.tool-bar {
      max-width: 1400px;
      margin: 2rem auto;
      padding: 0 1rem;
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      justify-content: center;
      align-items: center;
    }

    .search-box {
      flex: 1;
      min-width: 280px;
      max-width: 500px;
      position: relative;
    }

    .search-box input {
      width: 90%;
      padding: 12px 15px 12px 40px;
      border: 1px solid #ddd;
      border-radius: 30px;
      font-size: 1rem;
      outline: none;
      transition: 0.3s;
    }

    .search-box input:focus {
      border-color: #2c7be5;
      box-shadow: 0 0 8px rgba(44,123,229,0.25);
    }

    .search-box i {
      position: absolute;
      left: 15px;
      top: 50%;
      transform: translateY(-50%);
      color: #999;
    }

    .filter-select {
      padding: 12px 16px;
      border: 1px solid #ddd;
      border-radius: 30px;
      font-size: 1rem;
      outline: none;
      cursor: pointer;
      background: #fff;
    }

    .container {
      max-width: 1400px;
      margin: 0 auto 4rem;
      padding: 0 1rem;
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
      gap: 1.2rem;
    }

    .city-card {
      background: #fff;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0,0,0,0.07);
      transition: transform 0.25s, box-shadow 0.25s;
      cursor: pointer;
    }

    .city-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 6px 16px rgba(0,0,0,0.12);
    }

    .city-img {
      width: 100%;
      height: 140px;
      object-fit: cover;
    }

    .city-info {
      padding: 0.9rem;
    }

    .city-name {
      font-size: 1.15rem;
      font-weight: 600;
      margin-bottom: 0.4rem;
      color: #222;
    }

    .city-province {
      color: #666;
      font-size: 0.9rem;
      margin-bottom: 0.4rem;
      display: flex;
      align-items: center;
      gap: 4px;
    }

    .city-desc {
      font-size: 0.85rem;
      color: #777;
      line-height: 1.4;
    }

    .empty {
      grid-column: 1 / -1;
      text-align: center;
      padding: 4rem 1rem;
      color: #888;
      font-size: 1.1rem;
    }

    .province-group {
      grid-column: 1 / -1;
      padding: 1rem;
      background: #fff;
      border-radius: 8px;
      box-shadow: 0 2px 6px rgba(0,0,0,0.05);
    }

    .province-title {
      font-size: 1.3rem;
      color: #2c7be5;
      margin-bottom: 1rem;
      padding-bottom: 0.5rem;
      border-bottom: 2px solid #eee;
    }

    .province-cities {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
      gap: 1rem;
    }