:root {
  --page-register-primary-color: #E53935;
  --page-register-secondary-color: #FF5A4F;
  --page-register-card-bg: #FFFFFF;
  --page-register-background-color: #F5F7FA;
  --page-register-text-main: #333333;
  --page-register-border-color: #E0E0E0;
  --page-register-gradient-button: linear-gradient(180deg, var(--page-register-secondary-color) 0%, var(--page-register-primary-color) 100%);
}

.page-register {
  font-family: Arial, sans-serif;
  color: var(--page-register-text-main);
  background-color: var(--page-register-background-color);
  line-height: 1.6;
}

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

/* HERO 主图区域 */
.page-register__hero-section {
  position: relative;
  overflow: hidden;
  text-align: center;
  padding-top: 10px; /* Small top padding, assuming shared.css handles body padding-top */
  padding-bottom: 50px;
  background-color: var(--page-register-primary-color); /* Fallback background */
  color: #ffffff;
}

.page-register__hero-image {
  width: 100%;
  height: 600px;
  overflow: hidden;
  margin-bottom: 30px;
}

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

.page-register__hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-register__hero-title {
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-register__hero-description {
  font-size: 1.15rem;
  margin-bottom: 30px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  color: rgba(255, 255, 255, 0.9);
}

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

/* 通用按钮样式 */
.page-register__btn-primary,
.page-register__btn-secondary,
.page-register__form-submit-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 30px;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}

.page-register__btn-primary, .page-register__form-submit-btn {
  background: var(--page-register-gradient-button);
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 15px rgba(229, 57, 53, 0.4);
}

.page-register__btn-primary:hover, .page-register__form-submit-btn:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(229, 57, 53, 0.6);
}

.page-register__btn-secondary {
  background: #ffffff;
  color: var(--page-register-primary-color);
  border: 2px solid var(--page-register-primary-color);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.page-register__btn-secondary:hover {
  background: var(--page-register-primary-color);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

/* 装饰主标题 */
.page-register__section-title {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 700;
  color: var(--page-register-primary-color);
  text-align: center;
  margin-bottom: 20px;
  padding-top: 40px;
}

.page-register__section-intro {
  font-size: 1.1rem;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
  color: #555555;
}

/* Why Register Section */
.page-register__why-register {
  padding: 60px 0;
  background-color: var(--page-register-card-bg);
}

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

.page-register__feature-item {
  background: var(--page-register-card-bg);
  border: 1px solid var(--page-register-border-color);
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-register__feature-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.page-register__feature-item img {
  width: 100%;
  max-width: 250px;
  height: auto;
  margin-bottom: 20px;
  display: block;
  margin-left: auto;
  margin-right: auto;
  min-width: 200px;
  min-height: 200px;
  object-fit: contain;
}

.page-register__feature-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--page-register-primary-color);
}

.page-register__feature-text {
  font-size: 1rem;
  color: #555555;
}

/* Registration Steps Section */
.page-register__registration-steps {
  padding: 60px 0;
  background-color: var(--page-register-background-color);
}

.page-register__steps-content {
  display: flex;
  align-items: flex-start;
  gap: 50px;
  margin-top: 40px;
}

.page-register__steps-image {
  flex: 1;
  min-width: 400px;
  max-width: 50%;
  text-align: center;
}

.page-register__steps-image img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  display: block;
  min-width: 200px;
  min-height: 200px;
}

.page-register__steps-list {
  flex: 1;
  max-width: 50%;
}

.page-register__step-item {
  background: var(--page-register-card-bg);
  border: 1px solid var(--page-register-border-color);
  border-radius: 10px;
  padding: 25px;
  margin-bottom: 20px;
  position: relative;
  padding-left: 60px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.page-register__step-number {
  position: absolute;
  left: 20px;
  top: 25px;
  width: 30px;
  height: 30px;
  background: var(--page-register-primary-color);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
}

.page-register__step-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--page-register-primary-color);
  margin-bottom: 10px;
}

.page-register__step-description {
  font-size: 1rem;
  color: #555555;
}

.page-register__registration-form {
  margin-top: 20px;
  padding: 20px;
  background: #f9f9f9;
  border-radius: 8px;
  border: 1px solid #e0e0e0;
}

