/* Reset và cơ bản */
    .page-b52v {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: #ffffff; /* White text */
      background-color: #000000; /* Black background */
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }

    .page-b52v__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
      box-sizing: border-box;
    }

    .page-b52v__section {
      padding: 60px 0;
      text-align: center;
    }

    .page-b52v__section-title {
      font-size: 2.8em;
      color: #FFD700; /* Yellow for titles */
      margin-bottom: 30px;
      text-transform: uppercase;
      font-weight: bold;
    }

    .page-b52v__section-subtitle {
      font-size: 1.2em;
      color: #ffffff;
      margin-bottom: 40px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Hero Section */
    .page-b52v__hero-section {
      position: relative;
      padding-top: 150px; /* Safe zone for fixed header */
      padding-bottom: 50px;
      background-color: #000000;
      text-align: center;
    }

    .page-b52v__hero-image {
      width: 100%;
      max-width: 100%;
      height: auto;
      display: block;
      margin: 0 auto 20px auto;
      object-fit: contain;
    }

    .page-b52v__hero-content {
      position: relative;
      z-index: 1;
      padding: 0 15px;
    }

    .page-b52v__hero-title {
      font-size: 3.5em;
      color: #FFD700;
      margin-bottom: 20px;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
      line-height: 1.2;
    }

    .page-b52v__hero-description {
      font-size: 1.4em;
      color: #ffffff;
      margin-bottom: 30px;
      max-width: 900px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-b52v__cta-button {
      display: inline-block;
      background-color: #FFD700; /* Yellow button */
      color: #000000;
      padding: 15px 40px;
      border-radius: 50px;
      font-size: 1.3em;
      font-weight: bold;
      text-decoration: none;
      transition: background-color 0.3s ease, transform 0.3s ease;
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 15px rgba(255, 215, 0, 0.4);
    }

    .page-b52v__cta-button:hover {
      background-color: #e6c200;
      transform: translateY(-3px);
    }

    /* Game Categories */
    .page-b52v__game-categories {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-b52v__game-card {
      background-color: #1a1a1a;
      border-radius: 15px;
      overflow: hidden;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
      padding-bottom: 20px;
    }

    .page-b52v__game-card:hover {
      transform: translateY(-10px);
      box-shadow: 0 12px 25px rgba(255, 215, 0, 0.3);
    }

    .page-b52v__game-card-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      height: 200px; /* Fixed height for image consistency */
      display: flex;
      justify-content: center;
      align-items: center;
      margin-bottom: 15px;
    }

    .page-b52v__game-card-image {
      width: 100%;
      max-width: 100%;
      height: auto;
      display: block;
      object-fit: contain; /* Ensure image fits without cropping or stretching */
      padding: 10px; /* Add some padding around the logo */
      box-sizing: border-box;
    }

    .page-b52v__game-card-title {
      font-size: 1.5em;
      color: #FFD700;
      margin-bottom: 10px;
      padding: 0 15px;
    }

    .page-b52v__game-card-description {
      font-size: 1em;
      color: #cccccc;
      padding: 0 15px;
    }

    /* Promotions */
    .page-b52v__promotions-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-b52v__promo-card {
      background-color: #1a1a1a;
      border-radius: 15px;
      overflow: hidden;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: left;
      padding: 25px;
    }

    .page-b52v__promo-card:hover {
      transform: translateY(-10px);
      box-shadow: 0 12px 25px rgba(255, 215, 0, 0.3);
    }

    .page-b52v__promo-icon {
      width: 80px;
      height: 80px;
      margin-bottom: 15px;
      display: block;
      object-fit: contain;
    }

    .page-b52v__promo-title {
      font-size: 1.8em;
      color: #FFD700;
      margin-bottom: 10px;
    }

    .page-b52v__promo-description {
      font-size: 1.1em;
      color: #cccccc;
    }

    /* Benefits */
    .page-b52v__benefits-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 40px;
      list-style: none;
      padding: 0;
    }

    .page-b52v__benefit-item {
      background-color: #1a1a1a;
      border-radius: 15px;
      padding: 30px;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
      transition: transform 0.3s ease, background-color 0.3s ease;
      text-align: left;
    }

    .page-b52v__benefit-item:hover {
      transform: translateY(-5px);
      background-color: #2a2a2a;
    }

    .page-b52v__benefit-icon {
      width: 60px;
      height: 60px;
      margin-bottom: 15px;
      display: block;
      object-fit: contain;
    }

    .page-b52v__benefit-title {
      font-size: 1.6em;
      color: #FFD700;
      margin-bottom: 10px;
    }

    .page-b52v__benefit-description {
      font-size: 1em;
      color: #cccccc;
    }

    /* How To */
    .page-b52v__how-to-steps {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 30px;
      margin-top: 40px;
    }

