/* ==========================================================================
   1. THEME & GLOBAL STYLES
   ========================================================================== */

/* 🌞 日间模式 - 清新白绿风格 */
:root {
  /* 基础背景和文字 */
  --bg-color: #f8fdf8;
  --text-color: #2d3436;
  --text-secondary: #636e72;
  
  /* 头部和导航 */
  --header-bg: linear-gradient(135deg, #00b894, #00a085);
  --header-text: #ffffff;
  
  /* 聊天区域 */
  --chat-bg: #ffffff;
  --user-msg-bg: linear-gradient(135deg, #00b894, #00a085);
  --user-msg-color: #ffffff;
  --bot-msg-bg: #f1f9f1;
  --bot-msg-color: #2d3436;
  --bot-msg-border: #00b894;
  
  /* 输入框和表单 */
  --input-bg: #ffffff;
  --input-border: #ddd;
  --input-focus-border: #00b894;
  --input-focus-shadow: rgba(0, 184, 148, 0.15);
  
  /* 按钮 */
  --btn-primary: linear-gradient(135deg, #00b894, #00a085);
  --btn-primary-hover: linear-gradient(135deg, #00a085, #00947a);
  --btn-secondary: #6c757d;
  --btn-secondary-hover: #5a6268;
  --btn-success: #00b894;
  --btn-success-hover: #00a085;
  
  /* 卡片和容器 */
  --card-bg: #ffffff;
  --card-shadow: rgba(0, 184, 148, 0.08);
  --card-border: #e8f5e8;
  
  /* 表格 */
  --table-header-bg: linear-gradient(135deg, #00b894, #00a085);
  --table-header-text: #ffffff;
  --table-row-even: #f8fff8;
  --table-row-hover: rgba(0, 184, 148, 0.05);
  --table-border: #e8f5e8;
  
  /* 思维过程容器 */
  --thinking-bg: rgba(0, 184, 148, 0.1);
  --thinking-text: #2d3436;
  --thinking-border: rgba(0, 184, 148, 0.2);
  --thinking-header-bg: rgba(0, 184, 148, 0.15);
  
  /* 覆盖层和模态框 */
  --overlay-bg: rgba(45, 52, 54, 0.6);
  
  /* 滚动条 */
  --scrollbar-track: #f1f9f1;
  --scrollbar-thumb: #00b894;
  --scrollbar-thumb-hover: #00a085;
  
  /* 状态色 */
  --success-color: #00b894;
  --error-color: #e17055;
  --warning-color: #fdcb6e;
  --info-color: #74b9ff;
  
  /* 侧边栏 */
  --sidebar-bg: #ffffff;
  --sidebar-shadow: rgba(0, 184, 148, 0.1);
  --sidebar-item-hover: rgba(0, 184, 148, 0.1);
  --sidebar-item-active: rgba(0, 184, 148, 0.15);
}

/* 🌙 夜间模式 - 深色主题 */
[data-theme="dark"] {
  /* 基础背景和文字 */
  --bg-color: #0f1419;
  --text-color: #e6e6e6;
  --text-secondary: #b8b9ba;
  
  /* 头部和导航 */
  --header-bg: linear-gradient(135deg, #1a252f, #2c3e50);
  --header-text: #ffffff;
  
  /* 聊天区域 */
  --chat-bg: #1e2328;
  --user-msg-bg: linear-gradient(135deg, #00b894, #00a085);
  --user-msg-color: #ffffff;
  --bot-msg-bg: #2a2f36;
  --bot-msg-color: #e6e6e6;
  --bot-msg-border: #00b894;
  
  /* 输入框和表单 */
  --input-bg: #2a2f36;
  --input-border: #3c4043;
  --input-focus-border: #00b894;
  --input-focus-shadow: rgba(0, 184, 148, 0.2);
  
  /* 按钮 */
  --btn-primary: linear-gradient(135deg, #00b894, #00a085);
  --btn-primary-hover: linear-gradient(135deg, #00a085, #00947a);
  --btn-secondary: #6c757d;
  --btn-secondary-hover: #5a6268;
  --btn-success: #00b894;
  --btn-success-hover: #00a085;
  
  /* 卡片和容器 */
  --card-bg: #1e2328;
  --card-shadow: rgba(0, 0, 0, 0.3);
  --card-border: #3c4043;
  
  /* 表格 */
  --table-header-bg: linear-gradient(135deg, #2c3e50, #34495e);
  --table-header-text: #ffffff;
  --table-row-even: #252a30;
  --table-row-hover: rgba(0, 184, 148, 0.1);
  --table-border: #3c4043;
  
  /* 思维过程容器 */
  --thinking-bg: rgba(30, 35, 40, 0.9);
  --thinking-text: #e6e6e6;
  --thinking-border: rgba(60, 64, 67, 0.5);
  --thinking-header-bg: rgba(44, 62, 80, 0.8);
  
