:root {
      --primary-color: #e44d26; /* Cam */
      --secondary-color: #333; /* Đen đậm */
      --accent-color: #007bff; /* Xanh dương */
      --background-dark: #1a1a1a;
      --text-light: #f0f0f0;
      --text-dark: #333;
      --border-color: #444;
      --button-bg-hover: #ff6633;
    }

    /* Base styles for page-28ta */
    .page-28ta {
      font-family: 'Arial', sans-serif;
      color: var(--text-light);
      background-color: var(--background-dark);
      line-height: 1.6;
      padding-bottom: 80px; /* Space for floating buttons */
    }

    .page-28ta__section {
      padding: 40px 20px;
      max-width: 1200px;
      margin: 0 auto;
      text-align: center;
    }

    .page-28ta__section--dark {
      background-color: #222;
    }

    .page-28ta__section-title {
      font-size: 2.5em;
      color: var(--primary-color);
      margin-bottom: 20px;
      text-transform: uppercase;
      font-weight: bold;
    }

    .page-28ta__section-subtitle {
      font-size: 1.2em;
      color: var(--text-light);
      margin-bottom: 40px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Hero Section */
    .page-28ta__hero-section {
      background-color: #0d0d0d;
      padding: 10px 0 60px 0; /* Adjusted padding-top */
      position: relative;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      min-height: 500px;
    }

    .page-28ta__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: 0;
      opacity: 0.3;
    }

    .page-28ta__hero-content {
      position: relative;
      z-index: 1;
      text-align: center;
      padding: 20px;
      max-width: 900px;
      color: var(--text-light);
    }

    .page-28ta__hero-title {
      font-size: 3.5em;
      color: var(--primary-color);
      margin-bottom: 15px;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    }

    .page-28ta__hero-description {
      font-size: 1.3em;
      margin-bottom: 30px;
      line-height: 1.5;
      color: #ccc;
    }

    /* Floating Buttons */
    .page-28ta__floating-buttons {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      display: flex;
      justify-content: space-around;
      padding: 10px 0;
      background-color: rgba(0, 0, 0, 0.9);
      box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.5);
      z-index: 1000;
      border-top: 1px solid var(--border-color);
    }

    .page-28ta__button {
      display: inline-block;
      padding: 12px 25px;
      background-color: var(--primary-color);
      color: var(--text-light);
      text-decoration: none;
      border-radius: 8px;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.2s ease;
      text-align: center;
      flex: 1;
      margin: 0 5px;
      max-width: 180px;
    }

    .page-28ta__button:hover {
      background-color: var(--button-bg-hover);
      transform: translateY(-2px);
    }

    .page-28ta__button--secondary {
      background-color: #007bff; /* Xanh dương */
    }

    .page-28ta__button--secondary:hover {
      background-color: #0056b3;
    }

    /* About Section */
    .page-28ta__about-content {
      display: flex;
      flex-direction: column;
      gap: 20px;
      text-align: left;
    }

    .page-28ta__about-text {
      font-size: 1.1em;
      color: #ccc;
    }

    /* Game Categories */
    .page-28ta__game-categories {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-28ta__game-card {
      background-color: #2a2a2a;
      border-radius: 12px;
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      height: 100%;
    }

    .page-28ta__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
    }

    .page-28ta__game-card-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
      max-width: 100%;
      box-sizing: border-box;
    }

    .page-28ta__game-card-content {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-28ta__game-card-title {
      font-size: 1.6em;
      color: var(--primary-color);
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-28ta__game-card-description {
      font-size: 0.95em;
      color: #b0b0b0;
      margin-bottom: 15px;
    }

    /* Promotions */
    .page-28ta__promotions-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-28ta__promotion-card {
      background-color: #2a2a2a;
      border-radius: 12px;
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      text-align: left;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .page-28ta__promotion-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
    }

    .page-28ta__promotion-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
      max-width: 100%;
      box-sizing: border-box;
    }

    .page-28ta__promotion-content {
      padding: 20px;
    }

    .page-28ta__promotion-title {
      font-size: 1.5em;
      color: var(--primary-color);
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-28ta__promotion-description {
      font-size: 0.95em;
      color: #b0b0b0;
      margin-bottom: 15px;
    }

