/* Tổng thể */
    .page-kv999 {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      color: #333;
      line-height: 1.6;
      background-color: #f8f8f8;
      padding: 0;
      margin: 0 auto;
      max-width: 100%;
      overflow-x: hidden;
    }

    /* Hero Section */
    .page-kv999__hero-section {
      position: relative;
      width: 100%;
      min-height: 300px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      text-align: center;
      background-color: #002f6c; /* Dark blue for contrast */
      color: #fff;
      padding: 10px 20px 40px; /* Added padding-top for fixed header */
      box-sizing: border-box;
      overflow: hidden;
    }

    .page-kv999__hero-image {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.4; /* Slightly transparent overlay */
      z-index: 1;
      max-width: 100%;
    }

    .page-kv999__hero-content {
      position: relative;
      z-index: 2;
      max-width: 900px;
      margin: 0 auto;
    }

    .page-kv999__hero-title {
      font-size: 2.5em;
      margin-bottom: 15px;
      font-weight: 700;
      color: #ffd700; /* Gold color for emphasis */
    }

    .page-kv999__hero-description {
      font-size: 1.1em;
      margin-bottom: 25px;
      color: #e0e0e0;
    }

    .page-kv999__cta-button {
      display: inline-block;
      background-color: #28a745; /* Green button */
      color: #fff;
      padding: 12px 25px;
      border-radius: 8px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.05em;
      transition: background-color 0.3s ease, transform 0.2s ease;
      cursor: pointer;
      border: none;
    }

    .page-kv999__cta-button:hover {
      background-color: #218838;
      transform: translateY(-2px);
    }

    /* Floating Button */
    .page-kv999__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: #ff4500; /* Orange-red for urgency */
      color: #fff;
      padding: 15px 20px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
      z-index: 1000;
      transition: background-color 0.3s ease, transform 0.2s ease;
      animation: page-kv999__pulse 2s infinite;
      cursor: pointer;
      border: none;
    }

    .page-kv999__floating-button:hover {
      background-color: #e03e00;
      transform: scale(1.05);
    }

    @keyframes page-kv999__pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }

    /* General Section Styling */
    .page-kv999__section {
      padding: 40px 20px;
      max-width: 1200px;
      margin: 0 auto;
      background-color: #fff;
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
      margin-bottom: 30px;
    }

    .page-kv999__section-title {
      font-size: 2em;
      color: #002f6c;
      text-align: center;
      margin-bottom: 30px;
      font-weight: 700;
    }

    .page-kv999__section-title span {
      color: #ff4500;
    }

    .page-kv999__content-block p {
      margin-bottom: 15px;
      font-size: 1em;
      color: #555;
    }

    .page-kv999__content-block ul {
      list-style-type: disc;
      margin-left: 25px;
      margin-bottom: 15px;
      color: #555;
    }

    .page-kv999__content-block ul li {
      margin-bottom: 8px;
    }

    .page-kv999__highlight {
      color: #ff4500;
      font-weight: bold;
    }

    /* Game Grid */
    .page-kv999__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-kv999__game-card {
      background-color: #f0f8ff; /* Light blue background */
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-kv999__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    }

    .page-kv999__game-image-wrapper {
      width: 100%;
      height: 180px; /* Fixed height for consistency */
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-kv999__game-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
      max-width: 100%; /* Ensure responsiveness */
    }

    .page-kv999__game-card:hover .page-kv999__game-image {
      transform: scale(1.05);
    }

    .page-kv999__game-title {
      font-size: 1.2em;
      font-weight: bold;
      color: #002f6c;
      padding: 15px;
      background-color: #e6f2ff; /* Lighter blue for title background */
      border-top: 1px solid #d0e8ff;
    }

    /* Promotion Banner */
    .page-kv999__promotion-banner {
      background-color: #ffeb3b; /* Yellow for attention */
      padding: 30px 20px;
      text-align: center;
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
      margin-bottom: 30px;
    }

    .page-kv999__promotion-text {
      font-size: 1.8em;
      color: #c62828; /* Dark red for impact */
      font-weight: bold;
      margin-bottom: 20px;
    }

    .page-kv999__promotion-link {
      display: inline-block;
      background-color: #c62828; /* Red button */
      color: #fff;
      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;
      cursor: pointer;
      border: none;
    }

    .page-kv999__promotion-link:hover {
      background-color: #a01f1f;
      transform: translateY(-2px);
    }

    /* FAQ Section */
    .page-kv999__faq-section {
      max-width: 900px;
      margin: 0 auto 30px;
      padding: 20px;
      background-color: #fff;
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    }

    .page-kv999__faq-section-title {
      font-size: 2em;
      color: #002f6c;
      text-align: center;
      margin-bottom: 30px;
      font-weight: 700;
    }

    .page-kv999__faq-item {
      border-bottom: 1px solid #eee;
      margin-bottom: 10px;
      padding-bottom: 10px;
    }

    .page-kv999__faq-item:last-child {
      border-bottom: none;
      margin-bottom: 0;
      padding-bottom: 0;
    }

    .page-kv999__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px;
      background-color: #f0f0f0;
      border-radius: 5px;
      cursor: pointer;
      user-select: none;
      transition: background-color 0.3s ease;
    }

    .page-kv999__faq-question:hover {
      background-color: #e0e0e0;
    }

    .page-kv999__faq-question h3 {
      margin: 0;
      font-size: 1.1em;
      color: #333;
      flex-grow: 1;
      text-align: left;
      pointer-events: none; /* Prevent h3 from blocking click on parent */
    }

    .page-kv999__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      color: #002f6c;
      margin-left: 10px;
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click on parent */
    }

    .page-kv999__faq-item.active .page-kv999__faq-toggle {
      transform: rotate(45deg); /* Plus to Minus visual effect */
    }

    .page-kv999__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 15px;
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      background-color: #fdfdfd;
      border-radius: 0 0 5px 5px;
      color: #555;
    }

    .page-kv999__faq-item.active .page-kv999__faq-answer {
      max-height: 2000px !important; /* Sufficiently large for content */
      padding: 20px 15px !important;
      opacity: 1;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-kv999__hero-section {
        padding-top: 10px !important; /* Mobile padding for fixed header */
        min-height: 250px;
      }

      .page-kv999__hero-title {
        font-size: 1.8em;
      }

      .page-kv999__hero-description {
        font-size: 0.95em;
      }

      .page-kv999__cta-button {
        padding: 10px 20px;
        font-size: 1em;
      }

      .page-kv999__floating-button {
        bottom: 15px;
        right: 15px;
        padding: 12px 18px;
        font-size: 1em;
      }

      .page-kv999__section {
        padding: 30px 15px;
        margin-bottom: 20px;
      }

      .page-kv999__section-title {
        font-size: 1.6em;
        margin-bottom: 20px;
      }

      .page-kv999__game-grid {
        grid-template-columns: 1fr; /* Single column on mobile */
        gap: 20px;
      }

      .page-kv999__game-image-wrapper {
        height: 150px;
      }

      .page-kv999__game-title {
        font-size: 1.1em;
        padding: 12px;
      }

      .page-kv999__promotion-banner {
        padding: 25px 15px;
      }

      .page-kv999__promotion-text {
        font-size: 1.4em;
      }

      .page-kv999__promotion-link {
        padding: 12px 25px;
        font-size: 1em;
      }

      .page-kv999__faq-section {
        padding: 15px;
      }

      .page-kv999__faq-section-title {
        font-size: 1.6em;
        margin-bottom: 20px;
      }

      .page-kv999__faq-question h3 {
        font-size: 1em;
      }

      .page-kv999__faq-toggle {
        font-size: 1.3em;
      }

      /* Image responsive optimization for all images */
      .page-kv999 img {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }
      .page-kv999__game-image-wrapper,
      .page-kv999__hero-image {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }
    @media (min-width: 769px) {
        .page-kv999__hero-section {
            padding-top: 10px; /* Desktop padding for fixed header */
        }
    }