  /* 覆盖层和模态框 */
  --overlay-bg: rgba(0, 0, 0, 0.8);
  
  /* 滚动条 */
  --scrollbar-track: #2a2f36;
  --scrollbar-thumb: #00b894;
  --scrollbar-thumb-hover: #00a085;
  
  /* 状态色 */
  --success-color: #00b894;
  --error-color: #e17055;
  --warning-color: #fdcb6e;
  --info-color: #74b9ff;
  
  /* 侧边栏 */
  --sidebar-bg: #1e2328;
  --sidebar-shadow: rgba(0, 0, 0, 0.4);
  --sidebar-item-hover: rgba(0, 184, 148, 0.1);
  --sidebar-item-active: rgba(0, 184, 148, 0.2);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--bg-color);
  width: 100%;
  height: 100%;
  overflow: hidden; /* Prevent overall scrolling */
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* ==========================================================================
   2. LAYOUT & CORE COMPONENTS
   ========================================================================== */
.container {
  width: 100%;
  height: 100vh;
  padding: 24px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

header {
  text-align: center;
  margin-bottom: 20px;
  padding: 15px 20px !important;
  background: var(--header-bg) !important;
  color: var(--header-text) !important;
  border-radius: 12px;
  width: 100%;
  display: flex;
  align-items: center;
  box-sizing: border-box;
  box-shadow: 0 4px 12px rgba(0, 184, 148, 0.2) !important;
  border: 2px solid rgba(255, 255, 255, 0.1) !important;
  position: relative;
  overflow: hidden;
}

header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), transparent);
  pointer-events: none;
}

.header-title {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.site-logo {
  height: 36px !important;
  width: 36px !important;
  margin-right: 12px !important;
  object-fit: contain;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3)) !important;
  position: relative;
  z-index: 1;
}

header h1 {
  margin: 0;
  font-size: 1.6rem !important;
  font-weight: 700 !important;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3) !important;
  letter-spacing: 0.5px !important;
  position: relative;
  z-index: 1;
}

.content {
  display: flex;
  flex: 1;
  width: 100%;
  overflow: visible;
  position: relative;
  gap: 0px;
  align-items: stretch;
  min-height: 0;
  height: 100%;
}

/* Force alignment classes for strict layout control */
.header-force-align {
  width: 100% !important;
  margin-left: 0 !important;
  margin-right: 0 !important;
  box-sizing: border-box !important;
}

.content-force-align {
  gap: 0px !important;
  margin: 0 !important;
  width: 100% !important;
  height: 100% !important;
  align-items: stretch !important;
}

.chat-container-force-align, .config-container-force-align {
  box-sizing: border-box !important;
  height: 100% !important;
  align-self: stretch !important;
  margin: 0 !important;
}

.chat-container-force-align {
  flex: 0 0 33.33% !important;
  width: 33.33% !important;
  max-width: 33.33% !important;
  margin-right: 4px !important;
}

.config-container-force-align {
  flex: 0 0 66.67% !important;
  width: 66.67% !important;
  max-width: 66.67% !important;
  margin-left: 4px !important;
}


/* Drag Resizer */
.resizer {
  width: 6px;
  background-color: rgba(0, 0, 0, 0.1);
  cursor: col-resize;
  transition: background-color 0.3s;
  z-index: 5;
  display: none;
}

.resizer:hover, .resizer.active {
  background-color: var(--btn-primary);
}

.resizer.visible {
  display: block;
}

/* Overlay */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--overlay-bg);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  z-index: 90;
}

.overlay.active {
  opacity: 1;
  visibility: visible;
}

/* General Buttons */
button {
  padding: 12px 24px;
  margin-left: 10px;
  background: var(--btn-primary);
  color: white;
  border: none;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 14px;
  font-weight: 500;
  position: relative;
  overflow: hidden;
}

button:hover {
  background: var(--btn-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0, 184, 148, 0.3);
}

button:active {
  transform: translateY(0);
}

button:disabled {
  background: var(--table-row-even);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
  color: var(--text-secondary);
  border: 1px solid var(--card-border);
}

/* ==========================================================================
   3. SIDEBAR & HISTORY
   ========================================================================== */
.sidebar {
  position: fixed;
  top: 0;
  left: -300px;
  width: 300px;
  height: 100%;
  background-color: var(--sidebar-bg);
  box-shadow: 2px 0 15px var(--sidebar-shadow);
  z-index: 100;
  transition: left 0.3s ease;
  overflow-y: auto;
  border-right: 1px solid var(--card-border);
}

.sidebar.active {
  left: 0;
}

.sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  background: var(--header-bg);
  color: var(--header-text);
}

