/* 启动页面样式 */
.splash-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  opacity: 1;
  transition: opacity 0.5s ease-out;
}

body.dark-mode .splash-screen {
  background-color: #000;
}

.splash-screen.fade-out {
  opacity: 0;
}

.splash-image {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

/* 通用重置与基础 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-touch-callout: none; /* iOS 防长按弹出菜单 */
  -webkit-user-select: none;   /* iOS 禁止选择文本 */
  user-select: none;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
  background-color: #f5f5f7;
  color: #333;
  overflow-x: hidden; /* 禁止横向滚动 */
  transition: background-color 0.3s ease, color 0.3s ease;
}
body.dark-mode {
  background-color: #1c1c1e;
  color: #eee;
}
img, iframe {
  max-width: 100%;
  height: auto;
}
a {
  text-decoration: none;
  color: inherit;
}

/* iOS卡片阴影与圆角 */
.ios-card {
  background-color: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  margin: 10px;
  border: 1px solid rgba(0,0,0,0.1);
}
.ios-card-content {
  padding: 12px;
}
body.dark-mode .ios-card {
  background-color: #2c2c2e;
  box-shadow: none;
  color: #fff;
}

/* 隐藏默认滚动条 */
::-webkit-scrollbar {
  width: 0px;
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: #ccc;
}




/*******************************************************
 * 1.顶部简易标题 + 搜索栏
 *******************************************************/
.ios-header {
  background-color: #f8f8f8;
  padding: 10px 16px;
  border-bottom: 1px solid #ddd;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
body.dark-mode .ios-header {
  background-color: #2c2c2e;
  border-bottom: 1px solid #444;
}
.ios-header-title {
  font-size: 20px;
  font-weight: 600;
  text-align: center;
}

/* 搜索栏容器 */
.search-bar {
  display: flex;
  align-items: center;
  background-color: #e8e8ed;
  border-radius: 10px;
  padding: 6px 10px;
}
body.dark-mode .search-bar {
  background-color: #444;
}
.search-bar input {
  border: none;
  background: transparent;
  outline: none;
  flex: 1;
  font-size: 14px;
  color: #333;
}
body.dark-mode .search-bar input {
  color: #fff;
}
.search-bar .search-icon {
  width: 18px;
  height: 18px;
  margin-right: 6px;
  opacity: 0.5;
}

/*******************************************************
 * 骨架屏 & Loading动画
 *******************************************************/
@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

.skeleton-loading {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

body.dark-mode .skeleton-loading {
  background: linear-gradient(90deg, #2c2c2e 25%, #3a3a3c 50%, #2c2c2e 75%);
  background-size: 200% 100%;
}

/* 商户展示区域 */
.merchant-row {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding: 4px 0 14px;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x mandatory;
}

.merchant-row::-webkit-scrollbar {
  display: none;
}

.merchant-container {
  display: block;
  margin-bottom: 24px;
}

.merchant-row {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding: 4px 0 14px;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x mandatory;
}

.merchant-row::-webkit-scrollbar {
  display: none;
}
.merchant-container {
  display: block;
  margin-bottom: 24px;
}

/* 分类卡片骨架屏 */
.category-skeleton {
  width: 120px;
  height: 120px;
  margin: 10px;
  border-radius: 12px;
  flex-shrink: 0;
  position: relative;
}
.category-skeleton::before {
  content: '';
  width: 48px;
  height: 48px;
  border-radius: 50%;
  margin-bottom: 15px;
  display: block;
  position: absolute;
  top: 15px;
  left: calc(50% - 24px);
  background: inherit;
  background-size: inherit;
  animation: inherit;
}
.category-skeleton::after {
  content: '';
  width: 80%;
  height: 14px;
  border-radius: 4px;
  background: inherit;
  background-size: inherit;
  animation: inherit;
  position: absolute;
  bottom: 15px;
  left: 10%;
}

/* Banner骨架屏 */
.banner-skeleton {
  height: 120px;
  margin: 10px;
  border-radius: 12px;
}

/* 商家列表骨架屏 */
.merchant-skeleton {
  height: 80px;
  margin: 8px 10px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  padding: 10px;
}
.merchant-skeleton::before {
  content: '';
  width: 60px;
  height: 60px;
  border-radius: 8px;
  margin-right: 15px;
  background: inherit;
  background-size: inherit;
  animation: inherit;
}
.merchant-skeleton::after {
  content: '';
  flex: 1;
  height: 40px;
  border-radius: 4px;
  background: inherit;
  background-size: inherit;
  animation: inherit;
}

