body {
  font-family: "Microsoft YaHei", sans-serif;
  width: 600px;
  padding: 20px;
  background-color: #fefefe;
}

.header {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 15px;
}

.logo {
  width: 32px;
  height: 32px;
  margin-right: 10px;
}

.title-box {
  display: flex;
  align-items: center;
  gap: 12px;
}

h1 {
  font-size: 18px;
  color: #2c3e50;
  margin: 0;
}

.oa-link {
  font-size: 13px;
  text-decoration: none;
  color: #007bff;
  background-color: #f2f2f2;
  padding: 4px 8px;
  border-radius: 4px;
}

.oa-link:hover {
  background-color: #e0e0e0;
}

.container {
  display: flex;
  flex-direction: column;
}

.search-bar {
  display: flex;
  gap: 10px;
  margin-bottom: 15px;
}

.search-bar input {
  flex: 1;
  padding: 8px;
  font-size: 14px;
  border: 1px solid #ccc;
  border-radius: 4px;
}

.search-bar button {
  padding: 8px 16px;
  font-size: 14px;
  background-color: #007bff;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

.search-bar button:hover {
  background-color: #0056b3;
}

.tag-history {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 15px;
}

.tag-history .tag {
  background-color: #f0f0f0;
  color: #333;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  cursor: pointer;
}

.tag-history .tag:hover {
  background-color: #dcdcdc;
}

.hidden {
  display: none;
}

#results {
  list-style: none;
  padding: 0;
}

#results li {
  margin-bottom: 14px;
  border-bottom: 1px solid #ddd;
  padding-bottom: 10px;
}

#results a {
  font-weight: bold;
  color: #007bff;
  text-decoration: none;
  font-size: 15px;
}

#results a:hover {
  text-decoration: underline;
}

#results .summary {
  font-size: 13px;
  color: #444;
  margin-top: 4px;
}

.pagination {
  margin-top: 15px;
  display: flex;
  justify-content: center;
  gap: 10px;
}

.pagination button {
  padding: 6px 12px;
  font-size: 13px;
  background-color: #eee;
  border: 1px solid #ccc;
  border-radius: 3px;
  cursor: pointer;
}

.pagination button:hover {
  background-color: #ddd;
}

/* 基础结构样式保持不变，新增按钮样式 */

#clearHistoryBtn {
  background: #f8f8f8;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 14px;
  padding: 0 10px;
  cursor: pointer;
  line-height: 28px;
  height: 32px;
}

#clearHistoryBtn:hover {
  background-color: #eee;
}

/* 原样式基础上追加 */
.history-wrapper {
  margin-bottom: 10px;
}

.history-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  margin-bottom: 6px;
}

#clearHistoryBtn {
  background: #f8f8f8;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 14px;
  padding: 2px 8px;
  cursor: pointer;
  line-height: 20px;
}

#clearHistoryBtn:hover {
  background-color: #eee;
}

.delete-icon {
  width: 16px;
  height: 16px;
  max-width: 100%;
  object-fit: contain;
  cursor: pointer;
  opacity: 0.6;
  transition: opacity 0.2s;
}

.delete-icon:hover {
  opacity: 1;
  background-color: #f0f0f0;
  border-radius: 3px;
}

.user-info {
  font-size: 13px;
  color: #333;
  margin-left: 10px;
  font-weight: normal;
}

.logout-btn {
  margin-left: 10px;
  padding: 4px 10px;
  font-size: 12px;
  border: 1px solid #ccc;
  background: #f9f9f9;
  color: #333;
  border-radius: 4px;
  cursor: pointer;
}

.logout-btn:hover {
  background-color: #f0f0f0;
  color: #d00;
}

.user-menu {
  position: absolute;
  top: 16px;
  right: 16px;
}

.user-avatar {
  cursor: pointer;
  font-size: 18px;
  padding: 4px;
}

.user-dropdown {
  position: absolute;
  right: 0;
  top: 30px;
  background: white;
  border: 1px solid #ccc;
  box-shadow: 0 0 4px rgba(0,0,0,0.1);
  padding: 6px 10px;
  font-size: 13px;
  width: 120px;
  z-index: 99;
}

.user-dropdown div {
  padding: 6px 0;
  cursor: pointer;
}

.user-dropdown div:hover {
  background-color: #f0f0f0;
}

.hidden {
  display: none;
}

.llm-result-container {
  margin-bottom: 14px;
  max-height: 140px;
  overflow-y: auto;
  border: 1px solid #e0e9f4;
  border-radius: 7px;
  padding: 8px 12px;
  background: #f8fbff;
}

.llm-title {
  background: linear-gradient(90deg, #2560de 90%, #418cfb 100%);
  color: #fff;
  font-size: 16px;
  font-weight: bold;
  padding: 12px 12px 10px 12px;
  margin: 0 -10px 6px -10px;
  border-bottom: 1px solid #b3cdfb;
  border-radius: 8px 8px 0 0;
  position: sticky;
  top: 0;
  z-index: 2;
  letter-spacing: 1px;
  box-shadow: 0 2px 6px #2764bb11;
}


#llmResult {
  font-size: 14px;
  color: #233;
  line-height: 1.7;
  word-break: break-all;
  white-space: pre-wrap;
}

.llm-result-container {
  margin-bottom: 14px;
  max-height: 300px;
  min-height: 60px;
  overflow: auto;
  border: 1px solid #e0e9f4;
  border-radius: 7px;
  padding: 0 12px 8px 12px;
  background: #f8fbff;
  display: flex;
  flex-direction: column;
  resize: vertical;
}

.llm-title {
  position: sticky;
  top: 0;
  background: #f8fbff;
  font-weight: bold;
  color: #2453b5;
  margin: 0 -12px 8px -12px;
  padding: 8px 12px 6px 12px;
  font-size: 14px;
  border-bottom: 1px solid #e0e9f4;
  z-index: 2;
}

.llm-result-content {
  flex: 1;
  overflow-y: auto;
  min-height: 44px;
  font-size: 14px;
  color: #233;
  line-height: 1.7;
  word-break: break-all;
  white-space: pre-wrap;
}

.llm-input-bar {
  display: flex;
  gap: 8px;
  margin-top: 8px;
  padding-bottom: 2px;
  align-items: center;
}

#llmInput {
  flex: 1;
  padding: 6px 10px;
  border: 1px solid #c9dafc;
  border-radius: 5px;
  font-size: 14px;
  outline: none;
}

#llmSendBtn {
  padding: 6px 14px;
  background: #4179f6;
  color: #fff;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 14px;
  transition: background 0.2s;
}

#llmSendBtn:hover {
  background: #2350b8;
}

.llm-msg-item.llm-assistant {
  color: #2453b5;
  background: #e7eefb;
  border-radius: 5px;
  margin: 3px 0 9px 0;
  padding: 7px 8px;
  word-break: break-all;
  font-weight: 500;
  border: 1px solid #b3cdfb;
}

/* 只让“智能助手：”四字加粗/蓝色（需配合js输出span） */
.llm-msg-item.llm-assistant .assistant-label {
  color: #2560de;
  font-weight: bold;
  margin-right: 3px;
}