/* 私信页面样式 */

/* 聊天容器 */
.chat-container {
  display: flex;
  height: calc(100vh - 80px);
  background: var(--background-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  margin-top: 20px;
}

/* 会话列表面板 */
.conversations-panel {
  width: 320px;
  min-width: 280px;
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  background: var(--background-color);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  background: var(--background-card);
}

.panel-header h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-color);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.panel-header h2 i {
  color: var(--primary-color);
}

.new-chat-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  border: none;
  background: var(--primary-color);
  color: white;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.new-chat-btn:hover {
  background: var(--secondary-color);
  transform: scale(1.05);
}

/* 搜索用户 */
.search-user-container {
  display: flex;
  align-items: center;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-color);
  background: var(--background-card);
}

.search-user-container input {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 14px;
  outline: none;
  transition: var(--transition);
}

.search-user-container input:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.close-search-btn {
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  color: var(--text-light);
  cursor: pointer;
  margin-left: 8px;
  border-radius: var(--radius-full);
  transition: var(--transition);
}

.close-search-btn:hover {
  background: var(--border-color);
  color: var(--text-color);
}

/* 可联系用户列表 */
.contactable-users {
  flex: 1;
  overflow-y: auto;
}

.contactable-user-item {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  cursor: pointer;
  transition: var(--transition);
  border-bottom: 1px solid var(--border-color);
}

.contactable-user-item:hover {
  background: rgba(74, 144, 226, 0.05);
}

.contactable-user-item .user-avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--border-color);
  color: var(--text-light);
  margin-right: 12px;
}

.contactable-user-item .user-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.contactable-user-item .user-avatar i {
  font-size: 44px;
}

.contactable-user-item .user-info {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.contactable-user-item .user-name {
  font-weight: 500;
  color: var(--text-color);
  font-size: 15px;
}

.contactable-user-item .user-relation {
  font-size: 12px;
  color: var(--text-light);
  margin-top: 2px;
}

.contactable-user-item .has-chat {
  font-size: 12px;
  color: var(--primary-color);
  background: rgba(74, 144, 226, 0.1);
  padding: 4px 8px;
  border-radius: 0;
}

/* 会话列表 */
.conversations-list {
  flex: 1;
  overflow-y: auto;
}

.conversation-item {
  display: flex;
  align-items: center;
  padding: 14px 16px;
  cursor: pointer;
  transition: var(--transition);
  border-bottom: 1px solid var(--border-color);
  position: relative;
}

.conversation-item:hover {
  background: rgba(74, 144, 226, 0.05);
}

.conversation-item.active {
  background: rgba(74, 144, 226, 0.1);
}

.conversation-avatar {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--border-color);
  color: var(--text-light);
  margin-right: 12px;
  position: relative;
  flex-shrink: 0;
}

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

.conversation-avatar i {
  font-size: 50px;
}

.conversation-avatar .unread-badge {
  position: absolute;
  top: -2px;
  right: -2px;
  min-width: 18px;
  height: 18px;
  background: var(--error-color);
  color: white;
  font-size: 11px;
  font-weight: 600;
  border-radius: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
}

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

.conversation-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

.conversation-name {
  font-weight: 600;
  color: var(--text-color);
  font-size: 15px;
}

.conversation-time {
  font-size: 12px;
  color: var(--text-light);
}

.conversation-preview {
  font-size: 13px;
  color: var(--text-light);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.conversation-preview .sent {
  color: var(--text-light);
}

.conversation-preview .sent::before {
  content: '你: ';
}

.conversation-preview .no-message {
  font-style: italic;
}

/* 聊天面板 */
.chat-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--background-card);
}

.chat-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
}

.chat-empty i {
  font-size: 64px;
  margin-bottom: 20px;
  opacity: 0.3;
}

.chat-empty h3 {
  font-size: 20px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-color);
}

.chat-empty p {
  font-size: 14px;
  color: var(--text-light);
}

.chat-empty .hint {
  margin-top: 8px;
  font-size: 13px;
}

/* 聊天头部 */
.chat-header {
  display: flex;
  align-items: center;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border-color);
  background: var(--background-card);
}

.back-to-list {
  display: none;
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  color: var(--text-color);
  cursor: pointer;
  border-radius: var(--radius-full);
  margin-right: 8px;
  transition: var(--transition);
}

.back-to-list:hover {
  background: var(--border-color);
}

.chat-user-info {
  display: flex;
  align-items: center;
  flex: 1;
}

.chat-avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--border-color);
  color: var(--text-light);
  margin-right: 12px;
}

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

.chat-avatar i {
  font-size: 44px;
}

.chat-user-details {
  display: flex;
  flex-direction: column;
}

.chat-username {
  font-weight: 600;
  font-size: 16px;
  color: var(--text-color);
}

.chat-relation {
  font-size: 12px;
  margin-top: 2px;
}

.relation-tag {
  padding: 2px 8px;
  border-radius: 0;
  font-size: 11px;
}

.relation-tag.mutual {
  background: rgba(25, 135, 84, 0.1);
  color: var(--success-color);
}

.relation-tag.following {
  background: rgba(74, 144, 226, 0.1);
  color: var(--primary-color);
}

.relation-tag.follower {
  background: rgba(253, 126, 20, 0.1);
  color: #fd7e14;
}

.relation-tag.stranger {
  background: rgba(108, 117, 125, 0.1);
  color: #6c757d;
}

.relation-tag.blocked {
  background: rgba(220, 53, 69, 0.1);
  color: var(--error-color);
}

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

.chat-action-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  border: none;
  background: transparent;
  color: var(--text-light);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.chat-action-btn:hover {
  background: var(--border-color);
  color: var(--primary-color);
}

/* 消息容器 */
.messages-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--background-color);
}

.messages-list {
  flex: 1;
  overflow-y: auto;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.load-more-messages {
  text-align: center;
  padding: 10px;
}

.load-more-messages button {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--primary-color);
  padding: 8px 20px;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 13px;
  transition: var(--transition);
}

.load-more-messages button:hover {
  background: rgba(74, 144, 226, 0.1);
}

/* 消息项 */
.message {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  max-width: 75%;
}

.message.mine {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.message.theirs {
  align-self: flex-start;
}

.message-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--border-color);
  color: var(--text-light);
  flex-shrink: 0;
}

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

.message-avatar i {
  font-size: 32px;
}

.message-content {
  display: flex;
  flex-direction: column;
}

.message.mine .message-content {
  align-items: flex-end;
}

.message.theirs .message-content {
  align-items: flex-start;
}

.message-bubble {
  padding: 10px 14px;
  border-radius: var(--radius-lg);
  font-size: 14px;
  line-height: 1.5;
  word-wrap: break-word;
  max-width: 100%;
}

.message.mine .message-bubble {
  background: var(--primary-color);
  color: white;
  border-bottom-right-radius: 4px;
}

.message.theirs .message-bubble {
  background: var(--background-card);
  color: var(--text-color);
  border-bottom-left-radius: 4px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.message-bubble a {
  color: inherit;
  text-decoration: underline;
}

.message.mine .message-bubble a {
  color: rgba(255, 255, 255, 0.9);
}

.message-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
  padding: 0 4px;
}

.message-time {
  font-size: 11px;
  color: var(--text-light);
}

.message-status {
  font-size: 12px;
  color: var(--text-light);
}

.message-status .fa-check {
  color: var(--text-light);
}

.message-status .fa-check-double {
  color: var(--primary-color);
}

/* 输入区域 */
.message-input-container {
  border-top: 1px solid var(--border-color);
  padding: 16px 20px;
  background: var(--background-card);
}

.permission-warning {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: rgba(253, 126, 20, 0.1);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  color: #fd7e14;
  font-size: 13px;
}

.permission-warning i {
  font-size: 16px;
}

.message-input-wrapper {
  display: flex;
  align-items: flex-end;
  gap: 12px;
}

.message-input-wrapper textarea {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-family: inherit;
  resize: none;
  outline: none;
  max-height: 150px;
  transition: var(--transition);
  line-height: 1.5;
}

.message-input-wrapper textarea:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.message-input-wrapper textarea:disabled {
  background: var(--border-color);
  cursor: not-allowed;
}

.send-btn {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  border: none;
  background: var(--primary-color);
  color: white;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.send-btn:hover:not(:disabled) {
  background: var(--secondary-color);
  transform: scale(1.05);
}

.send-btn:disabled {
  background: var(--border-color);
  color: var(--text-light);
  cursor: not-allowed;
}

/* 消息发送状态 */
.message-bubble.sending {
  opacity: 0.7;
}

.message-bubble.failed {
  border: 1px solid var(--error-color) !important;
  background: rgba(244, 67, 54, 0.05) !important;
}

/* 图片上传按钮 */
.image-upload-btn {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  border: none;
  background: transparent;
  color: var(--text-light);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 18px;
}

