:root {
    /* Base Colors */
    --color-primary: #2F6BFF;
    --color-secondary: #6FA3FF;
    --color-background: #F4F7FB;
    --color-card-bg: #FFFFFF;
    --color-text-main: #1F2D3D;
    --color-text-black: #000000;
    --color-border: #D6E2FF;
    --color-glow: #A5C4FF;

    /* Button Gradient */
    --button-gradient: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
}

.page-register {
    background-color: var(--color-background);
    color: var(--color-text-main);
    font-family: Arial, sans-serif; /* Roboto-like气质 */
    line-height: 1.6;
    padding-top: 10px; /* Small top padding, main padding-top handled by body in shared.css */
}

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

/* Hero Section */
.page-register__hero-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding-bottom: 40px;
    background-color: var(--color-background); /* Ensure background for text */
}

.page-register__hero-image-wrapper {
    width: 100%;
    overflow: hidden; /* Ensure image doesn't overflow */
}

.page-register__hero-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    min-height: 200px; /* Enforce min image size */
}

.page-register__hero-content {
    padding: 20px;
    max-width: 800px;
    margin-top: 20px;
}

.page-register__main-title {
    font-size: clamp(2em, 4vw, 2.8em); /* Use clamp for H1 */
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text-black); /* Use black for main title for contrast */
    margin-bottom: 15px;
}

.page-register__description {
    font-size: 1.1em;
    color: var(--color-text-main);
    margin-bottom: 30px;
}

/* Form Section */
.page-register__form-section {
    padding: 60px 0;
    background-color: var(--color-background);
}

.page-register__section-title {
    font-size: clamp(1.8em, 3vw, 2.5em);
    color: var(--color-text-black);
    text-align: center;
    margin-bottom: 40px;
    font-weight: 600;
}

.page-register__form-wrapper {
    display: flex;
    flex-wrap: wrap; /* Allow wrapping for responsiveness */
    background-color: var(--color-card-bg);
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.page-register__form-image {
    width: 50%;
    height: auto;
    object-fit: cover;
    min-height: 200px; /* Enforce min image size */
    display: block;
}

.page-register__registration-form {
    width: 50%;
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

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

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

.page-register__form-input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-size: 1em;
    color: var(--color-text-main);
    background-color: #fcfdff;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.05);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.page-register__form-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-glow);
    outline: none;
}

.page-register__submit-button {
    background: var(--button-gradient);
    color: #FFFFFF;
    padding: 14px 25px;
    border: none;
    border-radius: 8px;
    font-size: 1.1em;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    width: 100%;
    margin-top: 10px;
}

.page-register__submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.page-register__login-text {
    text-align: center;
    margin-top: 25px;
    font-size: 0.95em;
    color: var(--color-text-main);
}

.page-register__login-link {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease;
}

.page-register__login-link:hover {
    color: #004dff; /* Slightly darker blue */
    text-decoration: underline;
}

/* Benefits Section */
.page-register__benefits-section {
    padding: 60px 0;
    background-color: var(--color-background);
}

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

.page-register__benefit-card {
    background-color: var(--color-card-bg);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--color-border);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-register__benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.page-register__benefit-icon {
    width: 100%; /* Ensure image takes full width of its container */
    max-width: 250px; /* Max width for icons to prevent them from being too large */
    height: auto;
    margin-bottom: 20px;
    display: block;
    margin-left: auto;
    margin-right: auto;
    min-width: 200px; /* Enforce min image size */
    min-height: 200px; /* Enforce min image size */
    object-fit: contain; /* Use contain to fit icons without cropping */
}

.page-register__benefit-title {
    font-size: 1.5em;
    color: var(--color-text-black);
    margin-bottom: 10px;
    font-weight: 600;
}

.page-register__benefit-description {
    color: var(--color-text-main);
    font-size: 0.95em;
}

/* How-To Section */
.page-register__how-to-section {
    padding: 60px 0;
    background-color: var(--color-background);
}

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

.page-register__step-card {
    background-color: var(--color-card-bg);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--color-border);
}

.page-register__step-image {
    width: 100%;
    height: auto;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 20px;
    min-width: 200px; /* Enforce min image size */
    min-height: 200px; /* Enforce min image size */
}

