:root {
      --page-9vndbet-primary-color: #e44d26; /* Cam đỏ */
      --page-9vndbet-secondary-color: #f7b731; /* Vàng cam */
      --page-9vndbet-background-dark: #1a1a2e; /* Xanh tím than */
      --page-9vndbet-background-light: #2c2c4a; /* Xanh tím nhạt */
      --page-9vndbet-text-light: #ffffff;
      --page-9vndbet-text-dark: #cccccc;
      --page-9vndbet-border-color: #3e3e6b;
      --page-9vndbet-button-bg: #e44d26;
      --page-9vndbet-button-text: #ffffff;
      --page-9vndbet-accent-color: #4CAF50; /* Xanh lá cho điểm nhấn */
    }

    .page-9vndbet {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      color: var(--page-9vndbet-text-light);
      background-color: var(--page-9vndbet-background-dark);
      line-height: 1.6;
      overflow-x: hidden;
    }

    .page-9vndbet__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
      box-sizing: border-box;
    }

    .page-9vndbet__section {
      padding: 40px 0;
      margin-bottom: 20px;
      background-color: var(--page-9vndbet-background-light);
      border-radius: 10px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    }

    .page-9vndbet__section--dark {
      background-color: var(--page-9vndbet-background-dark);
    }

    .page-9vndbet__heading-primary {
      font-size: 2.8em;
      color: var(--page-9vndbet-secondary-color);
      text-align: center;
      margin-bottom: 20px;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
      padding-top: 10px; /* Clear fixed header */
    }

    .page-9vndbet__heading-secondary {
      font-size: 2em;
      color: var(--page-9vndbet-primary-color);
      text-align: center;
      margin-bottom: 30px;
      position: relative;
    }

    .page-9vndbet__heading-secondary::after {
      content: '';
      display: block;
      width: 60px;
      height: 3px;
      background-color: var(--page-9vndbet-secondary-color);
      margin: 10px auto 0;
      border-radius: 5px;
    }

    .page-9vndbet__paragraph {
      font-size: 1.1em;
      margin-bottom: 15px;
      color: var(--page-9vndbet-text-dark);
      text-align: justify;
    }

    .page-9vndbet__button {
      display: inline-block;
      background-color: var(--page-9vndbet-button-bg);
      color: var(--page-9vndbet-button-text);
      padding: 12px 25px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
      font-size: 1em;
    }

    .page-9vndbet__button:hover {
      background-color: #ff6a00;
      transform: translateY(-2px);
    }

    .page-9vndbet__button--secondary {
      background-color: var(--page-9vndbet-secondary-color);
      color: var(--page-9vndbet-background-dark);
    }

    .page-9vndbet__button--secondary:hover {
      background-color: #ffc84d;
    }

    /* Hero Section */
    .page-9vndbet__hero-section {
      text-align: center;
      padding: 10px 0 60px; /* Adjusted padding-top for fixed header */
      background-size: cover;
      background-position: center;
      color: var(--page-9vndbet-text-light);
      position: relative;
      overflow: hidden;
    }

    .page-9vndbet__hero-image-wrapper {
      position: relative;
      width: 100%;
      padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
      margin-bottom: 30px;
      overflow: hidden;
      border-radius: 10px;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
    }

    .page-9vndbet__hero-image {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      max-width: 100%;
      display: block;
    }

    .page-9vndbet__hero-content {
      position: relative;
      z-index: 1;
      padding: 0 20px;
    }

    /* Floating Button */
    .page-9vndbet__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: var(--page-9vndbet-primary-color);
      color: var(--page-9vndbet-text-light);
      padding: 12px 20px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
      z-index: 1000;
      display: flex;
      align-items: center;
      gap: 8px;
      animation: page-9vndbet__pulse 1.5s infinite;
      transition: background-color 0.3s ease;
    }

    .page-9vndbet__floating-button:hover {
      background-color: #ff6a00;
    }

    @keyframes page-9vndbet__pulse {
      0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(228, 77, 38, 0.7); }
      70% { transform: scale(1.05); box-shadow: 0 0 0 15px rgba(228, 77, 38, 0); }
      100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(228, 77, 38, 0); }
    }

    /* Game Categories */
    .page-9vndbet__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      padding: 20px;
    }

    .page-9vndbet__game-card {
      background-color: var(--page-9vndbet-background-dark);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      height: 100%; /* Ensure cards in a row have equal height */
      display: flex;
      flex-direction: column;
    }

