/* style/index.css */
.page-index {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333333; /* Default text color for light background */
  background-color: #F5F7FA; /* Custom background 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; /* Adhere to ~10px top spacing */
  padding-bottom: 20px;
  text-align: center;
  background-color: #F5F7FA; /* Consistent with body background */
}

.page-index__page-title {
  font-size: clamp(2.2em, 4vw, 3.2em); /* Use clamp for H1 font size */
  font-weight: bold;
  color: #E53935;
  margin-bottom: 10px;
  line-height: 1.2;
}

.page-index__slogan {
  font-size: 1.1em;
  color: #555555;
  margin-bottom: 25px;
}

.page-index__top-cta {
  display: flex;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.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, transform 0.2s ease;
  min-height: 44px; /* Minimum touch target height */
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-index__btn--primary {
  background: linear-gradient(180deg, #FF5A4F 0%, #E53935 100%);
  color: #ffffff;
  border: none;
}

.page-index__btn--primary:hover {
  background: linear-gradient(180deg, #E53935 0%, #FF5A4F 100%);
  transform: translateY(-2px);
}

.page-index__btn--secondary {
  background-color: #ffffff;
  color: #E53935;
  border: 2px solid #E53935;
}

.page-index__btn--secondary:hover {
  background-color: #f0f0f0;
  transform: translateY(-2px);
}

.page-index__section-title {
  font-size: clamp(1.8em, 3vw, 2.5em);
  font-weight: bold;
  color: #E53935;
  text-align: center;
  margin-bottom: 30px;
  line-height: 1.3;
}

.page-index__section-title--small {
  font-size: 1.5em;
  color: #333333;
  margin-bottom: 20px;
}

.page-index__icon-bell {
  color: #FF5A4F;
  margin: 0 8px;
}

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

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

.page-index__emphasis-text a {
  color: #E53935;
  text-decoration: underline;
}

.page-index__feature-list,
.page-index__fact-list,
.page-index__form-list,
.page-index__promo-features,
.page-index__contact-info {
  list-style-type: disc;
  margin-left: 20px;
  margin-bottom: 20px;
  padding-left: 0;
}

.page-index__feature-list li,
.page-index__fact-list li,
.page-index__form-list li,
.page-index__promo-features li,
.page-index__contact-info li {
  margin-bottom: 8px;
}

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

.page-index__info-card p strong {
  color: #E53935;
}

.page-index__warning-card {
  background-color: #fff4f4;
  border-left: 5px solid #ff4141;
  border-radius: 8px;
  padding: 20px;
  margin-top: 30px;
  margin-bottom: 30px;
  color: #333333;
}

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

.page-index__seo-content h2,
.page-index__seo-content h3 {
  color: #E53935;
  margin-top: 30px;
  margin-bottom: 15px;
  line-height: 1.4;
}

.page-index__seo-content h2 {
  font-size: 2em;
  text-align: center;
}

.page-index__seo-content h3 {
  font-size: 1.5em;
}

.page-index__seo-content a {
  color: #E53935;
  text-decoration: underline;
}

.page-index__wp-caption {
  margin: 25px auto;
  max-width: 680px;
  text-align: center;
}

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

.page-index__wp-caption figcaption {
  font-style: italic;
  font-size: 0.9em;
  color: #666666;
  margin-top: 10px;
}

.page-index__blockquote-text {
  font-style: italic;
  font-size: 1.2em;
  color: #555555;
  border-left: 4px solid #E53935;
  padding-left: 15px;
  margin: 30px 0;
}

.page-index__promo-box {
  background-color: #fffbe6;
  border: 2px dashed #111;
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  margin-top: 40px;
  margin-bottom: 40px;
}

.page-index__promo-title {
  font-size: 1.8em;
  color: #E53935;
  margin-bottom: 20px;
}

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

.page-index__promo-features li {
  font-size: 1.1em;
  margin-bottom: 10px;
  color: #333333;
}

