.page-index {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333333; /* Default text color for light body background */
  background-color: #f0f2f5; /* Body background from shared.css */
}

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

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

.page-index__top-section {
  padding-top: 10px; /* Small top padding, body handles --header-offset */
  text-align: center;
  background-color: #f0f2f5;
}

.page-index__page-title {
  font-size: clamp(2.2em, 4vw, 3.2em); /* Responsive H1 font size */
  font-weight: 700;
  color: #C91F17;
  margin-bottom: 15px;
  line-height: 1.2;
}

.page-index__lead-text {
  font-size: 1.1em;
  color: #555555;
  margin-bottom: 25px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

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

.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;
  min-height: 44px; /* Minimum touch target height */
  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, #FFD86A 0%, #E6B800 100%);
  color: #7A0E0E; /* Deep Red text for contrast on gold button */
  border: 2px solid #F2B544;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.page-index__btn--secondary {
  background: #C91F17;
  color: #FFF5E1; /* Main text color for contrast on brand red */
  border: 2px solid #E53935;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.page-index__section-title {
  font-size: clamp(1.8em, 3.5vw, 2.5em);
  color: #C91F17;
  text-align: center;
  margin-bottom: 25px;
  font-weight: 700;
}

.page-index__section-title--notification {
  color: #E53935;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.page-index__icon {
  font-size: 1.2em;
}

.page-index__announcement-section p,
.page-index__brand-overview-section p,
.page-index__long-seo-content p,
.page-index__registration-tutorial-section p,
.page-index__faq-section p {
  margin-bottom: 1em;
  text-align: justify;
}

.page-index__core-values,
.page-index__fact-list,
.page-index__advantage-list,
.page-index__product-list,
.page-index__recognition-list,
.page-index__form-fields,
.page-index__promo-list,
.page-index__contact-list {
  list-style: none;
  padding: 0;
  margin-bottom: 1em;
}

.page-index__core-values li,
.page-index__fact-list li,
.page-index__advantage-list li,
.page-index__product-list li,
.page-index__recognition-list li,
.page-index__form-fields li,
.page-index__promo-list li,
.page-index__contact-list li {
  margin-bottom: 0.5em;
  padding-left: 1.5em;
  position: relative;
}

.page-index__core-values li::before,
.page-index__fact-list li::before,
.page-index__advantage-list li::before,
.page-index__product-list li::before,
.page-index__recognition-list li::before,
.page-index__form-fields li::before,
.page-index__promo-list li::before {
  content: '✓';
  color: #C91F17;
  position: absolute;
  left: 0;
  font-weight: bold;
}

.page-index__emphasis-text {
  font-style: italic;
  color: #E53935;
  text-align: center;
  font-size: 1.1em;
  margin-top: 20px;
}

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

.page-index__info-card {
  background-color: #f9f9f9;
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 20px;
  margin: 30px 0;
  color: #333333;
}

.page-index__info-card p strong {
  color: #C91F17;
}

.page-index__info-card ul {
  margin-top: 10px;
}

.page-index__info-card ul li::before {
  content: '★';
  color: #F4D34D;
}

.page-index__warning-card {
  background-color: #fff4f4;
  border-left: 5px solid #ff4141;
  border-radius: 8px;
  padding: 15px;
  margin: 30px 0;
  color: #d62828;
  font-size: 0.95em;
}

.page-index__warning-card strong {
  color: #d62828;
}

.page-index__long-seo-content h2,
.page-index__long-seo-content h3 {
  color: #C91F17;
  margin-top: 30px;
  margin-bottom: 15px;
  font-weight: 700;
}

.page-index__long-seo-content h2 {
  font-size: clamp(1.6em, 3vw, 2.2em);
  text-align: center;
}

.page-index__long-seo-content h3 {
  font-size: clamp(1.3em, 2.5vw, 1.8em);
  text-align: left;
  padding-left: 10px;
  border-left: 4px solid #F4D34D;
}

.page-index__wp-caption {
  margin: 20px auto;
  max-width: 680px;
  text-align: center;
  background-color: #ffffff;
  padding: 10px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.page-index__wp-caption img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 6px;
}

.page-index__figcaption {
  font-size: 0.9em;
  color: #777777;
  margin-top: 10px;
}

.page-index__blockquote {
  border-left: 5px solid #F4D34D;
  padding: 15px 20px;
  margin: 30px 0;
  background-color: #f9f9f9;
  font-style: italic;
  color: #555555;
  border-radius: 0 8px 8px 0;
}

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

.page-index__promo-box-section {
  background-color: #f0f2f5;
}

.page-index__promo-box {
  background-color: #fffbe6;
  border: 2px dashed #111;
  border-radius: 10px;
  padding: 30px;
  margin: 30px auto;
  max-width: 800px;
  text-align: center;
  color: #333333;
}

.page-index__promo-title {
  font-size: clamp(1.5em, 2.8vw, 2em);
  color: #d62828;
  margin-bottom: 20px;
  font-weight: 700;
}

.page-index__promo-list {
  margin-bottom: 25px;
}

.page-index__promo-list li::before {
  content: '🔥';
  color: #d62828;
}

.page-index__btn--promo {
  background: #d62828;
  color: #ffffff;
  border: 2px solid #ff4141;
  padding: 15px 35px;
  border-radius: 8px;
  font-size: 1.2em;
  font-weight: bold;
  text-transform: uppercase;
  text-decoration: none;
  display: inline-block;
  min-height: 44px;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-index__registration-tutorial-section h2,
.page-index__faq-section h2 {
  color: #C91F17;
  text-align: center;
  margin-bottom: 25px;
  font-weight: 700;
}

.page-index__step-by-step h3 {
  font-size: clamp(1.4em, 2.6vw, 1.9em);
  color: #E53935;
  margin-top: 30px;
  margin-bottom: 15px;
  font-weight: 700;
}

.page-index__form-fields li::before {
  content: '→';
  color: #0066ff;
}

.page-index__faq-item h3 {
  font-size: clamp(1.3em, 2.5vw, 1.8em);
  color: #C91F17;
  margin-top: 25px;
  margin-bottom: 10px;
  font-weight: 600;
}

.page-index__contact-info {
  margin-top: 40px;
  padding-top: 30px;
  border-top: 1px solid #eee;
  text-align: center;
}

.page-index__contact-title {
  font-size: clamp(1.5em, 2.8vw, 2em);
  color: #C91F17;
  margin-bottom: 20px;
  font-weight: 700;
}

.page-index__contact-list li::before {
  content: ''; /* Remove checkmark for contact list */
}

.page-index__contact-list li {
  padding-left: 0;
}

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

  .page-index__page-title {
    font-size: clamp(2em, 4.5vw, 3em);
  }

  .page-index__section-title {
    font-size: clamp(1.6em, 3.8vw, 2.2em);
  }

  .page-index__long-seo-content h2 {
    font-size: clamp(1.5em, 3.2vw, 2em);
  }

  .page-index__long-seo-content h3 {
    font-size: clamp(1.2em, 2.8vw, 1.6em);
  }

  .page-index__promo-title {
    font-size: clamp(1.4em, 3vw, 1.8em);
  }

  .page-index__btn--promo {
    font-size: 1.1em;
    padding: 12px 25px;
  }

  .page-index__registration-tutorial-section h2,
  .page-index__faq-section h2 {
    font-size: clamp(1.6em, 3.8vw, 2.2em);
  }

  .page-index__step-by-step h3 {
    font-size: clamp(1.3em, 2.8vw, 1.7em);
  }

  .page-index__faq-item h3 {
    font-size: clamp(1.2em, 2.6vw, 1.5em);
  }

  .page-index__contact-title {
    font-size: clamp(1.4em, 2.8vw, 1.8em);
  }
}

@media (max-width: 768px) {
  .page-index {
    font-size: 15px;
    line-height: 1.5;
  }

  .page-index__article-wrap {
    padding: 0 10px;
  }

  /* 1. 顶区标题 + 双 CTA */
  .page-index__top-section {
    padding-top: 10px !important; /* Ensure small top padding */
  }

  .page-index__page-title {
    font-size: clamp(1.8em, 6vw, 2.5em);
    margin-bottom: 10px;
  }

  .page-index__lead-text {
    font-size: 1em;
    margin-bottom: 20px;
    padding: 0 5px;
  }

  .page-index__top-cta {
    flex-direction: column; /* Buttons stack vertically */
    gap: 10px;
    margin-bottom: 20px;
    padding: 0 10px; /* Add padding to prevent overflow */
    width: 100%;
    box-sizing: border-box;
  }

  .page-index__btn {
    width: 100% !important; /* Force full width for buttons */
    max-width: 100% !important;
    font-size: 1em;
    padding: 10px 20px;
    min-height: 44px !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  /* 2. 单栏长文容器 */
  .page-index__section {
    padding: 20px 0;
  }

  .page-index__section-title {
    font-size: clamp(1.5em, 5vw, 2em);
    margin-bottom: 20px;
    padding: 0 5px;
  }

  .page-index__info-card,
  .page-index__warning-card,
  .page-index__promo-box {
    margin: 20px 0;
    padding: 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-index__long-seo-content h2 {
    font-size: clamp(1.4em, 4.5vw, 1.8em);
    padding: 0 5px;
  }

  .page-index__long-seo-content h3 {
    font-size: clamp(1.1em, 3.8vw, 1.5em);
    text-align: left;
    padding-left: 10px;
    border-left: 4px solid #F4D34D;
    padding-right: 5px;
  }

  /* 3. 通用图片与 figure */
  .page-index img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-index__wp-caption {
    margin: 15px auto;
    padding: 5px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-index__figcaption {
    font-size: 0.85em;
    padding: 0 5px;
  }

  /* 4. 按钮与按钮容器 (already covered in top-cta, but general rules for other buttons) */
  .page-index__btn--promo {
    width: 100% !important;
    max-width: 100% !important;
    font-size: 1.1em;
    padding: 12px 25px;
    min-height: 44px !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  /* 5. 注册教程与 FAQ 区块 */
  .page-index__registration-tutorial-section h2,
  .page-index__faq-section h2 {
    font-size: clamp(1.5em, 5vw, 2em);
    padding: 0 5px;
  }

  .page-index__step-by-step h3 {
    font-size: clamp(1.2em, 4vw, 1.6em);
    padding: 0 5px;
  }

  .page-index__faq-item h3 {
    font-size: clamp(1.1em, 3.8vw, 1.5em);
    padding: 0 5px;
  }

  .page-index__contact-title {
    font-size: clamp(1.4em, 4.5vw, 1.8em);
    padding: 0 5px;
  }

  .page-index__contact-info ul {
    padding: 0 5px;
  }

  .page-index__contact-list li {
    text-align: left;
  }
}