/* Reset và biến cơ bản */
    :root {
      --page-6789mobi__primary-color: #004d40; /* Dark Teal */
      --page-6789mobi__secondary-color: #ffb300; /* Amber */
      --page-6789mobi__accent-color: #d84315; /* Deep Orange */
      --page-6789mobi__text-color: #333333;
      --page-6789mobi__light-bg: #f5f5f5;
      --page-6789mobi__white: #ffffff;
      --page-6789mobi__border-color: #e0e0e0;
    }

    .page-6789mobi {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-6789mobi__text-color);
      background-color: var(--page-6789mobi__light-bg);
      padding: 0;
      margin: 0;
    }

    .page-6789mobi__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
      box-sizing: border-box;
    }

    /* Hero Section */
    .page-6789mobi__hero-section {
      position: relative;
      background-color: var(--page-6789mobi__primary-color);
      color: var(--page-6789mobi__white);
      text-align: center;
      padding-bottom: 40px; /* Space for text below banner */
      overflow: hidden;
      padding-top: 10px; /* For fixed header on desktop */
    }

    .page-6789mobi__hero-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      display: flex;
      justify-content: center;
      align-items: center;
      margin-bottom: 20px;
    }

    .page-6789mobi__hero-image {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: 8px;
    }

    .page-6789mobi__hero-content {
      position: relative;
      z-index: 1;
      padding: 0 20px;
    }

    .page-6789mobi__hero-title {
      font-size: 2.8em;
      margin-bottom: 15px;
      color: var(--page-6789mobi__secondary-color);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    }

    .page-6789mobi__hero-description {
      font-size: 1.2em;
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Floating Login Button */
    .page-6789mobi__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: var(--page-6789mobi__accent-color);
      color: var(--page-6789mobi__white);
      padding: 15px 25px;
      border-radius: 50px;
      font-size: 1.1em;
      font-weight: bold;
      text-decoration: none;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      z-index: 1000;
      transition: transform 0.3s ease, background-color 0.3s ease;
      cursor: pointer; /* Indicate it's clickable, even if it's a div */
      border: none; /* For button tag */
      outline: none; /* For button tag */
    }

    .page-6789mobi__floating-button:hover {
      transform: translateY(-3px);
      background-color: #e65100; /* Darker orange on hover */
    }

    /* General Section Styling */
    .page-6789mobi__section {
      padding: 40px 20px;
      background-color: var(--page-6789mobi__white);
      margin-bottom: 20px;
      border-radius: 8px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    }

    .page-6789mobi__section--alt-bg {
      background-color: var(--page-6789mobi__light-bg);
    }

    .page-6789mobi__section-title {
      font-size: 2.2em;
      color: var(--page-6789mobi__primary-color);
      text-align: center;
      margin-bottom: 30px;
      position: relative;
    }

    .page-6789mobi__section-title::after {
      content: '';
      display: block;
      width: 60px;
      height: 4px;
      background-color: var(--page-6789mobi__secondary-color);
      margin: 10px auto 0;
      border-radius: 2px;
    }

    .page-6789mobi__text-center {
      text-align: center;
    }

    /* Features Grid */
    .page-6789mobi__features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 30px;
    }

    .page-6789mobi__feature-item {
      background-color: var(--page-6789mobi__white);
      padding: 25px;
      border-radius: 8px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.08);
      text-align: center;
      transition: transform 0.3s ease;
      border-top: 5px solid var(--page-6789mobi__secondary-color);
    }

    .page-6789mobi__feature-item:hover {
      transform: translateY(-5px);
    }

    .page-6789mobi__feature-icon {
      width: 200px; /* Ensure minimum size */
      height: 200px; /* Ensure minimum size */
      margin-bottom: 15px;
      display: block;
      margin-left: auto;
      margin-right: auto;
      max-width: 100%;
      height: auto;
      object-fit: contain;
    }

    .page-6789mobi__feature-title {
      font-size: 1.4em;
      color: var(--page-6789mobi__primary-color);
      margin-bottom: 10px;
    }

    .page-6789mobi__feature-description {
      font-size: 0.95em;
      color: var(--page-6789mobi__text-color);
    }

    /* Game Categories */
    .page-6789mobi__game-categories {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-6789mobi__game-card {
      background-color: var(--page-6789mobi__white);
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
    }

    .page-6789mobi__game-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
    }

    .page-6789mobi__game-image-wrapper {
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        box-sizing: border-box;
        display: flex;
        justify-content: center;
        align-items: center;
        height: 200px; /* Fixed height for image consistency */
        background-color: #eee;
    }

    .page-6789mobi__game-image {
      width: 100%;
      height: 100%;
      object-fit: cover; /* Crop to fit, maintain aspect ratio */
      display: block;
      max-width: 100%;
    }

    .page-6789mobi__game-content {
      padding: 20px;
    }

    .page-6789mobi__game-title {
      font-size: 1.5em;
      color: var(--page-6789mobi__primary-color);
      margin-bottom: 10px;
    }

    .page-6789mobi__game-description {
      font-size: 0.9em;
      color: var(--page-6789mobi__text-color);
      margin-bottom: 15px;
    }

    /* Promotions Section */
    .page-6789mobi__promotion-card {
      background-color: var(--page-6789mobi__primary-color);
      color: var(--page-6789mobi__white);
      padding: 30px;
      border-radius: 8px;
      text-align: center;
      margin-top: 30px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    }

    .page-6789mobi__promotion-title {
      font-size: 2em;
      color: var(--page-6789mobi__secondary-color);
      margin-bottom: 15px;
    }

    .page-6789mobi__promotion-text {
      font-size: 1.1em;
      margin-bottom: 25px;
    }

    .page-6789mobi__cta-button {
      display: inline-block;
      background-color: var(--page-6789mobi__accent-color);
      color: var(--page-6789mobi__white);
      padding: 12px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.3s ease;
      border: none;
      cursor: pointer;
    }

    .page-6789mobi__cta-button:hover {
      background-color: #e65100;
      transform: translateY(-2px);
    }

    /* How to Get Started */
    .page-6789mobi__steps-list {
      list-style: none;
      padding: 0;
      margin-top: 30px;
    }

    .page-6789mobi__step-item {
      display: flex;
      align-items: center;
      margin-bottom: 25px;
      background-color: var(--page-6789mobi__white);
      padding: 20px;
      border-radius: 8px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.08);
      border-left: 5px solid var(--page-6789mobi__secondary-color);
    }

    .page-6789mobi__step-number {
      font-size: 1.8em;
      font-weight: bold;
      color: var(--page-6789mobi__primary-color);
      margin-right: 20px;
      min-width: 40px;
      text-align: center;
    }

    .page-6789mobi__step-content h3 {
      font-size: 1.3em;
      color: var(--page-6789mobi__primary-color);
      margin-top: 0;
      margin-bottom: 5px;
    }

    .page-6789mobi__step-content p {
      font-size: 0.95em;
      margin-bottom: 0;
    }

    /* FAQ Section */
    .page-6789mobi__faq-list {
      margin-top: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-6789mobi__faq-item {
      background-color: var(--page-6789mobi__white);
      border: 1px solid var(--page-6789mobi__border-color);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    }

    .page-6789mobi__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      cursor: pointer;
      background-color: var(--page-6789mobi__light-bg);
      font-weight: bold;
      color: var(--page-6789mobi__primary-color);
      transition: background-color 0.3s ease;
      user-select: none;
    }

    .page-6789mobi__faq-question:hover {
      background-color: #e0e0e0;
    }

    .page-6789mobi__faq-question h3 {
      margin: 0;
      font-size: 1.1em;
      flex-grow: 1;
      pointer-events: none; /* Prevent h3 from blocking click event */
      color: inherit; /* Ensure h3 color matches parent */
    }

    .page-6789mobi__faq-toggle {
      font-size: 1.5em;
      line-height: 1;
      margin-left: 15px;
      pointer-events: none; /* Prevent toggle from blocking click event */
      min-width: 1em; /* Ensure it has space */
      text-align: center;
    }

    .page-6789mobi__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px; /* Reduced initial padding to zero for smooth animation */
      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-6789mobi__text-color);
    }

    .page-6789mobi__faq-item.active .page-6789mobi__faq-answer {
      max-height: 2000px !important; /* Sufficiently large height */
      padding: 20px !important; /* Restore padding */
      opacity: 1;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-6789mobi__container {
        padding: 15px;
      }

      .page-6789mobi__hero-section {
        padding-top: 10px; /* For fixed header on mobile */
        padding-bottom: 30px;
      }

      .page-6789mobi__hero-title {
        font-size: 2em;
      }

      .page-6789mobi__hero-description {
        font-size: 1em;
      }

      .page-6789mobi__floating-button {
        bottom: 15px;
        right: 15px;
        padding: 12px 20px;
        font-size: 1em;
      }

      .page-6789mobi__section {
        padding: 30px 15px;
      }

      .page-6789mobi__section-title {
        font-size: 1.8em;
        margin-bottom: 20px;
      }

      .page-6789mobi__features-grid,
      .page-6789mobi__game-categories {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .page-6789mobi__feature-icon {
        width: 150px; /* Adjust for smaller screens but maintain min 200px actual image */
        height: 150px;
      }

      .page-6789mobi__game-image-wrapper {
          height: 180px;
      }

      .page-6789mobi__promotion-title {
        font-size: 1.6em;
      }

      .page-6789mobi__promotion-text {
        font-size: 0.95em;
      }

      .page-6789mobi__cta-button {
        padding: 10px 20px;
        font-size: 0.95em;
      }

      .page-6789mobi__step-item {
        flex-direction: column;
        text-align: center;
        padding: 15px;
        border-left: none;
        border-top: 5px solid var(--page-6789mobi__secondary-color);
      }

      .page-6789mobi__step-number {
        margin-right: 0;
        margin-bottom: 10px;
      }

      .page-6789mobi__step-content h3 {
        font-size: 1.1em;
      }

      .page-6789mobi__step-content p {
        font-size: 0.9em;
      }

      .page-6789mobi__faq-question {
        padding: 12px 15px;
      }

      .page-6789mobi__faq-question h3 {
        font-size: 1em;
      }

      .page-6789mobi__faq-toggle {
        font-size: 1.2em;
      }
      .page-6789mobi__faq-answer {
          padding: 0 15px; /* Adjust initial padding for mobile */
      }
      .page-6789mobi__faq-item.active .page-6789mobi__faq-answer {
          padding: 15px !important; /* Adjust active padding for mobile */
      }
    }

    /* Ensure images are always responsive inside their containers */
    .page-6789mobi img {
        max-width: 100% !important;
        height: auto !important;
        display: block;
    }
    .page-6789mobi__image-container { /* Generic container for images */
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        box-sizing: border-box;
    }
    @media (max-width: 768px) {
        .page-6789mobi img {
            max-width: 100% !important;
            height: auto !important;
        }
        .page-6789mobi__image-container {
            width: 100% !important;
            max-width: 100% !important;
            overflow: hidden !important;
            box-sizing: border-box !important;
        }
    }