.page-index {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333333; /* Default dark text on light body background */
  background-color: #ffffff; /* Assuming body background is light, or this section provides its own light background */
}

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

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

.page-index__top-section {
  text-align: center;
  padding-top: 10px; /* Small top padding, rely on shared body padding-top */
  padding-bottom: 20px;
}

.page-index__page-title {
  font-size: clamp(2em, 5vw, 2.8em); /* Responsive H1 font size */
  font-weight: 700;
  color: #C91F17;
  margin-bottom: 15px;
  line-height: 1.2;
  text-align: center;
}

.page-index__intro-text {
  font-size: 1.1em;
  margin-bottom: 25px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: #333333;
}

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

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

.page-index__btn--primary {
  background: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%);
  color: #7A0E0E; /* Deep Red for text on gold button */
  border: 1px solid #F4D34D;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.page-index__btn--primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}

.page-index__btn--secondary {
  background-color: #C91F17; /* Main color */
  color: #FFF5E1; /* Main text color */
  border: 1px solid #E53935;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.page-index__btn--secondary:hover {
  background-color: #E53935;
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}

.page-index__section-title {
  font-size: 2em;
  font-weight: 700;
  color: #C91F17;
  margin-bottom: 25px;
  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: 1em;
  text-align: justify;
}

.page-index__feature-list,
.page-index__fact-list,
.page-index__promo-features,
.page-index__contact-list {
  list-style-type: disc;
  margin-left: 25px;
  margin-bottom: 1em;
  color: #333333;
}

.page-index__feature-list li,
.page-index__fact-list li,
.page-index__promo-features li,
.page-index__contact-list li {
  margin-bottom: 0.5em;
}

.page-index__feature-list {
  list-style-type: decimal;
}

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

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

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

.page-index__warning-card {
  background-color: #fff4f4;
  border-left: 5px solid #ff4141;
  border-radius: 8px;
  padding: 15px;
  margin-bottom: 30px;
  color: #333333;
}

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

.page-index__seo-content-section h2 {
  font-size: 1.8em;
  color: #C91F17;
  margin-top: 35px;
  margin-bottom: 20px;
  text-align: center;
}

.page-index__seo-content-section h3 {
  font-size: 1.5em;
  color: #E53935;
  margin-top: 30px;
  margin-bottom: 15px;
}

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

.page-index__wp-caption img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.page-index__wp-caption figcaption {
  font-style: italic;
  font-size: 0.9em;
  color: #555;
  margin-top: 10px;
}

.page-index__quote-text {
  font-style: italic;
  font-size: 1.2em;
  color: #555;
  border-left: 4px solid #C91F17;
  padding-left: 15px;
  margin: 30px 0;
}

.page-index__quote-author {
  display: block;
  text-align: right;
  font-weight: bold;
  margin-top: 10px;
  color: #777;
}

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

.page-index__promo-box {
  background-color: #fffbe6;
  border: 2px dashed #111;
  border-radius: 10px;
  padding: 30px;
  max-width: 800px;
  margin: 0 auto;
  color: #333333;
}

.page-index__promo-title {
  font-size: 2em;
  color: #d62828; /* Emphasized red */
  margin-bottom: 20px;
}

.page-index__btn--promo {
  background-color: #d62828; /* Red for promo CTA */
  color: #ffffff;
  border: none;
  margin-top: 25px;
  padding: 15px 40px;
  font-size: 1.2em;
}

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

.page-index__registration-tutorial-section h2 {
  font-size: 1.8em;
  color: #C91F17;
  margin-bottom: 25px;
  text-align: center;
}

.page-index__tutorial-step {
  font-size: 1.5em;
  color: #E53935;
  margin-top: 30px;
  margin-bottom: 15px;
}

.page-index__faq-section h2 {
  font-size: 1.8em;
  color: #C91F17;
  margin-bottom: 25px;
  text-align: center;
}

.page-index__faq-question-text {
  font-size: 1.2em;
  font-weight: bold;
  color: #333333;
  margin-top: 20px;
  margin-bottom: 10px;
}

