:root {
      --primary-color: #e44d26; /* Màu cam đậm, năng động */
      --secondary-color: #f7931e; /* Màu cam nhạt hơn, bổ trợ */
      --accent-color: #6a0dad; /* Màu tím đậm, tạo điểm nhấn */
      --text-color-dark: #333;
      --text-color-light: #fff;
      --background-dark: #1a1a1a;
      --background-light: #f4f4f4;
      --border-radius-small: 8px;
      --border-radius-large: 15px;
      --spacing-small: 10px;
      --spacing-medium: 20px;
      --spacing-large: 30px;
    }

    /* Base styles for the page container */
    .page-123-hero {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--text-color-dark);
      background-color: var(--background-light);
      overflow-x: hidden; /* Ngăn cuộn ngang */
      padding-top: 10px; /* Khoảng đệm trên nhỏ, không phải bù trừ header */
    }

    /* Section styling */
    .page-123-hero__section {
      padding: var(--spacing-large) var(--spacing-medium);
      margin-bottom: var(--spacing-medium);
      background-color: var(--text-color-light);
      border-radius: var(--border-radius-large);
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
      text-align: center;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      box-sizing: border-box;
    }

    .page-123-hero__section--dark {
      background-color: var(--background-dark);
      color: var(--text-color-light);
    }

    /* Headings */
    .page-123-hero__heading-primary {
      font-size: 2.5em;
      color: var(--primary-color);
      margin-bottom: var(--spacing-medium);
      text-align: center;
      font-weight: bold;
      line-height: 1.2;
    }

    .page-123-hero__heading-secondary {
      font-size: 2em;
      color: var(--accent-color);
      margin-bottom: var(--spacing-small);
      text-align: center;
      line-height: 1.3;
    }

    .page-123-hero__heading-tertiary {
      font-size: 1.5em;
      color: var(--text-color-dark);
      margin-bottom: var(--spacing-small);
      line-height: 1.4;
    }
    .page-123-hero__section--dark .page-123-hero__heading-tertiary {
        color: var(--text-color-light);
    }

    /* Paragraphs */
    .page-123-hero__paragraph {
      font-size: 1.1em;
      margin-bottom: var(--spacing-small);
      text-align: justify;
      color: var(--text-color-dark);
    }
    .page-123-hero__section--dark .page-123-hero__paragraph {
        color: var(--text-color-light);
    }

    /* Buttons */
    .page-123-hero__button {
      display: inline-block;
      background-color: var(--primary-color);
      color: var(--text-color-light);
      padding: 12px 25px;
      border-radius: var(--border-radius-small);
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.2s ease;
      cursor: pointer;
      border: none;
    }

    .page-123-hero__button:hover {
      background-color: var(--secondary-color);
      transform: translateY(-2px);
    }

    .page-123-hero__button--secondary {
      background-color: var(--accent-color);
    }

    .page-123-hero__button--secondary:hover {
      background-color: #8a2be2; /* Màu tím nhạt hơn */
    }

    /* Floating action buttons */
    .page-123-hero__floating-buttons {
      position: fixed;
      bottom: var(--spacing-medium);
      right: var(--spacing-medium);
      display: flex;
      flex-direction: column;
      gap: var(--spacing-small);
      z-index: 1000;
    }

    .page-123-hero__floating-button {
      background-color: var(--primary-color);
      color: var(--text-color-light);
      padding: 12px 20px;
      border-radius: var(--border-radius-large);
      font-weight: bold;
      text-align: center;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
      cursor: pointer;
      transition: background-color 0.3s ease, transform 0.2s ease;
      font-size: 1em;
    }

    .page-123-hero__floating-button:hover {
      background-color: var(--secondary-color);
      transform: scale(1.05);
    }

    .page-123-hero__floating-button--login {
      background-color: var(--accent-color);
    }

    .page-123-hero__floating-button--login:hover {
      background-color: #8a2be2;
    }

    /* Hero section */
    .page-123-hero__hero-section {
      background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('[GALLERY:hero:1920x1080:betting,casino,mobile,123hero]') no-repeat center center/cover;
      color: var(--text-color-light);
      padding: 100px var(--spacing-medium);
      text-align: center;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      min-height: 500px;
      margin-bottom: var(--spacing-large);
      border-radius: var(--border-radius-large);
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      box-sizing: border-box;
    }

    .page-123-hero__hero-title {
      font-size: 3.5em;
      margin-bottom: var(--spacing-small);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
      font-weight: bold;
      color: var(--secondary-color);
    }

    .page-123-hero__hero-subtitle {
      font-size: 1.5em;
      margin-bottom: var(--spacing-large);
      max-width: 800px;
      text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    }

    /* Game categories section */
    .page-123-hero__game-categories {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: var(--spacing-medium);
      margin-top: var(--spacing-large);
    }

    .page-123-hero__game-card {
      background-color: var(--background-light);
      border-radius: var(--border-radius-small);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
      padding: var(--spacing-medium);
      flex: 1 1 calc(33% - var(--spacing-large)); /* 3 thẻ mỗi hàng */
      min-width: 280px;
      max-width: 380px;
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      box-sizing: border-box;
    }

    .page-123-hero__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    }

    .page-123-hero__game-card-image {
      width: 100%;
      max-width: 100%;
      height: auto;
      border-radius: var(--border-radius-small);
      margin-bottom: var(--spacing-small);
      display: block; /* Đảm bảo hình ảnh là block để định cỡ đúng */
    }

    .page-123-hero__game-card-title {
      font-size: 1.3em;
      color: var(--accent-color);
      margin-bottom: var(--spacing-small);
      font-weight: bold;
    }

    .page-123-hero__game-card-description {
      font-size: 0.95em;
      color: var(--text-color-dark);
      margin-bottom: var(--spacing-medium);
    }

    /* Promotions section */
    .page-123-hero__promotions-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: var(--spacing-medium);
      margin-top: var(--spacing-large);
    }

    .page-123-hero__promotion-card {
      background-color: var(--background-dark);
      color: var(--text-color-light);
      border-radius: var(--border-radius-large);
      padding: var(--spacing-medium);
      text-align: left;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      box-sizing: border-box;
    }

    .page-123-hero__promotion-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    }

    .page-123-hero__promotion-card-image {
      width: 100%;
      max-width: 100%;
      height: auto;
      border-radius: var(--border-radius-small);
      margin-bottom: var(--spacing-small);
      display: block;
    }

    .page-123-hero__promotion-card-title {
      font-size: 1.4em;
      color: var(--secondary-color);
      margin-bottom: var(--spacing-small);
      font-weight: bold;
    }

    .page-123-hero__promotion-card-description {
      font-size: 1em;
      margin-bottom: var(--spacing-medium);
    }

    /* Features section (using a grid for features) */
    .page-123-hero__features-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: var(--spacing-medium);
        margin-top: var(--spacing-large);
    }

    .page-123-hero__feature-item {
        background-color: var(--text-color-light);
        padding: var(--spacing-medium);
        border-radius: var(--border-radius-large);
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
        text-align: center;
        box-sizing: border-box;
    }

    .page-123-hero__feature-icon {
        width: 100%; /* Đảm bảo hình ảnh được bọc đúng cách */
        max-width: 250px; /* Max width for consistency, but actual image will be larger */
        height: auto;
        margin-bottom: var(--spacing-small);
        display: block;
        margin-left: auto;
        margin-right: auto;
    }
    .page-123-hero__feature-icon img {
        max-width: 100%;
        height: auto;
        display: block;
    }

    .page-123-hero__feature-title {
        font-size: 1.2em;
        color: var(--primary-color);
        margin-bottom: var(--spacing-small);
        font-weight: bold;
    }

    .page-123-hero__feature-description {
        font-size: 0.95em;
        color: var(--text-color-dark);
    }

    /* FAQ Section */
    .page-123-hero__faq-container {
      margin-top: var(--spacing-large);
      text-align: left;
    }

    .page-123-hero__faq-item {
      background-color: #f9f9f9;
      border: 1px solid #ddd;
      border-radius: var(--border-radius-small);
      margin-bottom: var(--spacing-small);
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-123-hero__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px;
      background-color: var(--primary-color);
      color: var(--text-color-light);
      cursor: pointer;
      font-weight: bold;
      font-size: 1.1em;
      user-select: none;
      transition: background-color 0.3s ease;
      box-sizing: border-box;
    }

    .page-123-hero__faq-question:hover {
      background-color: var(--secondary-color);
    }