.menu-btn, .close-sidebar {
  background: none;
  border: none;
  color: var(--header-text);
  font-size: 24px;
  cursor: pointer;
  padding: 8px;
  border-radius: 6px;
  transition: background-color 0.2s;
}
.menu-btn { padding: 0 10px; }
.close-sidebar { font-size: 18px; }

.close-sidebar:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.sidebar-content {
  padding: 20px;
}

.sidebar-options {
  margin-bottom: 20px;
}

.new-chat-btn {
  width: 100%;
  padding: 12px;
  margin-bottom: 20px;
  background: var(--btn-primary);
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.3s ease;
  font-weight: 500;
}

.new-chat-btn:hover {
  background: var(--btn-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 184, 148, 0.3);
}

.history-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.history-item {
  padding: 12px;
  background-color: var(--sidebar-item-hover);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 1px solid transparent;
  color: var(--text-color);
}

.history-item:hover {
  background-color: var(--sidebar-item-active);
  border-color: var(--success-color);
  transform: translateX(4px);
}

.history-item.active {
  background: linear-gradient(90deg, var(--sidebar-item-active), transparent);
  border-left: 3px solid var(--success-color);
  color: var(--success-color);
  font-weight: 500;
}

.history-item-content {
  background-color: var(--card-bg);
  color: var(--text-color);
  transition: all 0.2s ease;
}

.history-title {
  color: var(--text-color);
  font-weight: bold;
  cursor: pointer;
  transition: color 0.2s ease;
}

.history-meta {
  color: var(--text-secondary);
  font-size: 11px;
  margin: 2px 0;
  transition: color 0.2s ease;
}

.config-summary, .model-reply-preview {
  font-size: 10px;
  padding: 4px 6px;
  margin: 3px 0;
  border-radius: 3px;
  border-left: 3px solid var(--success-color);
  background: var(--card-bg);
  color: var(--text-color);
  border: 1px solid var(--card-border);
  transition: all 0.2s ease;
}

.model-reply-preview {
  font-style: italic;
  color: var(--success-color);
}

[data-theme="dark"] .history-item-content {
  background-color: var(--sidebar-bg);
}
[data-theme="dark"] .history-title {
  color: var(--text-color) !important;
}
[data-theme="dark"] .history-meta {
  color: var(--text-secondary) !important;
}
[data-theme="dark"] .config-summary, [data-theme="dark"] .model-reply-preview {
  background-color: var(--card-bg) !important;
  color: var(--text-color) !important;
  border-color: var(--card-border);
}
[data-theme="dark"] .model-reply-preview {
  color: var(--success-color) !important;
}

/* ==========================================================================
   4. CHAT CONTAINER & MESSAGES
   ========================================================================== */

.chat-container {
  flex: 0 0 33.33% !important;
  display: flex;
  flex-direction: column;
  background-color: var(--chat-bg);
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  overflow: hidden;
  min-width: 300px;
  max-width: 33.33% !important;
  width: 33.33% !important;
  border: 1px solid var(--input-border);
  margin-right: 4px;
  box-sizing: border-box;
  height: 100%;
  align-self: stretch;
}

.chat-area {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
  height: 100%;
  background: var(--chat-bg);
}

.message {
  margin-bottom: 15px;
  padding: 15px;
  border-radius: 10px;
  max-width: 80%;
  word-wrap: break-word;
  animation: messageAppear 0.3s ease-out;
}
@keyframes messageAppear {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.user-message {
  background: var(--user-msg-bg) !important;
  color: var(--user-msg-color) !important;
  margin-left: auto;
  border-bottom-right-radius: 4px;
  box-shadow: 0 2px 8px rgba(0, 184, 148, 0.3) !important;
  border: none !important;
}

.bot-message {
  background: var(--bot-msg-bg);
  color: var(--bot-msg-color);
  margin-right: auto;
  border-bottom-left-radius: 4px;
  border-left: 3px solid var(--bot-msg-border);
}

.welcome-message {
  background: linear-gradient(135deg, var(--card-bg), var(--table-row-even));
  padding: 20px;
  border-radius: 12px;
  border-left: 5px solid var(--success-color);
  margin-bottom: 20px;
  box-shadow: 0 4px 12px var(--card-shadow);
  border: 1px solid var(--card-border);
  position: relative;
  overflow: hidden;
}
.welcome-message::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--btn-primary);
}
.welcome-message p {
  margin: 0;
  color: var(--text-color);
  line-height: 1.6;
  font-size: 15px;
}
[data-theme="dark"] .welcome-message {
  background: linear-gradient(135deg, var(--card-bg), var(--table-row-even)) !important;
  border-left-color: var(--success-color) !important;
  border-color: var(--card-border) !important;
}
[data-theme="dark"] .welcome-message p {
  color: var(--text-color) !important;
}

