/* 全站样式增强 */

body {
  font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
  background: linear-gradient(to bottom, #f5f5f5 0%, #e8e8e8 100%);
  color: #333;
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

* {
  box-sizing: border-box;
}

a {
  color: #0066cc;
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: #004499;
  text-decoration: underline;
}

nav {
  background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
  color: #fff;
  padding: 1rem;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: nowrap;
  justify-content: space-between;
  align-items: center;
}

nav li {
  flex: 1 1 0;
  min-width: 0;
  text-align: center;
}

nav a {
  color: #fff;
  padding: 0.5rem;
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  border-radius: 4px;
  transition: background 0.3s ease;
}

nav a:hover {
  background: rgba(255, 255, 255, 0.1);
  text-decoration: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
  margin: 1rem 0;
}

.info-item {
  background: linear-gradient(135deg, #ecf0f1 0%, #d5dbdb 100%);
  padding: 0.8rem;
  border-radius: 4px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.info-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.info-label {
  font-weight: bold;
  color: #2c3e50;
  margin-bottom: 0.3rem;
  font-size: 0.9rem;
}

h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  line-height: 1.2;
}

button {
  cursor: pointer;
  transition: all 0.3s ease;
}

button:hover {
  opacity: 0.9;
}

@media (max-width: 768px) {
  nav {
    padding: 0.5rem;
  }

  nav a {
    font-size: 0.85rem;
    padding: 0.3rem;
  }

  .container {
    padding: 0.5rem;
  }

  .info-grid {
    grid-template-columns: 1fr 1fr;
  }

  h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.3rem;
  }
}

@media (max-width: 480px) {
  nav a {
    font-size: 0.75rem;
    padding: 0.25rem;
  }

  .info-grid {
    grid-template-columns: 1fr;
  }
}

/* UI风格变体 */
.ui-style-3 {
  --primary-color: #667eea;
  --secondary-color: #764ba2;
  --accent-color: #f093fb;
}

/* 增强效果 */
article {
  transition: box-shadow 0.3s ease;
}

article:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

section {
  animation: fadeIn 0.5s ease-in;
}

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