.page-index {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--Text-Main); /* Light text on dark body background */
  background-color: var(--Deep-Navy);
}

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

.page-index__section {
  padding: 40px 0;
  margin-bottom: 20px;
}

.page-index__page-title {
  font-size: clamp(2em, 4vw, 3.5em);
  font-weight: bold;
  text-align: center;
  color: var(--Gold);
  margin-bottom: 15px;
  line-height: 1.2;
}

.page-index__description {
  text-align: center;
  font-size: 1.1em;
  color: var(--Text-Secondary);
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-index__top-section {
  padding-top: 10px; /* Small top padding, assuming body has header offset */
  background-color: var(--Deep-Navy);
}

.page-index__top-cta {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 30px;
}

.page-index__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 30px;
  border-radius: 6px;
  font-weight: bold;
  text-decoration: none;
  min-height: 44px;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}

.page-index__btn--primary {
  background: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-index__btn--secondary {
  background-color: transparent;
  color: var(--Text-Main);
  border: 2px solid var(--Border-Color);
}

.page-index__section-title {
  font-size: 2em;
  font-weight: bold;
  color: var(--Gold);
  text-align: center;
  margin-bottom: 30px;
}

.page-index__announcement-section p,
.page-index__brand-overview-section p,
.page-index__seo-content-section p,
.page-index__faq-section p {
  color: var(--Text-Secondary);
  margin-bottom: 15px;
  text-align: justify;
}

.page-index__announcement-section .page-index__section-title {
  color: var(--Text-Main);
}

.page-index__feature-list,
.page-index__fact-list,
.page-index__product-highlight-list,
.page-index__info-input-list,
.page-index__promo-feature-list,
.page-index__contact-list {
  list-style: disc;
  margin-left: 20px;
  margin-bottom: 20px;
  color: var(--Text-Secondary);
}

.page-index__feature-list li,
.page-index__fact-list li,
.page-index__product-highlight-list li,
.page-index__info-input-list li,
.page-index__promo-feature-list li,
.page-index__contact-list li {
  margin-bottom: 8px;
  color: var(--Text-Main);
}

.page-index__emphasis-text {
  text-align: center;
  font-style: italic;
  color: var(--Emphasis-Red, #ed1c24); /* Using a custom variable for emphasis red */
  font-weight: bold;
  margin-top: 25px;
}

.page-index__emphasis-text a {
  color: var(--Emphasis-Red, #ed1c24);
  text-decoration: underline;
}

.page-index__info-card {
  background-color: var(--Card-BG);
  border: 1px solid var(--Border-Color);
  border-radius: 8px;
  padding: 25px;
  margin-top: 30px;
  color: var(--Text-Main);
}

.page-index__info-card p strong {
  color: var(--Gold);
}

.page-index__info-card em {
  font-style: normal;
  color: var(--Text-Secondary);
  display: block;
  margin-top: 15px;
}

.page-index__warning-card {
  background-color: #fff4f4; /* Light red background */
  border-left: 5px solid #ff4141; /* Red left border */
  border-radius: 8px;
  padding: 25px;
  margin-top: 20px;
  color: #333333; /* Dark text for contrast on light background */
}

.page-index__warning-card strong {
  color: #ff4141;
  display: block;
  margin-bottom: 10px;
}

.page-index__seo-content-section h2 {
  font-size: 1.8em;
  color: var(--Text-Main);
  margin-top: 40px;
  margin-bottom: 20px;
  text-align: left;
}

.page-index__seo-content-section h3 {
  font-size: 1.4em;
  color: var(--Gold);
  margin-top: 30px;
  margin-bottom: 15px;
  text-align: left;
}

.page-index__identification-list {
  list-style: decimal;
  margin-left: 25px;
  margin-bottom: 20px;
  color: var(--Text-Secondary);
}

.page-index__identification-list li {
  margin-bottom: 10px;
  color: var(--Text-Main);
}

.page-index__why-choose-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-index__why-choose-list li {
  margin-bottom: 20px;
  color: var(--Text-Main);
}

.page-index__why-choose-list li strong {
  color: var(--Gold);
  font-size: 1.1em;
  display: block;
  margin-bottom: 5px;
}

.page-index__expert-quote {
  background-color: var(--Card-BG);
  border-left: 5px solid var(--Gold);
  padding: 20px 25px;
  margin: 40px 0;
  font-style: italic;
  color: var(--Text-Secondary);
  font-size: 1.1em;
}

.page-index__expert-quote p {
  margin: 0;
  text-align: left;
}

.page-index__product-highlight-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-index__product-highlight-list li {
  margin-bottom: 20px;
  color: var(--Text-Main);
}

.page-index__product-highlight-list li strong {
  color: var(--Gold);
  font-size: 1.2em;
  display: block;
  margin-bottom: 8px;
}

.page-index__product-highlight-list li a {
  color: var(--Auxiliary-Color); /* Link color */
  text-decoration: underline;
}

.page-index__promo-box-section {
  padding: 50px 0;
}

.page-index__promo-box {
  background-color: #fffbe6; /* Light yellow background */
  border: 2px dashed var(--Deep-Navy); /* Dashed border */
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  color: #333333; /* Dark text for contrast */
}

.page-index__promo-title {
  font-size: 2.2em;
  color: var(--Emphasis-Red, #d62828);
  margin-bottom: 20px;
  font-weight: bold;
}

.page-index__promo-feature-list {
  list-style: none;
  padding: 0;
  margin: 0 auto 30px auto;
  max-width: 600px;
  text-align: left;
  color: #333333;
}

.page-index__promo-feature-list li {
  margin-bottom: 10px;
  padding-left: 25px;
  position: relative;
}

.page-index__promo-feature-list li::before {
  content: '✓';
  color: var(--Emphasis-Red, #d62828);
  position: absolute;
  left: 0;
  font-weight: bold;
}

.page-index__btn--promo {
  background-color: var(--Emphasis-Red, #d62828); /* Red button */
  color: #ffffff;
  border: none;
  padding: 15px 40px;
  font-size: 1.2em;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-index__registration-tutorial-section h2,
.page-index__faq-section h2,
.page-index__contact-info-section h2 {
  color: var(--Text-Main);
}

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

.page-index__step-title {
  font-size: 1.6em;
  color: var(--Gold);
  margin-bottom: 15px;
  text-align: left;
}

.page-index__step-item p {
  color: var(--Text-Secondary);
  text-align: justify;
  margin-bottom: 15px;
}

.page-index__faq-item {
  background-color: var(--Card-BG);
  border: 1px solid var(--Border-Color);
  border-radius: 8px;
  padding: 20px 25px;
  margin-bottom: 15px;
  color: var(--Text-Main);
}

.page-index__faq-question {
  font-size: 1.2em;
  color: var(--Gold);
  margin: 0;
  cursor: default; /* FAQ is not interactive, so no pointer */
}

.page-index__faq-answer {
  padding-top: 10px;
  color: var(--Text-Secondary);
}

.page-index__contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-index__contact-list li {
  margin-bottom: 10px;
  color: var(--Text-Main);
}

.page-index__contact-list li strong {
  color: var(--Gold);
}

.page-index__contact-list li a {
  color: var(--Auxiliary-Color);
  text-decoration: underline;
}

.page-index__copyright {
  text-align: center;
  margin-top: 40px;
  font-size: 0.9em;
  color: var(--Text-Secondary);
}

.page-index img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
}

.page-index__wp-caption {
  margin: 20px auto;
  max-width: 680px; /* Ensure images in long text don't exceed this */
  text-align: center;
}

.page-index__wp-caption figcaption {
  font-size: 0.9em;
  color: var(--Text-Secondary);
  margin-top: 10px;
}

/* Responsive styles for tablet and mobile */
@media (max-width: 1024px) {
  .page-index__page-title {
    font-size: clamp(1.8em, 5vw, 3em);
  }
  .page-index__section-title {
    font-size: 1.8em;
  }
  .page-index__promo-title {
    font-size: 1.8em;
  }
  .page-index__step-title {
    font-size: 1.4em;
  }
  .page-index__faq-question {
    font-size: 1.1em;
  }
}

@media (max-width: 768px) {
  /* 1. Top Section (Module 0) */
  .page-index__top-section {
    padding-top: 10px !important; /* Ensure minimal padding */
    padding-left: 15px;
    padding-right: 15px;
    box-sizing: border-box;
  }
  .page-index__page-title {
    font-size: 2.2em !important;
    margin-bottom: 10px;
  }
  .page-index__description {
    font-size: 1em;
    margin-bottom: 20px;
    padding: 0 10px;
  }
  .page-index__top-cta {
    flex-direction: column;
    gap: 10px;
    padding: 0 15px;
  }
  .page-index__btn {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px;
    font-size: 1em;
  }

  /* 2. Single Column Long Text Container (Modules 1, 2, 3, 4, 5, 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;
    margin-bottom: 15px;
  }
  .page-index__section-title {
    font-size: 1.6em !important;
    margin-bottom: 20px;
    padding: 0 10px;
  }
  .page-index__announcement-section p,
  .page-index__brand-overview-section p,
  .page-index__seo-content-section p,
  .page-index__faq-section p {
    font-size: 0.95em;
    text-align: left;
  }
  .page-index__info-card,
  .page-index__warning-card,
  .page-index__promo-box,
  .page-index__faq-item {
    padding: 20px;
    margin-top: 20px;
    margin-bottom: 15px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-index__seo-content-section h2 {
    font-size: 1.5em !important;
    margin-top: 30px;
    margin-bottom: 15px;
  }
  .page-index__seo-content-section h3 {
    font-size: 1.2em !important;
    margin-top: 25px;
    margin-bottom: 10px;
  }

  /* 3. General Images and Figure */
  .page-index img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-index__wp-caption {
    margin: 15px auto !important;
    max-width: 100% !important;
  }
  .page-index__wp-caption figcaption {
    font-size: 0.85em;
  }

  /* 4. Buttons and Button Containers */
  .page-index__btn--promo {
    font-size: 1em !important;
    padding: 12px 30px;
    width: 100% !important;
    max-width: 100% !important;
  }
  .page-index__top-cta,
  .page-index__promo-box .page-index__btn--promo {
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
  }

  /* 5. Registration Tutorial and FAQ Sections */
  .page-index__step-item {
    margin-bottom: 30px;
  }
  .page-index__step-title {
    font-size: 1.3em !important;
    margin-bottom: 10px;
  }
  .page-index__faq-question {
    font-size: 1.1em !important;
  }
  .page-index__faq-answer {
    font-size: 0.95em;
  }
  .page-index__copyright {
    margin-top: 30px;
    padding: 0 15px;
  }
  .page-index__promo-title {
    font-size: 1.6em !important;
  }
  .page-index__promo-feature-list {
    padding: 0 10px;
  }
  .page-index__contact-list {
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-index__contact-list li {
    font-size: 0.95em;
  }
}