/* 全局样式重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', sans-serif, -apple-system, BlinkMacSystemFont, 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: #EDEEF1;
  color: #333;
}

/* 导航栏样式 */
.navbar {
  background-color: #2c3e50;
  color: white;
  padding: 1rem 2rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.navbar-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: bold;
  text-decoration: none;
  color: white;
}

.navbar-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.navbar-menu a {
  color: white;
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  transition: background-color 0.3s;
}

.navbar-menu a:hover,
.navbar-menu a.active {
  background-color: #34495e;
}

/* 主内容区域 */
#app-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0;
  background-color: #EDEEF1;
  min-height: calc(100vh - 80px);
}

/* 恢复表单页面的特殊处理 */
#app-content .recovery-form-page {
  margin: 10px;
  max-width: 100%;
}

/* 页面容器 */
.page-container {
  animation: fadeIn 0.3s ease-in;
}

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

.page-container h1 {
  color: #2c3e50;
  margin-bottom: 1.5rem;
  font-size: 2.5rem;
}

.content-box {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.content-box p {
  margin-bottom: 1rem;
  color: #555;
}

.content-box ul {
  margin: 1rem 0;
  padding-left: 2rem;
}

.content-box li {
  margin-bottom: 0.5rem;
  color: #666;
}

/* 演示区域 */
.demo-section {
  margin-top: 2rem;
  padding: 1.5rem;
  background-color: #f8f9fa;
  border-radius: 6px;
  border-left: 4px solid #3498db;
}

.demo-section h2 {
  color: #2c3e50;
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.demo-section code {
  background-color: #e9ecef;
  padding: 0.2rem 0.4rem;
  border-radius: 3px;
  font-family: 'Courier New', monospace;
  color: #e83e8c;
}

/* 信息卡片 */
.info-card {
  margin-top: 2rem;
}

.info-card h2 {
  color: #2c3e50;
  margin-bottom: 1.5rem;
  font-size: 1.8rem;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.feature-item {
  padding: 1.5rem;
  background-color: #f8f9fa;
  border-radius: 6px;
  border: 1px solid #dee2e6;
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.feature-item h3 {
  color: #2c3e50;
  margin-bottom: 0.5rem;
  font-size: 1.2rem;
}

.feature-item p {
  color: #666;
  font-size: 0.95rem;
}

/* 按钮样式 */
.action-buttons {
  margin-top: 2rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s;
  font-weight: 500;
}

.btn-primary {
  background-color: #3498db;
  color: white;
}

.btn-primary:hover {
  background-color: #2980b9;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(52, 152, 219, 0.3);
}

.btn-secondary {
  background-color: #95a5a6;
  color: white;
}

.btn-secondary:hover {
  background-color: #7f8c8d;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(149, 165, 166, 0.3);
}

/* 错误提示 */
.error {
  padding: 1rem;
  background-color: #f8d7da;
  color: #721c24;
  border-radius: 6px;
  border: 1px solid #f5c6cb;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .navbar-container {
    flex-direction: column;
    gap: 1rem;
  }

  .navbar-menu {
    flex-direction: column;
    gap: 0.5rem;
    width: 100%;
  }

  .navbar-menu a {
    text-align: center;
  }

  .content-box {
    padding: 1.5rem;
  }

  .page-container h1 {
    font-size: 2rem;
  }

  .feature-list {
    grid-template-columns: 1fr;
  }

  .action-buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}