.page-register {
  font-family: 'Arial', sans-serif;
  color: #333333;
  background-color: var(--page-bg-color, #FFFFFF);
  line-height: 1.6;
}

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

.page-register__dark-bg {
  background-color: #017439;
  color: #ffffff;
}

.page-register__light-bg {
  background-color: #FFFFFF;
  color: #333333;
}

.page-register__section-title {
  font-size: 36px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 40px;
  color: inherit;
}

.page-register__dark-bg .page-register__section-title {
  color: #ffffff;
}

.page-register__main-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.2;
  color: #FFFF00; /* Đăng ký và đăng nhập font color */
  margin-bottom: 20px;
  text-align: center;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-register__description {
  font-size: 18px;
  line-height: 1.5;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 30px;
}

.page-register__hero-section {
  position: relative;
  padding-top: 10px; /* Small top padding, body handles --header-offset */
  padding-bottom: 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.page-register__hero-image {
  width: 100%;
  height: 500px; /* Fixed height for desktop */
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 40px;
}

.page-register__hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-register__hero-content {
  position: relative;
  z-index: 1;
  padding: 0 20px;
  text-align: center;
  max-width: 100%;
  box-sizing: border-box;
}

.page-register__cta-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

.page-register__btn-primary,
.page-register__btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 30px;
  border-radius: 8px;
  font-size: 18px;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.3s ease;
  min-width: 180px;
  cursor: pointer;
  border: 2px solid transparent;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-register__btn-primary {
  background-color: #C30808; /* Đăng ký button color */
  color: #FFFF00; /* Đăng ký và đăng nhập font color */
  border-color: #C30808;
}

.page-register__btn-primary:hover {
  background-color: #a30606;
  border-color: #a30606;
}

.page-register__btn-secondary {
  background-color: #017439;
  color: #ffffff;
  border-color: #017439;
}

.page-register__btn-secondary:hover {
  background-color: #005a2d;
  border-color: #005a2d;
}

.page-register__about-section,
.page-register__registration-guide,
.page-register__important-notes,
.page-register__promotions-section,
.page-register__faq-section,
.page-register__cta-conclusion {
  padding: 60px 0;
}

.page-register__article-body {
  max-width: 900px;
  margin: 0 auto;
  font-size: 17px;
  line-height: 1.7;
  text-align: justify;
}

.page-register__article-body p {
  margin-bottom: 20px;
}

.page-register__guide-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
  gap: 40px;
  margin-top: 40px;
}

.page-register__guide-item {
  background-color: #ffffff;
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-register__guide-title {
  font-size: 24px;
  font-weight: 700;
  color: #017439;
  margin-bottom: 20px;
}

.page-register__guide-item p {
  font-size: 16px;
  line-height: 1.6;
  color: #555555;
  text-align: center;
  flex-grow: 1;
}

.page-register__guide-image {
  width: 100%;
  max-width: 600px;
  height: auto;
  border-radius: 8px;
  margin-top: 25px;
  object-fit: cover;
}

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

.page-register__note-card {
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  color: #ffffff;
  display: flex;
  flex-direction: column;
}

.page-register__note-card .page-register__card-title {
  font-size: 22px;
  font-weight: 700;
  color: #FFFF00;
  margin-bottom: 15px;
}

.page-register__note-card p {
  font-size: 16px;
  line-height: 1.6;
  text-align: justify;
  flex-grow: 1;
}

.page-register__note-card a {
  color: #FFFF00;
  text-decoration: underline;
}

.page-register__note-card a:hover {
  color: #f0f000;
}

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

.page-register__promo-card {
  background-color: #ffffff;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  text-align: center;
}

.page-register__promo-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  display: block;
}

.page-register__promo-card .page-register__card-title {
  font-size: 22px;
  font-weight: 700;
  color: #017439;
  margin: 20px 15px 10px;
}

.page-register__promo-card p {
  font-size: 16px;
  line-height: 1.6;
  color: #555555;
  padding: 0 15px 20px;
  flex-grow: 1;
}

.page-register__promo-card .page-register__btn-primary {
  margin: 0 15px 20px;
  width: auto;
}

/* FAQ Styles */
details.page-register__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid #e0e0e0;
  overflow: hidden;
  background: #fff;
}
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;
}
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: #f5f5f5;
}
.page-register__faq-qtext {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: #333333;
}
.page-register__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: #666;
  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: #f9f9f9;
  border-radius: 0 0 5px 5px;
  color: #555555;
}

.page-register__faq-answer p {
    margin: 0;
}

.page-register__cta-conclusion {
  padding-top: 60px;
  padding-bottom: 80px;
  text-align: center;
}

.page-register__cta-conclusion .page-register__description {
  color: #ffffff;
}

/* --- General Image & Button Responsive Styles --- */
.page-register img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-register a[class*="btn"],
.page-register a[class*="button"] {
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-register__cta-buttons,
.page-register__button-group,
.page-register__btn-container {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

/* --- Responsive Adjustments --- */
@media (max-width: 1024px) {
  .page-register__hero-image {
    height: 400px;
  }
  .page-register__guide-steps {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
}

@media (max-width: 768px) {
  .page-register__container {
    padding: 15px;
  }

  /* HERO 主图区域 */
  .page-register__hero-section {
    padding-top: 10px; /* Small top padding, body handles --header-offset */
    padding-bottom: 40px;
  }
  .page-register__hero-image {
    height: 250px;
    margin-bottom: 20px;
  }
  .page-register__hero-image img {
    object-fit: contain !important; /* 禁止 cover 裁切两侧 */
    aspect-ratio: unset !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-register__main-title {
    font-size: clamp(1.8rem, 8vw, 2.5rem);
    margin-bottom: 15px;
  }
  .page-register__description {
    font-size: 16px;
    margin-bottom: 25px;
  }

  /* 按钮与按钮容器 */
  .page-register__cta-buttons {
    flex-direction: column;
    gap: 15px;
    padding: 0 15px;
  }
  .page-register__btn-primary,
  .page-register__btn-secondary,
  .page-register a[class*="btn"],
  .page-register a[class*="button"] {
    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__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;
    flex-wrap: wrap !important;
    gap: 10px;
  }

  .page-register__section-title {
    font-size: 28px;
    margin-bottom: 30px;
  }

  /* 通用图片与容器 */
  .page-register img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-register__about-section,
  .page-register__registration-guide,
  .page-register__important-notes,
  .page-register__promotions-section,
  .page-register__faq-section,
  .page-register__cta-conclusion {
    padding: 40px 0;
  }

  /* 装饰主标题 + 长文 SEO 区 */
  .page-register__article-body {
    font-size: 16px;
    line-height: 1.6;
    padding: 0 10px;
    text-align: left; /* Mobile default text align */
  }

  .page-register__guide-steps {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .page-register__guide-item {
    padding: 20px;
  }
  .page-register__guide-title {
    font-size: 20px;
    margin-bottom: 15px;
  }
  .page-register__guide-item p {
    font-size: 15px;
  }
  .page-register__guide-image {
    margin-top: 15px;
  }

  .page-register__notes-grid,
  .page-register__promo-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-register__note-card,
  .page-register__promo-card {
    padding: 20px;
  }
  .page-register__note-card .page-register__card-title,
  .page-register__promo-card .page-register__card-title {
    font-size: 20px;
  }
  .page-register__promo-image {
    height: 180px;
  }

  /* FAQ */
  details.page-register__faq-item summary.page-register__faq-question { padding: 15px; }
  .page-register__faq-qtext { font-size: 15px; }
  details.page-register__faq-item .page-register__faq-answer { padding: 0 15px 15px; }
}