.page-index {
  background-color: #140C0C; /* Dark background as per custom color */
  color: #FFF1E8; /* Light text for contrast */
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
}

.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 {
  padding-top: 10px; /* Specific top padding, not var(--header-offset) */
  text-align: center;
  padding-bottom: 20px;
}

.page-index__page-title {
  font-size: clamp(2.2em, 4vw, 2.8em); /* Responsive font-size for H1 */
  color: #F3C54D; /* Gold color for main title */
  font-weight: bold;
  margin-bottom: 15px;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
}

.page-index__intro-description {
  font-size: 1.1em;
  max-width: 900px;
  margin: 0 auto 25px auto;
  line-height: 1.7;
  color: #FFF1E8;
}

.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;
  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;
  transition: background-color 0.3s ease, transform 0.2s ease;
}

.page-index__btn--primary {
  background: linear-gradient(180deg, #FFB04A 0%, #D86A14 100%); /* Button custom color */
  color: #140C0C; /* Dark text for primary button */
  border: none;
}

.page-index__btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(255, 176, 74, 0.4);
}

.page-index__btn--secondary {
  background-color: #7E0D0D; /* Deep Red for secondary button */
  color: #FFF1E8; /* Light text for secondary button */
  border: 2px solid #F3C54D; /* Gold border */
}

.page-index__btn--secondary:hover {
  transform: translateY(-2px);
  background-color: #6A1E1E; /* Darker Deep Red on hover */
  box-shadow: 0 4px 10px rgba(126, 13, 13, 0.4);
}

.page-index__section-title {
  font-size: 2.2em;
  color: #F3C54D; /* Gold color for section titles */
  font-weight: bold;
  margin-bottom: 25px;
  text-align: center;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.page-index__announcement-section p {
  margin-bottom: 15px;
  text-align: justify;
  color: #FFF1E8;
}

.page-index__feature-list {
  list-style-type: decimal;
  padding-left: 25px;
  margin-bottom: 20px;
  color: #FFF1E8;
}

.page-index__feature-list li {
  margin-bottom: 8px;
  font-size: 1.05em;
}

.page-index__highlight-text {
  text-align: center;
  font-style: italic;
  font-size: 1.1em;
  color: #E53030; /* Auxiliary Red */
}

.page-index__highlight-text a {
  color: #FFB04A; /* Gold for links in highlight */
  text-decoration: underline;
}

.page-index__brand-overview-section p {
  margin-bottom: 15px;
  text-align: justify;
  color: #FFF1E8;
}

.page-index__fact-list {
  list-style-type: none;
  padding-left: 0;
  margin-bottom: 30px;
  color: #FFF1E8;
}

.page-index__fact-list li {
  margin-bottom: 10px;
  font-size: 1.05em;
}

.page-index__fact-list strong {
  color: #FFB04A; /* Gold for strong text in fact list */
}

.page-index__info-card {
  background-color: #2A1212; /* Card BG custom color */
  border: 1px solid #6A1E1E; /* Border custom color */
  border-radius: 8px;
  padding: 25px;
  margin-bottom: 30px;
  color: #FFF1E8;
}

.page-index__info-card p {
  margin-bottom: 15px;
  text-align: left;
}

.page-index__info-card ul {
  list-style-type: disc;
  padding-left: 20px;
  margin-bottom: 15px;
}

.page-index__info-card em {
  font-size: 0.9em;
  color: #F3C54D; /* Gold for emphasis */
}

.page-index__warning-card {
  background-color: #140C0C; /* Background for warning card */
  border-left: 5px solid #E53030; /* Auxiliary Red for border */
  border-radius: 8px;
  padding: 20px;
  color: #FFF1E8;
}

.page-index__warning-card strong {
  color: #E53030; /* Auxiliary Red for strong text */
  display: block;
  margin-bottom: 10px;
}

.page-index__warning-card a {
  color: #FFB04A; /* Gold for links in warning */
  text-decoration: underline;
}

.page-index__seo-content-section h2 {
  font-size: 2em;
  color: #F3C54D; /* Gold for H2 in SEO content */
  margin-top: 35px;
  margin-bottom: 20px;
  text-align: justify;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.page-index__seo-content-section h3 {
  font-size: 1.6em;
  color: #FFB04A; /* Gold for H3 in SEO content */
  margin-top: 30px;
  margin-bottom: 15px;
  text-align: justify;
}

.page-index__seo-content-section p,
.page-index__seo-content-section li {
  margin-bottom: 15px;
  text-align: justify;
  color: #FFF1E8;
}

.page-index__identification-list {
  list-style-type: decimal;
  padding-left: 25px;
  margin-bottom: 20px;
  color: #FFF1E8;
}

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

.page-index__product-list {
  list-style-type: disc;
  padding-left: 25px;
  margin-bottom: 20px;
  color: #FFF1E8;
}

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

.page-index__seo-content-section a {
  color: #FFB04A; /* Gold for links in SEO content */
  text-decoration: underline;
}

.page-index__wp-caption {
  margin: 25px auto;
  max-width: 680px;
  text-align: center;
  background-color: #2A1212; /* Card BG */
  border: 1px solid #6A1E1E; /* Border */
  border-radius: 8px;
  padding: 10px;
  box-sizing: border-box;
}

.page-index__wp-caption img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 6px;
  margin-bottom: 10px;
}

.page-index__wp-caption figcaption {
  font-size: 0.95em;
  color: #FFF1E8;
  padding: 5px 0;
}

.page-index__blockquote-text {
  font-style: italic;
  font-size: 1.2em;
  line-height: 1.8;
  margin: 30px 0;
  padding: 20px 30px;
  border-left: 5px solid #F3C54D; /* Gold border */
  background-color: #2A1212; /* Card BG */
  border-radius: 8px;
  color: #FFF1E8;
}

.page-index__blockquote-cite {
  display: block;
  text-align: right;
  font-size: 1em;
  margin-top: 10px;
  color: #FFB04A; /* Gold for cite */
}

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

.page-index__promo-box {
  background-color: #2A1212; /* Card BG */
  border: 2px dashed #F3C54D; /* Gold dashed border */
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  color: #FFF1E8;
}

.page-index__promo-title {
  font-size: 2em;
  color: #E53030; /* Auxiliary Red */
  margin-bottom: 20px;
  font-weight: bold;
}

.page-index__promo-box p {
  margin-bottom: 20px;
  font-size: 1.1em;
  line-height: 1.7;
  color: #FFF1E8;
}

.page-index__promo-features {
  list-style-type: none;
  padding-left: 0;
  margin-bottom: 30px;
  font-size: 1.1em;
  color: #FFF1E8;
}

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

.page-index__promo-features li::before {
  content: '★';
  color: #F3C54D; /* Gold star */
  position: absolute;
  left: 0;
}

.page-index__btn--promo {
  background-color: #E53030; /* Auxiliary Red for promo button */
  color: #FFF1E8;
  padding: 15px 40px;
  border-radius: 8px;
  font-size: 1.2em;
  font-weight: bold;
  text-decoration: none;
  display: inline-block;
  transition: background-color 0.3s ease, transform 0.2s ease;
}

.page-index__btn--promo:hover {
  background-color: #C61F1F; /* Primary Red on hover */
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(229, 48, 48, 0.4);
}

.page-index__registration-tutorial-section h2 {
  font-size: 2em;
  color: #F3C54D; /* Gold for H2 */
  margin-top: 35px;
  margin-bottom: 20px;
  text-align: center;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.page-index__registration-tutorial-section p {
  margin-bottom: 20px;
  text-align: justify;
  color: #FFF1E8;
}

.page-index__step-by-step {
  margin-top: 30px;
}

.page-index__step-title {
  font-size: 1.8em;
  color: #FFB04A; /* Gold for step titles */
  margin-top: 30px;
  margin-bottom: 15px;
  text-align: left;
}

.page-index__step-by-step ul {
  list-style-type: disc;
  padding-left: 25px;
  margin-bottom: 15px;
  color: #FFF1E8;
}

.page-index__step-by-step a {
  color: #FFB04A; /* Gold for links in tutorial */
  text-decoration: underline;
}

.page-index__faq-section h2 {
  font-size: 2em;
  color: #F3C54D; /* Gold for H2 */
  margin-top: 35px;
  margin-bottom: 20px;
  text-align: center;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.page-index__faq-question {
  font-size: 1.5em;
  color: #FFB04A; /* Gold for FAQ questions */
  margin-top: 25px;
  margin-bottom: 10px;
  cursor: default; /* No JS accordion, so no pointer */
  font-weight: bold;
}

.page-index__faq-answer p {
  margin-bottom: 15px;
  text-align: justify;
  color: #FFF1E8;
}

.page-index__contact-info {
  list-style-type: none;
  padding-left: 0;
  margin-top: 25px;
  color: #FFF1E8;
}

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

.page-index__contact-info a {
  color: #FFB04A; /* Gold for contact links */
  text-decoration: underline;
}

/* --- Responsive Styles --- */

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

  .page-index__page-title {
    font-size: clamp(2em, 5vw, 2.5em);
  }

  .page-index__section-title {
    font-size: 2em;
  }

  .page-index__seo-content-section h2 {
    font-size: 1.8em;
  }

  .page-index__seo-content-section h3 {
    font-size: 1.4em;
  }

  .page-index__blockquote-text {
    font-size: 1.1em;
    padding: 15px 20px;
  }

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

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

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

  .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; /* Specific top padding */
    padding-left: 15px;
    padding-right: 15px;
    box-sizing: border-box;
  }

  .page-index__page-title {
    font-size: clamp(1.8em, 7vw, 2.2em);
    margin-bottom: 20px;
  }

  .page-index__intro-description {
    font-size: 1em;
    padding: 0 10px;
  }

  .page-index__top-cta {
    flex-direction: column;
    gap: 10px;
    padding: 0 10px;
  }

  .page-index__btn {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px !important;
    padding-right: 15px !important;
  }

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

  .page-index__section {
    padding: 20px 0 !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-index__section-title {
    font-size: 1.8em;
    margin-bottom: 20px;
  }

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

  .page-index__announcement-section p,
  .page-index__brand-overview-section p,
  .page-index__seo-content-section p,
  .page-index__seo-content-section li,
  .page-index__promo-box p,
  .page-index__faq-answer p {
    text-align: left;
  }

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

  .page-index__wp-caption {
    margin: 20px auto !important;
    padding: 8px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-index__wp-caption figcaption {
    font-size: 0.9em;
  }

  /* 4. 按钮与按钮容器 (already covered by .page-index__btn) */
  .page-index__top-cta,
  .page-index__button-group,
  .page-index__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    flex-wrap: wrap !important;
    gap: 10px;
  }

  /* 5. 注册教程与 FAQ 区块 */
  .page-index__registration-tutorial-section h2,
  .page-index__faq-section h2 {
    font-size: 1.8em;
  }

  .page-index__step-title {
    font-size: 1.5em;
    text-align: left;
  }

  .page-index__faq-question {
    font-size: 1.2em;
    text-align: left;
  }

  .page-index__blockquote-text {
    font-size: 1em;
    padding: 15px;
  }

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

  .page-index__btn--promo {
    font-size: 1em;
    padding: 12px 20px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
  }

  .page-index__contact-info {
    padding-left: 0;
  }
}