:root {
      --page-win68pro-primary-color: #e0b000; /* Vàng hổ phách */
      --page-win68pro-secondary-color: #333333; /* Xám đậm */
      --page-win68pro-accent-color: #ff4d4d; /* Đỏ tươi */
      --page-win68pro-text-light: #ffffff;
      --page-win68pro-text-dark: #1a1a1a;
      --page-win68pro-bg-dark: #121212;
      --page-win68pro-bg-light: #f5f5f5;
    }

    .page-win68pro {
      font-family: 'Arial', sans-serif;
      color: var(--page-win68pro-text-light);
      background-color: var(--page-win68pro-bg-dark);
      line-height: 1.6;
      overflow-x: hidden;
    }

    .page-win68pro__section {
      padding: 40px 20px;
      text-align: center;
      max-width: 1200px;
      margin: 0 auto;
    }

    .page-win68pro__section--dark {
      background-color: var(--page-win68pro-secondary-color);
      color: var(--page-win68pro-text-light);
    }

    .page-win68pro__section--light {
      background-color: var(--page-win68pro-bg-light);
      color: var(--page-win68pro-text-dark);
    }

    .page-win68pro__h1,
    .page-win68pro__h2,
    .page-win68pro__h3 {
      color: var(--page-win68pro-primary-color);
      margin-bottom: 20px;
      font-weight: bold;
    }

    .page-win68pro__h1 {
      font-size: 2.5em;
      margin-top: 0;
    }

    .page-win68pro__h2 {
      font-size: 2em;
      color: var(--page-win68pro-primary-color);
    }

    .page-win68pro__h3 {
      font-size: 1.5em;
      color: var(--page-win68pro-primary-color);
    }

    .page-win68pro__paragraph {
      margin-bottom: 15px;
      font-size: 1.1em;
      color: #ccc;
    }

    .page-win68pro__button {
      display: inline-block;
      background-color: var(--page-win68pro-accent-color);
      color: var(--page-win68pro-text-light);
      padding: 12px 25px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
      border: none;
      cursor: pointer;
      font-size: 1.1em;
    }

    .page-win68pro__button:hover {
      background-color: #ff6666;
    }

    /* Hero Section */
    .page-win68pro__hero-section {
      position: relative;
      background-color: #000;
      padding-top: 10px; /* Desktop */
      padding-bottom: 60px;
      text-align: center;
      overflow: hidden;
    }

    .page-win68pro__hero-image {
      width: 100%;
      max-width: 100%;
      height: auto;
      object-fit: cover;
      display: block;
      margin: 0 auto;
      border-radius: 8px;
    }

    .page-win68pro__hero-content {
      position: relative;
      z-index: 10;
      padding: 20px;
      max-width: 800px;
      margin: 0 auto;
    }

    .page-win68pro__hero-content .page-win68pro__h1 {
      color: var(--page-win68pro-primary-color);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
      margin-bottom: 15px;
    }

    .page-win68pro__hero-content .page-win68pro__paragraph {
      color: #eee;
      margin-bottom: 30px;
    }

    /* Floating Button */
    .page-win68pro__floating-button-wrapper {
      position: fixed;
      bottom: 20px;
      left: 0;
      width: 100%;
      z-index: 1000;
      text-align: center;
    }

    .page-win68pro__floating-button {
      background-color: var(--page-win68pro-accent-color);
      color: var(--page-win68pro-text-light);
      padding: 15px 30px;
      border-radius: 50px;
      font-size: 1.2em;
      font-weight: bold;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      transition: all 0.3s ease;
      animation: pulse 2s infinite;
      text-decoration: none; /* Ensure no underline */
      display: inline-block; /* Allow padding and shadow */
    }

    .page-win68pro__floating-button:hover {
      background-color: #ff6666;
      transform: scale(1.05);
    }

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

    /* Game Categories */
    .page-win68pro__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }

    .page-win68pro__game-card {
      background-color: var(--page-win68pro-bg-dark);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
      padding: 15px;
      border: 1px solid var(--page-win68pro-primary-color);
    }

    .page-win68pro__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
    }

    .page-win68pro__game-card-image {
      width: 100%;
      max-width: 100%;
      height: 150px;
      object-fit: contain; /* Changed to contain to prevent cropping and show full game logos/icons */
      border-radius: 8px;
      margin-bottom: 15px;
    }

    .page-win68pro__game-card .page-win68pro__h3 {
      font-size: 1.2em;
      color: var(--page-win68pro-text-light);
      margin-bottom: 0;
    }

    /* Features List */
    .page-win68pro__features-list {
      list-style: none;
      padding: 0;
      margin-top: 30px;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
      text-align: left;
    }

    .page-win68pro__features-item {
      background-color: var(--page-win68pro-secondary-color);
      padding: 25px;
      border-radius: 10px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
      border-left: 5px solid var(--page-win68pro-primary-color);
    }

    .page-win68pro__features-item .page-win68pro__h3 {
      margin-top: 0;
      color: var(--page-win68pro-primary-color);
    }

    .page-win68pro__features-item .page-win68pro__paragraph {
      font-size: 1em;
      color: #ccc;
    }

    /* Registration Guide */
    .page-win68pro__guide-steps {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 30px;
      margin-top: 30px;
    }

    .page-win68pro__step-card {
      background-color: var(--page-win68pro-secondary-color);
      padding: 30px;
      border-radius: 10px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
      flex: 1 1 300px;
      max-width: 350px;
      text-align: left;
      border: 1px solid var(--page-win68pro-primary-color);
    }

    .page-win68pro__step-card-number {
      font-size: 2.5em;
      color: var(--page-win68pro-accent-color);
      font-weight: bold;
      margin-bottom: 10px;
      display: block;
    }

    .page-win68pro__step-card .page-win68pro__h3 {
      color: var(--page-win68pro-primary-color);
      margin-top: 0;
    }

    .page-win68pro__step-card .page-win68pro__paragraph {
      color: #ccc;
    }

    /* Promotion Section */
    .page-win68pro__promo-content {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 30px;
      margin-top: 30px;
    }

    .page-win68pro__promo-image {
      width: 100%;
      max-width: 600px;
      height: auto;
      border-radius: 10px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    }

    .page-win68pro__promo-text {
      max-width: 700px;
    }

    /* FAQ Section */
    .page-win68pro__faq-list {
      margin-top: 30px;
      text-align: left;
    }

    .page-win68pro__faq-item {
      background-color: var(--page-win68pro-secondary-color);
      margin-bottom: 10px;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }

    .page-win68pro__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: #2a2a2a;
      cursor: pointer;
      user-select: none;
      transition: background-color 0.3s ease;
      border-bottom: 1px solid #3a3a3a;
    }

    .page-win68pro__faq-question:hover {
      background-color: #383838;
    }

    .page-win68pro__faq-question .page-win68pro__h3 {
      margin: 0;
      color: var(--page-win68pro-primary-color);
      font-size: 1.1em;
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-win68pro__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      color: var(--page-win68pro-primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle from blocking click event */
    }

    .page-win68pro__faq-item.active .page-win68pro__faq-toggle {
      transform: rotate(45deg); /* Change + to X or similar */
    }

    .page-win68pro__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 15px; /* Initial padding, will be overridden */
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      color: #ddd;
      font-size: 1em;
      background-color: #222;
    }

    .page-win68pro__faq-item.active .page-win68pro__faq-answer {
      max-height: 2000px !important; /* Sufficiently large to contain content */
      padding: 20px 15px !important;
      opacity: 1;
    }

    /* Call to Action Section */
    .page-win68pro__cta-section {
      padding: 60px 20px;
      background: linear-gradient(45deg, #1a1a1a, #333333);
      color: var(--page-win68pro-text-light);
      text-align: center;
    }

    .page-win68pro__cta-section .page-win68pro__h2 {
      color: var(--page-win68pro-primary-color);
      margin-bottom: 25px;
    }

    .page-win68pro__cta-section .page-win68pro__paragraph {
      font-size: 1.2em;
      max-width: 800px;
      margin: 0 auto 30px auto;
      color: #eee;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-win68pro__hero-section {
        padding-top: 10px; /* Mobile */
        padding-bottom: 40px;
      }

      .page-win68pro__h1 {
        font-size: 2em;
      }

      .page-win68pro__h2 {
        font-size: 1.7em;
      }

      .page-win68pro__h3 {
        font-size: 1.3em;
      }

      .page-win68pro__paragraph {
        font-size: 1em;
      }

      .page-win68pro__section {
        padding: 30px 15px;
      }

      .page-win68pro__game-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      }

      .page-win68pro__game-card-image {
        height: 120px;
      }

      .page-win68pro__features-list {
        grid-template-columns: 1fr;
      }

      .page-win68pro__step-card {
        flex: 1 1 100%;
        max-width: 100%;
      }

      .page-win68pro__promo-content {
        flex-direction: column;
      }

      .page-win68pro__promo-image {
        max-width: 100%;
      }

      .page-win68pro__floating-button {
        padding: 12px 25px;
        font-size: 1em;
      }
    }

    /* Image responsiveness */
    .page-win68pro img {
      width: 100%;
      max-width: 100%;
      height: auto;
      box-sizing: border-box;
      display: block; /* Ensures images don't have extra space below them */
    }

    .page-win68pro__image-container {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
    }

    @media (max-width: 768px) {
      .page-win68pro img {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-win68pro__image-container {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }