:root {
      --page-s666-color-primary: #FFD700; /* Yellow */
      --page-s666-color-secondary: #FFFFFF; /* White */
      --page-s666-color-background: #000000; /* Black */
      --page-s666-color-text: #FFFFFF; /* White */
      --page-s666-color-dark-grey: #1a1a1a;
      --page-s666-color-light-grey: #333333;
    }

    .page-s666 {
      font-family: 'Arial', sans-serif;
      background-color: var(--page-s666-color-background);
      color: var(--page-s666-color-text);
      line-height: 1.6;
      overflow-x: hidden;
      padding-bottom: 80px; /* Space for fixed button */
    }

    .page-s666__section {
      padding: 40px 15px;
      margin-bottom: 20px;
    }

    .page-s666__section-title {
      font-size: 2.2em;
      color: var(--page-s666-color-primary);
      text-align: center;
      margin-bottom: 30px;
      position: relative;
      padding-bottom: 10px;
    }

    .page-s666__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 80px;
      height: 3px;
      background-color: var(--page-s666-color-primary);
    }

    .page-s666__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
      box-sizing: border-box;
    }

    /* Hero Section */
    .page-s666__hero-section {
      background-color: var(--page-s666-color-dark-grey);
      padding-top: 10px; /* Safety zone for fixed header */
      padding-bottom: 40px;
      text-align: center;
    }

    .page-s666__hero-image {
      width: 100%;
      max-width: 100%;
      height: auto;
      display: block;
      margin: 0 auto 20px auto;
      border-radius: 8px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
      box-sizing: border-box;
    }

    .page-s666__hero-content {
      padding: 0 15px;
    }

    .page-s666__hero-title {
      font-size: 2.8em;
      color: var(--page-s666-color-primary);
      margin-bottom: 15px;
      line-height: 1.2;
    }

    .page-s666__hero-description {
      font-size: 1.1em;
      color: var(--page-s666-color-secondary);
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-s666__btn {
      display: inline-block;
      background-color: var(--page-s666-color-primary);
      color: var(--page-s666-color-background);
      padding: 12px 25px;
      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-s666__btn:hover {
      background-color: #FFC107; /* Slightly darker yellow */
      transform: translateY(-2px);
    }

    /* Game Categories */
    .page-s666__game-categories {
      background-color: var(--page-s666-color-background);
    }

    .page-s666__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      justify-content: center;
      padding: 0;
      margin: 0;
      list-style: none;
    }

    .page-s666__game-item {
      background-color: var(--page-s666-color-dark-grey);
      border-radius: 10px;
      text-align: center;
      padding: 20px 15px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      box-sizing: border-box;
    }

    .page-s666__game-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.6);
    }

    .page-s666__game-image {
      width: 100%;
      max-width: 150px; /* Display size, assuming source image is >= 200px */
      height: auto;
      margin-bottom: 15px;
      border-radius: 8px;
      display: block;
      margin-left: auto;
      margin-right: auto;
      box-sizing: border-box;
    }

    .page-s666__game-name {
      font-size: 1.1em;
      color: var(--page-s666-color-primary);
      font-weight: bold;
    }

    /* Promotions Section */
    .page-s666__promotions {
      background-color: var(--page-s666-color-light-grey);
    }

    .page-s666__promotion-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      padding: 0;
      margin: 0;
      list-style: none;
    }

    .page-s666__promotion-card {
      background-color: var(--page-s666-color-dark-grey);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      box-sizing: border-box;
    }

    .page-s666__promotion-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.6);
    }

    .page-s666__promotion-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
      box-sizing: border-box;
    }

    .page-s666__promotion-content {
      padding: 20px;
    }

    .page-s666__promotion-title {
      font-size: 1.4em;
      color: var(--page-s666-color-primary);
      margin-bottom: 10px;
    }

    .page-s666__promotion-description {
      font-size: 0.95em;
      color: var(--page-s666-color-secondary);
      margin-bottom: 15px;
    }

    /* Game Providers Section */
    .page-s666__providers {
      background-color: var(--page-s666-color-background);
    }

    .page-s666__provider-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      gap: 20px;
      justify-content: center;
      padding: 0;
      margin: 0;
      list-style: none;
    }

    .page-s666__provider-item {
      background-color: var(--page-s666-color-dark-grey);
      border-radius: 8px;
      padding: 15px;
      text-align: center;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      box-sizing: border-box;
    }
    
    .page-s666__provider-item:hover {
      transform: translateY(-3px);
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
    }

    .page-s666__provider-logo {
      width: 100%;
      max-width: 100px; /* Display size, assuming source image is >= 200px */
      height: auto;
      display: block;
      margin: 0 auto 10px auto;
      filter: none; /* Ensure no color filters */
      box-sizing: border-box;
    }

    .page-s666__provider-name {
      font-size: 0.9em;
      color: var(--page-s666-color-secondary);
      font-weight: bold;
    }

    /* How-To Section */
    .page-s666__how-to {
      background-color: var(--page-s666-color-light-grey);
    }

    .page-s666__how-to-steps {
      display: grid;
      grid-template-columns: 1fr;
      gap: 30px;
    }

    .page-s666__step-card {
      background-color: var(--page-s666-color-dark-grey);
      border-radius: 10px;
      padding: 25px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
      box-sizing: border-box;
    }

    .page-s666__step-title {
      font-size: 1.6em;
      color: var(--page-s666-color-primary);
      margin-bottom: 15px;
      text-align: center;
    }

    .page-s666__step-image {
      width: 100%;
      height: auto;
      max-height: 300px; /* Display size, assuming source image is >= 200px */
      object-fit: contain;
      border-radius: 8px;
      margin-bottom: 15px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
      display: block;
      box-sizing: border-box;
    }

    .page-s666__step-description {
      font-size: 1em;
      color: var(--page-s666-color-secondary);
      text-align: left;
    }

    /* Why Choose Section */
    .page-s666__why-choose {
      background-color: var(--page-s666-color-background);
    }

    .page-s666__feature-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 25px;
      padding: 0;
      margin: 0;
      list-style: none;
    }

    .page-s666__feature-item {
      background-color: var(--page-s666-color-dark-grey);
      border-radius: 10px;
      padding: 25px;
      text-align: center;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      box-sizing: border-box;
    }

    .page-s666__feature-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.6);
    }

    .page-s666__feature-icon {
      width: 100px; /* Display size, assuming source image is >= 200px */
      height: auto;
      margin-bottom: 15px;
      filter: none; /* Ensure no color filters */
      box-sizing: border-box;
    }

    .page-s666__feature-title {
      font-size: 1.3em;
      color: var(--page-s666-color-primary);
      margin-bottom: 10px;
    }

    .page-s666__feature-description {
      font-size: 0.95em;
      color: var(--page-s666-color-secondary);
    }

    /* FAQ Section */
    .page-s666__faq-section {
      background-color: var(--page-s666-color-light-grey);
    }

    .page-s666__faq-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .page-s666__faq-item {
      background-color: var(--page-s666-color-dark-grey);
      margin-bottom: 15px;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-s666__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      cursor: pointer;
      background-color: var(--page-s666-color-dark-grey);
      color: var(--page-s666-color-primary);
      font-size: 1.1em;
      font-weight: bold;
      border-bottom: 1px solid var(--page-s666-color-light-grey);
      transition: background-color 0.3s ease;
    }

    .page-s666__faq-question:hover {
      background-color: #2a2a2a;
    }

    .page-s666__faq-question h3 {
      margin: 0;
      flex-grow: 1;
      pointer-events: none; /* Prevent click interference */
      color: inherit; /* Ensure h3 inherits color from parent */
    }

    .page-s666__faq-toggle {
      font-size: 1.5em;
      line-height: 1;
      margin-left: 15px;
      pointer-events: none; /* Prevent click interference */
      transition: transform 0.3s ease;
    }

    .page-s666__faq-item.active .page-s666__faq-toggle {
      transform: rotate(45deg); /* Change + to X or similar */
    }

    .page-s666__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px;
      color: var(--page-s666-color-secondary);
      background-color: #1a1a1a;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      font-size: 0.95em;
    }

    .page-s666__faq-item.active .page-s666__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px 20px !important;
      opacity: 1;
    }

    /* Call to Action */
    .page-s666__cta {
      background-color: var(--page-s666-color-dark-grey);
      text-align: center;
      padding: 50px 15px;
      border-radius: 10px;
      margin-top: 40px;
    }

    .page-s666__cta-title {
      font-size: 2em;
      color: var(--page-s666-color-primary);
      margin-bottom: 20px;
    }

    .page-s666__cta-description {
      font-size: 1.1em;
      color: var(--page-s666-color-secondary);
      margin-bottom: 30px;
    }

    /* Social Media */
    .page-s666__social-media {
      background-color: var(--page-s666-color-background);
      text-align: center;
      padding-top: 20px;
    }

    .page-s666__social-links {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 20px;
      margin-top: 20px;
      padding: 0;
      list-style: none;
    }

    .page-s666__social-link {
      color: var(--page-s666-color-secondary);
      font-size: 1.1em;
      text-decoration: none;
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 10px 15px;
      background-color: var(--page-s666-color-dark-grey);
      border-radius: 25px;
      transition: background-color 0.3s ease, color 0.3s ease;
      box-sizing: border-box;
    }

    .page-s666__social-link:hover {
      background-color: var(--page-s666-color-primary);
      color: var(--page-s666-color-background);
    }
    
    .page-s666__social-icon {
      width: 24px; /* Display size, assuming source image is >= 200px */
      height: 24px; /* Display size, assuming source image is >= 200px */
      filter: none; /* Ensure no color filters */
      box-sizing: border-box;
    }

    /* Floating Login Button */
    .page-s666__floating-login {
      position: fixed;
      bottom: 20px;
      right: 20px;
      z-index: 1000;
      background-color: var(--page-s666-color-primary);
      color: var(--page-s666-color-background);
      padding: 15px 25px;
      border-radius: 50px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
      font-size: 1.1em;
      font-weight: bold;
      text-align: center;
      cursor: pointer;
      transition: transform 0.3s ease, background-color 0.3s ease;
      animation: page-s666__pulse 2s infinite;
      text-decoration: none; /* Ensure it's not underlined if it's an anchor */
    }

    .page-s666__floating-login:hover {
      background-color: #FFC107;
      transform: scale(1.05);
    }

    @keyframes page-s666__pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.03); }
      100% { transform: scale(1); }
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-s666__hero-section {
        padding-top: 10px; /* Safety zone for fixed header on mobile */
      }
      .page-s666__hero-title {
        font-size: 2em;
      }
      .page-s666__hero-description {
        font-size: 1em;
      }
      .page-s666__section-title {
        font-size: 1.8em;
      }

      .page-s666__game-grid,
      .page-s666__promotion-grid,
      .page-s666__provider-grid,
      .page-s666__feature-grid {
        grid-template-columns: 1fr; /* Stack items on mobile */
      }
      
      .page-s666__game-item,
      .page-s666__promotion-card,
      .page-s666__provider-item,
      .page-s666__feature-item,
      .page-s666__faq-item {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding-left: 15px; /* Adjust padding for mobile */
        padding-right: 15px;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }

      .page-s666__game-grid,
      .page-s666__promotion-grid,
      .page-s666__provider-grid,
      .page-s666__feature-grid,
      .page-s666__faq-list {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }

      .page-s666__game-image,
      .page-s666__promotion-image,
      .page-s666__provider-logo,
      .page-s666__step-image,
      .page-s666__feature-icon,
      .page-s666__social-icon {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }

      .page-s666__floating-login {
        bottom: 15px;
        right: 15px;
        padding: 12px 20px;
        font-size: 1em;
      }

      .page-s666__faq-question, .page-s666__faq-answer {
        padding-left: 15px;
        padding-right: 15px;
      }
      .page-s666__faq-item.active .page-s666__faq-answer {
        padding: 15px 15px !important;
      }
    }

    @media (max-width: 480px) {
      .page-s666__hero-title {
        font-size: 1.8em;
      }
      .page-s666__section-title {
        font-size: 1.6em;
      }
      .page-s666__btn {
        padding: 10px 20px;
        font-size: 1em;
      }
      .page-s666__cta-title {
        font-size: 1.5em;
      }
      .page-s666__cta-description {
        font-size: 0.95em;
      }
      .page-s666__social-link {
        padding: 8px 12px;
        font-size: 0.9em;
      }
    }