubic-bezier(0.2, 0.7, 0.3, 1);
}
@keyframes smsBubbleIn {
  from { opacity: 0; transform: translateY(8px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* ─── 调试入口（藏在头部菜单内，仅内部可见） ───────────── */
.sms-menu-item--debug {
  border-top: 1px solid var(--comms-line);
  margin-top: 4px;
  padding-top: 11px;
  color: var(--comms-ink-mute);
  font-size: var(--comms-fs-caption);
}
.sms-menu-item--debug .material-symbols-outlined { color: var(--comms-ink-mute); }