:root {
      --page-68win13-primary-color: #e44d26; /* Cam đỏ */
      --page-68win13-secondary-color: #333333; /* Xám đậm */
      --page-68win13-accent-color: #f7b731; /* Vàng cam */
      --page-68win13-text-color: #333333;
      --page-68win13-light-text-color: #ffffff;
      --page-68win13-bg-light: #f5f5f5;
      --page-68win13-bg-dark: #222222;
      --page-68win13-border-color: #e0e0e0;
      --page-68win13-font-family: 'Arial', sans-serif;
    }

    .page-68win13 {
      font-family: var(--page-68win13-font-family);
      line-height: 1.6;
      color: var(--page-68win13-text-color);
      background-color: #fff;
      overflow-x: hidden;
    }

    /* Hero Section */
    .page-68win13__hero-section {
      position: relative;
      width: 100%;
      min-height: 400px;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      color: var(--page-68win13-light-text-color);
      padding-top: 60px; /* Adjust for fixed header */
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-68win13__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: -1;
    }

    .page-68win13__hero-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.6);
      z-index: -1;
    }

    .page-68win13__hero-content {
      position: relative;
      z-index: 1;
      max-width: 90%;
      padding: 20px;
    }

    .page-68win13__hero-title {
      font-size: 2.5em;
      margin-bottom: 10px;
      color: var(--page-68win13-accent-color);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    }

    .page-68win13__hero-subtitle {
      font-size: 1.2em;
      margin-bottom: 20px;
      text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    }

    .page-68win13__cta-button {
      display: inline-block;
      background-color: var(--page-68win13-primary-color);
      color: var(--page-68win13-light-text-color);
      padding: 12px 25px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.2s ease;
      font-size: 1.1em;
      border: none;
      cursor: pointer;
    }

    .page-68win13__cta-button:hover {
      background-color: #c0392b; /* Darker red */
      transform: translateY(-2px);
    }

    /* Floating Login Button */
    .page-68win13__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: var(--page-68win13-accent-color);
      color: var(--page-68win13-secondary-color);
      padding: 10px 15px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
      z-index: 1000;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      transition: background-color 0.3s ease, transform 0.2s ease;
      font-size: 0.9em;
      line-height: 1.2;
      border: none;
      cursor: pointer;
    }

    .page-68win13__floating-button:hover {
      background-color: #e6a200;
      transform: scale(1.05);
    }

    /* Sections */
    .page-68win13__section {
      padding: 40px 20px;
      text-align: center;
      max-width: 1200px;
      margin: 0 auto;
      box-sizing: border-box;
    }

    .page-68win13__section--light {
      background-color: var(--page-68win13-bg-light);
    }

    .page-68win13__section-title {
      font-size: 2em;
      color: var(--page-68win13-primary-color);
      margin-bottom: 30px;
      position: relative;
      padding-bottom: 10px;
    }

    .page-68win13__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 60px;
      height: 3px;
      background-color: var(--page-68win13-accent-color);
    }

    .page-68win13__section-description {
      font-size: 1.1em;
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    /* About Section */
    .page-68win13__about-content {
      display: flex;
      flex-direction: column;
      gap: 25px;
      text-align: left;
    }

    .page-68win13__about-text {
      font-size: 1em;
      color: var(--page-68win13-secondary-color);
    }

    .page-68win13__about-image {
      width: 100%;
      max-width: 600px;
      height: auto;
      border-radius: 8px;
      margin: 20px auto;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    }

    /* Game Categories */
    .page-68win13__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
      justify-content: center;
    }

    .page-68win13__game-card {
      background-color: #fff;
      border-radius: 10px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
      overflow: hidden;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      text-align: left;
    }

    .page-68win13__game-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    }

    .page-68win13__game-card-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
    }

    .page-68win13__game-card-content {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .page-68win13__game-card-title {
      font-size: 1.4em;
      color: var(--page-68win13-primary-color);
      margin-bottom: 10px;
    }

    .page-68win13__game-card-description {
      font-size: 0.95em;
      color: var(--page-68win13-secondary-color);
      margin-bottom: 15px;
      flex-grow: 1;
    }

    .page-68win13__game-card-button {
      background-color: var(--page-68win13-accent-color);
      color: var(--page-68win13-light-text-color);
      padding: 10px 15px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
      font-size: 0.9em;
      text-align: center;
      border: none;
      cursor: pointer;
    }

    .page-68win13__game-card-button:hover {
      background-color: #e6a200;
    }

    /* Promotions Section */
    .page-68win13__promotion-card {
      background-color: var(--page-68win13-primary-color);
      color: var(--page-68win13-light-text-color);
      padding: 30px;
      border-radius: 10px;
      margin: 30px auto;
      max-width: 800px;
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
    }

    .page-68win13__promotion-title {
      font-size: 2.2em;
      margin-bottom: 15px;
      color: var(--page-68win13-accent-color);
    }

    .page-68win13__promotion-description {
      font-size: 1.2em;
      margin-bottom: 25px;
    }

    /* Guide Section */
    .page-68win13__guide-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 25px;
      margin-top: 30px;
      justify-content: center;
    }