    .page-123-hero__faq-question h3 {
      margin: 0;
      flex-grow: 1;
      font-size: 1.1em; /* Đảm bảo kích thước tiêu đề nhất quán */
      color: var(--text-color-light); /* Đảm bảo màu văn bản cho độ tương phản */
      pointer-events: none; /* Ngăn h3 chặn sự kiện nhấp chuột */
    }

    .page-123-hero__faq-toggle {
      font-size: 1.5em;
      margin-left: 10px;
      transition: transform 0.3s ease;
      pointer-events: none; /* Ngăn biểu tượng chuyển đổi chặn sự kiện nhấp chuột */
    }

    .page-123-hero__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;
      opacity: 0;
      color: var(--text-color-dark);
      background-color: var(--text-color-light);
      box-sizing: border-box;
    }

    .page-123-hero__faq-item.active .page-123-hero__faq-answer {
      max-height: 2000px !important; /* Đủ lớn để chứa mọi nội dung */
      padding: 20px 15px !important;
      opacity: 1;
    }

    .page-123-hero__faq-item.active .page-123-hero__faq-toggle {
      transform: rotate(45deg); /* Thay đổi + thành X */
    }

    /* General image styling */
    .page-123-hero img {
      max-width: 100%;
      height: auto;
      display: block; /* Đảm bảo hình ảnh hoạt động đúng cách */
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-123-hero__section {
        padding: var(--spacing-medium) var(--spacing-small);
        margin-bottom: var(--spacing-small);
      }

      .page-123-hero__hero-section {
        padding: 80px var(--spacing-small);
        min-height: 400px;
      }

      .page-123-hero__hero-title {
        font-size: 2.5em;
      }

      .page-123-hero__hero-subtitle {
        font-size: 1.2em;
      }

      .page-123-hero__heading-primary {
        font-size: 2em;
      }

      .page-123-hero__heading-secondary {
        font-size: 1.6em;
      }

      .page-123-hero__heading-tertiary {
        font-size: 1.3em;
      }

      .page-123-hero__paragraph {
        font-size: 1em;
      }

      .page-123-hero__game-card,
      .page-123-hero__promotion-card,
      .page-123-hero__feature-item {
        flex: 1 1 100%; /* Một cột trên di động */
        max-width: 100%;
        margin-left: 0 !important;
        margin-right: 0 !important;
        box-sizing: border-box !important;
        width: 100% !important;
        padding: var(--spacing-small) !important;
      }

      .page-123-hero__game-categories,
      .page-123-hero__promotions-grid,
      .page-123-hero__features-grid {
        gap: var(--spacing-small);
        padding: 0 var(--spacing-small); /* Điều chỉnh padding cho container */
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }

      .page-123-hero__floating-buttons {
        bottom: var(--spacing-small);
        right: var(--spacing-small);
        gap: var(--spacing-small);
      }

      .page-123-hero__floating-button {
        padding: 10px 15px;
        font-size: 0.9em;
      }
      
      /* Đảm bảo các container hình ảnh và hình ảnh hoàn toàn phản hồi */
      .page-123-hero__game-card-image,
      .page-123-hero__promotion-card-image,
      .page-123-hero__feature-icon img {
          max-width: 100% !important;
          height: auto !important;
          box-sizing: border-box !important;
      }

      .page-123-hero__feature-icon {
          width: 100% !important; /* Container cho hình ảnh biểu tượng */
          max-width: 100% !important;
          height: auto !important;
          box-sizing: border-box !important;
      }

      /* Điều chỉnh FAQ trên di động */
      .page-123-hero__faq-question {
          padding: 12px;
          font-size: 1em;
      }
      .page-123-hero__faq-question h3 {
          font-size: 1em;
      }
      .page-123-hero__faq-answer {
          padding: 15px 12px;
      }
      .page-123-hero__faq-item.active .page-123-hero__faq-answer {
          padding: 15px 12px !important;
      }
      .page-123-hero__paragraph {
          word-wrap: break-word !important;
          overflow-wrap: break-word !important;
          word-break: break-word !important;
      }
    }

    @media (max-width: 480px) {
        .page-123-hero__hero-title {
            font-size: 2em;
        }
        .page-123-hero__hero-subtitle {
            font-size: 1em;
        }
        .page-123-hero__button {
            padding: 10px 20px;
            font-size: 1em;
        }
    }