.page-register__form-group {
  margin-bottom: 15px;
}

.page-register__form-label {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--page-register-text-main);
}

.page-register__form-input {
  width: calc(100% - 20px);
  padding: 12px 10px;
  border: 1px solid var(--page-register-border-color);
  border-radius: 5px;
  font-size: 1rem;
  color: var(--page-register-text-main);
  background-color: #ffffff;
  box-sizing: border-box;
}

.page-register__form-input:focus {
  border-color: var(--page-register-primary-color);
  outline: none;
  box-shadow: 0 0 0 2px rgba(229, 57, 53, 0.2);
}

.page-register__form-submit-btn {
  width: 100%;
  margin-top: 20px;
}

/* Security and Privacy Section */
.page-register__security-privacy {
  padding: 60px 0;
  background-color: var(--page-register-card-bg);
}

.page-register__security-content {
  display: flex;
  align-items: center;
  gap: 50px;
  margin-top: 40px;
}

.page-register__security-image {
  flex: 1;
  max-width: 50%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  display: block;
  min-width: 200px;
  min-height: 200px;
}

.page-register__security-list {
  flex: 1;
  max-width: 50%;
  list-style: none;
  padding: 0;
}

.page-register__security-item {
  font-size: 1.05rem;
  margin-bottom: 15px;
  position: relative;
  padding-left: 30px;
  color: #555555;
}

.page-register__security-item::before {
  content: '✅';
  position: absolute;
  left: 0;
  color: var(--page-register-primary-color);
  font-size: 1.2rem;
  line-height: 1;
}

.page-register__privacy-link {
  margin-top: 40px;
  display: block;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

/* Promotions Section */
.page-register__promotions {
  padding: 60px 0;
  background-color: var(--page-register-background-color);
}

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

.page-register__promotion-card {
  background: var(--page-register-card-bg);
  border: 1px solid var(--page-register-border-color);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-align: center;
}

.page-register__promotion-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.page-register__promotion-card img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  display: block;
  min-width: 200px;
  min-height: 200px;
}

.page-register__promotion-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--page-register-primary-color);
  margin: 20px 15px 10px;
}

.page-register__promotion-card p {
  font-size: 1rem;
  color: #555555;
  padding: 0 15px 20px;
}

.page-register__view-promotions-btn {
  margin-top: 50px;
  display: block;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

/* FAQ Section */
.page-register__faq-section {
  padding: 60px 0;
  background-color: var(--page-register-card-bg);
}

.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 var(--page-register-border-color);
  overflow: hidden;
  background: var(--page-register-card-bg);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}
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(--page-register-text-main);
  font-size: 1.1rem;
  font-weight: 600;
}
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: 1.1rem;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: var(--page-register-primary-color);
}
.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 8px 8px;
  color: #555555;
}
details.page-register__faq-item .page-register__faq-answer p {
  margin: 0;
  padding-top: 10px;
  font-size: 1rem;
}


/* --- Responsive Styles --- */

/* For screens smaller than 1024px (general tablet/smaller desktop) */
@media (max-width: 1024px) {
  .page-register__container {
    padding: 15px;
  }

  .page-register__hero-image {
    height: 500px;
  }

  .page-register__hero-title {
    font-size: clamp(2rem, 4.5vw, 3rem);
  }

  .page-register__hero-description {
    font-size: 1rem;
  }

  .page-register__cta-buttons {
    flex-direction: column;
    gap: 15px;
    max-width: 350px;
    margin-left: auto;
    margin-right: auto;
  }

  .page-register__btn-primary,
  .page-register__btn-secondary,
  .page-register__form-submit-btn {
    width: 100%;
    padding: 12px 25px;
    font-size: 1rem;
  }

  .page-register__section-title {
    font-size: clamp(1.6rem, 3.5vw, 2.4rem);
    padding-top: 30px;
  }

  .page-register__section-intro {
    font-size: 1rem;
    margin-bottom: 30px;
  }

  .page-register__steps-content,
  .page-register__security-content {
    flex-direction: column;
    gap: 30px;
  }

