:root {
      --page-bet999-primary-color: #e44d26; /* Cam đỏ */
      --page-bet999-secondary-color: #f7a01a; /* Cam sáng */
      --page-bet999-text-color: #333;
      --page-bet999-light-text-color: #666;
      --page-bet999-background-light: #f9f9f9;
      --page-bet999-background-dark: #eee;
      --page-bet999-white: #fff;
      --page-bet999-border-color: #ddd;
    }

    .page-bet999 {
      font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
      line-height: 1.6;
      color: var(--page-bet999-text-color);
      max-width: 100vw;
      overflow-x: hidden;
      box-sizing: border-box;
    }

    .page-bet999__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
      box-sizing: border-box;
    }

    .page-bet999__hero-section {
      position: relative;
      width: 100%;
      background-color: #0d1a2e; /* Dark background for hero */
      color: var(--page-bet999-white);
      text-align: center;
      padding: 10px 0 50px 0; /* Adjusted padding-top for fixed header */
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-bet999__hero-image {
      width: 100%;
      height: 250px; /* Adjusted height for mobile first */
      object-fit: cover;
      display: block;
      margin-bottom: 20px;
      border-radius: 8px;
    }
    
    .page-bet999__hero-content {
      position: relative;
      z-index: 2;
      padding: 0 20px;
      max-width: 800px;
      margin: 0 auto;
    }

    .page-bet999__hero-title {
      font-size: 2.2em;
      margin-bottom: 10px;
      color: var(--page-bet999-secondary-color);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    }

    .page-bet999__hero-subtitle {
      font-size: 1.1em;
      margin-bottom: 25px;
      color: var(--page-bet999-white);
    }

    .page-bet999__promo-button-fixed {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      background-image: linear-gradient(to right, var(--page-bet999-primary-color), var(--page-bet999-secondary-color));
      color: var(--page-bet999-white);
      padding: 15px 30px;
      border-radius: 50px;
      font-size: 1.2em;
      font-weight: bold;
      text-decoration: none;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
      z-index: 1000;
      transition: all 0.3s ease;
      animation: pulse 2s infinite;
      border: none;
      cursor: pointer;
      display: block; /* Ensure it's a block element */
      text-align: center;
      max-width: 90%;
      box-sizing: border-box;
    }

    .page-bet999__promo-button-fixed:hover {
      transform: translateX(-50%) scale(1.05);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    }

    @keyframes pulse {
      0% { transform: translateX(-50%) scale(1); }
      50% { transform: translateX(-50%) scale(1.03); }
      100% { transform: translateX(-50%) scale(1); }
    }

    .page-bet999__section {
      padding: 40px 0;
      background-color: var(--page-bet999-background-light);
      text-align: center;
      box-sizing: border-box;
    }

    .page-bet999__section--dark {
      background-color: #0d1a2e;
      color: var(--page-bet999-white);
    }

    .page-bet999__section-title {
      font-size: 2em;
      margin-bottom: 20px;
      color: var(--page-bet999-primary-color);
      position: relative;
      padding-bottom: 10px;
    }

    .page-bet999__section-title--light {
      color: var(--page-bet999-secondary-color);
    }

    .page-bet999__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 60px;
      height: 3px;
      background-color: var(--page-bet999-primary-color);
      border-radius: 5px;
    }

    .page-bet999__section-title--light::after {
      background-color: var(--page-bet999-secondary-color);
    }

    .page-bet999__text-block {
      margin-bottom: 30px;
      font-size: 1.05em;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
      text-align: left;
    }

    .page-bet999__features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-bet999__feature-card {
      background-color: var(--page-bet999-white);
      padding: 30px 20px;
      border-radius: 10px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      border: 1px solid var(--page-bet999-border-color);
    }

    .page-bet999__feature-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
    }

    .page-bet999__feature-icon {
      width: 80px;
      height: 80px;
      margin-bottom: 15px;
      display: block;
      margin-left: auto;
      margin-right: auto;
      object-fit: contain;
    }

    .page-bet999__feature-title {
      font-size: 1.4em;
      color: var(--page-bet999-primary-color);
      margin-bottom: 10px;
    }

    .page-bet999__feature-description {
      font-size: 0.95em;
      color: var(--page-bet999-light-text-color);
    }

    .page-bet999__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }

    .page-bet999__game-card {
      background-color: #1a2b42; /* Darker background for game cards */
      color: var(--page-bet999-white);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      border: 1px solid #3a4b62;
    }

    .page-bet999__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
    }

    .page-bet999__game-image {
      width: 100%;
      height: 120px;
      object-fit: cover;
      display: block;
    }

    .page-bet999__game-title {
      font-size: 1.1em;
      padding: 15px 10px;
      font-weight: bold;
      color: var(--page-bet999-secondary-color);
    }

