/* Tổng quan và biến */
    :root {
      --page-f168__primary-color: #FFD700; /* Vàng */
      --page-f168__secondary-color: #FFFFFF; /* Trắng */
      --page-f168__background-color: #000000; /* Đen */
      --page-f168__dark-grey: #1a1a1a;
      --page-f168__text-color-light: #f0f0f0;
      --page-f168__text-color-dark: #333333;
      --page-f168__border-radius: 8px;
      --page-f168__spacing-unit: 20px;
      --page-f168__header-safe-area-desktop: 120px;
      --page-f168__header-safe-area-mobile: 100px;
    }

    /* Các kiểu chung cho trang f 168 */
    .page-f168 {
      font-family: 'Arial', sans-serif;
      background-color: var(--page-f168__background-color);
      color: var(--page-f168__secondary-color);
      line-height: 1.6;
      overflow-x: hidden;
      box-sizing: border-box;
    }

    .page-f168__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 var(--page-f168__spacing-unit);
      box-sizing: border-box;
    }

    .page-f168__section {
      padding: calc(var(--page-f168__spacing-unit) * 2) 0;
      text-align: center;
    }

    .page-f168__section-title {
      color: var(--page-f168__primary-color);
      font-size: 2.5em;
      margin-bottom: var(--page-f168__spacing-unit);
      font-weight: bold;
    }

    .page-f168__section-subtitle {
      color: var(--page-f168__secondary-color);
      font-size: 1.2em;
      margin-bottom: calc(var(--page-f168__spacing-unit) * 2);
    }

    /* Hình ảnh chung */
    .page-f168 img {
      max-width: 100%;
      height: auto;
      display: block;
      margin: 0 auto;
      border-radius: var(--page-f168__border-radius);
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
      object-fit: cover;
    }

    /* Nút chung */
    .page-f168__button {
      display: inline-block;
      background-color: var(--page-f168__primary-color);
      color: var(--page-f168__background-color);
      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;
    }

    .page-f168__button:hover {
      background-color: #e6c200;
      transform: translateY(-3px);
    }

    /* Hero Section */
    .page-f168__hero-section {
      background-color: var(--page-f168__dark-grey);
      padding-top: var(--page-f168__header-safe-area-desktop); /* Khoảng cách an toàn cho header cố định */
      position: relative;
      text-align: center;
      overflow: hidden;
    }

    .page-f168__hero-image-wrapper {
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        box-sizing: border-box;
        margin-bottom: var(--page-f168__spacing-unit);
    }

    .page-f168__hero-image {
      width: 100%;
      height: auto;
      max-height: 500px; /* Giới hạn chiều cao cho hình ảnh hero */
      object-fit: contain; /* Đảm bảo hình ảnh không bị biến dạng */
      display: block;
      margin: 0 auto;
      border-radius: 0; /* Hero image thường không có border-radius */
      box-shadow: none;
    }

    .page-f168__hero-content {
      padding: var(--page-f168__spacing-unit) 0 calc(var(--page-f168__spacing-unit) * 2);
      max-width: 800px;
      margin: 0 auto;
      color: var(--page-f168__secondary-color);
    }

    .page-f168__hero-title {
      font-size: 3em;
      color: var(--page-f168__primary-color);
      margin-bottom: 10px;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    }

    .page-f168__hero-description {
      font-size: 1.2em;
      margin-bottom: var(--page-f168__spacing-unit);
    }

    /* Floating Login Button (within main, fixed to bottom) */
    .page-f168__floating-button-wrapper {
      position: sticky; /* Sử dụng sticky để nó "nổi" trong luồng nội dung */
      bottom: var(--page-f168__spacing-unit);
      width: 100%;
      text-align: center;
      z-index: 100; /* Đảm bảo nút nổi lên trên các nội dung khác */
      margin-top: var(--page-f168__spacing-unit); /* Đảm bảo không bị dính vào phần trên */
      padding: 0 var(--page-f168__spacing-unit);
      box-sizing: border-box;
    }

    .page-f168__floating-button {
      width: 100%;
      max-width: 350px;
      animation: page-f168__pulse 2s infinite;
      box-shadow: 0 5px 20px rgba(255, 215, 0, 0.5);
    }

