/* style/login.css */

/* Variables based on custom color scheme */
:root {
    --page-login-primary-color: #11A84E;
    --page-login-secondary-color: #22C768;
    --page-login-button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
    --page-login-card-bg: #11271B;
    --page-login-background: #08160F;
    --page-login-text-main: #F2FFF6;
    --page-login-text-secondary: #A7D9B8;
    --page-login-border-color: #2E7A4E;
    --page-login-glow-color: #57E38D;
    --page-login-gold-color: #F2C14E;
    --page-login-divider-color: #1E3A2A;
    --page-login-deep-green-color: #0A4B2C;
}

/* Base styles for the login page */
.page-login {
    font-family: 'Arial', sans-serif;
    color: var(--page-login-text-main); /* Default text color for dark background */
    background-color: var(--page-login-background); /* Overall page background */
    line-height: 1.6;
}

/* Ensure images are responsive and do not have filters */
.page-login img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    /* 禁止使用CSS filter改变图片颜色 */
    filter: none;
}

/* Containers */
.page-login__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    box-sizing: border-box;
}

/* Sections */
.page-login__hero-section {
    position: relative;
    padding-top: 10px; /* Small top padding, body handles header offset */
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    overflow: hidden; /* Ensure no overflow */
}

.page-login__hero-image-wrapper {
    width: 100%;
    max-height: 700px; /* Limit height to prevent overly tall hero */
    overflow: hidden;
}

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

.page-login__hero-content {
    position: relative; /* Relative positioning for content below image */
    z-index: 1;
    padding: 40px 20px;
    max-width: 900px;
    margin-top: -100px; /* Overlap slightly with image for visual flow */
    background: var(--page-login-card-bg); /* Dark background for content */
    border-radius: 12px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.4);
    border: 1px solid var(--page-login-border-color);
}


.page-login__main-title {
    color: var(--page-login-text-main);
    margin-bottom: 15px;
    font-weight: bold;
    letter-spacing: 1px;
    line-height: 1.2;
    /* Use clamp for font-size if absolutely necessary, but prefer not to set fixed large values */
    font-size: clamp(2rem, 5vw, 3.5rem);
}

.page-login__tagline {
    color: var(--page-login-text-secondary);
    font-size: 1.1rem;
    margin-bottom: 30px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-login__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap; /* Allow wrapping on smaller screens */
}

.page-login__btn-primary,
.page-login__btn-secondary {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    text-align: center;
    box-sizing: border-box; /* Crucial for responsive buttons */
    max-width: 100%; /* Ensure button doesn't overflow */
    white-space: normal; /* Allow text to wrap */
    word-wrap: break-word; /* Break long words */
}

.page-login__btn-primary {
    background: var(--page-login-button-gradient);
    color: #ffffff;
    border: none;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.page-login__btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.4);
    opacity: 0.9;
}

.page-login__btn-secondary {
    background-color: transparent;
    color: var(--page-login-primary-color);
    border: 2px solid var(--page-login-primary-color);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.page-login__btn-secondary:hover {
    background-color: var(--page-login-primary-color);
    color: #ffffff;
    transform: translateY(-3px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.page-login__info-section,
.page-login__security-section,
.page-login__cta-final-section {
    padding: 60px 0;
    text-align: center;
    background-color: var(--page-login-background); /* Default background */
    color: var(--page-login-text-main);
}

/* Light background section */
.page-login__light-bg {
    background-color: var(--page-login-deep-green-color); /* Using a darker green for light-bg sections for contrast */
    color: var(--page-login-text-main);
}

/* Dark background section */
.page-login__dark-bg {
    background-color: var(--page-login-card-bg);
    color: var(--page-login-text-main);
}


.page-login__section-title {
    color: var(--page-login-gold-color);
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.page-login__section-title::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--page-login-primary-color);
    border-radius: 2px;
}

.page-login__description {
    font-size: 1rem;
    color: var(--page-login-text-secondary);
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

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

.page-login__feature-card,
.page-login__step-card,
.page-login__security-item {
    background-color: var(--page-login-card-bg);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--page-login-border-color);
    text-align: center;
    transition: transform 0.3s ease;
}

.page-login__feature-card:hover,
.page-login__step-card:hover,
.page-login__security-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-login__feature-icon,
.page-login__security-icon {
    width: 100%;
    height: 150px; /* Fixed height for consistency */
    object-fit: contain; /* Ensure image fits without cropping */
    margin-bottom: 20px;
    border-radius: 8px;
}

