.page-index {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333333; /* Default text color for white background */
  background-color: #f9f9f9; /* Light background for the overall page body */
}

.page-index__article-wrap {
  max-width: 1150px;
  margin: 0 auto;
  padding: 0 20px;
  background-color: #ffffff; /* White background for main content area */
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.05);
}

.page-index__section {
  padding: 30px 0;
  margin-bottom: 20px;
}

.page-index__top-section {
  padding-top: 10px; /* Small top padding as body handles header offset */
  text-align: center;
  background-color: #10233F; /* Custom Card BG for top section */
  color: #F3F8FF; /* Text Main */
  padding-bottom: 40px;
}

.page-index__page-title {
  font-weight: bold;
  line-height: 1.2;
  letter-spacing: -0.5px;
  margin-bottom: 15px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  color: #F3F8FF; /* Text Main */
  font-size: clamp(2.2em, 4vw, 3.5em);
}

.page-index__page-description {
  font-size: 1.1em;
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: #AFC4E8; /* Text Secondary */
}

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

.page-index__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px; /* Minimum touch target height */
  padding: 12px 30px;
  border-radius: 6px;
  font-size: 1.1em;
  font-weight: bold;
  text-decoration: none;
  transition: background-color 0.3s ease, transform 0.2s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-index__btn--primary {
  background: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%); /* Custom Button color */
  color: #F3F8FF; /* Text Main */
  border: none;
}

.page-index__btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.page-index__btn--secondary {
  background: #08162B; /* Deep Navy */
  color: #F3F8FF; /* Text Main */
  border: 1px solid #244D84; /* Custom Border */
}

.page-index__btn--secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.page-index__section-title {
  font-size: 2.2em;
  font-weight: bold;
  color: #113B7A; /* Main color */
  text-align: center;
  margin-bottom: 30px;
  padding-top: 20px;
}

.page-index__announcement-title {
  font-size: 1.8em;
  font-weight: bold;
  color: #113B7A; /* Main color */
  text-align: center;
  margin-bottom: 20px;
}

.page-index__feature-list {
  list-style-type: decimal;
  margin: 20px auto;
  padding-left: 40px;
  max-width: 800px;
  font-size: 1.05em;
}

.page-index__feature-list li {
  margin-bottom: 10px;
}

.page-index__emphasis-text {
  text-align: center;
  font-style: italic;
  color: #ed1c24; /* Emphasize with red */
  font-weight: bold;
  margin-top: 25px;
  font-size: 1.1em;
}

.page-index__link-emphasis {
  color: #ed1c24; /* Emphasize with red */
  text-decoration: underline;
}

.page-index__fact-list {
  list-style-type: none;
  padding: 0;
  margin: 30px auto;
  max-width: 700px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
  font-size: 1.0em;
}

.page-index__fact-list li {
  background-color: #f0f8ff;
  padding: 10px 15px;
  border-radius: 5px;
  border-left: 4px solid #1D5FD1; /* Auxiliary color */
}

.page-index__info-card {
  background-color: #f9f9f9; /* Gray background for info card */
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 25px;
  margin: 30px auto;
  max-width: 900px;
  color: #333333;
}

.page-index__info-card ul {
  list-style-type: disc;
  padding-left: 25px;
  margin-top: 15px;
  margin-bottom: 15px;
}

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

.page-index__warning-card {
  background-color: #fff4f4; /* Light red background */
  border-left: 5px solid #ff4141; /* Red left border */
  border-radius: 8px;
  padding: 20px;
  margin: 30px auto;
  max-width: 900px;
  color: #333333;
  font-weight: normal;
  line-height: 1.5;
}

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

.page-index__seo-content-section p {
  margin-bottom: 15px;
  text-align: justify;
}

.page-index__sub-title {
  font-size: 1.5em;
  font-weight: bold;
  color: #113B7A; /* Main color */
  margin-top: 30px;
  margin-bottom: 15px;
}

.page-index__wp-caption {
  text-align: center;
  margin: 30px auto;
  max-width: 680px;
}

.page-index__wp-caption img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-index__wp-caption figcaption {
  font-size: 0.9em;
  color: #666;
  margin-top: 10px;
}

.page-index__identification-list {
  list-style-type: decimal;
  margin: 20px auto;
  padding-left: 40px;
  max-width: 800px;
}

.page-index__identification-list li {
  margin-bottom: 10px;
  text-align: justify;
}

.page-index__blockquote {
  border-left: 5px solid #1D5FD1; /* Auxiliary color */
  padding: 15px 20px;
  margin: 30px auto;
  font-style: italic;
  background-color: #f0f8ff;
  max-width: 900px;
  color: #555;
}

.page-index__blockquote p {
  margin-bottom: 0;
  text-align: justify;
}

.page-index__link-text {
  color: #1D5FD1; /* Auxiliary color */
  text-decoration: underline;
}

.page-index__link-text:hover {
  color: #113B7A; /* Main color */
}

.page-index__promo-box-section {
  padding: 40px 0;
}

.page-index__promo-box {
  background-color: #fffbe6; /* Light yellow background */
  border: 2px dashed #111; /* Dashed border */
  border-radius: 10px;
  padding: 30px;
  margin: 0 auto;
  max-width: 900px;
  text-align: center;
  color: #333333;
}

.page-index__promo-title {
  font-size: 1.8em;
  font-weight: bold;
  color: #113B7A; /* Main color */
  margin-bottom: 20px;
}

.page-index__promo-features {
  list-style-type: none;
  padding: 0;
  margin: 20px 0;
  font-size: 1.1em;
}

.page-index__promo-features li {
  margin-bottom: 10px;
}

.page-index__btn--promo {
  background-color: #d62828; /* Emphasize red */
  color: #ffffff;
  padding: 15px 40px;
  font-size: 1.2em;
  border-radius: 8px;
  text-decoration: none;
  display: inline-block;
  margin-top: 20px;
  transition: background-color 0.3s ease, transform 0.2s ease;
}

.page-index__btn--promo:hover {
  background-color: #ed1c24;
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.page-index__registration-tutorial-section p {
  margin-bottom: 15px;
  text-align: justify;
}

.page-index__faq-section p {
  margin-bottom: 15px;
  text-align: justify;
}

.page-index__faq-question {
  font-size: 1.3em;
  font-weight: bold;
  color: #113B7A; /* Main color */
  margin-top: 25px;
  margin-bottom: 10px;
}

.page-index__faq-answer {
  margin-bottom: 15px;
  padding-left: 10px;
  border-left: 3px solid #1D5FD1; /* Auxiliary color */
}

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

.page-index__contact-info {
  margin-top: 40px;
  text-align: center;
  background-color: #f0f8ff;
  padding: 25px;
  border-radius: 8px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  border: 1px solid #e0e0e0;
}

.page-index__contact-title {
  font-size: 1.6em;
  color: #113B7A; /* Main color */
  margin-bottom: 15px;
}

.page-index__contact-list {
  list-style-type: none;
  padding: 0;
  font-size: 1.05em;
}

.page-index__contact-list li {
  margin-bottom: 8px;
}

/* --- Responsive Styles --- */
@media (max-width: 1024px) {
  .page-index__article-wrap {
    padding: 0 15px;
  }

  .page-index__page-title {
    font-size: clamp(2em, 5vw, 3em);
  }

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

  .page-index__sub-title {
    font-size: 1.3em;
  }

  .page-index__fact-list {
    grid-template-columns: 1fr;
    max-width: 500px;
  }

  .page-index__promo-title {
    font-size: 1.6em;
  }

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

@media (max-width: 768px) {
  .page-index__article-wrap {
    padding: 0 15px !important;
    box-sizing: border-box !important;
    width: 100% !important;
    max-width: 100% !important;
  }

  /* Top Section Title + Dual CTA */
  .page-index__top-section {
    padding-top: 10px !important;
    padding-left: 15px;
    padding-right: 15px;
    box-sizing: border-box !important;
    width: 100% !important;
    max-width: 100% !important;
  }

  .page-index__page-title {
    font-size: clamp(1.8em, 7vw, 2.5em) !important;
    margin-bottom: 10px !important;
  }

  .page-index__page-description {
    font-size: 1em !important;
    margin-bottom: 20px !important;
  }

  .page-index__top-cta {
    flex-direction: column !important; /* Stack buttons vertically */
    gap: 10px !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
  }

  .page-index__btn {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 15px !important;
    font-size: 1em !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  /* Single-column Long Text Container */
  .page-index__section {
    padding: 20px 0 !important;
    margin-bottom: 15px !important;
    padding-left: 15px;
    padding-right: 15px;
    box-sizing: border-box !important;
    width: 100% !important;
    max-width: 100% !important;
  }

  .page-index__section-title {
    font-size: 1.6em !important;
    margin-bottom: 20px !important;
  }

  .page-index__announcement-title {
    font-size: 1.4em !important;
    margin-bottom: 15px !important;
  }

  .page-index__sub-title {
    font-size: 1.2em !important;
    margin-top: 20px !important;
    margin-bottom: 10px !important;
  }

  .page-index__fact-list {
    grid-template-columns: 1fr !important;
    margin: 20px auto !important;
  }

  .page-index__info-card,
  .page-index__warning-card {
    margin: 20px auto !important;
    padding: 15px !important;
  }

  .page-index__blockquote {
    margin: 20px auto !important;
    padding: 15px !important;
  }

  /* General Images and Figure */
  .page-index img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    box-sizing: border-box !important;
  }

  .page-index__wp-caption {
    margin: 20px auto !important;
    max-width: 100% !important;
  }

  /* Buttons and Button Containers */
  .page-index__promo-box {
    padding: 20px !important;
    margin: 0 auto !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    width: 100% !important;
  }

  .page-index__btn--promo {
    font-size: 1.1em !important;
    padding: 12px 25px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  /* Registration Tutorial and FAQ Blocks */
  .page-index__identification-list,
  .page-index__feature-list {
    padding-left: 20px !important;
  }

  .page-index__faq-question {
    font-size: 1.15em !important;
  }

  .page-index__faq-answer {
    font-size: 0.95em !important;
  }

  .page-index__contact-info {
    margin-top: 30px !important;
    padding: 20px !important;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-index p, .page-index li {
    font-size: 15px;
  }
}