:root {
      --page-win789app__primary-color: #00cc66; /* Xanh lá cây */
      --page-win789app__secondary-color: #f0b90b; /* Vàng */
      --page-win789app__dark-bg: #1a1a1a;
      --page-win789app__light-text: #f0f0f0;
      --page-win789app__gray-text: #cccccc;
      --page-win789app__card-bg: #2a2a2a;
      --page-win789app__border-color: #3a3a3a;
    }

    .page-win789app {
      font-family: 'Arial', sans-serif;
      color: var(--page-win789app__light-text);
      background-color: var(--page-win789app__dark-bg);
      line-height: 1.6;
      padding-bottom: 80px; /* Space for fixed footer */
    }

    .page-win789app__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    .page-win789app__hero-section {
      position: relative;
      text-align: center;
      padding: 10px 0 60px; /* Adjusted padding-top for fixed header */
      overflow: hidden;
      background-color: #000;
    }

    .page-win789app__hero-image {
      width: 100%;
      height: 400px;
      object-fit: cover;
      display: block;
      margin: 0 auto;
    }

    .page-win789app__hero-content {
      position: relative;
      z-index: 1;
      max-width: 900px;
      margin: -100px auto 0; /* Move content up to overlap image slightly */
      background: rgba(0, 0, 0, 0.7);
      padding: 30px 20px;
      border-radius: 15px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    }

    .page-win789app__hero-title {
      font-size: 2.8em;
      color: var(--page-win789app__primary-color);
      margin-bottom: 15px;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    }

    .page-win789app__hero-description {
      font-size: 1.1em;
      color: var(--page-win789app__gray-text);
      margin-bottom: 30px;
    }

    .page-win789app__download-buttons {
      display: flex;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
    }

    .page-win789app__download-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 15px 30px;
      background-color: var(--page-win789app__primary-color);
      color: var(--page-win789app__dark-bg);
      font-size: 1.1em;
      font-weight: bold;
      border-radius: 8px;
      text-decoration: none;
      transition: background-color 0.3s ease, transform 0.2s ease;
      min-width: 200px;
      box-sizing: border-box;
      border: none;
      cursor: pointer;
    }

    .page-win789app__download-btn:hover {
      background-color: #00e673;
      transform: translateY(-3px);
    }

    .page-win789app__download-btn svg {
      margin-right: 10px;
    }

    .page-win789app__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: var(--page-win789app__secondary-color);
      color: var(--page-win789app__dark-bg);
      padding: 15px 25px;
      border-radius: 50px;
      font-size: 1.1em;
      font-weight: bold;
      text-align: center;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
      z-index: 1000;
      cursor: pointer;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .page-win789app__floating-button:hover {
      background-color: #ffd700;
      transform: translateY(-3px);
    }

    .page-win789app__floating-button::before {
      content: '🎁';
      margin-right: 10px;
      font-size: 1.2em;
    }

    .page-win789app__section {
      padding: 60px 0;
      text-align: center;
    }

    .page-win789app__section-title {
      font-size: 2.2em;
      color: var(--page-win789app__primary-color);
      margin-bottom: 40px;
      position: relative;
      display: inline-block;
    }

    .page-win789app__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: -10px;
      transform: translateX(-50%);
      width: 80px;
      height: 4px;
      background-color: var(--page-win789app__secondary-color);
      border-radius: 2px;
    }

    .page-win789app__features-grid,
    .page-win789app__games-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-win789app__feature-item,
    .page-win789app__game-card {
      background-color: var(--page-win789app__card-bg);
      padding: 30px;
      border-radius: 12px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      border: 1px solid var(--page-win789app__border-color);
      box-sizing: border-box;
    }

    .page-win789app__feature-item:hover,
    .page-win789app__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
    }

    .page-win789app__feature-icon {
      font-size: 3em;
      color: var(--page-win789app__secondary-color);
      margin-bottom: 20px;
    }

    .page-win789app__feature-title,
    .page-win789app__game-title {
      font-size: 1.5em;
      color: var(--page-win789app__primary-color);
      margin-bottom: 15px;
    }

    .page-win789app__feature-description,
    .page-win789app__game-description {
      color: var(--page-win789app__gray-text);
      font-size: 0.95em;
    }