/*******************************************************
 * 2.功能按钮行
 *******************************************************/
.functions-row {
  display: flex;
  justify-content: space-around;
  align-items: center;
  padding: 15px 0;
  margin-bottom: 10px;
}
body.dark-mode .functions-row {
  background-color: #2c2c2e;
  border-bottom: 1px solid #444;
}
.function-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  color: #333;
  width: 20%;
  cursor: pointer;
  padding: 8px 0;
  transition: all 0.3s ease;
}
body.dark-mode .function-item {
  color: #fff;
}
.function-item:active {
  transform: scale(0.95);
  background-color: rgba(255,0,0,0.05);
}
.function-item-icon {
  width: 28px;
  height: 28px;
  margin-bottom: 6px;
}
.function-item-text {
  font-size: 12px;
  line-height: 1.2;
}
.function-item.disabled {
  opacity: 0.4;
}

/*******************************************************
 * 3.首页分类卡片
 *******************************************************/
#home-category-container {
  padding: 10px;
}
#category-list-wrap {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding-bottom: 10px;
}
#category-list-wrap::-webkit-scrollbar {
  display: none;
}
.category-card {
  width: 120px;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  background-color: #fff;
  text-align: center;
  overflow: hidden;
  cursor: pointer;
  flex-shrink: 0;
}
body.dark-mode .category-card {
  background-color: #2c2c2e;
  box-shadow: none;
}
.category-icon-container {
  padding: 14px;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 50px;
  background-color: transparent;
}
.category-icon-container img {
  max-width: 48px;
  max-height: 48px;
}
.category-icon-container svg {
  width: 48px;
  height: 48px;
  fill: #666;
}
.category-text {
  border-top: 1px solid #eee;
  padding: 8px 0;
  font-size: 14px;
  color: #333;
}
body.dark-mode .category-text {
  color: #fff;
  border-top: 1px solid #555;
}

/*******************************************************
 * 4.Slider Banner & 底部Banner
 *******************************************************/
.slider-group {
  margin: 20px 10px;
  overflow: hidden;
  background-color: #fff;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  padding: 15px;
}
body.dark-mode .slider-group {
  background-color: #2c2c2e;
}
.slider-header {
  margin-bottom: 12px;
}
.slider-title {
  font-size: 18px;
  font-weight: bold;
  margin-bottom: 6px;
  color: #333;
}
body.dark-mode .slider-title {
  color: #fff;
}
.slider-primary-text {
  font-size: 14px;
  color: #666;
}
.slider-secondary-text {
  font-size: 13px;
  color: #999;
}
.slider-row {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding: 4px 0 14px;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x mandatory;
}
.slider-row::-webkit-scrollbar {
  display: none;
}
.slider-item {
  width: 180px;
  flex-shrink: 0;
  border-radius: 12px;
  overflow: hidden;
  background-color: #f8f8f8;
  text-align: center;
  box-shadow: 0 1px 2px rgba(0,0,0,0.05);
  scroll-snap-align: start;
  transition: transform 0.2s;
}
body.dark-mode .slider-item {
  background-color: #3a3a3c;
}
.slider-item:active {
  transform: scale(0.98);
}
.slider-item img {
  width: 100%;
  height: 120px;
  object-fit: cover;
  display: block;
}
.slider-text {
  font-size: 13px;
  padding: 8px 10px;
  color: #333;
}
body.dark-mode .slider-text {
  color: #fff;
}

#banner-top, #banner-bottom {
  width: 100%;
  max-width: 900px;
  display: none; 
  margin: 0 auto; 
  padding: 0;
}
.banner-slot {
  width: 100%;
  height: 100px;
  margin-bottom: 10px;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  border-radius: 12px;
  background-color: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
body.dark-mode .banner-slot {
  background-color: #2c2c2e;
  box-shadow: none;
}
.banner-slot img {
  max-height: 100%;
  object-fit: cover;
}

