/* Tổng quan */
    .page-sx666 {
      font-family: 'Arial', sans-serif;
      color: #FFFFFF; /* Chữ trắng */
      background-color: #000000; /* Nền đen */
      line-height: 1.6;
      overflow-x: hidden;
    }

    .page-sx666__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    .page-sx666__section {
      padding: 60px 0;
      text-align: center;
    }

    .page-sx666__section-title {
      font-size: 2.5em;
      color: #FFD700; /* Chữ vàng */
      margin-bottom: 30px;
      font-weight: bold;
      text-transform: uppercase;
    }

    .page-sx666__section-description {
      font-size: 1.1em;
      margin-bottom: 40px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
      color: #E0E0E0;
    }

    /* Nút CTA chung */
    .page-sx666__button {
      display: inline-block;
      background-color: #FFD700; /* Nút vàng */
      color: #000000; /* Chữ đen */
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.3s ease;
      border: none;
      cursor: pointer;
      text-align: center;
    }

    .page-sx666__button:hover {
      background-color: #FFA500; /* Vàng cam khi hover */
      transform: translateY(-3px);
    }

    /* Hero Section */
    .page-sx666__hero-section {
      position: relative;
      padding-top: 160px; /* An toàn cho thanh điều hướng cố định */
      padding-bottom: 40px;
      text-align: center;
      background-color: #1a1a1a;
    }

    .page-sx666__hero-image {
      max-width: 100%;
      height: auto;
      display: block;
      margin: 0 auto;
      border-radius: 10px;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
    }

    .page-sx666__hero-content {
      position: relative;
      z-index: 1;
      padding: 20px 15px;
      margin-top: 20px;
    }

    .page-sx666__hero-title {
      font-size: 3em;
      color: #FFD700;
      margin-bottom: 15px;
      line-height: 1.2;
    }

    .page-sx666__hero-subtitle {
      font-size: 1.4em;
      color: #FFFFFF;
      margin-bottom: 30px;
      max-width: 900px;
      margin-left: auto;
      margin-right: auto;
    }

    /* About Section */
    .page-sx666__about-section {
      background-color: #0d0d0d;
    }

    .page-sx666__about-content {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 30px;
    }

    .page-sx666__about-text {
      text-align: left;
      font-size: 1.1em;
      color: #E0E0E0;
      max-width: 700px;
    }

    .page-sx666__about-image {
      max-width: 100%;
      height: auto;
      border-radius: 10px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    }

    /* Game Categories Section */
    .page-sx666__games-section {
      background-color: #000000;
      padding-bottom: 80px;
    }

    .page-sx666__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 40px;
    }

    .page-sx666__game-item {
      background-color: #1a1a1a;
      border-radius: 12px;
      overflow: hidden;
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.4);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
      padding-bottom: 20px;
    }

    .page-sx666__game-item:hover {
      transform: translateY(-8px);
      box-shadow: 0 12px 25px rgba(0, 0, 0, 0.6);
    }

    .page-sx666__game-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
      border-bottom: 2px solid #FFD700;
    }

    .page-sx666__game-title {
      font-size: 1.5em;
      color: #FFD700;
      margin: 20px 10px 10px;
      font-weight: bold;
    }

    .page-sx666__game-description {
      font-size: 0.95em;
      color: #CCCCCC;
      padding: 0 15px;
      margin-bottom: 20px;
    }

    .page-sx666__game-link {
      display: inline-block;
      background-color: #FFD700;
      color: #000000;
      padding: 10px 20px;
      border-radius: 30px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
    }

    .page-sx666__game-link:hover {
      background-color: #FFA500;
    }

    /* Promotions Section */
    .page-sx666__promotions-section {
      background-color: #0d0d0d;
    }

    .page-sx666__promo-list {
      list-style: none;
      padding: 0;
      margin: 40px auto 0;
      max-width: 900px;
    }

    .page-sx666__promo-item {
      background-color: #1a1a1a;
      border-left: 5px solid #FFD700;
      padding: 25px;
      margin-bottom: 20px;
      border-radius: 8px;
      text-align: left;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .page-sx666__promo-icon {
      font-size: 2.5em;
      color: #FFD700;
      flex-shrink: 0;
    }

    .page-sx666__promo-content h3 {
      font-size: 1.6em;
      color: #FFD700;
      margin-top: 0;
      margin-bottom: 10px;
    }

    .page-sx666__promo-content p {
      color: #E0E0E0;
      margin-bottom: 15px;
    }

    .page-sx666__promo-image {
      max-width: 100%;
      height: auto;
      border-radius: 8px;
      margin-top: 20px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    }

    /* Why Choose Section */
    .page-sx666__why-choose-section {
      background-color: #000000;
    }

    .page-sx666__feature-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-sx666__feature-item {
      background-color: #1a1a1a;
      padding: 30px;
      border-radius: 12px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4);
      text-align: left;
      transition: background-color 0.3s ease;
    }

    .page-sx666__feature-item:hover {
      background-color: #2a2a2a;
    }

    .page-sx666__feature-icon {
      font-size: 3em;
      color: #FFD700;
      margin-bottom: 15px;
      display: block;
      text-align: center;
    }

    .page-sx666__feature-title {
      font-size: 1.8em;
      color: #FFD700;
      margin-bottom: 10px;
      text-align: center;
    }

    .page-sx666__feature-description {
      color: #E0E0E0;
      font-size: 1em;
    }

    /* How To Get Started Section */
    .page-sx666__guide-section {
      background-color: #0d0d0d;
    }

    .page-sx666__guide-steps {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 30px;
      margin-top: 40px;
    }

    .page-sx666__guide-step {
      background-color: #1a1a1a;
      padding: 30px;
      border-radius: 12px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4);
      text-align: center;
      width: 100%;
      max-width: 300px;
      box-sizing: border-box;
      transition: transform 0.3s ease;
    }

    .page-sx666__guide-step:hover {
      transform: translateY(-5px);
    }

    .page-sx666__guide-step-number {
      font-size: 2.5em;
      color: #FFD700;
      font-weight: bold;
      margin-bottom: 15px;
      display: block;
    }

    .page-sx666__guide-step-title {
      font-size: 1.5em;
      color: #FFD700;
      margin-bottom: 15px;
    }

    .page-sx666__guide-step-description {
      color: #E0E0E0;
      margin-bottom: 20px;
    }

    .page-sx666__guide-image {
      max-width: 100%;
      height: auto;
      border-radius: 8px;
      margin-bottom: 20px;
      box-shadow: 0 3px 8px rgba(0, 0, 0, 0.2);
    }

    /* FAQ Section */
    .page-sx666__faq-section {
      background-color: #000000;
      padding-bottom: 80px;
    }

    .page-sx666__faq-list {
      max-width: 800px;
      margin: 40px auto 0;
      text-align: left;
    }

    .page-sx666__faq-item {
      background-color: #1a1a1a;
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    }

    .page-sx666__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      background-color: #2a2a2a;
      cursor: pointer;
      user-select: none;
      transition: background-color 0.3s ease;
    }

    .page-sx666__faq-question:hover {
      background-color: #3a3a3a;
    }

    .page-sx666__faq-question h3 {
      margin: 0;
      font-size: 1.3em;
      color: #FFD700;
      flex-grow: 1;
      pointer-events: none; /* Ngăn chặn h3 chặn sự kiện click */
    }

    .page-sx666__faq-toggle {
      font-size: 1.8em;
      color: #FFD700;
      margin-left: 15px;
      transition: transform 0.3s ease;
      pointer-events: none; /* Ngăn chặn toggle chặn sự kiện click */
    }

    .page-sx666__faq-item.active .page-sx666__faq-toggle {
      transform: rotate(45deg);
    }

    .page-sx666__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      color: #E0E0E0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      box-sizing: border-box;
    }

    .page-sx666__faq-item.active .page-sx666__faq-answer {
      max-height: 2000px !important; /* Đủ lớn để chứa mọi nội dung */
      padding: 20px 25px !important;
      opacity: 1;
    }

    .page-sx666__faq-answer p {
      margin-bottom: 15px;
    }

    /* CTA Section cuối */
    .page-sx666__cta-section {
      background-color: #1a1a1a;
      padding: 80px 0;
    }

    .page-sx666__cta-image {
      max-width: 100%;
      height: auto;
      border-radius: 10px;
      margin-bottom: 30px;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
    }

    /* Nút Đăng Nhập Nổi */
    .page-sx666__floating-button {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 1000;
      background-color: #FFD700;
      color: #000000;
      padding: 15px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.2em;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
      animation: pulse 2s infinite;
      display: flex;
      align-items: center;
      gap: 10px;
      white-space: nowrap;
    }

    .page-sx666__floating-button:hover {
      background-color: #FFA500;
    }

    @keyframes pulse {
      0% { transform: translateX(-50%) scale(1); }
      50% { transform: translateX(-50%) scale(1.03); }
      100% { transform: translateX(-50%) scale(1); }
    }

    /* Responsive */
    @media (max-width: 768px) {
      .page-sx666__section {
        padding: 40px 0;
      }

      .page-sx666__section-title {
        font-size: 2em;
        margin-bottom: 20px;
      }

      .page-sx666__hero-section {
        padding-top: 100px; /* Điều chỉnh cho di động */
        padding-bottom: 30px;
      }

      .page-sx666__hero-title {
        font-size: 2.2em;
      }

      .page-sx666__hero-subtitle {
        font-size: 1.1em;
      }

      .page-sx666__about-content {
        flex-direction: column;
      }

      .page-sx666__game-grid {
        grid-template-columns: 1fr;
      }

      .page-sx666__promo-item {
        flex-direction: column;
        text-align: center;
        padding: 20px;
      }

      .page-sx666__promo-icon {
        margin-bottom: 15px;
      }

      .page-sx666__feature-grid {
        grid-template-columns: 1fr;
      }

      .page-sx666__guide-steps {
        flex-direction: column;
        align-items: center;
      }

      .page-sx666__guide-step {
        max-width: 90%;
      }

      .page-sx666__faq-question {
        padding: 15px 20px;
      }

      .page-sx666__faq-question h3 {
        font-size: 1.1em;
      }

      .page-sx666__faq-answer {
        padding: 0 20px;
      }

      .page-sx666__faq-item.active .page-sx666__faq-answer {
        padding: 15px 20px !important;
      }

      .page-sx666__floating-button {
        font-size: 1em;
        padding: 12px 20px;
      }

      /* Image responsive adjustments */
      .page-sx666__hero-image,
      .page-sx666__about-image,
      .page-sx666__game-image,
      .page-sx666__promo-image,
      .page-sx666__guide-image,
      .page-sx666__cta-image {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }
      .page-sx666__hero-image-container,
      .page-sx666__about-image-container,
      .page-sx666__game-image-container,
      .page-sx666__promo-image-container,
      .page-sx666__guide-image-container,
      .page-sx666__cta-image-container {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }

    @media (max-width: 480px) {
      .page-sx666__hero-title {
        font-size: 1.8em;
      }

      .page-sx666__section-title {
        font-size: 1.8em;
      }

      .page-sx666__floating-button {
        font-size: 0.9em;
        padding: 10px 15px;
      }
    }