    @keyframes page-f168__pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }

    /* About Section */
    .page-f168__about-content {
      max-width: 900px;
      margin: 0 auto;
      text-align: left;
    }

    .page-f168__about-content p {
      margin-bottom: var(--page-f168__spacing-unit);
      color: var(--page-f168__text-color-light);
    }

    /* Game Categories */
    .page-f168__games-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: var(--page-f168__spacing-unit);
      margin-top: calc(var(--page-f168__spacing-unit) * 2);
    }

    .page-f168__game-card {
      background-color: var(--page-f168__dark-grey);
      border-radius: var(--page-f168__border-radius);
      overflow: hidden;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
      padding-bottom: var(--page-f168__spacing-unit);
    }

    .page-f168__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
    }

    .page-f168__game-card-image-wrapper {
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        box-sizing: border-box;
        margin-bottom: var(--page-f168__spacing-unit);
    }

    .page-f168__game-card-image {
      width: 100%;
      height: 200px; /* Chiều cao cố định cho ảnh game */
      object-fit: cover;
      border-radius: var(--page-f168__border-radius) var(--page-f168__border-radius) 0 0;
      box-shadow: none;
    }

    .page-f168__game-card-title {
      color: var(--page-f168__primary-color);
      font-size: 1.5em;
      margin-bottom: 10px;
      padding: 0 15px;
    }

    .page-f168__game-card-description {
      color: var(--page-f168__text-color-light);
      font-size: 0.9em;
      padding: 0 15px;
    }

    /* Game Providers */
    .page-f168__providers-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: var(--page-f168__spacing-unit);
      margin-top: calc(var(--page-f168__spacing-unit) * 2);
    }

    .page-f168__provider-logo-wrapper {
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        box-sizing: border-box;
        padding: var(--page-f168__spacing-unit) 0;
        background-color: var(--page-f168__dark-grey);
        border-radius: var(--page-f168__border-radius);
        transition: transform 0.3s ease;
    }

    .page-f168__provider-logo-wrapper:hover {
      transform: translateY(-3px);
    }

    .page-f168__provider-logo {
      width: 120px; /* Kích thước cố định cho logo nhà cung cấp */
      height: 60px;
      object-fit: contain;
      filter: grayscale(100%); /* Làm mờ để nổi bật khi hover */
      transition: filter 0.3s ease;
      box-shadow: none;
    }

    .page-f168__provider-logo:hover {
      filter: grayscale(0%);
    }

    /* Promotions Section */
    .page-f168__promo-card {
      background-color: var(--page-f168__dark-grey);
      border-radius: var(--page-f168__border-radius);
      padding: calc(var(--page-f168__spacing-unit) * 1.5);
      margin-bottom: var(--page-f168__spacing-unit);
      text-align: left;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    }

    .page-f168__promo-card-title {
      color: var(--page-f168__primary-color);
      font-size: 1.8em;
      margin-bottom: 10px;
    }

    .page-f168__promo-card-description {
      color: var(--page-f168__secondary-color);
      margin-bottom: var(--page-f168__spacing-unit);
    }

    .page-f168__promo-list {
      list-style: none;
      padding: 0;
      text-align: left;
    }

    .page-f168__promo-list li {
      margin-bottom: 10px;
      color: var(--page-f168__text-color-light);
      position: relative;
      padding-left: 25px;
    }

    .page-f168__promo-list li::before {
      content: '⚡';
      position: absolute;
      left: 0;
      color: var(--page-f168__primary-color);
    }

    /* Why Choose Us Section */
    .page-f168__features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: var(--page-f168__spacing-unit);
      margin-top: calc(var(--page-f168__spacing-unit) * 2);
    }

    .page-f168__feature-item {
      background-color: var(--page-f168__dark-grey);
      border-radius: var(--page-f168__border-radius);
      padding: calc(var(--page-f168__spacing-unit) * 1.5);
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      transition: transform 0.3s ease;
      text-align: left;
    }

    .page-f168__feature-item:hover {
      transform: translateY(-5px);
    }

    .page-f168__feature-icon-wrapper {
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        box-sizing: border-box;
        margin-bottom: var(--page-f168__spacing-unit);
        text-align: center;
    }

    .page-f168__feature-icon {
      width: 80px; /* Kích thước icon */
      height: 80px;
      object-fit: contain;
      margin-bottom: 15px;
      box-shadow: none;
    }

    .page-f168__feature-title {
      color: var(--page-f168__primary-color);
      font-size: 1.5em;
      margin-bottom: 10px;
      text-align: center;
    }

    .page-f168__feature-description {
      color: var(--page-f168__text-color-light);
      font-size: 0.9em;
      text-align: center;
    }

    /* FAQ Section */
    .page-f168__faq-list {
      max-width: 900px;
      margin: calc(var(--page-f168__spacing-unit) * 2) auto 0;
      text-align: left;
    }

    .page-f168__faq-item {
      background-color: var(--page-f168__dark-grey);
      border-radius: var(--page-f168__border-radius);
      margin-bottom: var(--page-f168__spacing-unit);
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      overflow: hidden;
    }

    .page-f168__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: var(--page-f168__spacing-unit);
      cursor: pointer;
      background-color: #2a2a2a;
      color: var(--page-f168__primary-color);
      font-size: 1.1em;
      font-weight: bold;
      user-select: none;
      transition: background-color 0.3s ease;
    }

    .page-f168__faq-question:hover {
      background-color: #3a3a3a;
    }

    .page-f168__faq-question h3 {
      margin: 0;
      color: var(--page-f168__primary-color);
      pointer-events: none; /* Ngăn chặn h3 chặn sự kiện click của div cha */
      flex-grow: 1;
    }

    .page-f168__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      margin-left: var(--page-f168__spacing-unit);
      pointer-events: none; /* Ngăn chặn toggle chặn sự kiện click của div cha */
      transition: transform 0.3s ease;
    }

    .page-f168__faq-item.active .page-f168__faq-toggle {
      transform: rotate(45deg); /* Xoay dấu + thành X hoặc - */
    }

    .page-f168__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 var(--page-f168__spacing-unit);
      opacity: 0;
      color: var(--page-f168__text-color-light);
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      text-align: left;
    }

    .page-f168__faq-item.active .page-f168__faq-answer {
      max-height: 2000px !important; /* Đủ lớn để chứa mọi nội dung */
      padding: var(--page-f168__spacing-unit) !important;
      opacity: 1;
    }

    /* CTA Section */
    .page-f168__cta-section {
      background-color: var(--page-f168__dark-grey);
      padding: calc(var(--page-f168__spacing-unit) * 3) 0;
      margin-top: calc(var(--page-f168__spacing-unit) * 2);
    }

    .page-f168__cta-title {
      color: var(--page-f168__primary-color);
      font-size: 2.5em;
      margin-bottom: var(--page-f168__spacing-unit);
    }

    .page-f168__cta-description {
      color: var(--page-f168__secondary-color);
      font-size: 1.2em;
      margin-bottom: calc(var(--page-f168__spacing-unit) * 1.5);
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-f168__hero-section {
        padding-top: var(--page-f168__header-safe-area-mobile);
      }

      .page-f168__hero-title {
        font-size: 2.2em;
      }

      .page-f168__hero-description {
        font-size: 1em;
      }

      .page-f168__section-title {
        font-size: 2em;
      }

      .page-f168__section-subtitle {
        font-size: 1em;
      }

      .page-f168__button {
        padding: 12px 25px;
        font-size: 1em;
      }

      .page-f168__games-grid,
      .page-f168__providers-grid,
      .page-f168__features-grid {
        grid-template-columns: 1fr;
      }

      .page-f168__game-card-image {
        height: 180px;
      }

      .page-f168__promo-card-title {
        font-size: 1.5em;
      }

      .page-f168__feature-title {
        font-size: 1.3em;
      }

      .page-f168__faq-question {
        font-size: 1em;
        padding: 15px;
      }

      .page-f168__faq-answer {
        padding: 15px;
      }

      .page-f168__cta-title {
        font-size: 2em;
      }

      .page-f168__cta-description {
        font-size: 1em;
      }

      /* Responsive image handling for all images */
      .page-f168 img {
        max-width: 100% !important;
        height: auto !important;
        object-fit: cover !important; /* Or contain, depending on context */
      }

      .page-f168__hero-image-wrapper,
      .page-f168__game-card-image-wrapper,
      .page-f168__provider-logo-wrapper,
      .page-f168__feature-icon-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }