/**
 * 全局样式
 * 响应式适配：使用固定基准字体 + vw 布局
 */

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

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  color: #333;
  background-color: #f5f5f5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  white-space: normal;
  word-break: keep-all;
  overflow-wrap: break-word;
}

.page {
  min-height: 100vh;
  background-color: #f5f5f5;
}

/* Toast 样式 */
.toast {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 14px;
  z-index: 9999;
  display: none;
}

.toast.show {
  display: block;
}

/* Loading 样式 */
.loading {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 9998;
}

.loading.hide {
  display: none;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid #f3f3f3;
  border-top: 4px solid #2B6DE5;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.loading-text {
  color: #fff;
  margin-top: 12px;
  font-size: 14px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* TabBar 样式 */
.tabbar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: space-around;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
  z-index: 1000;
}

.tabbar-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  height: 100%;
}

.tabbar-icon {
  width: 24px;
  height: 24px;
  margin-bottom: 4px;
}

.tabbar-text {
  font-size: 10px;
  color: #999;
}

.tabbar-item.active .tabbar-text {
  color: #2B6DE5;
}

/* 页面容器 */
.page-container {
  padding-bottom: 56px;
}

/* 返回按钮样式 */
.back-btn {
  position: fixed;
  top: 20px;
  left: 20px;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  cursor: pointer;
  z-index: 1001;
  font-size: 20px;
  color: #333;
}

.back-btn.blue {
  background: rgba(43, 109, 229, 0.9);
  color: #fff;
}