    .page-bet999__cta-button {
      background-image: linear-gradient(to right, var(--page-bet999-primary-color), var(--page-bet999-secondary-color));
      color: var(--page-bet999-white);
      padding: 12px 25px;
      border-radius: 30px;
      font-size: 1.1em;
      font-weight: bold;
      text-decoration: none;
      display: inline-block;
      margin-top: 20px;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      border: none;
      cursor: pointer;
    }

    .page-bet999__cta-button:hover {
      transform: translateY(-2px);
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    }

    .page-bet999__guide-list {
      list-style: none;
      padding: 0;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 20px;
      margin-top: 30px;
      text-align: left;
    }

    .page-bet999__guide-item {
      background-color: var(--page-bet999-white);
      padding: 25px;
      border-radius: 10px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
      border-left: 5px solid var(--page-bet999-primary-color);
      transition: box-shadow 0.3s ease;
    }

    .page-bet999__guide-item:hover {
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    }

    .page-bet999__guide-title {
      font-size: 1.3em;
      color: var(--page-bet999-primary-color);
      margin-bottom: 10px;
    }

    .page-bet999__guide-description {
      font-size: 0.95em;
      color: var(--page-bet999-light-text-color);
    }

    .page-bet999__faq-section {
      background-color: var(--page-bet999-background-dark);
      padding: 40px 0;
      text-align: center;
      box-sizing: border-box;
    }

    .page-bet999__faq-list {
      max-width: 800px;
      margin: 30px auto 0 auto;
      text-align: left;
    }

    .page-bet999__faq-item {
      background-color: var(--page-bet999-white);
      margin-bottom: 15px;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
      overflow: hidden;
      border: 1px solid var(--page-bet999-border-color);
    }

    .page-bet999__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 18px 20px;
      font-size: 1.1em;
      font-weight: bold;
      color: var(--page-bet999-text-color);
      cursor: pointer;
      background-color: var(--page-bet999-white);
      transition: background-color 0.3s ease;
      border-bottom: 1px solid transparent; /* To prevent border jump */
    }

    .page-bet999__faq-question:hover {
      background-color: var(--page-bet999-background-light);
    }

    .page-bet999__faq-question h3 {
      margin: 0;
      font-size: 1.1em;
      color: var(--page-bet999-primary-color);
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-bet999__faq-toggle {
      font-size: 1.5em;
      line-height: 1;
      font-weight: normal;
      color: var(--page-bet999-primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click event */
    }

    .page-bet999__faq-item.active .page-bet999__faq-toggle {
      transform: rotate(45deg);
    }

    .page-bet999__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px;
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.3s ease;
      color: var(--page-bet999-light-text-color);
      font-size: 0.95em;
    }

    .page-bet999__faq-item.active .page-bet999__faq-answer {
      max-height: 2000px !important; /* Sufficiently large to contain content */
      padding: 20px !important;
      opacity: 1;
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-bet999__hero-section {
        padding: 10px 0 30px 0; /* Adjusted padding-top for fixed header */
      }
      .page-bet999__hero-image {
        height: 180px;
      }
      .page-bet999__hero-title {
        font-size: 1.8em;
      }
      .page-bet999__hero-subtitle {
        font-size: 1em;
      }
      .page-bet999__section-title {
        font-size: 1.8em;
      }
      .page-bet999__text-block {
        font-size: 0.95em;
        padding: 0 15px;
      }
      .page-bet999__features-grid,
      .page-bet999__game-grid,
      .page-bet999__guide-list {
        grid-template-columns: 1fr;
        padding: 0 15px;
      }
      .page-bet999__feature-card,
      .page-bet999__game-card,
      .page-bet999__guide-item {
        padding: 20px 15px;
      }
      .page-bet999__game-image {
        height: 100px;
      }
      .page-bet999__game-title {
        font-size: 1em;
      }
      .page-bet999__faq-question {
        padding: 15px;
        font-size: 1em;
      }
      .page-bet999__faq-question h3 {
        font-size: 1em;
      }
      .page-bet999__faq-answer {
        font-size: 0.9em;
        padding: 0 15px;
      }
      .page-bet999__faq-item.active .page-bet999__faq-answer {
        padding: 15px !important;
      }
      .page-bet999__promo-button-fixed {
        padding: 12px 25px;
        font-size: 1em;
      }
    }

    /* Ensure images are responsive */
    .page-bet999 img {
      max-width: 100%;
      height: auto;
      display: block; /* Remove extra space below images */
      margin: 0 auto; /* Center images within their containers */
      box-sizing: border-box;
    }

    /* Specific image containers */
    .page-bet999__hero-image-wrapper,
    .page-bet999__feature-icon-wrapper,
    .page-bet999__game-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      display: block; /* Ensure it takes full width */
      margin: 0 auto; /* Center the wrapper */
    }

    /* Force responsive image styles on mobile */
    @media (max-width: 768px) {
      .page-bet999 img {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-bet999__hero-image-wrapper,
      .page-bet999__feature-icon-wrapper,
      .page-bet999__game-image-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }