/**
 * 全局样式
 */

/* 重置样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  width: 100%;
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: #333;
  background-color: #f5f5f5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 移动端适配 */
body {
  max-width: 750px;
  margin: 0 auto;
  background-color: #fff;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}

/* 应用容器 */
#app-container {
  width: 100%;
  min-height: calc(100vh - 60px); /* 减去底部导航栏高度 */
  padding-bottom: 20px;
  overflow-y: auto;
}

/* 底部导航栏 */
.tabbar {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 750px;
  height: 60px;
  display: flex;
  justify-content: space-around;
  align-items: center;
  background-color: #fff;
  border-top: 1px solid #e0e0e0;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
  z-index: 1000;
}

.tabbar-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  padding: 5px 0;
}

.tabbar-item:hover {
  background-color: #f9f9f9;
}

.tabbar-item.active .tabbar-icon {
  transform: scale(1.1);
}

.tabbar-item.active .tabbar-label {
  color: #6366f1;
  font-weight: 600;
}

.tabbar-icon {
  font-size: 24px;
  margin-bottom: 2px;
  transition: transform 0.3s ease;
}

.tabbar-label {
  font-size: 12px;
  color: #666;
  transition: color 0.3s ease;
}

/* 页面通用样式 */
.page {
  width: 100%;
  min-height: 100vh;
  padding: 20px;
  padding-bottom: 80px; /* 为底部导航留空间 */
}

.page-title {
  font-size: 28px;
  font-weight: bold;
  color: #1a1a1a;
  margin-bottom: 20px;
  text-align: center;
}

.page-subtitle {
  font-size: 14px;
  color: #666;
  text-align: center;
  margin-bottom: 30px;
}

/* 卡片样式 */
.card {
  background-color: #fff;
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 15px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  transition: box-shadow 0.3s ease;
}

.card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.card-title {
  font-size: 18px;
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 12px;
}

.card-content {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
}

/* 按钮样式 */
.btn {
  display: inline-block;
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 500;
  color: #fff;
  background-color: #6366f1;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: center;
  user-select: none;
}

.btn:hover {
  background-color: #4f46e5;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

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

.btn-block {
  width: 100%;
  display: block;
}

.btn-secondary {
  background-color: #e5e7eb;
  color: #4b5563;
}

.btn-secondary:hover {
  background-color: #d1d5db;
}

.btn-disabled {
  background-color: #d1d5db;
  color: #9ca3af;
  cursor: not-allowed;
}

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

/* 表单样式 */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: #374151;
  margin-bottom: 8px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 16px;
  color: #1a1a1a;
  background-color: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  outline: none;
  transition: all 0.3s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  background-color: #fff;
  border-color: #6366f1;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

/* 加载状态 */
.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid #e5e7eb;
  border-top-color: #6366f1;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-text {
  margin-top: 15px;
  font-size: 14px;
  color: #666;
}

/* 空状态 */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  text-align: center;
}

.empty-icon {
  font-size: 64px;
  margin-bottom: 15px;
  opacity: 0.3;
}

.empty-text {
  font-size: 16px;
  color: #9ca3af;
}

/* 错误页面 */
.error-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 40px 20px;
  text-align: center;
}

.error-icon {
  font-size: 72px;
  margin-bottom: 20px;
}

.error-title {
  font-size: 24px;
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 10px;
}

.error-message {
  font-size: 14px;
  color: #666;
  margin-bottom: 30px;
}

/* 工具类 */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.mt-30 { margin-top: 30px; }

.mb-10 { margin-bottom: 10px; }
.mb-20 { margin-bottom: 20px; }
.mb-30 { margin-bottom: 30px; }

.p-10 { padding: 10px; }
.p-20 { padding: 20px; }

.hidden { display: none !important; }
.visible { display: block !important; }

/* 响应式设计 */
@media (max-width: 480px) {
  body {
    font-size: 14px;
  }

  .page {
    padding: 15px;
  }

  .page-title {
    font-size: 24px;
  }

  .btn {
    padding: 10px 20px;
    font-size: 14px;
  }
}