/* Reset và biến cơ bản */
    :root {
      --page-sao789click-primary-color: #e44d26; /* Màu cam đậm */
      --page-sao789click-secondary-color: #ff7f50; /* Màu cam nhạt hơn */
      --page-sao789click-dark-bg: #1a1a1a;
      --page-sao789click-light-bg: #f5f5f5;
      --page-sao789click-text-color: #333;
      --page-sao789click-white-text: #ffffff;
      --page-sao789click-border-radius: 8px;
      --page-sao789click-spacing-lg: 40px;
      --page-sao789click-spacing-md: 20px;
      --page-sao789click-spacing-sm: 10px;
    }

    /* Các kiểu chung cho trang */
    .page-sao789click {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-sao789click-text-color);
      background-color: var(--page-sao789click-light-bg);
      padding-bottom: 80px; /* Khoảng cách cho nút nổi */
    }

    .page-sao789click__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 var(--page-sao789click-spacing-md);
    }

    .page-sao789click__section {
      padding: var(--page-sao789click-spacing-lg) 0;
      text-align: center;
    }

    .page-sao789click__section--dark {
      background-color: var(--page-sao789click-dark-bg);
      color: var(--page-sao789click-white-text);
    }

    .page-sao789click__heading {
      font-size: 2.5em;
      margin-bottom: var(--page-sao789click-spacing-md);
      color: var(--page-sao789click-primary-color);
    }

    .page-sao789click__heading--dark {
      color: var(--page-sao789click-secondary-color);
    }

    .page-sao789click__subheading {
      font-size: 1.8em;
      margin-bottom: var(--page-sao789click-spacing-md);
      color: var(--page-sao789click-text-color);
    }

    .page-sao789click__subheading--dark {
      color: var(--page-sao789click-white-text);
    }

    .page-sao789click__paragraph {
      font-size: 1.1em;
      margin-bottom: var(--page-sao789click-spacing-md);
      color: var(--page-sao789click-text-color);
    }

    .page-sao789click__paragraph--dark {
      color: var(--page-sao789click-white-text);
    }

    .page-sao789click__button {
      display: inline-block;
      background-color: var(--page-sao789click-primary-color);
      color: var(--page-sao789click-white-text);
      padding: 12px 25px;
      border-radius: var(--page-sao789click-border-radius);
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
      border: none;
      cursor: pointer;
      font-size: 1.1em;
    }

    .page-sao789click__button:hover {
      background-color: var(--page-sao789click-secondary-color);
    }

    /* Hero Section */
    .page-sao789click__hero-section {
      position: relative;
      background-color: #000; /* Đảm bảo màu nền đủ tối cho văn bản trắng */
      color: var(--page-sao789click-white-text);
      padding-top: 10px; /* Đảm bảo không bị che bởi header cố định */
      padding-bottom: var(--page-sao789click-spacing-lg);
      overflow: hidden;
      text-align: center;
    }

    .page-sao789click__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.6; /* Làm mờ ảnh nền để văn bản dễ đọc hơn */
      z-index: 1;
    }

    .page-sao789click__hero-content {
      position: relative;
      z-index: 2;
      padding: var(--page-sao789click-spacing-lg) var(--page-sao789click-spacing-md);
      max-width: 900px;
      margin: 0 auto;
    }

    .page-sao789click__hero-title {
      font-size: 3em;
      margin-bottom: var(--page-sao789click-spacing-sm);
      color: var(--page-sao789click-white-text);
      line-height: 1.2;
    }

    .page-sao789click__hero-subtitle {
      font-size: 1.5em;
      margin-bottom: var(--page-sao789click-spacing-md);
      color: var(--page-sao789click-white-text);
    }

    /* Nút đăng nhập nổi */
    .page-sao789click__floating-button-wrapper {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      background: rgba(0, 0, 0, 0.8);
      padding: var(--page-sao789click-spacing-sm);
      box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.3);
      text-align: center;
    }

    .page-sao789click__floating-button {
      background-color: #4CAF50; /* Màu xanh lá nổi bật */
      color: white;
      padding: 15px 30px;
      border-radius: 50px;
      font-size: 1.2em;
      font-weight: bold;
      text-align: center;
      cursor: pointer;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
      transition: background-color 0.3s ease, transform 0.2s ease;
      display: block; /* Để button chiếm toàn bộ chiều rộng wrapper trên mobile */
      max-width: 400px; /* Giới hạn chiều rộng trên desktop */
      margin: 0 auto;
      border: none; /* Đảm bảo không có border */
    }

    .page-sao789click__floating-button:hover {
      background-color: #45a049;
      transform: translateY(-2px);
    }

    /* Game Categories */
    .page-sao789click__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: var(--page-sao789click-spacing-md);
      margin-top: var(--page-sao789click-spacing-lg);
    }

