/* ====================
   校园声音地图 - 卡通明丽风格样式
   ==================== */

/* ====================
   触摸设备优化
   ==================== */

/* 触摸设备优化 */
@media screen and (pointer: coarse) {
  .interactive-area,
  .mode-btn,
  .help-btn,
  .logout-btn,
  .area-item,
  .add-area-btn,
  .edit-area-btn {
    -webkit-tap-highlight-color: rgba(100, 181, 246, 0.2);
  }
}

/* Reset and base styles */

/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

:root {
  /* 卡通明丽配色方案 */
  --primary-blue: #64B5F6;
  --primary-green: #81C784;
  --primary-yellow: #FFEB3B;
  --primary-orange: #FFB74D;
  --primary-pink: #FFB74D;
  --primary-purple: #BA68C8;
  --primary-red: #E57373;
  
  /* 背景色 */
  --bg-color: #FFF8E1;
  --card-bg: #FFFFFF;
  
  /* 文字颜色 */
  --text-primary: #424242;
  --text-secondary: #757575;
  --text-light: #FFFFFF;
  
  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
  
  /* 圆角 */
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 32px;
  
  /* 间距 */
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  
  /* 字体 */
  --font-cartoon: 'Comic Sans MS', 'Quicksand', 'Arial Rounded MT Bold', cursive;
}

/* Global styles */
body {
  font-family: var(--font-cartoon);
  background: linear-gradient(135deg, #FFF8E1 0%, #FFE0B2 100%);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

#app {
  width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ====================
   Header - 顶部导航栏
   ==================== */

.header {
  background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
  padding: var(--spacing-sm) var(--spacing-md);
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  z-index: 100;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.app-title {
  font-size: 1.8rem;
  font-weight: bold;
  color: var(--text-light);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
  margin: 0;
}

.mode-switch-container {
  display: flex;
  gap: var(--spacing-sm);
  background: rgba(255, 255, 255, 0.3);
  padding: var(--spacing-xs);
  border-radius: var(--radius-md);
}

.mode-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 1.1rem;
  font-family: var(--font-cartoon);
  font-weight: bold;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  background: rgba(255, 255, 255, 0.6);
  color: var(--text-primary);
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
  min-width: 120px;
}

.mode-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.9);
}

.mode-btn.active {
  background: var(--primary-yellow);
  color: var(--text-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.mode-btn:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

/* ====================
   (Sync Button removed - auto-sync on save)
   ==================== */

/* ====================
   View Container - 视图容器
   ==================== */

.view-container {
  display: none;
  flex: 1;
  padding: var(--spacing-md);
  animation: fadeIn 0.3s ease-in-out;
  width: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  box-sizing: border-box;
}

.view-container.active {
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* 内容包装器 - 确保内容居中 */
.content-wrapper {
  width: 100%;
  max-width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.content-wrapper {
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
}

/* ====================
   登录界面样式 - 卡通可爱风格
   ==================== */

.login-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, #E3F2FD 0%, #BBDEFB 30%, #FFE0B2 70%, #FFCC80 100%);
  z-index: 1000;
  overflow: hidden;
}

/* 背景装饰云朵 */
.login-container::before {
  content: '';
  position: absolute;
  top: 10%;
  left: 5%;
  width: 120px;
  height: 60px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 60px;
  animation: floatCloud 8s ease-in-out infinite;
}

.login-container::after {
  content: '';
  position: absolute;
  top: 20%;
  right: 10%;
  width: 80px;
  height: 40px;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 40px;
  animation: floatCloud 6s ease-in-out infinite reverse;
}

@keyframes floatCloud {
  0%, 100% {
    transform: translateX(0) translateY(0);
  }
  50% {
    transform: translateX(20px) translateY(-10px);
  }
}

.login-container.hidden {
  display: none;
}

.login-card {
  position: relative;
  background: linear-gradient(180deg, #FFFFFF 0%, #FFFDE7 100%);
  border-radius: 32px;
  box-shadow: 
    0 10px 40px rgba(255, 183, 77, 0.3),
    0 0 0 6px rgba(255, 255, 255, 0.8),
    inset 0 2px 0 rgba(255, 255, 255, 0.9);
  padding: 48px 40px;
  width: 90%;
  max-width: 440px;
  text-align: center;
  animation: cardPopIn 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes cardPopIn {
  0% {
    opacity: 0;
    transform: scale(0.8) translateY(30px);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* 卡片装饰角标 */
.login-card::before {
  content: '✨';
  position: absolute;
  top: -15px;
  right: 30px;
  font-size: 28px;
  animation: twinkle 2s ease-in-out infinite;
}

.login-card::after {
  content: '🌟';
  position: absolute;
  top: 20px;
  left: 20px;
  font-size: 20px;
  animation: twinkle 2.5s ease-in-out infinite 0.5s;
}

@keyframes twinkle {
  0%, 100% {
    opacity: 1;
    transform: scale(1) rotate(0deg);
  }
  50% {
    opacity: 0.6;
    transform: scale(1.2) rotate(15deg);
  }
}

.login-header {
  margin-bottom: 32px;
}

.login-icon {
  font-size: 80px;
  display: block;
  margin-bottom: 16px;
  animation: bouncePlayful 2s ease-in-out infinite;
  filter: drop-shadow(0 4px 8px rgba(255, 152, 0, 0.3));
}

@keyframes bouncePlayful {
  0%, 100% {
    transform: translateY(0) rotate(-5deg);
  }
  25% {
    transform: translateY(-8px) rotate(5deg);
  }
  50% {
    transform: translateY(-15px) rotate(-3deg);
  }
  75% {
    transform: translateY(-8px) rotate(3deg);
  }
}

.login-title {
  font-size: 36px;
  color: #5D4037;
  margin-bottom: 8px;
  font-family: var(--font-cartoon);
  text-shadow: 2px 2px 0 rgba(255, 183, 77, 0.5);
  letter-spacing: 2px;
}

.login-subtitle {
  font-size: 16px;
  color: #8D6E63;
  font-weight: 500;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.login-form .form-group {
  text-align: left;
  position: relative;
}

.login-form .form-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  color: #6D4C41;
  margin-bottom: 10px;
  font-weight: 600;
  font-family: var(--font-cartoon);
}

.login-form .form-label::before {
  content: '🏷️';
  font-size: 16px;
}

.login-form .form-group:last-of-type .form-label::before {
  content: '🔑';
}

/* 校园地图：小组与组员选择器。使用按钮而非原生复选框，保证教室触屏和华为浏览器都能可靠点击。 */
.campus-group-picker,
.campus-member-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 4px 0;
}

.campus-picker-option {
  appearance: none;
  -webkit-appearance: none;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin: 0;
  padding: 9px 15px;
  border: 2px solid #c4decd;
  border-radius: 12px;
  background: #fff;
  color: #234e42;
  cursor: pointer;
  font: inherit;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.25;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

.campus-picker-option:hover,
.campus-picker-option:focus-visible {
  border-color: #237956;
  box-shadow: 0 0 0 3px rgba(35, 121, 86, .16);
  outline: none;
}

.campus-picker-option.selected {
  border-color: #237956;
  background: #237956;
  color: #fff;
}

.campus-member-option {
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
}

.campus-member-check {
  display: inline-flex;
  width: 20px;
  height: 20px;
  align-items: center;
  justify-content: center;
  border: 2px solid #8bbfa5;
  border-radius: 6px;
  color: transparent;
  background: #fff;
  font-weight: 900;
}

.campus-member-option.selected .campus-member-check {
  border-color: #fff;
  color: #237956;
}

.login-input {
  width: 100%;
  padding: 16px 20px;
  font-size: 16px;
  border: 3px solid #FFECB3;
  border-radius: 20px;
  background: linear-gradient(180deg, #FFFDE7 0%, #FFFFFF 100%);
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  font-family: inherit;
  color: #5D4037;
}

.login-input:focus {
  outline: none;
  border-color: #FFB74D;
  background: white;
  box-shadow: 
    0 0 0 4px rgba(255, 183, 77, 0.3),
    0 4px 12px rgba(255, 152, 0, 0.2);
  transform: scale(1.02);
}

.login-input::placeholder {
  color: #BCAAA4;
}

.login-error {
  background: linear-gradient(135deg, #FFEBEE 0%, #FFCDD2 100%);
  color: #C62828;
  padding: 14px 18px;
  border-radius: 16px;
  font-size: 14px;
  text-align: center;
  font-weight: 500;
  border: 2px solid #EF9A9A;
  animation: shake 0.5s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-8px); }
  40% { transform: translateX(8px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}

.login-error.hidden {
  display: none;
}

.login-btn {
  width: 100%;
  padding: 18px;
  font-size: 20px;
  font-weight: 700;
  color: white;
  background: linear-gradient(135deg, #FFB74D 0%, #FF9800 50%, #F57C00 100%);
  border: none;
  border-radius: 24px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  font-family: var(--font-cartoon);
  box-shadow: 
    0 6px 20px rgba(255, 152, 0, 0.4),
    inset 0 2px 0 rgba(255, 255, 255, 0.3);
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
  letter-spacing: 1px;
  position: relative;
  overflow: hidden;
}

.login-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  100% {
    left: 100%;
  }
}

.login-btn:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 
    0 10px 30px rgba(255, 152, 0, 0.5),
    inset 0 2px 0 rgba(255, 255, 255, 0.4);
}

.login-btn:active {
  transform: translateY(-2px) scale(1);
}

/* 底部装饰文字 */
.login-form::after {
  content: '🎨 记录校园美好声音 🎵';
  display: block;
  margin-top: 24px;
  font-size: 14px;
  color: #BCAAA4;
  font-family: var(--font-cartoon);
}

/* 主应用容器 */
.main-app {
  width: 100%;
  min-height: 100vh;
}

.main-app.hidden {
  display: none;
}

/* 用户信息栏 */
.user-info-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  background: linear-gradient(135deg, #E3F2FD 0%, #BBDEFB 100%);
  border-bottom: 2px solid var(--primary-blue);
}

.user-info-bar .user-name {
  font-size: 14px;
  color: var(--text-primary);
  font-weight: 500;
}

.user-info-bar .user-name strong {
  color: #1976D2;
}

.user-bar-actions {
  display: flex;
  align-items: center;
  gap: 20px;  /* 增加按钮间距，防止误触 */
}

.help-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;  /* 增大按钮尺寸 */
  font-size: 16px;     /* 增大字体 */
  font-weight: 600;
  color: var(--primary-blue);
  background: white;
  border: 3px solid var(--primary-blue);  /* 加粗边框 */
  border-radius: var(--radius-md);        /* 更大圆角 */
  cursor: pointer;
  transition: all 0.3s ease;
  min-height: 48px;  /* 最小高度，方便触摸 */
  touch-action: manipulation;  /* 优化触摸响应 */
  pointer-events: auto;  /* 确保可点击 */
  z-index: 10;  /* 确保在其他元素之上 */
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0.1);
}

.help-btn:hover,
.help-btn:active {  /* 平板触摸使用active状态 */
  color: white;
  background: var(--primary-blue);
  transform: scale(1.05);
}

.logout-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;  /* 增大按钮尺寸 */
  font-size: 16px;     /* 增大字体 */
  font-weight: 600;
  color: var(--text-secondary);
  background: white;
  border: 3px solid #E0E0E0;  /* 加粗边框 */
  border-radius: var(--radius-md);        /* 更大圆角 */
  cursor: pointer;
  transition: all 0.3s ease;
  min-height: 48px;  /* 最小高度，方便触摸 */
  touch-action: manipulation;  /* 优化触摸响应 */
}

.logout-btn:hover,
.logout-btn:active {
  color: var(--primary-red);
  border-color: var(--primary-red);
  background: #FFEBEE;
}

.map-container {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-lg);
  margin-bottom: var(--spacing-lg);
  width: 100%;
  box-sizing: border-box;
}

.section-title {
  font-size: 1.6rem;
  font-weight: bold;
  color: var(--primary-purple);
  margin-bottom: var(--spacing-md);
  text-align: center;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}

.map-canvas {
  width: 100%;
  max-width: 100%;
  margin: 0 auto var(--spacing-md);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 4px solid var(--primary-green);
  background: var(--bg-color);
  position: relative;
  box-sizing: border-box;
}

/* 地图背景图片 */
.map-background {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
}

/* 区域覆盖层 */
.areas-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* 交互式区域 */
.interactive-area {
  position: absolute;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 3px solid transparent;
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  
  /* 禁止文本选中（兼容所有浏览器） */
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  
  /* 触摸设备支持 */
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
}

.interactive-area:hover {
  background: rgba(255, 255, 255, 0.3);
  border-color: var(--primary-blue);
  transform: scale(1.05);
  box-shadow: 0 0 20px rgba(100, 181, 246, 0.6);
}

.interactive-area.active {
  background: rgba(255, 235, 59, 0.4);
  border-color: var(--primary-red);
  transform: scale(1.08);
  box-shadow: 0 0 30px rgba(229, 115, 115, 0.7);
}

/* 子区域样式 */
.interactive-area.level-1 {
  border-width: 2px;
  border-color: rgba(255, 152, 0, 0.5);
  z-index: 10;
}

.interactive-area.level-1 .area-label {
  font-size: 0.9rem;
  padding: var(--spacing-xs) calc(var(--spacing-sm) * 0.8);
  background: linear-gradient(135deg, #FFE0B2, #FFCC80);
}

.interactive-area.level-2 {
  border-width: 1px;
  border-color: rgba(156, 39, 176, 0.5);
  z-index: 11;
}

.interactive-area.level-2 .area-label {
  font-size: 0.8rem;
  padding: var(--spacing-xs) calc(var(--spacing-sm) * 0.6);
  background: linear-gradient(135deg, #E1BEE7, #CE93D8);
}

/* 区域标签 */
.area-label {
  background: linear-gradient(135deg, var(--primary-yellow), #FFE082);
  color: var(--text-primary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-md);
  font-weight: bold;
  font-size: 1rem;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
  box-shadow: var(--shadow-sm);
  border: 2px solid var(--primary-red);
  animation: bounceIn 0.5s ease-out;
  transition: opacity 0.3s ease, transform 0.3s ease;
  user-select: none !important;  /* 防止双击选中文本 */
  -webkit-user-select: none !important;  /* Safari/Chrome */
  -moz-user-select: none !important;  /* Firefox */
  -ms-user-select: none !important;  /* IE/Edge */
  -webkit-touch-callout: none;  /* iOS Safari */
  -webkit-tap-highlight-color: transparent;  /* 移除移动端点击高亮 */
  pointer-events: none !important;  /* 关键：让鼠标事件穿透到父元素 */
}

.area-label::selection {
  background: transparent;
}

/* 编辑模式的标签始终显示 */
#editModeView .area-label {
  opacity: 1;
  transform: scale(1);
  cursor: pointer;
  user-select: none;  /* 防止双击选中文本 */
  -webkit-user-select: none;  /* Safari/Chrome */
  -moz-user-select: none;  /* Firefox */
  -ms-user-select: none;  /* IE/Edge */
}

#editModeView .area-label:hover {
  transform: scale(1.05);
  box-shadow: 0 0 10px rgba(255, 152, 0, 0.5);
}

/* 展示模式的标签默认隐藏 */
#showModeView .area-label {
  opacity: 0;
  transform: scale(0.8);
  pointer-events: none;
}

/* 展示模式中悬停时显示标签 */
#showModeView .interactive-area:hover .area-label {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
}

/* 展示模式中选中状态也显示标签 */
#showModeView .interactive-area.active .area-label {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
}

@keyframes bounceIn {
  0% {
    opacity: 0;
    transform: scale(0.5);
  }
  60% {
    transform: scale(1.1);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

/* ====================
   Area List - 区域列表
   ==================== */

.area-list-container {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-md);
}

.list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
  gap: var(--spacing-sm);
}

.list-title {
  font-size: 1.4rem;
  font-weight: bold;
  color: var(--primary-blue);
  margin: 0;
  flex-shrink: 0;
}

.area-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.area-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: linear-gradient(135deg, #E3F2FD, #BBDEFB);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
  border: 3px solid transparent;
  user-select: none; /* 防止双击时选中文本 */
}

.area-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-blue);
}

.area-item.active {
  background: linear-gradient(135deg, var(--primary-yellow), #FFE082);
  border-color: var(--primary-red);
  transform: scale(1.02);
}

/* 子区域层级缩进 */
.area-item.level-1 {
  margin-left: var(--spacing-lg);
  background: linear-gradient(135deg, #FFF3E0, #FFE0B2);
}

.area-item.level-2 {
  margin-left: var(--spacing-xl);
  background: linear-gradient(135deg, #F3E5F5, #E1BEE7);
}

/* 展开/折叠按钮 */
.expand-collapse-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  min-width: 36px;
  font-size: 1.1rem;
  font-weight: bold;
  background: rgba(255, 255, 255, 0.5);
  border: 2px solid rgba(0, 0, 0, 0.1);
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  padding: 0;
  line-height: 1;
  user-select: none;
  -webkit-user-select: none;
}

.expand-collapse-btn:hover {
  background: var(--primary-blue);
  color: white;
  border-color: var(--primary-blue);
}

.expand-collapse-btn:active,
.expand-collapse-btn.expanded {
  background: var(--primary-blue);
  color: white;
  border-color: var(--primary-blue);
}

.expand-collapse-btn.invisible {
  opacity: 0;
  pointer-events: none;
}

/* 子区域列表容器 */
.children-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  overflow: hidden;
}

.children-container.collapsed {
  display: none;
}

.area-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.area-name {
  font-size: 1.2rem;
  font-weight: bold;
  color: var(--text-primary);
  flex: 1;
}

/* 区域列表：名称、操作与完成度分成两行，避免新增区域后互相挤压。 */
.area-item-main { flex:1; min-width:0; display:flex; flex-direction:column; gap:4px; }
.area-item-summary { width:100%; min-width:0; display:flex; align-items:center; gap:var(--spacing-sm); }
.area-item-summary .area-name { min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.area-item-summary .audio-indicator { flex:0 0 auto; }

/* 子区域图标 */
.add-subarea-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  min-width: 36px;
  font-size: 1.2rem;
  background: linear-gradient(135deg, #81C784, #66BB6A);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition: background 0.3s ease, box-shadow 0.3s ease;
  box-shadow: var(--shadow-sm);
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  padding: 0;
  user-select: none;
  -webkit-user-select: none;
}

.add-subarea-btn:hover {
  background: linear-gradient(135deg, #66BB6A, #43A047);
  box-shadow: var(--shadow-md);
}

.audio-indicator {
  font-size: 1.3rem;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.5);
  min-width: 30px;
  text-align: center;
}

.audio-indicator.has-audio {
  background: linear-gradient(135deg, #FFD54F, #FFC107);
  animation: sparkle 2s ease-in-out infinite;
}

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

.edit-area-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #90CAF9, #64B5F6);
  border: 2px solid white;
  border-radius: 50%;
  font-size: 1.1rem;
  cursor: pointer;
  transition: background 0.3s ease, box-shadow 0.3s ease;
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  padding: 0;
  user-select: none;
  -webkit-user-select: none;
}

.edit-area-btn:hover {
  background: linear-gradient(135deg, #64B5F6, #42A5F5);
  box-shadow: var(--shadow-md);
}

.edit-area-btn:active {
  transform: scale(1.05);
}

.edit-area-btn:focus-visible,
.add-subarea-btn:focus-visible {
  outline: 3px solid rgba(25, 118, 210, .55);
  outline-offset: 2px;
}

/* ====================
   Hint Container - 提示信息
   ==================== */ */

.hint-container {
  background: linear-gradient(135deg, #FFF3E0, #FFE0B2);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  text-align: center;
  margin-top: var(--spacing-md);
  box-shadow: var(--shadow-sm);
}

.hint-text {
  font-size: 1.2rem;
  color: var(--text-primary);
  font-weight: bold;
}

/* ====================
   Add Area Button - 添加区域按钮
   ==================== */

.add-area-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-cartoon);
  font-size: 1.2rem;
  font-weight: bold;
  color: var(--text-light);
  background: linear-gradient(135deg, var(--primary-purple), #9C27B0);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-md);
  border: 3px solid transparent;
  white-space: nowrap;
}

.add-area-btn:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: var(--shadow-lg);
  background: linear-gradient(135deg, #AB47BC, #7B1FA2);
  border-color: var(--primary-yellow);
}

.add-area-btn:active {
  transform: translateY(-1px) scale(1);
  box-shadow: var(--shadow-sm);
}

.btn-icon {
  font-size: 1.5rem;
}

.btn-text {
  font-size: 1.3rem;
}

/* ====================
   Modal - 弹窗样式
   ==================== */

.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  animation: fadeIn 0.3s ease;
}

.modal-overlay.active {
  display: flex;
}

.modal-container {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Modal Header */
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  background: linear-gradient(135deg, var(--primary-blue), #1976D2);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  border-bottom: 4px solid var(--primary-yellow);
}

.modal-title {
  margin: 0;
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--text-light);
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

.modal-close-btn {
  width: 40px;
  height: 40px;
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--text-light);
  background: rgba(255, 255, 255, 0.3);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close-btn:hover {
  background: rgba(255, 255, 255, 0.5);
  transform: rotate(90deg);
}

/* Modal Body */
.modal-body {
  padding: var(--spacing-md);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  font-size: 1.2rem;
  font-weight: bold;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.form-input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 1.1rem;
  font-family: var(--font-cartoon);
  border: 3px solid #E0E0E0;
  border-radius: var(--radius-md);
  background: #FAFAFA;
  transition: all 0.3s ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-blue);
  background: white;
  box-shadow: 0 0 0 3px rgba(100, 181, 246, 0.2);
}

.form-hint {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: var(--spacing-xs);
}

/* Color Selector */
.color-selector {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-sm);
}

.color-option {
  width: 100%;
  aspect-ratio: 1;
  border: 3px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.color-option:hover {
  transform: scale(1.1);
  border-color: var(--primary-blue);
  box-shadow: var(--shadow-md);
}

.color-option.selected {
  transform: scale(1.15);
  border-color: var(--primary-red);
  box-shadow: 0 0 0 4px rgba(229, 115, 115, 0.3), var(--shadow-md);
}

/* Modal Footer */
.modal-footer {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  border-top: 2px solid #E0E0E0;
}

.modal-btn {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 1.2rem;
  font-family: var(--font-cartoon);
  font-weight: bold;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.modal-btn-cancel {
  background: linear-gradient(135deg, #BDBDBD, #9E9E9E);
  color: var(--text-light);
}

.modal-btn-cancel:hover {
  background: linear-gradient(135deg, #9E9E9E, #757575);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.modal-btn-confirm {
  background: linear-gradient(135deg, var(--primary-green), #4CAF50);
  color: var(--text-light);
}

.modal-btn-confirm:hover {
  background: linear-gradient(135deg, #4CAF50, #388E3C);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.modal-btn-delete {
  background: linear-gradient(135deg, var(--primary-red), #D32F2F);
  color: var(--text-light);
}

.modal-btn-delete:hover {
  background: linear-gradient(135deg, #D32F2F, #C62828);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ====================
   Audio Upload Styles - 音频上传样式
   ==================== */

.audio-upload-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
  background: linear-gradient(135deg, #FFF9C4, #FFEB3B);
  border: 4px dashed var(--primary-blue);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all 0.3s ease;
  min-height: 140px;
  box-shadow: var(--shadow-md);
}

.audio-upload-area:hover {
  background: linear-gradient(135deg, #FFF59D, #FFEE58);
  border-color: var(--primary-green);
  transform: translateY(-3px) scale(1.02);
  box-shadow: var(--shadow-lg);
}

.audio-upload-area:active {
  transform: translateY(-1px) scale(1);
  box-shadow: var(--shadow-sm);
}

.upload-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
}

.upload-icon {
  font-size: 3.5rem;
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.upload-text {
  font-size: 1.3rem;
  font-weight: bold;
  color: var(--text-dark);
  margin-top: var(--spacing-xs);
}

.upload-hint {
  font-size: 1rem;
  color: #616161;
  font-weight: 500;
  margin-top: var(--spacing-xs);
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: var(--radius-sm);
}

.audio-preview-area {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.audio-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: linear-gradient(135deg, #E3F2FD, #BBDEFB);
  border-radius: var(--radius-md);
  border: 2px solid var(--primary-blue);
}

.audio-icon {
  font-size: 1.5rem;
}

.audio-name {
  flex: 1;
  font-size: 0.95rem;
  font-weight: bold;
  color: var(--text-dark);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.remove-audio-btn {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-red);
  color: white;
  border: none;
  border-radius: 50%;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  flex-shrink: 0;
}

.remove-audio-btn:hover {
  background: #C62828;
  transform: scale(1.1);
}

.audio-player {
  width: 100%;
  height: 40px;
  border-radius: var(--radius-md);
}

/* ====================
   Responsive Design - 响应式布局
   ==================== */

/* Shake Animation for Input Error */
@keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  10%, 30%, 50%, 70%, 90% {
    transform: translateX(-5px);
  }
  20%, 40%, 60%, 80% {
    transform: translateX(5px);
  }
}

/* ====================
   Drawing Tool Selector - 绘制工具选择器
   ==================== */

.draw-tool-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-sm);
}

.draw-tool-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm);
  border: 3px solid #E0E0E0;
  border-radius: var(--radius-md);
  background: #FAFAFA;
  cursor: pointer;
  transition: all 0.3s ease;
}

.draw-tool-option:hover {
  background: white;
  border-color: var(--primary-blue);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.draw-tool-option.selected {
  background: linear-gradient(135deg, var(--primary-yellow), #FFE082);
  border-color: var(--primary-red);
  transform: translateY(-3px) scale(1.05);
  box-shadow: var(--shadow-md);
}

.tool-icon {
  font-size: 2rem;
}

.tool-name {
  font-size: 1rem;
  font-weight: bold;
  color: var(--text-primary);
}

/* ====================
   Drawing Toolbar - 绘制工具栏
   ==================== */

.drawing-toolbar {
  background: linear-gradient(135deg, #FFF3E0, #FFE0B2);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  border: 3px solid var(--primary-yellow);
  box-shadow: var(--shadow-md);
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.drawing-toolbar.hidden {
  display: none;
}

.toolbar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid rgba(0, 0, 0, 0.1);
}

.toolbar-title {
  font-size: 1.3rem;
  font-weight: bold;
  color: var(--text-primary);
}

.toolbar-btn {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.95rem;
  font-family: var(--font-cartoon);
  font-weight: bold;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.toolbar-btn-cancel {
  background: linear-gradient(135deg, #FF8A65, #E57373);
  color: var(--text-light);
}

.toolbar-btn-cancel:hover {
  background: linear-gradient(135deg, #E57373, #D32F2F);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.toolbar-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.current-tool-info {
  font-size: 1.1rem;
  color: var(--text-primary);
}

.current-tool-info strong {
  color: var(--primary-purple);
}

.toolbar-hint {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin: 0;
}

/* ====================
   Drawing Layer - 绘制层
   ==================== */

.drawing-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 100;
}

.drawing-layer.hidden {
  display: none;
}

.drawing-layer.active {
  pointer-events: auto;
  cursor: crosshair;
}

/* 绘制的区域样式 */
.drawn-area {
  position: absolute;
  pointer-events: none;
  border: 3px dashed var(--primary-red);
  background: rgba(255, 235, 59, 0.4);
  transition: all 0.3s ease;
}

.drawn-area.preview {
  border-style: solid;
  background: rgba(255, 235, 59, 0.5);
}

.drawn-area.completed {
  border-style: solid;
  background: rgba(100, 181, 246, 0.4);
}

/* 多边形顶点 */
.polygon-vertex {
  position: absolute;
  width: 12px;
  height: 12px;
  background: var(--primary-red);
  border: 2px solid white;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  box-shadow: var(--shadow-sm);
}

/* 多边形辅助线 */
.polygon-line {
  position: absolute;
  height: 3px;
  background: var(--primary-blue);
  pointer-events: none;
  transform-origin: left center;
}

/* 平板横屏 (768px - 1024px) */
@media (max-width: 1024px) {
  .header {
    padding: var(--spacing-xs) var(--spacing-sm);
  }
  
  .app-title {
    font-size: 1.5rem;
  }
  
  .mode-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 1rem;
    min-width: 100px;
  }
  
  .map-container {
    padding: var(--spacing-sm);
  }
  
  .section-title {
    font-size: 1.4rem;
  }
  
  .list-header {
    flex-direction: column;
    align-items: stretch;
  }
  
  .add-area-btn {
    width: 100%;
  }
}

/* 平板竖屏 (600px - 767px) */
@media (max-width: 767px) {
  .header {
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-xs);
  }
  
  .app-title {
    font-size: 1.3rem;
    text-align: center;
  }
  
  .mode-switch-container {
    justify-content: center;
  }
  
  .mode-btn {
    flex: 1;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.95rem;
    min-width: 80px;
  }
  
  .view-container {
    padding: var(--spacing-sm);
  }
  
  .map-container {
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
  }
  
  .section-title {
    font-size: 1.2rem;
  }
  
  .map-canvas {
    max-width: 100%;
  }
  
  .area-list {
    grid-template-columns: 1fr;
  }
  
  .area-item {
    padding: var(--spacing-xs) var(--spacing-sm);
  }
  
  .area-icon {
    font-size: 1.3rem;
  }
  
  .area-name {
    font-size: 1.1rem;
  }
}

/* 小屏手机 (最大 599px) */
@media (max-width: 599px) {
  .app-title {
    font-size: 1.1rem;
  }
  
  .mode-btn {
    font-size: 0.9rem;
    padding: 10px 16px;
  }
  
  .section-title {
    font-size: 1.1rem;
  }
  
  .map-canvas {
    border-width: 3px;
  }
  
  .area-list-container {
    padding: var(--spacing-sm);
  }
  
  .list-title {
    font-size: 1.1rem;
  }
  
  .hint-text {
    font-size: 1rem;
  }
}

/* ====================
   Utility Classes - 工具类
   ==================== */

.hidden {
  display: none !important;
}

.fade-in {
  animation: fadeIn 0.3s ease-in-out;
}

/* ====================
   Editing Mode Styles - 编辑模式样式（步骤4）
   ==================== */

/* 编辑工具栏 */
.editing-toolbar {
  background: linear-gradient(135deg, #E1F5FE, #B3E5FC);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  border: 3px solid var(--primary-blue);
  box-shadow: var(--shadow-md);
  animation: slideDown 0.3s ease;
}

.editing-toolbar.hidden {
  display: none;
}

.editing-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid rgba(0, 0, 0, 0.1);
}

.editing-title {
  font-size: 1.3rem;
  font-weight: bold;
  color: var(--primary-blue);
}

.editing-title strong {
  color: var(--text-primary);
}

.editing-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

/* 名称编辑组 */
.edit-name-group {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: white;
  border-radius: var(--radius-sm);
  border: 2px solid #E0E0E0;
}

.edit-label {
  font-size: 1rem;
  font-weight: bold;
  color: var(--text-primary);
  white-space: nowrap;
}

.edit-name-input {
  flex: 1;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 1rem;
  font-family: var(--font-cartoon);
  border: 2px solid #E0E0E0;
  border-radius: var(--radius-sm);
  background: white;
  color: var(--text-primary);
  transition: all 0.3s ease;
}

.edit-name-input:focus {
  outline: none;
  border-color: var(--primary-blue);
  background: #F5F5F5;
  box-shadow: 0 0 0 3px rgba(100, 181, 246, 0.2);
}

.edit-name-input::placeholder {
  color: #BDBDBD;
}

/* 编辑按钮组 */
.edit-buttons-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

/* 编辑工具组 */
.edit-tools-group {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: white;
  border-radius: var(--radius-sm);
  border: 2px solid #E0E0E0;
}

.edit-tools-label {
  font-size: 0.95rem;
  font-weight: bold;
  color: var(--text-secondary);
  white-space: nowrap;
}

.edit-tool-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  border: 2px solid #E0E0E0;
  border-radius: var(--radius-sm);
  background: #FAFAFA;
  cursor: pointer;
  transition: all 0.3s ease;
}

.edit-tool-btn:hover {
  background: white;
  border-color: var(--primary-blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.edit-tool-btn.selected {
  background: linear-gradient(135deg, var(--primary-yellow), #FFE082);
  border-color: var(--primary-red);
  transform: translateY(-2px) scale(1.05);
  box-shadow: var(--shadow-sm);
}

.edit-tool-btn .tool-icon {
  font-size: 1.3rem;
}

.edit-tool-btn .tool-name {
  font-size: 0.9rem;
  font-weight: bold;
  color: var(--text-primary);
}

/* ====================
   区域介绍音频样式
   ==================== */

/* 区域音频上传区域 */
.area-audio-upload-area {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
  border: 3px dashed var(--primary-blue);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #E3F2FD 0%, #BBDEFB 100%);
  cursor: pointer;
  transition: all 0.3s ease;
}

.area-audio-upload-area:hover {
  background: linear-gradient(135deg, #BBDEFB 0%, #64B5F6 100%);
  border-color: var(--primary-blue);
  transform: scale(1.02);
}

.audio-upload-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
}

.audio-upload-icon {
  font-size: 3rem;
}

.audio-upload-text {
  font-size: 1.2rem;
  font-weight: bold;
  color: var(--text-primary);
}

.audio-upload-hint {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* 区域音频预览 */
.area-audio-preview {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%);
  border: 3px solid var(--primary-green);
  border-radius: var(--radius-md);
}

.audio-preview-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.audio-preview-icon {
  font-size: 2rem;
}

.audio-preview-name {
  font-size: 1.1rem;
  font-weight: bold;
  color: var(--text-primary);
  word-break: break-all;
}

.audio-preview-controls {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.audio-preview-play-btn,
.audio-preview-remove-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 1rem;
  font-family: var(--font-cartoon);
  font-weight: bold;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.3s ease;
}

.audio-preview-play-btn {
  background: linear-gradient(135deg, var(--primary-blue), #42A5F5);
  color: white;
  flex: 1;
}

.audio-preview-play-btn:hover {
  background: linear-gradient(135deg, #42A5F5, #1E88E5);
  transform: scale(1.05);
}

.audio-preview-remove-btn {
  background: linear-gradient(135deg, var(--primary-red), #E53935);
  color: white;
}

.audio-preview-remove-btn:hover {
  background: linear-gradient(135deg, #E53935, #C62828);
  transform: scale(1.05);
}

/* 详情页音频播放器 */
.detail-audio-container {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  background: linear-gradient(135deg, #E3F2FD 0%, #BBDEFB 100%);
  border: 3px solid var(--primary-blue);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.detail-audio-play-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  font-size: 1.2rem;
  font-family: var(--font-cartoon);
  font-weight: bold;
  color: white;
  background: linear-gradient(135deg, var(--primary-blue), #42A5F5);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s ease;
}

.detail-audio-play-btn:hover {
  background: linear-gradient(135deg, #42A5F5, #1E88E5);
  transform: scale(1.02);
}

.detail-audio-play-btn:active {
  transform: scale(0.98);
}

.detail-audio-play-btn.playing {
  background: linear-gradient(135deg, var(--primary-orange), #FF9800);
}

.detail-audio-play-btn.playing .audio-btn-icon {
  content: '⏸️';
}

.audio-btn-icon {
  font-size: 1.5rem;
}

.audio-btn-text {
  flex: 1;
}

/* 音频进度条 */
.detail-audio-progress {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.audio-progress-bar {
  flex: 1;
  height: 8px;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 4px;
  overflow: hidden;
}

.audio-progress-fill {
  height: 100%;
  background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
  border-radius: 4px;
  width: 0%;
  transition: width 0.1s linear;
}

.audio-time {
  font-size: 0.9rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

/* 编辑操作按钮组 */
.edit-actions-group {
  display: flex;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: white;
  border-radius: var(--radius-sm);
  border: 2px solid #E0E0E0;
}

.edit-btn {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 1rem;
  font-family: var(--font-cartoon);
  font-weight: bold;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.edit-btn-save {
  background: linear-gradient(135deg, var(--primary-green), #66BB6A);
  color: var(--text-light);
}

.edit-btn-save:hover {
  background: linear-gradient(135deg, #66BB6A, #43A047);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.edit-btn-cancel {
  background: linear-gradient(135deg, #FF8A65, #E57373);
  color: var(--text-light);
}

.edit-btn-cancel:hover {
  background: linear-gradient(135deg, #E57373, #D32F2F);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* 编辑模式下的区域高亮样式 */
.interactive-area.editing {
  border: 4px solid var(--primary-blue);
  background: rgba(100, 181, 246, 0.3);
  box-shadow: 0 0 20px rgba(100, 181, 246, 0.6);
  z-index: 50;
  animation: editingPulse 2s ease-in-out infinite;
}

@keyframes editingPulse {
  0%, 100% {
    box-shadow: 0 0 20px rgba(100, 181, 246, 0.6);
  }
  50% {
    box-shadow: 0 0 30px rgba(100, 181, 246, 0.8);
  }
}

/* 编辑模式下区域标签样式 */
#editModeView .area-label {
  opacity: 1;
  transform: scale(1);
  cursor: pointer;  /* 虽然pointer-events: none，但cursor样式可以保留 */
  transition: all 0.3s ease;
  /* pointer-events: none 由基础样式继承，这里不需要重复 */
}

#editModeView .area-label:hover {
  transform: scale(1.05);
  box-shadow: 0 0 10px rgba(255, 152, 0, 0.5);
}

/* 编辑模式下区域元素的hover效果 - 用于提示用户可以交互 */
#editModeView .interactive-area:hover {
  z-index: 10;
}

/* 编辑模式下的标签提示 */
.interactive-area.editing .area-label {
  background: linear-gradient(135deg, var(--primary-yellow), #FFE082);
  color: var(--text-primary);
  font-weight: bold;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
}
/* 编辑操作按钮组 */
.edit-actions-group {
  display: flex;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: white;
  border-radius: var(--radius-sm);
}

.edit-btn {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 1rem;
  font-family: var(--font-cartoon);
  font-weight: bold;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.edit-btn-save {
  background: linear-gradient(135deg, var(--primary-green), #66BB6A);
  color: var(--text-light);
}

.edit-btn-save:hover {
  background: linear-gradient(135deg, #66BB6A, #43A047);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.edit-btn-delete {
  background: linear-gradient(135deg, #FF8A65, #FF6B6B);
  color: var(--text-light);
}

.edit-btn-delete:hover {
  background: linear-gradient(135deg, #FF6B6B, #FF5252);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.edit-btn-cancel {
  background: linear-gradient(135deg, #FF8A65, #E57373);
  color: var(--text-light);
}

.edit-btn-cancel:hover {
  background: linear-gradient(135deg, #E57373, #D32F2F);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}


/* ====================
   Area Info Card - 区域信息卡片（前台展示模式）
   ==================== */

.area-info-card {
  position: fixed;
  background: linear-gradient(135deg, #FFFFFF, #FAFAFA);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  z-index: 100;
  min-width: 320px;
  max-width: 400px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  border: 3px solid var(--primary-blue);
}

.area-info-card.active {
  opacity: 1;
  pointer-events: auto;
}

.area-info-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.area-info-icon {
  font-size: 2.5rem;
  filter: drop-shadow(2px 2px 4px rgba(0, 0, 0, 0.2));
}

.area-info-title {
  font-size: 1.8rem;
  font-weight: bold;
  color: var(--primary-purple);
  margin: 0;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}

.area-info-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  line-height: 1.5;
}

.enter-area-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-cartoon);
  font-size: 1.3rem;
  font-weight: bold;
  color: var(--text-light);
  background: linear-gradient(135deg, var(--primary-green), #4CAF50);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-md);
}

.enter-area-btn:hover {
  background: linear-gradient(135deg, #4CAF50, #388E3C);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 40px rgba(76, 175, 80, 0.4);
}

.enter-area-btn:active {
  transform: translateY(-1px) scale(1);
  box-shadow: var(--shadow-sm);
}

.enter-area-btn .btn-arrow {
  font-size: 1.5rem;
  transition: transform 0.3s ease;
}

.enter-area-btn:hover .btn-arrow {
  transform: translateX(5px);
}

/* ====================
   子区域列表样式
   ==================== */

.sub-area-list {
  margin: var(--spacing-sm) 0;
  background: rgba(255, 255, 255, 0.8);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.sub-area-list-header {
  display: flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  background: rgba(100, 181, 246, 0.15);
  border-bottom: 1px solid rgba(100, 181, 246, 0.3);
}

.sub-area-list-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary-blue);
}

.sub-area-list-content {
  padding: var(--spacing-xs);
  max-height: 200px;
  overflow-y: auto;
}

.sub-area-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) var(--spacing-sm);
  margin-bottom: var(--spacing-xs);
  background: linear-gradient(135deg, #E3F2FD, #BBDEFB);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  border: 2px solid transparent;
}

.sub-area-item:last-child {
  margin-bottom: 0;
}

.sub-area-item:hover {
  background: linear-gradient(135deg, #BBDEFB, #90CAF9);
  border-color: var(--primary-blue);
  transform: translateX(5px);
}

.sub-area-item:active {
  transform: translateX(2px);
}

.sub-area-item-icon {
  font-size: 1.2rem;
}

.sub-area-item-name {
  flex: 1;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-dark);
}

.sub-area-item-indicator {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.sub-area-item-indicator.has-audio {
  color: var(--primary-green);
}

.sub-area-item-indicator.has-images {
  color: var(--primary-orange);
}

/* 编辑模式子区域项 */
.sub-area-item.edit-mode {
  background: linear-gradient(135deg, #FFF8E1, #FFECB3);
}

.sub-area-item.edit-mode:hover {
  background: linear-gradient(135deg, #FFECB3, #FFE082);
  border-color: var(--primary-orange);
}

/* 子区域列表为空时的提示 */
.sub-area-list-empty {
  padding: var(--spacing-sm);
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-style: italic;
}

/* ====================
   Area Detail View - 区域详情页
   ==================== */

#areaDetailView {
  display: none;
  animation: slideUp 0.4s ease-in-out;
}

#areaDetailView.active {
  display: block;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.detail-container {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-lg);
  max-width: 900px;
  margin: 0 auto;
}

/* 返回按钮 */
.back-to-map-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-cartoon);
  font-size: 1.1rem;
  font-weight: bold;
  color: var(--text-primary);
  background: linear-gradient(135deg, #E0E0E0, #BDBDBD);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--spacing-lg);
  width: fit-content;
}

.back-to-map-btn:hover {
  background: linear-gradient(135deg, #BDBDBD, #9E9E9E);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.back-to-map-btn .btn-arrow {
  font-size: 1.3rem;
}

/* 详情头部 */
.detail-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 3px solid #E0E0E0;
}

.detail-icon {
  font-size: 4rem;
  filter: drop-shadow(3px 3px 6px rgba(0, 0, 0, 0.2));
}

.detail-title {
  font-size: 2.5rem;
  font-weight: bold;
  color: var(--primary-purple);
  margin: 0;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

/* 详情主体 */
.detail-body {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.detail-section {
  background: linear-gradient(135deg, #FAFAFA, #F5F5F5);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  border: 2px solid #E0E0E0;
}

.detail-section-title {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-blue);
  margin: 0 0 var(--spacing-sm) 0;
}

.detail-description {
  font-size: 1.2rem;
  line-height: 1.8;
  color: var(--text-primary);
  margin: 0;
}

/* 音频容器 */
.detail-audio-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.detail-audio-player {
  width: 100%;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.detail-no-audio,
.detail-no-images {
  font-size: 1.1rem;
  color: var(--text-secondary);
  text-align: center;
  padding: var(--spacing-md);
  font-style: italic;
}

/* 图片容器 - 默认为flex布局（支持单图大图翻页模式） */
.detail-images-container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 200px;
}

/* 单张图片容器（展示模式翻页用） */
.detail-single-image {
  position: relative;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 60vh;  /* 平板大图：至少占60%视口高度 */
  padding: var(--spacing-sm);
}

.detail-single-image img {
  max-width: 100%;
  max-height: 70vh;  /* 平板大图：最大70%视口高度 */
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease;
  cursor: pointer;
}

.detail-single-image img:hover,
.detail-single-image img:active {
  transform: scale(1.02);
  box-shadow: var(--shadow-lg);
}

/* 图片翻页控制 */
.detail-image-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
  padding: var(--spacing-sm);
}

.pagination-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--primary-blue);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.pagination-btn:hover:not(.disabled) {
  background: #1976D2;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.pagination-btn:active:not(.disabled) {
  transform: translateY(0);
}

.pagination-btn.disabled {
  background: #BDBDBD;
  cursor: not-allowed;
  opacity: 0.6;
}

.pagination-btn.disabled:hover {
  transform: none;
  box-shadow: none;
}

.pagination-counter {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-dark);
  min-width: 60px;
  text-align: center;
}

.detail-image {
  width: 100%;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease;
  cursor: pointer;
}

.detail-image:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-lg);
}

/* 展示模式下区域的hover效果 */
#showModeView .interactive-area:hover {
  cursor: pointer;
  filter: brightness(1.1);
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
}

/* 展示模式下区域选中效果 */
#showModeView .interactive-area.selected {
  border: 4px solid var(--primary-green);
  background: rgba(129, 199, 132, 0.4);
  box-shadow: 0 0 25px rgba(129, 199, 132, 0.6);
  animation: selectedPulse 2s ease-in-out infinite;
}

@keyframes selectedPulse {
  0%, 100% {
    box-shadow: 0 0 25px rgba(129, 199, 132, 0.6);
  }
  50% {
    box-shadow: 0 0 35px rgba(129, 199, 132, 0.8);
  }
}

/* 展示模式下区域标签样式 */
#showModeView .area-label {
  opacity: 1;
  transform: scale(1);
  pointer-events: none;  /* 让事件穿透到父元素 */
  transition: all 0.3s ease;
}

#showModeView .interactive-area:hover .area-label {
  transform: scale(1.1);
  box-shadow: 0 0 15px rgba(255, 152, 0, 0.6);
}

/* ====================
   区域编辑详情页样式
   ==================== */

#areaEditDetailView {
  display: none;
  animation: slideUp 0.4s ease-in-out;
}

#areaEditDetailView.active {
  display: block;
}

.edit-detail-body {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.edit-section {
  background: linear-gradient(135deg, #FAFAFA, #F5F5F5);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  border: 2px solid #E0E0E0;
}

.edit-textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 1.1rem;
  font-family: var(--font-cartoon);
  border: 3px solid #E0E0E0;
  border-radius: var(--radius-md);
  background: #FAFAFA;
  transition: all 0.3s ease;
  resize: vertical;
  min-height: 120px;
}

.edit-textarea:focus {
  outline: none;
  border-color: var(--primary-blue);
  background: white;
  box-shadow: 0 0 0 3px rgba(100, 181, 246, 0.2);
}

.edit-textarea::placeholder {
  color: var(--text-secondary);
  font-style: italic;
}

/* 图片上传按钮 */
.image-upload-area {
  display: inline-flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  background: linear-gradient(135deg, #E3F2FD, #BBDEFB);
  border: 2px solid var(--primary-blue);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
  min-height: auto;
}

.image-upload-area:hover {
  background: linear-gradient(135deg, #BBDEFB, #90CAF9);
  border-color: var(--primary-blue);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.image-upload-area .upload-placeholder {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 8px;
}

.image-upload-area .upload-icon {
  font-size: 1.4rem;
  animation: none;
}

.image-upload-area .upload-text {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary-blue);
}

.image-upload-area .upload-hint {
  display: none;
}

.ai-future-image-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 14px;
  padding: 14px 16px;
  border-radius: 16px;
  color: #244766;
  background: linear-gradient(135deg, #eef9ff, #eef6ff);
  border: 1px solid #b9dcff;
}

.ai-future-image-copy { display: grid; gap: 4px; }
.ai-future-image-copy strong { color: #3169bd; }
.ai-future-image-copy span { font-size: 13px; line-height: 1.5; }
.ai-future-generate-btn {
  flex: 0 0 auto;
  border: 0;
  border-radius: 999px;
  padding: 10px 18px;
  cursor: pointer;
  color: #fff;
  font-weight: 700;
  background: linear-gradient(135deg, #7464db, #4689e7);
  box-shadow: 0 6px 14px rgba(74, 111, 209, .24);
}
.ai-future-generate-btn:disabled { cursor: wait; opacity: .7; }

@media (max-width: 560px) {
  .ai-future-image-panel { align-items: stretch; flex-direction: column; }
  .ai-future-generate-btn { width: 100%; }
}

.image-preview-area {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.image-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  aspect-ratio: 4/3;
}

.image-item:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}

.image-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* 编辑模式照片左上角的小喇叭图标 */
.image-item .edit-sound-icon {
  position: absolute;
  top: 8px;
  left: 8px;
  right: auto;
  width: 40px;
  height: 40px;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(100, 181, 246, 0.95);
  border: 3px solid #64B5F6;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  z-index: 10;
  user-select: none;
}

