.page-index {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333333; /* Default dark text for light body background */
  background-color: #ffffff; /* Default white background, assuming shared.css sets body to white or light color */
}

.page-index__article-wrap {
  max-width: 1150px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-index__section {
  padding: 40px 0;
}

.page-index__top-section {
  padding-top: 10px; /* Small top padding as per requirement, relying on body padding-top from shared.css */
  text-align: center;
  background-color: #ffffff;
}

.page-index__page-title {
  font-size: 2.8em;
  font-weight: bold;
  line-height: 1.2;
  margin-bottom: 25px;
  color: #017439;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-index__top-cta {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.page-index__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 30px;
  border-radius: 6px;
  font-size: 1.1em;
  font-weight: bold;
  text-decoration: none;
  transition: background-color 0.3s ease;
  min-height: 44px; /* Minimum touch target height */
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  max-width: 100%; /* Ensure responsiveness */
}

.page-index__btn--primary {
  background-color: #C30808; /* Custom color for register/login */
  color: #FFFF00; /* Custom font color for register/login */
  border: 2px solid #C30808;
}

.page-index__btn--primary:hover {
  background-color: #a30606;
  border-color: #a30606;
}

.page-index__section-title {
  font-size: 2.2em;
  font-weight: bold;
  margin-bottom: 25px;
  color: #017439;
  text-align: center;
}

.page-index__announcement-section p,
.page-index__brand-overview-section p,
.page-index__seo-content-section p,
.page-index__registration-tutorial-section p,
.page-index__faq-section p {
  margin-bottom: 15px;
  text-align: justify;
}

.page-index__feature-list,
.page-index__fact-list,
.page-index__identification-list,
.page-index__product-list,
.page-index__promo-features,
.page-index__contact-list {
  margin-bottom: 20px;
  padding-left: 25px;
}

.page-index__feature-list li,
.page-index__fact-list li,
.page-index__identification-list li,
.page-index__product-list li,
.page-index__promo-features li,
.page-index__contact-list li {
  margin-bottom: 8px;
  color: #333333;
}

.page-index__emphasis-text {
  font-style: italic;
  color: #d62828; /* Emphasized red */
  text-align: center;
  font-size: 1.1em;
  margin-top: 30px;
}

.page-index__link--emphasis {
  color: #0066ff;
  text-decoration: underline;
}

.page-index__info-card {
  background-color: #f9f9f9;
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 25px;
  margin-top: 30px;
  margin-bottom: 30px;
  color: #333333;
}

.page-index__info-card p {
  font-weight: bold;
  margin-bottom: 10px;
}

.page-index__info-card ul {
  list-style: disc;
  margin-left: 20px;
  margin-bottom: 10px;
}

.page-index__info-card em {
  font-size: 0.9em;
  color: #555;
}

.page-index__warning-card {
  background-color: #fff4f4;
  border-left: 5px solid #ff4141;
  padding: 20px 25px;
  margin-bottom: 30px;
  font-size: 1em;
  color: #d62828;
}

.page-index__warning-card strong {
  color: #ff4141;
}

.page-index__seo-content-section h2 {
  font-size: 2em;
  color: #017439;
  margin-top: 40px;
  margin-bottom: 20px;
  text-align: center;
}

.page-index__seo-content-section h3 {
  font-size: 1.6em;
  color: #017439;
  margin-top: 30px;
  margin-bottom: 15px;
  text-align: left;
}

.page-index__wp-caption {
  text-align: center;
  margin: 30px auto;
  max-width: 680px;
  border: 1px solid #eee;
  padding: 5px;
  background-color: #f9f9f9;
  box-sizing: border-box;
}

.page-index__wp-caption img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-index__wp-caption figcaption {
  font-style: italic;
  font-size: 0.9em;
  color: #666;
  padding: 10px 5px;
}

.page-index__expert-quote {
  background-color: #f5f5f5;
  border-left: 4px solid #017439;
  padding: 20px 25px;
  margin: 40px 0;
  font-style: italic;
  color: #555;
}

.page-index__expert-quote p {
  margin-bottom: 10px;
  font-size: 1.1em;
  text-align: left;
}

.page-index__expert-quote cite {
  display: block;
  text-align: right;
  font-style: normal;
  font-weight: bold;
  color: #017439;
  margin-top: 10px;
}

.page-index__promo-box-section {
  background-color: #ffffff;
}

.page-index__promo-box {
  background-color: #fffbe6; /* Light yellow background */
  border: 2px dashed #111;
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  margin: 40px auto;
  max-width: 800px;
  box-sizing: border-box;
}

.page-index__promo-title {
  font-size: 1.8em;
  color: #d62828; /* Emphasized red */
  margin-bottom: 20px;
  font-weight: bold;
}

.page-index__promo-box p {
  margin-bottom: 15px;
  text-align: center;
}

.page-index__promo-features {
  list-style: none;
  padding: 0;
  margin-bottom: 25px;
}

.page-index__promo-features li {
  margin-bottom: 8px;
  color: #333333;
  font-size: 1.1em;
}

.page-index__btn--promo {
  background-color: #d62828; /* Emphasized red for promo CTA */
  color: #ffffff;
  border: 2px solid #d62828;
  padding: 15px 35px;
  font-size: 1.2em;
  border-radius: 8px;
  display: inline-block;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s ease;
}

.page-index__btn--promo:hover {
  background-color: #b31e1e;
  border-color: #b31e1e;
}

