:root {
      --page-fun88-primary-color: #fdd835; /* Vàng */
      --page-fun88-secondary-color: #ffffff; /* Trắng */
      --page-fun88-background-color: #000000; /* Đen */
      --page-fun88-text-color: #ffffff; /* Trắng */
      --page-fun88-dark-text-color: #333333; /* Màu chữ tối cho nền sáng */
      --page-fun88-button-hover-color: #ffeb3b; /* Vàng sáng hơn */
      --page-fun88-border-color: #444444; /* Xám đậm cho đường viền */
    }

    .page-fun88 {
      font-family: 'Arial', sans-serif;
      background-color: var(--page-fun88-background-color);
      color: var(--page-fun88-text-color);
      line-height: 1.6;
      overflow-x: hidden;
      padding-bottom: 80px; /* Dành chỗ cho nút nổi */
    }

    .page-fun88__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
      box-sizing: border-box;
    }

    .page-fun88__section {
      padding: 40px 0;
      text-align: center;
    }

    .page-fun88__section-title {
      font-size: 2.5em;
      color: var(--page-fun88-primary-color);
      margin-bottom: 30px;
      text-transform: uppercase;
      font-weight: bold;
    }

    .page-fun88__section-subtitle {
      font-size: 1.2em;
      color: var(--page-fun88-secondary-color);
      margin-bottom: 40px;
    }

    /* Hero Section */
    .page-fun88__hero-section {
      position: relative;
      padding-top: 10px; /* Safe zone for fixed header */
      text-align: center;
      background-color: var(--page-fun88-background-color);
    }

    .page-fun88__hero-image {
      width: 100%;
      max-width: 100%;
      height: auto;
      display: block;
      margin: 0 auto;
      border-radius: 8px;
    }

    .page-fun88__hero-content {
      padding: 30px 15px;
    }

    .page-fun88__hero-title {
      font-size: 2.8em;
      color: var(--page-fun88-primary-color);
      margin-bottom: 15px;
      line-height: 1.2;
      font-weight: bold;
    }

    .page-fun88__hero-description {
      font-size: 1.1em;
      color: var(--page-fun88-secondary-color);
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Floating Login Button */
    .page-fun88__floating-button-wrapper {
      position: fixed;
      bottom: 20px;
      left: 0;
      width: 100%;
      z-index: 1000;
      display: flex;
      justify-content: center;
      pointer-events: none; /* Allow clicks to pass through to elements behind it by default */
    }

    .page-fun88__floating-button {
      background-color: var(--page-fun88-primary-color);
      color: var(--page-fun88-dark-text-color);
      padding: 15px 30px;
      border-radius: 50px;
      font-size: 1.2em;
      font-weight: bold;
      text-decoration: none;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      transition: background-color 0.3s ease, transform 0.2s ease;
      cursor: pointer;
      pointer-events: auto; /* Re-enable clicks for the button itself */
      display: inline-block;
      text-align: center;
    }

    .page-fun88__floating-button:hover {
      background-color: var(--page-fun88-button-hover-color);
      transform: translateY(-3px);
    }

    /* Game Categories */
    .page-fun88__game-categories {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      padding: 0 15px;
    }

    .page-fun88__game-card {
      background-color: #1a1a1a;
      border-radius: 12px;
      overflow: hidden;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      border: 1px solid var(--page-fun88-border-color);
    }

    .page-fun88__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.6);
    }

    .page-fun88__game-card-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-fun88__game-card-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
    }

    .page-fun88__game-card-content {
      padding: 20px;
    }

    .page-fun88__game-card-title {
      font-size: 1.5em;
      color: var(--page-fun88-primary-color);
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-fun88__game-card-description {
      font-size: 0.95em;
      color: var(--page-fun88-secondary-color);
      margin-bottom: 15px;
    }

    .page-fun88__game-card-button {
      background-color: var(--page-fun88-primary-color);
      color: var(--page-fun88-dark-text-color);
      padding: 10px 20px;
      border-radius: 25px;
      font-size: 1em;
      font-weight: bold;
      text-decoration: none;
      transition: background-color 0.3s ease;
      display: inline-block;
      cursor: pointer;
    }

    .page-fun88__game-card-button:hover {
      background-color: var(--page-fun88-button-hover-color);
    }

    /* Game Providers */
    .page-fun88__providers-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      padding: 0 15px;
    }

    .page-fun88__provider-item {
      background-color: #1a1a1a;
      border-radius: 10px;
      padding: 15px;
      text-align: center;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
      transition: transform 0.3s ease;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--page-fun88-border-color);
    }

    .page-fun88__provider-item:hover {
      transform: translateY(-3px);
    }

    .page-fun88__provider-logo-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-fun88__provider-logo {
      max-width: 100px; /* Specific for gamelogo type */
      height: auto;
      display: block;
      margin: 0 auto 10px auto;
    }

    .page-fun88__provider-name {
      font-size: 1em;
      color: var(--page-fun88-secondary-color);
      font-weight: bold;
    }

    /* Promotions */
    .page-fun88__promotion-card {
      background-color: #1a1a1a;
      border-radius: 12px;
      overflow: hidden;
      margin-bottom: 25px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
      display: flex;
      flex-direction: column;
      text-align: left;
      border: 1px solid var(--page-fun88-border-color);
    }

    .page-fun88__promotion-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-fun88__promotion-image {
      width: 100%;
      height: 220px;
      object-fit: cover;
      display: block;
    }

    .page-fun88__promotion-content {
      padding: 20px;
    }

    .page-fun88__promotion-title {
      font-size: 1.6em;
      color: var(--page-fun88-primary-color);
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-fun88__promotion-description {
      font-size: 1em;
      color: var(--page-fun88-secondary-color);
      margin-bottom: 20px;
    }