.image-item .edit-sound-icon:hover {
  background: rgba(66, 165, 245, 1);
  border-color: #42A5F5;
  transform: scale(1.1);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
}

.image-item .edit-sound-icon.has-audio {
  background: rgba(76, 175, 80, 0.95);
  border-color: #4CAF50;
}

.image-item .edit-sound-icon.has-audio:hover {
  background: rgba(56, 142, 60, 1);
  border-color: #388E3C;
}

.image-item .edit-sound-icon:active {
  transform: scale(0.95);
}

.image-item .remove-image-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  left: auto;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(244, 67, 54, 0.9);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
  z-index: 10;
  font-size: 18px;
  font-weight: bold;
}

.image-item .remove-image-btn:hover {
  background: rgba(211, 47, 47, 1);
  transform: scale(1.1);
  box-shadow: var(--shadow-md);
}

.edit-actions {
  display: flex;
  justify-content: center;
  padding: var(--spacing-md) 0;
}

.save-edit-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  font-family: var(--font-cartoon);
  font-size: 1.4rem;
  font-weight: bold;
  color: var(--text-light);
  background: linear-gradient(135deg, var(--primary-green), #4CAF50);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-md);
  min-width: 200px;
}

.save-edit-btn:hover {
  background: linear-gradient(135deg, #4CAF50, #388E3C);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 40px rgba(76, 175, 80, 0.4);
}

.save-edit-btn:active {
  transform: translateY(-1px) scale(1);
  box-shadow: var(--shadow-sm);
}

.save-edit-btn .btn-icon {
  font-size: 1.6rem;
}

/* ====================
   照片灯箱样式
   ==================== */

.image-lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.image-lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: white;
  background: rgba(255, 255, 255, 0.2);
  border: 3px solid rgba(255, 255, 255, 0.4);
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 2100;
}

.lightbox-close-btn:hover {
  background: rgba(255, 87, 87, 0.9);
  border-color: #FF5252;
  transform: scale(1.1) rotate(90deg);
}

.lightbox-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: white;
  background: rgba(255, 255, 255, 0.2);
  border: 3px solid rgba(255, 255, 255, 0.4);
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 2100;
}

.lightbox-nav-btn:hover {
  background: rgba(100, 181, 246, 0.9);
  border-color: var(--primary-blue);
  transform: translateY(-50%) scale(1.1);
}

.lightbox-nav-btn.prev {
  left: 20px;
}

.lightbox-nav-btn.next {
  right: 20px;
}

.lightbox-image-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 100px 100px 60px 100px;
  width: 100%;
}

.lightbox-image {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
}

.lightbox-info {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.lightbox-index {
  color: white;
  font-size: 1.3rem;
  font-family: var(--font-cartoon);
  text-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

.lightbox-sound-btn {
  width: 50px;
  height: 50px;
  font-size: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 193, 7, 0.9);
  border: 3px solid #FFC107;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-md);
}

.lightbox-sound-btn:hover {
  background: rgba(255, 152, 0, 1);
  border-color: #FF9800;
  transform: scale(1.1);
}

.lightbox-sound-btn:active {
  transform: scale(0.95);
}

.lightbox-sound-btn.playing {
  background: rgba(76, 175, 80, 0.9);
  border-color: #4CAF50;
}

/* ====================
    font-size: 1.8rem;
  }
  
  /* 图片网格触摸优化 */
  .image-item {
    cursor: pointer;
  }
  
  .image-item:active {
    transform: scale(0.95);
  }
  
  /* 翻页按钮优化 */
  .pagination-btn {
    min-height: 44px;
    padding: 12px 20px;
  }
  
  /* Lightbox导航按钮优化 */
  .lightbox-nav-btn {
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
  }
  
  .lightbox-close-btn {
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
  }
}

/* 平板横屏优化 (768px - 1024px) */
@media screen and (min-width: 768px) and (max-width: 1024px) and (orientation: landscape) {
  /* 登录卡片优化 */
  .login-card {
    max-width: 480px;
    padding: 40px 36px;
  }
  
  .login-icon {
    font-size: 70px;
  }
  
  .login-title {
    font-size: 32px;
  }
  
  /* 主内容区 - 平板使用单列居中布局 */
  .content-wrapper {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    width: 100% !important;
  }
  
  /* 地图容器居中 */
  .map-container {
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 auto !important;
  }
  
  /* 区域信息卡片 - 使用固定定位显示在区域旁边 */
  .area-info-card {
    position: fixed !important;
    width: auto;
    min-width: 280px;
    max-width: 360px;
    margin: 0;
  }
  
  /* 弹窗优化 */
  .modal-container {
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
  }
  
  /* 图片预览优化 */
  .lightbox-image {
    max-height: 80vh;
  }
  
  /* 详情页优化 */
  .detail-container {
    max-width: 900px;
    margin: 0 auto;
  }
  
  /* 展示模式使用单图大图翻页，不需要grid布局 */
}

/* 平板竖屏优化 (600px - 768px) */
@media screen and (min-width: 600px) and (max-width: 768px) and (orientation: portrait) {
  /* 登录卡片优化 */
  .login-card {
    max-width: 500px;
    padding: 44px 38px;
  }
  
  .login-icon {
    font-size: 75px;
  }
  
  .login-title {
    font-size: 34px;
  }
  
  .login-btn {
    padding: 20px;
    font-size: 22px;
  }
  
  /* 用户信息栏按钮 - 与电脑端一致 */
  .user-info-bar {
    padding: 12px 20px;
  }
  
  .user-info-bar .user-name {
    font-size: 16px;
  }
  
  .user-bar-actions {
    gap: 16px;
  }
  
  .help-btn,
  .logout-btn {
    padding: 12px 20px;
    font-size: 16px;
    font-weight: 600;
    min-height: 48px;
    border-width: 3px;
  }
  
  /* 主内容区优化 */
  .header {
    padding: var(--spacing-sm) var(--spacing-md);
  }
  
  .app-title {
    font-size: 1.5rem;
  }
  
  .mode-switch-container {
    width: 100%;
    justify-content: center;
  }
  
  .mode-btn {
    flex: 1;
    max-width: 160px;
  }
  
  /* 地图区域优化 */
  .map-canvas {
    border-width: 4px;
    border-radius: var(--radius-lg);
  }
  
  .area-label {
    font-size: 1.1rem;
    padding: var(--spacing-xs) var(--spacing-sm);
  }
  
  /* 区域列表优化 */
  .area-list-container {
    padding: var(--spacing-md);
  }
  
  /* 弹窗优化 */
  .modal-container {
    max-width: 90%;
    max-height: 85vh;
    margin: var(--spacing-md);
    overflow-y: auto;
  }
  
  .modal-body {
    max-height: calc(85vh - 150px);
    overflow-y: auto;
  }
  
  /* 图片预览优化 */
  .image-lightbox {
    padding: var(--spacing-md);
  }
  
  .lightbox-nav-btn {
    width: 50px;
    height: 50px;
  }
  
  .lightbox-image {
    max-height: 75vh;
    border-radius: var(--radius-lg);
  }
  
  /* 详情页优化 */
  .detail-container {
    padding: var(--spacing-md);
  }
  
  .detail-header {
    padding: var(--spacing-md);
  }
  
  .detail-icon {
    font-size: 3rem;
  }
  
  .detail-title {
    font-size: 2rem;
  }
  
  /* 展示模式使用单图大图翻页，不需要grid布局 */
  
  /* 编辑区域优化 */
  .edit-detail-body {
    padding: var(--spacing-md);
  }
  
  .edit-textarea {
    min-height: 150px;
  }
}

/* 小平板和大手机优化 (480px - 600px) */
@media screen and (min-width: 480px) and (max-width: 600px) {
  /* 登录卡片优化 */
  .login-card {
    max-width: 440px;
    padding: 36px 32px;
  }
  
  .login-icon {
    font-size: 65px;
  }
  
  .login-title {
    font-size: 30px;
  }
  
  /* 用户信息栏按钮优化 - 小平板端大按钮 */
  .user-info-bar {
    padding: 10px 16px;
  }
  
  .user-bar-actions {
    gap: 20px;
  }
  
  .help-btn,
  .logout-btn {
    padding: 12px 20px;
    font-size: 16px;
    min-height: 52px;
  }
  
  /* 弹窗优化 */
  .modal-container {
    max-width: 95%;
    margin: var(--spacing-sm);
  }
  
  /* 图片网格优化 */
  .image-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  /* 展示模式使用单图大图翻页，不需要grid布局 */
}

/* iPad Pro 和大平板优化 (1024px+) */
@media screen and (min-width: 1024px) and (hover: none) {
  /* 内容区单列居中布局 */
  .editModeView .content-wrapper,
  .showModeView .content-wrapper {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    width: 100% !important;
  }
  
  /* 地图容器居中 */
  .map-container {
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 auto !important;
  }
  
  /* 区域信息卡片 - 使用固定定位显示在区域旁边 */
  .area-info-card {
    position: fixed !important;
    width: auto;
    min-width: 280px;
    max-width: 360px;
    margin: 0;
  }
}

/* 横屏模式特殊优化 */
@media screen and (orientation: landscape) and (max-height: 500px) {
  /* 登录界面横屏优化 */
  .login-container {
    padding: var(--spacing-sm);
  }
  
  .login-card {
    padding: 24px 32px;
    max-width: 600px;
  }
  
  .login-icon {
    font-size: 50px;
    margin-bottom: 8px;
  }
  
  .login-title {
    font-size: 26px;
    margin-bottom: 4px;
  }
  
  .login-subtitle {
    font-size: 14px;
    margin-bottom: 12px;
  }
  
  .login-form {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 12px;
  }
  
  .login-form .form-group {
    flex: 1;
    min-width: 200px;
  }
  
  .login-btn {
    flex: 1;
    min-width: 150px;
  }
  
  .login-error {
    width: 100%;
  }
  
  /* 弹窗横屏优化 */
  .modal-container {
    max-width: 700px;
    max-height: 95vh;
  }
  
  .modal-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
  }
  
  .modal-footer {
    grid-column: 1 / -1;
  }
}

/* 高分辨率平板优化 */
@media screen and (min-resolution: 1.5dppx) and (max-width: 1024px) {
  /* 更清晰的边框 */
  .map-canvas,
  .area-item,
  .mode-btn,
  .login-card {
    border-width: 2px;
  }
  
  /* 更清晰的阴影 */
  .card-bg,
  .modal-container,
  .area-info-card {
    box-shadow: var(--shadow-md);
  }
}

/* 安全区域适配（刘海屏/圆角屏） */
@supports (padding: max(0px)) {
  .header {
    padding-top: max(var(--spacing-sm), env(safe-area-inset-top));
    padding-left: max(var(--spacing-md), env(safe-area-inset-left));
    padding-right: max(var(--spacing-md), env(safe-area-inset-right));
  }
  
  .user-info-bar {
    padding-top: max(8px, env(safe-area-inset-top));
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
  }
  
  .view-container {
    padding-bottom: max(var(--spacing-md), env(safe-area-inset-bottom));
    padding-left: max(var(--spacing-md), env(safe-area-inset-left));
    padding-right: max(var(--spacing-md), env(safe-area-inset-right));
  }
  
  .login-container {
    padding-bottom: env(safe-area-inset-bottom);
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }
  
  .modal-overlay {
    padding: max(var(--spacing-sm), env(safe-area-inset-top)) max(var(--spacing-sm), env(safe-area-inset-right)) max(var(--spacing-sm), env(safe-area-inset-bottom)) max(var(--spacing-sm), env(safe-area-inset-left));
  }
}

/* ====================
   全屏内嵌模式优化
   ==================== */

/* 全屏应用模式 */
@media all and (display-mode: fullscreen) {
  html, body {
    height: 100vh;
    height: 100dvh; /* 动态视口高度 */
    overflow: hidden;
  }
  
  #app {
    height: 100%;
    overflow: hidden;
  }
  
  .login-container {
    height: 100%;
    padding-top: env(safe-area-inset-top, 0);
    padding-bottom: env(safe-area-inset-bottom, 0);
  }
  
  .main-app {
    display: flex;
    flex-direction: column;
    height: 100%;
  }
  
  .header {
    flex-shrink: 0;
    position: relative;
    top: auto;
    padding-top: max(var(--spacing-sm), env(safe-area-inset-top, 0));
  }
  
  .view-container {
    flex: 1;
    overflow: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
  }
  
  .content-wrapper {
    min-height: 100%;
  }
  
  /* 区域信息卡片全屏适配 - 使用固定定位 */
  .area-info-card {
    position: fixed !important;
  }
}

/* 独立应用模式（PWA standalone） */
@media all and (display-mode: standalone) {
  html, body {
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
  }
  
  #app {
    height: 100%;
    display: flex;
    flex-direction: column;
  }
  
  .header {
    flex-shrink: 0;
    position: relative;
    top: auto;
    padding-top: max(var(--spacing-sm), env(safe-area-inset-top, 0));
  }
  
  .view-container {
    flex: 1;
    overflow: auto;
    -webkit-overflow-scrolling: touch;
  }
  
  /* 登录界面全屏适配 */
  .login-container {
    position: fixed;
    height: 100%;
    height: 100dvh;
    padding-top: env(safe-area-inset-top, 0);
    padding-bottom: env(safe-area-inset-bottom, 0);
  }
}

/* Minimal UI模式 */
@media all and (display-mode: minimal-ui) {
  .header {
    padding-top: max(var(--spacing-sm), env(safe-area-inset-top, 0));
  }
  
  .view-container {
    padding-bottom: max(var(--spacing-md), env(safe-area-inset-bottom, 0));
  }
}

/* iOS Safari全屏模式特殊处理 */
@supports (-webkit-touch-callout: none) {
  /* iOS Safari地址栏收缩时的高度适配 */
  .login-container {
    min-height: -webkit-fill-available;
    min-height: 100dvh;
  }
  
  .main-app {
    min-height: -webkit-fill-available;
    min-height: 100dvh;
  }
  
  /* iOS安全区域 */
  .header {
    padding-top: max(var(--spacing-sm), env(safe-area-inset-top, 20px));
  }
  
  .user-info-bar {
    padding-top: max(8px, env(safe-area-inset-top, 20px));
  }
  
  .view-container {
    padding-bottom: max(var(--spacing-md), env(safe-area-inset-bottom, 20px));
  }
  
  /* 底部按钮安全区域 */
  .modal-footer {
    padding-bottom: max(var(--spacing-sm), env(safe-area-inset-bottom, 20px));
  }
  
  .detail-body {
    padding-bottom: max(var(--spacing-md), env(safe-area-inset-bottom, 20px));
  }
}

/* iframe内嵌模式检测（通过JS添加class） */
body.in-iframe {
  /* iframe内时移除固定定位 */
  overflow: auto;
}

body.in-iframe .login-container {
  position: absolute;
  min-height: 100%;
}

body.in-iframe .header {
  position: relative;
  top: auto;
}

body.in-iframe .main-app {
  min-height: 100vh;
}

/* 全屏API (Fullscreen API) 模式 */
:fullscreen {
  background: var(--bg-color);
}

:fullscreen #app {
  height: 100vh;
  display: flex;
  flex-direction: column;
}

:fullscreen .header {
  position: relative;
  flex-shrink: 0;
}

:fullscreen .view-container {
  flex: 1;
  overflow: auto;
}

:-webkit-full-screen {
  background: var(--bg-color);
}

:-moz-full-screen {
  background: var(--bg-color);
}

:-ms-fullscreen {
  background: var(--bg-color);
}

/* 动态视口单位支持 */
@supports (height: 100dvh) {
  html, body {
    height: 100dvh;
  }
  
  .login-container {
    height: 100dvh;
  }
  
  .main-app {
    min-height: 100dvh;
  }
}

/* 大视口单位支持 */
@supports (height: 100lvh) {
  .login-container {
    min-height: 100lvh;
  }
}

/* 小视口单位支持 */
@supports (height: 100svh) {
  .login-container {
    min-height: 100svh;
  }
}

/* 横屏全屏模式优化 */
@media screen and (orientation: landscape) and (display-mode: fullscreen),
       screen and (orientation: landscape) and (display-mode: standalone) {
  .login-card {
    max-height: 95vh;
    max-width: 50vw;
    overflow-y: auto;
  }
  
  .login-form {
    flex-direction: row;
    flex-wrap: wrap;
  }
  
  .login-form .form-group {
    flex: 1;
    min-width: 200px;
  }
  
  .login-btn {
    flex: 1;
  }
}

/* 打印样式优化 */
@media print {
  .login-container,
  .user-info-bar,
  .mode-switch-container,
  .add-area-btn,
  .logout-btn,
  .modal-overlay {
    display: none !important;
  }
  
  .view-container {
    display: block !important;
  }
  
  .map-canvas {
    page-break-inside: avoid;
  }
}

/* ====================
   平板电脑滚动修复
   ==================== */

/* 确保页面可滚动 */
html {
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
}

body {
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
}

/* 登录界面保持固定定位 */
.login-container {
  position: fixed;
  overflow: hidden;
}

/* 主应用容器允许内容滚动 */
.main-app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* 用户信息栏固定在顶部 */
.user-info-bar {
  flex-shrink: 0;
}

/* 头部固定在顶部 */
.header {
  flex-shrink: 0;
}

/* 视图容器可滚动 */
.view-container {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-y: contain;
}

/* 内容区域 */
.content-wrapper {
  min-height: 100%;
}

/* 触摸设备滚动优化 */
@media (hover: none) and (pointer: coarse) {
  /* 确保所有可滚动区域支持触摸滚动 */
  .view-container,
  .modal-body,
  .detail-body,
  .area-list-container,
  .image-upload-area,
  .image-preview-area {
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
  }
  
  /* 区域列表可滚动 */
  .area-list {
    max-height: 400px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  
  /* 展示模式使用单图大图翻页，不需要横向滚动 */
}

/* iOS Safari 特殊处理 */
@supports (-webkit-touch-callout: none) {
  /* iOS Safari 需要明确设置滚动 */
  html {
    -webkit-overflow-scrolling: touch;
  }
  
  body {
    position: relative;
    -webkit-overflow-scrolling: touch;
  }
  
  /* 登录界面 */
  .login-container {
    position: fixed;
    height: 100%;
    height: 100dvh;
    overflow: hidden;
  }
  
  /* 主应用 */
  .main-app {
    min-height: 100vh;
    min-height: 100dvh;
  }
  
  /* 视图容器可滚动 */
  .view-container {
    -webkit-overflow-scrolling: touch;
    overflow-y: auto;
  }
  
  /* 弹窗内容可滚动 */
  .modal-body {
    max-height: 70vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  
  /* 详情页内容可滚动 */
  .detail-container {
    -webkit-overflow-scrolling: touch;
  }
  
  .detail-body {
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  
  /* iOS 展示模式大图显示 */
  .detail-images-container {
    display: flex !important;
    flex-direction: column !important;
    min-height: 50vh !important;
  }
  
  .detail-single-image {
    min-height: 50vh !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
  }
  
  .detail-single-image img {
    max-width: 100% !important;
    max-height: 60vh !important;
  }
}

/* 修复登录后页面无法滚动的问题 */
.main-app:not(.hidden) {
  display: flex;
  flex-direction: column;
}

.main-app:not(.hidden) .view-container.active {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow-y: auto;
}

/* 确保内容可以撑开高度 */
.map-container,
.detail-container,
.edit-detail-body {
  flex-shrink: 0;
}

/* 浏览器模式（平板电脑默认模式）- 确保可滚动 */
body:not(.in-iframe):not(.in-fullscreen):not(.in-standalone):not(.in-minimal-ui) {
  overflow-y: auto;
  overflow-x: hidden;
}

body:not(.in-iframe):not(.in-fullscreen):not(.in-standalone):not(.in-minimal-ui) .main-app {
  display: flex;
  flex-direction: column;
}

body:not(.in-iframe):not(.in-fullscreen):not(.in-standalone):not(.in-minimal-ui) .view-container.active {
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

/* Android 平板 Chrome 优化 */
@media screen and (max-width: 1024px) and (pointer: coarse) {
  html {
    overflow-y: auto !important;
    overflow-x: hidden !important;
    touch-action: pan-y;  /* 允许垂直滚动 */
  }
  
  body {
    overflow-y: auto !important;
    overflow-x: hidden !important;
    position: relative !important;
    height: auto !important;
    min-height: 100vh;
    touch-action: pan-y;  /* 允许垂直滚动 */
  }
  
  #app {
    height: auto !important;
    min-height: 100vh;
  }
  
  /* 用户信息栏按钮优化 - Android平板大按钮 */
  .user-info-bar {
    padding: 12px 20px !important;
  }
  
  .user-bar-actions {
    gap: 24px !important;  /* 更大的间距防止误触 */
  }
  
  .help-btn,
  .logout-btn {
    padding: 14px 24px !important;
    font-size: 18px !important;
    min-height: 56px !important;  /* 更大的触摸区域 */
    border-width: 3px !important;
  }
  
  /* 展示模式大图显示 - 确保在Android平板上显示大图 */
  .detail-images-container {
    display: flex !important;
    flex-direction: column !important;
    min-height: 50vh !important;
    width: 100% !important;
  }
  
  .detail-single-image {
    min-height: 50vh !important;
    width: 100% !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
  }
  
  .detail-single-image img {
    max-width: 100% !important;
    max-height: 60vh !important;
    width: auto !important;
    height: auto !important;
  }
  
  /* 翻页按钮优化 */
  .pagination-btn {
    padding: 14px 20px !important;
    font-size: 16px !important;
    min-height: 48px !important;
  }
  
  .pagination-counter {
    font-size: 18px !important;
  }
  
  .view-container {
    overflow-y: auto !important;
    overflow-x: hidden !important;
    height: auto !important;
    -webkit-overflow-scrolling: touch;
  }
  
  /* 确保内容区域可以滚动 */
  .content-wrapper {
    min-height: 100%;
    overflow: visible;
  }
}

/* ====================
   使用说明书弹窗样式
   ==================== */

.help-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 16px;
  animation: fadeIn 0.3s ease;
}

.help-modal-container {
  background: linear-gradient(135deg, #FFF8E1 0%, #FFE0B2 100%);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  display: flex;
  flex-direction: column;
  animation: slideUp 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.help-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: linear-gradient(135deg, #64B5F6 0%, #42A5F5 100%);
  color: white;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.help-modal-title {
  font-size: 1.5rem;
  font-weight: bold;
  margin: 0;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

.help-modal-close {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  font-size: 1.2rem;
  cursor: pointer;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.help-modal-close:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.1);
}

.help-modal-body {
  padding: 24px;
  overflow-y: auto;
  max-height: calc(90vh - 80px);
}

.help-welcome {
  text-align: center;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 2px dashed #FFE082;
}

.help-welcome-icon {
  font-size: 3rem;
  margin-bottom: 12px;
}

.help-welcome-title {
  font-size: 1.4rem;
  color: var(--primary-purple);
  margin-bottom: 8px;
}

.help-welcome-text {
  color: var(--text-secondary);
  font-size: 1rem;
}

.help-section {
  margin-bottom: 20px;
}

.help-section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: linear-gradient(135deg, #E3F2FD 0%, #BBDEFB 100%);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s ease;
}

.help-section-header:hover {
  transform: translateX(4px);
}

.help-section-icon {
  font-size: 1.5rem;
}

.help-section-title {
  font-size: 1.2rem;
  font-weight: bold;
  color: var(--primary-blue);
  flex: 1;
}

.help-section-arrow {
  font-size: 1rem;
  color: var(--primary-blue);
  transition: transform 0.3s ease;
}

.help-section-header.expanded .help-section-arrow {
  transform: rotate(180deg);
}

.help-section-content {
  padding: 16px 20px;
  background: white;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  border: 2px solid #E3F2FD;
  border-top: none;
}

.help-step {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px;
  margin-bottom: 12px;
  background: #FFF8E1;
  border-radius: var(--radius-sm);
}

.help-step:last-child {
  margin-bottom: 0;
}

.help-step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--primary-blue);
  color: white;
  border-radius: 50%;
  font-size: 0.9rem;
  font-weight: bold;
  flex-shrink: 0;
}

.help-step-text {
  flex: 1;
  color: var(--text-primary);
  line-height: 1.5;
}

.help-tip {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 16px;
  background: linear-gradient(135deg, #FFF9C4 0%, #FFF59D 100%);
  border-radius: var(--radius-sm);
  margin-top: 12px;
}

.help-tip-icon {
  font-size: 1.2rem;
}

.help-tip-text {
  flex: 1;
  font-size: 0.95rem;
  color: #795548;
}

/* 隐藏类 */
.help-modal-overlay.hidden {
  display: none !important;
}

/* ====================
   平板设备通用修复（最高优先级）
   ==================== */

/* 触摸设备 - 允许滚动 */
@media screen and (pointer: coarse) {
  html, body {
    width: 100% !important;
    height: auto !important;
    min-height: 100vh !important;
    overflow-x: hidden !important;
    overflow-y: auto !important;
    touch-action: pan-y;
    -webkit-overflow-scrolling: touch;
  }
  
  #app, .main-app {
    width: 100% !important;
    height: auto !important;
    min-height: 100vh !important;
    display: flex !important;
    flex-direction: column !important;
  }
  
  .view-container {
    width: 100% !important;
    overflow-x: hidden !important;
    overflow-y: auto !important;
    touch-action: pan-y;
    -webkit-overflow-scrolling: touch;
  }
  
  .view-container.active {
    display: flex !important;
    flex-direction: column !important;
  }
  
  .content-wrapper {
    width: 100% !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
  }
  
  .map-container {
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 !important;
    padding: 16px !important;
    box-sizing: border-box !important;
  }
  
  .map-canvas {
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 auto !important;
    box-sizing: border-box !important;
  }
  
  .map-background {
    width: 100% !important;
    height: auto !important;
  }
  
  /* 按钮样式统一 */
  .help-btn, .logout-btn {
    padding: 12px 20px !important;
    font-size: 16px !important;
    min-height: 48px !important;
  }
  
  /* 区域列表可滚动 */
  .area-list {
    max-height: 300px !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch;
  }
  
  /* 详情页可滚动 */
  .detail-container {
    width: 100% !important;
    overflow-y: auto !important;
  }
  
  /* 图片显示 */
  .detail-single-image img {
    max-width: 95% !important;
    max-height: 50vh !important;
  }
}

/* 平板设备 - 中等屏幕 */
@media screen and (min-width: 600px) and (max-width: 1366px) {
  .map-container {
    width: 100% !important;
    max-width: 100% !important;
  }
  
  .map-canvas {
    width: 100% !important;
    max-width: 100% !important;
  }
}

@keyframes slideUp {
  from { 
    opacity: 0;
    transform: translateY(20px);
  }
  to { 
    opacity: 1;
    transform: translateY(0);
  }
}

.help-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
  color: white;
  flex-shrink: 0;
}

.help-modal-title {
  font-size: 1.5rem;
  font-weight: bold;
  margin: 0;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.help-close-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.2);
  color: white;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.help-close-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: rotate(90deg);
}

.help-modal-body {
  padding: 20px 24px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

/* 欢迎部分 */
.help-welcome {
  text-align: center;
  padding: 20px;
  margin-bottom: 20px;
  background: white;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.help-welcome-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: 12px;
}

.help-welcome-title {
  font-size: 1.3rem;
  color: var(--primary-purple);
  margin-bottom: 8px;
}

.help-welcome-text {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* 章节样式 */
.help-section {
  background: white;
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.help-section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: linear-gradient(135deg, #E3F2FD, #BBDEFB);
  border-bottom: 2px dashed var(--primary-blue);
}

.help-section-icon {
  font-size: 1.5rem;
}

.help-section-title {
  font-size: 1.1rem;
  color: #1976D2;
  margin: 0;
}

.help-section-content {
  padding: 16px 20px;
}

/* 步骤样式 */
.help-step {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
  padding: 12px;
  background: #F5F5F5;
  border-radius: var(--radius-sm);
}

.help-step:last-child {
  margin-bottom: 0;
}

.help-step-num {
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--primary-orange), #FF9800);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.help-step p {
  margin: 0;
  color: var(--text-primary);
  line-height: 1.5;
}

.help-step strong {
  color: var(--primary-purple);
}

/* 提示样式 */
.help-tip {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-top: 12px;
  padding: 12px 16px;
  background: #E8F5E9;
  border-left: 4px solid var(--primary-green);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.help-tip-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
}

.help-tip p {
  margin: 0;
  color: #2E7D32;
  font-size: 0.95rem;
}

.help-tip-warning {
  background: #FFF3E0;
  border-left-color: var(--primary-orange);
}

.help-tip-warning p {
  color: #E65100;
}

/* 模式卡片 */
.help-mode-card {
  background: #F5F5F5;
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 12px;
  border: 2px solid transparent;
  transition: all 0.3s ease;
}

.help-mode-card:hover {
  border-color: var(--primary-blue);
  transform: translateX(4px);
}

.help-mode-card:last-child {
  margin-bottom: 0;
}

.help-mode-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.help-mode-icon {
  font-size: 1.5rem;
}

.help-mode-name {
  font-weight: bold;
  color: var(--text-primary);
  font-size: 1.1rem;
}

.help-mode-desc {
  margin: 0;
  color: var(--text-secondary);
  padding-left: 34px;
}

.help-mode-desc strong {
  color: var(--primary-purple);
}

/* 普通文本 */
.help-text {
  color: var(--text-secondary);
  margin-bottom: 12px;
}

/* 底部提示 */
.help-footer-tips {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 2px dashed #E0E0E0;
}

/* 响应式调整 */
@media (max-width: 600px) {
  .help-modal-container {
    max-height: 95vh;
  }
  
  .help-modal-header {
    padding: 16px 20px;
  }
  
  .help-modal-title {
    font-size: 1.3rem;
  }
  
  .help-modal-body {
    padding: 16px;
  }
  
  .help-welcome-icon {
    font-size: 2.5rem;
  }
  
  .help-section-header {
    padding: 12px 16px;
  }
  
  .help-section-content {
    padding: 12px 16px;
  }
  
  .help-step {
    padding: 10px;
  }
  
  .help-step-num {
    width: 24px;
    height: 24px;
    font-size: 0.8rem;
  }
}

/* 隐藏类 */
.help-modal-overlay.hidden {
  display: none;
}

/* ====================
   平板 Edge 浏览器兼容性修复
   ==================== */

/* Edge 浏览器基于 Chromium，支持大部分现代特性 */
/* 主要修复：触摸事件、滚动行为、视口适配 */

/* 平板设备通用样式 - 确保与电脑端一致 */
@media screen and (max-width: 1024px) and (pointer: coarse) {
  /* 用户信息栏按钮 - 与电脑端一致 */
  .user-info-bar {
    padding: 12px 20px !important;
  }
  
  .user-bar-actions {
    gap: 16px !important;
  }
  
  .help-btn,
  .logout-btn {
    padding: 12px 20px !important;
    font-size: 16px !important;
    font-weight: 600 !important;
    min-height: 48px !important;
    border-width: 3px !important;
  }
  
  /* 登录按钮 */
  .login-btn {
    padding: 16px 24px !important;
    font-size: 18px !important;
    min-height: 56px !important;
  }
}

/* Edge 浏览器特定修复 */
@supports (-ms-ime-align: auto) {
  /* 旧版 Edge (EdgeHTML) */
  .interactive-area {
    -webkit-tap-highlight-color: transparent;
  }
}

/* Chromium Edge 触摸优化 */
@media screen and (pointer: coarse) {
  /* 禁用双击缩放 */
  * {
    touch-action: manipulation;
  }
  
  /* 允许滚动的区域 */
  .view-container,
  .modal-body,
  .detail-body,
  .area-list-container,
  .image-preview-area {
    touch-action: pan-y;
  }
  
  /* 按钮和链接 */
  .mode-btn,
  .login-btn,
  .logout-btn,
  .add-area-btn,
  .enter-area-btn,
  .back-to-map-btn,
  .save-edit-btn,
  .modal-btn,
  .help-btn {
    touch-action: manipulation;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0.1);
  }
  
  /* 区域元素 */
  .interactive-area {
    touch-action: manipulation;
  }
  
  /* 输入框 */
  .login-input,
  .form-input,
  .edit-name-input,
  .edit-textarea {
    touch-action: auto;
  }
}

