/* Tổng quan */
    :root {
      --page-taik9cc__primary-color: #e44d26; /* Màu cam đậm */
      --page-taik9cc__secondary-color: #f7a000; /* Màu vàng cam */
      --page-taik9cc__dark-background: #1a1a1a; /* Nền tối */
      --page-taik9cc__light-background: #f0f2f5; /* Nền sáng */
      --page-taik9cc__text-color: #333; /* Màu chữ chính */
      --page-taik9cc__white-text: #ffffff; /* Màu chữ trắng */
      --page-taik9cc__border-color: #ddd; /* Màu viền */
      --page-taik9cc__shadow: rgba(0, 0, 0, 0.1); /* Màu đổ bóng */
    }

    .page-taik9cc {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-taik9cc__text-color);
      background-color: var(--page-taik9cc__light-background);
      overflow-x: hidden; /* Ngăn chặn tràn ngang */
    }

    /* Đảm bảo nội dung không bị che bởi header cố định */
    .page-taik9cc__hero-section {
      padding-top: 10px; /* Thêm khoảng đệm cho hero section */
    }
    @media (max-width: 768px) {
      .page-taik9cc__hero-section {
        padding-top: 10px !important;
      }
    }

    /* Tiêu đề chung */
    .page-taik9cc h1, .page-taik9cc h2, .page-taik9cc h3 {
      color: var(--page-taik9cc__dark-background);
      margin-bottom: 15px;
      text-align: center;
    }

    .page-taik9cc h1 {
      font-size: 2.5em;
      color: var(--page-taik9cc__primary-color);
    }
    .page-taik9cc h2 {
      font-size: 2em;
      color: var(--page-taik9cc__secondary-color);
      margin-top: 40px;
    }
    .page-taik9cc h3 {
      font-size: 1.5em;
      color: var(--page-taik9cc__dark-background);
    }

    /* Các phần chính */
    .page-taik9cc__section {
      padding: 40px 20px;
      margin-bottom: 20px;
      background-color: var(--page-taik9cc__white-text);
      border-radius: 8px;
      box-shadow: 0 2px 5px var(--page-taik9cc__shadow);
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Hero Section */
    .page-taik9cc__hero-section {
      text-align: center;
      background: linear-gradient(135deg, var(--page-taik9cc__primary-color), var(--page-taik9cc__secondary-color));
      color: var(--page-taik9cc__white-text);
      padding: 60px 20px;
      border-radius: 0;
      box-shadow: none;
      margin-bottom: 0;
    }
    .page-taik9cc__hero-image {
      max-width: 100%;
      height: auto;
      border-radius: 8px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      margin-bottom: 30px;
    }
    .page-taik9cc__hero-title {
      font-size: 3em;
      margin-bottom: 15px;
      color: var(--page-taik9cc__white-text);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    }
    .page-taik9cc__hero-subtitle {
      font-size: 1.2em;
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }
    .page-taik9cc__primary-button {
      display: inline-block;
      background-color: var(--page-taik9cc__secondary-color);
      color: var(--page-taik9cc__white-text);
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    }
    .page-taik9cc__primary-button:hover {
      background-color: #e08c00;
      transform: translateY(-2px);
    }

    /* Nút nổi (Floating button) */
    .page-taik9cc__floating-button {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      background-color: #4CAF50; /* Màu xanh lá nổi bật */
      color: var(--page-taik9cc__white-text);
      padding: 12px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.2em;
      z-index: 1000;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      display: flex;
      align-items: center;
      gap: 10px;
      transition: background-color 0.3s ease, transform 0.2s ease;
      white-space: nowrap; /* Ngăn không cho chữ xuống dòng */
    }
    .page-taik9cc__floating-button:hover {
      background-color: #45a049;
      transform: translateX(-50%) translateY(-3px);
    }
    .page-taik9cc__floating-button-icon {
      font-size: 1.5em;
      line-height: 1;
    }
    @media (max-width: 768px) {
      .page-taik9cc__floating-button {
        bottom: 15px;
        padding: 10px 20px;
        font-size: 1em;
        width: calc(100% - 40px); /* Đảm bảo nút chiếm gần hết chiều rộng trên di động */
        box-sizing: border-box;
        justify-content: center;
      }
    }


    /* Danh sách lợi ích/tính năng */
    .page-taik9cc__feature-list {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      justify-content: center;
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .page-taik9cc__feature-item {
      background-color: var(--page-taik9cc__light-background);
      padding: 25px;
      border-radius: 8px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
      text-align: center;
      flex: 1 1 calc(33% - 40px); /* 3 cột trên desktop */
      min-width: 280px;
      box-sizing: border-box;
      transition: transform 0.3s ease;
    }
    .page-taik9cc__feature-item:hover {
      transform: translateY(-5px);
    }
    .page-taik9cc__feature-item h3 {
      color: var(--page-taik9cc__primary-color);
      margin-top: 15px;
      margin-bottom: 10px;
    }
    .page-taik9cc__feature-icon {
      font-size: 3em;
      color: var(--page-taik9cc__secondary-color);
    }

    /* Hướng dẫn từng bước */
    .page-taik9cc__steps-list {
      counter-reset: step-counter;
      list-style: none;
      padding: 0;
      margin: 0;
      display: flex;
      flex-direction: column;
      gap: 25px;
    }
    .page-taik9cc__step-item {
      background-color: var(--page-taik9cc__white-text);
      padding: 25px 30px;
      border-radius: 8px;
      box-shadow: 0 2px 5px var(--page-taik9cc__shadow);
      display: flex;
      align-items: flex-start;
      gap: 20px;
    }
    .page-taik9cc__step-number {
      counter-increment: step-counter;
      font-size: 2em;
      font-weight: bold;
      color: var(--page-taik9cc__primary-color);
      flex-shrink: 0;
      width: 40px;
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      border: 2px solid var(--page-taik9cc__primary-color);
      border-radius: 50%;
    }
    .page-taik9cc__step-content h3 {
      margin-top: 0;
      margin-bottom: 10px;
      text-align: left;
    }

