:root {
  --main-color: #11A84E; /* 主色调 */
  --secondary-color: #22C768; /* 辅助色 */
  --btn-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%); /* 按钮 */
  --card-bg: #11271B; /* Card BG */
  --bg-color: #08160F; /* 背景 */
  --text-main: #F2FFF6; /* Text Main */
  --text-secondary: #A7D9B8; /* Text Secondary */
  --border-color: #2E7A4E; /* 边框 */
  --glow-color: #57E38D; /* Glow */
  --gold-color: #F2C14E; /* Gold */
  --divider-color: #1E3A2A; /* Divider */
  --deep-green: #0A4B2C; /* Deep Green */
}

/* style/register.css */

/* --- Base Styles --- */
.page-register {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-main); /* Default text color for the page */
  background-color: var(--bg-color); /* From shared.css */
}

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

.page-register__section-title {
  font-size: clamp(28px, 4vw, 48px); /* H1 font size rule */
  font-weight: 700;
  text-align: center;
  margin-bottom: 20px;
  color: var(--text-main);
  line-height: 1.2;
}

.page-register__section-description {
  font-size: 18px;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
  color: var(--text-secondary);
}

/* --- Buttons --- */
.page-register__btn-primary {
  display: inline-block;
  background: var(--btn-gradient); /* Custom button color */
  color: #F2FFF6; /* Text Main */
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 18px;
  transition: background 0.3s ease;
  border: none;
  cursor: pointer;
  text-align: center;
}

.page-register__btn-primary:hover {
  background: linear-gradient(180deg, #13994A 0%, #2AD16F 100%);
}

.page-register__btn-secondary {
  display: inline-block;
  background: var(--bg-color); /* Background color */
  color: var(--main-color); /* Main color */
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 18px;
  transition: background 0.3s ease, color 0.3s ease;
  border: 2px solid var(--border-color); /* Border color */
  cursor: pointer;
  text-align: center;
}

.page-register__btn-secondary:hover {
  background: var(--main-color);
  color: #F2FFF6; /* Text Main */
}

.page-register__btn-large {
    padding: 18px 40px;
    font-size: 20px;
}

/* --- Card Styles --- */
.page-register__card {
  background-color: var(--card-bg); /* Custom Card BG */
  border: 1px solid var(--border-color); /* Custom Border color */
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.page-register__card-image {
  width: 100%;
  height: auto;
  border-radius: 8px;
  margin-bottom: 20px;
  object-fit: cover;
}

.page-register__card-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--text-main);
}

.page-register__card-text {
  font-size: 16px;
  color: var(--text-secondary);
}

/* --- Hero Section --- */
.page-register__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column; /* Image on top, content below */
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
  padding-top: 10px; /* Small top padding as body handles header offset */
  overflow: hidden;
  background-color: var(--deep-green); /* Deep Green for dark section */
}

.page-register__hero-image {
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 30px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-register__hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.page-register__hero-title {
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 800;
  color: var(--gold-color); /* Gold color for hero title */
  margin-bottom: 20px;
  line-height: 1.1;
}

.page-register__hero-description {
  font-size: 20px;
  color: var(--text-main); /* Text Main */
  margin-bottom: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* --- Why Join Section --- */
.page-register__why-join-section {
  padding: 80px 0;
  background-color: var(--bg-color); /* Background color */
  color: var(--text-main);
}

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

/* --- Steps Section --- */
.page-register__steps-section {
  padding: 80px 0;
  background-color: var(--deep-green); /* Deep Green */
  color: #F2FFF6; /* Text Main */
}

.page-register__steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
  margin-bottom: 60px;
}

.page-register__step-card {
  background-color: var(--card-bg); /* Card BG */
  border: 1px solid var(--border-color); /* Border color */
  color: var(--text-main);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  position: relative;
  text-align: left;
  padding-top: 60px;
}

.page-register__step-number {
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--main-color); /* Main color */
  color: #fff;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  font-weight: 700;
  border: 4px solid var(--deep-green); /* Deep Green */
}

.page-register__step-card .page-register__card-title {
  margin-top: 0;
  color: var(--text-main);
}

.page-register__step-card .page-register__card-text {
  color: var(--text-secondary);
}

.page-register__cta-form-wrapper {
  position: relative;
  max-width: 900px;
  margin: 60px auto 0;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.page-register__form-background-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.4); /* Darken background image for text readability */
  z-index: 0;
}

.page-register__registration-form {
  position: relative;
  z-index: 1;
  background-color: rgba(17, 39, 27, 0.85); /* Slightly transparent Card BG for overlay effect */
  padding: 40px;
  color: var(--text-main);
  border: none; /* Remove border as it's an overlay */
  box-shadow: none;
}

.page-register__form-title {
  font-size: 32px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 30px;
  color: var(--gold-color); /* Gold color */
}

.page-register__form-group {
  margin-bottom: 20px;
}

.page-register__form-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--text-main);
}

.page-register__form-input {
  width: calc(100% - 20px);
  padding: 12px 10px;
  border: 1px solid var(--border-color); /* Border color */
  border-radius: 6px;
  background-color: #0A1F16; /* Slightly lighter than Card BG */
  color: var(--text-main);
  font-size: 16px;
}

.page-register__form-input::placeholder {
  color: var(--text-secondary);
  opacity: 0.7;
}

.page-register__checkbox-group {
  display: flex;
  align-items: center;
  margin-top: 30px;
  margin-bottom: 30px;
}

.page-register__form-checkbox {
  margin-right: 10px;
  width: 20px;
  height: 20px;
  accent-color: var(--main-color); /* Accent color for checkbox */
}

.page-register__checkbox-group .page-register__link {
  color: var(--main-color); /* Main color for links */
  text-decoration: underline;
}

.page-register__submit-button {
  width: 100%;
  padding: 15px;
  font-size: 20px;
  margin-top: 20px;
}

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

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

/* --- FAQ Section --- */
.page-register__faq-section {
  padding: 80px 0;
  background-color: var(--deep-green); /* Deep Green */
  color: #F2FFF6; /* Text Main */
}

.page-register__faq-list {
  max-width: 900px;
  margin: 40px auto 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-register__faq-item {
  background-color: var(--card-bg); /* Card BG */
  border: 1px solid var(--border-color); /* Border color */
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  color: var(--text-main);
  overflow: hidden;
}

.page-register__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 18px;
  font-weight: 600;
  cursor: pointer;
  background-color: var(--card-bg); /* Card BG */
  color: var(--text-main);
  list-style: none; /* For <summary> tag */
}

/* Hide default marker for details/summary */
.page-register__faq-item summary::-webkit-details-marker {
  display: none;
}
.page-register__faq-item summary::marker {
  display: none;
}

.page-register__faq-qtext {
  flex-grow: 1;
  color: var(--text-main);
}

.page-register__faq-toggle {
  font-size: 24px;
  font-weight: 700;
  margin-left: 15px;
  color: var(--main-color); /* Main color */
}

.page-register__faq-answer {
  padding: 0 25px 20px;
  font-size: 16px;
  color: var(--text-secondary);
}

.page-register__faq-answer p {
  margin-top: 15px;
  margin-bottom: 0;
  color: var(--text-secondary);
}

/* --- Final CTA Section --- */
.page-register__cta-final-section {
  padding: 80px 0;
  text-align: center;
  background-color: var(--bg-color); /* Background color */
  color: var(--text-main);
}

.page-register__cta-final-section .page-register__section-title {
  color: var(--text-main);
}

.page-register__cta-final-section .page-register__section-description {
  margin-bottom: 60px;
}

.page-register__cta-final-section .page-register__btn-primary,
.page-register__cta-final-section .page-register__btn-secondary {
  margin: 0 10px;
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {
  .page-register__hero-section {
    padding: 40px 20px;
  }
  .page-register__hero-title {
    font-size: clamp(32px, 4.5vw, 50px);
  }
  .page-register__hero-description {
    font-size: 18px;
  }
  .page-register__registration-form {
    padding: 30px;
  }
  .page-register__form-title {
    font-size: 28px;
  }
}

@media (max-width: 768px) {
  .page-register__section-title {
    font-size: clamp(24px, 6vw, 36px);
  }
  .page-register__section-description {
    font-size: 16px;
    margin-bottom: 30px;
  }

  /* Mobile image responsiveness */
  .page-register img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  /* All content containers for mobile */
  .page-register__section,
  .page-register__card,
  .page-register__container,
  .page-register__hero-section,
  .page-register__why-join-section,
  .page-register__steps-section,
  .page-register__promotions-section,
  .page-register__faq-section,
  .page-register__cta-final-section,
  .page-register__cta-form-wrapper,
  .page-register__registration-form {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* Specific padding adjustments */
  .page-register__hero-section {
    padding-top: 10px !important; /* body handles --header-offset, small top padding for aesthetic */
    padding-bottom: 40px !important;
  }

  .page-register__hero-image {
    margin-bottom: 20px;
  }

  .page-register__hero-content {
    padding: 0;
  }

  .page-register__hero-title {
    font-size: clamp(28px, 7vw, 40px);
  }

  .page-register__hero-description {
    font-size: 16px;
    margin-bottom: 30px;
  }

  .page-register__benefits-grid,
  .page-register__steps-grid,
  .page-register__promo-cards {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 30px;
  }

  .page-register__step-card {
    padding: 50px 20px 20px;
  }

  .page-register__step-number {
    width: 50px;
    height: 50px;
    font-size: 28px;
    top: -15px;
  }

  .page-register__registration-form {
    padding: 25px;
  }

  .page-register__form-title {
    font-size: 24px;
    margin-bottom: 20px;
  }

  .page-register__form-input {
    width: calc(100% - 20px);
  }

  .page-register__checkbox-group {
    flex-direction: column;
    align-items: flex-start;
    margin-top: 20px;
    margin-bottom: 20px;
  }
  .page-register__form-checkbox {
    margin-bottom: 10px;
  }

  .page-register__cta-final-section .page-register__btn-primary,
  .page-register__cta-final-section .page-register__btn-secondary {
    display: block !important;
    width: calc(100% - 30px) !important; /* Account for padding */
    margin: 10px auto !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  .page-register__faq-question {
    padding: 15px 20px;
    font-size: 16px;
  }
  .page-register__faq-answer {
    padding: 0 20px 15px;
  }
  .page-register__faq-toggle {
    font-size: 20px;
  }
}