    .page-b52v__step-card {
      background-color: #1a1a1a;
      border-radius: 15px;
      padding: 30px;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
      text-align: center;
      flex: 1 1 300px;
      max-width: 350px;
    }

    .page-b52v__step-number {
      font-size: 2.5em;
      color: #FFD700;
      font-weight: bold;
      margin-bottom: 15px;
      background: #333;
      border-radius: 50%;
      width: 70px;
      height: 70px;
      display: inline-flex;
      justify-content: center;
      align-items: center;
      box-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
    }

    .page-b52v__step-title {
      font-size: 1.8em;
      color: #FFD700;
      margin-bottom: 10px;
    }

    .page-b52v__step-description {
      font-size: 1.1em;
      color: #cccccc;
    }

    /* FAQ Section */
    .page-b52v__faq-section {
      text-align: left;
    }

    .page-b52v__faq-list {
      margin-top: 40px;
      max-width: 900px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-b52v__faq-item {
      background-color: #1a1a1a;
      border-radius: 10px;
      margin-bottom: 15px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      overflow: hidden;
    }

    .page-b52v__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      cursor: pointer;
      user-select: none;
      background-color: #2a2a2a;
      transition: background-color 0.3s ease;
    }

    .page-b52v__faq-question:hover {
      background-color: #3a3a3a;
    }

    .page-b52v__faq-question h3 {
      margin: 0;
      font-size: 1.4em;
      color: #FFD700;
      pointer-events: none; /* Prevent h3 from blocking click event on parent */
    }

    .page-b52v__faq-toggle {
      font-size: 1.8em;
      color: #FFD700;
      font-weight: bold;
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click event on parent */
    }

    .page-b52v__faq-item.active .page-b52v__faq-toggle {
      transform: rotate(45deg); /* Plus to X (minus) */
    }

    .page-b52v__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      opacity: 0;
      color: #cccccc;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      box-sizing: border-box;
      text-align: justify;
    }

    .page-b52v__faq-item.active .page-b52v__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px 25px !important;
      opacity: 1;
    }

    /* Responsive Design */
    @media (max-width: 1024px) {
      .page-b52v__hero-title {
        font-size: 3em;
      }
      .page-b52v__hero-description {
        font-size: 1.2em;
      }
      .page-b52v__section-title {
        font-size: 2.2em;
      }
      .page-b52v__game-categories,
      .page-b52v__promotions-grid,
      .page-b52v__benefits-list {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      }
    }

    @media (max-width: 768px) {
      .page-b52v__hero-section {
        padding-top: 100px; /* Adjust safe zone for mobile */
        padding-bottom: 30px;
      }
      .page-b52v__hero-title {
        font-size: 2.5em;
      }
      .page-b52v__hero-description {
        font-size: 1.1em;
      }
      .page-b52v__cta-button {
        padding: 12px 30px;
        font-size: 1.1em;
      }
      .page-b52v__section {
        padding: 40px 0;
      }
      .page-b52v__section-title {
        font-size: 1.8em;
      }
      .page-b52v__section-subtitle {
        font-size: 1em;
      }

      /* List item responsive */
      .page-b52v__game-categories,
      .page-b52v__promotions-grid,
      .page-b52v__benefits-list,
      .page-b52v__how-to-steps {
        grid-template-columns: 1fr; /* Single column for all grids */
        gap: 20px;
      }

      .page-b52v__game-card,
      .page-b52v__promo-card,
      .page-b52v__benefit-item,
      .page-b52v__step-card {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding: 20px !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
      }

      .page-b52v__game-card-image-wrapper,
      .page-b52v__promo-icon,
      .page-b52v__benefit-icon {
        width: 100%;
        max-width: 100%;
        height: auto; /* Allow height to adjust */
        margin-left: auto;
        margin-right: auto;
      }

      .page-b52v__game-card-image {
        padding: 5px;
      }

      /* Image responsive */
      .page-b52v img {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-b52v__game-card-image-wrapper,
      .page-b52v__promo-card > img, /* Direct image child */
      .page-b52v__benefit-item > img { /* Direct image child */
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }

      .page-b52v__faq-question {
        padding: 15px 20px;
      }
      .page-b52v__faq-question h3 {
        font-size: 1.2em;
      }
      .page-b52v__faq-toggle {
        font-size: 1.5em;
      }
      .page-b52v__faq-answer {
        padding: 0 20px;
      }
      .page-b52v__faq-item.active .page-b52v__faq-answer {
        padding: 15px 20px !important;
      }
    }

    @media (max-width: 480px) {
      .page-b52v__hero-title {
        font-size: 2em;
      }
      .page-b52v__hero-description {
        font-size: 1em;
      }
      .page-b52v__section-title {
        font-size: 1.5em;
      }
      .page-b52v__cta-button {
        font-size: 1em;
        padding: 10px 25px;
      }
      .page-b52v__faq-question h3 {
        font-size: 1.1em;
      }
    }