/* Tổng quan */
    body {
      margin: 0;
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      background-color: #000000;
      color: #ffffff;
      line-height: 1.6;
    }

    .page-lu88 {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
      box-sizing: border-box;
    }

    .page-lu88__section {
      padding: 60px 0;
      text-align: center;
    }

    .page-lu88__section-title {
      font-size: 2.5em;
      color: #FFD700; /* Vàng */
      margin-bottom: 40px;
      text-transform: uppercase;
      font-weight: bold;
    }

    .page-lu88__section-subtitle {
      font-size: 1.2em;
      color: #ffffff;
      margin-bottom: 30px;
    }

    .page-lu88__button {
      display: inline-block;
      background-color: #FFD700; /* Vàng */
      color: #000000;
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.3s ease;
      border: none;
      cursor: pointer;
    }

    .page-lu88__button:hover {
      background-color: #e6c200; /* Vàng đậm hơn */
      transform: translateY(-3px);
    }

    /* Hero Section */
    .page-lu88__hero-section {
      background-color: #000000;
      padding-top: 120px; /* An toàn cho menu cố định */
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .page-lu88__hero-image-container {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      margin: 0 auto;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .page-lu88__hero-image {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: 10px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    }

    .page-lu88__hero-content {
      position: relative;
      z-index: 2;
      padding: 40px 20px;
      max-width: 800px;
      margin: 0 auto;
    }

    .page-lu88__hero-title {
      font-size: 3.5em;
      color: #FFD700;
      margin-bottom: 20px;
      line-height: 1.2;
    }

    .page-lu88__hero-description {
      font-size: 1.3em;
      color: #ffffff;
      margin-bottom: 40px;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Nút Đăng nhập nổi */
    .page-lu88__floating-promo-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      z-index: 1000;
      background-color: #FFD700;
      color: #000000;
      padding: 12px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1em;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      transition: transform 0.3s ease, background-color 0.3s ease;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .page-lu88__floating-promo-button:hover {
      background-color: #e6c200;
      transform: translateY(-5px);
    }

    .page-lu88__floating-promo-button-icon {
      font-size: 1.2em;
    }

    /* Game Categories */
    .page-lu88__game-categories-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 30px;
      padding: 0 20px;
    }

    .page-lu88__game-card {
      background-color: #1a1a1a;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
      padding-bottom: 20px;
      border: 1px solid #333;
    }

    .page-lu88__game-card:hover {
      transform: translateY(-10px);
      box-shadow: 0 15px 30px rgba(0, 0, 0, 0.6);
    }

    .page-lu88__game-card-image-container {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      height: 200px; /* Cố định chiều cao cho ảnh game */
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .page-lu88__game-card-image {
      width: 100%;
      height: 100%;
      object-fit: cover; /* Đảm bảo ảnh đầy đủ khung */
      display: block;
      border-bottom: 1px solid #333;
    }

    .page-lu88__game-card-title {
      font-size: 1.5em;
      color: #FFD700;
      margin: 20px 0 10px;
    }

    .page-lu88__game-card-link {
      color: #FFD700;
      text-decoration: none;
      font-weight: bold;
    }

    .page-lu88__game-card-link:hover {
      text-decoration: underline;
    }

    /* Why Choose Section */
    .page-lu88__why-choose-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      padding: 0 20px;
    }

    .page-lu88__why-choose-item {
      background-color: #1a1a1a;
      padding: 30px;
      border-radius: 10px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
      text-align: left;
      border: 1px solid #333;
    }

    .page-lu88__why-choose-item-icon-container {
      width: 100px;
      height: 100px;
      margin: 0 auto 20px;
      display: flex;
      justify-content: center;
      align-items: center;
      background-color: #FFD700;
      border-radius: 50%;
      overflow: hidden;
    }

    .page-lu88__why-choose-item-icon {
      max-width: 80%;
      max-height: 80%;
      display: block;
    }

    .page-lu88__why-choose-item-title {
      font-size: 1.8em;
      color: #FFD700;
      margin-bottom: 15px;
      text-align: center;
    }

    .page-lu88__why-choose-item-description {
      color: #cccccc;
      font-size: 1em;
      text-align: center;
    }

    /* Game Providers Section */
    .page-lu88__providers-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      padding: 0 20px;
      justify-items: center;
    }

    .page-lu88__provider-logo-container {
      background-color: #1a1a1a;
      border-radius: 8px;
      padding: 15px;
      box-shadow: 0 3px 10px rgba(0, 0, 0, 0.3);
      transition: transform 0.3s ease;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100px;
      width: 100%;
      max-width: 200px; /* Limit max width for logos */
      box-sizing: border-box;
      border: 1px solid #333;
    }

    .page-lu88__provider-logo-container:hover {
      transform: scale(1.05);
    }

    .page-lu88__provider-logo {
      max-width: 100%;
      max-height: 100%;
      height: auto;
      display: block;
    }

    /* Promotions Section */
    .page-lu88__promotions-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 30px;
      padding: 0 20px;
    }

    .page-lu88__promo-card {
      background-color: #1a1a1a;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
      text-align: left;
      border: 1px solid #333;
    }