.input-area {
  display: flex !important;
  align-items: flex-end !important;
  gap: 10px !important;
  padding: 15px !important;
  background: var(--input-bg);
  border-top: 2px solid var(--input-border);
}

textarea#userInput {
  flex: 1 !important;
  min-height: 50px !important;
  max-height: 120px !important;
  padding: 12px 16px !important;
  border: 2px solid var(--input-border) !important;
  border-radius: 12px !important;
  font-size: 14px !important;
  line-height: 1.4 !important;
  resize: none !important;
  font-family: 'Arial', sans-serif !important;
  background: var(--input-bg) !important;
  color: var(--text-color) !important;
  transition: all 0.3s ease !important;
}

textarea#userInput:focus {
  outline: none !important;
  border-color: var(--input-focus-border) !important;
  background: var(--card-bg) !important;
  box-shadow: 0 0 0 3px var(--input-focus-shadow) !important;
}

.send-button {
  padding: 12px 20px !important;
  background: var(--btn-primary) !important;
  color: white !important;
  border: none !important;
  border-radius: 12px !important;
  font-size: 14px !important;
  font-weight: 600 !important;
  cursor: pointer !important;
  transition: all 0.3s ease !important;
  white-space: nowrap !important;
  height: 50px !important;
  min-width: 80px !important;
}

.send-button:hover {
  background: var(--btn-primary-hover) !important;
  transform: translateY(-1px) !important;
  box-shadow: 0 6px 20px rgba(0, 184, 148, 0.3) !important;
}

.send-button:disabled {
  background: var(--table-row-even) !important;
  color: var(--text-secondary) !important;
  cursor: not-allowed !important;
  transform: none !important;
}

/* ==========================================================================
   5. CONFIGURATION CONTAINER & CONTROLS
   ========================================================================== */

.config-container {
  display: flex !important;
  flex-direction: column !important;
  flex: 0 0 66.67% !important;
  min-width: 450px !important;
  max-width: 66.67% !important;
  width: 66.67% !important;
  background-color: var(--card-bg) !important;
  border-radius: 12px !important;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15) !important;
  z-index: 1 !important;
  padding: 1rem !important;
  transition: opacity 0.3s ease !important;
  overflow: hidden !important;
  opacity: 1 !important;
  transform: translateX(0) !important;
  border: 1px solid var(--input-border) !important;
  margin-left: 4px !important;
  box-sizing: border-box !important;
  height: 100% !important;
  align-self: stretch !important;
}

.config-container.hidden {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.config-header {
  padding: 15px;
  background: var(--header-bg);
  color: var(--header-text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-radius: 8px 8px 0 0;
}

.config-content {
  padding: 15px;
  background: var(--card-bg);
  flex: 1;
  overflow-y: auto;
  min-height: 0;
}

.seed-area {
  background: var(--table-row-even);
  padding: 15px;
  border-radius: 8px;
  position: relative;
  border: 1px solid var(--card-border);
}

#seedData {
  margin: 20px 0;
  padding: 15px;
  background: var(--table-row-even);
  border: 2px solid var(--card-border);
  border-radius: 8px;
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 150px;
  overflow-y: auto;
  color: var(--text-color);
}
pre {
  background: var(--table-row-even);
  padding: 12px;
  border-radius: 8px;
  overflow-x: auto;
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  white-space: pre-wrap;
  border: 1px solid var(--card-border);
  color: var(--text-color);
}

.actions-area {
  margin: 20px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.button-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  width: 100%;
  margin-bottom: 15px;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  min-width: 160px;
  height: 44px;
  box-sizing: border-box;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.primary-btn {
  background: var(--btn-primary);
  color: white;
  box-shadow: 0 4px 12px rgba(0, 184, 148, 0.2);
}

.secondary-btn {
  background: linear-gradient(135deg, var(--btn-secondary), #5a6268);
  color: white;
  box-shadow: 0 4px 12px rgba(108, 117, 125, 0.2);
}

.primary-btn:hover {
  background: var(--btn-primary-hover);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 184, 148, 0.4);
}

.secondary-btn:hover {
  background: linear-gradient(135deg, var(--btn-secondary-hover), #495057);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(108, 117, 125, 0.3);
}

.download-group {
  margin-top: 10px;
}

/* ==========================================================================
   6. OUTPUTS: TABLES & DATA DISPLAY
   ========================================================================== */
.output-section {
  width: 100%;
  padding: 20px 0;
  margin-top: 20px;
  overflow: auto;
  flex: 1;
  min-height: 0;
}

.tables-container {
  background-color: var(--card-bg) !important;
  border-radius: 12px !important;
  border: 1px solid var(--input-border) !important;
  padding: 1.5rem !important;
  margin: 4px 4px 2rem 4px !important;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15) !important;
  display: block !important;
  overflow: hidden !important;
  width: calc(100% - 8px) !important;
  box-sizing: border-box !important;
}

.tables-container .table-container, .table-container {
  margin-bottom: 30px;
  width: 100%;
  background: var(--card-bg);
  border-radius: 12px;
  padding: 15px;
  box-shadow: 0 2px 5px var(--card-shadow);
  overflow-x: auto;
  display: block;
  border: 1px solid var(--card-border);
}

.tables-container .table-container { /* Reset styles for nested containers */
  border: none;
  border-radius: 0;
  background-color: transparent;
  box-shadow: none;
  margin-bottom: 1.5rem;
  padding: 0;
}
.tables-container .table-container:last-child {
  margin-bottom: 0;
}

.table-title {
  font-size: 18px;
  margin-bottom: 15px;
  color: var(--text-color);
  font-weight: bold;
  text-align: center;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--input-border);
}

.hospital-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  border: 2px solid var(--table-border);
  border-radius: 8px;
  overflow: hidden;
}

.hospital-table th {
  background: var(--table-header-bg);
  color: var(--table-header-text);
  padding: 14px 12px;
  text-align: left;
  font-weight: 600;
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 2px solid var(--table-border);
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.5px;
}

.hospital-table td {
  padding: 12px;
  border-bottom: 1px solid var(--table-border);
  transition: all 0.2s ease;
}

.hospital-table tr:nth-child(even) {
  background-color: var(--table-row-even);
}

.hospital-table tr:hover {
  background-color: var(--table-row-hover);
  transform: scale(1.01);
  box-shadow: 0 2px 8px rgba(0, 184, 148, 0.1);
}

.total-row {
  font-weight: bold;
  background: linear-gradient(90deg, var(--success-color), rgba(0, 184, 148, 0.1)) !important;
  color: white;
}

.total-row td {
  border-top: 3px solid var(--success-color);
  font-weight: 700;
}

/* ==========================================================================
   7. 3D WORKBENCH & AXIS DESIGN
   ========================================================================== */

#3d-viewport-container {
  width: 100% !important;
  aspect-ratio: 3/2 !important;
  min-height: 500px !important;
  max-height: 800px !important;
  height: auto !important;
  position: relative !important;
  overflow: hidden !important;
  flex-shrink: 0 !important;
  border-bottom: 1px solid #dee2e6 !important;
}

#axis-container {
  width: 100% !important;
  height: 100% !important;
  position: absolute !important;
  top: 0 !important;
  left: 0 !important;
  background: #000 !important;
}

#floating-controls {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(0, 0, 0, 0.7);
  border-radius: 8px;
  padding: 12px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 100;
  display: flex;
  gap: 12px;
  max-width: 500px;
  transition: all 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

#floating-controls.collapsed {
  padding: 4px;
  max-width: 32px;
  max-height: 32px;
  overflow: visible;
  background: transparent;
  border: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  box-shadow: none;
}
#floating-controls.collapsed #floating-controls-content {
  display: none;
}
#floating-controls.collapsed #toggleFloatingControls {
  position: static;
  width: 32px;
  height: 32px;
  margin: 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

#toggleFloatingControls {
  position: absolute;
  top: -8px;
  right: -8px;
  width: 24px;
  height: 24px;
  background: rgba(0, 184, 148, 0.8);
  border: none;
  border-radius: 50%;
  color: white;
  font-size: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  z-index: 101;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

#toggleFloatingControls:hover {
  background: rgba(0, 184, 148, 1);
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(0, 184, 148, 0.4);
}

#floating-controls button {
  padding: 6px 8px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 4px;
  font-size: 10px;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  font-weight: 500;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
}

#floating-controls button:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* Workbench Buttons */
#clearBaseline:hover,
#generateCompleteBuilding:hover,
#generateBasePlan:hover,
#startAxisDrawing:hover {
  background: #009570 !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 165, 133, 0.3);
}

#toggleSnapToEndpoint:hover,
#toggleOrthogonalMode:hover {
  background: rgba(0, 184, 148, 0.1) !important;
  color: #00b894 !important;
  border-color: #00b894 !important;
  transform: translateY(-1px);
}

#undoAxisAction:not([disabled]):hover,
#redoAxisAction:not([disabled]):hover {
  background: rgba(0, 184, 148, 0.1) !important;
  color: #00b894 !important;
  border-color: #00b894 !important;
  opacity: 1 !important;
  cursor: pointer !important;
}

details summary {
  outline: none;
  user-select: none;
}
details summary::-webkit-details-marker {
  display: none;
}

/* ==========================================================================
   8. STATUS INDICATORS & UI FEEDBACK
   ========================================================================== */
.api-status {
  margin-top: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  padding: 10px 14px;
  background: var(--sidebar-item-hover);
  border-radius: 8px;
  border: 1px solid var(--card-border);
}

.api-status span:first-child {
  color: var(--text-secondary);
  font-weight: 500;
}

.status-indicator {
  font-weight: 600;
  transition: all 0.3s ease;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.status-online { color: var(--success-color); background: rgba(0, 184, 148, 0.1); }
.status-offline { color: var(--error-color); background: rgba(225, 112, 85, 0.1); }
.status-checking { color: var(--warning-color); background: rgba(253, 203, 110, 0.1); animation: pulse-checking 1.5s ease-in-out infinite; }
@keyframes pulse-checking {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.api-status-indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-right: 12px;
  transition: all 0.3s ease;
  display: inline-block;
  border: 2px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.1);
}
.api-status-indicator.online { background-color: var(--success-color); box-shadow: 0 0 0 2px rgba(0, 184, 148, 0.3); }
.api-status-indicator.offline { background-color: var(--error-color); box-shadow: 0 0 0 2px rgba(225, 112, 85, 0.3); }
.api-status-indicator.checking { background-color: var(--warning-color); box-shadow: 0 0 0 2px rgba(253, 203, 110, 0.3); animation: pulse-checking 1.5s ease-in-out infinite; }

.config-status, .config-status-btn {
  font-size: 0.9em;
  padding: 8px 16px;
  background: var(--btn-secondary);
  border-radius: 20px;
  transition: all 0.3s ease;
  color: white;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: none;
  cursor: pointer;
}
.config-status-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(0,184,148,0.4);
}
.config-status-btn:active {
  transform: scale(0.98);
}
.config-status.success, .config-status-btn.success { background: var(--btn-success); box-shadow: 0 2px 8px rgba(40, 167, 69, 0.3); }
.config-status.error, .config-status-btn.error { background: linear-gradient(135deg, var(--error-color), #d63031); box-shadow: 0 2px 8px rgba(225, 112, 85, 0.3); }
.config-status.loading, .config-status-btn.loading { background: linear-gradient(135deg, var(--info-color), #0984e3); animation: pulse-loading 2s ease-in-out infinite; pointer-events: none; }
@keyframes pulse-loading {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.05); opacity: 0.8; }
}
.config-status.ready, .config-status-btn.ready { background: linear-gradient(135deg, #00b894, #00a085); color: white; }

.error-message {
  color: var(--error-color);
  padding: 16px 20px;
  background: linear-gradient(135deg, rgba(225, 112, 85, 0.1), rgba(225, 112, 85, 0.05));
  border-radius: 10px;
  margin: 15px 0;
  font-size: 14px;
  border-left: 4px solid var(--error-color);
  box-shadow: 0 4px 12px rgba(225, 112, 85, 0.1);
  position: relative;
  overflow: hidden;
}
.error-message::before { content: '⚠️'; margin-right: 8px; font-size: 16px; }

/* ==========================================================================
   9. THINKING CONTAINER
   ========================================================================== */
.thinking-container {
  position: relative;
  width: 100%;
  max-width: 100%;
  margin: 15px 0;
  border-radius: 12px;
  overflow: hidden;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  z-index: 50;
  backdrop-filter: blur(20px) !important;
  -webkit-backdrop-filter: blur(20px) !important;
  background-color: var(--thinking-bg) !important;
  border: 1px solid var(--thinking-border);
  color: var(--thinking-text);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
[data-theme="dark"] .thinking-container {
  background-color: var(--thinking-bg) !important;
  border: 1px solid var(--thinking-border);
  color: var(--thinking-text);
}

.thinking-container.collapsed { height: 70px; }
.thinking-container.expanded { height: 320px; }

.thinking-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  cursor: pointer;
  user-select: none;
  border-bottom: 1px solid var(--thinking-border);
  background-color: var(--thinking-header-bg);
  backdrop-filter: blur(8px);
}
.thinking-header:hover {
  background: linear-gradient(90deg, var(--thinking-header-bg), var(--thinking-bg));
}
.thinking-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-color);
}
.thinking-title i { color: var(--success-color); }
[data-theme="dark"] .thinking-title { color: var(--thinking-text); }
.thinking-expand-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px 10px;
  border-radius: 5px;
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--thinking-text);
  transition: background-color 0.2s;
}
.thinking-expand-btn:hover { background-color: rgba(255, 255, 255, 0.1); }
.thinking-container.expanded .thinking-expand-btn i { transform: rotate(180deg); }

.thinking-content {
  padding: 15px;
  font-size: 13px;
  line-height: 1.5;
  overflow-y: auto;
  white-space: pre-wrap;
  height: calc(100% - 60px);
  font-family: monospace;
}
.thinking-content code {
  display: block;
  padding: 8px;
  border-radius: 4px;
  margin: 5px 0;
  background-color: rgba(0, 0, 0, 0.05);
}
[data-theme="dark"] .thinking-content code { background-color: rgba(0, 0, 0, 0.3); }

