.page-register {
  font-family: 'Arial', sans-serif;
  color: #333333; /* Dark text for light body background #F4F7FB */
  line-height: 1.6;
}

/* Hero Section */
.page-register__hero-section {
  position: relative;
  display: flex;
  flex-direction: column; /* Image above text */
  align-items: center;
  text-align: center;
  padding-bottom: 40px;
  background-color: #F4F7FB; /* Body background color */
  padding-top: 10px; /* Small top padding, body handles header offset */
}

.page-register__hero-image {
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  box-sizing: border-box;
}

.page-register__hero-image img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover; /* Default for desktop */
}

.page-register__hero-content {
  max-width: 900px;
  margin: 20px auto 0;
  padding: 0 20px;
}

.page-register__hero-title {
  font-size: clamp(2.2rem, 4vw, 3.2rem); /* Use clamp for H1 font size */
  font-weight: 700;
  color: #1F2D3D; /* Text Main */
  margin-bottom: 15px;
  line-height: 1.2;
}

.page-register__hero-description {
  font-size: 1.1rem;
  color: #333333;
  margin-bottom: 30px;
}

.page-register__cta-button {
  display: inline-block;
  background: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
  color: #ffffff;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(47, 107, 255, 0.3);
}

.page-register__cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(47, 107, 255, 0.4);
}

/* General Section Styling */
.page-register__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
  box-sizing: border-box;
}

.page-register__section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: #1F2D3D;
  text-align: center;
  margin-bottom: 20px;
}

.page-register__section-description {
  font-size: 1rem;
  color: #333333;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
}

.page-register__light-bg {
  background-color: #F4F7FB; /* Background color */
  color: #333333;
}

.page-register__dark-section {
  background-color: #2F6BFF; /* Main brand color */
  color: #ffffff; /* White text for dark background */
}

.page-register__section-title--white,
.page-register__section-description--white {
  color: #ffffff;
}

/* Why Choose Us Section */
.page-register__why-choose-us .page-register__container {
  padding-top: 60px;
  padding-bottom: 60px;
}

.page-register__feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-register__feature-item {
  background: #ffffff;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  padding: 30px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: #333333;
}

.page-register__feature-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.page-register__feature-item img {
  max-width: 100%;
  height: auto;
  display: block;
  margin-bottom: 20px;
  border-radius: 8px;
  object-fit: cover;
  min-width: 200px; /* Min image size */
  min-height: 200px; /* Min image size */
}

.page-register__feature-title {
  font-size: 1.4rem;
  font-weight: 600;
  color: #1F2D3D;
  margin-bottom: 10px;
}

.page-register__feature-text {
  font-size: 0.95rem;
  color: #555555;
}

/* Registration Steps Section */
.page-register__registration-steps .page-register__container {
  padding-top: 60px;
  padding-bottom: 60px;
}

.page-register__steps-list {
  display: flex;
  justify-content: space-around;
  gap: 30px;
  margin-top: 40px;
}

.page-register__step-item {
  flex: 1;
  text-align: center;
  position: relative;
  padding: 20px;
  color: #ffffff;
}

.page-register__step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #6FA3FF; /* Auxiliary color */
  color: #ffffff;
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 20px;
  border: 3px solid #A5C4FF; /* Glow color */
}

.page-register__step-title {
  font-size: 1.3rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 10px;
}

.page-register__step-text {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.85);
}

.page-register__cta-button--dark-bg {
  background: #ffffff;
  color: #2F6BFF;
  box-shadow: 0 4px 15px rgba(255, 255, 255, 0.3);
  margin-top: 40px;
}

.page-register__cta-button--dark-bg:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 255, 255, 0.4);
}

/* Benefits Section */
.page-register__benefits-section .page-register__container {
  padding-top: 60px;
  padding-bottom: 60px;
}

.page-register__benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-register__benefit-card {
  background: #ffffff;
  border: 1px solid #D6E2FF; /* Border color */
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  padding: 30px;
  text-align: center;
  transition: all 0.3s ease;
  color: #333333;
}

.page-register__benefit-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.page-register__benefit-title {
  font-size: 1.3rem;
  font-weight: 600;
  color: #1F2D3D;
  margin-bottom: 10px;
}

.page-register__benefit-text {
  font-size: 0.95rem;
  color: #555555;
}

.page-register__center-button {
  text-align: center;
  margin-top: 50px;
}

.page-register__btn-primary {
  background: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
  color: #ffffff;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(47, 107, 255, 0.3);
}

.page-register__btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(47, 107, 255, 0.4);
}

/* FAQ Section */
.page-register__faq-section .page-register__container {
  padding-top: 60px;
  padding-bottom: 60px;
}

.page-register__faq-list {
  margin-top: 40px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

details.page-register__faq-item {
  margin-bottom: 15px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.1); /* Slightly transparent white for dark background */
  color: #ffffff; /* White text for dark background */
}
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: #ffffff;
}
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: rgba(255, 255, 255, 0.15);
}
.page-register__faq-qtext {
  flex: 1;
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: #ffffff;
}
.page-register__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: #ffffff;
  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: rgba(0, 0, 0, 0.1); /* Darker transparent background for answer */
  border-radius: 0 0 8px 8px;
  color: rgba(255, 255, 255, 0.9);
}

/* --- Responsive Design (Mobile) --- */
/* Mobile @media (max-width: 768px) MUST be complete for all modules */
@media (max-width: 849px) {
  /* HERO 主图区域 - 移动 object-fit:contain !important */
  .page-register__hero-image img {
    object-fit: contain !important;
    aspect-ratio: unset !important;
  }
}

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

  /* 通用图片与容器 */
  .page-register img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  
  .page-register__container,
  .page-register__hero-section,
  .page-register__why-choose-us,
  .page-register__registration-steps,
  .page-register__benefits-section,
  .page-register__faq-section,
  .page-register__feature-grid,
  .page-register__steps-list,
  .page-register__benefits-grid,
  .page-register__faq-list {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* HERO 主图区域 */
  .page-register__hero-section {
    padding-top: 10px; /* Small top padding, body handles header offset */
    padding-bottom: 20px;
  }

  .page-register__hero-title {
    font-size: 2rem;
    margin-bottom: 10px;
  }

  .page-register__hero-description {
    font-size: 1rem;
    margin-bottom: 20px;
  }

  /* 按钮与按钮容器 */
  .page-register__cta-button,
  .page-register__btn-primary,
  .page-register a[class*="button"],
  .page-register a[class*="btn"] {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px;
    padding-right: 15px;
    font-size: 1rem;
  }
  
  .page-register__center-button {
    margin-top: 30px;
  }

  .page-register__cta-buttons,
  .page-register__button-group,
  .page-register__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    display: flex; /* Ensure flex container */
    flex-direction: column; /* Stack buttons vertically */
    gap: 15px; /* Spacing between stacked buttons */
  }
  
  /* Why Choose Us Section */
  .page-register__why-choose-us .page-register__container,
  .page-register__registration-steps .page-register__container,
  .page-register__benefits-section .page-register__container,
  .page-register__faq-section .page-register__container {
    padding-top: 30px;
    padding-bottom: 30px;
  }

  .page-register__section-title {
    font-size: 1.8rem;
    margin-bottom: 15px;
  }

  .page-register__section-description {
    font-size: 0.95rem;
    margin-bottom: 30px;
  }

  .page-register__feature-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-register__feature-item {
    padding: 20px;
  }

  .page-register__feature-title {
    font-size: 1.2rem;
  }

  /* Registration Steps Section */
  .page-register__steps-list {
    flex-direction: column;
    gap: 20px;
  }

  .page-register__step-item {
    padding: 15px;
  }

  .page-register__step-number {
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
    margin-bottom: 15px;
  }

  .page-register__step-title {
    font-size: 1.1rem;
  }

  /* Benefits Section */
  .page-register__benefits-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-register__benefit-card {
    padding: 20px;
  }

  .page-register__benefit-title {
    font-size: 1.2rem;
  }

  /* FAQ Section */
  details.page-register__faq-item summary.page-register__faq-question {
    padding: 15px;
  }
  .page-register__faq-qtext {
    font-size: 1rem;
  }
  .page-register__faq-toggle {
    font-size: 20px;
    width: 24px;
    margin-left: 10px;
  }
  details.page-register__faq-item .page-register__faq-answer {
    padding: 0 15px 15px;
  }
}