    /* Providers & Payments */
    .page-28ta__logo-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      margin-top: 40px;
      align-items: center;
      justify-items: center;
    }

    .page-28ta__logo-item {
      background-color: #2a2a2a;
      padding: 15px;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
      transition: transform 0.3s ease;
      display: flex;
      justify-content: center;
      align-items: center;
      min-height: 80px;
      color: var(--text-light);
      font-weight: bold;
      font-size: 1.1em;
      text-align: center;
    }

    .page-28ta__logo-item:hover {
      transform: translateY(-3px);
    }

    /* FAQ Section */
    .page-28ta__faq-section {
      background-color: var(--background-dark);
      padding: 60px 20px;
    }

    .page-28ta__faq-container {
      max-width: 900px;
      margin: 0 auto;
      text-align: left;
    }

    .page-28ta__faq-item {
      background-color: #2a2a2a;
      margin-bottom: 15px;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    }

    .page-28ta__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: #333;
      color: var(--text-light);
      cursor: pointer;
      user-select: none;
      font-size: 1.2em;
      font-weight: bold;
      transition: background-color 0.3s ease;
    }

    .page-28ta__faq-question:hover {
      background-color: #444;
    }

    .page-28ta__faq-question h3 {
      margin: 0;
      color: var(--primary-color);
      flex-grow: 1;
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-28ta__faq-toggle {
      font-size: 1.5em;
      margin-left: 15px;
      color: var(--primary-color);
      pointer-events: none; /* Prevent toggle from blocking click event */
      transition: transform 0.3s ease;
    }

    .page-28ta__faq-item.active .page-28ta__faq-toggle {
      transform: rotate(45deg); /* Change + to X-like or simply - */
    }

    .page-28ta__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px; /* Initial padding */
      color: #ccc;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      text-align: left;
      font-size: 1em;
    }

    .page-28ta__faq-item.active .page-28ta__faq-answer {
      max-height: 2000px !important; /* Sufficiently large value */
      padding: 20px !important; /* Adjusted padding for content */
      opacity: 1;
    }

    /* Call to Action */
    .page-28ta__cta-section {
      background-color: var(--primary-color);
      color: var(--text-light);
      padding: 50px 20px;
    }

    .page-28ta__cta-title {
      font-size: 2.2em;
      margin-bottom: 20px;
      font-weight: bold;
    }

    .page-28ta__cta-description {
      font-size: 1.1em;
      margin-bottom: 30px;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-28ta__section {
        padding: 30px 15px;
      }

      .page-28ta__section-title {
        font-size: 2em;
      }

      .page-28ta__hero-title {
        font-size: 2.5em;
      }

      .page-28ta__hero-description {
        font-size: 1.1em;
      }

      .page-28ta__floating-buttons {
        padding: 8px 0;
      }

      .page-28ta__button {
        padding: 10px 15px;
        font-size: 1em;
        margin: 0 3px;
        max-width: unset;
      }

      .page-28ta__game-categories,
      .page-28ta__promotions-grid,
      .page-28ta__logo-grid {
        grid-template-columns: 1fr;
      }

      .page-28ta__game-card-image,
      .page-28ta__promotion-image {
        height: 180px;
      }

      .page-28ta__game-card-title,
      .page-28ta__promotion-title {
        font-size: 1.4em;
      }

      .page-28ta__logo-item {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding: 12px !important;
      }

      .page-28ta__faq-question {
        font-size: 1.1em;
        padding: 12px 15px;
      }

      .page-28ta__faq-question h3 {
        font-size: 1.1em;
      }

      .page-28ta__faq-answer {
        padding: 0 15px;
      }

      .page-28ta__faq-item.active .page-28ta__faq-answer {
        padding: 15px !important;
      }

      .page-28ta__cta-title {
        font-size: 1.8em;
      }

      .page-28ta__cta-description {
        font-size: 1em;
      }
    }

    @media (max-width: 480px) {
      .page-28ta__hero-title {
        font-size: 2em;
      }
      .page-28ta__hero-description {
        font-size: 0.95em;
      }
      .page-28ta__button {
        font-size: 0.9em;
        padding: 8px 10px;
      }
    }