/* ==========================================================================
   10. MISC & UTILITIES
   ========================================================================== */

/* Theme Toggle Switch */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding: 12px 16px;
  background: var(--sidebar-item-hover);
  border-radius: 10px;
  border: 1px solid var(--card-border);
  transition: all 0.3s ease;
}
.theme-toggle:hover {
  background: var(--sidebar-item-active);
  border-color: var(--success-color);
}
.theme-toggle span {
  color: var(--text-color);
  font-weight: 500;
  font-size: 14px;
}
.switch { position: relative; display: inline-block; width: 54px; height: 28px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background: linear-gradient(135deg, var(--table-row-even), var(--card-bg)); transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); border: 2px solid var(--card-border); }
.slider:before { position: absolute; content: ""; height: 20px; width: 20px; left: 2px; bottom: 2px; background: linear-gradient(135deg, var(--card-bg), var(--table-row-even)); transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15); }
input:checked + .slider { background: var(--btn-primary); border-color: var(--success-color); }
input:checked + .slider:before { transform: translateX(26px); background: linear-gradient(135deg, var(--card-bg), var(--table-row-even)); box-shadow: 0 2px 12px rgba(0, 184, 148, 0.3); }
.slider.round { border-radius: 28px; }
.slider.round:before { border-radius: 50%; }

/* Dialogs & Context Menus */
.dialog-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background-color: var(--overlay-bg); display: flex; justify-content: center; align-items: center; z-index: 1000; animation: fadeIn 0.3s ease; }
.dialog-content { background-color: var(--card-bg); border-radius: 8px; padding: 20px; width: 90%; max-width: 400px; box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15); animation: scaleIn 0.3s ease; color: var(--text-color); }
.context-menu { position: fixed; z-index: 1000; background-color: var(--card-bg); border-radius: 8px; box-shadow: 0 2px 10px var(--card-shadow); min-width: 150px; animation: fadeIn 0.2s ease; }
.context-menu-item { padding: 10px 15px; cursor: pointer; display: flex; align-items: center; gap: 8px; transition: background-color 0.2s; color: var(--text-color); }
.context-menu-item:hover { background: var(--sidebar-item-hover); }

/* Loading & Typing Indicators */
.typing-indicator { background: var(--bot-msg-bg); padding: 15px; display: flex; align-items: center; border-left: 3px solid var(--bot-msg-border); border-radius: 10px; }
.typing-indicator span { height: 10px; width: 10px; float: left; margin: 0 1px; background: var(--success-color); display: block; border-radius: 50%; opacity: 0.6; }
.typing-indicator span:nth-of-type(1) { animation: 1s blink infinite 0.3333s; }
.typing-indicator span:nth-of-type(2) { animation: 1s blink infinite 0.6666s; }
.typing-indicator span:nth-of-type(3) { animation: 1s blink infinite 0.9999s; }
@keyframes blink { 50% { opacity: 1; } }
@keyframes blink-cursor { 0%, 100% { border-right-color: transparent; } 50% { border-right-color: var(--text-color); } }
#streamingMessage { border-right: 2px solid var(--text-color); padding-right: 2px; animation: blink-cursor 0.8s infinite; white-space: pre-wrap; }

/* Markdown Rendering */
.bot-message h1, .bot-message h2, .bot-message h3, .bot-message h4 { margin: 16px 0 10px 0; font-weight: 600; line-height: 1.3; color: var(--text-color); }
.bot-message h1 { font-size: 1.5em; color: var(--success-color); border-bottom: 2px solid var(--success-color); padding-bottom: 0.3em; }
.bot-message h2 { font-size: 1.4em; color: var(--success-color); border-bottom: 1px solid var(--success-color); padding-bottom: 0.2em; }
.bot-message ul, .bot-message ol { margin: 12px 0; padding-left: 24px; }
.bot-message blockquote { border-left: 4px solid var(--success-color); margin: 16px 0; padding: 12px 20px; background: linear-gradient(90deg, var(--table-row-even), rgba(0, 184, 148, 0.02)); font-style: italic; border-radius: 0 8px 8px 0; }
.bot-message code { background: linear-gradient(135deg, var(--table-row-even), rgba(0, 184, 148, 0.05)); padding: 3px 8px; border-radius: 4px; font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace; font-size: 0.9em; color: var(--success-color); border: 1px solid var(--card-border); }
.bot-message pre { background: linear-gradient(135deg, var(--table-row-even), rgba(0, 184, 148, 0.03)); border: 2px solid var(--card-border); border-radius: 8px; padding: 16px; margin: 16px 0; overflow-x: auto; }
.bot-message table, .markdown-table { border-collapse: collapse; width: 100%; margin: 16px 0; font-size: 0.9em; border-radius: 8px; overflow: hidden; border: 2px solid var(--table-border); }
.bot-message table th, .markdown-table th { background: var(--table-header-bg); color: var(--table-header-text); font-weight: 600; }
.bot-message table tr:nth-child(even), .markdown-table tr:nth-child(even) { background: var(--table-row-even); }
.bot-message table tr:hover, .markdown-table tr:hover { background: var(--table-row-hover); transform: scale(1.01); }

