 .main-page {
    background-color: #5c3f31;
    color: white;
  }
  
  .header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
  }
  
  .logo-and-name {
    display: flex;
    align-items: center;
  }
  
  .logo {
    height: 30px;
    margin-right: 10px;
  }
  
  .site-name {
    font-size: 24px;
  }
  
  .user-and-message {
    display: flex;
    align-items: center;
  }
  
  .user-avatar {
    height: 40px;
    margin-right: 10px;
  }
  
  .message-center {
    font-size: 16px;
  }
  
  .nav {
    background-color: #b38867;
    display: flex;
    justify-content: center;
  }
  
  .nav-item {
    color: white;
    text-decoration: none;
    padding: 10px 20px;
  }
  
  .active {
    background-color: #996633;
  }
  
  /* 搜索、排序控件 */
  .controls {
    display: flex;
    justify-content: center;
    gap: 16px;
    padding: 10px 20px;
    background-color: #704c3b;
  }
  
  .search-input {
    padding: 6px 10px;
    border-radius: 6px;
    border: none;
    width: 200px;
  }
  
  .sort-select {
    padding: 6px;
    border-radius: 6px;
    border: none;
  }
  
  /* 标签过滤 */
  .tag-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    padding: 10px;
  }
  
  .tag-button {
    background-color: #b38867;
    color: white;
    border: none;
    border-radius: 20px;
    padding: 6px 12px;
    cursor: pointer;
  }
  
  .active-tag {
    background-color: #d17c4f;
  }
  
  /* 卡片展示 */
  .seed-list-content {
    padding: 20px;
  }
  
  .seed-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
  }
  
  .seed-card {
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 16px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    color: #333;
    transition: transform 0.2s ease;
  }
  
  .seed-card:hover {
    transform: translateY(-5px);
  }
  
  .seed-card-header h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: #333;
  }
  
  .seed-card-body p {
    margin: 4px 0;
    font-size: 0.95rem;
    color: #666;
  }
  
  .seed-card-actions {
    display: flex;
    gap: 10px;
    margin-top: 12px;
  }
  
  .btn-primary,
  .btn-secondary,
  .btn-outline {
    padding: 6px 12px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
  }
  
  .btn-primary {
    background-color: #007bff;
    color: white;
  }
  
  .btn-secondary {
    background-color: #28a745;
    color: white;
    text-decoration: none;
    text-align: center;
  }
  
  .btn-outline {
    background-color: transparent;
    border: 1px solid #ccc;
    color: #333;
  }