:root {
      --page-choigac1-primary-color: #e44d26; /* Cam đỏ */
      --page-choigac1-secondary-color: #ffc107; /* Vàng hổ phách */
      --page-choigac1-dark-bg: #1a1a1a; /* Nền tối */
      --page-choigac1-light-bg: #f8f9fa; /* Nền sáng */
      --page-choigac1-text-color: #333;
      --page-choigac1-white: #fff;
      --page-choigac1-border-radius: 8px;
      --page-choigac1-spacing-xl: 60px;
      --page-choigac1-spacing-lg: 40px;
      --page-choigac1-spacing-md: 20px;
      --page-choigac1-spacing-sm: 10px;
    }

    .page-choigac1 {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-choigac1-text-color);
      background-color: var(--page-choigac1-light-bg);
      overflow-x: hidden;
      padding-top: var(--page-choigac1-spacing-sm); /* Small top padding, assuming body handles header offset */
    }

    .page-choigac1__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 var(--page-choigac1-spacing-md);
    }

    .page-choigac1__section {
      padding: var(--page-choigac1-spacing-xl) 0;
      text-align: center;
    }

    .page-choigac1__section--dark {
      background-color: var(--page-choigac1-dark-bg);
      color: var(--page-choigac1-white);
    }

    .page-choigac1__title {
      font-size: 2.8em;
      margin-bottom: var(--page-choigac1-spacing-lg);
      color: var(--page-choigac1-primary-color);
    }

    .page-choigac1__title--white {
      color: var(--page-choigac1-white);
    }

    .page-choigac1__subtitle {
      font-size: 1.5em;
      margin-bottom: var(--page-choigac1-spacing-md);
      color: var(--page-choigac1-text-color);
    }

    .page-choigac1__subtitle--white {
      color: var(--page-choigac1-white);
    }

    .page-choigac1__text {
      font-size: 1.1em;
      margin-bottom: var(--page-choigac1-spacing-md);
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-choigac1__button {
      display: inline-block;
      background-color: var(--page-choigac1-primary-color);
      color: var(--page-choigac1-white);
      padding: var(--page-choigac1-spacing-sm) var(--page-choigac1-spacing-md);
      border-radius: var(--page-choigac1-border-radius);
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
      border: none;
      cursor: pointer;
      font-size: 1em;
    }

    .page-choigac1__button:hover {
      background-color: #c73c1d;
    }

    .page-choigac1__button--secondary {
      background-color: var(--page-choigac1-secondary-color);
      color: var(--page-choigac1-dark-bg);
    }

    .page-choigac1__button--secondary:hover {
      background-color: #e0a800;
    }

    /* Hero Section */
    .page-choigac1__hero-section {
      background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('[GALLERY:hero:1920x1080:cockfighting,stadium,mobile-betting]') center center / cover no-repeat;
      color: var(--page-choigac1-white);
      padding: var(--page-choigac1-spacing-xl) 0;
      min-height: 500px;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
    }

    .page-choigac1__hero-content {
      max-width: 900px;
      padding: var(--page-choigac1-spacing-md);
    }

    .page-choigac1__hero-title {
      font-size: 3.5em;
      margin-bottom: var(--page-choigac1-spacing-sm);
      color: var(--page-choigac1-secondary-color);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    }

    .page-choigac1__hero-description {
      font-size: 1.3em;
      margin-bottom: var(--page-choigac1-spacing-lg);
      line-height: 1.5;
    }

    .page-choigac1__hero-buttons {
      display: flex;
      justify-content: center;
      gap: var(--page-choigac1-spacing-md);
    }

    /* Floating Buttons */
    .page-choigac1__floating-buttons {
      position: fixed;
      bottom: var(--page-choigac1-spacing-md);
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      gap: var(--page-choigac1-spacing-md);
      z-index: 1000;
    }

    /* Game Categories Section */
    .page-choigac1__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: var(--page-choigac1-spacing-lg);
      margin-top: var(--page-choigac1-spacing-lg);
    }

    .page-choigac1__game-card {
      background-color: var(--page-choigac1-white);
      border-radius: var(--page-choigac1-border-radius);
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
      overflow: hidden;
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      height: 100%;
      box-sizing: border-box;
    }

    .page-choigac1__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    }

    .page-choigac1__game-image-wrapper {
      width: 100%;
      height: 200px; /* Fixed height for consistency */
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
      background-color: #f0f0f0; /* Placeholder background */
    }

    .page-choigac1__game-image {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover; /* Ensures image covers the area without distortion */
      max-width: 100%; /* Responsive image */
    }

    .page-choigac1__game-content {
      padding: var(--page-choigac1-spacing-md);
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-choigac1__game-title {
      font-size: 1.4em;
      margin-bottom: var(--page-choigac1-spacing-sm);
      color: var(--page-choigac1-primary-color);
    }

    .page-choigac1__game-description {
      font-size: 0.95em;
      color: #666;
      margin-bottom: var(--page-choigac1-spacing-md);
      flex-grow: 1;
    }

    /* Features Section */
    .page-choigac1__features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: var(--page-choigac1-spacing-lg);
      margin-top: var(--page-choigac1-spacing-lg);
    }

    .page-choigac1__feature-item {
      background-color: var(--page-choigac1-white);
      padding: var(--page-choigac1-spacing-md);
      border-radius: var(--page-choigac1-border-radius);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
      text-align: left;
      display: flex;
      flex-direction: column;
      height: 100%;
      box-sizing: border-box;
    }

