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

body {
  font-family: "微软雅黑 Light", "Microsoft YaHei", sans-serif;
  background-color: #b6e7db;
  line-height: 1.5;
  min-height: 100vh;
}

/* 导航栏响应式设计 */
.nav-container {
  width: 100%;
  padding: 10px 20px;
  box-sizing: border-box;
  position: relative;
}

nav {
  background-color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  border: 1px solid #eee;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  padding: 8px 0;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  font-family: 'Segoe UI', sans-serif;
}

nav a {
  color: #007bff;
  padding: 12px 20px;
  text-decoration: none;
  border-radius: 5px;
  transition: background-color 0.2s, color 0.2s;
  white-space: nowrap;
  margin: 2px;
}

nav a:hover {
  background-color: #f2f2f2;
  color: #0056b3;
}

/* 主要内容容器 */
#app {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  box-sizing: border-box;
}

/* 专栏标题 */
.column-header {
  text-align: center;
  margin: 30px 0;
  color: #333;
}

.column-header h1 {
  font-size: 2.5em;
  margin-bottom: 10px;
  color: #007bff;
}

.column-header p {
  font-size: 1.1em;
  color: #666;
  max-width: 600px;
  margin: 0 auto;
}

/* 文章列表 */
.article-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
  margin: 30px auto;
  width: 100%;
  max-width: 1200px;
}

.article-card {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  padding: 25px;
  transition: transform 0.3s, box-shadow 0.3s;
  display: flex;
  flex-direction: column;
  min-height: 200px;
}

.article-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.article-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
  color: #333;
  line-height: 1.4;
}

.article-card .meta {
  font-size: 14px;
  color: #888;
  margin-bottom: 15px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.article-card .date {
  color: #007bff;
  font-weight: 500;
}

.article-card .category {
  background: #e3f2fd;
  color: #1976d2;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
}

.article-card .excerpt {
  font-size: 15px;
  color: #555;
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.article-card .read-more {
  text-decoration: none;
  color: #007bff;
  font-weight: 500;
  padding: 10px 20px;
  border: 2px solid #007bff;
  border-radius: 6px;
  transition: background-color 0.2s, color 0.2s;
  display: inline-block;
  text-align: center;
  align-self: flex-start;
}

.article-card .read-more:hover {
  background-color: #007bff;
  color: #fff;
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 40px 0;
  gap: 10px;
}

.pagination button {
  padding: 10px 16px;
  border: 1px solid #007bff;
  background: #fff;
  color: #007bff;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s;
}

.pagination button:hover,
.pagination button.active {
  background-color: #007bff;
  color: #fff;
}

.pagination button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* 页脚 */
footer {
  text-align: center;
  font-size: 14px;
  margin: 40px 0 20px 0;
  color: #666;
  padding: 0 20px;
}

/* 移动端适配 */
@media (max-width: 768px) {
  .nav-container {
    padding: 10px;
  }
  
  nav {
    flex-direction: column;
    padding: 10px;
  }
  
  nav a {
    width: 100%;
    text-align: center;
    margin: 2px 0;
  }
  
  #app {
    padding: 15px;
  }
  
  .column-header h1 {
    font-size: 2em;
  }
  
  .column-header p {
    font-size: 1em;
  }
  
  .article-list {
    grid-template-columns: 1fr;
    gap: 20px;
    margin: 20px auto;
  }
  
  .article-card {
    padding: 20px;
    min-height: 180px;
  }
  
  .article-card h3 {
    font-size: 18px;
  }
  
  .article-card .excerpt {
    font-size: 14px;
  }
  
  footer {
    padding: 0 10px;
  }
}

@media (max-width: 480px) {
  .nav-container {
    padding: 8px;
  }
  
  nav {
    padding: 8px;
  }
  
  nav a {
    padding: 10px 15px;
    font-size: 14px;
  }
  
  #app {
    padding: 10px;
  }
  
  .column-header h1 {
    font-size: 1.8em;
  }
  
  .article-list {
    gap: 15px;
  }
  
  .article-card {
    padding: 15px;
    min-height: 160px;
  }
  
  .article-card h3 {
    font-size: 16px;
  }
  
  .article-card .excerpt {
    font-size: 13px;
  }
  
  .pagination button {
    padding: 8px 12px;
    font-size: 13px;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .article-list {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .column-header {
    margin: 25px 0;
  }
}

@media (min-width: 1200px) {
  .nav-container {
    padding: 15px 30px;
  }
  
  #app {
    padding: 30px;
  }
  
  .column-header {
    margin: 40px 0;
  }
  
  .article-list {
    gap: 30px;
  }
  
  .article-card {
    padding: 30px;
    min-height: 220px;
  }
}

@media (min-width: 1600px) {
  .nav-container {
    padding: 20px 40px;
  }
  
  #app {
    padding: 40px;
  }
  
  .article-list {
    gap: 35px;
  }
}