.page-register__hero-section {
  position: relative;
  width: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  text-align: center;
  padding-top: 10px; /* Small top padding, relying on body for header offset */
  padding-bottom: 50px;
}

.page-register__hero-image-wrap {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

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

.page-register__hero-content-wrap {
  position: relative;
  z-index: 1;
  max-width: 900px;
  padding: 20px;
  background: rgba(0, 0, 0, 0.4); /* Dark overlay for text readability */
  border-radius: 10px;
}

.page-register__main-title {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: #FFFF00; /* Register and login font color */
}

.page-register__hero-description {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  line-height: 1.6;
  margin-bottom: 30px;
}

.page-register__cta-button {
  display: inline-block;
  padding: 15px 30px;
  background: #C30808; /* Register/Login button color */
  color: #FFFF00; /* Register/Login font color */
  font-size: 1.1rem;
  font-weight: 700;
  border-radius: 8px;
  text-decoration: none;
  transition: background-color 0.3s ease, transform 0.3s ease;
  border: none;
  cursor: pointer;
}

.page-register__cta-button:hover {
  background-color: #a30606;
  transform: translateY(-2px);
}

.page-register__section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  color: #017439;
  text-align: center;
  margin-bottom: 25px;
  line-height: 1.3;
}

.page-register__section-intro {
  font-size: 1.1rem;
  line-height: 1.7;
  color: #333333;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
}

.page-register__why-join-section,
.page-register__form-section,
.page-register__guide-section,
.page-register__faq-section,
.page-register__cta-final {
  padding: 60px 0;
  background: #FFFFFF;
  color: #333333;
}

.page-register__why-join-section {
  background-color: #f9f9f9;
}

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

.page-register__feature-card {
  background: #FFFFFF;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  padding: 30px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-register__feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.page-register__feature-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
}

.page-register__feature-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: #017439;
  margin-bottom: 15px;
}

.page-register__feature-description {
  font-size: 1rem;
  line-height: 1.6;
  color: #555555;
}

.page-register__form-section {
  background: linear-gradient(135deg, #e0ffe0, #ffffff);
  position: relative;
  overflow: hidden;
}

.page-register__registration-form {
  max-width: 600px;
  margin: 40px auto 0;
  background: #FFFFFF;
  padding: 40px;
  border-radius: 15px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

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

.page-register__form-label {
  display: block;
  font-size: 1rem;
  color: #333333;
  margin-bottom: 8px;
  font-weight: 600;
}

.page-register__form-input {
  width: calc(100% - 20px);
  padding: 12px 10px;
  border: 1px solid #cccccc;
  border-radius: 6px;
  font-size: 1rem;
  color: #333333;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.page-register__form-input:focus {
  border-color: #017439;
  box-shadow: 0 0 0 3px rgba(1, 116, 57, 0.2);
  outline: none;
}

.page-register__verification-input-group {
  display: flex;
  gap: 10px;
}

.page-register__verification-input {
  flex: 1;
}

.page-register__verification-button {
  padding: 12px 15px;
  background: #017439;
  color: #FFFFFF;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.page-register__verification-button:hover {
  background-color: #005f2c;
}

.page-register__checkbox-group {
  display: flex;
  align-items: center;
  margin-top: 25px;
  margin-bottom: 25px;
}

.page-register__checkbox-label {
  font-size: 0.95rem;
  color: #555555;
  margin-left: 10px;
  user-select: none;
}

.page-register__terms-link {
  color: #017439;
  text-decoration: none;
  font-weight: 600;
}

.page-register__terms-link:hover {
  text-decoration: underline;
}

.page-register__submit-button {
  width: 100%;
  padding: 15px;
  background: #C30808; /* Register button color */
  color: #FFFF00; /* Register button font color */
  font-size: 1.2rem;
  font-weight: 700;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.3s ease, transform 0.3s ease;
}

.page-register__submit-button:hover {
  background-color: #a30606;
  transform: translateY(-2px);
}

.page-register__login-prompt {
  text-align: center;
  margin-top: 25px;
  font-size: 1rem;
  color: #555555;
}

.page-register__login-link {
  color: #017439;
  text-decoration: none;
  font-weight: 600;
}

.page-register__login-link:hover {
  text-decoration: underline;
}

.page-register__form-image {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 40px auto 0;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.page-register__guide-section {
  background-color: #f0f0f0;
}

.page-register__guide-steps {
  list-style: none;
  padding: 0;
  margin-top: 40px;
  display: grid;
  gap: 30px;
}