    .page-choigac1__feature-icon-wrapper {
      width: 100%;
      height: 150px; /* Larger space for feature image */
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: var(--page-choigac1-spacing-sm);
      background-color: #f0f0f0;
    }

    .page-choigac1__feature-icon {
      width: 100%;
      height: auto;
      max-width: 100%;
      object-fit: contain;
      display: block;
    }

    .page-choigac1__feature-title {
      font-size: 1.3em;
      color: var(--page-choigac1-primary-color);
      margin-bottom: var(--page-choigac1-spacing-sm);
    }

    .page-choigac1__feature-description {
      font-size: 0.95em;
      color: #555;
      flex-grow: 1;
    }

    /* Call to Action Section */
    .page-choigac1__cta-content {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-align: center;
      background-color: var(--page-choigac1-primary-color);
      color: var(--page-choigac1-white);
      padding: var(--page-choigac1-spacing-xl) var(--page-choigac1-spacing-md);
      border-radius: var(--page-choigac1-border-radius);
      margin: var(--page-choigac1-spacing-lg) auto;
      max-width: 900px;
    }

    .page-choigac1__cta-title {
      font-size: 2.5em;
      margin-bottom: var(--page-choigac1-spacing-md);
      color: var(--page-choigac1-white);
    }

    .page-choigac1__cta-text {
      font-size: 1.2em;
      margin-bottom: var(--page-choigac1-spacing-lg);
      max-width: 700px;
    }

    /* FAQ Section */
    .page-choigac1__faq-section {
      text-align: left;
    }

    .page-choigac1__faq-list {
      margin-top: var(--page-choigac1-spacing-lg);
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-choigac1__faq-item {
      background-color: var(--page-choigac1-white);
      border: 1px solid #ddd;
      border-radius: var(--page-choigac1-border-radius);
      margin-bottom: var(--page-choigac1-spacing-sm);
      overflow: hidden;
    }

    .page-choigac1__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: var(--page-choigac1-spacing-md);
      background-color: #f0f0f0;
      cursor: pointer;
      user-select: none;
      font-weight: bold;
      color: var(--page-choigac1-dark-bg);
      transition: background-color 0.3s ease;
    }

    .page-choigac1__faq-question:hover {
      background-color: #e0e0e0;
    }

    .page-choigac1__faq-question h3 {
      margin: 0;
      font-size: 1.1em;
      flex-grow: 1;
      pointer-events: none; /* Prevents text from blocking click event */
      color: var(--page-choigac1-primary-color);
    }

    .page-choigac1__faq-toggle {
      font-size: 1.5em;
      margin-left: var(--page-choigac1-spacing-sm);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevents icon from blocking click event */
    }

    .page-choigac1__faq-item.active .page-choigac1__faq-toggle {
      transform: rotate(45deg); /* Plus to X/Minus */
    }

    .page-choigac1__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 var(--page-choigac1-spacing-md);
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      color: var(--page-choigac1-text-color);
    }

    .page-choigac1__faq-item.active .page-choigac1__faq-answer {
      max-height: 2000px !important; /* Sufficiently large to contain content */
      padding: var(--page-choigac1-spacing-md) !important;
      opacity: 1;
    }

    /* Responsive Design */
    @media (max-width: 1024px) {
      .page-choigac1__hero-title {
        font-size: 3em;
      }
    }

    @media (max-width: 768px) {
      .page-choigac1__section {
        padding: var(--page-choigac1-spacing-lg) 0;
      }

      .page-choigac1__title {
        font-size: 2.2em;
      }

      .page-choigac1__subtitle {
        font-size: 1.3em;
      }

      .page-choigac1__hero-title {
        font-size: 2.5em;
      }

      .page-choigac1__hero-description {
        font-size: 1.1em;
      }

      .page-choigac1__hero-buttons {
        flex-direction: column;
        gap: var(--page-choigac1-spacing-sm);
      }

      .page-choigac1__button {
        width: 100%;
        max-width: 250px;
        box-sizing: border-box;
      }

      .page-choigac1__floating-buttons {
        flex-direction: column;
        gap: var(--page-choigac1-spacing-sm);
        bottom: var(--page-choigac1-spacing-sm);
      }

      .page-choigac1__game-grid,
      .page-choigac1__features-grid {
        grid-template-columns: 1fr;
        gap: var(--page-choigac1-spacing-md);
      }

      .page-choigac1__game-card,
      .page-choigac1__feature-item {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }

      .page-choigac1__game-image-wrapper,
      .page-choigac1__feature-icon-wrapper {
        height: 180px; /* Adjust height for mobile */
      }

      .page-choigac1__cta-title {
        font-size: 2em;
      }

      .page-choigac1__cta-text {
        font-size: 1em;
      }

      .page-choigac1__faq-question {
        padding: var(--page-choigac1-spacing-sm);
      }

      .page-choigac1__faq-question h3 {
        font-size: 1em;
      }

      .page-choigac1__faq-answer {
        padding: 0 var(--page-choigac1-spacing-sm);
      }

      .page-choigac1__faq-item.active .page-choigac1__faq-answer {
        padding: var(--page-choigac1-spacing-sm) !important;
      }
    }

    @media (max-width: 480px) {
      .page-choigac1__hero-title {
        font-size: 2em;
      }

      .page-choigac1__cta-title {
        font-size: 1.8em;
      }

      .page-choigac1__text {
        font-size: 1em;
      }
    }