    .page-lu88__promo-card-image-container {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      height: 220px; /* Cố định chiều cao cho ảnh khuyến mãi */
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .page-lu88__promo-card-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .page-lu88__promo-card-content {
      padding: 25px;
    }

    .page-lu88__promo-card-title {
      font-size: 1.6em;
      color: #FFD700;
      margin-top: 0;
      margin-bottom: 10px;
    }

    .page-lu88__promo-card-description {
      color: #cccccc;
      font-size: 0.95em;
      margin-bottom: 20px;
    }

    /* Payment Methods Section */
    .page-lu88__payment-methods-grid {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
      padding: 0 20px;
    }

    .page-lu88__payment-logo-container {
      background-color: #1a1a1a;
      border-radius: 8px;
      padding: 15px;
      box-shadow: 0 3px 10px rgba(0, 0, 0, 0.3);
      display: flex;
      justify-content: center;
      align-items: center;
      height: 80px;
      width: 120px;
      box-sizing: border-box;
      border: 1px solid #333;
    }

    .page-lu88__payment-logo {
      max-width: 100%;
      max-height: 100%;
      height: auto;
      display: block;
    }

    /* FAQ Section */
    .page-lu88__faq-container {
      max-width: 800px;
      margin: 0 auto;
      text-align: left;
    }

    .page-lu88__faq-item {
      background-color: #1a1a1a;
      margin-bottom: 15px;
      border-radius: 8px;
      overflow: hidden;
      border: 1px solid #333;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    }

    .page-lu88__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      cursor: pointer;
      user-select: none;
      background-color: #222222;
      color: #FFD700;
      font-size: 1.2em;
      font-weight: bold;
      transition: background-color 0.3s ease;
    }

    .page-lu88__faq-question:hover {
      background-color: #333333;
    }

    .page-lu88__faq-question h3 {
      margin: 0;
      color: inherit;
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-lu88__faq-toggle {
      font-size: 1.5em;
      line-height: 1;
      pointer-events: none; /* Prevent toggle icon from blocking click event */
      transition: transform 0.3s ease;
    }

    .page-lu88__faq-item.active .page-lu88__faq-toggle {
      transform: rotate(45deg); /* Change + to X or - */
    }

    .page-lu88__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      color: #cccccc;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
    }

    .page-lu88__faq-item.active .page-lu88__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px 25px !important;
      opacity: 1;
    }

    .page-lu88__faq-answer p {
      margin: 0;
      padding-bottom: 10px;
    }

    /* CTA Section */
    .page-lu88__cta-section {
      background-color: #1a1a1a;
      padding: 80px 20px;
      border-top: 5px solid #FFD700;
      margin-top: 60px;
    }

    .page-lu88__cta-title {
      font-size: 2.8em;
      color: #FFD700;
      margin-bottom: 25px;
    }

    .page-lu88__cta-description {
      font-size: 1.2em;
      color: #ffffff;
      margin-bottom: 40px;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-lu88 {
        padding: 0 10px;
      }

      .page-lu88__hero-section {
        padding-top: 100px; /* An toàn cho menu cố định trên di động */
      }

      .page-lu88__section {
        padding: 40px 0;
      }

      .page-lu88__section-title {
        font-size: 2em;
        margin-bottom: 30px;
      }

      .page-lu88__hero-title {
        font-size: 2.5em;
      }

      .page-lu88__hero-description {
        font-size: 1em;
      }

      .page-lu88__button {
        padding: 12px 25px;
        font-size: 1em;
      }

      .page-lu88__game-categories-grid,
      .page-lu88__why-choose-grid,
      .page-lu88__promotions-grid {
        grid-template-columns: 1fr;
      }

      .page-lu88__game-card-image-container,
      .page-lu88__promo-card-image-container {
        height: 180px;
      }

      .page-lu88__provider-logo-container {
        height: 80px;
        width: 100px;
        padding: 10px;
      }

      .page-lu88__payment-logo-container {
        height: 60px;
        width: 100px;
        padding: 10px;
      }

      .page-lu88__faq-question {
        padding: 15px 20px;
        font-size: 1.1em;
      }

      .page-lu88__faq-answer {
        padding: 0 20px;
      }

      .page-lu88__faq-item.active .page-lu88__faq-answer {
        padding: 15px 20px !important;
      }

      .page-lu88__floating-promo-button {
        bottom: 15px;
        right: 15px;
        padding: 10px 20px;
        font-size: 0.9em;
      }

      .page-lu88__cta-title {
        font-size: 2em;
      }

      .page-lu88__cta-description {
        font-size: 1em;
      }

      /* Image responsive optimization for mobile */
      .page-lu88__hero-image,
      .page-lu88__game-card-image,
      .page-lu88__why-choose-item-icon,
      .page-lu88__provider-logo,
      .page-lu88__promo-card-image,
      .page-lu88__payment-logo {
        max-width: 100% !important;
        height: auto !important;
      }

      .page-lu88__hero-image-container,
      .page-lu88__game-card-image-container,
      .page-lu88__why-choose-item-icon-container,
      .page-lu88__provider-logo-container,
      .page-lu88__promo-card-image-container,
      .page-lu88__payment-logo-container {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }