:root {
  --primary-color: #C91F17;
  --secondary-color: #E53935;
  --button-gradient: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%);
  --card-bg: #D32F2F;
  --main-bg: #B71C1C;
  --text-main: #FFF5E1;
  --border-color: #F2B544;
  --glow-color: #FFCC66;
  --gold-color: #F4D34D;
  --deep-red: #7A0E0E;

  /* Default text colors for contrast on varying backgrounds */
  --dark-text: #333333;
  --light-text: #ffffff;
}

/* Base styles for the register page */
.page-register {
  font-family: 'Arial', sans-serif;
  color: var(--text-main); /* Default text color for the page */
  background: var(--main-bg); /* Default background for sections not explicitly dark */
}

.page-register__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  box-sizing: border-box;
}

.page-register__section-title {
  font-size: clamp(28px, 4vw, 42px); /* Responsive font size */
  font-weight: 700;
  text-align: center;
  color: var(--text-main);
  margin-bottom: 20px;
  line-height: 1.2;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.page-register__sub-title {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 600;
  color: var(--gold-color);
  margin-top: 30px;
  margin-bottom: 15px;
}

.page-register__section-intro {
  font-size: clamp(16px, 2vw, 18px);
  text-align: center;
  margin-bottom: 40px;
  line-height: 1.6;
  color: var(--text-main);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-register p {
  line-height: 1.7;
  margin-bottom: 15px;
  color: var(--text-main);
}

/* Button styles */
.page-register__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 30px;
  border-radius: 8px;
  font-size: 18px;
  font-weight: bold;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  text-align: center;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  max-width: 100%;
}

.page-register__btn--primary {
  background: var(--button-gradient);
  color: var(--deep-red); /* Darker text for gold button */
  box-shadow: 0 4px 15px rgba(244, 211, 77, 0.4);
}

.page-register__btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(244, 211, 77, 0.6);
  filter: brightness(1.1);
}

.page-register__btn--secondary {
  background: var(--primary-color);
  color: var(--text-main);
  border: 2px solid var(--border-color);
  box-shadow: 0 4px 15px rgba(201, 31, 23, 0.4);
}

.page-register__btn--secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(201, 31, 23, 0.6);
  filter: brightness(1.1);
}

.page-register__button-group {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 40px;
  flex-wrap: wrap; /* Allow wrapping for multiple buttons */
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

/* Hero Section */
.page-register__hero-section {
  position: relative;
  padding-top: 10px; /* Small top padding, body handles header offset */
  background: var(--main-bg); /* Fallback */
  color: var(--text-main);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 600px;
}

.page-register__hero-image {
  width: 100%;
  max-height: 600px; /* Limit image height */
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-register__hero-image img {
  width: 100%;
  height: auto;
  object-fit: cover; /* Cover for desktop, will change to contain for mobile */
  display: block;
}

.page-register__hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 40px 20px;
  max-width: 900px;
  box-sizing: border-box;
}

.page-register__main-title {
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 900;
  margin-bottom: 20px;
  color: var(--gold-color);
  line-height: 1.1;
  text-shadow: 0 3px 6px rgba(0, 0, 0, 0.6);
}

.page-register__hero-content .page-register__description {
  font-size: clamp(18px, 2.5vw, 22px);
  margin-bottom: 30px;
  color: var(--text-main);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* Why Register Section */
.page-register__why-register-section {
  padding: 80px 0;
  background: var(--main-bg); /* Using deep red for dark sections */
}

.page-register__dark-section {
  background: var(--main-bg);
  color: var(--text-main);
}

.page-register__benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-register__benefit-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  color: var(--text-main);
}

.page-register__benefit-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.page-register__benefit-card img {
  width: 200px;
  height: 200px;
  object-fit: contain;
  margin-bottom: 20px;
  border-radius: 8px;
  display: block;
  margin-left: auto;
  margin-right: auto;
  border: 2px solid var(--gold-color);
}

.page-register__benefit-card .page-register__card-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 15px;
  color: var(--gold-color);
}

/* Registration Guide Section */
.page-register__registration-guide-section {
  padding: 80px 0;
  background: var(--secondary-color); /* Lighter red for contrast */
  color: var(--text-main);
}

.page-register__guide-step {
  display: flex;
  align-items: center;
  gap: 40px;
  margin-bottom: 60px;
  background: var(--primary-color);
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-register__guide-step--reverse {
  flex-direction: row-reverse;
}

.page-register__guide-content {
  flex: 1;
  padding: 20px;
}

.page-register__guide-image {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-register__guide-image img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border-radius: 8px;
}

.page-register__step-title {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  margin-bottom: 15px;
  color: var(--gold-color);
  line-height: 1.3;
}

/* Security Section */
.page-register__security-section {
  padding: 80px 0;
}

.page-register__security-details {
  display: flex;
  align-items: center;
  gap: 40px;
  margin-top: 50px;
  background: var(--card-bg);
  border-radius: 12px;
  padding: 40px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-register__security-details img {
  flex-shrink: 0;
  width: 600px; /* Base size */
  height: auto;
  object-fit: contain;
  border-radius: 8px;
  border: 2px solid var(--border-color);
  display: block;
}

.page-register__security-text {
  flex: 1;
}

/* Promotions Section */
.page-register__promotions-section {
  padding: 80px 0;
  background: var(--secondary-color); /* Lighter red */
  color: var(--text-main);
}

.page-register__promo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-register__promo-card {
  background: var(--primary-color);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 25px;
  text-align: center;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  color: var(--text-main);
}

.page-register__promo-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.page-register__promo-card img {
  width: 100%;
  height: auto;
  max-height: 250px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  border: 2px solid var(--gold-color);
  display: block;
}

/* FAQ Section */
.page-register__faq-section {
  padding: 80px 0;
}

details.page-register__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid var(--border-color);
  overflow: hidden;
  background: var(--card-bg);
  color: var(--text-main);
}
details.page-register__faq-item summary.page-register__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
  color: var(--gold-color); /* FAQ question text color */
}
details.page-register__faq-item summary.page-register__faq-question::-webkit-details-marker {
  display: none;
}
details.page-register__faq-item summary.page-register__faq-question:hover {
  background: var(--deep-red); /* Darker hover for dark background */
}
.page-register__faq-qtext {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
}
.page-register__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: var(--gold-color); /* Toggle icon color */
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
}
details.page-register__faq-item .page-register__faq-answer {
  padding: 0 20px 20px;
  background: var(--deep-red); /* Slightly darker for answer background */
  border-radius: 0 0 5px 5px;
  color: var(--text-main); /* Answer text color */
}

/* Final CTA Section */
.page-register__final-cta-section {
  padding: 80px 0;
  text-align: center;
}

/* General image rules for content area */
.page-register img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-register__main-title {
    font-size: clamp(32px, 4.5vw, 55px);
  }
  .page-register__hero-content .page-register__description {
    font-size: clamp(16px, 2.2vw, 20px);
  }
  .page-register__guide-step {
    flex-direction: column;
    text-align: center;
    padding: 20px;
  }
  .page-register__guide-step--reverse {
    flex-direction: column;
  }
  .page-register__security-details {
    flex-direction: column;
    text-align: center;
    padding: 30px;
  }
  .page-register__security-details img {
    width: 100%;
    max-width: 500px;
  }
}

@media (max-width: 768px) {
  /* General mobile container/padding */
  .page-register__container {
    padding-left: 15px;
    padding-right: 15px;
  }

  /* HERO 主图区域 */
  .page-register__hero-section {
    padding-top: 10px; /* Small top padding */
    min-height: auto;
  }
  .page-register__hero-image img {
    object-fit: contain !important; /* Prevent cropping */
    aspect-ratio: unset !important; /* Allow natural aspect ratio */
    width: 100% !important;
    height: auto !important;
  }
  .page-register__hero-content {
    padding: 20px 15px;
  }
  .page-register__main-title {
    font-size: clamp(28px, 8vw, 40px);
    margin-bottom: 15px;
  }
  .page-register__hero-content .page-register__description {
    font-size: 16px;
    margin-bottom: 25px;
  }

  /* 通用图片与容器 */
  .page-register img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-register__section,
  .page-register__card,
  .page-register__container,
  .page-register__why-register-section,
  .page-register__registration-guide-section,
  .page-register__security-section,
  .page-register__promotions-section,
  .page-register__final-cta-section {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* 按钮与按钮容器 */
  .page-register__btn {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding: 12px 20px;
    font-size: 16px;
  }
  .page-register__button-group {
    flex-direction: column !important; /* Stack buttons vertically */
    gap: 15px;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* 产品展示图区域 (Not explicitly present as a grid, but general card layout) */
  .page-register__benefits-grid,
  .page-register__promo-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-register__benefit-card,
  .page-register__promo-card {
    padding: 20px;
  }
  .page-register__benefit-card img {
    
    
  }
  .page-register__benefit-card .page-register__card-title {
    font-size: 20px;
  }
  .page-register__promo-card img {
    max-height: 200px;
  }


  /* 装饰主标题 + 长文 SEO 区 */
  .page-register__section-title {
    font-size: clamp(24px, 7vw, 36px);
    margin-bottom: 15px;
    text-align: center;
  }
  .page-register__section-intro {
    font-size: 15px;
    margin-bottom: 30px;
    text-align: center;
  }
  .page-register__guide-step {
    padding: 20px;
    gap: 20px;
  }
  .page-register__guide-content {
    padding: 0;
  }
  .page-register__step-title {
    font-size: 20px;
  }
  .page-register__security-details {
    padding: 25px;
    gap: 20px;
  }
  .page-register__security-text {
    text-align: center;
  }
  .page-register__sub-title {
    font-size: 20px;
  }

  /* FAQ */
  details.page-register__faq-item summary.page-register__faq-question { padding: 15px; }
  .page-register__faq-qtext { font-size: 15px; }
  .page-register__faq-toggle {
    margin-left: 10px;
    width: 24px;
    height: 24px;
    font-size: 20px;
  }
  details.page-register__faq-item .page-register__faq-answer {
    padding: 0 15px 15px;
  }
}