    .page-fun88__promotion-button {
      background-color: var(--page-fun88-primary-color);
      color: var(--page-fun88-dark-text-color);
      padding: 10px 20px;
      border-radius: 25px;
      font-size: 1em;
      font-weight: bold;
      text-decoration: none;
      transition: background-color 0.3s ease;
      display: inline-block;
      cursor: pointer;
    }

    .page-fun88__promotion-button:hover {
      background-color: var(--page-fun88-button-hover-color);
    }

    /* Guides */
    .page-fun88__guides-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 25px;
      padding: 0 15px;
    }

    .page-fun88__guide-card {
      background-color: #1a1a1a;
      border-radius: 12px;
      padding: 25px;
      text-align: left;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
      transition: transform 0.3s ease;
      border: 1px solid var(--page-fun88-border-color);
    }

    .page-fun88__guide-card:hover {
      transform: translateY(-5px);
    }

    .page-fun88__guide-card-icon {
      font-size: 3em;
      color: var(--page-fun88-primary-color);
      margin-bottom: 15px;
      display: block;
    }

    .page-fun88__guide-card-title {
      font-size: 1.4em;
      color: var(--page-fun88-primary-color);
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-fun88__guide-card-description {
      font-size: 0.95em;
      color: var(--page-fun88-secondary-color);
    }

    /* FAQ Section */
    .page-fun88__faq-section {
      background-color: #0d0d0d;
      padding: 60px 0;
    }

    .page-fun88__faq-item {
      background-color: #1a1a1a;
      border-radius: 10px;
      margin-bottom: 15px;
      overflow: hidden;
      border: 1px solid var(--page-fun88-border-color);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    }

    .page-fun88__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      cursor: pointer;
      user-select: none;
      background-color: #222222;
      transition: background-color 0.3s ease;
    }

    .page-fun88__faq-question:hover {
      background-color: #333333;
    }

    .page-fun88__faq-question h3 {
      font-size: 1.25em;
      color: var(--page-fun88-primary-color);
      margin: 0;
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-fun88__faq-toggle {
      font-size: 1.8em;
      color: var(--page-fun88-primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent span from blocking click event */
      font-weight: bold;
      line-height: 1;
    }

    .page-fun88__faq-item.active .page-fun88__faq-toggle {
      transform: rotate(45deg); /* Change '+' to 'x' or similar effect */
    }

    .page-fun88__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      color: var(--page-fun88-secondary-color);
      text-align: left;
    }

    .page-fun88__faq-item.active .page-fun88__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px 25px !important;
      opacity: 1;
    }

    /* Social Media */
    .page-fun88__social-media-grid {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
      padding: 0 15px;
    }

    .page-fun88__social-link {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-decoration: none;
      color: var(--page-fun88-secondary-color);
      transition: color 0.3s ease, transform 0.3s ease;
    }

    .page-fun88__social-link:hover {
      color: var(--page-fun88-primary-color);
      transform: translateY(-5px);
    }

    .page-fun88__social-icon-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-fun88__social-icon {
      width: 60px;
      height: 60px;
      margin-bottom: 8px;
      border-radius: 50%;
      object-fit: contain;
      background-color: #333; /* For better contrast on some icons */
      padding: 5px;
    }

    .page-fun88__social-name {
      font-size: 0.9em;
      font-weight: bold;
    }

    /* General text styling */
    .page-fun88 p {
      margin-bottom: 1em;
      color: var(--page-fun88-secondary-color);
    }

    .page-fun88 ul {
      list-style: none;
      padding: 0;
      margin: 0 0 1em 0;
      text-align: left;
    }

    .page-fun88 ul li {
      margin-bottom: 0.5em;
      padding-left: 20px;
      position: relative;
      color: var(--page-fun88-secondary-color);
    }

    .page-fun88 ul li::before {
      content: '•';
      color: var(--page-fun88-primary-color);
      position: absolute;
      left: 0;
      font-weight: bold;
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-fun88__hero-section {
        padding-top: 10px; /* Safe zone for fixed header on mobile */
      }

      .page-fun88__hero-title {
        font-size: 2em;
      }

      .page-fun88__hero-description {
        font-size: 0.95em;
      }

      .page-fun88__section-title {
        font-size: 2em;
      }

      .page-fun88__section-subtitle {
        font-size: 1em;
      }

      .page-fun88__game-categories,
      .page-fun88__providers-grid,
      .page-fun88__guides-grid {
        grid-template-columns: 1fr;
      }

      .page-fun88__promotion-card {
        flex-direction: column;
      }

      .page-fun88__promotion-image {
        height: 180px;
      }

      .page-fun88__promotion-title {
        font-size: 1.4em;
      }

      .page-fun88__faq-question {
        padding: 15px 20px;
      }

      .page-fun88__faq-question h3 {
        font-size: 1.1em;
      }

      .page-fun88__faq-answer {
        padding: 0 20px;
      }

      .page-fun88__faq-item.active .page-fun88__faq-answer {
        padding: 15px 20px !important;
      }

      .page-fun88__social-icon {
        width: 50px;
        height: 50px;
      }

      /* Force responsive image styles for mobile */
      .page-fun88 img {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-fun88__game-card-image-wrapper,
      .page-fun88__provider-logo-wrapper,
      .page-fun88__promotion-image-wrapper,
      .page-fun88__social-icon-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }

    @media (max-width: 480px) {
      .page-fun88__hero-title {
        font-size: 1.8em;
      }
      .page-fun88__floating-button {
        font-size: 1em;
        padding: 12px 25px;
      }
    }