.image-upload-btn:hover {
  color: var(--primary-color);
  background: rgba(74, 144, 226, 0.1);
}

/* 图片预览区域 */
.image-preview {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--background-color);
  border-radius: var(--radius-md);
  margin-bottom: 8px;
  position: relative;
}

.image-preview img {
  max-width: 120px;
  max-height: 80px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.remove-image-btn {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  border: none;
  background: rgba(0, 0, 0, 0.6);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: var(--transition-fast);
}

.remove-image-btn:hover {
  background: var(--error-color);
}

/* 消息中的图片 */
.message-image {
  max-width: 240px;
  max-height: 240px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  display: block;
}

.message-image:hover {
  opacity: 0.9;
  transform: scale(1.02);
}

.image-bubble {
  padding: 4px !important;
  background: transparent !important;
  max-width: 260px;
}

.image-bubble.mine {
  background: transparent !important;
}

.message-image-text {
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.5;
  word-break: break-word;
}

/* 图片灯箱 */
.image-lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-lightbox .lightbox-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  cursor: pointer;
}

.image-lightbox .lightbox-content {
  position: relative;
  z-index: 1;
  max-width: 90vw;
  max-height: 90vh;
}

.image-lightbox .lightbox-content img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.image-lightbox .lightbox-close {
  position: absolute;
  top: -12px;
  right: -12px;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  border: none;
  background: rgba(0, 0, 0, 0.7);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: var(--transition-fast);
}

.image-lightbox .lightbox-close:hover {
  background: var(--error-color);
}

/* 空状态 */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-light);
}

.empty-state i {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-state p {
  font-size: 14px;
  margin: 8px 0;
}

.empty-state .hint {
  font-size: 12px;
  opacity: 0.7;
}

/* 删除确认弹窗 */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background: var(--background-card);
  padding: 24px;
  border-radius: var(--radius-lg);
  max-width: 400px;
  width: 90%;
  box-shadow: var(--shadow-lg);
}

.modal-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 12px;
}

.modal-content p {
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 20px;
  line-height: 1.5;
}

.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

/* btn-cancel/btn-confirm 由 style.css 统一定义；chat 的 confirm 是危险操作（删除），覆盖为红色 */
.btn-confirm {
  background: var(--error-color);
  border: none;
  color: white;
  padding: var(--btn-padding-md);
  border-radius: var(--radius-md);
  font-size: var(--btn-font-size);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-confirm:hover {
  background: var(--error-dark);
}

/* 加载状态 */
.loading {
  text-align: center;
  padding: 40px;
  color: var(--text-light);
}

.loading i {
  margin-right: 8px;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .chat-container {
    margin-top: 0;
    border-radius: 0;
    height: calc(100vh - 60px);
  }
  
  .conversations-panel {
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10;
  }
  
  .chat-panel {
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 20;
    display: none;
  }
  
  .back-to-list {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .message {
    max-width: 85%;
  }
  
  .messages-list {
    padding: 12px 16px;
  }
  
  .message-input-container {
    padding: 12px 16px;
  }
}

/* 滚动条样式 */
.messages-list::-webkit-scrollbar,
.conversations-list::-webkit-scrollbar,
.contactable-users::-webkit-scrollbar {
  width: 6px;
}

.messages-list::-webkit-scrollbar-track,
.conversations-list::-webkit-scrollbar-track,
.contactable-users::-webkit-scrollbar-track {
  background: transparent;
}

.messages-list::-webkit-scrollbar-thumb,
.conversations-list::-webkit-scrollbar-thumb,
.contactable-users::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 0;
}

.messages-list::-webkit-scrollbar-thumb:hover,
.conversations-list::-webkit-scrollbar-thumb:hover,
.contactable-users::-webkit-scrollbar-thumb:hover {
  background: var(--text-light);
}

/* 深色模式图片样式调整 */
[data-theme="dark"] .image-preview {
  background: #1e293b;
}

[data-theme="dark"] .image-upload-btn:hover {
  background: rgba(43, 108, 176, 0.2);
}

[data-theme="dark"] .image-bubble.mine {
  background: transparent !important;
}

/* ==================== Emoji 按钮样式 ==================== */
.emoji-btn {
  width: 44px; height: 44px;
  border-radius: var(--radius-full);
  border: none; background: transparent;
  color: var(--text-light); cursor: pointer;
  transition: var(--transition);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; font-size: 18px;
}
.emoji-btn:hover { color: var(--warning-color); background: rgba(255,152,0,0.1); }