    .page-68win13__guide-item {
      background-color: #fff;
      border-radius: 10px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
      padding: 25px;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      transition: transform 0.3s ease;
    }

    .page-68win13__guide-item:hover {
      transform: translateY(-5px);
    }

    .page-68win13__guide-icon {
      width: 80px;
      height: 80px;
      margin-bottom: 15px;
      object-fit: contain;
    }

    .page-68win13__guide-title {
      font-size: 1.3em;
      color: var(--page-68win13-primary-color);
      margin-bottom: 10px;
    }

    .page-68win13__guide-description {
      font-size: 0.95em;
      color: var(--page-68win13-secondary-color);
    }

    /* FAQ Section */
    .page-68win13__faq-container {
      max-width: 800px;
      margin: 30px auto;
      text-align: left;
    }

    .page-68win13__faq-item {
      margin-bottom: 15px;
      border: 1px solid var(--page-68win13-border-color);
      border-radius: 8px;
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-68win13__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: var(--page-68win13-bg-light);
      cursor: pointer;
      user-select: none;
      transition: background-color 0.3s ease;
    }

    .page-68win13__faq-question:hover {
      background-color: #e0e0e0;
    }

    .page-68win13__faq-question h3 {
      margin: 0;
      font-size: 1.1em;
      color: var(--page-68win13-secondary-color);
      pointer-events: none; /* Prevent h3 from blocking click */
    }

    .page-68win13__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      color: var(--page-68win13-primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle from blocking click */
    }

    .page-68win13__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px;
      background-color: #fff;
      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-68win13-text-color);
      font-size: 0.95em;
      box-sizing: border-box;
    }

    .page-68win13__faq-item.active .page-68win13__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px !important;
      opacity: 1;
    }

    .page-68win13__faq-item.active .page-68win13__faq-toggle {
      transform: rotate(45deg); /* Change + to X (or - if rotated 90deg) */
    }

    /* Call to Action Section */
    .page-68win13__final-cta {
      background-color: var(--page-68win13-secondary-color);
      color: var(--page-68win13-light-text-color);
      padding: 50px 20px;
    }

    .page-68win13__final-cta-title {
      font-size: 2em;
      margin-bottom: 15px;
      color: var(--page-68win13-accent-color);
    }

    .page-68win13__final-cta-description {
      font-size: 1.1em;
      margin-bottom: 30px;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-68win13__hero-section {
        min-height: 300px;
        padding-top: 50px; /* Adjust for mobile fixed header */
      }

      .page-68win13__hero-title {
        font-size: 1.8em;
      }

      .page-68win13__hero-subtitle {
        font-size: 1em;
      }

      .page-68win13__cta-button {
        padding: 10px 20px;
        font-size: 1em;
      }

      .page-68win13__floating-button {
        bottom: 15px;
        right: 15px;
        padding: 8px 12px;
        font-size: 0.8em;
      }

      .page-68win13__section {
        padding: 30px 15px;
      }

      .page-68win13__section-title {
        font-size: 1.8em;
      }

      .page-68win13__section-description {
        font-size: 1em;
      }

      .page-68win13__about-content {
        flex-direction: column;
      }

      .page-68win13__game-grid,
      .page-68win13__guide-grid {
        grid-template-columns: 1fr;
      }

      .page-68win13__game-card-image {
        height: 180px;
      }

      .page-68win13__game-card-title {
        font-size: 1.2em;
      }

      .page-68win13__promotion-card {
        padding: 20px;
      }

      .page-68win13__promotion-title {
        font-size: 1.8em;
      }

      .page-68win13__promotion-description {
        font-size: 1em;
      }

      .page-68win13__faq-question {
        padding: 12px 15px;
      }

      .page-68win13__faq-question h3 {
        font-size: 1em;
      }

      .page-68win13__faq-answer {
        padding: 0 15px;
      }

      .page-68win13__faq-item.active .page-68win13__faq-answer {
        padding: 15px !important;
      }

      .page-68win13__final-cta {
        padding: 40px 15px;
      }

      .page-68win13__final-cta-title {
        font-size: 1.8em;
      }

      .page-68win13__final-cta-description {
        font-size: 1em;
      }
    }

    /* Ensure all list items and images are responsive */
    .page-68win13 img {
      max-width: 100%;
      height: auto;
      box-sizing: border-box;
    }

    .page-68win13 ul, .page-68win13 ol {
      list-style: none;
      padding: 0;
      margin: 0;
      width: 100%;
      max-width: 100%;
      box-sizing: border-box;
    }

    .page-68win13 ul li, .page-68win13 ol li {
      box-sizing: border-box;
      word-wrap: break-word;
      overflow-wrap: break-word;
    }

    @media (max-width: 768px) {
      .page-68win13 img {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }
      .page-68win13 ul, .page-68win13 ol {
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        box-sizing: border-box !important;
      }
      .page-68win13 ul li, .page-68win13 ol li {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding-left: 10px !important; /* Adjust padding as needed */
        padding-right: 10px !important; /* Adjust padding as needed */
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
      }
    }