    .page-win789app__game-image {
      width: 100%;
      max-width: 300px;
      height: 200px;
      object-fit: cover;
      border-radius: 8px;
      margin-bottom: 15px;
      display: block;
      margin-left: auto;
      margin-right: auto;
    }

    .page-win789app__steps-list {
      display: flex;
      flex-direction: column;
      gap: 30px;
      margin-top: 40px;
      text-align: left;
    }

    .page-win789app__step-item {
      background-color: var(--page-win789app__card-bg);
      padding: 30px;
      border-radius: 12px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
      display: flex;
      align-items: flex-start;
      gap: 25px;
      border: 1px solid var(--page-win789app__border-color);
      box-sizing: border-box;
    }

    .page-win789app__step-number {
      flex-shrink: 0;
      width: 50px;
      height: 50px;
      background-color: var(--page-win789app__primary-color);
      color: var(--page-win789app__dark-bg);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.8em;
      font-weight: bold;
    }

    .page-win789app__step-content {
      flex-grow: 1;
    }

    .page-win789app__step-title {
      font-size: 1.6em;
      color: var(--page-win789app__secondary-color);
      margin-bottom: 10px;
    }

    .page-win789app__step-description {
      color: var(--page-win789app__gray-text);
      font-size: 1em;
    }

    .page-win789app__step-image {
      width: 100%;
      max-width: 400px;
      height: auto;
      border-radius: 8px;
      margin-top: 20px;
      display: block;
    }
    
    .page-win789app__promotions-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-win789app__promotion-card {
      background-color: var(--page-win789app__card-bg);
      padding: 25px;
      border-radius: 12px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
      text-align: left;
      border: 1px solid var(--page-win789app__border-color);
      box-sizing: border-box;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-win789app__promotion-title {
      font-size: 1.4em;
      color: var(--page-win789app__primary-color);
      margin-bottom: 10px;
    }

    .page-win789app__promotion-description {
      color: var(--page-win789app__gray-text);
      font-size: 0.95em;
      margin-bottom: 20px;
      flex-grow: 1;
    }

    .page-win789app__promotion-button {
      display: inline-block;
      padding: 12px 25px;
      background-color: var(--page-win789app__secondary-color);
      color: var(--page-win789app__dark-bg);
      font-weight: bold;
      border-radius: 6px;
      text-decoration: none;
      transition: background-color 0.3s ease;
      align-self: flex-start;
      border: none;
      cursor: pointer;
    }

    .page-win789app__promotion-button:hover {
      background-color: #ffd700;
    }

    .page-win789app__faq-section {
      text-align: left;
    }

    .page-win789app__faq-list {
      margin-top: 40px;
      list-style: none;
      padding: 0;
    }

    .page-win789app__faq-item {
      background-color: var(--page-win789app__card-bg);
      margin-bottom: 15px;
      border-radius: 8px;
      overflow: hidden;
      border: 1px solid var(--page-win789app__border-color);
      box-sizing: border-box;
    }

    .page-win789app__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      cursor: pointer;
      background-color: #333;
      transition: background-color 0.3s ease;
      user-select: none;
    }

    .page-win789app__faq-question:hover {
      background-color: #444;
    }

    .page-win789app__faq-question h3 {
      margin: 0;
      font-size: 1.25em;
      color: var(--page-win789app__light-text);
      pointer-events: none; /* Prevent h3 from blocking click */
    }

    .page-win789app__faq-toggle {
      font-size: 1.8em;
      font-weight: bold;
      color: var(--page-win789app__primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle from blocking click */
    }

    .page-win789app__faq-item.active .page-win789app__faq-toggle {
      transform: rotate(45deg); /* Change + to X or - */
    }

    .page-win789app__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      background-color: var(--page-win789app__card-bg);
      color: var(--page-win789app__gray-text);
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      font-size: 0.95em;
    }

    .page-win789app__faq-item.active .page-win789app__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px 25px !important;
      opacity: 1;
    }

    .page-win789app__call-to-action {
      background-color: #000;
      padding: 80px 0;
      text-align: center;
      border-top: 5px solid var(--page-win789app__primary-color);
    }

    .page-win789app__cta-title {
      font-size: 2.5em;
      color: var(--page-win789app__secondary-color);
      margin-bottom: 20px;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    }

