:root {
    --primary-color: #26A9E0; /* 淡蓝色 */
    --secondary-color: #FFFFFF; /* 白色 */
    --text-dark: #333333;
    --text-light: #ffffff;
    --button-login: #EA7C07; /* 登录按钮颜色 */
    --background-default: #FFFFFF; /* 默认背景色 */
    --black: #000000; /* 黑色 */
}

.page-register {
    color: var(--text-dark); /* 默认文字颜色为深色，因为body背景为白色 */
    background: var(--background-default);
    font-family: Arial, sans-serif;
    line-height: 1.6;
}

.page-register__hero-section {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 60px 20px;
    padding-top: var(--header-offset, 120px); /* 顶部间距以公用片段约定为准，避免被固定页头盖住 */
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)); /* 淡蓝色渐变背景 */
    color: var(--text-light); /* 确保文字在渐变背景上清晰 */
}

.page-register__hero-container {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%; /* 确保容器宽度 */
}

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

.page-register__hero-image img {
    width: 100%;
    height: auto;
    max-width: 100%;
    display: block;
    border-radius: 8px;
    object-fit: cover;
    filter: none; /* 🚨 禁止使用CSS filter改变图片颜色 */
}

.page-register__hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    width: 100%;
    padding: 0 20px; /* 增加内边距防止文字贴边 */
    box-sizing: border-box;
}

.page-register__hero-title {
    font-size: 3.2em;
    margin-bottom: 20px;
    color: var(--text-light);
    line-height: 1.2;
    font-weight: bold;
}

.page-register__hero-description {
    font-size: 1.3em;
    margin-bottom: 30px;
    color: var(--text-light);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-register__cta-button {
    display: inline-block;
    padding: 15px 40px;
    text-decoration: none;
    border-radius: 5px;
    font-size: 1.1em;
    font-weight: bold;
    margin-top: 20px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    cursor: pointer;
    max-width: 100%; /* 🚨 移动端按钮适配 */
    box-sizing: border-box; /* 🚨 移动端按钮适配 */
    white-space: normal; /* 🚨 移动端按钮适配 */
    word-wrap: break-word; /* 🚨 移动端按钮适配 */
}

.page-register__btn-primary {
    background: var(--primary-color);
    color: var(--text-light);
    border: 2px solid var(--primary-color);
}

.page-register__btn-primary:hover {
    background: #1e87b6; /* darken(var(--primary-color), 10%) */
    border-color: #1e87b6; /* darken(var(--primary-color), 10%) */
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}

.page-register__btn-secondary {
    background: var(--secondary-color);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    margin-left: 15px; /* 多个按钮间的间距 */
}

.page-register__btn-secondary:hover {
    background: #f0f0f0;
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
}

.page-register__section {
    padding: 80px 20px;
    text-align: center;
    background: var(--background-default);
}

.page-register__container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%; /* 🚨 移动端容器适配 */
    box-sizing: border-box; /* 🚨 移动端容器适配 */
}

.page-register__section-title {
    font-size: 2.5em;
    margin-bottom: 20px;
    color: var(--black);
    font-weight: bold;
}

.page-register__section-description {
    font-size: 1.1em;
    max-width: 900px;
    margin: 0 auto 40px auto;
    color: var(--text-dark);
}

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

.page-register__feature-item,
.page-register__benefit-item {
    background: var(--secondary-color);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e0e0e0;
}

.page-register__feature-item:hover,
.page-register__benefit-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.page-register__feature-title,
.page-register__benefit-title {
    font-size: 1.5em;
    color: var(--primary-color);
    margin-bottom: 15px;
    font-weight: bold;
}

.page-register__feature-list,
.page-register__step-list,
.page-register__note-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.page-register__feature-list li,
.page-register__step-list li,
.page-register__note-list li {
    margin-bottom: 10px;
    color: var(--text-dark);
    font-size: 1em;
    padding-left: 25px;
    position: relative;
}

.page-register__feature-list li::before,
.page-register__step-list li::before,
.page-register__note-list li::before {
    content: '✅';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.page-register__button-group {
    margin-top: 40px;
    display: flex;
    justify-content: center;
    gap: 20px; /* 按钮之间间距 */
    flex-wrap: wrap; /* 🚨 移动端按钮换行 */
    width: 100%; /* 🚨 移动端容器适配 */
    max-width: 100%; /* 🚨 移动端容器适配 */
    box-sizing: border-box; /* 🚨 移动端容器适配 */
}

.page-register__guide-steps {
    display: flex;
    flex-direction: column;
    gap: 50px;
    margin-top: 40px;
    text-align: left;
}

.page-register__step-item {
    background: var(--secondary-color);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #e0e0e0;
}

.page-register__step-title {
    font-size: 1.8em;
    color: var(--primary-color);
    margin-bottom: 15px;
    font-weight: bold;
}

.page-register__step-item p {
    color: var(--text-dark);
    margin-bottom: 15px;
}

.page-register__step-image {
    margin-top: 20px;
    text-align: center;
}

.page-register__step-image img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    filter: none; /* 🚨 禁止使用CSS filter改变图片颜色 */
}

.page-register__note-section {
    margin-top: 50px;
    background: #f0f8ff; /* Light blue background for notes */
    padding: 30px;
    border-radius: 10px;
    border: 1px solid #cceeff;
    text-align: left;
}

.page-register__note-title {
    font-size: 1.6em;
    color: var(--black);
    margin-bottom: 20px;
    font-weight: bold;
}

.page-register__note-list li {
    color: var(--text-dark);
}

.page-register__note-list li a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: bold;
}

.page-register__note-list li a:hover {
    text-decoration: underline;
}

.page-register__benefit-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 20px;
    filter: none; /* 🚨 禁止使用CSS filter改变图片颜色 */
}

/* FAQ Section */
.page-register__faq {
    background: #f5f5f5; /* Light grey background for contrast */
}

.page-register__faq-list {
    margin-top: 40px;
    text-align: left;
}

/* FAQ容器样式 */
.page-register__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

/* FAQ默认状态 - 答案隐藏 */
.page-register__faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
  padding: 0 15px;
  opacity: 0;
  color: var(--text-dark);
}

/* FAQ展开状态 - 🚨 使用!important和足够大的max-height确保一定能展开 */
.page-register__faq-item.active .page-register__faq-answer {
  max-height: 2000px !important; /* 🚨 使用!important确保优先级，值足够大以容纳任何内容 */
  padding: 20px 15px !important;
  opacity: 1;
  background: #f9f9f9;
  border-radius: 0 0 5px 5px;
}

/* 问题样式 */
.page-register__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  background: #fff;
  border: 1px solid #e0e0e0;
  border-radius: 5px;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.3s ease, border-color 0.3s ease;
  position: relative;
}

.page-register__faq-question:hover {
  background: #f5f5f5;
  border-color: #d0d0d0;
}

.page-register__faq-question:active {
  background: #eeeeee;
}

/* 问题标题样式 */
.page-register__faq-question h3 {
  margin: 0;
  padding: 0;
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  pointer-events: none; /* 防止h3标签阻止点击事件 */
  color: var(--black);
}

/* 切换图标 */
.page-register__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  line-height: 1;
  color: #666;
  transition: transform 0.3s ease, color 0.3s ease;
  flex-shrink: 0;
  margin-left: 15px;
  pointer-events: none; /* 防止图标阻止点击事件 */
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
}

.page-register__faq-item.active .page-register__faq-toggle {
  color: var(--primary-color); /* 展开时图标颜色 */
}

.page-register__faq-image {
  margin-top: 50px;
  text-align: center;
}

.page-register__faq-image img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  filter: none; /* 🚨 禁止使用CSS filter改变图片颜色 */
}

.page-register__call-to-action {
    background: var(--primary-color); /* Use primary color for CTA section */
    color: var(--text-light);
    padding: 80px 20px;
}

.page-register__call-to-action .page-register__section-title,
.page-register__call-to-action .page-register__section-description {
    color: var(--text-light); /* Ensure text is white on primary color background */
}

.page-register__dark-section {
  background: var(--primary-color);
  color: var(--text-light); /* 强制白色文字 */
}

.page-register__dark-section .page-register__section-title,
.page-register__dark-section .page-register__section-description {
  color: var(--text-light);
}

.page-register__dark-section .page-register__cta-button.page-register__btn-primary {
  background: var(--button-login); /* Use specific login button color */
  border-color: var(--button-login);
}
}