.page-index__registration-tutorial-section h2 {
  font-size: 2em;
  color: #017439;
  margin-top: 40px;
  margin-bottom: 30px;
  text-align: center;
}

.page-index__step {
  margin-bottom: 40px;
}

.page-index__step-title {
  font-size: 1.8em;
  color: #017439;
  margin-bottom: 15px;
  text-align: left;
}

.page-index__faq-section h2 {
  font-size: 2em;
  color: #017439;
  margin-top: 40px;
  margin-bottom: 30px;
  text-align: center;
}

.page-index__faq-item {
  margin-bottom: 25px;
}

.page-index__faq-question {
  font-size: 1.4em;
  color: #017439;
  font-weight: bold;
  margin-bottom: 10px;
  text-align: left;
}

.page-index__faq-answer p {
  padding-left: 20px;
  text-align: justify;
}

.page-index__closing-text {
  margin-top: 30px;
  margin-bottom: 20px;
  text-align: center;
  font-size: 1.1em;
  font-style: italic;
}

.page-index__contact-info {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid #eee;
  text-align: center;
}

.page-index__contact-title {
  font-size: 1.8em;
  color: #017439;
  margin-bottom: 20px;
}

.page-index__contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.page-index__contact-list li {
  font-size: 1.1em;
  color: #333333;
}

.page-index__link {
  color: #0066ff;
  text-decoration: none;
}

.page-index__link:hover {
  text-decoration: underline;
}

/* --- Responsive Styles --- */

@media (max-width: 1024px) {
  .page-index__page-title {
    font-size: 2.5em;
  }

  .page-index__section-title {
    font-size: 1.9em;
  }

  .page-index__seo-content-section h2 {
    font-size: 1.8em;
  }

  .page-index__seo-content-section h3,
  .page-index__step-title,
  .page-index__promo-title,
  .page-index__faq-question,
  .page-index__contact-title {
    font-size: 1.5em;
  }

  .page-index__btn {
    padding: 10px 25px;
    font-size: 1em;
  }

  .page-index__btn--promo {
    padding: 12px 30px;
    font-size: 1.1em;
  }
}

@media (max-width: 768px) {
  .page-index {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-index__article-wrap {
    padding: 0 15px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-index__section {
    padding: 30px 0 !important;
  }

  /* Module 0: Top section title and CTA */
  .page-index__top-section {
    padding-top: 10px !important; /* Ensure small padding */
  }

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

  .page-index__top-cta {
    flex-direction: column !important;
    gap: 10px !important;
    margin-bottom: 30px !important;
    padding: 0 15px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-index__btn {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 15px !important;
    font-size: 1.05em !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    box-sizing: border-box !important;
  }

  /* Module 1: Announcement / Main Promotion Area */
  .page-index__section-title {
    font-size: 1.6em !important;
    margin-bottom: 20px !important;
  }

  .page-index__announcement-section p,
  .page-index__brand-overview-section p,
  .page-index__seo-content-section p,
  .page-index__registration-tutorial-section p,
  .page-index__faq-section p {
    text-align: left !important;
  }

  /* Module 2: Brand Overview + Info Cards */
  .page-index__info-card,
  .page-index__warning-card {
    padding: 20px !important;
    margin-top: 20px !important;
    margin-bottom: 20px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  /* Module 3: Super Long SEO Content */
  .page-index__seo-content-section h2 {
    font-size: 1.5em !important;
    margin-top: 30px !important;
    margin-bottom: 15px !important;
    text-align: left !important;
  }

  .page-index__seo-content-section h3 {
    font-size: 1.3em !important;
    margin-top: 25px !important;
    margin-bottom: 10px !important;
    text-align: left !important;
  }

  /* Universal image and figure styles */
  .page-index img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
    box-sizing: border-box !important;
  }

  .page-index__wp-caption {
    margin: 20px auto !important;
    padding: 3px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-index__expert-quote {
    padding: 15px 20px !important;
    margin: 30px 0 !important;
  }

  /* Module 4: World Cup / Big Event Promo Box */
  .page-index__promo-box {
    padding: 25px !important;
    margin: 30px auto !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-index__promo-title {
    font-size: 1.5em !important;
    margin-bottom: 15px !important;
  }

  .page-index__btn--promo {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 15px !important;
    font-size: 1.05em !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    box-sizing: border-box !important;
  }

  /* Module 5: Four-Step Registration Tutorial */
  .page-index__registration-tutorial-section h2 {
    font-size: 1.6em !important;
    margin-bottom: 25px !important;
  }

  .page-index__step-title {
    font-size: 1.3em !important;
    margin-bottom: 10px !important;
  }

  /* Module 6: FAQ + Footer Contact Info */
  .page-index__faq-section h2 {
    font-size: 1.6em !important;
    margin-bottom: 25px !important;
  }

  .page-index__faq-question {
    font-size: 1.2em !important;
  }

  .page-index__faq-answer p {
    padding-left: 10px !important;
  }

  .page-index__contact-title {
    font-size: 1.5em !important;
  }

  .page-index__contact-list li {
    font-size: 1em !important;
  }

  /* Ensure all sections and containers are responsive */
  .page-index__section,
  .page-index__card,
  .page-index__container,
  .page-index__top-cta,
  .page-index__button-group,
  .page-index__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-index__top-cta {
    flex-direction: column !important;
    gap: 10px !important;
  }
}