/* Tổng thể */
    .page-sin88bet {
      font-family: 'Arial', sans-serif;
      color: #333;
      line-height: 1.6;
      background-color: #f8f8f8;
      padding: 0;
      margin: 0;
    }

    .page-sin88bet__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
      box-sizing: border-box;
    }

    .page-sin88bet__section {
      background-color: #fff;
      border-radius: 10px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
      margin-bottom: 30px;
      padding: 30px;
      text-align: center;
    }

    .page-sin88bet__section-title {
      font-size: 2.5em;
      color: #0056b3; /* Dark blue for titles */
      margin-bottom: 20px;
      font-weight: bold;
      text-transform: uppercase;
    }

    .page-sin88bet__section-subtitle {
      font-size: 1.2em;
      color: #555;
      margin-bottom: 30px;
    }

    /* Hero Section */
    .page-sin88bet__hero-section {
      position: relative;
      text-align: center;
      color: #fff;
      padding-top: 120px; /* Essential for fixed header */
      margin-bottom: 30px;
      overflow: hidden;
      border-radius: 0 0 15px 15px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    }

    .page-sin88bet__hero-image-wrapper {
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        box-sizing: border-box;
    }

    .page-sin88bet__hero-image {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
      min-height: 300px; /* Ensure image is not too small */
    }

    .page-sin88bet__hero-content {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      z-index: 2;
      background-color: rgba(0, 0, 0, 0.6);
      padding: 25px 40px;
      border-radius: 10px;
      max-width: 90%;
      box-sizing: border-box;
    }

    .page-sin88bet__hero-title {
      font-size: 3em;
      margin-bottom: 15px;
      color: #ffc107; /* Gold for main title */
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    }

    .page-sin88bet__hero-description {
      font-size: 1.2em;
      margin-bottom: 25px;
      color: #e0e0e0;
    }

    .page-sin88bet__hero-buttons {
      display: flex;
      justify-content: center;
      gap: 20px;
    }

    .page-sin88bet__btn {
      display: inline-block;
      padding: 15px 30px;
      background-color: #007bff; /* Blue for buttons */
      color: #fff;
      text-decoration: none;
      border-radius: 50px;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
    }

    .page-sin88bet__btn:hover {
      background-color: #0056b3;
      transform: translateY(-2px);
    }

    .page-sin88bet__btn--secondary {
      background-color: #28a745; /* Green for secondary button */
    }

    .page-sin88bet__btn--secondary:hover {
      background-color: #218838;
    }

    /* Floating Login Button */
    .page-sin88bet__floating-login-btn {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: #dc3545; /* Red for promotion */
      color: #fff;
      padding: 15px 25px;
      border-radius: 50px;
      font-size: 1.1em;
      font-weight: bold;
      text-align: center;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
      z-index: 100;
      animation: page-sin88bet__pulse 2s infinite;
      text-decoration: none;
      cursor: pointer;
      border: none;
    }

    .page-sin88bet__floating-login-btn:hover {
      background-color: #c82333;
    }

    @keyframes page-sin88bet__pulse {
      0% {
        transform: scale(1);
      }
      50% {
        transform: scale(1.05);
      }
      100% {
        transform: scale(1);
      }
    }

    /* Content Grid */
    .page-sin88bet__game-grid,
    .page-sin88bet__provider-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-sin88bet__game-card,
    .page-sin88bet__provider-card {
      background-color: #fefefe;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
      padding-bottom: 20px;
    }

    .page-sin88bet__game-card:hover,
    .page-sin88bet__provider-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    }

    .page-sin88bet__game-image-wrapper,
    .page-sin88bet__provider-image-wrapper {
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        box-sizing: border-box;
    }

    .page-sin88bet__game-image,
    .page-sin88bet__provider-image {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
      min-height: 200px; /* Minimum size for content images */
      border-bottom: 1px solid #eee;
    }

    .page-sin88bet__game-card-title,
    .page-sin88bet__provider-card-title {
      font-size: 1.4em;
      margin: 15px 0 10px;
      color: #0056b3;
      padding: 0 15px;
    }

    .page-sin88bet__game-card-title a,
    .page-sin88bet__provider-card-title a {
      text-decoration: none;
      color: inherit;
      transition: color 0.3s ease;
    }

    .page-sin88bet__game-card-title a:hover,
    .page-sin88bet__provider-card-title a:hover {
      color: #007bff;
    }

    .page-sin88bet__game-card-description {
      font-size: 0.95em;
      color: #666;
      padding: 0 15px;
    }

    /* Promotions */
    .page-sin88bet__promo-list {
      list-style: none;
      padding: 0;
      margin-top: 30px;
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .page-sin88bet__promo-item {
      background-color: #e9f7ff; /* Light blue background */
      border-left: 5px solid #007bff;
      padding: 20px;
      border-radius: 8px;
      text-align: left;
      transition: background-color 0.3s ease;
    }

    .page-sin88bet__promo-item:hover {
      background-color: #d0efff;
    }

    .page-sin88bet__promo-title {
      font-size: 1.5em;
      color: #0056b3;
      margin-bottom: 10px;
    }

    .page-sin88bet__promo-description {
      color: #444;
    }

    /* Guide Section */
    .page-sin88bet__guide-steps {
      list-style: none;
      padding: 0;
      margin-top: 30px;
      display: flex;
      flex-direction: column;
      gap: 25px;
    }

    .page-sin88bet__guide-step {
      display: flex;
      align-items: flex-start;
      text-align: left;
      background-color: #fefefe;
      padding: 20px;
      border-radius: 8px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    }

    .page-sin88bet__step-number {
      background-color: #007bff;
      color: #fff;
      border-radius: 50%;
      width: 40px;
      height: 40px;
      display: flex;
      justify-content: center;
      align-items: center;
      font-size: 1.5em;
      font-weight: bold;
      flex-shrink: 0;
      margin-right: 15px;
    }

    .page-sin88bet__step-content {
      flex-grow: 1;
    }

    .page-sin88bet__step-title {
      font-size: 1.3em;
      color: #0056b3;
      margin-bottom: 5px;
    }

    .page-sin88bet__step-description {
      color: #555;
    }

    /* FAQ Section */
    .page-sin88bet__faq-list {
      margin-top: 30px;
      text-align: left;
    }

    .page-sin88bet__faq-item {
      background-color: #fefefe;
      border: 1px solid #eee;
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
    }

    .page-sin88bet__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      font-size: 1.2em;
      color: #333;
      cursor: pointer;
      user-select: none;
      background-color: #f0f0f0;
      transition: background-color 0.3s ease;
    }

    .page-sin88bet__faq-question:hover {
      background-color: #e0e0e0;
    }

    .page-sin88bet__faq-question h3 {
      margin: 0;
      font-size: 1.2em;
      color: #0056b3;
      pointer-events: none; /* Prevent h3 from blocking click */
    }

    .page-sin88bet__faq-toggle {
      font-size: 1.8em;
      font-weight: bold;
      color: #007bff;
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle from blocking click */
    }

    .page-sin88bet__faq-item.active .page-sin88bet__faq-toggle {
      transform: rotate(45deg); /* Change '+' to 'x' or '-' */
      color: #dc3545;
    }

    .page-sin88bet__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      background-color: #fff;
      color: #555;
    }

    .page-sin88bet__faq-item.active .page-sin88bet__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px 25px !important;
      opacity: 1;
    }

    /* Contact Section */
    .page-sin88bet__contact-info {
      margin-top: 30px;
      display: flex;
      flex-direction: column;
      gap: 15px;
      font-size: 1.1em;
      color: #555;
    }

    .page-sin88bet__contact-item {
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .page-sin88bet__contact-item strong {
      color: #0056b3;
      margin-right: 10px;
    }

    .page-sin88bet__social-links {
      margin-top: 25px;
      display: flex;
      justify-content: center;
      gap: 20px;
    }

    .page-sin88bet__social-link {
      display: inline-block;
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background-color: #007bff;
      color: #fff;
      display: flex;
      justify-content: center;
      align-items: center;
      font-size: 1.8em;
      text-decoration: none;
      transition: background-color 0.3s ease, transform 0.2s ease;
    }

    .page-sin88bet__social-link:hover {
      background-color: #0056b3;
      transform: translateY(-3px);
    }

    /* Mobile Responsiveness */
    @media (max-width: 768px) {
      .page-sin88bet__container {
        padding: 15px;
      }

      .page-sin88bet__section {
        padding: 20px;
        margin-bottom: 20px;
      }

      .page-sin88bet__section-title {
        font-size: 2em;
      }

      .page-sin88bet__hero-section {
        padding-top: 100px; /* Adjust for mobile fixed header */
        margin-bottom: 20px;
      }

      .page-sin88bet__hero-content {
        padding: 20px 25px;
      }

      .page-sin88bet__hero-title {
        font-size: 2em;
      }

      .page-sin88bet__hero-description {
        font-size: 1em;
      }

      .page-sin88bet__hero-buttons {
        flex-direction: column;
        gap: 15px;
      }

      .page-sin88bet__btn {
        padding: 12px 25px;
        font-size: 1em;
      }

      .page-sin88bet__floating-login-btn {
        bottom: 15px;
        right: 15px;
        padding: 12px 20px;
        font-size: 1em;
      }

      .page-sin88bet__game-grid,
      .page-sin88bet__provider-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 15px;
      }

      .page-sin88bet__game-card-title,
      .page-sin88bet__provider-card-title {
        font-size: 1.2em;
      }

      .page-sin88bet__promo-item,
      .page-sin88bet__guide-step {
        padding: 15px;
      }

      .page-sin88bet__promo-title {
        font-size: 1.3em;
      }

      .page-sin88bet__step-number {
        width: 35px;
        height: 35px;
        font-size: 1.2em;
        margin-right: 10px;
      }

      .page-sin88bet__step-title {
        font-size: 1.1em;
      }

      .page-sin88bet__faq-question {
        padding: 15px 20px;
        font-size: 1.1em;
      }

      .page-sin88bet__faq-question h3 {
        font-size: 1.1em;
      }

      .page-sin88bet__faq-answer {
        padding: 0 20px;
      }

      .page-sin88bet__faq-item.active .page-sin88bet__faq-answer {
        padding: 15px 20px !important;
      }

      .page-sin88bet__contact-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
      }
      .page-sin88bet__contact-item strong {
        margin-right: 0;
        margin-bottom: 5px;
      }

      .page-sin88bet__social-link {
        width: 45px;
        height: 45px;
        font-size: 1.5em;
      }

      /* Image responsive styles */
      .page-sin88bet__hero-image,
      .page-sin88bet__game-image,
      .page-sin88bet__provider-image {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-sin88bet__hero-image-wrapper,
      .page-sin88bet__game-image-wrapper,
      .page-sin88bet__provider-image-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }