/* CSS cho trang quảng cáo */
    .page-ads {
      font-family: 'Arial', sans-serif;
      color: #333;
      line-height: 1.6;
      background-color: #f8f9fa;
      padding: 20px 0;
    }

    .page-ads-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    .page-ads-hero {
      text-align: center;
      background: linear-gradient(135deg, #0056b3, #007bff);
      color: #fff;
      padding: 60px 20px;
      border-radius: 10px;
      margin-bottom: 40px;
      box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    }

    .page-ads-hero h1 {
      font-size: 2.8em;
      margin-bottom: 20px;
      color: #fff;
    }

    .page-ads-hero p {
      font-size: 1.2em;
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-ads-btn {
      display: inline-block;
      background-color: #ffc107;
      color: #333;
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.2s ease;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    }

    .page-ads-btn:hover {
      background-color: #e0a800;
      transform: translateY(-2px);
      color: #333; /* Đảm bảo màu chữ không đổi */
    }

    .page-ads-section {
      background-color: #fff;
      padding: 40px;
      border-radius: 10px;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
      margin-bottom: 30px;
    }

    .page-ads-section h2 {
      color: #0056b3;
      font-size: 2.2em;
      margin-bottom: 30px;
      text-align: center;
      position: relative;
    }

    .page-ads-section h2::after {
      content: '';
      width: 80px;
      height: 4px;
      background-color: #ffc107;
      position: absolute;
      bottom: -10px;
      left: 50%;
      transform: translateX(-50%);
      border-radius: 2px;
    }

    .page-ads-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-ads-card {
      background-color: #f1f1f1;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .page-ads-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
    }

    .page-ads-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
    }

    .page-ads-card-content {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-ads-card-content h3 {
      font-size: 1.5em;
      color: #0056b3;
      margin-bottom: 10px;
    }
    
    .page-ads-card-content h3 a {
        color: #0056b3;
        text-decoration: none;
        transition: color 0.3s ease;
    }

    .page-ads-card-content h3 a:hover {
        color: #007bff;
    }

    .page-ads-card-content p {
      font-size: 0.95em;
      color: #555;
      margin-bottom: 15px;
    }

    .page-ads-card-btn {
      display: block;
      width: 100%;
      text-align: center;
      background-color: #28a745;
      color: #fff;
      padding: 12px 0;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
      margin-top: auto; /* Đẩy nút xuống dưới cùng */
    }

    .page-ads-card-btn:hover {
      background-color: #218838;
      color: #fff; /* Đảm bảo màu chữ không đổi */
    }

    .page-ads-steps ol {
      list-style-type: none;
      padding: 0;
      counter-reset: step-counter;
    }

    .page-ads-steps li {
      counter-increment: step-counter;
      background-color: #e9ecef;
      padding: 20px;
      margin-bottom: 15px;
      border-radius: 8px;
      display: flex;
      align-items: center;
      font-size: 1.1em;
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    }

    .page-ads-steps li::before {
      content: counter(step-counter);
      background-color: #007bff;
      color: #fff;
      width: 35px;
      height: 35px;
      border-radius: 50%;
      display: flex;
      justify-content: center;
      align-items: center;
      font-weight: bold;
      margin-right: 15px;
      flex-shrink: 0;
    }

    .page-ads-faq-item {
      margin-bottom: 15px;
      border: 1px solid #ddd;
      border-radius: 8px;
      overflow: hidden;
    }

    .page-ads-faq-question {
      background-color: #f1f1f1;
      padding: 15px 20px;
      cursor: pointer;
      font-weight: bold;
      color: #0056b3;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: background-color 0.3s ease;
    }

    .page-ads-faq-question:hover {
      background-color: #e2e6ea;
    }

    .page-ads-faq-question .page-ads-icon {
      font-size: 1.2em;
      transition: transform 0.3s ease;
    }

    .page-ads-faq-answer {
      padding: 15px 20px;
      background-color: #fff;
      border-top: 1px solid #eee;
      display: none; /* Ẩn theo mặc định */
    }

    .page-ads-faq-item.active .page-ads-faq-answer {
      display: block;
    }

    .page-ads-faq-item.active .page-ads-icon {
      transform: rotate(180deg);
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-ads-hero {
        padding: 40px 15px;
      }
      .page-ads-hero h1 {
        font-size: 2em;
      }
      .page-ads-hero p {
        font-size: 1em;
      }
      .page-ads-section {
        padding: 25px;
      }
      .page-ads-section h2 {
        font-size: 1.8em;
      }
      .page-ads-grid {
        grid-template-columns: 1fr;
      }
      .page-ads-steps li {
        font-size: 1em;
        padding: 15px;
      }
    }