    .page-win789app__cta-description {
      font-size: 1.2em;
      color: var(--page-win789app__gray-text);
      margin-bottom: 40px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-win789app__cta-button {
      display: inline-block;
      padding: 18px 40px;
      background-color: var(--page-win789app__primary-color);
      color: var(--page-win789app__dark-bg);
      font-size: 1.3em;
      font-weight: bold;
      border-radius: 10px;
      text-decoration: none;
      transition: background-color 0.3s ease, transform 0.2s ease;
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
      border: none;
      cursor: pointer;
    }

    .page-win789app__cta-button:hover {
      background-color: #00e673;
      transform: translateY(-5px);
    }

    /* Responsive Design */
    @media (max-width: 1024px) {
      .page-win789app__hero-title {
        font-size: 2.4em;
      }
      .page-win789app__section-title {
        font-size: 2em;
      }
      .page-win789app__feature-title,
      .page-win789app__game-title {
        font-size: 1.3em;
      }
      .page-win789app__step-title {
        font-size: 1.4em;
      }
      .page-win789app__cta-title {
        font-size: 2.2em;
      }
    }

    @media (max-width: 768px) {
      .page-win789app__hero-section {
        padding-top: 10px; /* Adjust for mobile fixed header */
        height: auto;
      }
      .page-win789app__hero-image {
        height: 250px;
      }
      .page-win789app__hero-content {
        margin-top: -80px;
        padding: 25px 15px;
      }
      .page-win789app__hero-title {
        font-size: 2em;
      }
      .page-win789app__hero-description {
        font-size: 1em;
      }
      .page-win789app__download-buttons {
        flex-direction: column;
        gap: 15px;
      }
      .page-win789app__download-btn {
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
        padding: 12px 20px;
        font-size: 1em;
      }
      .page-win789app__floating-button {
        bottom: 15px;
        right: 15px;
        padding: 12px 20px;
        font-size: 1em;
      }
      .page-win789app__section {
        padding: 40px 0;
      }
      .page-win789app__section-title {
        font-size: 1.8em;
        margin-bottom: 30px;
      }
      .page-win789app__features-grid,
      .page-win789app__games-grid,
      .page-win789app__promotions-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }
      .page-win789app__feature-item,
      .page-win789app__game-card,
      .page-win789app__promotion-card {
        padding: 20px;
      }
      .page-win789app__feature-icon {
        font-size: 2.5em;
      }
      .page-win789app__feature-title,
      .page-win789app__game-title {
        font-size: 1.2em;
      }
      .page-win789app__step-item {
        flex-direction: column;
        align-items: center;
        gap: 15px;
        padding: 20px;
      }
      .page-win789app__step-number {
        width: 45px;
        height: 45px;
        font-size: 1.5em;
      }
      .page-win789app__step-content {
        text-align: center;
      }
      .page-win789app__step-title {
        font-size: 1.3em;
      }
      .page-win789app__step-description {
        font-size: 0.9em;
      }
      .page-win789app__step-image {
        max-width: 100%;
      }
      .page-win789app__promotion-title {
        font-size: 1.3em;
      }
      .page-win789app__promotion-button {
        padding: 10px 20px;
        font-size: 0.95em;
      }
      .page-win789app__faq-question {
        padding: 15px 20px;
      }
      .page-win789app__faq-question h3 {
        font-size: 1.1em;
      }
      .page-win789app__faq-toggle {
        font-size: 1.5em;
      }
      .page-win789app__faq-answer {
        padding: 0 20px;
      }
      .page-win789app__faq-item.active .page-win789app__faq-answer {
        padding: 15px 20px !important;
      }
      .page-win789app__cta-title {
        font-size: 2em;
      }
      .page-win789app__cta-description {
        font-size: 1em;
      }
      .page-win789app__cta-button {
        padding: 15px 30px;
        font-size: 1.1em;
      }

      /* List item specific responsive overrides */
      .page-win789app__features-grid > *,
      .page-win789app__games-grid > *,
      .page-win789app__steps-list > *,
      .page-win789app__promotions-grid > *,
      .page-win789app__faq-list > * {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }
      .page-win789app__features-grid,
      .page-win789app__games-grid,
      .page-win789app__steps-list,
      .page-win789app__promotions-grid,
      .page-win789app__faq-list {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }
    }

    @media (max-width: 480px) {
      .page-win789app__hero-title {
        font-size: 1.8em;
      }
      .page-win789app__section-title {
        font-size: 1.6em;
      }
      .page-win789app__cta-title {
        font-size: 1.8em;
      }
    }