/*******************************************************
 * 5.底部导航栏
 *******************************************************/
.ios-tabbar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: #fff;
  border-top: 1px solid #ddd;
  display: flex;
  justify-content: space-around;
  align-items: center;
  padding: 6px 0;
  z-index: 5000; 
}
body.dark-mode .ios-tabbar {
  background-color: #2c2c2e;
  border-top: 1px solid #444;
}
.tabbar-item {
  flex: 1;
  text-align: center;
  cursor: pointer;
}
.tabbar-icon {
  width: 24px;
  height: 24px;
  display: block;
  margin: 0 auto 2px auto;
  opacity: 0.8;
}
.tabbar-text {
  font-size: 10px;
  color: #333;
}
body.dark-mode .tabbar-text {
  color: #fff;
}
.tabbar-item.active .tabbar-text {
  color: #ff3b30;
}
.tabbar-item.active .tabbar-icon {
  fill: #ff3b30;
}

/*******************************************************
 * 6.弹窗: 考试设置
 *******************************************************/
#settings-modal-mask {
  position: fixed;
  inset: 0;
  background-color: rgba(0,0,0,0.3);
  display: none;
  z-index: 9998; 
}
#settings-modal {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%,-50%);
  width: 300px;
  background-color: #fff;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}
body.dark-mode #settings-modal {
  background-color: #2c2c2e;
  color: #fff;
}
#settings-modal-header {
  background-color: #f8f8f8;
  padding: 14px;
  text-align: center;
  font-size: 16px;
  font-weight: 600;
  border-bottom: 1px solid #ddd;
}
body.dark-mode #settings-modal-header {
  background-color: #3a3a3c;
  border-bottom: 1px solid #444;
}
#settings-modal-body {
  padding: 10px 14px;
}
#settings-modal-footer {
  padding: 10px;
  display: flex;
  justify-content: space-around;
  border-top: 1px solid #ddd;
}
body.dark-mode #settings-modal-footer {
  border-top: 1px solid #444;
}
.ios-switch-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 12px 0;
}
.ios-switch-label {
  font-size: 14px;
  color: #333;
}
body.dark-mode .ios-switch-label {
  color: #fff;
}
.switch {
  position: relative;
  display: inline-block;
  width: 46px;
  height: 26px;
}
.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}
.sliderSwitch {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0;
  right: 0; bottom: 0;
  background-color: #ccc;
  border-radius: 26px;
  transition: .4s;
}
.sliderSwitch:before {
  position: absolute;
  content: "";
  height: 20px; width: 20px;
  left: 3px; bottom: 3px;
  background-color: white;
  border-radius: 50%;
  transition: .4s;
}
input:checked + .sliderSwitch {
  background-color: #ff3b30;
}
input:checked + .sliderSwitch:before {
  transform: translateX(20px);
}

#settings-modal-footer button {
  border: none;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 14px;
  cursor: pointer;
  background-color: #f2f2f7;
  color: #333;
}
body.dark-mode #settings-modal-footer button {
  background-color: #444;
  color: #fff;
}
#settings-modal-footer button:active {
  opacity: 0.7;
}
#settings-cancel-btn {
  background-color: #f2f2f7;
}
#settings-ok-btn {
  background-color: #ff3b30;
  color: #fff;
}
body.dark-mode #settings-ok-btn {
  background-color: #ff453a;
  color: #fff;
}

/*******************************************************
 * 7. 考试页面、结果页面等
 *******************************************************/
#container,
#quiz-container,
#result-container,
#mistake-review-container,
#current-mistakes-container,
#favorites-container,
#summary-container,
#campus-life-container,
#car-surrounding-container,
#personal-center-container {
  max-width: 900px;
  margin: 10px auto 50px auto;
  padding: 8px;
}

#quiz-container,
#result-container,
#mistake-review-container,
#current-mistakes-container,
#favorites-container,
#summary-container,
#campus-life-container,
#car-surrounding-container,
#personal-center-container {
  display: none;
}
body.dark-mode #quiz-container,
body.dark-mode #result-container,
body.dark-mode #mistake-review-container,
body.dark-mode #current-mistakes-container,
body.dark-mode #favorites-container,
body.dark-mode #summary-container,
body.dark-mode #campus-life-container,
body.dark-mode #car-surrounding-container,
body.dark-mode #personal-center-container {
  color: #fff;
}

