:root {
      --primary-color: #e44d26; /* Một màu cam đỏ nổi bật */
      --secondary-color: #ffcc00; /* Màu vàng sáng */
      --dark-bg: #1a1a1a; /* Nền tối */
      --light-text: #ffffff; /* Chữ trắng */
      --gray-text: #cccccc; /* Chữ xám nhạt */
      --border-color: #333333; /* Màu viền */
      --button-hover-bg: #c0392b; /* Màu nút khi hover */
    }

    body {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      line-height: 1.6;
      color: var(--light-text);
      background-color: var(--dark-bg);
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }

    .page-chuc-168 {
      max-width: 1200px;
      margin: 0 auto;
      padding: 10px 15px 80px 15px; /* Thêm padding dưới cho nút nổi */
      box-sizing: border-box;
      position: relative;
    }

    .page-chuc-168__hero-section {
      text-align: center;
      padding: 60px 0 40px 0;
      background-color: #222;
      border-radius: 10px;
      margin-bottom: 30px;
      position: relative;
      overflow: hidden;
      padding-top: 10px; /* Nhỏ hơn để body đã có offset */
    }

    .page-chuc-168__hero-image {
      width: 100%;
      height: auto;
      max-height: 400px;
      object-fit: cover;
      border-radius: 10px;
      margin-bottom: 20px;
      opacity: 0.8;
    }

    .page-chuc-168__hero-content h1 {
      font-size: 2.8em;
      color: var(--secondary-color);
      margin-bottom: 15px;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    }

    .page-chuc-168__hero-content p {
      font-size: 1.2em;
      color: var(--gray-text);
      max-width: 800px;
      margin: 0 auto 30px auto;
    }

    .page-chuc-168__cta-buttons {
      display: flex;
      justify-content: center;
      gap: 20px;
    }

    .page-chuc-168__button {
      background-color: var(--primary-color);
      color: var(--light-text);
      padding: 15px 30px;
      border: none;
      border-radius: 5px;
      font-size: 1.1em;
      font-weight: bold;
      cursor: pointer;
      transition: background-color 0.3s ease, transform 0.2s ease;
      text-decoration: none;
      display: inline-block;
    }

    .page-chuc-168__button:hover {
      background-color: var(--button-hover-bg);
      transform: translateY(-2px);
    }

    .page-chuc-168__section {
      background-color: #222;
      padding: 40px 25px;
      margin-bottom: 30px;
      border-radius: 10px;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    }

    .page-chuc-168__section h2 {
      font-size: 2.2em;
      color: var(--primary-color);
      text-align: center;
      margin-bottom: 30px;
      text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.4);
    }

    .page-chuc-168__section p {
      font-size: 1.1em;
      color: var(--gray-text);
      margin-bottom: 20px;
      text-align: justify;
    }

    .page-chuc-168__features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-chuc-168__feature-item {
      background-color: #2a2a2a;
      padding: 25px;
      border-radius: 8px;
      text-align: center;
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
      transition: transform 0.3s ease;
    }

    .page-chuc-168__feature-item:hover {
      transform: translateY(-5px);
    }

    .page-chuc-168__feature-item img {
      width: 200px; /* Minimum size */
      height: 150px;
      object-fit: contain;
      margin-bottom: 15px;
      border-radius: 5px;
      max-width: 100%;
      height: auto;
      box-sizing: border-box;
    }

    .page-chuc-168__feature-item h3 {
      font-size: 1.4em;
      color: var(--secondary-color);
      margin-bottom: 10px;
    }

    .page-chuc-168__feature-item p {
      font-size: 0.95em;
      color: var(--gray-text);
      text-align: center;
    }

    .page-chuc-168__promotions-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-chuc-168__promotion-card {
      background-color: #2a2a2a;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
      transition: transform 0.3s ease;
    }

    .page-chuc-168__promotion-card:hover {
      transform: translateY(-5px);
    }

    .page-chuc-168__promotion-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      max-width: 100%;
      box-sizing: border-box;
    }

    .page-chuc-168__promotion-content {
      padding: 20px;
    }

    .page-chuc-168__promotion-content h3 {
      font-size: 1.5em;
      color: var(--secondary-color);
      margin-bottom: 10px;
    }

    .page-chuc-168__promotion-content p {
      font-size: 0.95em;
      color: var(--gray-text);
      margin-bottom: 15px;
    }

    .page-chuc-168__register-login-buttons {
      position: fixed;
      bottom: 20px;
      right: 20px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 1000;
    }

    .page-chuc-168__register-login-buttons .page-chuc-168__button {
      padding: 12px 20px;
      font-size: 1em;
      min-width: 120px;
      text-align: center;
    }

    .page-chuc-168__register-button {
      background-color: var(--primary-color);
    }

    .page-chuc-168__login-button {
      background-color: #3498db; /* Một màu xanh khác biệt */
    }

    .page-chuc-168__login-button:hover {
      background-color: #2980b9;
    }

    .page-chuc-168__faq-section {
      padding-bottom: 60px; /* Đảm bảo không bị che bởi nút nổi */
    }