/* Global Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--scrollbar-track); border-radius: 4px; }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 4px; transition: background 0.2s ease; }
::-webkit-scrollbar-thumb:hover { background: var(--scrollbar-thumb-hover); }
* { scrollbar-width: thin; scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track); }


/* ==========================================================================
   11. RESPONSIVE DESIGN & MEDIA QUERIES
   ========================================================================== */
@media (max-width: 768px) {
  .content { flex-direction: column; gap: 8px; }
  .chat-container, .config-container { flex: 1; max-width: 100%; width: 100%; min-width: unset; margin: 0 !important; }
  .chat-container { margin-bottom: 4px !important; }
  .resizer { width: 100%; height: 6px; cursor: row-resize; }
  .thinking-container.expanded { height: 250px; }
  #3d-viewport-container { min-height: 300px !important; max-height: 450px !important; }
  #floating-controls { top: 8px; right: 8px; max-width: 450px; padding: 10px; gap: 10px; }
}

@media (max-width: 480px) {
  #3d-viewport-container { min-height: 250px !important; max-height: 375px !important; }
  #floating-controls { flex-direction: column; max-width: 150px; gap: 8px; }
}

/* Dark Theme Specific Overrides from Merge */
[data-theme="dark"] details summary { background: var(--table-row-even) !important; color: var(--text-secondary) !important; }
[data-theme="dark"] details > div { background: var(--card-bg) !important; border-color: var(--card-border) !important; }
[data-theme="dark"] details label { color: var(--text-secondary) !important; }
[data-theme="dark"] details span { color: var(--success-color) !important; }
[data-theme="dark"] #undoAxisAction[disabled], [data-theme="dark"] #redoAxisAction[disabled] { background: var(--table-row-even) !important; color: var(--text-secondary) !important; border-color: var(--card-border) !important; }
[data-theme="dark"] .workbench-header { background: linear-gradient(135deg, #2c3e50, #34495e) !important; }

[data-theme="dark"] .hospital-table {
  background-color: var(--card-bg);
  border-color: var(--table-border);
}

[data-theme="dark"] .hospital-table tr:nth-child(odd) {
  background-color: var(--card-bg);
}

[data-theme="dark"] .hospital-table tr:nth-child(even) {
  background-color: var(--table-row-even);
}

[data-theme="dark"] .hospital-table td, 
[data-theme="dark"] .hospital-table th {
  border-color: var(--table-border);
  color: var(--text-color);
}

[data-theme="dark"] .hospital-table th {
  color: var(--table-header-text);
}

/* Override inline styles for Control Panel in Dark Mode */
[data-theme="dark"] #main-control-panel {
  background: var(--card-bg) !important;
  color: var(--text-color) !important;
  border-top: 1px solid var(--card-border) !important;
}

[data-theme="dark"] #main-control-panel h4 {
  color: var(--text-color) !important;
  border-bottom-color: var(--success-color) !important;
}

/* Override specific text colors hardcoded in HTML */
[data-theme="dark"] #main-control-panel div[style*="color: #495057"],
[data-theme="dark"] #main-control-panel div[style*="color: #2d3436"] {
  color: var(--text-secondary) !important;
}

/* Fix generation status box in dark mode */
[data-theme="dark"] #generationStatus {
  background: var(--card-bg) !important;
  color: var(--text-color) !important;
  border-color: var(--success-color) !important;
  box-shadow: none !important;
}

/* Fix tables container background which has inline style */
[data-theme="dark"] #tables-container {
  background-color: var(--card-bg) !important;
  border-color: var(--card-border) !important;
}

/* Integrated Workspace Dark Mode */
[data-theme="dark"] #integrated-workspace {
  background: var(--card-bg) !important;
  border-color: var(--card-border) !important;
}

[data-theme="dark"] #integrated-workspace .workbench-header {
  background: var(--header-bg) !important;
  color: var(--header-text) !important;
}

[data-theme="dark"] #integrated-workspace .config-content {
  background: var(--card-bg) !important;
  color: var(--text-color) !important;
}

/* 🔧 流式输出光标动画 */
.streaming-cursor {
  animation: blink 0.7s infinite;
  color: var(--success-color, #00b894);
  font-weight: bold;
}

.thinking-text {
  color: var(--text-secondary, #636e72);
  font-style: italic;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

@keyframes pulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

.message.streaming {
  min-height: 24px;
}