/* 版本信息卡片 */
.version-info-card {
  background-color: #f2f2f7;
  border-radius: 12px;
  padding: 16px;
  margin: 16px 0;
}
body.dark-mode .version-info-card {
  background-color: #2c2c2e;
}
.version-info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.ios-update-btn {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 8px;
  background-color: #007aff;
  color: #fff;
  font-size: 16px;
  font-weight: 500;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}
.ios-update-btn[data-status="latest"],
.ios-update-btn[data-status="updating"] {
  pointer-events: none;
  opacity: 0.7;
}
.ios-update-btn[data-status="latest"] {
  background-color: #34c759;
}
.ios-update-btn[data-status="needUpdate"] {
  background-color: #ff9500;
}
.update-loading-icon {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 1s linear infinite;
  display: none;
}
.ios-update-btn[data-status="updating"] .update-loading-icon {
  display: block;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* 考题容器 */
#quiz-container .ios-card-content {
  text-align: center;
}
#sheet-name {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  text-align: center;
  word-wrap: break-word;
  word-break: break-all;
}
#question {
  font-size: 16px;
  margin: 10px 0;
  background-color: #f2f2f7;
  border-radius: 12px;
  padding: 12px;
  min-height: 50px;
  line-height: 1.4;
  white-space: pre-wrap;
}
body.dark-mode #question {
  background-color: #3a3a3c;
  color: #fff;
}

#normal-quiz-controls {
  margin-top: 20px;
}

#normal-quiz-controls button {
  width: 100%;
  margin: 8px 0;
  padding: 12px;
  border: none;
  border-radius: 12px;
  background-color: #f2f2f7;
  color: #007aff;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s;
}

body.dark-mode #normal-quiz-controls button {
  background-color: #2c2c2e;
  color: #0a84ff;
}

#normal-quiz-controls button:active {
  background-color: #e5e5ea;
}

body.dark-mode #normal-quiz-controls button:active {
  background-color: #3a3a3c;
}

#toggle-answer-btn {
  margin-top: 10px;
}

#submit-quiz-btn {
  background-color: #34c759 !important;
  color: white !important;
}

#pause-exam-btn {
  background-color: #ff3b30 !important;
  color: white !important;
}
#image {
  margin: 10px auto;
  background-color: #fff;
  border-radius: 12px;
  padding: 10px;
  display: none;
  justify-content: center;
  align-items: center;
}
body.dark-mode #image {
  background-color: #3a3a3c;
}
#image img {
  max-width: 100%;
  max-height: 200px;
  object-fit: contain;
  border-radius: 8px;
}
.options {
  margin-top: 10px;
  display: flex;
  justify-content: space-around;
  gap: 10px;
}
.options button {
  flex: 1;
  border: none;
  border-radius: 12px;
  padding: 12px;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  cursor: pointer;
}
.options .correct {
  background-color: #34c759;
  border: 2px solid #fff;
}
.options .wrong {
  background: #dc3545; /* 红色 */
  color: #fff;
  border: 2px solid #fff;
  position: relative;
}
.options .wrong.highlight {
  background: #c82333;
  box-shadow: 0 0 10px #c82333;
}
.options .wrong span {
  text-shadow: -10px 0 #fff, 0 1px #fff, 1px 0 #fff, 0 -1px #fff;
}

.options button.highlight {
  box-shadow: inset 0 0 0 3px rgba(255,255,255,0.5);
}

.controls {
  margin-top: 10px;
  display: flex;
  justify-content: space-around;
  gap: 10px;
}
.controls button {
  flex: 1;
  background-color: #f2f2f7;
  border: none;
  border-radius: 12px;
  padding: 10px;
  font-size: 14px;
  color: #333;
  cursor: pointer;
  box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}
body.dark-mode .controls button {
  background-color: #444;
  color: #fff;
  box-shadow: none;
}
#favorite-btn {
  max-width: 60px;
}
#favorite-btn.favorited {
  background-color: #ffcc00;
  color: #fff !important;
  font-weight: bold;
}

#remaining-questions,
#timer {
  text-align: center;
  margin-top: 6px;
  font-size: 14px;
  color: #666;
}
body.dark-mode #remaining-questions,
body.dark-mode #timer {
  color: #bbb;
}
#answer-display {
  font-size: 14px;
  margin-top: 10px;
  white-space: pre-wrap;
  background-color: #fff;
  padding: 10px;
  border-radius: 12px;
  display: block;
}
body.dark-mode #answer-display {
  background-color: #3a3a3c;
  color: #fff;
}
.quiz-bottom-buttons {
  text-align: center;
  margin-top: 10px;
  display: flex;
  gap: 8px;
  padding: 0 10px;
}
.quiz-bottom-buttons button {
  flex: 1;
  background-color: #f2f2f7;
  color: #ff3b30;
  border: 1px solid rgba(255,0,0,0.1);
  border-radius: 12px;
  padding: 12px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s;
}
body.dark-mode .quiz-bottom-buttons button {
  background-color: #2c2c2e;
  color: #ff453a;
  border: 1px solid rgba(255,69,58,0.3);
}
.quiz-bottom-buttons button:active {
  background-color: #e5e5ea;
}
body.dark-mode .quiz-bottom-buttons button:active {
  background-color: #3a3a3c;
}

/* 大乱斗banner */
.battle-banner {
  width: 100%;
  height: 120px;
  margin-bottom: 20px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  border: 1px solid #e5e5ea;
}

/* 大乱斗信息区域 */
.battle-info-container {
  display: flex;
  justify-content: space-around;
  align-items: center;
  background-color: #fff0cc;
  padding: 8px;
  border-radius: 12px;
  margin-bottom: 8px;
  font-weight: bold;
}
.battle-info-container span {
  font-size: 14px;
  color: #ff9500;
}
body.dark-mode .battle-info-container {
  background-color: #3a3a3c;
  color: #fff;
}

body.dark-mode .battle-banner {
  border-color: #3a3a3c;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.battle-banner-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 大乱斗顶部条 */
#battle-header {
  display: flex;
  justify-content: space-around;
  align-items: center;
  background-color: #fff0cc;
  padding: 8px;
  border-radius: 12px;
  margin-bottom: 8px;
  font-weight: bold;
}
#battle-header span {
  font-size: 14px;
  color: #ff9500;
}
body.dark-mode #battle-header {
  background-color: #3a3a3c;
  color: #fff;
}

/* 大乱斗加载进度条 */
#battle-loading-bar-wrap {
  margin: 6px 0;
  background-color: #eee;
  border-radius: 12px;
  overflow: hidden;
  height: 24px;
  display: none;
}
#battle-loading-bar {
  background-color: #ff9500;
  color: #fff;
  height: 24px;
  width: 0%;
  text-align: center;
  line-height: 24px;
  font-weight: bold;
}

/* 考试结果 */
.result-banner {
  margin: -16px -16px 16px -16px;
  overflow: hidden;
  border-radius: 12px 12px 0 0;
}

.result-banner-img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.result-content {
  padding: 0 16px;
}

.result-item {
  display: flex;
  align-items: center;
  margin-bottom: 12px;
  padding: 12px;
  background-color: #f2f2f7;
  border-radius: 12px;
}

body.dark-mode .result-item {
  background-color: #2c2c2e;
}

.result-item-icon {
  width: 24px;
  height: 24px;
  margin-right: 12px;
  flex-shrink: 0;
}

.result-item p {
  margin: 0;
  font-size: 16px;
  line-height: 1.4;
}

#score {
  font-size: 20px;
  font-weight: 600;
}

.score-excellent {
  color: #34C759;
}

.score-good {
  color: #007AFF;
}

.score-bad {
  color: #FF3B30;
}

.completion-text {
  text-align: center;
  color: #8e8e93;
  margin: 16px 0;
}

.result-buttons {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.primary-button,
.secondary-button {
  flex: 1;
  padding: 12px;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
}

.primary-button {
  background-color: #007AFF;
  color: white;
}

.secondary-button {
  background-color: #f2f2f7;
  color: #007AFF;
}

body.dark-mode .secondary-button {
  background-color: #2c2c2e;
}

/* 本次错题容器 */
#current-mistakes-container h2 {
  text-align: center;
  margin-bottom: 10px;
}
#current-mistakes-list > div {
  margin-bottom: 15px;
  padding: 10px;
  background-color: #fff;
  border-radius: 12px;
}
body.dark-mode #current-mistakes-list > div {
  background-color: #3a3a3c;
  color: #fff;
}

/*收藏容器样式*/
.page-header {
  background-color: #f2f2f7;
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav-bar {
  padding: 4px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.back-button {
  background: none;
  border: none;
  padding: 0;
  display: flex;
  align-items: center;
  color: #007aff;
  font-size: 17px;
  cursor: pointer;
}