  .page-register__steps-image,
  .page-register__steps-list,
  .page-register__security-image,
  .page-register__security-list {
    max-width: 100%;
    min-width: unset;
  }

  .page-register__security-image {
    order: -1;
  }

  .page-register__promotions-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }

  .page-register__promotion-card img {
    height: 200px;
  }
}

/* For screens smaller than 768px (mobile) */
@media (max-width: 768px) {
  .page-register {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-register__container {
    padding: 0 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  /* HERO 主图区域 - 移动端 */
  .page-register__hero-section {
    padding-top: 10px;
    padding-bottom: 30px;
  }

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

  .page-register__hero-image img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    object-fit: contain !important; /* Force contain for mobile */
    aspect-ratio: unset !important;
    min-width: 200px;
    min-height: 200px;
  }

  .page-register__hero-title {
    font-size: clamp(1.8rem, 7vw, 2.5rem);
    margin-bottom: 15px;
    padding: 0 15px;
  }

  .page-register__hero-description {
    font-size: 0.95rem;
    margin-bottom: 25px;
    padding: 0 15px;
  }

  .page-register__cta-buttons {
    flex-direction: column !important;
    gap: 10px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding: 0 15px;
  }

  /* 按钮与按钮容器 - 移动端 */
  .page-register__btn-primary,
  .page-register__btn-secondary,
  .page-register__form-submit-btn {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding: 12px 15px;
    font-size: 1rem;
  }

  /* 装饰主标题 + 长文 SEO 区 - 移动端 */
  .page-register__section-title {
    font-size: clamp(1.5rem, 6vw, 2rem);
    padding-top: 30px;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-register__section-intro {
    font-size: 0.95rem;
    margin-bottom: 25px;
    padding: 0 15px;
  }

  /* 通用图片与容器 - 移动端 */
  .page-register img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block;
    min-width: 200px;
    min-height: 200px;
  }

  .page-register__section,
  .page-register__card,
  .page-register__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* 产品展示图区域 (General grid for non-gameshow) - 移动端 */
  .page-register__features-grid,
  .page-register__promotions-grid {
    grid-template-columns: 1fr; /* Single column for mobile */
    gap: 20px;
    padding: 0 15px;
    overflow-x: hidden; /* Prevent horizontal scroll */
  }

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

  .page-register__feature-title,
  .page-register__promotion-card h3 {
    font-size: 1.1rem;
  }

  .page-register__feature-text,
  .page-register__promotion-card p {
    font-size: 0.95rem;
  }

  .page-register__steps-content,
  .page-register__security-content {
    flex-direction: column;
    gap: 20px;
    padding: 0 15px;
  }

  .page-register__steps-image,
  .page-register__steps-list,
  .page-register__security-image,
  .page-register__security-list {
    max-width: 100%;
    width: 100%;
    min-width: unset;
  }

  .page-register__security-image {
    order: -1;
  }

  .page-register__step-item {
    padding: 20px;
    padding-left: 50px;
    margin-bottom: 15px;
  }

  .page-register__step-number {
    left: 15px;
    top: 20px;
    width: 25px;
    height: 25px;
    font-size: 1rem;
  }

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

  .page-register__registration-form {
    padding: 15px;
  }

  .page-register__form-input {
    width: 100%;
  }

  .page-register__security-item {
    font-size: 0.95rem;
    padding-left: 25px;
    margin-bottom: 10px;
  }

  .page-register__security-item::before {
    font-size: 1rem;
  }

  .page-register__privacy-link,
  .page-register__view-promotions-btn {
    margin-top: 30px;
    padding: 12px 15px;
  }

  /* FAQ 展开折叠功能 - 移动端 */
  details.page-register__faq-item summary.page-register__faq-question {
    padding: 15px;
    font-size: 1rem;
  }
  .page-register__faq-qtext {
    font-size: 1rem;
  }
  .page-register__faq-toggle {
    font-size: 20px;
    width: 24px;
    height: 24px;
  }
  details.page-register__faq-item .page-register__faq-answer {
    padding: 0 15px 15px;
  }
  details.page-register__faq-item .page-register__faq-answer p {
    font-size: 0.95rem;
  }
}