    .page-9vndbet__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 15px rgba(0, 0, 0, 0.4);
    }

    .page-9vndbet__game-card-image {
      width: 100%;
      height: 200px; /* Fixed height for image */
      object-fit: cover;
      max-width: 100%;
      display: block;
    }

    .page-9vndbet__game-card-content {
      padding: 20px;
      flex-grow: 1; /* Allow content to grow and push button to bottom */
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-9vndbet__game-card-title {
      font-size: 1.4em;
      color: var(--page-9vndbet-secondary-color);
      margin-bottom: 10px;
    }

    .page-9vndbet__game-card-description {
      font-size: 0.95em;
      color: var(--page-9vndbet-text-dark);
      margin-bottom: 20px;
      flex-grow: 1;
    }

    /* Promotions */
    .page-9vndbet__promotion-item {
      display: flex;
      align-items: center;
      background-color: var(--page-9vndbet-background-dark);
      border-radius: 10px;
      margin-bottom: 20px;
      padding: 20px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
      gap: 20px;
    }

    .page-9vndbet__promotion-image {
      width: 150px;
      height: 150px;
      object-fit: cover;
      border-radius: 8px;
      flex-shrink: 0;
      max-width: 100%;
      display: block;
    }

    .page-9vndbet__promotion-content {
      flex-grow: 1;
    }

    .page-9vndbet__promotion-title {
      font-size: 1.5em;
      color: var(--page-9vndbet-primary-color);
      margin-bottom: 10px;
    }

    .page-9vndbet__promotion-description {
      color: var(--page-9vndbet-text-dark);
      margin-bottom: 15px;
    }

    /* How to Register */
    .page-9vndbet__steps-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      padding: 20px;
      counter-reset: step-counter;
    }

    .page-9vndbet__step-card {
      background-color: var(--page-9vndbet-background-dark);
      border-radius: 10px;
      padding: 25px;
      text-align: center;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      position: relative;
    }

    .page-9vndbet__step-card::before {
      counter-increment: step-counter;
      content: counter(step-counter);
      position: absolute;
      top: -15px;
      left: 50%;
      transform: translateX(-50%);
      background-color: var(--page-9vndbet-primary-color);
      color: var(--page-9vndbet-text-light);
      width: 40px;
      height: 40px;
      border-radius: 50%;
      display: flex;
      justify-content: center;
      align-items: center;
      font-size: 1.5em;
      font-weight: bold;
      border: 3px solid var(--page-9vndbet-background-light);
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
    }

    .page-9vndbet__step-card-image {
      width: 100%;
      height: 180px;
      object-fit: contain;
      margin-bottom: 15px;
      max-width: 100%;
      display: block;
    }

    .page-9vndbet__step-card-title {
      font-size: 1.3em;
      color: var(--page-9vndbet-secondary-color);
      margin-bottom: 10px;
    }

    .page-9vndbet__step-card-description {
      font-size: 1em;
      color: var(--page-9vndbet-text-dark);
    }

    /* Why Choose Us */
    .page-9vndbet__feature-list {
      list-style: none;
      padding: 0;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 20px;
      padding: 20px;
    }

    .page-9vndbet__feature-item {
      background-color: var(--page-9vndbet-background-dark);
      padding: 25px;
      border-radius: 10px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
      display: flex;
      align-items: flex-start;
      gap: 15px;
      box-sizing: border-box; /* Crucial for mobile responsiveness */
    }

    .page-9vndbet__feature-icon {
      width: 60px;
      height: 60px;
      object-fit: contain;
      flex-shrink: 0;
      max-width: 100%;
      display: block;
    }

    .page-9vndbet__feature-content {
      flex-grow: 1;
    }

    .page-9vndbet__feature-title {
      font-size: 1.3em;
      color: var(--page-9vndbet-primary-color);
      margin-bottom: 8px;
    }

    .page-9vndbet__feature-description {
      font-size: 0.95em;
      color: var(--page-9vndbet-text-dark);
    }

    /* FAQ Section */
    .page-9vndbet__faq-list {
      list-style: none;
      padding: 0;
      max-width: 800px;
      margin: 0 auto;
    }

    .page-9vndbet__faq-item {
      background-color: var(--page-9vndbet-background-dark);
      margin-bottom: 15px;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    }