.back-button svg {
  margin-right: 4px;
}

.page-title {
  font-size: 34px;
  font-weight: 700;
  padding: 0 16px;
  margin: 4px 0 12px;
  color: #000;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.search-wrapper {
  padding: 0 16px 16px;
}

.search-input-wrapper {
  position: relative;
  background-color: rgba(118, 118, 128, 0.12);
  border-radius: 10px;
  padding: 8px 0;
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: #8e8e93;
}

.search-input {
  width: 100%;
  padding: 0 16px 0 36px;
  border: none;
  background: none;
  font-size: 17px;
  color: #000;
}

.search-input::placeholder {
  color: #8e8e93;
}

.favorites-list {
  padding: 8px 16px;
}

.favorite-card {
  position: relative;
  margin-bottom: 8px;
  border-radius: 10px;
  background: #fff;
  touch-action: pan-y pinch-zoom;
  overflow: hidden;
}

.favorite-card-content {
  padding: 16px;
  background-color: #fff;
  position: relative;
  z-index: 2;
  transition: transform 0.3s ease;
  width: 100%;
}

.favorite-question {
  font-size: 15px;
  line-height: 1.4;
  margin-bottom: 12px;
}

.favorite-card:not(.expanded) .favorite-question {
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  /* 添加标准属性和webkit前缀以提高兼容性 */
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
}

.favorite-details {
  margin-top: 12px;
}

.favorite-image {
  margin: 12px 0;
}

.favorite-image img {
  width: 100%;
  height: auto;
  border-radius: 8px;
}

.favorite-answer {
  background-color: #f2f2f7;
  border-radius: 8px;
  padding: 12px;
}

.answer-title {
  font-weight: 600;
  margin-bottom: 8px;
}

.answer-explanation {
  font-size: 14px;
  color: #666;
  line-height: 1.4;
}

.favorite-remove-btn {
  position: absolute;
  top: 0;
  right: 0;
  height: 100%;
  width: 80px;
  background-color: #ff3b30;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  z-index: 1;
  cursor: pointer;
}

/* 深色模式调整 */
body.dark-mode .page-header {
  background-color: #000;
}

body.dark-mode .page-title {
  color: #fff;
}

body.dark-mode .search-input-wrapper {
  background-color: rgba(118, 118, 128, 0.24);
}

body.dark-mode .search-input {
  color: #fff;
}

body.dark-mode .favorite-card-content {
  background-color: #1c1c1e;
  color: #fff;
}

body.dark-mode .favorite-answer {
  background-color: #2c2c2e;
}

body.dark-mode .answer-explanation {
  color: #999;
}

body.dark-mode .favorite-remove-btn {
  background-color: #ff453a;
}

/* 做题历史 */
#summary-container h2 {
  text-align: center;
  margin-bottom: 10px;
}
.history-card {
  margin-bottom: 10px;
  background-color: #fff;
  border-radius: 12px;
  padding: 10px 12px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  display: flex;
  flex-direction: column;
  cursor: pointer;
}
body.dark-mode .history-card {
  background-color: #3a3a3c;
  box-shadow: none;
  color: #fff;
}
.history-card-top {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  margin-bottom: 6px;
}
.history-card-top span {
  color: #444;
}
body.dark-mode .history-card-top span {
  color: #ddd;
}
.history-card-bottom {
  font-size: 12px;
  color: #666;
  display: flex;
  justify-content: space-around;
}
body.dark-mode .history-card-bottom {
  color: #bbb;
}
.history-card-bottom div {
  flex: 1;
  text-align: center;
}
.history-card-bottom div span {
  display: block;
}

/* 历史详情与返回按钮 */
#history-detail-container {
  margin-bottom: 10px;
}
#history-detail-container > div {
  margin-bottom: 15px;
  padding: 10px;
  background-color: #fff;
  border-radius: 12px;
}
body.dark-mode #history-detail-container > div {
  background-color: #3a3a3c;
  color: #fff;
}
#history-return-btn {
  border: none;
  border-radius: 12px;
  padding: 10px 20px;
  background-color: #007aff;
  color: #fff;
  font-size: 14px;
  cursor: pointer;
}
body.dark-mode #history-return-btn {
  background-color: #0a84ff;
}