.page-login__feature-title,
.page-login__step-title,
.page-login__security-title {
    color: var(--page-login-primary-color);
    font-size: 1.4rem;
    margin-bottom: 10px;
}

.page-login__feature-text,
.page-login__step-text,
.page-login__security-text {
    color: var(--page-login-text-secondary);
    font-size: 0.95rem;
}

.page-login__cta-bottom {
    margin-top: 60px;
    padding-top: 30px;
    border-top: 1px dashed var(--page-login-divider-color);
}

.page-login__cta-text {
    color: var(--page-login-text-main);
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.page-login__callout-text {
    color: var(--page-login-text-main);
    font-size: 1.1rem;
    margin-top: 40px;
    padding: 20px;
    background-color: var(--page-login-deep-green-color);
    border-left: 5px solid var(--page-login-gold-color);
    border-radius: 8px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* FAQ Section */
.page-login__faq-section {
    padding: 60px 0;
    text-align: center;
    background-color: var(--page-login-card-bg);
    color: var(--page-login-text-main);
}

.page-login__faq-list {
    max-width: 900px;
    margin: 40px auto 0 auto;
    text-align: left;
}

.page-login__faq-item {
    background-color: var(--page-login-background);
    margin-bottom: 15px;
    border-radius: 8px;
    border: 1px solid var(--page-login-border-color);
    overflow: hidden;
    transition: all 0.3s ease;
}

.page-login__faq-item[open] {
    background-color: var(--page-login-deep-green-color);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-login__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    cursor: pointer;
    font-weight: bold;
    font-size: 1.1rem;
    color: var(--page-login-text-main);
    background-color: var(--page-login-background); /* Ensure summary has background */
    user-select: none;
}

.page-login__faq-question::-webkit-details-marker,
.page-login__faq-question::marker {
    display: none;
}

.page-login__faq-toggle {
    font-size: 1.5rem;
    line-height: 1;
    color: var(--page-login-primary-color);
    margin-left: 15px;
    transition: transform 0.3s ease;
}

.page-login__faq-item[open] .page-login__faq-toggle {
    transform: rotate(45deg);
}

.page-login__faq-answer {
    padding: 0 25px 20px;
    font-size: 1rem;
    color: var(--page-login-text-secondary);
    line-height: 1.7;
}

.page-login__faq-answer p {
    margin: 0;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .page-login__container {
        padding-left: 15px;
        padding-right: 15px;
    }

    .page-login__hero-content {
        margin-top: -50px; /* Less overlap on mobile */
        padding: 30px 15px;
    }

    .page-login__main-title {
        font-size: clamp(1.8rem, 8vw, 2.5rem); /* Adjust for mobile */
    }

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

    .page-login__cta-buttons {
        flex-direction: column;
        gap: 15px;
    }

    .page-login__btn-primary,
    .page-login__btn-secondary {
        width: 100% !important;
        max-width: 100% !important;
        padding: 12px 20px;
        font-size: 1rem;
    }
    
    /* Image responsiveness */
    .page-login img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
    
    .page-login__hero-image-wrapper,
    .page-login__feature-card,
    .page-login__step-card,
    .page-login__security-item {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    .page-login__features-grid,
    .page-login__steps-grid,
    .page-login__security-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .page-login__section-title {
        font-size: clamp(1.5rem, 6vw, 2.2rem);
    }

    .page-login__description {
        font-size: 0.95rem;
    }

    .page-login__feature-title,
    .page-login__step-title,
    .page-login__security-title {
        font-size: 1.2rem;
    }

    .page-login__faq-question {
        padding: 15px 20px;
        font-size: 1rem;
    }

    .page-login__faq-answer {
        padding: 0 20px 15px;
        font-size: 0.9rem;
    }
    
    .page-login__video-section {
        padding-top: 10px !important; /* body已承担--header-offset，此处禁止var(--header-offset) */
    }
    
    /* Ensure all containing elements for images/buttons/videos are responsive */
    .page-login__section,
    .page-login__card,
    .page-login__container,
    .page-login__cta-buttons {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }
    .page-login__cta-buttons {
        flex-wrap: wrap !important;
        gap: 10px;
    }
}

/* Contrast fix if needed, though with the dark/light bg classes it should be fine */
.page-login__contrast-fix {
    background: #ffffff !important;
    color: #333333 !important;
    border: 1px solid #e0e0e0 !important;
}

.page-login__text-contrast-fix {
    color: #333333 !important;
    text-shadow: none !important;
}