:root {
    --primary-color: #26A9E0;
    --secondary-color: #FFFFFF;
    --text-dark: #333333;
    --text-light: #ffffff;
    --login-button-color: #EA7C07;
    --background-color: #FFFFFF;
    --border-color: #e0e0e0;
}

.page-register {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text-dark); /* Default text color for light background */
    background-color: var(--background-color); /* Default body background */
}

/* HERO 主图区域样式 */
.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: 10px; /* 小额顶距，body padding-top 负责页头间距 */
    background-color: var(--background-color);
    overflow: hidden;
}

.page-register__hero-container {
    position: relative;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 30px;
}

.page-register__hero-image {
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

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

.page-register__hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    width: 100%;
    max-width: 800px;
}

.page-register__main-title {
    font-size: clamp(2.2rem, 4vw, 3.2rem); /* H1字号使用clamp */
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 15px;
    line-height: 1.2;
}

.page-register__description {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.page-register__cta-button {
    display: inline-block;
    padding: 15px 40px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: bold;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    text-align: center;
    max-width: 100%; /* Ensure button adapts to mobile */
    box-sizing: border-box;
    white-space: normal; /* Allow text wrap */
    word-wrap: break-word; /* Allow text break */
}

.page-register__btn-primary {
    background: var(--login-button-color); /* Use login button color as primary CTA */
    color: var(--text-light);
    border: 2px solid var(--login-button-color);
}

.page-register__btn-primary:hover {
    background: #c76706; /* Manually darkened version of EA7C07 */
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
}

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

.page-register__btn-secondary:hover {
    background: #1f8ec4; /* Manually darkened version of 26A9E0 */
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
}

/* Sections */
.page-register__section {
    padding: 80px 20px;
    background-color: var(--background-color);
}

.page-register__section--benefits {
    background-color: #f8f9fa; /* Light grey background for contrast */
}

.page-register__section--final-cta {
    padding: 60px 20px;
}

.page-register__container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%; /* Ensure container adapts to mobile */
    box-sizing: border-box;
}

.page-register__dark-bg {
    background: var(--primary-color);
    color: var(--text-light);
    padding: 40px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.page-register__section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 700;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 20px;
}

.page-register__section-title--light {
    color: var(--text-light);
}

.page-register__section-description {
    font-size: 1rem;
    color: var(--text-dark);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
}

.page-register__section-description--light {
    color: var(--text-light);
}

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

.page-register__benefit-item {
    text-align: center;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    background: var(--secondary-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.page-register__benefit-item img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 20px;
    min-width: 200px; /* Minimum size requirement */
    min-height: 200px; /* Minimum size requirement */
    object-fit: cover;
}

.page-register__benefit-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.page-register__benefit-text {
    font-size: 0.95rem;
    color: var(--text-dark);
}

/* Guide Steps */
.page-register__guide-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-register__step-item {
    background: var(--secondary-color);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    text-align: center;
    border: 1px solid var(--border-color);
}

.page-register__step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-color);
    color: var(--text-light);
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 20px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

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

.page-register__step-text {
    font-size: 0.95rem;
    color: var(--text-dark);
}

.page-register__cta-wrapper {
    text-align: center;
    margin-top: 60px;
}

/* Promotions Grid */
.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(--secondary-color);
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--border-color);
}

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

.page-register__promotion-card img {
    width: 100%;
    height: 220px; /* Fixed height for consistency */
    object-fit: cover;
    display: block;
    min-width: 200px; /* Minimum size requirement */
    min-height: 200px; /* Minimum size requirement */
}

.page-register__promotion-card .page-register__promotion-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-color);
    padding: 20px 20px 10px;
}

.page-register__promotion-card .page-register__promotion-text {
    font-size: 0.95rem;
    color: var(--text-dark);
    padding: 0 20px 20px;
}

.page-register__card-link {
    display: block;
    text-align: center;
    padding: 12px 20px;
    background: var(--primary-color);
    color: var(--text-light);
    text-decoration: none;
    font-weight: 600;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    transition: background-color 0.3s ease;
}

.page-register__card-link:hover {
    background: #1f8ec4; /* Manually darkened version of 26A9E0 */
}

/* FAQ Section */
.page-register__faq-list {
    margin-top: 40px;
}

details.page-register__faq-item {
    margin-bottom: 15px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    background: var(--secondary-color);
    box-shadow: 0 2px 10px 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;
}
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(--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: var(--text-dark);
}
details.page-register__faq-item .page-register__faq-answer p {
    margin-bottom: 0;
}


/* 移动端响应式设计 */
@media (max-width: 768px) {
    .page-register__hero-section {
        padding-top: 10px !important; /* body已留白；与桌面一致，小额顶距即可 */
        padding-bottom: 40px;
        padding-left: 15px;
        padding-right: 15px;
    }

    .page-register__hero-image {
        border-radius: 8px;
    }

    .page-register__main-title {
        font-size: 2rem;
    }

    .page-register__description {
        font-size: 1rem;
    }

    .page-register__cta-button {
        padding: 12px 25px;
        font-size: 1rem;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-bottom: 15px; /* Add space between buttons if they wrap */
    }
    
    .page-register__cta-wrapper .page-register__cta-button:last-child {
        margin-bottom: 0;
    }

    .page-register__section {
        padding: 40px 15px;
    }

    .page-register__container {
        padding-left: 15px;
        padding-right: 15px;
    }

    .page-register__section-title {
        font-size: 1.8rem;
    }

    .page-register__section-description {
        font-size: 0.95rem;
        margin-bottom: 30px;
    }

    .page-register__benefits-grid,
    .page-register__guide-steps,
    .page-register__promotions-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

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

    .page-register__benefit-item img,
    .page-register__promotion-card img {
        min-width: 100%; /* Ensure images are not smaller than container */
        min-height: 200px; /* Maintain minimum height */
    }

    .page-register__benefit-title,
    .page-register__step-title,
    .page-register__promotion-title {
        font-size: 1.2rem;
    }

    .page-register__benefit-text,
    .page-register__step-text,
    .page-register__promotion-text {
        font-size: 0.9rem;
    }

    details.page-register__faq-item summary.page-register__faq-question {
        padding: 15px;
    }
    .page-register__faq-qtext {
        font-size: 1rem;
    }
    details.page-register__faq-item .page-register__faq-answer {
        padding: 0 15px 15px;
    }

    /* 强制图片和容器的响应式 */
    .page-register img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
    
    .page-register__section,
    .page-register__card,
    .page-register__container,
    .page-register__dark-bg { /* Added dark-bg as it's a container */
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }

    /* 移动端按钮容器适配 */
    .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-direction: column !important; /* Force vertical stacking for button groups */
        gap: 10px;
    }
}