.page-index__faq-answer-text {
  margin-bottom: 15px;
  color: #555555;
  text-align: justify;
}

.page-index__outro-text {
  margin-top: 30px;
  margin-bottom: 15px;
  font-size: 1.1em;
  text-align: center;
}

.page-index__contact-list {
  list-style-type: none;
  margin-left: 0;
  padding-left: 0;
  text-align: center;
}

.page-index__contact-list li {
  margin-bottom: 0.8em;
  color: #333333;
}

.page-index__contact-list li a {
  color: #C91F17;
  text-decoration: none;
}

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

/* Responsive styles */
@media (max-width: 1024px) {
  .page-index__page-title {
    font-size: clamp(1.8em, 6vw, 2.5em);
  }
  .page-index__intro-text {
    font-size: 1em;
    padding: 0 10px;
  }
  .page-index__btn {
    padding: 10px 25px;
    font-size: 1em;
  }
  .page-index__section-title {
    font-size: 1.8em;
  }
  .page-index__seo-content-section h2 {
    font-size: 1.6em;
  }
  .page-index__seo-content-section h3 {
    font-size: 1.3em;
  }
  .page-index__promo-title {
    font-size: 1.8em;
  }
  .page-index__btn--promo {
    font-size: 1.1em;
    padding: 12px 30px;
  }
  .page-index__tutorial-step,
  .page-index__faq-question-text {
    font-size: 1.3em;
  }
}

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

  /* 1. 顶区标题 + 双 CTA */
  .page-index__top-section {
    padding-top: 10px !important; /* Small top padding, rely on shared body padding-top */
    padding-bottom: 15px !important;
  }
  .page-index__page-title {
    font-size: clamp(1.6em, 7vw, 2.2em);
    margin-bottom: 10px;
  }
  .page-index__intro-text {
    font-size: 0.95em;
    margin-bottom: 20px;
    padding: 0;
  }
  .page-index__top-cta {
    flex-direction: column; /* Buttons stack vertically on mobile */
    gap: 10px;
  }
  .page-index__btn {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    padding: 12px 15px !important;
    font-size: 1em !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }
  
  /* 2. 单栏长文容器 */
  .page-index__section {
    padding: 20px 0 !important;
  }
  .page-index__section-title {
    font-size: 1.6em;
    margin-bottom: 20px;
  }
  .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 {
    font-size: 0.95em;
    text-align: left; /* Adjust for better mobile readability */
  }
  .page-index__feature-list,
  .page-index__fact-list,
  .page-index__promo-features,
  .page-index__contact-list {
    margin-left: 20px;
  }
  .page-index__info-card,
  .page-index__warning-card,
  .page-index__promo-box {
    padding: 15px !important;
    width: 100% !important;
    max-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;
  }
  .page-index__wp-caption {
    margin: 15px auto !important;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-index__wp-caption figcaption {
    font-size: 0.85em;
  }

  /* 4. 按钮与按钮容器 */
  .page-index__top-cta,
  .page-index__button-group,
  .page-index__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    flex-direction: column !important; /* Ensure vertical stacking for button groups */
    gap: 10px !important;
  }
  .page-index__btn--promo {
    width: 100% !important;
    max-width: 100% !important;
    font-size: 1.05em !important;
    padding: 12px 15px !important;
  }

  /* 5. 注册教程与 FAQ 区块 */
  .page-index__seo-content-section h2,
  .page-index__registration-tutorial-section h2,
  .page-index__faq-section h2 {
    font-size: 1.5em;
    margin-top: 25px;
    margin-bottom: 15px;
  }
  .page-index__seo-content-section h3,
  .page-index__tutorial-step {
    font-size: 1.2em;
    margin-top: 20px;
    margin-bottom: 10px;
  }
  .page-index__faq-question-text {
    font-size: 1.1em;
  }
  .page-index__quote-text {
    font-size: 1.05em;
    margin: 20px 0;
  }
  .page-index__promo-title {
    font-size: 1.6em;
  }
  .page-index__outro-text {
    font-size: 1em;
  }
  .page-index__contact-list {
    text-align: left;
  }
}