.page-register__guide-item {
  background: #FFFFFF;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  counter-increment: step-counter;
  position: relative;
  padding-left: 80px;
}

.page-register__guide-item::before {
  content: "Bước " counter(step-counter);
  position: absolute;
  left: 30px;
  top: 30px;
  background: #017439;
  color: #FFFFFF;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.page-register__guide-step-title {
  font-size: 1.4rem;
  font-weight: 600;
  color: #017439;
  margin-bottom: 10px;
}

.page-register__guide-step-description {
  font-size: 1rem;
  line-height: 1.6;
  color: #555555;
}

.page-register__guide-image {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 60px auto 0;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.page-register__faq-section {
  background-color: #f9f9f9;
}

.page-register__faq-list {
  max-width: 800px;
  margin: 40px auto 0;
}

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-link {
  color: #017439;
  text-decoration: none;
  font-weight: 600;
}

.page-register__faq-link:hover {
  text-decoration: underline;
}

.page-register__cta-final {
  background: linear-gradient(135deg, #017439, #005f2c);
  color: #FFFFFF;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.page-register__cta-final .page-register__section-title {
  color: #FFFF00; /* Register/Login font color */
}

.page-register__cta-final .page-register__section-intro {
  color: #f0f0f0;
}

.page-register__cta-final .page-register__cta-button {
  margin-top: 30px;
}

.page-register__cta-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.2;
  z-index: 0;
}

.page-register__cta-final .page-register__container {
  position: relative;
  z-index: 1;
}

.page-register__form-error {
  color: #C30808;
  font-size: 0.85rem;
  margin-top: 5px;
  display: block;
}

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

/* Mobile responsiveness */
@media (max-width: 1024px) {
  .page-register__hero-content-wrap {
    max-width: 700px;
  }
}

@media (max-width: 849px) {
  .page-register__hero-image {
    object-fit: contain !important; /* HERO 主图区域 */
    aspect-ratio: unset !important;
  }
  .page-register__hero-section {
    padding-bottom: 30px;
  }
}

@media (max-width: 768px) {
  .page-register__hero-section {
    padding-top: 10px; /* 小顶距 */
    padding-bottom: 40px;
  }
  .page-register__hero-content-wrap {
    padding: 15px;
  }
  .page-register__main-title {
    font-size: clamp(1.8rem, 8vw, 2.5rem);
  }
  .page-register__hero-description {
    font-size: 0.95rem;
  }
  .page-register__cta-button {
    padding: 12px 25px;
    font-size: 1rem;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }
  .page-register__section-title {
    font-size: clamp(1.5rem, 7vw, 2.2rem);
  }
  .page-register__section-intro {
    font-size: 0.95rem;
    margin-bottom: 30px;
  }
  .page-register__why-join-section,
  .page-register__form-section,
  .page-register__guide-section,
  .page-register__faq-section,
  .page-register__cta-final {
    padding: 40px 0;
  }
  .page-register__features-grid {
    grid-template-columns: 1fr; /* 产品展示图区域: 2 列 × 3 行 (本页无，通用为 1 列) */
    gap: 20px;
  }
  .page-register__feature-image {
    height: 180px;
  }
  .page-register__feature-title {
    font-size: 1.3rem;
  }
  .page-register__registration-form {
    padding: 25px;
    margin-top: 20px;
  }
  .page-register__form-label {
    font-size: 0.95rem;
  }
  .page-register__form-input,
  .page-register__verification-button {
    padding: 10px;
    font-size: 0.95rem;
  }
  .page-register__checkbox-label {
    font-size: 0.9rem;
  }
  .page-register__submit-button {
    font-size: 1.1rem;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }
  .page-register__login-prompt {
    font-size: 0.95rem;
  }
  .page-register__guide-item {
    padding: 20px;
    padding-left: 65px;
  }
  .page-register__guide-item::before {
    left: 20px;
    top: 20px;
    width: 35px;
    height: 35px;
    font-size: 0.8rem;
  }
  .page-register__guide-step-title {
    font-size: 1.2rem;
  }
  .page-register__guide-step-description {
    font-size: 0.95rem;
  }
  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; }
  
  /* Article Body (long text) - general content area */
  .page-register__container {
    padding-left: 15px !important;
    padding-right: 15px !important;
    box-sizing: border-box !important;
    max-width: 100% !important;
    width: 100% !important;
  }
  
  /* General image responsiveness */
  .page-register img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  
  /* Buttons and button containers */
  .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__cta-buttons {
    display: flex;
    flex-direction: column;
  }
}