/* 平板 Edge 滚动优化 */
@media screen and (max-width: 1024px) and (pointer: coarse) {
  /* 主容器滚动 */
  html {
    -webkit-overflow-scrolling: touch;
    overflow-y: auto;
    overflow-x: hidden;
  }
  
  body {
    -webkit-overflow-scrolling: touch;
    overflow-y: auto;
    overflow-x: hidden;
    overscroll-behavior: none;
  }
  
  /* 视图容器 */
  .view-container {
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
  }
  
  /* 区域列表 */
  .area-list {
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
  }
  
  /* 详情页 */
  .detail-container {
    -webkit-overflow-scrolling: touch;
  }
  
  /* 图片容器 - 展示模式大图 */
  .detail-images-container {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    min-height: 400px !important;
    width: 100% !important;
  }
  
  .detail-single-image {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    min-height: 400px !important;
    width: 100% !important;
  }
  
  .detail-single-image img {
    max-width: 95% !important;
    max-height: 65vh !important;
    width: auto !important;
    height: auto !important;
    min-height: 300px !important;
    object-fit: contain;
  }
}

/* 修复 Edge 中 SVG 图标可能的问题 */
.area-icon svg {
  display: inline-block;
  vertical-align: middle;
}

/* 修复 Edge 中 Flexbox 可能的问题 */
.user-bar-actions,
.modal-buttons,
.header-actions {
  display: -webkit-box;
  display: -webkit-flex;
  display: flex;
}

/* 修复 Edge 中 Grid 可能的问题 */
.image-grid {
  display: -ms-grid;
  display: grid;
}

/* Edge 输入框聚焦修复 */
input:focus,
textarea:focus,
select:focus {
  outline: 2px solid var(--primary-blue);
  outline-offset: 2px;
}

/* Edge 触摸设备输入框 */
@media screen and (pointer: coarse) {
  input,
  textarea,
  select {
    font-size: 16px; /* 防止自动缩放 */
  }
}

/* ====================
   华为 MatePad 专门优化
   ==================== */

/* 华为 MatePad 10.4/10.8/Pro 适配 */
@media screen and (min-width: 768px) and (max-width: 1400px) and (max-height: 1200px) {
  /* 登录页面优化 */
  .login-card {
    max-width: 90%;
    padding: 32px 28px;
    margin: 16px;
  }
  
  .login-icon {
    font-size: 56px;
  }
  
  .login-title {
    font-size: 26px;
  }
  
  .login-subtitle {
    font-size: 14px;
  }
  
  .login-input {
    padding: 14px 16px;
    font-size: 16px;
  }
  
  .login-btn {
    padding: 14px 24px;
    font-size: 17px;
  }
  
  /* 主布局优化 */
  .view-container {
    padding: 12px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  
  /* 地图容器 */
  .map-container {
    padding: 12px;
    margin: 0;
  }
  
  .map-canvas {
    width: 100%;
    margin: 0 auto;
  }
  
  .map-background {
    width: 100%;
    height: auto;
    display: block;
  }
  
  /* 交互区域 */
  .interactive-area {
    min-height: 48px;
    padding: 10px 16px;
    font-size: 15px;
  }
  
  .area-label {
    padding: 8px 14px;
    font-size: 14px;
  }
  
  /* 模式切换按钮 */
  .mode-btn {
    padding: 12px 24px;
    font-size: 16px;
    min-height: 52px;
  }
  
  /* 区域信息卡片 */
  .area-info-card {
    min-width: 280px;
    max-width: 360px;
    padding: 16px;
  }
  
  /* 按钮优化 */
  .help-btn,
  .logout-btn {
    padding: 12px 20px;
    font-size: 15px;
    min-height: 48px;
  }
  
  /* 用户信息栏 */
  .user-info-bar {
    padding: 10px 16px;
    flex-wrap: wrap;
    gap: 10px;
  }
  
  /* 详情页面 */
  .detail-container {
    padding: 16px;
  }
  
  .detail-header {
    padding: 20px 16px;
    flex-direction: row;
    align-items: center;
  }
  
  .detail-icon {
    font-size: 40px;
    margin-bottom: 0;
    margin-right: 16px;
  }
  
  .detail-title {
    font-size: 22px;
  }
  
  .detail-section {
    padding: 16px;
  }
  
  .detail-section-title {
    font-size: 17px;
  }
  
  .detail-description {
    font-size: 15px;
    line-height: 1.7;
  }
  
  /* 图片网格 */
  .image-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 12px;
  }
  
  .image-item {
    min-height: 120px;
  }
  
  .edit-sound-icon,
  .remove-image-btn {
    width: 36px;
    height: 36px;
    font-size: 14px;
  }
  
  /* 返回按钮 */
  .back-btn {
    padding: 12px 20px;
    font-size: 15px;
    min-height: 48px;
  }
  
  /* 编辑模式 */
  .edit-textarea {
    padding: 14px;
    font-size: 15px;
    min-height: 120px;
  }
  
  /* 区域列表 */
  .area-list {
    padding: 12px;
  }
  
  .area-item {
    padding: 14px 16px;
    font-size: 15px;
    min-height: 52px;
  }
}

/* 华为 MatePad 横屏优化 */
@media screen and (min-width: 1024px) and (max-width: 1400px) and (orientation: landscape) {
  .main-app {
    flex-direction: row;
  }
  
  .map-container {
    flex: 1;
  }
  
  .area-info-card {
    width: 320px;
    max-height: calc(100vh - 100px);
    overflow-y: auto;
  }
}

/* 华为 MatePad 竖屏优化 */
@media screen and (max-width: 900px) and (orientation: portrait) {
  .map-background {
    width: 100%;
    height: auto;
  }
  
  .area-info-card {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    max-width: 100%;
    border-radius: 20px 20px 0 0;
    max-height: 50vh;
  }
}

/* 华为 MatePad 触摸优化 */
@media screen and (pointer: coarse) and (min-width: 600px) {
  /* 增大触摸目标 */
  button,
  .btn,
  .mode-btn,
  .help-btn,
  .logout-btn,
  .back-btn,
  .area-item,
  .add-area-btn {
    min-height: 48px;
    padding: 12px 20px;
  }
  
  /* 触摸反馈 */
  button:active,
  .btn:active,
  .mode-btn:active,
  .area-item:active {
    opacity: 0.8;
    transform: scale(0.98);
  }
  
  /* 禁用文本选择 */
  .mode-btn,
  .help-btn,
  .logout-btn,
  .area-item {
    -webkit-user-select: none;
    user-select: none;
  }
  
  /* 图片预览触摸 */
  .detail-images-container {
    touch-action: manipulation;
  }
  
  /* 防止意外滚动 */
  .map-canvas {
    touch-action: pan-y pinch-zoom;
  }
}

/* 华为浏览器特定修复 */
@supports (-huawei-browser: 1) {
  .view-container,
  .map-container,
  .content-wrapper {
    -webkit-overflow-scrolling: touch;
  }
  
  .map-background {
    -webkit-transform: translateZ(0);
    will-change: contents;
  }
}

/* 华为 MatePad 120Hz 刷新率优化 */
@media (-webkit-min-device-pixel-ratio: 2) {
  .view-container,
  .interactive-area,
  .area-label {
    -webkit-font-smoothing: subpixel-antialiased;
  }
}

/* 防止华为浏览器自动缩放 */
html {
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}

body {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

/* 输入框防止自动放大 */
@media screen and (max-width: 1400px) {
  input,
  select,
  textarea {
    font-size: 16px;
  }
}

/* ====================
   强制地图显示样式（解决华为平板不显示问题）
   ==================== */

/* 确保地图容器和画布显示 */
.map-container,
.map-canvas,
.map-background {
  display: block !important;
  visibility: visible !important;
  opacity: 1 !important;
}

/* 确保地图图片可见 */
.map-background {
  width: 100% !important;
  height: auto !important;
  max-width: 100% !important;
  min-height: 200px !important;
  background: #E8F5E9 !important;
}

/* 确保交互区域层可见 */
.areas-overlay {
  position: absolute !important;
  top: 0 !important;
  left: 0 !important;
  width: 100% !important;
  height: 100% !important;
  pointer-events: auto !important;
}

/* 确保编辑模式地图可见 */
.editModeView,
.editModeView .view-container,
.editModeView .content-wrapper,
.editModeView .map-container {
  display: flex !important;
  flex-direction: column !important;
  width: 100% !important;
  max-width: 100% !important;
}

/* 确保展示模式地图可见 */
.showModeView,
.showModeView .view-container,
.showModeView .content-wrapper,
.showModeView .map-container {
  display: flex !important;
  flex-direction: column !important;
  width: 100% !important;
  max-width: 100% !important;
}

/* ====================
   教师端样式
   ==================== */

/* 教师登录按钮 */
.teacher-login-btn {
  width: 100%;
  padding: 12px 24px;
  background: linear-gradient(135deg, #FF8A65, #FF7043);
  color: white;
  border: none;
  border-radius: var(--radius-lg);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(255, 112, 67, 0.3);
}

.teacher-login-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(255, 112, 67, 0.4);
}

.teacher-login-btn:active {
  transform: translateY(0);
}

.teacher-login-divider {
  display: flex;
  align-items: center;
  margin: 16px 0;
  color: #90A4AE;
  font-size: 13px;
}

.teacher-login-divider::before,
.teacher-login-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: #E0E0E0;
}

.teacher-login-divider span {
  padding: 0 12px;
}

/* 教师弹窗 */
.teacher-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.teacher-modal.hidden {
  display: none;
}

.teacher-modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
}

.teacher-modal-card {
  position: relative;
  background: white;
  border-radius: 20px;
  padding: 28px;
  width: 90%;
  max-width: 420px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  z-index: 1;
}

.teacher-modal-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.teacher-modal-icon {
  font-size: 2rem;
}

.teacher-modal-header h2 {
  font-size: 20px;
  color: #333;
  margin: 0;
}

.teacher-modal-body {
  margin-bottom: 20px;
}

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

/* 教师面板 */
.teacher-panel {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: #F5F7FA;
  z-index: 9000;
  display: flex;
  flex-direction: column;
}

.teacher-panel.hidden {
  display: none;
}

.admin-login-btn { width:100%; margin-top:10px; border:1px solid #a989e6; border-radius:12px; padding:11px; color:#60469a; background:#f4efff; font:inherit; font-weight:800; cursor:pointer; }
.admin-panel { position:fixed; inset:0; z-index:9500; overflow:auto; background:linear-gradient(135deg,#f5f1ff,#eefaff); }.admin-panel.hidden { display:none; }.admin-panel-content { max-width:980px; margin:0 auto; padding:26px; color:#526878; }.admin-teacher-list { display:grid; gap:12px; margin-top:17px; }.admin-teacher-card { display:flex; align-items:center; justify-content:space-between; gap:16px; padding:17px; border-radius:16px; background:#fff; box-shadow:0 5px 16px rgba(54,60,110,.12); }.admin-teacher-card h3 { margin:0; color:#433e66; }.admin-teacher-card p { margin:6px 0 0; color:#86919b; font-size:13px; }.admin-display-label { display:grid; gap:5px; margin-top:10px; color:#526878; font-size:13px; font-weight:800; }.admin-display-name { min-width:230px; padding:8px 10px; border:1px solid #cdd9e4; border-radius:9px; color:#354559; font:inherit; }.admin-teacher-actions { display:flex; align-items:center; flex-wrap:wrap; gap:8px; }.admin-teacher-actions button { border:0; border-radius:9px; padding:8px 11px; font:inherit; font-weight:800; cursor:pointer; }.admin-approve-btn,.admin-reset-btn { color:#fff; background:#319d71; }.admin-reject-btn { color:#a34d4d; background:#ffe7e7; }.admin-status { padding:5px 9px; border-radius:999px; font-size:13px; font-weight:800; }.admin-status.pending { color:#a66a10; background:#fff1c7; }.admin-status.approved { color:#267959; background:#dff5e8; }.admin-status.rejected { color:#a54b4b; background:#ffe4e4; } @media (max-width:620px) { .admin-panel-content { padding:14px; }.admin-teacher-card { align-items:flex-start; flex-direction:column; }.admin-teacher-actions { width:100%; }.admin-display-name { min-width:0; width:100%; box-sizing:border-box; } }

.teacher-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: linear-gradient(135deg, #FF8A65, #FF7043);
  color: white;
  box-shadow: 0 4px 12px rgba(255, 112, 67, 0.3);
}

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

.teacher-panel-title h1 {
  font-size: 20px;
  margin: 0;
}
.teacher-header-actions { display:flex; align-items:center; gap:10px; }

.teacher-icon {
  font-size: 1.8rem;
}

.teacher-panel-content {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
}

/* 教师工作台：概览、筛选和近期动态。使用基础 flex/grid，兼容平板浏览器。 */
.teacher-workbench { max-width:1320px; margin:0 auto 18px; }
.teacher-overview-grid { display:grid; grid-template-columns:repeat(4, minmax(0,1fr)); gap:13px; }
.teacher-overview-card { min-height:84px; display:flex; align-items:center; gap:11px; padding:14px; border-radius:17px; color:#264b5f; background:linear-gradient(135deg,#fff,#edf8ff); box-shadow:0 7px 18px rgba(54,105,132,.10); border:1px solid rgba(117,181,207,.25); }
.teacher-overview-card > span { font-size:28px; }.teacher-overview-card small { display:block; color:#69818e; font-weight:700; }.teacher-overview-card strong { display:block; margin-top:3px; font-size:25px; color:#217ca5; }.teacher-overview-card.inbox { background:linear-gradient(135deg,#fffaf0,#fff0c7); }.teacher-overview-card.inbox strong { color:#c07015; }.teacher-overview-card.inbox button { margin-left:auto; border:0; border-radius:9px; padding:7px 10px; color:#fff; background:#d98a25; font:inherit; font-weight:800; cursor:pointer; }
.teacher-workbench-tools { display:flex; gap:10px; align-items:center; margin-top:15px; padding:12px; border-radius:15px; background:#fff; box-shadow:0 5px 16px rgba(54,105,132,.08); }.teacher-search { flex:1; display:flex; align-items:center; gap:7px; min-width:160px; padding:0 10px; border:1px solid #c7e0ea; border-radius:10px; background:#f9fdff; }.teacher-search input { width:100%; min-width:0; border:0; outline:0; padding:10px 0; background:transparent; font:inherit; }.teacher-workbench-tools select { min-height:40px; border:1px solid #c7e0ea; border-radius:10px; padding:0 9px; color:#456778; background:#f9fdff; font:inherit; }
.teacher-activity { display:flex; align-items:center; justify-content:space-between; gap:15px; margin-top:15px; padding:13px 15px; border-radius:15px; color:#416171; background:linear-gradient(90deg,#f2fbf7,#f2f9ff); }.teacher-activity h2 { margin:0; font-size:16px; }.teacher-activity p { margin:3px 0 0; font-size:12px; color:#718994; }.teacher-activity-list { display:flex; flex-wrap:wrap; justify-content:flex-end; gap:8px; }.teacher-activity-list span { padding:7px 9px; border-radius:999px; color:#50707f; background:#fff; font-size:12px; box-shadow:0 2px 6px rgba(46,91,110,.08); }.teacher-activity-list b { margin-right:5px; color:#286785; }
.teacher-unread-dot { width:9px; height:9px; display:inline-block; border-radius:50%; background:#f05252; box-shadow:0 0 0 3px rgba(240,82,82,.15); }

/* 教室电子屏：大分辨率下保留舒适的阅读宽度，并放大可点击控件。 */
@media (min-width:1500px) and (min-height:850px) {
  .main-content, .teacher-panel-content { padding-left:clamp(24px,4vw,76px); padding-right:clamp(24px,4vw,76px); }
  .map-container { max-width:1500px; margin-left:auto; margin-right:auto; }
  .group-action-menu button, .teacher-action-btn, .student-card-btn, .edit-area-btn, .add-subarea-btn { min-height:42px; }
  .teacher-workbench, .teacher-panel-content > .teacher-panel-info, .teacher-panel-content > .student-list { max-width:1500px; margin-left:auto; margin-right:auto; }
}

.teacher-panel-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  font-size: 15px;
  color: #666;
}

.teacher-action-btn {
  padding: 10px 20px;
  background: linear-gradient(135deg, #FF8A65, #FF7043);
  color: white;
  border: none;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(255, 112, 67, 0.3);
  white-space: nowrap;
}

.teacher-action-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(255, 112, 67, 0.4);
}

.teacher-action-btn:active {
  transform: translateY(0);
}

/* 学生列表 */
.student-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

@media (max-width:900px) { .teacher-overview-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }.teacher-activity { align-items:flex-start; flex-direction:column; }.teacher-activity-list { justify-content:flex-start; } }
@media (max-width:600px) { .teacher-panel-content { padding:12px; }.teacher-overview-card { min-height:70px; padding:10px; }.teacher-overview-card > span { font-size:23px; }.teacher-overview-card strong { font-size:21px; }.teacher-workbench-tools { flex-wrap:wrap; }.teacher-search { flex-basis:100%; }.teacher-workbench-tools select { flex:1; min-width:0; }.teacher-activity-list { width:100%; overflow:auto; flex-wrap:nowrap; }.teacher-activity-list span { white-space:nowrap; } }

.student-list-loading {
  text-align: center;
  padding: 40px;
  color: #999;
  font-size: 15px;
}

.student-card {
  background: white;
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  cursor: pointer;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.student-card:hover {
  border-color: #FF7043;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 112, 67, 0.15);
}

.student-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.student-card-name {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 600;
  color: #333;
}

.student-card-icon {
  font-size: 1.5rem;
}

.student-card-stats {
  display: flex;
  gap: 16px;
  font-size: 13px;
  color: #888;
  margin-bottom: 12px;
}

.student-card-stat {
  display: flex;
  align-items: center;
  gap: 4px;
}

.student-card-time {
  font-size: 12px;
  color: #BBB;
}

.student-card-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.student-card-btn {
  flex: 1;
  padding: 8px 12px;
  border: none;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.student-card-btn-preview {
  background: #E3F2FD;
  color: #1976D2;
}

.student-card-btn-preview:hover {
  background: #BBDEFB;
}

.student-card-btn-download {
  background: #FFF3E0;
  color: #E65100;
}

.student-card-btn-download:hover {
  background: #FFE0B2;
}

.student-card-btn-delete { color:#a54444; background:#fff0f0; border-color:#f0c3c3; }
.student-card-btn-delete:hover { color:#fff; background:#d65a5a; border-color:#d65a5a; }

.group-name-edit { margin:0 0 6px; }
.group-name-edit-hint { margin:0 0 13px; color:#7d8b95; font-size:12px; line-height:1.5; }

/* 教师预览模式 */
.teacher-preview {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: #F5F7FA;
  z-index: 9000;
  display: flex;
  flex-direction: column;
}

.teacher-preview.hidden {
  display: none;
}

.teacher-preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: linear-gradient(135deg, #42A5F5, #1E88E5);
  color: white;
  box-shadow: 0 4px 12px rgba(30, 136, 229, 0.3);
  gap: 12px;
  flex-wrap: wrap;
}

.teacher-preview-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
}

.teacher-student-name {
  background: rgba(255,255,255,0.2);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 14px;
}

.teacher-preview-content {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.teacher-preview-content .map-container {
  width: 100%;
  max-width: 800px;
}

/* 教师端区域信息卡片 */
.teacher-area-card {
  max-width: 360px;
}

.teacher-area-card .area-card-images {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 8px;
  margin-top: 12px;
}

.teacher-area-card .area-card-image {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 1;
}

.teacher-area-card .area-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.teacher-area-card .area-card-sound-badge {
  position: absolute;
  top: 4px;
  right: 4px;
  background: rgba(76, 175, 80, 0.9);
  color: white;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
}

.teacher-area-card .area-card-audio-label {
  font-size: 13px;
  color: #666;
  margin-bottom: 8px;
  font-weight: 600;
}

/* 教师端照片查看弹窗 */
.teacher-image-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10001;
  display: flex;
  align-items: center;
  justify-content: center;
}

.teacher-image-modal.hidden {
  display: none;
}

.teacher-image-modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.85);
}

.teacher-image-modal-content {
  position: relative;
  z-index: 1;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.teacher-image-close {
  position: absolute;
  top: -40px;
  right: 0;
  background: rgba(255,255,255,0.2);
  color: white;
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.teacher-modal-img {
  max-width: 90vw;
  max-height: 75vh;
  object-fit: contain;
  border-radius: 12px;
}

.teacher-modal-sound-btn {
  padding: 10px 24px;
  background: linear-gradient(135deg, #4CAF50, #388E3C);
  color: white;
  border: none;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(76, 175, 80, 0.3);
}

.teacher-modal-sound-btn:hover {
  transform: translateY(-2px);
}

/* 教师端进度条 */
.teacher-progress-bar {
  width: 100%;
  height: 8px;
  background: #E0E0E0;
  border-radius: 4px;
  overflow: hidden;
  margin: 12px 0;
}

.teacher-progress-fill {
  height: 100%;
  background: linear-gradient(135deg, #FF8A65, #FF7043);
  border-radius: 4px;
  transition: width 0.3s ease;
}

/* 空状态 */
.teacher-empty-state {
  text-align: center;
  padding: 60px 20px;
  color: #999;
}

.teacher-empty-state-icon {
  font-size: 4rem;
  margin-bottom: 16px;
}

.teacher-empty-state-text {
  font-size: 16px;
  color: #999;
}

/* 教师端交互区域 */
.teacher-preview .interactive-area {
  cursor: pointer;
}

.teacher-preview .interactive-area:hover {
  filter: brightness(1.1);
}
.teacher-preview .interactive-area.teacher-under-construction { border:3px dashed #7b8790; background:rgba(222,227,230,.88); box-shadow:none; }
.teacher-preview .interactive-area.teacher-under-construction .area-label::after { content:' 🏗️ 待建设'; display:block; font-size:12px; }
.teacher-area-card { left:50%; top:50%; transform:translate(-50%,-50%); z-index:9100; max-height:88vh; overflow:auto; }
.teacher-preview .teacher-label-download { position:absolute; z-index:3; top:-10px; right:-10px; width:30px; height:30px; padding:0; border:2px solid #fff; border-radius:50%; color:#fff; background:#347bb0; box-shadow:0 2px 7px rgba(27,68,98,.35); font-size:14px; cursor:pointer; }
.teacher-resource-download { margin:7px 0 2px; border:0; border-radius:8px; padding:7px 10px; color:#27658c; background:#e4f2fa; font:inherit; font-size:12px; font-weight:800; cursor:pointer; }.teacher-resource-download.hidden{display:none;}
.teacher-area-card .area-card-image { aspect-ratio:auto; min-height:110px; padding-bottom:31px; background:#edf5f8; }.teacher-area-card .area-card-image img { height:calc(100% - 31px); min-height:110px; }.teacher-image-download { position:absolute; z-index:2; bottom:4px; left:4px; right:4px; border:0; border-radius:7px; padding:5px; color:#fff; background:rgba(35,105,145,.92); font:inherit; font-size:11px; font-weight:800; cursor:pointer; }.teacher-image-audio-download { bottom:31px; background:rgba(48,139,91,.92); }

/* 区域信息卡片操作按钮区域 */
.area-info-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

.card-play-audio-btn {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border: none;
  border-radius: 50%;
  background: linear-gradient(135deg, #FFD54F, #FFC107);
  color: white;
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 3px 8px rgba(255, 193, 7, 0.4);
  transition: all 0.3s ease;
  padding: 0;
}

.card-play-audio-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(255, 193, 7, 0.6);
}

.card-play-audio-btn:active {
  transform: scale(0.95);
}

.card-play-audio-btn.playing {
  background: linear-gradient(135deg, #4CAF50, #388E3C);
  box-shadow: 0 3px 8px rgba(76, 175, 80, 0.4);
  animation: audio-pulse 1.5s ease-in-out infinite;
}

@keyframes audio-pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.card-play-audio-btn.hidden {
  display: none;
}

/* 现在 / 未来模式选择 */
.campus-mode-selector { position: fixed; inset: 0; z-index: 5000; display: flex; align-items: center; justify-content: center; padding: 24px; background: radial-gradient(circle at 50% 0%, #dff4ff, #fff6df 55%, #e9f7ef); }
.campus-mode-selector.hidden { display: none; }
.mode-selector-card { width: min(960px, 100%); text-align: center; padding: 36px; border-radius: 30px; background: rgba(255,255,255,.94); box-shadow: 0 20px 60px rgba(61,92,120,.22); }
.mode-kicker { margin: 0; color: #4f9dcb; font-weight: 800; letter-spacing: .15em; }
.mode-selector-card h2 { margin: 8px 0; font-size: clamp(28px, 4vw, 42px); color: #27536d; }
.mode-selector-hint { color: #637783; }
.mode-options { display: flex; justify-content: center; gap: 26px; margin-top: 24px; }
.campus-mode-option { width: min(390px, 45vw); min-height: 360px; display: flex; flex-direction: column; align-items: center; border: 0; border-radius: 0; background: transparent; cursor: pointer; overflow: visible; transition: transform .2s; }
.campus-mode-option:hover { transform: translateY(-7px); }
.campus-mode-option img { width: 100%; height: 245px; object-fit: cover; object-position: center; margin: 0; border-radius: 24px; box-shadow: 0 13px 28px rgba(34,69,92,.25); transition: transform .25s ease, box-shadow .25s ease; }
.campus-mode-option:hover img { transform: scale(1.025); box-shadow: 0 19px 36px rgba(34,69,92,.34); }
.campus-mode-option.future img { object-position: center 42%; }
.campus-mode-option span { font-size: 28px; font-weight: 800; color: #27536d; }
.campus-mode-option small { margin: 6px 0 18px; color: #71828d; font-size: 15px; }
.mode-selector-back-btn { border:0; border-radius:999px; padding:11px 20px; color:#4d6480; background:#eef5f8; font:inherit; font-weight:800; cursor:pointer; transition:transform .2s,background .2s; }
.mode-selector-back-btn:hover { background:#dcecf2; transform:translateY(-2px); }
.future-map-upload { display:flex; align-items:center; justify-content:space-between; gap:12px; margin:12px 0; padding:10px 14px; border-radius:12px; background:#edf8ff; color:#3178a6; font-weight:700; }
.future-map-upload.hidden { display:none; }
.future-map-actions { display:flex; align-items:center; gap:8px; }
.future-mode-back-btn, .future-map-upload-btn { padding:8px 12px; border-radius:8px; cursor:pointer; font:inherit; }
.future-mode-back-btn { border:1px solid #8cc8e8; background:#fff; color:#3178a6; }
.future-map-upload-btn { padding:8px 12px; border-radius:8px; background:#4c9ed1; color:#fff; cursor:pointer; }
.area-completion { width:100%; min-width:0; margin-top:2px; padding-top:3px; }
.area-completion-label { display:flex; align-items:center; justify-content:space-between; font-size:12px; color:#397451; font-weight:700; }
.area-completion-track { height:7px; overflow:hidden; margin:3px 0; border-radius:999px; background:#d9ecdf; }
.area-completion-track span { display:block; height:100%; border-radius:inherit; background:linear-gradient(90deg,#55ba72,#1f8f4c); transition:width .25s ease; }
.area-completion small { display:block; font-size:11px; color:#63816e; white-space:nowrap; }

/* 平板区域列表固定为“展开 | 内容 | 操作”三栏，进度条不再与标题重叠。 */
.area-item {
  display:grid;
  grid-template-columns:38px minmax(0, 1fr);
  align-items:start;
  column-gap:10px;
  min-height:96px;
}
.area-item > .expand-collapse-btn {
  grid-column:1;
  grid-row:1 / span 2;
  align-self:center;
}
.area-item-main { grid-column:2; width:100%; min-width:0; gap:7px; }
.area-item-summary {
  display:grid;
  grid-template-columns:max-content minmax(0, 1fr) max-content 40px 40px;
  align-items:center;
  gap:9px;
}
.area-item-summary .area-icon { grid-column:1; }
.area-item-summary .area-name { grid-column:2; min-width:0; }
.area-item-summary .audio-indicator { grid-column:3; }
.area-item-summary .edit-area-btn { grid-column:4; }
.area-item-summary .add-subarea-btn { grid-column:5; }
.area-completion { margin:0; padding:5px 0 0; border-top:1px solid rgba(64,132,166,.18); }
.area-completion-label { padding:0 1px; }
.area-completion-track { width:100%; margin:5px 0 4px; }

@media (max-width:650px) {
  .area-item { grid-template-columns:32px minmax(0, 1fr); min-height:92px; padding:10px; }
  .area-item-summary { grid-template-columns:max-content minmax(0, 1fr) 36px 36px; gap:6px; }
  .area-item-summary .audio-indicator { display:none; }
  .area-item-summary .edit-area-btn { grid-column:3; width:34px; height:34px; }
  .area-item-summary .add-subarea-btn { grid-column:4; width:34px; height:34px; min-width:34px; }
  .area-completion small { overflow:hidden; text-overflow:ellipsis; }
}

/* 返回模式选择与小组资料 */
.campus-mode-back-btn, .group-info-btn { display:flex; align-items:center; gap:6px; padding:9px 13px; border:0; border-radius:999px; color:#fff; font-weight:800; cursor:pointer; box-shadow:0 4px 12px rgba(42,108,151,.18); transition:transform .2s, box-shadow .2s; }
.campus-mode-back-btn { background:linear-gradient(135deg,#5576d8,#7c5bc6); }
.header-mode-back { margin-left:auto; white-space:nowrap; }
.group-info-btn { background:linear-gradient(135deg,#2c9c9a,#49b878); }
.campus-mode-back-btn:hover, .group-info-btn:hover { transform:translateY(-2px); box-shadow:0 7px 16px rgba(42,108,151,.25); }
.group-info-modal { position:fixed; inset:0; z-index:6000; display:flex; align-items:center; justify-content:center; padding:18px; background:rgba(22,42,56,.48); }
.group-info-modal.hidden { display:none; }
.group-info-dialog { width:min(460px,100%); max-height:min(720px,92vh); overflow:auto; border-radius:24px; background:#fff; box-shadow:0 22px 60px rgba(0,0,0,.25); }
.group-info-header { display:flex; align-items:center; justify-content:space-between; padding:20px 22px; color:#26546d; border-bottom:1px solid #e3eef2; }
.group-info-header h2 { margin:0; font-size:23px; }
.group-info-close { border:0; background:transparent; color:#63808e; font-size:30px; line-height:1; cursor:pointer; }
.group-info-body { padding:20px 22px; }
.group-avatar-wrap { display:flex; justify-content:center; margin:2px 0 12px; }
.group-avatar, .group-avatar-fallback { width:94px; height:94px; border-radius:50%; object-fit:cover; border:4px solid #d7f0e8; box-shadow:0 5px 16px rgba(45,143,112,.2); }
.group-avatar-fallback { display:grid; place-items:center; background:linear-gradient(135deg,#dff7f0,#c8e9ff); font-size:43px; }
.group-profile-summary { display:flex; flex-direction:column; align-items:center; gap:4px; margin-bottom:18px; color:#75838b; font-size:13px; }
.group-profile-summary strong { color:#26546d; font-size:20px; }
.group-member-list { display:flex; flex-direction:column; gap:8px; }
.group-member-list.is-selecting { display:grid; grid-template-columns:repeat(auto-fit,minmax(130px,1fr)); gap:10px; }
.group-member-choice { cursor:pointer; touch-action:manipulation; border:2px solid transparent; }
.group-member-choice.selected { border-color:#3aab85; background:#e1f7ed; }
.group-member-checkbox { width:22px; height:22px; flex-shrink:0; accent-color:#28966e; }
.group-member-row { display:flex; align-items:center; gap:10px; min-height:42px; padding:9px 12px; border-radius:12px; background:#f1faf6; color:#315d4d; font-weight:700; }
.group-member-row span { flex:1; }
.group-member-name-input, .group-member-add input { min-width:0; flex:1; border:1px solid #b9dccc; border-radius:8px; padding:8px 10px; font:inherit; }
.group-member-remove, .group-member-add button { border:0; border-radius:8px; padding:8px 10px; color:#fff; cursor:pointer; font:inherit; font-weight:700; background:#d96262; }
.group-member-empty { margin:0; padding:16px; border-radius:12px; background:#f6f8f8; color:#7d8d91; text-align:center; }
.group-editor { margin-top:14px; padding-top:14px; border-top:1px dashed #b9dccc; }
.group-avatar-actions { display:flex; justify-content:center; gap:8px; margin-bottom:12px; }.group-avatar-upload { display:block; width:max-content; padding:9px 13px; border-radius:10px; background:#e6f7ef; color:#237b55; font-weight:800; cursor:pointer; }
.group-member-add { display:flex; gap:8px; }
.group-member-add button { background:#288e61; }
.group-info-actions { display:flex; justify-content:flex-end; gap:10px; padding:16px 22px 20px; border-top:1px solid #e3eef2; }
.group-secondary-btn, .group-primary-btn { border:0; border-radius:10px; padding:10px 17px; cursor:pointer; font:inherit; font-weight:800; }
.group-secondary-btn { background:#e8f2f7; color:#35627a; }
.group-primary-btn { background:#278d60; color:#fff; }
@media (max-width:650px) { .user-bar-actions{gap:6px}.campus-mode-back-btn span:last-child,.group-info-btn span:last-child{display:none}.campus-mode-back-btn,.group-info-btn{padding:10px}.header-mode-back{margin-left:0}.group-info-body{padding:18px}.group-member-add{flex-wrap:wrap}.group-member-add input{min-width:100%} }

/* 成就墙 */
.achievement-wall-btn { display:flex; align-items:center; gap:6px; padding:9px 13px; border:0; border-radius:999px; color:#fff; background:linear-gradient(135deg,#e5a018,#f1c74a); font-weight:800; cursor:pointer; box-shadow:0 4px 12px rgba(200,145,30,.22); transition:transform .2s,box-shadow .2s; }
.achievement-wall-btn:hover { transform:translateY(-2px); box-shadow:0 7px 16px rgba(200,145,30,.3); }

/* 小组下拉菜单 */
.group-menu-wrap { position:relative; }
.group-menu-trigger { display:flex; align-items:center; gap:9px; border:0; border-radius:999px; padding:7px 12px 7px 8px; background:rgba(255,255,255,.66); color:#315d78; font:inherit; cursor:pointer; transition:background .2s,box-shadow .2s,transform .2s; }
.group-menu-trigger:hover, .group-menu-trigger[aria-expanded="true"] { background:#fff; box-shadow:0 5px 15px rgba(43,91,119,.18); transform:translateY(-1px); }
.header-group-avatar, .header-group-avatar-fallback { width:34px; height:34px; flex:0 0 34px; border-radius:50%; object-fit:cover; border:2px solid #cceee1; }
.header-group-avatar-fallback { display:grid; place-items:center; background:linear-gradient(135deg,#e5f8f1,#d1eafe); font-size:18px; }
.group-menu-trigger .user-name { font-size:14px; font-weight:700; }.group-menu-caret { color:#5891ab; font-size:18px; }
.group-action-menu { position:absolute; z-index:6200; top:calc(100% + 9px); left:0; min-width:180px; padding:7px; border:1px solid #d9e8ed; border-radius:15px; background:#fff; box-shadow:0 14px 30px rgba(27,69,93,.22); }.group-action-menu.hidden{display:none;}
.group-action-menu button { display:block; width:100%; border:0; border-radius:9px; padding:10px 11px; color:#355f76; background:transparent; text-align:left; font:inherit; font-weight:700; cursor:pointer; }.group-action-menu button:hover { background:#edf8fb; }.group-action-menu .group-menu-logout { margin-top:4px; color:#ba5555; border-top:1px solid #edf0f1; }
.feedback-unread-badge { display:inline-block; width:8px; height:8px; margin-left:5px; border-radius:50%; background:#ef4e55; box-shadow:0 0 0 2px #fff; vertical-align:top; }.feedback-unread-badge.hidden { display:none; }

/* 打卡 */
.checkin-modal { position:fixed; inset:0; z-index:6300; display:flex; align-items:center; justify-content:center; padding:18px; background:rgba(16,33,53,.58); }.checkin-modal.hidden{display:none;}
.checkin-dialog { width:min(460px,100%); overflow:hidden; border-radius:25px; background:linear-gradient(160deg,#fffcf2,#eefaff); box-shadow:0 24px 70px rgba(0,0,0,.3); }
.checkin-header { display:flex; justify-content:space-between; align-items:center; padding:20px 22px 15px; color:#365b76; }.checkin-header p { margin:0 0 4px; color:#d6961c; font-size:12px; font-weight:800; letter-spacing:.08em; }.checkin-header h2 { margin:0; font-size:28px; }
.checkin-tabs { display:grid; grid-template-columns:1fr 1fr; padding:0 22px; border-bottom:1px solid #dcebf0; }.checkin-tab { border:0; border-bottom:3px solid transparent; padding:11px; color:#72828b; background:transparent; font:inherit; font-weight:800; cursor:pointer; }.checkin-tab.active { color:#2a8c63; border-color:#49b878; }
.checkin-panel { min-height:235px; padding:23px; text-align:center; }.checkin-panel.hidden{display:none;}.checkin-sun { font-size:56px; animation:checkin-float 2.4s ease-in-out infinite; }.checkin-panel h3 { margin:7px 0; color:#355f76; }.checkin-panel p { color:#72828b; }.do-checkin-btn { margin-top:12px; border:0; border-radius:999px; padding:12px 23px; color:#fff; background:linear-gradient(135deg,#eea934,#ef7c51); box-shadow:0 7px 16px rgba(224,132,58,.28); font:inherit; font-weight:900; cursor:pointer; }.do-checkin-btn:disabled { background:#9bb5a8; box-shadow:none; cursor:default; }
.checkin-history-list { display:flex; flex-direction:column; gap:9px; text-align:left; }.checkin-record { display:flex; justify-content:space-between; align-items:center; padding:11px 13px; border-radius:11px; color:#35617b; background:#f0faf6; font-weight:700; }.checkin-record strong { color:#279260; }.checkin-empty { margin-top:65px!important; }.checkin-empty{color:#74848d;}@keyframes checkin-float{50%{transform:translateY(-7px) rotate(4deg)}}
@media (max-width:650px){.group-menu-trigger .user-name{font-size:13px}.group-menu-caret{display:none}.group-action-menu{min-width:170px}.checkin-dialog{border-radius:20px}}
.feedback-modal { position:fixed; inset:0; z-index:10050; display:flex; align-items:center; justify-content:center; padding:18px; background:rgba(16,33,53,.58); }
.feedback-modal.hidden { display:none; }
.feedback-dialog { width:min(560px,100%); max-height:88vh; overflow:auto; border-radius:25px; background:linear-gradient(160deg,#fffcf2,#eefaff); box-shadow:0 24px 70px rgba(0,0,0,.3); }
.achievement-unlock-dialog { padding:18px 24px 24px; text-align:center; }.achievement-unlock-dialog .checkin-header { justify-content:center; }.achievement-unlock-text { margin:10px 0 20px; color:#345c73; font-size:18px; font-weight:800; }
.teacher-batch-actions { display:flex; align-items:center; gap:9px; flex-wrap:wrap; }.teacher-batch-actions label,.teacher-student-select { color:#41677d; font-size:13px; font-weight:700; }.teacher-student-select { white-space:nowrap; }.teacher-achievement-count { margin-top:8px; color:#b87913; font-size:13px; font-weight:800; }
.feedback-list { display:grid; gap:12px; padding:10px 22px 24px; }.feedback-empty { padding:28px 8px; color:#71818b; text-align:center; }.feedback-message { padding:14px; border:1px solid #d9e9ee; border-radius:15px; background:#fff; }.feedback-message header { display:flex; justify-content:space-between; gap:10px; color:#316077; }.feedback-message time { color:#81949c; font-size:12px; }.feedback-message p { margin:9px 0 0; color:#425a67; line-height:1.65; white-space:pre-wrap; }
.feedback-gift-message { border-color:#f1d789; background:linear-gradient(145deg,#fffdf5,#fff8dd); }.feedback-gift { display:flex; align-items:center; gap:9px; margin-bottom:10px; padding:8px 10px; border-radius:12px; font-size:13px; font-weight:800; }.feedback-gift.unopened { color:#9b6510; background:#fff0b8; }.feedback-gift.opened { color:#31765a; background:#ddf5e7; }.feedback-gift-icon { display:inline-grid; place-items:center; width:30px; height:30px; border-radius:50%; font-size:21px; }.feedback-gift.unopened .feedback-gift-icon { animation:giftWiggle 1.15s ease-in-out infinite; background:#fff8db; }.feedback-gift.opened .feedback-gift-icon { background:#f2fff7; }.feedback-gift.opened { animation:giftOpen .38s ease-out both; }
@keyframes giftWiggle { 0%,100% { transform:rotate(-5deg) scale(1); } 50% { transform:rotate(5deg) scale(1.08); } } @keyframes giftOpen { from { transform:scale(.94); opacity:.55; } to { transform:scale(1); opacity:1; } }
.teacher-feedback-compose { padding:12px 22px 24px; }.teacher-feedback-compose textarea { width:100%; min-height:142px; box-sizing:border-box; resize:vertical; border:1px solid #b9d9e3; border-radius:13px; padding:12px; color:#365464; font:inherit; }.teacher-feedback-compose p { min-height:20px; margin:8px 0; color:#71818b; font-size:13px; }.teacher-group-info-content { padding:12px 22px 24px; }.teacher-group-profile { display:flex; align-items:center; gap:13px; padding:12px; border-radius:14px; background:#f2faf6; color:#315d4d; }.teacher-group-profile img,.teacher-group-profile .teacher-profile-avatar { width:62px; height:62px; border-radius:50%; object-fit:cover; }.teacher-profile-avatar { display:grid; place-items:center; background:#d8eee6; font-size:30px; }.teacher-group-members { display:flex; flex-wrap:wrap; gap:8px; margin-top:15px; }.teacher-group-members span { padding:7px 10px; border-radius:999px; background:#e8f3fa; color:#38657d; font-weight:700; }
.inbox-tabs { display:flex; gap:8px; padding:4px 22px 8px; border-bottom:1px solid #dbeaf0; }.inbox-tabs button { flex:1; border:0; border-radius:10px; padding:9px; color:#527080; background:#edf5f7; font:inherit; font-weight:800; cursor:pointer; }.inbox-tabs button.active { color:#fff; background:linear-gradient(135deg,#2ea47c,#377fbd); }.inbox-attachments { display:flex; flex-wrap:wrap; gap:10px; margin:10px 0 4px; }.inbox-attachments label { border:1px dashed #85b8ca; border-radius:10px; padding:7px 9px; color:#37677e; font-weight:700; cursor:pointer; }.inbox-attachments input { display:block; max-width:190px; margin-top:5px; font-size:12px; }.inbox-image { display:block; width:min(100%,360px); max-height:260px; margin-top:10px; object-fit:contain; border-radius:10px; background:#eef5f6; }.inbox-audio { display:block; width:100%; margin-top:10px; }.inbox-help { color:#66818e; }
.teacher-area-children { display:flex; flex-wrap:wrap; gap:7px; margin-top:12px; }.teacher-child-btn,.teacher-area-download-btn { border:0; border-radius:10px; padding:8px 10px; color:#315e76; background:#e9f5f8; font:inherit; font-weight:800; cursor:pointer; }.teacher-area-download-btn { width:100%; margin-top:14px; color:#fff; background:linear-gradient(135deg,#3d9a73,#2d7db2); }
.achievement-wall-modal { position:fixed; inset:0; z-index:6100; display:flex; align-items:center; justify-content:center; padding:18px; background:rgba(16,33,53,.58); }
.achievement-wall-modal.hidden { display:none; }
.achievement-wall-dialog { width:min(920px,100%); max-height:92vh; overflow:auto; border-radius:26px; background:linear-gradient(160deg,#fffdf6,#f4fbff); box-shadow:0 24px 70px rgba(0,0,0,.3); }
.achievement-wall-header { display:flex; justify-content:space-between; align-items:center; padding:22px 26px 18px; color:#284d69; border-bottom:1px solid #e1edf2; }
.achievement-wall-header p { margin:0 0 3px; color:#d3961b; font-weight:800; letter-spacing:.1em; font-size:12px; }
.achievement-wall-header h2 { margin:0; font-size:30px; }
.achievement-wall-summary { display:flex; align-items:center; justify-content:space-between; gap:16px; margin:18px 26px 6px; padding:14px 18px; border-radius:16px; color:#fff; background:linear-gradient(135deg,#445fbb,#5c9fc8); }
.achievement-wall-summary div { display:flex; align-items:baseline; gap:8px; }.achievement-wall-summary strong { font-size:28px; }.achievement-wall-summary span { font-weight:700; }
.daily-checkin-btn { border:1px solid rgba(255,255,255,.75); border-radius:999px; padding:9px 14px; color:#335783; background:#fff; font:inherit; font-weight:800; cursor:pointer; }.daily-checkin-btn:disabled { opacity:.75; cursor:default; }
.achievement-wall-hint { margin:10px 28px 18px; color:#6e7d87; font-size:14px; }
.achievement-categories { display:grid; gap:16px; padding:0 26px 26px; }
.achievement-category { padding:16px; border:1px solid #e1ebed; border-radius:18px; background:rgba(255,255,255,.8); }
.achievement-category-head { display:flex; justify-content:space-between; align-items:center; gap:12px; margin-bottom:12px; }.achievement-category-head h3 { margin:0; color:#315e76; font-size:18px; }.achievement-category-head p { margin:4px 0 0; color:#758892; font-size:13px; }.achievement-category-head>strong { min-width:52px; padding:7px 9px; border-radius:999px; color:#3d7190; background:#e3f3fb; text-align:center; }
.achievement-grid { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:10px; }
.achievement-card { position:relative; min-height:142px; padding:12px 10px; border-radius:14px; text-align:center; font:inherit; cursor:default; overflow:hidden; }.achievement-card .achievement-icon { display:block; margin-bottom:4px; font-size:32px; }.achievement-card .achievement-name { display:block; font-weight:900; font-size:14px; }.achievement-card small { display:block; margin-top:6px; line-height:1.35; font-size:11px; }
.achievement-card.locked { border:1px dashed #bdc4c8; color:#8f999e; background:#eef1f2; filter:grayscale(1); }.achievement-card.locked small { color:#879196; }
.achievement-card.unlocked { color:#4c3a18; animation:achievement-sparkle .8s ease both; }.achievement-card.unlocked::before { content:'✦ ✧'; position:absolute; top:7px; right:8px; color:#fff; font-size:13px; animation:achievement-twinkle 1.6s ease-in-out infinite; }.achievement-card.tier-1 { border:2px solid #c98c5a; background:linear-gradient(145deg,#f9e2ce,#c99770); }.achievement-card.tier-2 { border:2px solid #aebcc7; background:linear-gradient(145deg,#f6fbff,#c7d4de); }.achievement-card.tier-3 { border:2px solid #e3b92f; background:linear-gradient(145deg,#fff5b9,#e8be43); }.achievement-card.tier-4 { border:2px solid #4fbfd2; background:linear-gradient(145deg,#d8f8ff,#70c9e6); }
.achievement-loading { margin:0; padding:26px; color:#71808a; text-align:center; }@keyframes achievement-sparkle { from { transform:scale(.88); opacity:0; } to { transform:scale(1); opacity:1; } }@keyframes achievement-twinkle { 50% { transform:scale(1.35) rotate(20deg); opacity:.5; } }
@media (max-width:650px) { .achievement-wall-btn span:last-child{display:none}.achievement-wall-btn{padding:10px}.achievement-wall-header{padding:18px}.achievement-wall-header h2{font-size:25px}.achievement-wall-summary{margin:14px 16px 6px}.achievement-wall-hint{margin:10px 18px 15px}.achievement-categories{padding:0 16px 18px}.achievement-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.achievement-card{min-height:128px}.achievement-category{padding:13px} }
.future-mode .map-background { filter: none; transition: filter .35s ease; }
.future-mode .map-area.under-construction { border: 3px dashed #7b8790; background: rgba(222,227,230,.88); box-shadow:none; }
.future-mode .map-area.under-construction .area-label { color:#47525a; background:rgba(255,255,255,.86); }
.future-mode .map-area.under-construction .area-label::after { content:' 🏗️ 待建设'; display:block; font-size:12px; }
.future-mode .map-area.future-built { border-color:rgba(77,165,216,.92); background:transparent; box-shadow:0 0 14px rgba(72,192,170,.58); }
.future-mode .map-area.future-built .area-label { background:rgba(18,106,115,.88); color:#fff; }
@media (max-width: 650px) { .mode-selector-card{padding:24px 16px}.mode-options{gap:12px}.campus-mode-option{min-height:280px;width:48vw}.campus-mode-option img{height:175px}.campus-mode-option span{font-size:23px} }