    .page-sao789click__game-card {
      background-color: var(--page-sao789click-white-text);
      border-radius: var(--page-sao789click-border-radius);
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
      overflow: hidden;
      text-align: left;
      transition: transform 0.3s ease;
    }

    .page-sao789click__game-card:hover {
      transform: translateY(-5px);
    }

    .page-sao789click__game-card-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
    }

    .page-sao789click__game-card-content {
      padding: var(--page-sao789click-spacing-md);
    }

    .page-sao789click__game-card-title {
      font-size: 1.4em;
      margin-bottom: var(--page-sao789click-spacing-sm);
      color: var(--page-sao789click-primary-color);
    }

    .page-sao789click__game-card-description {
      font-size: 0.95em;
      color: #555;
    }

    /* How-to Section */
    .page-sao789click__steps-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: var(--page-sao789click-spacing-md);
      margin-top: var(--page-sao789click-spacing-lg);
    }

    .page-sao789click__step-card {
      background-color: var(--page-sao789click-white-text);
      border-radius: var(--page-sao789click-border-radius);
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
      padding: var(--page-sao789click-spacing-md);
      text-align: center;
    }

    .page-sao789click__step-icon {
      width: 80px;
      height: 80px;
      margin-bottom: var(--page-sao789click-spacing-sm);
      display: block; /* Đảm bảo hình ảnh không bị coi là inline */
      margin-left: auto;
      margin-right: auto;
      border-radius: 50%;
      object-fit: cover;
    }

    .page-sao789click__step-title {
      font-size: 1.3em;
      color: var(--page-sao789click-primary-color);
      margin-bottom: var(--page-sao789click-spacing-sm);
    }

    .page-sao789click__step-description {
      font-size: 1em;
      color: #666;
    }

    /* FAQ Section */
    .page-sao789click__faq-list {
      margin-top: var(--page-sao789click-spacing-lg);
      text-align: left;
    }

    .page-sao789click__faq-item {
      background-color: var(--page-sao789click-white-text);
      border-radius: var(--page-sao789click-border-radius);
      margin-bottom: var(--page-sao789click-spacing-sm);
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
      overflow: hidden;
    }

    .page-sao789click__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: var(--page-sao789click-spacing-md);
      cursor: pointer;
      background-color: #f9f9f9;
      border-bottom: 1px solid #eee;
      user-select: none;
      transition: background-color 0.3s ease;
      color: var(--page-sao789click-text-color);
      font-weight: bold;
    }

    .page-sao789click__faq-question:hover {
      background-color: #f0f0f0;
    }

    .page-sao789click__faq-question h3 {
      margin: 0;
      font-size: 1.2em;
      flex-grow: 1;
      pointer-events: none; /* Prevent h3 from blocking click event on parent */
      color: var(--page-sao789click-primary-color);
    }

    .page-sao789click__faq-toggle {
      font-size: 1.5em;
      line-height: 1;
      margin-left: var(--page-sao789click-spacing-sm);
      pointer-events: none; /* Prevent toggle icon from blocking click event on parent */
      transition: transform 0.3s ease;
    }

    .page-sao789click__faq-item.active .page-sao789click__faq-toggle {
      transform: rotate(45deg); /* Change + to X (or rotate to make it -) */
    }

    .page-sao789click__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 15px;
      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: var(--page-sao789click-white-text);
      color: #555;
    }

    .page-sao789click__faq-item.active .page-sao789click__faq-answer {
      max-height: 2000px !important; /* Sufficiently large to contain content */
      padding: 20px 15px !important;
      opacity: 1;
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-sao789click__container {
        padding: 0 var(--page-sao789click-spacing-sm);
      }

      .page-sao789click__hero-title {
        font-size: 2.2em;
      }

      .page-sao789click__hero-subtitle {
        font-size: 1.2em;
      }

      .page-sao789click__heading {
        font-size: 2em;
      }

      .page-sao789click__subheading {
        font-size: 1.5em;
      }

      .page-sao789click__paragraph {
        font-size: 1em;
      }

      .page-sao789click__game-grid,
      .page-sao789click__steps-grid {
        grid-template-columns: 1fr;
      }

      .page-sao789click__game-card-image {
        height: 180px;
      }

      .page-sao789click__faq-question {
        padding: var(--page-sao789click-spacing-sm);
      }

      .page-sao789click__faq-question h3 {
        font-size: 1em;
      }

      .page-sao789click__faq-answer {
        padding: 15px 10px;
      }

      .page-sao789click__faq-item.active .page-sao789click__faq-answer {
        padding: 15px 10px !important;
      }

      /* Responsive image optimization */
      .page-sao789click img {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-sao789click__hero-background {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-sao789click__game-card-image {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-sao789click__step-icon {
        max-width: 100% !important;
        height: auto !important;
      }
    }