.page-register__step-title {
    font-size: 1.4em;
    color: var(--color-text-black);
    margin-bottom: 10px;
    font-weight: 600;
}

.page-register__step-description {
    color: var(--color-text-main);
    font-size: 0.95em;
}

/* Security Section */
.page-register__security-section {
    padding: 60px 0;
    background-color: var(--color-background);
}

.page-register__security-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-right: 30px;
}

.page-register__security-content,
.page-register__security-image {
    flex: 1;
}

.page-register__security-description {
    color: var(--color-text-main);
    font-size: 1em;
    margin-bottom: 20px;
}

.page-register__privacy-link {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease;
    display: inline-block;
}

.page-register__privacy-link:hover {
    color: #004dff;
    text-decoration: underline;
}

.page-register__security-image {
    width: 100%;
    height: auto;
    object-fit: cover;
    border-radius: 12px;
    min-width: 200px; /* Enforce min image size */
    min-height: 200px; /* Enforce min image size */
}

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

.page-register__faq-list {
    margin-top: 30px;
}

.page-register__faq-item {
    background-color: var(--color-card-bg);
    border-radius: 12px;
    padding: 25px 30px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    border: 1px solid var(--color-border);
}

.page-register__faq-question {
    font-size: 1.25em;
    color: var(--color-text-black);
    margin-bottom: 10px;
    font-weight: 600;
    cursor: pointer; /* Indicate interactivity */
}

.page-register__faq-answer {
    color: var(--color-text-main);
    font-size: 0.95em;
    display: none; /* Hidden by default, toggled by JS */
}

.page-register__faq-answer a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
}

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

.page-register__faq-image {
    width: 100%;
    height: auto;
    object-fit: cover;
    border-radius: 12px;
    margin-top: 40px;
    min-width: 200px; /* Enforce min image size */
    min-height: 200px; /* Enforce min image size */
}

/* Responsive adjustments */
@media (min-width: 769px) {
    .page-register__security-section .page-register__container {
        display: flex;
        gap: 30px;
        align-items: center;
    }
    .page-register__security-content {
        order: 1; /* Text first on desktop */
    }
    .page-register__security-image {
        order: 2; /* Image second on desktop */
    }
}

@media (max-width: 1024px) {
    .page-register__hero-content {
        padding: 15px;
    }
    .page-register__main-title {
        font-size: clamp(2em, 5vw, 2.5em);
    }
    .page-register__form-image,
    .page-register__registration-form {
        width: 100%;
    }
    .page-register__form-wrapper {
        flex-direction: column;
    }
    .page-register__form-image {
        order: -1; /* Image above form on smaller screens */
    }
    .page-register__form-image,
    .page-register__security-image,
    .page-register__faq-image,
    .page-register__benefit-icon,
    .page-register__step-image {
        max-width: 100%;
        height: auto;
        min-width: 200px;
        min-height: 200px;
    }
}

@media (max-width: 768px) {
    .page-register__container {
        padding: 15px;
    }
    .page-register__main-title {
        font-size: clamp(1.8em, 6vw, 2.2em);
    }
    .page-register__description {
        font-size: 1em;
    }
    .page-register__section-title {
        font-size: clamp(1.5em, 5vw, 2em);
    }
    .page-register__form-input,
    .page-register__submit-button {
        padding: 10px 12px;
        font-size: 1em;
    }
    .page-register__form-label,
    .page-register__login-text {
        font-size: 0.9em;
    }
    .page-register__benefits-grid,
    .page-register__steps-grid {
        grid-template-columns: 1fr;
    }
    .page-register__benefit-title,
    .page-register__step-title {
        font-size: 1.3em;
    }
    .page-register__security-section .page-register__container {
        flex-direction: column;
    }
    .page-register__security-content {
        padding-right: 0;
        margin-bottom: 30px;
    }
    .page-register__faq-question {
        font-size: 1.1em;
    }
    .page-register__faq-answer {
        font-size: 0.85em;
    }
    /* CRITICAL: Mobile content area image overflow prevention */
    .page-register img {
        max-width: 100%;
        height: auto;
    }
    .page-register {
        overflow-x: hidden; /* Prevent horizontal scroll */
    }
}