    .page-chuc-168__faq-item {
      background-color: #2a2a2a;
      margin-bottom: 15px;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    }

    .page-chuc-168__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: #333;
      cursor: pointer;
      user-select: none;
      border-bottom: 1px solid var(--border-color);
      transition: background-color 0.3s ease;
    }

    .page-chuc-168__faq-question:hover {
      background-color: #444;
    }

    .page-chuc-168__faq-question h3 {
      font-size: 1.2em;
      color: var(--light-text);
      margin: 0;
      pointer-events: none; /* Prevent h3 from blocking click */
    }

    .page-chuc-168__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      color: var(--secondary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click */
    }

    .page-chuc-168__faq-item.active .page-chuc-168__faq-toggle {
      transform: rotate(45deg); /* Change + to X or - */
    }

    .page-chuc-168__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 0.4s ease;
      color: var(--gray-text);
      font-size: 0.95em;
    }

    .page-chuc-168__faq-item.active .page-chuc-168__faq-answer {
      max-height: 2000px !important; /* Sufficiently large value */
      padding: 20px 20px !important;
      opacity: 1;
    }

    .page-chuc-168__faq-answer p {
      margin: 0;
      padding: 0;
    }

    .page-chuc-168__payment-methods,
    .page-chuc-168__game-providers {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
      margin-top: 30px;
    }

    .page-chuc-168__payment-item,
    .page-chuc-168__provider-item {
      background-color: #2a2a2a;
      padding: 15px 20px;
      border-radius: 8px;
      text-align: center;
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
      transition: transform 0.3s ease;
      min-width: 150px;
      flex: 1 1 auto;
      max-width: 200px; /* Giới hạn chiều rộng cho item */
    }

    .page-chuc-168__payment-item:hover,
    .page-chuc-168__provider-item:hover {
      transform: translateY(-3px);
    }

    .page-chuc-168__payment-item img,
    .page-chuc-168__provider-item img {
      width: 100%;
      height: 80px; /* Cố định chiều cao cho logo */
      object-fit: contain;
      margin-bottom: 10px;
      max-width: 100%;
      box-sizing: border-box;
    }

    .page-chuc-168__payment-item span,
    .page-chuc-168__provider-item span {
      font-size: 1em;
      color: var(--secondary-color);
      font-weight: bold;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-chuc-168 {
        padding: 10px 10px 80px 10px;
      }

      .page-chuc-168__hero-section {
        padding: 40px 0 30px 0;
      }

      .page-chuc-168__hero-content h1 {
        font-size: 2em;
      }

      .page-chuc-168__hero-content p {
        font-size: 1em;
        margin-bottom: 20px;
      }

      .page-chuc-168__cta-buttons {
        flex-direction: column;
        gap: 15px;
      }

      .page-chuc-168__button {
        padding: 12px 25px;
        font-size: 1em;
        width: 80%;
        margin: 0 auto;
      }

      .page-chuc-168__section {
        padding: 30px 15px;
      }

      .page-chuc-168__section h2 {
        font-size: 1.8em;
        margin-bottom: 25px;
      }

      .page-chuc-168__section p {
        font-size: 0.9em;
      }

      .page-chuc-168__features-grid,
      .page-chuc-168__promotions-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .page-chuc-168__feature-item,
      .page-chuc-168__promotion-card {
        width: 100%;
        box-sizing: border-box;
      }

      .page-chuc-168__feature-item img {
        width: 100% !important;
        height: auto !important;
        max-width: 300px !important; /* Giới hạn chiều rộng hình ảnh cho mobile */
      }

      .page-chuc-168__promotion-card img {
        width: 100% !important;
        height: 180px !important;
        max-width: 100% !important;
      }

      .page-chuc-168__register-login-buttons {
        bottom: 15px;
        right: 15px;
        flex-direction: row; /* Nút ngang trên mobile */
        width: calc(100% - 30px);
        justify-content: center;
        gap: 8px;
      }

      .page-chuc-168__register-login-buttons .page-chuc-168__button {
        flex: 1;
        padding: 10px 15px;
        font-size: 0.9em;
        min-width: unset;
      }

      .page-chuc-168__faq-question {
        padding: 12px 15px;
      }

      .page-chuc-168__faq-question h3 {
        font-size: 1.1em;
      }

      .page-chuc-168__faq-answer {
        padding: 0 15px;
        font-size: 0.9em;
      }

      .page-chuc-168__faq-item.active .page-chuc-168__faq-answer {
        padding: 15px 15px !important;
      }

      .page-chuc-168__payment-methods,
      .page-chuc-168__game-providers {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 15px;
      }

      .page-chuc-168__payment-item,
      .page-chuc-168__provider-item {
        max-width: 100%;
        width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding: 10px;
      }
      .page-chuc-168__payment-item img,
      .page-chuc-168__provider-item img {
        width: 100% !important;
        height: 60px !important;
      }
      .page-chuc-168__payment-item span,
      .page-chuc-168__provider-item span {
        font-size: 0.9em;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }
      .page-chuc-168__section ul, .page-chuc-168__section ol {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }
      .page-chuc-168__section ul li, .page-chuc-168__section ol li {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 10px !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }
    }