#view-dm .chat-page {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  /* bottom / height 由 JS 根据 visualViewport 动态设置，适配所有设备键盘 */
  display: flex;
  flex-direction: column;
  background: var(--bg);
}

/* ===== 顶部栏（容器/返回按钮样式见 chat-common） ===== */
.chat-header .more-btn {
  font-size: 1.3rem;
  color: var(--text-2);
  background: none;
  border: none;
  padding: 4px;
  min-width: 36px;
  cursor: pointer;
  border-radius: 10px;
}

.chat-header .more-btn:active {
  background: var(--border);
}

.chat-header .peer-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 600;
  flex-shrink: 0;
  overflow: hidden;
}

.chat-header .peer-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.chat-header .peer-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.chat-header .peer-name {
  font-size: .95rem;
  font-weight: 600;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chat-header .peer-status {
  font-size: .72rem;
  color: var(--text-3);
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.chat-header .peer-status .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--online);
  flex-shrink: 0;
}

.chat-header .more-wrap {
  position: relative;
  flex-shrink: 0;
}

.more-menu {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 6px;
  background: var(--surface);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .14);
  padding: 6px;
  z-index: 100;
  min-width: 140px;
}

.more-menu.show { display: block; }

.more-menu .more-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: .9rem;
  color: var(--text);
  white-space: nowrap;
}

.more-menu .more-menu-item:active { background: rgba(102, 126, 234, .08); }
.more-menu .more-menu-item i { font-size: 1.05rem; color: var(--text-2); width: 18px; text-align: center; }
.more-menu .more-menu-item.danger { color: #e5484d; }
.more-menu .more-menu-item.danger i { color: #e5484d; }

/* ===== 消息区 ===== */
.messages {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 1rem .9rem;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
  background-color: #e9edf6;
  background-image: url('../img/chat-bg-light.svg');
  background-repeat: repeat;
  background-size: 240px 240px;
}

.messages::-webkit-scrollbar {
  display: none;
}

.divider {
  text-align: center;
  font-size: .7rem;
  color: var(--text-3);
  margin: .9rem 0;
}

/* 透明底头像显示棋盘格（仅头部对方头像；消息行头像棋盘格见 room.css） */
.chat-header .peer-avatar img {
  background-color: #fff;
  background-image:
    linear-gradient(45deg, #d0d0d0 25%, transparent 25%),
    linear-gradient(-45deg, #d0d0d0 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #d0d0d0 75%),
    linear-gradient(-45deg, transparent 75%, #d0d0d0 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
}

/* 时间 + 已读（私聊独有） */
.bubble .time {
  display: block;
  margin-top: 3px;
  font-size: .62rem;
  text-align: right;
  color: var(--text-3);
}

.bubble .time .read-tick {
  margin-left: 4px;
  font-size: .72rem;
  color: var(--text-3);
}

.read-status {
  font-size: .66rem;
  color: var(--text-3);
  text-align: right;
  margin-top: 3px;
}

/* ==================== 私聊待同意栏 / 消息已读勾 ==================== */
.dm-agree-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 12px;
  background: #eef2ff;
  color: #667eea;
  flex-shrink: 0;
}
.dm-agree-text {
  flex: 1;
  font-size: .85rem;
}
.dm-agree-btn {
  border: none;
  background: #667eea;
  color: #fff;
  border-radius: 6px;
  padding: 4px 14px;
  font-size: .85rem;
  cursor: pointer;
}
.bubble .time .tick {
  margin-left: 4px;
  font-size: .72rem;
  color: var(--text-3);
}
/* ===== 撤回确认浮层 ===== */
.confirm-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 99999;
  display: none; align-items: center; justify-content: center; padding: 20px;
}
.confirm-overlay.show { display: flex; }
.confirm-panel {
  background: var(--surface); border-radius: 14px; padding: 20px;
  width: 100%; max-width: 280px; text-align: center;
  box-shadow: 0 10px 40px rgba(0,0,0,.2);
}
.confirm-title { font-size: 1rem; font-weight: 700; color: var(--text); margin-bottom: 18px; }
.confirm-btns { display: flex; gap: 10px; }
.confirm-btn {
  flex: 1; padding: 10px; border-radius: 10px; border: none; cursor: pointer;
  font-size: .9rem; background: #f2f2f2; color: var(--text);
}
.confirm-btn.danger { background: #e74c3c; color: #fff; }

/* ==================== 深色主题（私聊独有） ==================== */
[data-theme="dark"] .messages {
  background-color: #0e1621;
  background-image: url('../img/chat-bg-dark.svg');
}