    /* Hiển thị trò chơi */
    .page-taik9cc__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 25px;
      padding: 0;
      list-style: none;
      margin: 0;
    }
    .page-taik9cc__game-card {
      background-color: var(--page-taik9cc__light-background);
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 5px var(--page-taik9cc__shadow);
      text-align: center;
      transition: transform 0.3s ease;
    }
    .page-taik9cc__game-card:hover {
      transform: translateY(-5px);
    }
    .page-taik9cc__game-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
    }
    .page-taik9cc__game-info {
      padding: 20px;
    }
    .page-taik9cc__game-info h3 {
      margin-top: 0;
      color: var(--page-taik9cc__dark-background);
    }
    .page-taik9cc__game-info p {
      font-size: 0.9em;
      color: #666;
    }

    /* Phần FAQ */
    .page-taik9cc__faq-section {
      background-color: var(--page-taik9cc__white-text);
      padding: 40px 20px;
      border-radius: 8px;
      box-shadow: 0 2px 5px var(--page-taik9cc__shadow);
      max-width: 900px;
      margin-left: auto;
      margin-right: auto;
    }
    .page-taik9cc__faq-item {
      border-bottom: 1px solid var(--page-taik9cc__border-color);
      margin-bottom: 10px;
    }
    .page-taik9cc__faq-item:last-child {
      border-bottom: none;
      margin-bottom: 0;
    }
    .page-taik9cc__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px;
      cursor: pointer;
      background-color: var(--page-taik9cc__light-background);
      border-radius: 5px;
      margin-bottom: 5px;
      transition: background-color 0.3s ease;
    }
    .page-taik9cc__faq-question:hover {
      background-color: #e9ecef;
    }
    .page-taik9cc__faq-question h3 {
      margin: 0;
      font-size: 1.1em;
      color: var(--page-taik9cc__dark-background);
      flex-grow: 1;
      text-align: left;
      pointer-events: none; /* Ngăn chặn h3 chặn sự kiện click */
    }
    .page-taik9cc__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      color: var(--page-taik9cc__primary-color);
      margin-left: 15px;
      transition: transform 0.3s ease;
      pointer-events: none; /* Ngăn chặn toggle icon chặn sự kiện click */
    }
    .page-taik9cc__faq-item.active .page-taik9cc__faq-toggle {
      transform: rotate(45deg); /* Xoay dấu + thành X */
    }
    .page-taik9cc__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 15px;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      background-color: #f8f9fa;
      border-radius: 0 0 5px 5px;
      opacity: 0;
      color: var(--page-taik9cc__text-color);
    }
    .page-taik9cc__faq-item.active .page-taik9cc__faq-answer {
      max-height: 2000px !important; /* Đủ lớn để chứa mọi nội dung */
      padding: 20px 15px !important;
      opacity: 1;
    }

    /* Responsive cho di động */
    @media (max-width: 768px) {
      .page-taik9cc h1 {
        font-size: 2em;
      }
      .page-taik9cc h2 {
        font-size: 1.6em;
      }
      .page-taik9cc h3 {
        font-size: 1.3em;
      }
      .page-taik9cc__section {
        padding: 20px 15px;
      }
      .page-taik9cc__hero-title {
        font-size: 2.2em;
      }
      .page-taik9cc__hero-subtitle {
        font-size: 1em;
      }
      .page-taik9cc__primary-button {
        padding: 12px 25px;
        font-size: 1em;
      }

      /* Danh sách lợi ích/tính năng - di động */
      .page-taik9cc__feature-list {
        flex-direction: column;
        gap: 15px;
      }
      .page-taik9cc__feature-item {
        flex: 1 1 100% !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding: 20px;
      }

      /* Hướng dẫn từng bước - di động */
      .page-taik9cc__step-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 20px;
      }
      .page-taik9cc__step-content h3 {
        text-align: center;
      }
      .page-taik9cc__step-number {
        margin-bottom: 10px;
      }

      /* Hiển thị trò chơi - di động */
      .page-taik9cc__game-grid {
        grid-template-columns: 1fr;
        gap: 15px;
      }
      .page-taik9cc__game-card {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }
      .page-taik9cc__game-image {
        height: 180px;
      }

      /* FAQ - di động */
      .page-taik9cc__faq-question {
        padding: 12px;
      }
      .page-taik9cc__faq-question h3 {
        font-size: 1em;
      }
      .page-taik9cc__faq-toggle {
        font-size: 1.3em;
      }
      .page-taik9cc__faq-answer {
        padding: 15px !important;
      }
    }

    /* Ensure images are responsive */
    .page-taik9cc img {
      max-width: 100%;
      height: auto;
      display: block; /* Remove extra space below images */
      margin-left: auto;
      margin-right: auto;
    }
    .page-taik9cc__image-container {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      margin-bottom: 20px;
    }
    @media (max-width: 768px) {
      .page-taik9cc img {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }
      .page-taik9cc__image-container {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
      }
    }

    /* Text alignment */
    .page-taik9cc__text-center {
      text-align: center;
    }
    .page-taik9cc__text-left {
      text-align: left;
    }
    .page-taik9cc__text-right {
      text-align: right;
    }