    .page-9vndbet__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: var(--page-9vndbet-background-light);
      cursor: pointer;
      user-select: none;
      font-size: 1.1em;
      font-weight: bold;
      color: var(--page-9vndbet-secondary-color);
      transition: background-color 0.3s ease;
    }

    .page-9vndbet__faq-question:hover {
      background-color: #3a3a5a;
    }

    .page-9vndbet__faq-question h3 {
      margin: 0;
      flex-grow: 1;
      pointer-events: none; /* Prevent h3 from blocking click on parent */
      color: inherit; /* Ensure h3 color matches parent */
    }

    .page-9vndbet__faq-toggle {
      font-size: 1.8em;
      line-height: 1;
      margin-left: 15px;
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle from blocking click on parent */
    }

    .page-9vndbet__faq-item.active .page-9vndbet__faq-toggle {
      transform: rotate(45deg);
    }

    .page-9vndbet__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px;
      color: var(--page-9vndbet-text-dark);
      font-size: 1em;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
    }

    .page-9vndbet__faq-item.active .page-9vndbet__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px !important;
      opacity: 1;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-9vndbet__container {
        padding: 15px;
      }

      .page-9vndbet__section {
        padding: 30px 0;
      }

      .page-9vndbet__heading-primary {
        font-size: 2em;
        padding-top: 10px; /* Ensure consistency for mobile */
      }

      .page-9vndbet__heading-secondary {
        font-size: 1.6em;
      }

      .page-9vndbet__paragraph {
        font-size: 1em;
      }

      .page-9vndbet__hero-image-wrapper {
        padding-bottom: 75%; /* 4:3 aspect ratio for mobile banner */
      }

      .page-9vndbet__floating-button {
        bottom: 15px;
        right: 15px;
        padding: 10px 18px;
        font-size: 0.9em;
      }

      .page-9vndbet__game-grid {
        grid-template-columns: 1fr;
        padding: 15px;
      }

      .page-9vndbet__game-card-image {
        height: 180px;
      }

      .page-9vndbet__game-card-title {
        font-size: 1.2em;
      }

      .page-9vndbet__promotion-item {
        flex-direction: column;
        text-align: center;
        padding: 15px;
      }

      .page-9vndbet__promotion-image {
        width: 100%;
        height: 150px;
        margin-bottom: 15px;
      }

      .page-9vndbet__promotion-title {
        font-size: 1.3em;
      }

      .page-9vndbet__steps-grid {
        grid-template-columns: 1fr;
        padding: 15px;
      }

      .page-9vndbet__feature-list {
        grid-template-columns: 1fr;
        padding: 15px;
      }

      .page-9vndbet__feature-item {
        padding: 20px;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }

      .page-9vndbet__feature-icon {
        width: 50px;
        height: 50px;
      }

      .page-9vndbet__faq-list {
        padding: 0 15px;
      }

      .page-9vndbet__faq-question {
        font-size: 1em;
        padding: 12px 15px;
      }

      .page-9vndbet__faq-answer {
        padding: 0 15px;
      }

      .page-9vndbet__faq-item.active .page-9vndbet__faq-answer {
        padding: 15px !important;
      }
    }

    /* Image responsive default */
    .page-9vndbet img {
      max-width: 100%;
      height: auto;
      display: block; /* Remove extra space below images */
    }

    /* Ensure all image containers are responsive */
    .page-9vndbet__hero-image-wrapper,
    .page-9vndbet__game-card-image,
    .page-9vndbet__promotion-image,
    .page-9vndbet__step-card-image,
    .page-9vndbet__feature-icon {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
    }

    @media (max-width: 768px) {
      .page-9vndbet img {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }

      .page-9vndbet__hero-image-wrapper,
      .page-9vndbet__game-card-image,
      .page-9vndbet__promotion-image,
      .page-9vndbet__step-card-image,
      .page-9vndbet__feature-icon {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
      }

      /* Specific adjustments for list items */
      .page-9vndbet__feature-list {
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        box-sizing: border-box !important;
      }
      .page-9vndbet__feature-item {
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
        padding-left: 15px !important;
        padding-right: 15px !important;
      }
      .page-9vndbet__game-grid,
      .page-9vndbet__steps-grid {
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        box-sizing: border-box !important;
      }
      .page-9vndbet__game-card,
      .page-9vndbet__step-card {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }
    }