.page-index__btn--promo {
  background-color: #d62828;
  color: #ffffff;
  padding: 15px 35px;
  font-size: 1.2em;
  border-radius: 8px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.page-index__btn--promo:hover {
  background-color: #ff4141;
}

.page-index__registration-guide h2 {
  margin-bottom: 30px;
}

.page-index__step-title {
  font-size: 1.6em;
  color: #E53935;
  margin-top: 30px;
  margin-bottom: 15px;
}

.page-index__faq-section h2 {
  margin-bottom: 30px;
}

.page-index__faq-question {
  font-size: 1.4em;
  color: #E53935;
  margin-top: 25px;
  margin-bottom: 10px;
  cursor: default; /* FAQ is not accordion on homepage */
}

.page-index__faq-answer {
  margin-bottom: 15px;
}

.page-index__contact-info {
  list-style-type: none;
  padding: 0;
  margin-top: 30px;
}

.page-index__contact-info li {
  margin-bottom: 10px;
  font-size: 1.1em;
  color: #555555;
}

.page-index__contact-info a {
  color: #E53935;
  text-decoration: none;
}

.page-index__contact-info a:hover {
  text-decoration: underline;
}

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

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

  .page-index__page-title {
    font-size: clamp(2em, 4.5vw, 2.8em);
  }

  .page-index__section-title {
    font-size: clamp(1.6em, 3.5vw, 2.2em);
  }

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

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

  .page-index__step-title {
    font-size: 1.4em;
  }

  .page-index__faq-question {
    font-size: 1.3em;
  }
}

@media (max-width: 768px) {
  /* 1. 顶区标题 + 双 CTA */
  .page-index__top-section {
    padding-top: 10px !important;
    padding-bottom: 15px;
  }

  .page-index__page-title {
    font-size: clamp(1.8em, 6vw, 2.5em) !important; /* Adjusted for smaller screens */
    padding: 0 10px;
  }

  .page-index__slogan {
    font-size: 1em;
    padding: 0 15px;
  }

  .page-index__top-cta {
    flex-direction: column; /* Buttons stack vertically */
    gap: 10px;
    padding: 0 15px;
  }

  .page-index__btn {
    width: 100% !important; /* Full width for buttons */
    max-width: 100% !important;
    font-size: 1em !important;
    padding: 12px 15px !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  /* 2. 单栏长文容器 */
  .page-index__article-wrap {
    padding: 0 15px !important;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-index__section {
    padding: 25px 0 !important;
  }

  .page-index__section-title,
  .page-index__section-title--small {
    font-size: clamp(1.5em, 5vw, 2em) !important;
    margin-bottom: 20px !important;
    padding: 0 10px;
  }

  .page-index p,
  .page-index li {
    font-size: 0.95em;
    text-align: left; /* Adjust justify for better readability on mobile */
  }

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

  /* 3. 通用图片与 figure */
  .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;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-index__wp-caption figcaption {
    font-size: 0.85em;
    padding: 0 5px;
  }

  /* 4. 按钮与按钮容器 (already covered by .page-index__btn and .page-index__top-cta) */
  .page-index__btn--promo {
    font-size: 1.1em !important;
    padding: 12px 20px !important;
  }

  /* 5. 注册教程与 FAQ 区块 */
  .page-index__step-title {
    font-size: 1.4em !important;
    margin-top: 25px !important;
    margin-bottom: 10px !important;
    padding: 0 10px;
  }

  .page-index__faq-question {
    font-size: 1.2em !important;
    margin-top: 20px !important;
    margin-bottom: 8px !important;
    padding: 0 10px;
  }

  .page-index__contact-info {
    margin-top: 25px !important;
  }

  .page-index__contact-info li {
    font-size: 1em;
  }

  .page-index__blockquote-text {
    font-size: 1em !important;
    margin: 20px 0 !important;
    padding-left: 10px !important;
  }
}