/*******************************************************
 * 9. 合宿生活 & 汽车周边容器
 *******************************************************/
.life-category-list, .car-category-list {
  padding: 10px;
}
.life-item-card, .car-item-card {
  background-color: #fff;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  padding: 15px;
  text-align: center;
  cursor: pointer;
  transition: transform 0.2s ease;
}
.life-item-card:hover, .car-item-card:hover {
  transform: translateY(-2px);
}
body.dark-mode .life-item-card,
body.dark-mode .car-item-card {
  background-color: #3a3a3c;
  box-shadow: none;
  color: #fff;
}
.life-item-card img, .car-item-card img {
  width: 48px;
  height: 48px;
  object-fit: contain;
  margin-bottom: 8px;
}
.life-item-card .merchant-type, .car-item-card .merchant-type {
  font-size: 14px;
  color: #333;
}
body.dark-mode .life-item-card .merchant-type,
body.dark-mode .car-item-card .merchant-type {
  color: #fff;
}

/*******************************************************
 * 10. 个人中心
 *******************************************************/
#personal-center-container h2 {
  text-align: center;
  margin-bottom: 10px;
}
.theme-switch-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px;
  background-color: #fff;
  border-radius: 12px;
  margin-bottom: 10px;
}
body.dark-mode .theme-switch-row {
  background-color: #3a3a3c;
}
.theme-switch-label {
  font-size: 14px;
  color: #333;
}
body.dark-mode .theme-switch-label {
  color: #fff;
}
.theme-switch-row label.switch {
  margin-right: 10px;
}
.clear-history-btn {
  display: block;
  margin: 0 auto;
  margin-top: 20px;
  background-color: #ff3b30;
  color: #fff;
  border: none;
  border-radius: 12px;
  padding: 10px 20px;
  font-size: 14px;
  cursor: pointer;
  text-align: center;
  width: 120px;
}
.clear-history-btn:active {
  opacity: 0.7;
}

/*******************************************************
 * Popup弹窗(iOS风)
 *******************************************************/
#popup-container {
  position: fixed;
  z-index: 9999;
  bottom: 70px;
  right: 10px;
  pointer-events: none;
}
.popup-small {
  pointer-events: auto;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  width: 280px;
  overflow: hidden;
  margin-bottom: 10px;
}
body.dark-mode .popup-small {
  background: #2c2c2e;
  color: #fff;
}
.popup-small-content {
  display: flex;
  align-items: center;
  padding: 12px;
  position: relative;
}
.popup-diamond-icon {
  width: 40px;
  height: 40px;
  margin-right: 12px;
  object-fit: contain;
}
.popup-small-text {
  flex: 1;
}
.popup-small-title {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 4px;
}
.popup-small-secondary {
  font-size: 12px;
  color: #666;
}
body.dark-mode .popup-small-secondary {
  color: #999;
}
.popup-close-btn {
  position: absolute;
  right: 8px;
  top: 8px;
  width: 24px;
  height: 24px;
  border: none;
  background: transparent;
  color: #999;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.popup-close-btn svg {
  width: 20px;
  height: 20px;
}

/* 全屏弹窗 */
.popup-full {
  position: fixed;
  inset: 0;
  z-index: 10000;
  pointer-events: auto;
  display: none;
}
.popup-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.5);
}
.popup-full-content {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: #fff;
  border-radius: 12px;
  width: 90%;
  max-width: 400px;
  overflow: hidden;
}
body.dark-mode .popup-full-content {
  background: #2c2c2e;
  color: #fff;
}
.popup-full-image {
  width: 100%;
  height: auto;
  display: block;
}
.popup-full-text {
  padding: 16px;
}
.popup-full-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}
.popup-full-prime {
  font-size: 14px;
  color: #666;
  margin-bottom: 16px;
}
body.dark-mode .popup-full-prime {
  color: #999;
}
.popup-action-btn {
  width: 100%;
  padding: 12px;
  background: #007aff;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 12px;
  cursor: pointer;
}
.popup-full-secondary {
  font-size: 12px;
  color: #999;
  text-align: center;
}
body.dark-mode .popup-full-secondary {
  color: #ccc;
}
.popup-full .popup-close-btn {
  position: absolute;
  top: 8px;
  right: 8px;
}